Mechanics of Materials
... publishes specifications and standards for materials and testing Other standardizing organizations are the American Standards Association (ASA) and the National Institute of Standards and Technology (NIST) ... understanding of mechanical behavior is essential for the safe design of all types of structures, whether airplanes and antennas, buildings and bridges, machines and motors, or ships and spacecraft ... Stress and Strain 11 Uniaxial Stress and Strain The definitions of normal stress and normal strain are based upon purely static and geometric considerations, which means that Eqs (1-1) and (1-2)...
Ngày tải lên: 23/06/2014, 20:05
... 81.10, AWS B1.ll, AWS A3.0, and in the convenient AWS publication The Everyday Pocket Handbook for Visual Inspection and Weld Discontinuities-Causes and Remedies (see Figure and Annex D-Selected References) ... ultrasonic testing (UT) ,and radiographic testing (RT) Each method has advantages and limitations, and must be specified only after a thorough understanding of the principles involved and how they relate ... A, B, C, and D, of Section II for both ferrous and nonferrous base metals, filler materials, and mechanical properties Section V is the NDT section and Section IX refers to ”Welding and Brazing...
Ngày tải lên: 12/03/2014, 17:18
... (2) Reviewing and approving all PV/S designs to ensure compliance with applicable codes and standards (3) Reviewing and approving PV/S certification, recertification, inspection, and testing procedures ... Directorates and Operating Organizations Other JSC directorates and operating organizations are responsible for: (1) designing and fabricating their PV/S to applicable codes and standards outlined ... considered mandatory 2.1 NASA DOCUMENTS a JPD 1710.1, Design, Inspection, and Certification of Pressure Vessels and Pressurized Systems b JPG 1700.1, Johnson Space Center Safety and Health Handbook...
Ngày tải lên: 31/07/2014, 23:21
Tài liệu Rooftops to Rivers II: Green strategies for controlling stormwater and combined sewer overflows ppt
... growth and imperiling critical habitat, green space, and biodiversity.14 As our population shifts to a more urbanized setting, our landscape shifts as well Grassland, prairie, and forestland are ... manuals and best practices, and provide technical assistance to state and local governments n Provide green infrastructure project grants to state and local governments and to stormwater and wastewater ... estimates, state and local governments spent $46.7 billion in 2007–08 on the construction, operation, and maintenance of sanitary and stormwater sewer systems and sewage disposal and treatment facilities,...
Ngày tải lên: 17/02/2014, 10:20
Effectiveness of PRECEDE model for health education on changes and level of control of HbA1c, blood pressure, lipids, and body mass index in patients with type 2 diabetes mellitus docx
... (0 and at month 1, were baseline visits; and to 9, were follow-up visits, every months) Baseline data were collected during visits and 1, and during visits to assigned models were applied and ... study and participated in its design and perfomed the statistical analysis and drafted the manuscript FJAB, JCAH, CBL drafted the manuscript and made substantial contributions to the analysis and ... participate; 13 refused, and PCC were randomized in two arms: Precede Health Promotion Education (PHPE) and Conventional Health Promotion Education (CHPE) The participants at each PCC were randomized by...
Ngày tải lên: 05/03/2014, 22:21
Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations pdf
... accessing information and submitting comments, see “Accessing Information and Submitting Comments” in the SUPPLEMENTARY INFORMATION section of this document SUPPLEMENTARY INFORMATION: I A Accessing Information ... Information and Submitting Comments Accessing Information Please refer to Docket ID NRC-2013-0069 when contacting the NRC about the availability of information regarding this document You may access information ... Judge of the Atomic Safety and Licensing Board Panel, will rule on the request and/ or petition; and the Secretary or the Chief Administrative Judge of the Atomic Safety and Licensing Board will...
Ngày tải lên: 17/03/2014, 14:20
ROOFTOPS TO RIVERS: Green Strategies for Controlling Stormwater and Combined Sewer Overflows pot
... standards are unlikely to be met without effectively managing stormwater and CSO discharges Green infrastructure—trees, vegetation, wetlands, and open space preserved or created in developed and ... water balance is lost to a changing landscape and new impervious surfaces The trees, vegetation, and open space typical of undeveloped land capture rain and snowmelt, allowing it to largely infiltrate ... capturing and retaining rainfall, infiltrating runoff, and trapping and absorbing pollutants For example, the Village Homes community in Davis, California, uses a system of vegetated swales and meandering...
Ngày tải lên: 29/03/2014, 14:20
Elasto plastic stress and strain behaviour at notch roots under monotonic and cyclic loadings
... underpredict notch root stress and overpredict notch root strain for both notched round bars and flat plates and under both monotonic and cyclic loading conditions Notch root stress and strain predictions ... presented are discussed and summarized NOTCH STRESS–STRAIN MODELS The well-known and frequently used models for notch stress and strain analyses are the linear rule, Neuber’s rule and the strain energy ... geometries used and the experimental strain measurements is provided Finite element analyses and comparisons with predictions from analytical notch stress and strain rules for both monotonic and cyclic...
Ngày tải lên: 24/05/2014, 20:28
Báo cáo khoa học: "Molecular analysis of hprt mutation in B6C3F1 mice exposed to ozone alone and combined treatment of 4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone and/or dibutyl phthalate for 32 and 52 weeks" ppsx
... following exposure to ozone, NNK, and DBP, and combined treatments of NNK and DBP on ozone for 32- and 52-wk The procedures for isolating lymphocytes from spleen and culturing hprt mutant T-cell ... that additive and/ or synergistic responses occurred when both mice sexes were exposed to ozone, NNK, and DBP, and the combination of ozone, NNK, and DBP through chromosome aberration and supravital ... NNK, DBP, and combined treatment of NNK and DBP on ozone were assayed for the mutant frequency of 6thioguanine-resistant (TGr) spleen lymphocytes in male and female mice after 32- and 52-wk exposures...
Ngày tải lên: 07/08/2014, 18:20
Báo cáo khoa học: "Renal carcinoma infiltrating inferior vena cava and combined valvular heart disease - one-stage uro-cardiological procedure: a case report" potx
... Warsaw, Poland 2First Department of Cardiac Surgery, Institute of Cardiology, Warsaw, Poland Authors’ contributions AAA made substantial contributions to the conception and design of management and ... aorta heart was stopped by cold blood cardioplegia, and both valves were repaired - dilated mitral annulus with C-G Future Band (Medtronic Inc.USA) and Figure CT scan showing involvement of infradiaphragmatic ... the thrombus was assessed intraoperatively and a decision not to use cardiopulmonary bypass for thrombectomy was made The kidney, the adrenal gland and the thrombus were removed intact (Figure...
Ngày tải lên: 09/08/2014, 03:21
Pressure Vessels Guide Book ppt
... and Pressure Vessel Code has been developed; it is a set of standards that assures every state of the safe design and construction of all boiler and pressure vessels used within its borders and ... Commission and then to be stamped with a National Board standard number Qualified and authorized boiler and pressure vessel manufacturers must be registered with the National Board of Boiler and Pressure ... Boiler and Pressure Vessel Inspectors is constantly working to assure greater safety of life and property by promoting and securing uniform enforcement of boiler and pressure vessel laws and uniform...
Ngày tải lên: 10/08/2014, 21:20
Báo cáo y học: " Comparison of ankle-brachial pressure index and pulse wave velocity as markers of cognitive function in a community-dwelling population" potx
... self-questionnaires and interviews The height and weight of subjects were measured, and body mass index (BMI) was calculated Low-density lipoprotein (LDL) cholesterol, triglyceride and HbA1c were ... analysis SK, SN and NYF contributed to study design and assisted in drafting the manuscript TU and IT completed initial survey construction, recruitment of participants AK, YS, KD and MM participated ... cholesterol, triglyceride and HbA1c were also measured by standard analytical techniques ABI and brachial-ankle PWV measurements The ankle and brachial pressures were measured using the volume-plethymographic...
Ngày tải lên: 11/08/2014, 16:22
Báo cáo y học: " Effectiveness of psychotherapeutic, pharmacological, and combined treatments for chronic depression: a systematic review (METACHRON)" ppsx
... intervention must be based on a scientific theory (in detail described and/ or manualized and/ or referenced; 2) a minimum of one contact (e.g session) between therapist and patient must take place (thus, ... Klein DN: Chronic Depression: Diagnosis and Classification Curr Dir Psychol Sci 2010, 19:96-100 Boland RJ, Keller MB: Course and outcome of depression In Handbook of depression Edited by: Gotlib ... review of full texts and made independently by two reviewers If disagreement occurs, it will be recorded and resolved by discussion Agreement between reviewers will be quantified and reported Types...
Ngày tải lên: 11/08/2014, 16:22
Báo cáo khoa học: "Associations among systemic blood pressure, microalbuminuria and albuminuria in dogs affected with pituitary- and adrenal-dependent hyperadrenocorticism" pps
... presence of nodular appearance and hyperechoic foci: normal or mild enlarged adrenal glands were classified as PDH; whereas adrenal glands with a nodular (or mass) appearance and hyperechoic foci were ... Acta Veterinaria Scandinavica 2010, 52:61 http://www.actavetscand.com/content/52/1/61 References Feldman EC, Nelson RW: Canine hyperadrenocorticism Canine and Feline Endocrinology and Reproduction ... pressure, microalbuminuria and albuminuria in dogs affected with naturally occurring pituitary-dependent (PDH) and adrenal-dependent hyperadrenocorticism (ADH) Page of Table Breeds and numbers of the...
Ngày tải lên: 12/08/2014, 18:22
Báo cáo khoa học: "Severe brain injury ICU outcomes are associated with Cranial-Arterial Pressure Index and noninvasive Bispectral Index and transcranial oxygen saturation: a prospective, preliminary study" pdf
... Surviving patients and patients with good neurological outcome have higher BIS and StcO2 values BIS and StcO2 are inversely related to ICP and CAP Index and directly associated with CPP BIS and StcO2 ... 0.0001 for all variables) Surviving and good neurological outcome patients have increased CPP, StcO2, and BIS and decreased ICP and CAP Index (Table 2) ICP, CPP, BIS and StcO2 rates are: ICP ≤20 = ... changes in ICP and CPP Such statistical associations support the validity of StcO2 and BIS and their potential clinical utility compared to ICP and CPP monitoring [17] The study and literature...
Ngày tải lên: 13/08/2014, 03:20
Báo cáo y học: " Determination of the threshold of cardiac troponin I associated with an adverse postoperative outcome after cardiac surgery: a comparative study between coronary artery bypass graft, valve surgery, and combined cardiac surgery" ppt
... design and coordination, performed acquisition, analysis, and interpretation of the data, and wrote the manuscript FH, EM and LG made substantial contributions to acquisition of data and helped ... [6,7,15], and with reports showing that a single 24hour cTnI value is a significant predictor of increased postoperative ICU stay and hospital stay [16] and is an independent predictor of short-term and ... type of surgery and is increased in complex and prolonged surgical procedures A more extensive direct surgical trauma to the myocardium and an increase in both aortic cross-clamping and CPB time...
Ngày tải lên: 13/08/2014, 08:20
Báo cáo y học: "Regional lung aeration and ventilation during pressure support and biphasic positive airway pressure ventilation in experimental lung injury" potx
... aeration and ventilation during BIPAP+SBmean and PSV In the current study, we investigated the distributions of regional aeration and ventilation at the lungs' apex, hilum and base during PSV and ... comparable oxygenation and hemodynamics, and increased PaCO2 and inspiratory effort; less nonaerated areas at end-expiration; decreased tidal hyperaeration and reaeration; and similar distributions ... study design MGA and MC drafted the manuscript and helped to perform the experiments PM, ARC and CS helped to perform the experiments and contributed to drafting the manuscript MC and VH developed...
Ngày tải lên: 13/08/2014, 20:21
Báo cáo y học: " Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study" ppt
... to and did not influence the current study Authors' contributions MWvB analyzed the data and drafted the manuscript JT and SMJ designed and supervised the study, performed the statistics, and ... 3010 Bern, Switzerland and 2Department of Anesthesiology and Pain Therapy, Bern University Hospital and University of Bern (Inselspital), Freiburgstrasse 10, 3010 Bern, Switzerland Received: 29 ... highest sum of sensitivity and specificity Data are presented as median and interquartile range (demographics and ventilator settings), as percentage (proportional data), and as mean ± SD (hemodynamic...
Ngày tải lên: 13/08/2014, 20:22