Mechanisms of Heat Transfer Prepared by: Ms. Ana Antoniette C. Illahi 1 Conduction • conduction (or heat conduction) is the transfer of thermal energy between regions of matter due to a temperature gradient. Heat spontaneously flows from a region of higher temperature to a region of lower temperature‚ and reduces temperature differences over time‚ approaching thermal equilibrium. Prepared by: Ms. Ana Antoniette C. Illahi 2 (Heat Current in Conduction) • • • • • • • • H - Heat Current
Free Heat transfer Heat Temperature
The Effects of the Cold War on the Americas For nearly fifty years‚ the world lived in fear as two super-power nations quietly battled for power‚ respect and popularity of their respective political views. The Cold War arose out of the ashes of the failed alliance between the United States and the Soviet Union in World War II. Many different factors could be linked to the actual cause of the Cold War‚ however many agree that the political future of Eastern Europe was the major spark that ignited
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microstructures in a welded mild steel joint. Results Overview of 5 different microstructures in welded steel Detail microstructures of 5 different zones Discussion and analysis of results * The heat affected zone is a composition of parent metal which was heated to a high enough temperature for a sufficient period but doesn’t melt so that grain growth occurred. The heat affected zone is also the region whose mechanical properties and microstructure have been altered due to the heat of welding
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College is a new experience that comes along with a great deal of stress and pressure. Many freshmen at Morgan are under stress and pressure as they begin their college career; the effects of various stresses impact students’ everyday lives. Being overwhelmed is one of the most commonly felt effects of college stress. Because students feel overwhelmed they may struggle with perfectionism‚ issues such as drug use and heavy drinking‚ as well as dramatic weight gain or loss—it is likely that some students
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Minimizing school shootings with gun control The United States has seen an increase in school shootings in the past couple of years. Such a dramatic increase that it seems like a trend know. So far this year there has been a reported 52 school shootings. There have been about 142 school shootings since the Sandy Hook massacre in 2012. This is a large number when compared to past years. Implementing gun control will help minimize school shootings. People who oppose gun control think that regulating
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Research into the effects of stress on the immune system There have been various studies into the effects of stress on the immune system. Kiecolt-Glaser researches this by looking at how quickly wounds heal. She used 13 women aged 47-81 who cared for Alzheimer’s and Dementia sufferers. They had naturally occurring high stress levels‚ and this is why she chose them. The women were matched with volunteers for maximum similarity (the matched pairs design). Kiecolt-Glaser tested all the women’s
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Tylynn Schaber Stress and Happiness Which sounds more fun‚ doing the dishes or playing a little Xbox? One would probably say playing their game and put the chores on the back burner because they could always do it later. This would be classified as procrastination. Procrastination may cause many negative effects including unnecessary stress and loss of one’s happiness. Procrastination is the practice of poor time management paired with lack of willpower. There are two different types of procrastination:
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the total amount of air that the lung can hold; normally it is 6 litters for adult male and 4.2 litters for an adult female. The vital capacity (VC) measures the maximum amount of air that can be inhaled or exhaled during a respiratory cycle. The Residual Volume (RV) is the amount of gas remaining the lungs after a maximal expiration; normally it takes up 20% of the total lung capacity. VC + RC = TLC. The Inspiratory Reserved Capacity (IRC) is the amount of air that can be inhaled after the end of
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part of the brain in charge of emotions and complex problem solving (Hölzel‚ et al.‚ 2011). Mindfulness also decreases the size of the amygdala‚ a key player in anxiety and the center of the brain’s fight or flight response. Mindfulness decreases the stress hormone cortisol and increases GABA (Guglietti‚ Daskalakis‚ Radhu‚ Fitzgerald‚ & Ritvo‚ 2013)‚ an important neurotransmitter that‚ when low‚ is associated with anxiety disorders and panic attacks. Lastly‚ Mindfulness can strengthen and activate the
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For this assignment I propose to look at the causes‚ effects and treatment of Addictive Behaviours primarily focusing on substance abuse i.e. drugs. The main body of my research shall derive from a UK study on addictive behaviours defining attentional bias for substance-related stimuli‚ the effects of attentional bias manipulation on craving and substance use and the treatments available. I shall also support my investigations through theoretical synthesis and conclude with the importance of understanding
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