Learning Preferences free essay sample

Describe your strongest dimension on the personality spectrum. My strongest dimension on the personality spectrum is a giver (32). Every word on the list of giver describes me. My honesty is probably one my strongest. As I get older and being the mother of two terrific boys, I just feel at this exact moment in my life there is no need to lie. Honesty is the key, but sometimes I feel I am a little too honest and may hurt someone’s feelings, but not intentionally. I just feel â€Å"it is what it is†. I love promoting peace whether it’s a world issue or family. I just think that everyone would be a lot happier in their lives if we can be honest with one another and promote positivity. I hate drama. 2. Describe how each practice activity reinforced or contradicted something about yourself. In the Personality Spectrum Assessment it contradicted me on being a visual learner. We will write a custom essay sample on Learning Preferences or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In the Multiple Pathways to Learning Assessment it resulted in me being under-developed, but in one of the activities in the Personality Spectrum it said that I was fine in this area. I must say it left me a little baffled, but at the same time I feel my answers can vary to certain situations that can me contradict myself in this case. I feel that I can adapt to different learning environments quite well, just like I’m learning the OLS. This is definitely an contradiction. The Barsch Learning Style Inventory activity made me realize that I am more proficient in the kinesthetic learning style than I am a visual learner. This activity made me think hard and deep about what my learning abilities are and what I thought they were. I definitely love working hands on and encouraging others. I am usually the one that normally starts dishing out ideas first when I am grouped up with others. .

Maslows Hierarchy of Needs

Maslows Hierarchy of Needs Free Online Research Papers The Humanistic Psychologist, Abraham Maslow, developed a 5-Level theory, known as the Hierarchy of Needs, by which to explain human motivation. According to the Hierarchy of Needs Theory, before human beings can seek to fulfill any other needs, our primary biological needs must be met (Maslow, 1970). This first level, according to Maslow’s Theory, addresses basic Physiological needs, including animal-level needs such as air to breathe, adequate food to eat, shelter against the elements, a living environment which is warm enough, sufficient sleep, and even sexual fulfillment on its simplest level (Mathes, 1981). Until these needs are met, humans can not possibly begin to address the meeting of more complex social or psychological needs beyond mere survival of the body. Thus, without the Physiological Needs being met we may experience illness, lack of comfort, irritation and other similar negative feelings in order to motivate us to address these needs and reach a homeostatic level of existence (Maslow, 1970). An example of the Physiological Needs level of Maslow’s Hierarchy of Needs would be our initial motivation to work or find employment. For it is through employment and work that the majority of modern human beings are able to provide themselves with the essentials of food, clothing, and proper shelter (Daft, 2008). Following fulfillment of our Physiological Needs, according to Maslow, we will naturally seek to satisfy our Safety Needs, which tend to be more psychological (Maslow, 1970). These needs include such things as establishing a sense of consistency and security within our families, homes and communities (Maslow, 1970). Safety Needs must be met before we can seek out a sense of belonging and love. An example of the significance of the need for Safety can be found where in situations where it is not being fulfilled. Children growing up in abusive or dysfunctional homes, or citizens living in the society of a war-torn nation cannot begin to devote attention to their needs of love and acceptance when their day-to-day living environments are unsafe and unstable (Mathes, 1981). Their full motivation is to seek a level of safety and consistency of living. The next level in the Hierarchy of Needs Theory focuses on our motivation to fulfill Belongingness and Love Needs. These needs are centered around the human desire to belong to a Group, to be non-sexually loved, valued, and esteemed as having worth and value (Maslow, 1970). This need motivates us to join religious groups, groups and work, and to seek out the approval and appreciation of others (Daft, 2008). An example of our Belongingness and Love Needs can be seen in those who perform, perhaps musically or theatrically, and who do so because of the acceptance the audiences gives by their applause. Next in the Hierarchy of Needs are Self-Esteem Needs, which involve two different areas. The first part of Self-Esteem Needs involves the sense of self-esteem which human beings achieve through competently mastering some task (Maslow, 1968). The second part of Self-Esteem Needs is related to our motivation to seek recognition. This need is a bit like the Belongingness Needs, however this need to be admired is based on a need to achieve social power (Daft, 2008). An example of this level of needs could be demonstrated in those people who run for public office merely for the authority, power, and fame that it brings them rather than for the purpose bettering the society in which the live. The final level in the Hierarchy of Needs, which human beings are only motivated to obtain once the previous needs are met, are the Self-Actualization Needs. This is the need of those who already â€Å"have everything,† and is the motivation to reach personal and spiritual growth, to pursue peace and esthetic values, commune with â€Å"god† (Maslow, 1970). An example of this level of needs would be those who seek spiritual betterment and the fulfilling of self through the pursuit of through religious enlightenment. With all other needs met, they are free to cater to the motivation for self-improvement. Thus is the Hierarchy of Needs developed by Maslow between 1943 and 1953, including examples of each of its five levels References Maslow, Abraham Harold. (1970). Motivation and Personality. New York, NY: Harper Maslow, Abraham Harold. (1968). Toward a Psychology of Being, (2nd Ed.). Princeton, NJ: Van Nostrand/Insight Books Mathes, Eugene W. (1981) Maslow‘s Hierarchy of Needs as a Guide For Living. Journal of Humanistic Psychology, 21(4), 69-72. DOI: 10.1177/002216788102100406 Retrieved from: http://jhp.sagepub.com/cgi/reprint/21/4/69 Daft, Richard L. (2008). The Leadership Experience. Mason, Ohio: Thomson South-Western Research Papers on Maslow's Hierarchy of NeedsThree Concepts of PsychodynamicGenetic Engineering19 Century Society: A Deeply Divided EraInfluences of Socio-Economic Status of Married MalesThe Relationship Between Delinquency and Drug UseHip-Hop is ArtBionic Assembly System: A New Concept of SelfQuebec and CanadaThe Project Managment Office SystemStandardized Testing

Why Evolution Is True Term Paper Example | Topics and Well Written Essays - 2500 words

Why Evolution Is True - Term Paper Example The initial chapter of this book reveals how Coyne critically defines each keyword essential in the evolutionary theory. A fascinating finding is the author simply defines evolution as change over time. This approach is diverse from the manner other writers have given different meanings to the term ‘evolution. Looking at several articles, various writers have defined evolution as change in allele frequency over time, sufficiency of neo-Darwinian mechanism i.e. mutation, drift, and selection, and the universal common ancestry. With the way Coyne has explained the term ‘evolution, readers can understand clearly the term, this is in contrast to the manner other writers who have tackled the evolution have confused readers. This does not mean that the author disputes the fact that allele frequency change over a given time frame, in addition,, he does not disagree on the concept of natural selection in the evolution process. According to my own understanding, Coyne has embraced the concept of common ancestry, thus this out-rules any controversial issue (Coyne, 2009). In this chapter, the key points revolve around the truth of gradualism and natural selection, as well as mutations to account for the diversity in life. In this chapter, Coyne goes on to defend common ancestry as a foundation of evolution. This chapter deals with fossil evidence as a component of common ancestry. In the initial part of this chapter, the author outlines the process of fossilization. He also provides an introduction to radioisotope dating techniques; useful in approximating the time of life of rocks. The author goes on to say that fossil data simply shows a trend of simpler living beings preceding more complex ones. This is a perfect evidence of common ancestry (Coyne, 2009). This chapter covers three evolutionary transitions that were documented by the fossil record. They are the evolution of

The First Emperor of China, Qin Shi Huangdi's leadership skills, main Research Paper

The First Emperor of China, Qin Shi Huangdi's leadership skills, main achievements and main accomplishments - Research Paper Example It was protected from adjacent states and barbarian tribes with natural barriers. Therefore this region became one of the earliest centers of iron metallurgy in ancient China. Trade with northern neighbors and states of Central Asia and agriculture were basic branches of economy. Before 500BC state of Qin did not take an active part in an internecine struggle of Chinese kingdoms and was considered relatively weak. Strong, persistent leaders and gifted commanders were required to use current potential in full scope. Shang Yang (390BC - 338BC) and Han Fei (280BC – 233BC), who had been statesmen at the end of the Warring States period, strengthened position of Qin among its competitors. Both of them were â€Å"credited with fostering Qin’s growth and categorized somewhat loosely as ‘Legalists’. They both had visited other kingdoms; and both met a violent death thanks to animosities.† (Loewe 12 - 18) As a leader and reformer Shang Yang could be compared with Qin Shi Huangdi, because they strived for building military-bureaucratic state. Both of them rejected principles of Confucianism such as hierarchy, patriarchal concept of power, family clans etc. According to Shang Yang, idleness and lack of discipline are the main reasons of state decline. Lack of governmental control over them causes economic and agricultural recession. Reforms of Yang and Huangdi weakened positions of patrimonial aristocracy as the ruling class, because preliminary they had exclusively comprised officialdom. â€Å"The situation changed when Shi Huang Di successfully unified China under Qin in 221 B.C. with Li Si as his chancellor, by using effective military forces formed by Shang Yang’s reforms. After unification, the emperor decided to abolish feudalism and adopt Junxianzhi, a centralized system in which all the regions are governed by aristocrats appointed by the emperor, rather than as an indi vidual

Film analysis Essay Example | Topics and Well Written Essays - 2000 words

Film analysis - Essay Example Analysis A group theory was put forth by Schutz (1958). He looked at three dimensions of groups. The first dimension is the in-out dimension, or inclusion, and this is where the people in the group are either in the group or out of the group. The second dimension is the up-down dimension, or control, and this looks at the members of the group according to how dominant, or submissive, they are to one another. The third dimension is the close-far dimension, or affection, and this how tight the link is between the individual members (Schutz, 1958). This is the basis for examining the film, by examining how the relationships between the members of the group fit the above definitions, and how the relationships were fluid, in that the dynamics constantly changed and the how the group was defined, according to these three dimensions, changed along with it. The first dimension is the in-out dimension, and this states that some people are members of a group, while others are not. In the begin ning, there was not a group, per se, but a bunch of individuals who were thrown together on a Saturday, most against their will. However, that said, there was a bonding between the two popular kids, Andrew and Claire. They were the only two who knew one another, so, if there was the possibility of having a group that consisted of only two members, then Andrew and Claire were part of a group and everybody else was not. The film implied that the two ran in the same circle in school, as, at one point, Andrew asked Claire if she were going to a certain party. So, then, in the beginning, the â€Å"in† kids were Andrew and Claire, and the â€Å"out† kids were everybody else. This gradually changed. The first indication that maybe the kids were becoming a group was when Bender took the screw out of the door that was to remain open, and the principle came in to ask who did it. The entire group stated that they did not know who did it. This was the beginning of the formation of the group, because it was the beginning of group cohesiveness, and the beginning of the â€Å"us versus them† mentality that permeated throughout the film. This was a kind of theme in the film – that the kids, no matter how different they were from one another, still formed a cohesive whole when it came to authority, and would still cover for one another, no matter how they felt about the individual members of the group. The second major time that the kids became a group, in that all were a part of the group, and there was nobody outside the group, was when they went out into the hall to go to Bender’s locker. This was obviously something that could have gotten all of them into trouble, and Andy, at least, was not in a position to serve another Saturday detention, due to the fact that he had a meet on the following Saturday, so, at least for Andy, going out into the hall was a major risk. Presumably the other kids, with the exception of Allison, who wanted to b e there, and Bender, who had a series of other Saturday detentions lined up anyhow, also were taking a huge risk of getting another Saturday detention. Yet the kids all risked this by going out into the hall with Bender, despite the fact that none of them were needed for the task. That they all chose to do this shows that the kids were members of a group, because it shows that they were going to stick together. The going out into th

Heating Ventilation And Air Conditioning

Heating Ventilation And Air Conditioning Heating, ventilation and air conditioning (HVAC) constitutes up to 35 percent of energy used in manufacturing facilities. HVAC stands for heating, ventilation and air conditioning and refers to the equipment, distribution network and terminals used either collectively or individually to provide fresh filtered air, heating, cooling and humidity control in a building. A facility can have any combination of heating and cooling sources to supply the HVAC system. For heating a facility, a gas-or oil-fired boiler or furnace, heat pump, rooftop unit, new technology such as infrared radiation, or electric heat could be employed. Common cooling sources include rooftop units, chillers, heat pumps, air conditioner or some sort of off-peak cooling system. The Basic HVAC Design HVAC systems can vary in design and complexity. Air is taken through an outdoor air intake that is usually a louvered opening on the top or side of the building. Atmospheric pressure pushes the air through a damper, which regulates the amount of outdoor air (OA) taken in by the system. At this point, already conditioned return air (RA) from the system can be mixed with the outdoor air to form mixed air. The mixed air goes through pre-filter where larger dust particles; insects, leaves, etc. are caught. A more efficient filter is usually present to address small particles. After the filters, the air enters a centrifugal fan. Once exiting the fan outlet, the air is under positive pressure and being Pushed towards coils where the air is either heated or cooled, depending on the temperature of the air and the season. Under the coils lies a drain pan to collect any water condensing on the coils. If a humidifier or dehumidifier is needed it is usually incorporated into the cycle at this point. The air travels through ductwork where it reaches a distribution box and may travel through smaller ducts to supply the terminals, registers or diffusers into the workspace. Once the air reaches its destination, it is returned through an air register (usually through a louvered door that opens into a space above the ceiling tiles) in the form of return air that will become mixed air or exit the building. Air Conditioning Air conditioning is treating air for temperature, cleanliness and humidity, and directing its distribution to meet requirements of a conditioned space. Comfort air conditioning is when the primary function of the system is to provide comfort to occupants of the conditioned space. The term industrial air conditioning is used when the primary function is other than comfort. There are three basic types of air conditioners: à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ Direct expansion coolers include window air conditioners, heat pumps and packaged or rooftop units. Air is cooled and dehumidified as it moves past a cold, refrigerant-filled coil. à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ Chilled water systems use water cooled by a refrigeration machine instead of air. This cool water supplies a coil, which cools and dehumidifies the air. à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ Evaporative (or swamp) coolers are usually only appropriate in hot, dry climates and bring hot air in contact with a water spray or damp surface. The result is evaporation of moisture, which lowers the temperature of the air. What is Ventilation Ventilation is a process that either supplies or removes air from a space by natural or mechanical means. All air that is exhausted from a building must be replaced by outside air. Outside air must be brought to a certain temperature by makeup air units used throughout the building. Negative building pressure can be a problem during winter heating season and could lead to a number of other problems such as difficulty in opening doors and equipment operation. Air seeps through gaps around windows, doors and ducts. While designing HVAC systems for energy efficiency-cy, it is also good to take into account the design for human comfort. Good working conditions increase productivity and employee satisfaction. The HVAC design should incorporate: à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ a determination of indoor conditions and how energy use is affected; à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ the impact on equipment selection, ducting and register design; and à ´Ã¢â€š ¬Ã¢â‚¬Å¡Ã†â€™ determination whether certain conditions will be acceptable for comfort criterion. Heating, Ventilation and Air-Conditioning (HVAC) Systems The main purposes of a Heating, Ventilation, and Air-Conditioning (HVAC) system are to help maintain good indoor air quality through adequate ventilation with filtration and provide thermal comfort. The choice and design of the HVAC system can also affect many other high performance goals, including water consumption (water cooled air conditioning equipment) and acoustics. Codes and Standards Many state codes also specify minimum energy efficiency requirements, ventilation controls, pipe and duct insulation and sealing, and system sizing, among other factors. In addition, some states and localities have established ventilation and other indoor air quality related requirements that must also be followed. Design in accordance with ASHRAE standards Design systems to provide outdoor air ventilation in accord with ASHRAE Standard 62.1-2007 and thermal comfort in accord with ASHRAE Standard 55-1992 (with 1995 Addenda) Thermal Environmental Conditions for Human Occupancy Ensure familiarity with, and adherence to, all state and local building codes and standards. Potential for Natural Ventilation and Operable Windows In some parts of the country, where temperature and humidity levels permit, natural ventilation through operable windows can be an effective and energy-efficient way to supplement HVAC systems to provide outside air ventilation, cooling, and thermal comfort when conditions permit (e.g., temperature, humidity, outdoor air pollution levels, precipitation). Windows that open and close can enhance occupants sense of well-being and feeling of control over their environment. They can also provide supplemental exhaust ventilation during renovation activities that may introduce pollutants into the space. However, sealed buildings with appropriately designed and operated HVAC systems can often provide better indoor air quality than a building with operable windows. Uncontrolled ventilation with outdoor air can allow outdoor air contaminants to bypass filters, potentially disrupt the balance of the mechanical ventilation equipment, and permit the introduction of excess moisture if access is not controlled. Strategies using natural ventilation include wind driven cross-ventilation and stack ventilation that employs the difference in air densities to provide air movement across a space. Both types of natural ventilation require careful engineering to ensure convective flows. The proper sizing and placement of openings is critical and the flow of air from entry to exit must not be obstructed (e.g., by closed perimeter rooms). Designers should consider the use of natural ventilation and operable windows to supplement mechanical ventilation. Consider outdoor sources of pollutants (including building exhausts and vehicle traffic) and noise when determining if and where to provide operable windows. If operable windows will be used to supplement the HVAC system, ensure that: openings for outdoor air are located between 3-6 feet from the floor (head height); the windows are adjustable and can close tightly and securely; the windows are placed to take maximum advantage of wind direction, with openings on opposite sides of the building to maximize cross-ventilation. Selection of HVAC Equipment In most parts of the country, climatic conditions require that outdoor air must be heated and cooled to provide acceptable thermal comfort for building occupants, requiring the addition of HVAC systems. The selection of equipment for heating, cooling and ventilating the school building is a complex design decision that must balance a great many factors, including heating and cooling needs, energy efficiency, humidity control, potential for natural ventilation, adherence to codes and standards, outdoor air quantity and quality, indoor air quality, and cost. Where feasible, use central HVAC air handling units (AHUs) that serve multiple rooms in lieu of unit ventilators or individual heat pumps. Although there are many different types of air handling units, for general IAQ implications in schools, air handling units can be divided into two groups: unit ventilators and individual heat pump units that serve a single room without ducts; and central air handling units that serve several rooms via duct work. Unit ventilators and heat pumps have the advantage of reduced floor space requirements, and they do not recirculate air between rooms. However, it is more difficult to assure proper maintenance of multiple units over time, and they present additional opportunities for moisture problems through the wall penetration and from drain pan and discharge problems. Central air handling units have a number of advantages as compared to unit ventilators and heat pumps serving individual rooms. Features for air handling units: Double-sloped drain pan and drain trap depth Double-sloped drain pan A double-sloped pan prevents water from standing and stagnating in the pan. Non-corroding drain pan Made from stainless steel or plastic. Prevents corrosion that would cause water to leak inside the AHU. Easy access doors All access doors are hinged and use quick release latches that do not require tools to open. Easy access to filters, drain pans, and cooling coils is imperative. Double wall cabinet The inner wall protects the insulation from moisture and mechanical damage, increases sound dampening, and is easier to clean. Tightly sealed cabinet Small yet continuous air leaks in and out of the AHU cabinet can affect IAQ and energy. The greatest pressure differentials driving leaks occur at the AHU. Double wall doors with gaskets Double wall doors provide better thermal and acoustic insulation, and will remain flatter, allowing a better seal against door frame gaskets Minimum 2 inch thick filter slots For better protection of the indoor environment, as well as the equipment and ducts, the filters slots should be able to accommodate 2 in. or thicker filters. Extended surface area filter bank To reduce the frequency of filter maintenance and the cost of fan energy, the bank is designed to allow more filter area, such as the deep V approach or bags. Air filter assemblies (racks housings) designed for minimum leakage The filter bank should have gaskets and sealants at all points where air could easily bypass the air filters, such as between the filter rack and the access door. Use properly gasketed manufacturer supplied filter rack spacers. Air filter monitor A differential pressure gauge to indicate the static pressure drop across the filter bank. This feature could easily be installed as an option in the field. Corrosion resistant dampers links All moving parts such as pivot pins, damper actuators, and linkages are able to withstand weather and moisture-induced corrosion for the full life of the system Location of Outdoor Air Intakes and Exhaust Sloped Intake Plenum and Accessible Intake Screen Proper location of outdoor air intakes can minimize the blockage of airflow and intake of contaminated air. The bottom of air intakes should be at least 8 inches above horizontal surfaces (generally the ground or the roof) to prevent blockage from leaves or snow. In northern locations, more separation may be needed due to greater snow depths or drifting snow. Intakes should not be placed within 25 feet of any potential sources of air contaminants, including sewer vents, exhaust air from the building, loading docks, loading areas, garbage receptacles, boiler or generator exhausts, and mist from cooling towers. If the source is large or contains strong contaminants, or if there is a dominant wind direction in the area, the minimum separation distance may need to be increased. Air admittance valves, an inexpensive and code-approved one-way air valve, can be added to sewer vents to eliminate the potential for release of gases into the surrounding air. Grilles protecting air intakes should be bird- and rodent-proofed to prevent perching, roosting, and nesting. Waste from birds and other pests (e.g., rats) can disrupt proper operation of the HVAC system, promote microbial growth and cause human disease. The use of outdoor air intake grilles with vertical louvers, as opposed to horizontal louvers, will reduce the potential for roosting. Intake Screens must be accessible for inspection and cleaning. In existing buildings, an insufficient amount of ventilation air is often the result of clogged intake screens that are inaccessible for inspection and cleaning. Screens hidden by an intake grille should be designed with a grille that is easily opened, such as a hinged grille with two quick-release latches, or in the worst case, a grille with four one-quarter turn fasteners. All screens should be easily removable for cleaning. Consider adding a section of sloped intake plenum that causes moisture to flow to the outside or to a drain if intake grilles are not designed to completely eliminate the intake of rain or snow. Air Distribution and Duct Insulation Dirt and moisture should not be present in duct systems, and must be controlled to prevent mold growth. However, it is not always possible to assure that ducts remain dirt and moisture free. In many existing buildings, sheet metal ducts, as well as those constructed of or lined with insulation products, are often contaminated with mold because dirt and moisture found their way into the system. Duct board and duct liner are widely used in duct systems because of their excellent acoustic, thermal, and condensation control properties. If the HVAC system is properly designed, fabricated, installed, operated and maintained, these duct systems pose no greater risk of mold growth than duct systems made of sheet metal or any other materials. However, the very properties that make duct board and duct liner superior insulators (e.g., a fibrous structure with large surface area that creates insulating air pockets), also makes them capable of trapping and retaining moisture if they do get wet (though the fibers themselves do not absorb moisture). While there is an ongoing debate about the wisdom of using insulation materials in duct systems that might retain moisture longer, all sides agree that extraordinary attention to preventing moisture contamination of the duct work should be the primary strategy for preventing mold growth. As a secondary strategy, designers should consider methods of reducing the potential for future problems to occur due to unforeseen moisture contamination by investigating insulation products now on the market that minimize the potential for moisture to penetrate the insulation material. These include foil vapor retarders, tightly bonded non-woven vapor retarders, butt or shiplap edges, and other techniques that have been developed by insulation manufacturers to address concerns about moisture. http://www.epa.gov/iaq/schooldesign/hvac.html Water supply Water has the unfortunate quality of being heavier than air. it weighs 62.4 pounds per cubic foot. This mass requires a pressure of 0.433 psi to lift water one foot (62.4 lbs/144 in in ft). To put it another way, one psi will lift water 2.31 feet (1/0.433). In a single story building with 70 psi in the street, this can be insignificant. In a high-rise building, this factor will drive the design of both the hot and cold water systems. First, high and low pressures need to be determined. Plumbing codes usually limit the high water pressure to 80 psi. Using 70 psi will result in more manageable flow rates at the fixtures, reduced water hammer and lower velocities. These characteristics will result in lower operating costs and a longer life of the system. Codes often limit the low water pressure to 20 psi, unless there are fixtures such as flush valves that require greater pressures. Nevertheless, a minimum pressure of 40 psi is recommended for the comfort of the end users. With a pressure differential of 30 psi, a zone can be no more than 69 feet in height (30 ft x2.31 ft/psi). Using a typical floor to floor height, for a hotel, of 11 feet, no more than six floors can be served by a single zone. The next step is to determine the system pressure. The suction pressure can be determined by adding the street pressure and the elevation gain (assuming your booster pump is in the basement). Adding the anticipated losses including friction, elevation and PRV falloff to the minimum pressure results in the system pressure. Subtracting this from the street pressure yields the boost pressure. The manufacturer will also need to account for internal losses in the booster pump system. Booster pumps today can be configured in any number of ways. With advancements in pumping technology, vented roof tanks are a thing of the past. A constant speed pump, carefully calculated, could operate without PRVs. If so, PRVs might be required at the top floor, and shutoff head must be checked. Shutoff head is the system pressure resulting from the demand approaching zero. It can be determined by adding the suction pressure to the pressure indicated on the far left end of the pump curve. In some cases, this pressure can exceed the capacity of the piping system. If PRVs are provided on the pump discharge, problems with shutoff head can be eliminated outside of the booster pump package but must still be checked within the package. A better solution is a variable speed booster pump. By tracking pressure, flow or electrical current, a variable speed booster pump can deliver constant pressure at any flow rate. This provides a more predictable system pressure and saves electricity at t he same time. Regardless of pump type, the lower zones in a high rise will need PRVs. In most cases, for economical reasons, direct acting PRVs are used. A more consistent pressure can be maintained by using two valves piped in parallel (figure 1). The smaller valve may be sized to handle 1/3 of the flow rate at an acceptable falloff pressure. The larger valve is then sized for 2/3 of the flow rate at the same falloff pressure. If the smaller valve is set for 75 psi and the larger valve is set for 70 psi, then under low flow the larger valve will be closed and the smaller, more accurate valve will regulate the pressure. A relief valve is required downstream of the PRVs and will require an indirect waste receptor, which is often overlooked in the design of these stations. In many cases, the lowest of all zones may not require a boost in pressure. If so, a separate branch in the main, prior to the booster pump, could serve several lower floors, saving installation and utility costs. The maximum number of floors that can be served depends on the materials used. The booster pump, valves, piping and appurtenances must all be capable of handling the maximum pressure at the base of the riser. Understanding pressure ratings can get quite involved. Bronze, threaded, class 150 valves are limited to 200 psi at 150 F, while the more expensive class 200 valves are limited to 400 psi. Iron, class 125 valves up to 12 in size are also limited to 200 psi at 150 F, while the more expensive class 250 valves are limited to 500 psi. The correct valves must be specified in the booster pump package and in the piping system, at least for the lower floors. At higher floors, the pressure falls; good practice is to reduce the class of valves when a safe working pressure has been reached. Pressure gauges and other small devices are often overlooked, along with, surprisingly, the piping. The maximum safe working pressure of 6 hard drawn copper tube at 150 F is 376 psi, and the maximum gauge working pressure of the solder joint (assuming 95-5 tin-antimony solder) is 375 psi, but the rated internal working pressure of the fitting is only 213 psi. As such, serving more than 40 floors can be difficult at best. One solution, to add a few more floors, is to use stainless steel pipe. The typical joint working pressure of schedule 10S can be 300 psi and schedule 40S can be 600 psi depending on the couplings used. When serving even taller high rise buildings, a secondary pumping station must be used (figure 2). In this scenario, a lower pump serves the bottom half of the building and also feeds the suction side of the higher pump, which in turn serves the top half of the building. Particular attention must be given to the simultaneous control of these pump sets; a buffer tank may be necessary to maintain a constant suction pressure at the higher tank Alternatively, two lower pumps can be provided, one for the lower fixtures and one to feed the higher pump. This separation of the upper and lower building systems will allow for more independent control over pressures and can be useful for maintenance. In most high rises, the water is pumped up to the PRV stations that are located at the top of the zones. The downstream risers and branch piping then downfeed to the fixtures. This decision, however, can be affected by the type of fixtures and the location of the hot water heater. In an upfeed system, the pressure loss due to friction and the pressure loss due to elevation are additive; the worst case is the top of the system where the pressure is lowest. In a downfeed system, at least for smaller pipe sizes, the friction pressure loss will be somewhat offset by the pressure gain from downfeeding. Also, since the friction loss is greatest at the bottom of the system where the pressure is greatest, smaller branch pipes can be utilized. The result is a more consistent static and dynamic pressure, providing a better experience for the end user. An economic analysis often reveals that the cost of the express riser, the upfeed pipe that has no connections, is less than the savings from the smaller branch piping. It is strongly recommended that the hot and cold water in any building feed in the same direction. Otherwise, the cold water friction losses may be at a minimum where the hot water friction losses are at a maximum. Even with pressure balancing shower valves, a differential pressure of 50% could have disastrous results. If the water heater is on the roof, a downfeed system makes good sense. The design of hot water systems is outside of the scope of this article. Engineers often return this hot water to the central water heater. Doing so can create a system that is very difficult to balance. Even when each zone is protected by a check valve, the pressure from the higher zone will often prevent the lower zones from circulating at all. A better approach is to circulate within each zone (figure 3). A fractional horsepower pump and a small electric tank type heater work well. Five gallons and three to nine kilowatts will handle six floors of almost any footprint since the water is only reheating from 110 F to 120 F. Since the pressure is already reduced, the circulating pump and reheat tank can be placed on any floor. Dont forget about the main hot water riser. It must still be circulated back to the central system to ensure that this large column of water does not get cold overnight. One final issue to consider in both hot and cold water distribution is the ability to purge air from the system. There are manual air vents the best way to purge air from the system is simply to provide horizontal distribution on the floor below the highest floor in each zone. This allows the air to collect in each riser and float to the top, where it is purged every time that a fixture on the top floor is used. This is rarely noticed by the end user unless the fixture is seldom used. http://www.plumbingengineer.com/june_08/highrise_feature.php Drainage Pressure control on the drainage side presents other challenges. water is essentially the same in either system; however, drainage theory holds that considerable air travels downward with the water flow. This theory asserts that water flowing in a vertical pipe tends to adhere to the pipes walls, acting very much like a sleeve of water with a hollow core of air, all sliding down the pipes walls until it reaches a ratio of approximately 6/24 full of the pipe cross-sectional area. This watery sleeve travels at almost 15 feet per second (fps), propelled by gravity but restricted by friction. When the piping remains vertical, the entrained air is relatively simple to control, but when piping offsets from the vertical, the fluid flow velocity drops considerably, filling the entire pipe diameter. Horizontal, sloped drainage piping should flow in the 4-8 fps range, so it is easy to see that a large slug of water can quickly develop. This can lead to compressing air in the path of the fluid and/or lowering air pressure on the leaving side of the fluid flow. The impact of these fluid and air fluctuations can be controlled by effective use of yoke vents, relief vents, and vent connections at the bases of stacks. the solutions are largely not unique and have been used successfully on many intermediate-height and even extremely tall high-rise buildings. A related concern is the impact of the hydraulic jump on the piping itself. The mass of water and the rapid change of velocity from vertical to horizontal cause this jump. While the pressure associated with this jump is significant, it does not destroy the fitting at the base of the stack. Rather, the movement of the pipe stresses the frictional forces that hold the joint to the pipe, leading to eventual coupling failure. Good design must compensate for the strong thrust that occurs at this change of direction. Successful methods include increasing the horizontal drain size and/or slope, using thrust blocks, or using restraining joints with threaded rod or similar arrangements that mechanically anchor the fitting to the entering and leaving piping. Once the water is raised and used, it is discharged to a drainage system that includes an attendant venting system, which is responsible for the flow of air in the drainage piping network. Air is critical to the drainage process because drainage flow is caused by sloping pipes, and the motive force is gravity. Absent air, the drainage would range from erratic to nonexistent. When the water in a pipe flows to a lower area, air must be added to replace the water, or a negative pressure zone will occur. If this zone is near a fixture, air will be drawn into the drainage system through the fixture trap with an easily identified gulping sound and very slow drain performance. This condition leads to poor performance throughout the drainage system and trap seal loss due to siphoning or blowout. The remedy for this condition is venting. At the individual fixture level, this consists of a fixture vent. As the number of fixtures increases, venting needs do as well, and a venting system evolves, with branch, circuit, and loop vents at the appropriate locations. When dealing with high-rise drainage stacks, a vent stack should be attendant, allowing for pressure equalization and re lief along the height and breadth of the system. Aside from relieving pressure in the drainage system, the vent system allows air to circulate in both directions in response to the fluctuating flow in the drainage system. In many high-rise vent designs, where stacks need to offset horizontally on a given floor, a relief vent is required. Although not often highlighted, the building venting system also serves to supplement the vent for the municipal sewer, relieving noxious or even hazardous gases and allowing the sewer to drain without pressure limitation. Fire Protection One area that should not be overlooked in any high-rise design is the fire protection systems. As a minimum, all high-rise buildings should have sprinkler systems on each floor and standpipe systems in each stairwell. These systems have proven themselves throughout the years to significantly save both life and property. The specific type, coverage density, and outlet placement all vary based on the building type, height, and location and local fire authorities. All high-rise buildings containing fire protection systems have large, dedicated fire pumps to provide the flows and pressures required for the individual system. While not always tasked with these system designs, plumbing engineers need to know that these systems are an integral part of the building and must account for their presence regarding equipment space, riser locations, and ceiling cavities. Wet systems in commercial spaces must be designed as a minimum to criteria for Light Hazard (0.10 gpm/sq. ft. over the remote 1,500 sq. ft. of floor area). Sprinkler piping on floors up to the 2nd floor shall be sized for street pressure only. Standpipe systems shall be provided .In particular: a. The standpipe risers shall be interconnected and have isolation valve for each standpipe. b. Two four-way fire department connections shall be provided on separate streets, piped to separate standpipe risers. c. At least one fire department connection shall be piped to the standpipe side of an isolation valve. d. FDCs must be located at an approved location. e. A Fire hydrant must be located within 50ft of the FDC g. Roof and floor remote areas must be within 200 feet of hose travel distance from a protected standpipe hose connection. Standpipe risers shall be combination standpipe/sprinkler risers using a minimum pipe size of 6 inch. One 2-1/2 inch hose connection shall be provided on every intermediate floor level landing in every required stairway and elsewhere as required. Two separate water supplies are required for the sprinkler/standpipe system. One must be a permanent City water main connection and the second must be a dedicated reservoir. http://www.newcomb-boyd.com/pdf/high-rise%20article.pdf

The Canterbury Tales: Applying Chaucers Criticism to Modern Society :: Sociology

The Canterbury Tales: Applying Chaucer's Criticism to Modern Society It is not hard to apply Chaucer's description of the greedy doctor to today's medical system, nor is it difficult to find modern-day people with equivalent personalities to those of many of Chaucer's other characters. However, it is the institutions of his time as well as their flaws and hypocrisies that Chaucer is most critical of; he uses the personalities of his characters primarily to highlight those flaws. The two institutions that he is most critical of have lost much, if not all, of their influence; in many instances, the Church has only slight hold on the lives and attitudes of the people as a whole, and the strict feudal system has entirely disappeared. Few institutions today are as clearly visible and universally influential as those two forces were in the Middle Ages, so, if Chaucer were writing his tales today, he would most likely turn to the hypocritical attitudes of the general populace and the idiosyncracies of our daily lives. He gives some emphasis to these in the Tales (for example, he mentions the prioress's ladylike compassion for even the smallest creature in the Prologue, but has her tell an anti-Semitic tale later), but, in today's American culture, he would be most likely to criticize businessmen, middle-class parents, and the demand formust instantaneous gratification. One of the things Chaucer would be most likely to point out about many big- businessmen would be the hypocrisy of their supposed love of sports. To truly love sports implies a similar love of sportsmanship, fairness, and equality competition. In a marketplace where one technology company takes another's product, reverse-engineers it (to avoid infringing on copyrights and patents), then sells it as its own, where is the sportsmanship? When that second company is already larger and has wider market contacts and greater marketing budgets, there is also no fairness. As for equality in the workplace and job-market, with age, gender and racial discrimination, that is difficult to find, too. The reason Chaucer would criticize the businessmen on the top as well as the institution itself would be because, since they are in positions of power, they can change things. Some try to; others more often don't. Another case is that of the middle-class parent who protests the deterioration of school standards, decries the loss of national morals, and ironically neglects his or her own child.

Web Content Management Systems

Templates: Standard output templates can be created and applied to change the design of the entire web page can be changed centrally. Access Control: Some of the web content management systems allow the content manager to manage access rights to certain groups or users, 0 0 Access rights can be provided or certain pages can be blocked for specific user groups Access right can also be managed to allow or block access for ‘logged on' or ‘anonymous users' Scalable Expansion: WOWS' provide the capability to expand a single implementation (one installation on one server) to various domains.Work flow management: Workflow is the process of creating cycles of sequential and parallel tasks that must be accomplished in the SMS. For example, one or many content creators can submit a story, but it is not published until the copy editor clearness it up and the editor-in-chief approves it. Collaboration: WOWS allows many people to collaborate on a single web page. Many authorized conte nt writers can work on one document or web page simultaneously, these changes can be authorized to make them permanent or denied to revert to the original document.Document management: SMS software may provide a meaner of collaboratively managing the life cycle of a document from initial creation time, through revisions, publication, archive, and document destruction. Content fertilization: SMS software may provide a meaner of allowing each user to work within a virtual copy of the entire web site, document set, and/or code base.This enables changes to multiple interdependent resources to be viewed and/or executed in-context prior to Content syndication: Content management systems help in content distribution by he likes of IRS feeds, emails can also be sent out to registered users in case the content is updated. Multilingual support: The content can be displayed in multiple languages. Versioning: Like many document management system, versioning can be done on the web content as wel l.Authorized content editors can pick up writing from a point in the article already published. This feature is very useful in contents that require regular updating. Types of content management systems There are three types of content management systems: 0 0 0 Online SMS Offline SMS Hybrid SMS Online SMS: The online content management systems are capable of displaying content on demand when a user visits the web page. E. G. A certain template can be applied to the weapon from the web cache when a user is visiting the web page.Offline SMS: These are sometimes referred to as â€Å"static-site generators†, here instead of displaying the content on-demand, the content processing is done before publishing. Since pre-processing tools don't require a server to display content on- demand. Offline SMS can also exist purely as a design time tool. Hybrid SMS: These intent management systems write executable content, in which SMS itself doesn't have to be deployed on a server but server similar functionality of the online SMS.Most popular content management systems 0 0 0 0 0 Wordless Joana Mood Text pattern Refinery SMS Drupes Concrete 5 Donned nuke Embrace Tiny SMS Advantages of SMS Cost effective With a content management system, a web page can be maintained for a fraction of a price of hiring a web developer. Easy customization The web page can be easily customized without coding. Most WOWS provide a GUI using which the intent can be customized using user friendly features such as ‘drag and drop'.SEE friendly Websites managed by WOWS are more Search Engine friendly for the following reasons; 0 0 0 Regularly updated content- Some search engines give preference to regularly updated content while displaying the results. URL rewriting can be implemented easily which produces clean URL without parameters. Auto generated IRS feeds increase the number of subscribers to the website. Disadvantages of SMS Latency issues Larger Cams can experience latency if hardwar e infrastructure is not up to date, if loaded every time data is updated grow large.Load balancing issues may also impair caching files. (1) Tool mixing Because the URL of many Cams are dynamically generated with internal parameters and reference information, they are often not stable enough for static pages and other web tools, particularly search engines, to rely on them. (1) Managerial Implications of Implementing a SMS In today's business scenario, where having an e-presence is no longer a differentiating factor but a necessity, where profit margins are wafer thin.WOWS' can lay a crucial role of meeting both goals of having an e-presence at the same time keeping the costs related to maintaining a website in check. With a WOWS except for the implementing costs the rest of the functioning is relatively cost free, as any ‘non- technical' person with little or no training can maintain content using a SMS. WOWS' allows for frequent updating of content, which would help keep the content fresh and help in SEE. References 0 0 http://en. Wisped. Org/wick/content_management_system http:// www. Masseuses. Com/tag/l (I-popular-content-management-systems-online/

How to Write a Fight Scene 5 Simple Steps To Action-Filled Fights

How to Write a Fight Scene 5 Simple Steps To Action-Filled Fights How to Write a Fight Scene When tensions are high, honor is questioned, and lives may even be at stake, you know what time it is: time for a killer showdown. You’ve been building toward this explosive moment for pages, maybe your entire book, but now you come to a screeching halt - you have no idea how to write a fight scene!Fortunately, it’s not as complicated as you might think. Follow these 5 simple steps to write a fight scene that releases story tension, solves inter-character conflict, and satisfies the anxious expectations of your reader all at once. How to create a breath-stealing fight scene in just 5 steps Step 1. Motivate your playersWhen was the last time you saw someone start throwing punches out of nowhere? Probably never. Whether it’s over a lifelong grudge or a few heated words at a bar, people need believable motivation to start a fight in both real life and in fiction.Here are a few ideas to motivate your characters’ confrontations. Whichever you choose, use it as the catalyst for your fight scene, as well as to add the necessary layers of depth and complexity.SurvivalSurvival is an important motivation for any character, but especially for protagonists in horror and dystopian novels. For instance, Katniss in The Hunger Games has no choice but to attack and kill her fellow adolescent opponents if she wants to survive. However, this need to survive can escalate any physical fight, such as the gang rumbles in The Outsiders, where someone could pull out a knife at any moment. Just remember: for survival to be a credible character motivation, the situation has to be a bsolutely dire. Have you ever written a fight scene before? How did you do it? Comment below to add your own unique tips!

Pluto essays

Hades/Pluto essays Hades, in Greek mythology is the god of the Underworld and the ruler of the dead. He is also known as Pluto, the god of wealth. He is the brother of Zeus and Poseidon, and therefore considered the first generation of Olympian gods. However, he was not considered an Olympian god. He was considered a Chthonian (from the Greek word chthon, meaning earth). The Chthonian gods inhabited the opposite realm from the Olympians (Zeus, Hera, Aphrodite, etc) and were considered to be darker and gloomier characters. According to myth, the three sons of Kronos and Rhea - Zeus, Poseidon, and Hades - each drew lots to determine which part of the world they would rule. Zeus and Poseidon received the sky and the seas respectively, leaving Hades, who had the worst draw, with the Underworld. Hades was considered to be a greedy and unpitying god, which made him the most feared among man and the gods. He is the King of the dead but, death itself is another god, Thanatos. Hades ruled to realm of the dead alone. That is, until he became enamored with the goddess Persephone, the daughter of Demeter. Hades abducted Persephone from the upper world; Demeter then went about looking for her daughter all over the earth with torches every day and night, and during that time she did not allow the earth to produce any food for the mortals. When Demeter finally found out what happened, she ordered Hades to send back Persephone. However, before she left he gave her a pomegranate to eat. Not foreseeing the consequence, she swallowed it, binding her to the Underworld for all eternity. At Demeters arguments, Hades made a concession that since Persephone ate two pomegranate seeds; she would spend two seasons each in the upper and lower world. Demeters moods at Persephones arrival and departure is said to be why we have the seasons. Hades, although ruling alone, had various helpers in the Underworld. He was assisted by Thanatos, ...

The relationship between stock markets and economic development Essay

The relationship between stock markets and economic development - Essay Example Empirical studies do suggest that a well developed stock market can considerably support economic growth in the long run through faster capital accumulation, improved resources allocation and exploiting the prevalence of positive sentiment across the country. (Ahmed, Ali & Shahbaz, 2008) In 19th and 20th centuries, academicians such as Bagehot (1873) and Schumpeter (1911) had focused on contribution of financial sector to economy. The main function of money or capital in the initial years was to trade in credit for the purpose of financing development before the Great Depression. Gurley and Shaw (1955) were the first to study the relationship between financial markets and real activity. However, the direct relationship was not very clear until recently. Recent literature has paid much attention to banking reforms which directly affected both the stock markets and economic growth relationships. Levine (1997) suggested that liquid market spread can lead to stable and long term investments leading to economic growth through reduced transaction expenditure. While the conventional economists always believed that there was no direct relation between stock market growth and economic growth because of presence of level effect and not the rate effect. Many of them in fact be lieved that stock markets actually harm the economic growth due to its volatile nature, market flexibility due to unstructured and unexplainable sentiments and generally no justification for sudden surge or fall in stock indexes leading to perceived gains and losses of millions of dollars in a fraction of a day. However, there has been considerable growth of stock market share in economic direction of a country. During late 90s over a period of a decade, the total value of world’s stock markets rose from $4.7 trillion to $15.2 trillion while capitalisation share jumped fro 4% to 13%. (Levine 1998). The figures have since seen exponential growth in the past decade too, with world economy growing

Business senerio Assignment Example | Topics and Well Written Essays - 500 words

Business senerio - Assignment Example The managerial staff at the firm must find alternative solutions to the problem as soon as possible. The morale problems the company faces have escalated into other human resource issues including a lack of communication, interpersonal conflicts, and physical confrontations. The situation has gotten so bad that the employees have stopped caring about their duties and their actions have reached external stakeholders. Recently an employee acted improperly dealing with a customer by yelling at the customer and acting unprofessionally. We have received several complaints from vendors of the company that have not received important paperwork concerning incoming shipments. The company is not suffering from any cash flow problems, but for some odd reason the finance department never pays the bills on time. The quality of the food at the cafeteria has reached an all time low. It seems as if the company is in the middle of chaos. Due to the negative impact that the morale problem is having on the entire organization the company has to take immediate steps to remedy the situation. The first step towards finding a solution is recognizing the existence of the problem to then take corrective actions. As managers we are responsible for the job performance of our subordinates. This matter cannot be delayed any longer because the low morale at the company is spreading like a virus. The majority of the departments at the firm are underperforming and the firm has become an unpleasant place to work. It is important for the company to take this matter seriously because low employee morale usually results in poor productivity and production. The firm has done a poor job at dealing with the situation so far and has let a simple issue turned into a problematic situation. The objective of the meeting is to allow the entire managerial staff to participate in the process of finding a solution to the morale problem. By the end of this meeting