Wednesday, August 26, 2020

Solar Energy Outline

Sunlight based Energy Outline: Abstract Recently, the sun powered vitality innovation advertise has encountered amazing development. Because of developing open consciousness of ecological issues, clean vitality research financing has expanded. This subsidizing increment has made emotional innovative enhancements. Contrasted and customary vitality, sun based vitality is demonstrating numerous wonderful favorable circumstances. In spite of its specialized and monetary impediments in the present, it is normal that sun oriented vitality will assume a significant job in the transportation segment later on. Watchwords: Solar vitality; Solar boards; Solar innovation; Solar force; Solar vitality policy.Background Knowledge of Solar Energy 1. Status of Solar Energy Technology 1. 1 Potential of Solar Energy 1. 2 Photovoltaics 1. 3 Solar Thermal warming and cooling 2. Improvement of Solar Energy Technologies 2. 1 History of Solar Energy Technologies 2. 2 Barriers in Solar Energy Utilization 3. Life Cycle Analysis of Solar and Non-Solar Energy 3. 1 Comparison for Centralized Power Generation Technologies 3. 2 Comparison for Distributed Power Generation Technologies 3. 3 Comparison of the LCOEs for Distributed and Central Station Renewable Energy Technologies 4. Strategy supporting Solar Energy Development (Solar Thermal Heating and Electric) 4. European countries’ Policy (Germany) 4. 2 United States 4. 3 Asian Developing Countries (China and India) 5. Carbon Finance Mechanisms and Solar Energy Development 5. 1 Clean Development Mechanisms 5. 2 Barriers in the CDM 5. 3 Improvement of the CDM 6. Sunlight based Energy Supply in Future 6. 1 Photovoltaics 6. 2 Solar Thermal Heating and Cooling 6. 3 Concentrating Solar Power (CSP) 7. End 7. 1 Advantage from Solar Energy 7. 2 Confines and Prospects References John Byrne, World Solar Energy Review: Technology, markets and Polices, Environment and Energy Unit, Development Research Group, The World BankAldo Steinfeld, Solar t hermochemical creation of hydrogenâ€â€a survey, 0038-092X/$ doi:10. 1016/j. solener. 2003. 12. 012, Solar Energy. Nathan S. Lewis, Powering the planet: Chemical difficulties in sunlight based vitality use, PNAS October 24, 2006 vol. 103 no. 43 15729â€15735 R. D. Schaller, High Efficiency Carrier Multiplication in PbSe Nanocrystals: Implications for Solar Energy Conversion, Physical Review Letters Volume 92 Number 18, May 2004 Solar Energy Industries Association. (2004). Our sun based force future: The US photovoltaics industry guide through 2030 and past. Brilliant, CO: National Renewable Energy Laboratory.

Saturday, August 22, 2020

Standardized testing Research Paper Example | Topics and Well Written Essays - 500 words

Government sanctioned testing - Research Paper Example The technique for state sanctioned testing is impartial and this is apparently its greatest ace. It doesn't segregate based on sex, race or religion. The normalized technique for testing functions admirably in indentifying the requirements of underperformers and the individuals who are succeeding. Explicit projects can be produced for underperformers to cause them to exceed expectations. It is a decent technique so as to accomplish capability. It can likewise help make progressively straightforward training framework. Being reasonable for every single understudy is significant and government sanctioned testing ends up being an exceptionally viable framework with regards to being reasonable for understudies. Government sanctioned testing is viewed as an uncalled for framework by many. This is on the grounds that it doesn't consider the distinctions in understudies and every single understudy is made a decision about utilizing similar rules. This is by all accounts uncalled for and out of line. It is imperative to think about the distinctions in every understudy. Not every person can be a monkey and achieve the overwhelming assignment of climbing trees. Appraisal and training are two significant points. State administered testing is a decent method of granting instruction however with regards to evaluation it bombs on a bigger number of bleeding edges than one. State administered testing has positively affected numerous understudies. They have made extraordinary progress scholastically as a result of this technique. It is additionally a truly dependable method of estimating the accomplishments of understudies. Simultaneously many believe this technique to be profoundly imperfect. â€Å"After No Child Left Behind (NCLB) went in 2002, the US slipped from eighteenth on the planet in math on the Program for International Student Assessment (PISA) to 31st spot in 2009, with a comparative drop in science and no change in reading.† (Walker, Tim) Government sanctioned testing is out of line to non-English speakers and there is not really any uncertainty about this statement.â

Friday, August 21, 2020

The Hawthorne Effect and Behavioral Studies

The Hawthorne Effect and Behavioral Studies Basics Print The Hawthorne Effect and Behavioral Studies By Kendra Cherry facebook twitter Kendra Cherry, MS, is an author, educational consultant, and speaker focused on helping students learn about psychology. Learn about our editorial policy Kendra Cherry Medically reviewed by Medically reviewed by Steven Gans, MD on August 15, 2017 Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Steven Gans, MD Updated on November 11, 2018 Nick David / Getty Images More in Psychology Basics Psychotherapy Student Resources History and Biographies Theories Phobias Emotions Sleep and Dreaming The  Hawthorne effect  is a term referring to the tendency of some people to work harder and perform better when they are participants in an experiment. The term is often used to suggest that individuals may change their behavior due to the attention they are receiving from researchers rather than because of any manipulation of independent variables. The Hawthorne effect has been widely discussed in psychology textbooks, particularly those devoted to industrial and organizational psychology. However, some of the more recent findings suggest that many of the original claims made about the effect may be overstated. A Brief History of the Hawthorne Effect The effect was first described in the 1950s by researcher Henry A. Landsberger during his analysis of experiments conducted during the 1920s and 1930s. The phenomenon is named after the location where the experiments took place, Western Electric’s Hawthorne Works electric company just outside of Hawthorne, Illinois. The electric company had commissioned research to determine if there was a relationship between productivity and work environments. The original purpose of the Hawthorne studies was to examine how different aspects of the work environment, such as lighting, the timing of breaks, and the length of the workday, had on worker productivity. In the most famous of the experiments, the focus of the study was to determine if increasing or decreasing the amount of light that workers received would have an effect on how productive workers were during their shifts. Employee productivity seemed to increase due to the changes but then decreased once the experiment was over. What the researchers in the original studies found was that almost any change to the experimental conditions led to increases in productivity. When illumination was decreased to the levels of candlelight, production increased. In other variations of the experiments, the production also improved when breaks were eliminated entirely and when the workday was lengthened. The results were surprising and the researchers concluded at the time that workers were actually responding to the increased attention from their supervisors. Researchers suggested that productivity increased due to attention and not because of changes in the experimental variables. Landsberger defined the Hawthorne effect as a short-term improvement in performance caused by observing workers. Researchers and managers quickly latched on to these findings, but later research has shown that these initial conclusions did not convey what really happening. The term Hawthorne effect remains widely in use to describe increases in productivity due to participate in a study, yet additional studies have often offered little support or have even failed to find the effect at all. More Recent Research on the Hawthorne Effect Later research into the Hawthorne effect has suggested that the original results may have been overstated. In 2009, researchers at the University of Chicago reanalyzed the original data and found that other factors also played a role in productivity and that the effect originally described was weak at best. Levitt and List uncovered the original data from the Hawthorne studies and found that many of the later reported claims about the findings are simply not supported by the data. They did find, however, more subtle displays of a possible Hawthorne effect. Some additional studies have failed to find strong evidence of the Hawthorne effect, and in many cases, other factors may also influence improvements in productivity. In situations involving worker productivity, increased attention from experimenters also resulted in increased performance feedback. This increased feedback might actually lead to an improvement in productivity. The novelty of having experimenters observing behavior might also play a role. This can lead to an initial increase in performance and productivity that may eventually level off as the experiment continues. Demand characteristics might also play a role in explaining this phenomenon. In experiments, researchers sometimes display subtle clues that let participants know what they are hoping to find. As a result, subjects will sometimes alter their behavior to help confirm the experimenter’s  hypothesis. While the Hawthorne effect has often been misrepresented and perhaps overused, Rogelberg notes that the term continues to be a useful general explanation for the impact of psychological phenomenon such as typical versus maximal performance, and socially desirable responding (i.e., faking good). So what can researchers do to minimize these types of effects in their experimental studies? One way to help eliminate or minimize demand characteristics and other potential sources of experimental bias is to utilize naturalistic observation techniques. However, it is also important to note that naturalistic observation is simply not always possible. Another way to combat this form of bias is to make the participants responses in an experiment completely anonymous or confidential. This way, participants may be less likely to alter their behavior as a result of taking part in an experiment. A Word From Verywell Many of the original findings of the Hawthorne studies have since been found to be either overstated or erroneous, but the term has become widely used in psychology, economics, business, and other areas. Despite this, the term is still often used to refer to changes in behavior that can result from taking part in an experiment.