basics of electronics devices and circuits ppt

... 5 Power Electronics: Devices and Circuits Figure 5.3: Diode switching characteristics Sources: Mohan 1995 [2] 86 Power Electronics: Devices and Circuits 5.3 87 Power Semiconductor Devices as ... property of magnetic component is the change of inductor current is proportional to the change of magnetic flux of the inductor or transformer core If Power Electronics: Devices and Circuits 94 ... The effects of reverse recovery of diode are not only increasing the power dissipation of diode itself but also increaseing the losses of other devices connected For power electronics circuits switching...

Ngày tải lên: 31/07/2014, 14:20

... few men and boys daring distant voyages and the mischances of foundering or stranding, but of facing an incessant plague of privateers, French and Spanish, Dutch and English, or a swarm of freebooters ... Governor of New York, New Hampshire, and Massachusetts, to command an armed ship and harry the pirates of the West Indies and Madagascar Strangest of all the sea tales of colonial history is that of ... they briskly and cheerily belabored each other with grape and solid shot Talbot's speaking-trumpet was shot out of his hand, the tails of his coat were shorn off, and all the officers and men stationed...

Ngày tải lên: 17/02/2014, 01:20

... stimulation of various effector enzymes and formation of second messengers, leading to aggregation and secretion of granule contents Specific mechanisms involved in the process of centralization of granules ... stimulation of phospholipases and formation of second messengers that facilitate mobilization of cytosolic free calcium, centralization of granules, assembly of filamentous actin, expression of binding ... studying and teaching platelet physiology and pharmacology at the University of Minnesota Over the years, he has made significant contributions to the understanding of platelet function and its...

Ngày tải lên: 17/02/2014, 05:20

... contribution of the c and d subunits to ligand recognition came from photoaffinity labeling studies using [3H]nicotine and [3H]d-tubocurarine (dTC), which identified residues cW55 and the Role of a–c ... effects of phenyltrimethylammonium (PTMA) on activation of WT and mutant receptors were also investigated PTMA is a poor partial agonist of the WT nAChR and it elicits a maximum current of only ... concentrations of dTC (1–3 nm) potentiated ACh- evoked currents (by up to 25%) in both WT and mutant receptors (Fig 3B) A B Expression levels and maximum amplitude of WT and mutant nAChR Fig The effects of...

Ngày tải lên: 19/02/2014, 07:20

... marker of NK cell differentiation, CD2, CD7, and CD8 and are negative for CD3 and CD5.204,205 The tumors often express T-cell intracellular antigen-1 (TIA-1), perforin, and FAS (CD95/Apo1) ligand.206 ... characterized by a suppurative and granulomatous inflammatory reaction and formation of multiple abscesses and sinus tracts Cervicofacial actinomycosis is the most common manifestation of infection.79-84 ... cervicofacial disease usually report a history of dental surgery, oral trauma, poor hygiene, or periodontal disease and painless soft tissue swelling involving the submandibular area Long-standing...

Ngày tải lên: 19/02/2014, 08:20

... denaturation of protein, and gelatinization of starch Some of the product system characteristics of importance are the heat transfer coefficients, pressure drop, and extent of fouling Many of these ... implementation of this type of control and it can be applied to many types of heat exchangers The cascade is not required, but does offer the advantages of faster response and provides a view of the ... controls and build up to process control of retorting and aseptic processing, strategies to correct deviant thermal processes, optimization of thermal processes, and control and modeling of continuous...

Ngày tải lên: 21/02/2014, 22:20

... support of the Division of Viral Hepatitis and Division of Cancer Prevention and Control of the Centers for Disease Control and Prevention, the Department of Health and Human Services Office of Minority ... cirrhosis and cancer, the extent of ongoing risk behaviors, and the impact of HIV coinfection and other cofactors Assess the role of state and local disease registries in the delivery of prevention and ... not-for-profit coalition of public, private, and voluntary organizations; the Department of Health and Human Services Office of Minority Health; and VA sought guidance from the Institute of Medicine...

Ngày tải lên: 06/03/2014, 01:20

... PVT 111 PDNP PAS (PEDANANDIPADU COLLEGE OF ARTS AND SCIENCES) MBA GTR AU PEDANANDIPADU COED NA PVT 112 PDNP PAS (PEDANANDIPADU COLLEGE OF ARTS AND SCIENCES) MCA GTR AU PEDANANDIPADU COED NA PVT ... SWARNANDHRA COLLEGE OF ENGG AND TECH MBA WG AU NARSAPURAM COED NA PVT 376 SWRN SWARNANDHRA COLLEGE OF ENGG AND TECH MCA WG AU NARSAPURAM COED NA PVT 377 VIST SRI VENKATESWARA INST OF SCIENCE AND ... INSTITUTE OF SCI AND TECH MBA HYD OU BANDLAGUDA COED NA PVT 452 MHVR MAHAVEER INSTITUTE OF SCI AND TECH MCA HYD OU BANDLAGUDA COED NA PVT 453 MJCT MUFFAKHAM JAH (MJ) COLLEGE OF ENGG AND TECH MCA...

Ngày tải lên: 08/03/2014, 02:21

... writings and programs produced by physicians, nurses, and public health of cials contained a universe of ideas about race and gender, the relationship of medicine to society, and the status of the ... southern, and poor.2 For Smith and others, portrayals of the midwives were linked to a specific set of representations of the African American body and of African American families and communities ... emphasize her experience of racism and professional neglect as a rebuke to those who would use her life to comment on the history and politics of race and racism The seeming absence of bitterness, in...

Ngày tải lên: 15/03/2014, 13:20

... focus of the book is to help professionals and students understand medical and psychosocial aspects of chronic illness and disability and how they affect an individual’s functioning in all areas of ... illness and disability and need to have an understanding of medical conditions, their implications, and need to have an understanding of medical terms It is designed as a reference book for professionals ... OF CHRONIC ILLNESS AND DISABILITY Impact of Chronic Illness and Disability .1 Disease and Illness Impairment, Disability, and Handicap Stress in Chronic Illness and...

Ngày tải lên: 15/03/2014, 19:20

... chemotherapeutics adriamycin, etoposide and cisplatin), the levels of Itch become reduced and allow the accumulation of p73 [53] p73 displays functions in apoptosis induction, and many of its pro-apoptotic target ... Bernardi R & Pandolfi PP (2007) Structure, dynamics and functions of promyelocytic leukaemia nuclear bodies Nat Rev Mol Cell Biol 8, 1006–1016 Krieghoff-Henning E & Hofmann TG (2008) Role of nuclear ... kinases ATM and ATR ATR and ATM in turn phosphorylation-dependently activate the downstream checkpoint kinases Chk1 and Chk2, respectively, and the tumour suppressor p53 Furthermore, ATM and ATR...

Ngày tải lên: 16/03/2014, 00:20

... University Vice of Applied Sciences Prof Dr phil Marion SCHICK  Minister for Culture, Youth and Sport of the federal state of Baden-Württemberg Prof Dr oec Franz WALDHERR  Director of the Centre ... Human Resources, B Personnel Management and Development Prof Dr rer pol Andreas KRAHE  Bookkeeping and Accounting, Cost and Results Accounting, Controlling Prof Dr rer pol Gottfried RÜHLEMANN  ... Engineering Prof Dr jur Thomas WILRICH Business Law Prof Dr Ing Eckhard HOFFMANN  Technical Mechanics, Machine Elements, Development and Construction Prof Dr Ing Reinhard KOETHER  Production and Manufacturing...

Ngày tải lên: 16/03/2014, 03:20

... History of Electronics In science we study about the laws of nature and its verification and in technology, we study the applications of these laws to human needs Electronics is the science and technology ... Electronic Devices and Circuits Dr K Lal Kishore Ph.D, MIEEE, FIETE, MISTE, MISHM Registrar and Professor of Electronics & Communication Engineering, Jawaharlal ... twisted and related the motion of the mass v and B are constant in magnitude since fm is constant in magnitude and perpendicular to the direction of motion of the particle This type offorce resolution...

Ngày tải lên: 16/03/2014, 09:20

Ngày tải lên: 18/03/2014, 13:22

... B and D (p< 0.025) and C and D (p< 0.001) LDL-c decreased significantly between groups A and C (p< 0.01), groups B and C (p< 0.025), groups A and D (p< 0.001) and B and D (p< 0.001) Lipid profile ... groups A and D (p< 0.001), B and D (p< 0.05) and C and D (p< 0.025) There was a significant reduction in total cholesterol/HDL-c ratio between groups A and D (p< 0.001), B and D (p< 0.001), C and ... groups A and B (p< 0.005), A and C (p< 0.001) and A and D (p< 0.01) There was a statistically significant reduction in Apo B100/Apo A-I ratio between groups A and B (p< 0.025), groups A and C (p

Ngày tải lên: 22/03/2014, 14:20

... Periodically, RAND Corporation researchers publish with commercial presses These books are not available from RAND but can be requested directly from the publisher, ... be requested directly from the publisher, except in cases where the rights have reverted to RAND and we have republished a new edition ...

Ngày tải lên: 29/03/2014, 19:20

... electricity and elevators Some of the hotels were built on Main Street and east of Main to take advantage of proximity to railroad stations east of the downtown But others, large and small, could ... Rick Mechtly, Andrew H Nelson, Elizabeth M Roseman, and John Taube The majority of images in this book were made available courtesy of the University of Southern California on behalf of the USC ... Brown Winston and Margarita Bandini Winston owned it To the left of the hotel is the Farmers and Merchants Bank of Los Angeles In 1873, the hotel changed names to The Clarendon, and around 1875...

Ngày tải lên: 30/03/2014, 12:21

... Greece and Rome were reevaluated, admired, and held as standards Like their Greek and Roman predecessors, Renaissance artists emphasized the conquest of nature and the great capacity of human ... form to depict a panoramic view of landscape “which could include a whole succession of mountain ranges, near and far, possessed of a geological sense of space and time” (Paine & Soper, 1955, ... the analyses of landscapes, the distance from the bottom of the picture to the location of the horizon was measured.4 In the analyses of portraits, we measured the ratio of the area of the face...

Ngày tải lên: 30/03/2014, 16:20

... numerator of the multinomial is the factorial of the total number of morph tokens, N , which equals the sum of frequencies of every morph type The denominator is the product of the factorial of the ... the length in characters of the ith morph, and α and β are constants Γ(α) is the gamma function: ∞ z α−1 e−z dz Γ(α) = (2) The lexicon consists of a set of nµ morphs and it makes no difference ... explore possibilities of using complementary and more standard evaluation measures, such as precision, recall, and F-measure of the discovered morph boundaries Concerning the length and frequency prior...

Ngày tải lên: 31/03/2014, 03:20

... wedding of Marie de' Medici and Henry IV of France The growth and ever-increasing popularity of the opera, the development of civilization, the increase of wealth and the population of new countries, ... intelligence, and profound sensibility, a tall and lean figure, a voice which was often uncertain and nasal, he required much determination and strength of character to overcome the defects and take ... greatest traditions of lyric art Like so many of the great singers of his time, Rubini first gained his reputation in the operas of Bellini and Donizetti, and many of the tenor parts of these works...

Ngày tải lên: 31/03/2014, 13:20