维普中文期刊产品整合服务
242篇 您的检索式:作者名="Asaad"
    题名 作者 年代 出处 被引量
1Countermeasures for local scour at offshore wind turbine monopile foundations:A review显示文摘Local scour at monopile foundations of offshore wind turbines is one of the most critical structural stability issues.This article reviews the contemporary methods of scour countermeasures at monopile foundations.These methods include armouring countermeasures(e.g.,riprap protection)to enhance the anti-scour ability of the bed materials and flow-altering countermeasures(e.g.,collars and sacrificial piles)to reduce downflow or change flow patterns around the monopiles.Stability number and size-selection equations for riprap armour layers are summarised and compared.Moreover,other alternative methods to riprap are briefly introduced and presented.A typical graph of the scour depth reduction with different collar sizes and elevations under specific test conditions is summarised and compared with a plot for a pile founded on a caisson.Reduction rates for different flow-altering countermeasures,including the collar,are listed and compared.A newly developed soil improvement method,namely microbially induced calcite precipitation(MICP),is also reviewed and introduced as a scour protection method.As a popular bio-soil treatment method,MICP has a good potential as a scour countermeasure method.Bio-soil treatment methods and traditional armouring methods are defined as active and passive soil enhancement scour countermeasures,respectively.Zi-hao Tang Bruce Melville Naresh Singhal Asaad Shamseldin Jin-hai Zheng Da-wei Guan Liang Cheng 2022Water Science and Engineering2022,15,1:4
2Study of Cystatin C as Early Biomarker of Nephropathy in Patients with Type 2 DM and Risk Stratification in Tarnaka Hospital of Hyderabad City in India显示文摘This study was done to evaluate clinical usefulness of cystatin C levels of serum and urine in predicting renal impairment in normoalbuminuric patients with type 2 diabetes and to evaluate the association between albuminuria and serum/urine cystatin C.Type 2 diabetic patients(n=200)with normoalbuminuria(n=45),microalbuminuria(n=83)and macroalbuminuria(n=42)were enrolled.Creatinine,urinary albumin levels,serum/urine cystatin C and estimated glomerular filtration rate(eGFR by MDRD(Modification of Diet in Renal Disease)and CKD-EPI(Chronic Kidney Disease Epidemiology Collaboration equations))were determined.The cystatin C levels of serum and urine increased with increasing degree of albuminuria,reaching higher levels in macroalbuminuric patients(p<0.001).In multiple regression analysis,C-reactive protein(CRP),sex,albumin-creatinine ratio(ACR)and eGFR affected serum cystatin C.Urine cystatin C was affected by triglyceride,age,eGFR and ACR.In multivariate logistic analysis,cystatin C levels of serum and urine were identified as independent factors associated with eGFR<60 mL/min/1.73 m^2 estimated by MDRD equation in patients with normoalbuminuria.On the other hand,eGFR<60 mL/min/1.73 m^2 estimated by CKD-EPI equation was independently associated with low level of high-density lipoprotein in normoalbuminuric patients.The cystatin C levels of serum and urine could be useful markers for renal dysfunction in type 2 diabetic patients with normoalbuminuria.H.A.ALsailawi Mustafa Mudhafar Alhussein Arkan Majhool Abbas Asaad 2019Journal of US-China Medical Science2019,16,5:4
3槟榔子中抗血小板聚集及抑制乙酰胆碱酯酶活性的有效成分(英文)显示文摘目的:研究槟榔子(Areca catechu)粗提取物中所含的抗血小板聚集及抑制乙酰胆碱酯酶活性的有效成分及其作用机制。方法:使用70%甲醇水溶液对槟榔子进行粗提取。使用生物发光血小板凝集仪在富血小板血浆中测定槟榔子粗提取物的抗血小板聚集作用,使用分光光度计在试管内测定槟榔子粗提取物对乙酰胆碱酯酶活性的抑制作用。检测槟榔子中的多种化合物以测定槟榔子中抗血小板聚集及抑制乙酰胆碱酯酶活性的有效成分。结果:槟榔子粗提取物能够抑制花生四烯酸、二磷酸腺苷、血小板活化因子、肾上腺素及钙离子载体引起的血小板聚集,尤其对二磷酸腺苷及钙离子载体引起的血小板聚集的抑制最为明显;槟榔子粗提取物能够显著抑制乙酰胆碱酯酶的活性。在所检测的槟榔子所含化合物中,只有儿茶素对肾上腺素引起的血小板聚集有显著的抑制作用,而这种抑制作用显著弱于槟榔子粗提取物,提示槟榔子中的其他成分参与了这种抑制作用;鞣酸、没食子酸、薯蓣皂苷元和异去甲槟榔次碱能够抑制乙酰胆碱酯酶的活性,其中鞣酸的抑制作用强于槟榔子粗提取物。结论:槟榔子中含有抗血小板聚集及抑制乙酰胆碱酯酶活性的有效成分,而发挥这些功效的确切成分有待进一步的研究证实。Muhammad Nabeel Ghayur Syed Faraz Kazim Huma Rasheed Asaad Khalid Maliha Iqbal Jumani Muhammad Iqbal Choudhary Anwarul Hassan Gilani 2011中西医结合学报2011,9,6:4
4Meta-analysis and trial sequential analysis of randomized evidence comparing general anesthesia vs regional anesthesia for laparoscopic cholecystectomy显示文摘BACKGROUND In an effort to further reduce the morbidity and mortality profile of laparoscopic cholecystectomy,the outcomes of such procedure under regional anesthesia(RA)have been evaluated.In the context of cholecystectomy,combining a minimally invasive surgical procedure with a minimally invasive anesthetic technique can potentially be associated with less postoperative pain and earlier ambulation.AIM To evaluate comparative outcomes of RA and general anesthesia(GA)in patients undergoing laparoscopic cholecystectomy.METHODS A comprehensive systematic review of randomized controlled trials with subsequent meta-analysis and trial sequential analysis of outcomes were conducted in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement standards.RESULTS Thirteen randomized controlled trials enrolling 1111 patients were included.The study populations in the RA and GA groups were of comparable age(P=0.41),gender(P=0.98)and body mass index(P=0.24).The conversion rate from RA to GA was 2.3%.RA was associated with significantly less postoperative pain at 4 h[mean difference(MD):-2.22,P<0.00001],8 h(MD:-1.53,P=0.0006),12 h(MD:-2.08,P<0.00001),and 24 h(MD:-0.90,P<0.00001)compared to GA.Moreover,it was associated with significantly lower rate of nausea and vomiting[risk ratio(RR):0.40,P<0.0001].However,RA significantly increased postoperative headaches(RR:4.69,P=0.03),and urinary retention(RR:2.73,P=0.03).The trial sequential analysis demonstrated that the meta-analysis was conclusive for most outcomes,with the exception of a risk of type 1 error for headache and urinary retention and a risk of type 2 error for total procedure time.CONCLUSION Our findings indicate that RA may be an attractive anesthetic modality for daycase laparoscopic cholecystectomy considering its associated lower postoperative pain and nausea and vomiting compared to GA.However,its associated risk of urinary retention and headache and lack of knowledge on its impact on procedure-related outcomes do not justify using RA as the first line anesthetic choice for laparoscopic cholecystectomy.Peter Asaad Adam O’Connor Shahab Hajibandeh Shahin Hajibandeh 2021World Journal of Gastrointestinal Endoscopy2021,13,5:2
5Critical review of radio-frequency(RF)heating applications in food processing显示文摘Conventional thermal treatment in food processing relies on the transfer of heat by conduction and convection.One alternative to this conventional thermal treatment is radio-frequency(RF)heating in which electromagnetic energy is transferred directly to the heated product.The longer wavelengths of RF compared with microwaves are able to penetrate further into the food products resulting in more even heating.A review of RF heating for the food processing industry is presented here with an emphasis on scientific principles and the advantages and applications of RF.Applications of RF heating include blanching,thawing,drying,and processing of foods.RF heating represents considerable potential for additional research and the transfer of technology to the food processing industry.Computer simulation can be used to improve RF heating uniformity.Moreover,the heating uniformity in the rotated eggs is greater than in the static eggs.RF has also been used to blanch vegetables to increase ascorbic acid content to achieve the highest vitamin C levels.The use of the thawing technology has resulted in better quality of treated food.There has been increased interest in the RF-drying method due to the homogeneity of heating,greater penetration depth,and more stable control of the product temperature.RF-treated meat had improved quality and coagulation with acceptable taste and appearance.In addition,RF heating is used in pasteurization of yogurt and destruction of microorganisms in liquid and solid foods.Ammar Altemimi Salah Naji Aziz Asaad R.S.Al-HiIphy Naoufal Lakhssassi Dennis G.Watson Salam A.Ibrahim 2019Food Quality and Safety2019,3,2:2
6Preparation of Fish Scales Hydroxyapatite (FsHAp) for Potential Use as Fillers in Polymer显示文摘The aims of this study were to prepare natural hydroxyapatite from fish scales(FsHAp)for potential use as a filler in polymer.The FsHAp was prepared from Tilapia fish scales using thermal method.The FsHAp was milled for 48 h and dried by spray method.The morphology was characterized using field emission scanning electron microscope(FESEM)which showed irregular shape of FsHAp particles with particle size around 7μm.The analysis of FsHAp was carried out using Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD)to confirm chemical structure of FsHAp.Alhussein Arkan Majhooll Ismail Zainol Che Nor Aiza Jaafar Mustafa Mudhafar Alsailawi H.A. Abbas Asaad Fouad WMezaal 2019Journal of Chemistry and Chemical Engineering2019,13,3:2
7On the Supersoluability of Finite Groups 显示文摘Asaad M Shaalan A 1989Sounderdruck aus Arch Math1989,53,:1
8A new coumarin from Murraya paniculata显示文摘CHOUDHARY MUHAMMAD IQBAL AZIZUDDIN KHALID ASAAD 2002Planta Medica2002,68,1:1
9On Maximal Subgroups of Finite Group 显示文摘Asaad M 1998Comm Algebra1998,26,:1
10Etiology of the resting myoelectric activity of the levator ani muscle:physioanatomic study with a new theory显示文摘Shafik A Doss S Asaad S 2003World J Surg2003,27,3:1
11Cellular interferon - gamma based assay for diagnosis of pulmonary tuberculosis显示文摘Fathy MM Asaad A Mansour M 2007Egypt J Immuno[2007,14,1:1
12Wronskian and Grammian solutions to a(3 + 1)-dimensional generalized KP equation显示文摘Ma W X Abdeljabbar A Asaad M G 2011Appl Math Comp2011,217,10:1
13Design verification via simulation and Automatic test pattern generation显示文摘ASAAD H HAYES J 1995IEEE ICCAD1995,,:1
14On the super solvability of finite groups显示文摘ASAAD M 1975Annales Univ Sci Budapest1975,,:1
15On the supersolvability of finite groups Ⅰ显示文摘Asaad N 1981Acta Math Acad Sci Hungar1981,38,:1
16On p-nilpotence and supersolvablity of finite groups显示文摘Asaad M 2006Comm Algebra2006,,34:1
17Immunohistochemical evaluation of vascular endothelial growth factor (VEGF) in colorectal carcinoma 显示文摘Abdou AG Aiad H Asaad N 2006J Egypt Natl Canc Inst2006,18,4:1
18Developmental sequelae in preterm infants having a diagnosis of bronchopulmonary dysplasia:analysis using a severity-based classification system显示文摘Short EJ Kirchner HL Asaad GR 2007Arch Pediatr Adolesc Med2007,161,11:1
19Influence ofπ-quasinormality on maximal subgroups of Fitting subgroups of a finite group显示文摘Asaad M Shaalan A 1991ArchMath1991,56,12:1
20Chelidonium majus leaves methanol extract and its chelidonine alkaloid ingredient reduce cadmium-induced nephrotoxicity in rats显示文摘KORIEM K M ARBID M S ASAAD G F 2013J Nat Med2013,67,1:1
返回顶部 每页显示:
共13页 首页 上一页 第1页 下一页 末页 /13 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费