|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 保护层厚度对受拉与受压粘结强度的影响显示文摘针对不同混凝土保护层厚度,分别进行了12个拔出试验和18个推出试验,并对试验结果进行了对比与分析.结果表明:当保护层厚度较小时,无论是拔出试件还是推出试件,均发生劈裂破坏;当保护层厚度较大时,推出试件钢筋被缓缓推出,混凝土没有开裂;增加混凝土保护层厚度既可以提高钢筋的受拉粘结强度,也可以提高钢筋的受压粘结强度;混凝土保护层厚度在一定限值范围内对钢筋受拉粘结强度影响较大. | 李海涛 Andrew J Deeks 苏小卒 黄东升 | 2012 | 华中科技大学学报(自然科学版)2012,40,5: | 6 |
| 2 | Numerical Modeling of Response and Damage of Masonry Walls to Blast Loading显示文摘To model the damage process of masonry walls under blast loading, a dynamic continuum damage material model is constructed for brick and mortar separately. The degradation of both the stiffness and strength are governed by a damage variable. By using the proposed material model, damage and fragmentation of a typical masonry wall under blast loading at different scaled distances is calculated. The hazard level of the masonry wall to blast loading is evaluated by analyzing the numerical results. | DEEKS Andrew | 2006 | Transactions of Tianjin University2006,12,B09: | 6 |
| 3 | 中欧美拉伸锚固长度比较研究显示文摘对中欧美规范中拉伸锚固长度的定义和计算公式进行了比较,并选取不同工况,重点考虑了钢筋间距和直径、混凝土强度和保护层厚度的影响,用规范公式对梁和板中的锚固长度进行了计算分析。通过对比发现,在几种主要因素影响下,Eurocode 2锚固长度曲线变化趋势和极限锚固长度曲线变化趋势整体上比较接近。当考虑钢筋间距和直径的影响时,在梁中和板中,GB 50010—2002的变化趋势和Eurocode 2比较相似,值也比较接近。在考虑混凝土强度和保护层厚度时,GB 50010—2002精细方法计算值在影响因素取值较大时,对于板来说偏保守,建议取个适当的折减系数。ACI318-05多数因素影响下均偏保守,建议考虑相应因素的影响时取合适的折减系数。 | 李海涛 苏小卒 Andrew J DEEKS | 2010 | 结构工程师2010,26,3: | 6 |
| 4 | Diagnostic non-invasive model of large risky esophageal varices in cirrhotic hepatitis C virus patients显示文摘AIM To build a diagnostic non-invasive model for screening of large varices in cirrhotic hepatitis C virus(HCV) patients. METHODS This study was conducted on 124 post-HCV cirrhotic patients presenting to the clinics of the Endemic Medicine Department at Mansoura University Hospital for evaluation before HCV antiviral therapy: 78 were Child A and 46 were Child B(score ≤ 8). Inclusion criteria for patients enrolled in this study was presence of cirrhotic HCV(diagnosed by either biopsy or fulfillment of clinical basis). Exclusion criteria consisted of patients with other etiologies of liver cirrhosis, e.g., hepatitis B virus and patients with high MELD score on transplant list. All patients were subjected to full medical record, full basic investigations, endoscopy, and computed tomography(CT), and then divided into groups with no varices, small varices, or large risky varices. In addition, values of Fibrosis-4 score(FIB-4), aminotransferase-to-platelet ratio index(APRI), and platelet count/splenic diameter ratio(PC/SD) were also calculated.RESULTS Detection of large varies is a multi-factorial process, affected by many variables. Choosing binary logistic regression, dependent factors were either large or small varices while independent factors included CT variables such coronary vein diameter, portal vein(PV) diameter, lieno-renal shunt and other laboratory noninvasive variables namely FIB-4, APRI, and platelet count/splenic diameter. Receiver operating characteristic(ROC) curve was plotted to determine the accuracy of non-invasive parameters for predicting the presence of large esophageal varices and the area under the ROC curve for each one of these parameters was obtained. A model was established and the best model for prediction of large risky esophageal varices used both PC/SD and PV diameter(75% accuracy), while the logistic model equation was shown to be(PV diameter ×-0.256) plus(PC/SD ×-0.006) plus(8.155). Values nearing 2 or more denote large varices.CONCLUSION This model equation has 86.9% sensitivity and 57.1% specificity, and would be of clinical applicability with 75% accuracy. | Hatem Elalfy Walid Elsherbiny Ashraf Abdel Rahman Dina Elhammady Shaker Wagih Shaltout Ayman Z Elsamanoudy Bassem El Deek | 2016 | World Journal of Hepatology2016,8,24: | 5 |
| 5 | Numerical Simulations of the Performance of Steel Guardrails Under Vehicle Impact显示文摘Road side barriers are constructed to protect passengers and contain vehicles when a vehicle crashes into a barrier. In general, full-scale crash testing needs to be carried out if a geometrically and structurally equivalent barrier has not previously been proven to meet the requirements of containing the vehicle and dissipating sufficient impact energy for passenger protection. As full-scale crash testing is very expensive, the number of data that can be measured in a test is usually limited, and it may not always be possible to obtain good quality measurements in such a test, a reliable and efficient numerical simulation of crash testing is therefore very useful. This paper presents finite element simulations of a 3-rail steel road traffic barrier under vehicle impact. The performance levels defined in Australian Standards AS5100 Clause 10.5 for these barriers are checked. The numerical simulations show that the barrier is able to meet low performance levels. However, the maximum deceleration is higher than the acceptable limit for passenger protection. If present, a kerb launches the vehicles into the barrier, allowing for the possibility of overriding the barrier under certain circumstances, but it redirects the vehicle and reduces the incident angle, which reduces impact force on the barrier. Further investigation into all common kerb profiles on roads should be carried out, as only one kerb profile is investigated in this study. | HAO Hong DEEKS J Andrew WU Chengqing | 2008 | Transactions of Tianjin University2008,14,5: | 4 |
| 6 | Moment transfer factors for column-supported cast-in-situ hollow core slabs显示文摘Hollow core slabs are becoming of increasing interest as the construction industry attempts to minimise the impact of its activities on the environment. By forming voids in the interior of a concrete slab, the amount of concrete used can be reduced without significantly altering the capacity of the structure. In this study, we examined the inner force transfer mechanism of a column-supported cast-in-situ hollow core slab using finite element analysis. Both a hollow core slab and the corresponding solid slab were analysed using ANSYS and the results were compared. The orientation of the tube fillers causes the stiffness of the hollow slab to be orthotropic, potentially changing the distribution of load carried in the two orthogonal directions. Both the cross-section’s moments in the column strip and near the columns in the hollow core slab become larger than that in the solid floor. As well, the cross-section’s stiffness along the tube arrangement direction is larger than that of the radial cross-section, which causes the direction along the hole of the hollow core slab to carry more moment than the radial direction. The conversion factors of the two directions are proposed from the comparison for four typical areas of the hollow core slab, as are the moment distribution coefficients. | Hai-tao LI Andrew John DEEKS Li-xin LIU Dong—shengHUANG Xiao-zu SU | 2012 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2012,13,3: | 4 |
| 7 | The performance of tests of publication bias and other sample size effects in systematic reviews of diagnostic test accuracy was assessed显示文摘 | Jonathan J. Deeks Petra Macaskill Les Irwig | 2005 | Journal of Clinical Epidemiology2005,,9: | 2 |
| 8 | Analytical modeling of hammer impact for pile driving显示文摘 | Deeks A J Randolph M F | 1993 | International Journal for Numerical and Analytical Methods in Geomechanics1993,17,5: | 2 |
| 9 | Host Response to Translocated Microbial Products Predicts Outcomes of Patients With HBV or HCV Infection显示文摘 | Netanya G. Sandler Christopher Koh Annelys Roque Jason L. Eccleston Rebecca B. Siegel Mary Demino David E. Kleiner Steven G. Deeks T. Jake Liang Theo Heller Daniel C. Douek | 2011 | Gastroenterology2011,,4: | 2 |
| 10 | Polycystic ovary syndrome: a complex condition with psychological, reproductive and metabolic manifesta- tions that impacts on health across the lifespan显示文摘 | Teede H Deeks A Moran L | 2010 | BMC Med2010,30,8: | 1 |
| 11 | Second trimester serum tests for Down’s Syndrome screening显示文摘 | Alldred SK Deeks JJ Guo B | 2012 | Cochrane Database Syst Rev2012,6,00: | 1 |
| 12 | Olaparib: first global approval显示文摘 | Deeks ED | 2015 | Drugs2015,75,: | 1 |
| 13 | Axisymmetric time-domain transmitting boundaries显示文摘 | Deeks A J Randolph M F | 1994 | Journal of Engineering Mechanics1994,120,1: | 1 |
| 14 | Safinamide:first global approval显示文摘 | DEEKS ED | 2015 | Drugs2015,75,6: | 1 |
| 15 | Axisymmetric Time-domain Transmitting Boundaries 显示文摘 | Deeks A J RandolPh M F | 1994 | Journal of Engineering Mechanics ASCE1994,120,1: | 1 |
| 16 | Measuring inconsistency in metaanalyses 显示文摘 | Higgins JP Thompson SG Deeks JJ | 2003 | BMJ2003,327,7414: | 1 |
| 17 | A systematic review of rapid di- agnostic tests for the detection of tuberculosis infection 显示文摘 | Dinnes J Deeks J Kunst H | 2007 | Health Technol Asses2007,11,3: | 1 |
| 18 | Measuring incon- sistency in meta-analyses显示文摘 | Higgins JP Thompson SG Deeks JJ | 2003 | BMJ2003,327,7414: | 1 |
| 19 | Long term vibration monitoring of an RC slab : Temperature and humidity effect显示文摘 | Yong Xia Hong Hao Giovanna Zanardo Andrew Deeks | 2006 | Engineering Structures2006,,28: | 1 |
| 20 | A systematic review of rapid diagnostic tests for the detection of tuberculosis infection 显示文摘 | J Dinnes J Deeks H Kunst | 2007 | Heahh Technology Assessment2007,11,3: | 1 |