general state of stress
Mechanics of material
Ngày tải lên :
09/03/2016, 10:22
... Properties of Mohr’s circle 307 c Verification of Mohr’s circle 308 8.7 Absolute Maximum Shear Stress 314 a Plane state of stress 315 b General state of stress 316 8.8 Applications of Stress Transformation ... of inertia of area polar moment of inertia of area centroidal polar moment of inertia of area stress concentration factor; radius of gyration of area; spring sti¤ness length e¤ective length of ... 284 8.4 State of Stress at a Point (Plane Stress) 293 a Reference planes 293 b State of stress at a point 294 c Sign convention and subscript notation 294 8.5 Transformation of Plane Stress 295...
- 576
- 2.6K
- 0
SHEAR STRESS IN BEAMS
Ngày tải lên :
08/04/2014, 11:28
... principal stresses and the maximum shearing stress We can draw, on a side elevation of the beam, lines showing the direction of the principal stresses Such lines are called the lines ofprincipal stress; ... total shearing force of 200 kN Calculate the shearing stresses at the top and middle of the web (Cambridge) Shearing stresses in an I-beam 255 Solution The second moment of area of the web about ... the top of the flange the longitudinal stress is -96 MN/m2,so the greatest principal stress at the top of the web is 20% greater than the maximum longitudmal stress 258 10.6 Shearing stresses...
- 21
- 260
- 0
Báo cáo y học: " Liver sinusoidal endothelial cell modulation upon resection and shear stress in vitro" doc
Ngày tải lên :
13/08/2014, 13:20
... http://www.comparative-hepatology.com/content/3/1/7 Figure Immunofluoresence of LECs before and after shear stress Immunofluoresence of LECs before and after shear stress LECs were reacted with anti VE-cadherin ... conditions and shear stress Co-staining analysis of both suggests the formation of a complex demonstrating a strong tendency to the membrane (data not shown) Co-staining of VE- Page of 11 (page number ... maximal values of blood flow per mg of liver were determined at 24 hrs thereby returning to baseline levels The inconsistency between the number of gaps and the ratio of blood flow per mg of liver...
- 11
- 231
- 0
Báo cáo y học: "Mechanisms of leukocyte distribution during sepsis: an experimental study on the interdependence of cell activation, shear stress and endothelial injury" potx
Ngày tải lên :
13/08/2014, 21:21
... effect of shear stress in general, PMN adhesion increased with decreasing shear stress in Ploppa et al Critical Care 2010, 14:R201 http://ccforum.com/content/14/6/R201 Page of 13 Figure Effects of ... http://ccforum.com/content/14/6/R201 Figure Effects of shear stress and different conditions of activation on rolling velocities Plots of mean rolling velocities of >25 PMN (mean ± SEM; n = 4) Circles indicate ... affinity configuration of LFA-1 [37] Reflecting the well-known inverse correlation of shear stress and adhesion in general [19-22] PMN-adhesion was largely influenced by shear stress in all cultures...
- 13
- 426
- 0
SIGNALING MECHANISMS THAT SUPPRESS THE ANABOLIC RESPONSE OF OSTEOBLASTS AND OSTEOCYTES TO FLUID SHEAR STRESS
Ngày tải lên :
24/08/2014, 11:45
... dynes/cm2) of shear stress force at the outer radius of the dish Shear stresses toward the center of the dish are lower in magnitude (Sakai et al., 1999) While still a new method to the field of bone ... adjustable flow rate (0-25 dynes/cm2) of media across the surface of the bone cells The main advantage of using of an oscillatory pump to induce fluid shear stress is the controllable and uniform ... quantification of FRET signals can offer Ångstrom level measurements of the distance between the donor and acceptor fluorophores within living cells There are a number of different ways of measuring...
- 134
- 134
- 0
a biomedical engineering approach to investigating flow and wall shear stress in contracting lymphatics
Ngày tải lên :
13/11/2014, 11:06
... AND WALL SHEAR STRESS IN CONTRACTING LYMPHATICS A Dissertation by JAMES BRANDON DIXON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements ... 181 ix LIST OF FIGURES Page FIGURE 1.1 Confocal microscopy image of a portion of a mesenteric lymphatic vessel illustrating the structure of valve leaflets Effects of imposed flow on ... duration of the sequence given the limitation of RAM This resulted in a total time of 62 ms between each set of images (16 * ms + ms + 22 ms memory transfer time) This allowed for the measurement of...
- 196
- 176
- 0
Effects of red blood cell aggregation, hematocrit and tube diameter on wall shear stress in microtubes
Ngày tải lên :
05/10/2015, 18:59
... in study of in vitro [62-64] and in vivo [65, 66] Figure shows a typical micrograph of the alignment of endothelial cells exposed to shear stress [61] The degree of the time course of the change ... DERIVATION OF WSS 71 APPENDIX B FIGURES OF RELATIVE WSS 73 CURRICULUM VITAE 83 v SUMMARY Wall shear stress (WSS), a tangential stress exerting on the inner surface of blood ... Figure B1 Comparison of relative WSS of blood samples at 40% Hct in microtubes of ID 30 µm, 50 µm and 100 µm in non-aggregating blood 73 Figure B2 Comparison of relative WSS of blood samples...
- 96
- 478
- 0
Effect of beam size and FRP thickness on interfacial shear stress concentration and failure mode of FRP strengthened beams
Ngày tải lên :
05/10/2015, 19:02
... Total energy of beam f c' Cylinder strength of concrete fcu Cube strength of concrete fct Tensile strength of concrete Ga Shear modulus of adhesive hc Depth of beam I Second moment of area Itr ... sectional area of FRP b Distance from CFRP cut-off point to loading point bc Width of concrete beam bfrp Width of FRP sheet Bm Modified shear span C Coefficient of friction d Effective depth of concrete ... Distance from top of beam to centre of FRP dmax Maximum aggregate size Ea Elastic modulus of adhesive Ec Elastic modulus of concrete Eelastic Elastic energy of beam Efrp Elastic modulus of FRP Etol...
- 122
- 359
- 1
Báo cáo hóa học: " A Maximum Likelihood Approach to Least Absolute Deviation Regression" potx
Ngày tải lên :
23/06/2014, 01:20
... been with the faculty of the Department of Electrical and Computer Engineering at the University of Delaware, where he is the Charles Black Evans Professor and Chairman of Electrical and Computer ... median output is found Two criteria are often used to compare LAD algorithms: speed of convergence and complexity Most of the efficient algorithms, in terms of convergence speed (except for Wesolowsky’s ... +K) × (K +1) matrix A The initial value of A is A= X Y , I (22) where Y is an N × vector of observations of the dependent variable and X is an N × K matrix of the independent variables For the simple...
- 8
- 289
- 0
LRFD pre-stressed beam.mcd
Ngày tải lên :
06/09/2012, 15:17
... eccentricity from bottom of beam column = eccentricity of non-comp section LRFD pre-stressed beam.mcd 7/1/2003 31 of 71 Prestress Losses LRFD 5.9.5.1 The total loses shall be the sum of elastis shortening ... strength of tendions LRFD pre-stressed beam.mcd 7/1/2003 46 of 71 fps = actual stress in strand c = compression depth dp = distance from extreme compression fiber to centroid of tendions Aps = area of ... prestressing strands fy = yield of tension reinforcing As = area of tension reinforcing A's = area of compression reinforcing f'y = yield of compression reinforcing β1 = 5.7.2.2 b = width of...
- 71
- 494
- 1
Báo cáo y học: "Influence of Cyclodextrin Complexation with NSAIDs on NSAID/Cold Stress-Induced Gastric Ulceration in Rats"
Ngày tải lên :
26/10/2012, 08:57
... principal mechanism of action of all NSAIDs is the inhibition of the biosynthesis of prostaglandins by blocking the activity (selectively and/or non-selectively) of two isoforms of cyclooxygenase ... the exception of aspirin, NSAIDs inhibit synthesis of prostaglandins (mediators of inflammation) via competition with arachidonic acid for the two isoforms Generally, in the absence of any pathological ... Preparation of CD Solutions An aqueous solution of each CD was prepared by dissolving accurately weighed CDs (180 mg of β-CD and 300 mg of HP-β-CD) in 10 ml of distilled water with the aid of a UP100H...
- 8
- 529
- 0
Báo cáo y học: "NITRIC OXIDE (NO), CITRULLINE – NO CYCLE ENZYMES, GLUTAMINE SYNTHETASE AND OXIDATIVE STRESS IN ANOXIA (HYPOBARIC HYPOXIA) AND REPERFUSION IN RAT BRAIN"
Ngày tải lên :
26/10/2012, 09:07
... down regulation of GS production and an increased clearance of this enzyme apart from modulation of GS by NO Activity of the GS could be involved in the regulation of concentration of glutamate ... immunoreactivity at 5days after induction of excitotoxicity (23) Increased formation of NO by stimulated activity of NOS depends upon a continuous supply of arginine at the site of synthesis Arginine is a semi ... Activities of AS and AL were elevated in all the brain regions of rats subjected to anoxia The mechanism of increased activities of these enzymes is not clear However the possibility of induction...
- 8
- 622
- 0
Báo cáo y học: "Low socio-economic status, smoking, mental stress and obesity predict obstructive symptoms in women, but only smoking also predicts subsequent experience of poor health"
Ngày tải lên :
31/10/2012, 15:34
... examinations) of 91%, 83%, 70% and 71%, respectively The participation status of the original cohort (born in 1930) at the time of the 32-year follow-up is presented in Table Details of the sampling ... = Large-scale employers and officials of high or intermediate rank was classified as the high socio-economic group; • Groups and = Small-scale employers, officials of lower rank and foremen were ... as a part of the clinical examination In 2000-2001, 231 of these women (73%), now 70 years old, underwent lung function tests with PEF and spirometry Table Background characteristics of the original...
- 6
- 505
- 0
phân tích dự án kinh doanh- kinh doah dịch vụ xả stress.doc
Ngày tải lên :
09/11/2012, 08:31
... nào? Vậy giải pháp cho tất điều gì? Là gì? Và ? + Xả stress với phòng xả stress Ví dụ phòng cách âm, phòng đập chén đĩa Tại lại gọi phòng xả stress ( hay gọi phòng tự sướng phòng tự kỉ )? Nó có ... xả stress với hình thức thông thường mà khách hàng hay lui tới 14 - Còn với phải bỏ từ 100.000 đến 200.000VND xả stress cách khoa học, đem lại cảm giác thư thái lấy lại tự tin sống , mà bệnh stress ... xoay quanh chủ đề mở công ty dịch vụ xả stress , vừa giúp thân ,vừa giúp người tự xả stress cho thân 4, Công nghệ kỹ thuật dự án: Đây loại hình dịch vụ xả stress nên công nghệ kỹ thuật áp dụng...
- 34
- 2.5K
- 15
7 AHA! KHƠI SÁNG TINH THẦN VÀ GIẢI TỎA STRESS
Ngày tải lên :
12/11/2012, 09:54
... trạng stress bạn.” Vô lý! Sự thật cách phản ứng với người khác kiện sống nguyên nhân gốc rễ gây stress Việc kiểm soát stress đồng nghĩa với việc kiểm soát thân Khi kết tội hay việc khiến bị stress, ... dùng diễn thuyết! Về khái niệm, stress điều không bình thường chẳng lành mạnh chút nào, thế, trạng thái tiêu cực Sau khái niệm stress giúp làm rõ nhiều điều: Stress hình thái đau đớn, đến để ... điệp Tại vậy? Bởi dạy cho tin số loại stress cần thiết tốt “Họ” bảo với bình thường tin “họ” Vì vậy, để stress lớn lên bên mà không nhận tạo chết cho Bảo stress tốt, tự châm vào ngòi nổ cháy chậm...
- 44
- 888
- 6
Mô hình maximum entropy và ứng dụng
Ngày tải lên :
23/11/2012, 15:03
... nhiên, với khả mạnh mẽ máy tính không vấn đề Hiện có nhiều thuật toán dùng để ước lượng thám số như: Generalized Iterative Scaling (GIS) Improved Iterative Scaling (IIS), Igradient ascent, conjugate...
- 61
- 1.3K
- 15
Stress trong học tập và cách ứng phó ở học sinh cuối cấp THPT
Ngày tải lên :
15/01/2013, 10:30
... học sinh Stress tượng bình thường sống sống mà thiếu stress, nhiên việc đối phó stress để làm giảm hậu không đáng có lúc dễ dàng Trong nghiên cứu chúng tôi, học sinh lớp 12 ứng phó với stress qua ... đến stress cho học sinh cuối cấp THPT DANH MỤC TÀI LIỆU THAM KHẢO Ảnh hưởng stress đến kết thi học kỳ sinh viên Nguyễn Bá Đạt Tạp chí tâm lý học số 2001 High school student stress and the role of ... Homework, stress and mood disturbance in senior high school students Psychological Reports Kouzma, Nadya M.; Kennedy, Gerard A.Vol 91(1), Aug 2002, pp 193-198 Sources of stress and coping responses of...
- 6
- 4.3K
- 71
Kỹ năng đối phó với stress
Ngày tải lên :
24/01/2013, 16:40
... phó với stress I Tr o n g s i n h h o t h ằ n g n g y nhận dấu hiệu stress quan sát đừ ng quan tâm đến việc lặt vặt ngủ đủ học cá ch thư giã n tha y đổi cá ch nhìn việc hã y trút bỏ stress theo ... sinh hoạt ngày nhận dấu hiệu stress quan sát đừng quan tâm đến việc lặt vặt ngủ đủ học cách thư giãn thay đổi cách nhìn việc trút bỏ stress theo cách Nhận dấu hiệu stress Dấu hiệu (sự bất bình ... khăn Ngủ đủ Thiếu ngủ khiến bạn thêm stress Tuyệt đối không trốn tránh rượu hay thuốc 5.Học cách thư giãn Xoa bóp tập thở thư giãn hữu dụng để kiếm soát stress xóa bớt ưu phiền khỏi tâm trí...
- 18
- 837
- 9