International Journal of Heat and Mass Transfer 52 (2009) 597–609 Contents lists available at ScienceDirect International Journal of Heat and Mass Transfer journal homepage: www.elsevier.com/locate/ijhmt Numerical simulation of parabolic trough solar collector: Improvement using counter flow concentric circular heat exchangers O. García-Valladares a‚*‚ N. Velázquez b a b Centro de Investigación en Energía‚ Universidad Nacional Autónoma de México‚ Privada Xochicalco s/n‚ Temixco‚ Morelos
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Lebanese international University BIOL 360: Human Physiology & Anatomy (4 credits) Course Syllabus Spring 2012-2013 Instructor sahar merhie Lecture Hours Tripoli campus: TTH 10;50 12;30 E-mail: sahar.merhie@liu.edu.lb Course description This course is designed to teach students human anatomy and physiology. Physiology is the study of the process or function of living things. The major
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2/20/2014 Frequently Used Equations - The Physics Hypertextbook Frequently Used Equations Mechanics velocity Δ s v= Δ t ds v= dt acceleration Δ v a= Δ t dv a= dt equations of motion v = 0+at v x =x0+v 0 +½ 2 t at weight W =m g momentum p =m v dry friction ƒ μ =N centrip. accel. v2 ac = r 2 ac =−ω r impulse J =F Δ t impulse–momentum F Δ= Δ t m v J =⌠ dt F ⌠ dt =Δ F p ⌡ kinetic energy potential energy ⌡ K =½ mv
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THE FALSE PROMISES OF SUNSCREENS The Real Consequences of Their Use It is said that sunscreen prevents sunburns and other skin diseases caused by the sun. However‚ on the flip side it’s also said that sunscreen is one of the main causes of skin diseases like melanoma. Sure‚ sunscreen prevents the epidermis from burning‚ but it has other consequences that follow. They not only increase the risk of skin cancers‚ they also expose the skin to a higher percentage of solar rays that break down collagen
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Head and Face | Findings | Analysis | Inspect the head: Size‚ Shape and Configuration. | Upon inspection patient’s head is symmetric‚ round‚ erect and in midline. No lesions are visible. | Normal | Inspect for involuntary movement. | Upon inspection patient’s head is held still and up right. | Normal | Palpate the head: palpate for consistency | Upon palpation patient’s head is hard and smooth without lesions. | Normal | Inspect the face: symmetry‚ features‚ movement‚ expressions and
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for blocking‚ infiltration‚ or surface anesthesia. For surface anesthesia many forms are available that can be used a few are before intubations‚ e.g. for endoscopies‚ and making local freezing less painful. Topically lidocaine has shown to relieve nerve pain due to damage of the shingles‚ but is not recommended as the first line of treatment. It also used to temporally fix Tinnitus (ringing of the ears) when no actual sound is present. Although it does not completely cure the illness‚ it has shown
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vibrate your ear drum‚ which goes to the nner ear and is changed to nerve signls you can sense. You can also feel sounds. A sound wave has characteristics just like any other type of wave‚ including amplitude‚ velocity‚ wavelength and frequency. The amplitude of a sound wave is its loudness. Since sound is a compression wave‚ its loudness or amplitude would correspond to how much the wave is compressed. The velocity of a sound wave is or close too 344 meters/second‚ 1130 feet/sec. or
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Definition The median nerve‚ which controls movement and feeling in the palm-side of the hand‚ runs from the forearm to the hand through the carpal tunnel in the wrist. The bottom and sides of this tunnel are formed by bones‚ and the top of the tunnel is covered by strong band of connective tissue called a ligament. Repetetive movement‚ or certain conditions such as pregnancy and arthritis‚ can cause swelling within the carpal tunnel. The swelling puts pressure on the median nerve and can cause numbness
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CHAPTER 6 continued… Kant’s Dualism * Noumenal World * Things as they are * We cannot experience this directly * Phenomenal World * Things as they are experience/perceived. * Mental representations of the noumenal world Perceptual Theory 1. Objects in the world 2. Sensations (secondary qualities‚ simple ideas) 3. Structuring by the mind 4. Perception‚ and Knowledge of universals/abstracts Space Perception * Kantian problem of Space
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Myers Psychology 6/e Test Bank II CHAPTER 5 Sensation Learning Objectives Sensing the World: Some Basic Principles (pp. 172-177) 1. Contrast the processes of sensation and perception. 2. Distinguish between absolute and difference thresholds‚ and discuss research findings on subliminal stimulation. 3. Describe the phenomenon of sensory adaptation‚ and explain its functional value. Vision (pp. 177-188) 4. Explain the visual process‚ including the stimulus input‚ the structure of the
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