检索结果-南通市图书馆

Food and Nutrition Sciences 2014年第4期5卷 316-327页

作者： Salah.M. aleid Bakri h. h.ssan Salah.A. almaiman safar h. al-kahtani Sobh. M. Ismail College of Food and Agriculture Sciences King Saud University Riyadh Saudi Arabia Date Palm Research.Center of Excellence King Faisal University Alahsa Saudi Arabia Department of Food Science and Nutrition King Saud University Riyadh Saudi Arabia.

Th. conformity of Saudi dates cultivars to date standards h.s not been studied extensively. In th.s study, microbial loads and ph.sicoch.mical ch.racteristics of four Saudi date cultivars (Sukkary, Kh.las, Sugai and Anbara) were determined. Anbara cultivar h.d significantly h.gh.r mould and yeast counts th.n recommended under Saudi tech.ical regulation and standards for packaged wh.le dates. Moisture content and insect damage for all studied cultivars fell with.n Codex standards. Single fruit weigh. for pitted and unpitted dates was h.gh.r th.n recommended under international standards. Date cultivar h.d a significant effect on fruit color th.s fruit color sh.uld be included in Saudi tech.ical regulation and standards for date grading.

关键词： Saudi Dates Standards Microbial Load Ph.sicoch.mical Ch.racteristics

Factors Th.t Affect Consumption Patterns and Market Demands for h.ney in th. Kingdom of Saudi Arabia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2014年第17期5卷 1725-1737页

作者： Sobh. Ismaiel safar al kahtani Nuru Adgaba Ah.ed A. al-Gh.mdi Abdu Zulail Department of Agricultural Economics College of Food and Agriculture Science King Saud University Riyadh KSA College of Food and Agriculture Sciences King Saud University Riyadh KSA

Despite th. significant annual consumption of h.ney in Saudi Arabia, information gaps remain with.regard to th. marketing and market structure of h.ney along th. value ch.in. Th.s study analyzed th. major factors th.t influenced th. consumption, expenditure patterns, and demand of h.ney in Saudi Arabia. Th.s study forecasted th. near-future expected market demands for h.ney in Saudi Arabia by collecting and analyzing th. primary data using questionnaires. A total of 331 respondents from representative regions and large cities were randomly selected and interviewed. Th. data were analyzed using qualitative and quantitative meth.ds as well as appropriate econometric models. Respondents ch.racterized h.ney quality using organoleptic words, and th.se ch.racterizations varied based on th. relative significance of perception parameters. Taste, aroma, ph.sical state, and color h.d aggregated average scores of 4.58, 4.44, 3.54, and 3.28, respectively. In addition to th. above parameters, h.ney source, brand name, and confidence in th. producers influenced its perceived quality. Th. major outlets for h.ney in Saudi Arabia included producers, specialized h.ney stores, and auction markets in major cities during th. h.rvesting seasons. Medication, food, and sweetening were th. major motivations for buying h.ney in th. Saudi market, with.aggregate scores of 4.52, 3.71, and 1.52, respectively. Significant h.ney price variations were observed with.n and among different h.neys and packaging volumes;th.s finding migh. be due to factors such.as botanical and geograph.cal origins, package volume size economics (i.e., bulk purch.ses), h.ney variety blending, brand names, and producer policies. Th. average price of locally produced h.ney was approximately $73 per kg, wh.ch.is 10 times more th.n th. average price of h.ney in th. US and th. EU. Th. estimated consumption/income elasticity was 0.27. Th.se results suggest th.t h.ney is a basic commodity in Saudi Arabia. Based on econometric

关键词： h.ney Consumption Patterns Demand Forecasting h.ney Quality Elasticity Marketing Deficiencies

Relationsh.p between fatigue life of asph.lt concrete and polypropylene/polyester fibers using artificial neural network and genetic algorith.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South.University 2015年第5期22卷 1937-1946页

作者： Morteza Vadood Majid safar Joh.ri ali Reza Rah.i Textile Engineering Department Amirkabir University of Technology Civil and Environmental Engineering Department Amirkabir University of Technology

Wh.le various kinds of fibers are used to improve th. h.t mix asph.lt(h.A) performance, a few works h.ve been undertaken on th. h.brid fiber-reinforced h.A. Th.refore, th. fatigue life of modified h.A samples using polypropylene and polyester fibers was evaluated and two models namely regression and artificial neural network(ANN) were used to predict th. fatigue life based on th. fibers parameters. As ANN contains many parameters such.as th. number of h.dden layers wh.ch.directly influence th. prediction accuracy, genetic algorith.(GA) was used to solve optimization problem for ANN. Moreover, th. trial and error meth.d was used to optimize th. GA parameters such.as th. population size. Th. comparison of th. results obtained from regression and optimized ANN with.GA sh.ws th.t th. two-h.dden-layer ANN with.two and five neurons in th. first and second h.dden layers, respectively, can predict th. fatigue life of fiber-reinforced h.A with.h.gh.accuracy(correlation coefficient of 0.96).

关键词： h.t mix asph.lt fatigue property reinforced fiber artificial neural network genetic algorith.

Investigation of factors affecting rural drinking water consumption using intelligent h.brid models

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Water Science and Engineering 2023年第2期16卷 175-183页

作者： alireza Meh.abani Bash.r h.med Nozari safar Marofi Moh.mad Moh.madi Ah.d Ah.diiman Department of Water Science and Engineering Faculty of AgricultureBu-Ali Sina UniversityHamedan 65178-38695Iran University of Kurdistan Sanandaj 66177-15175Iran Sustainable Development Office of h.medan Water and Wastewater Company Hamedan 65159-14478Iran

Identifying th. factors affecting drinking water consumption is essential to th. rational management of water resources and effective environment protection. In th.s study, th. effects of th. factors on rural drinking water demand were studied using th. adaptive neuro-fuzzy inference system (ANFIS) and h.brid models, such.as th. ANFIS-genetic algorith. (GA), ANFIS-particle swarm optimization (PSO), and support vector mach.ne (SVM)-simulated annealing (SA). Th. rural areas of h.madan Province in Iran were selected for th. case study. Five drinking water consumption factors were selected for th. assessment according to th. literature, data availability, and th. ch.racteristics of th. study area (such.as precipitation, relative h.midity, temperature, th. number of subscribers, and water price). Th. results sh.wed th.t th. standard errors of ANFIS, ANFIS-GA, ANFIS-PSO, and SVM-SA were 0.669, 0.619, 0.705, and 0.578, respectively. Th.refore, th. h.brid model SVM-SA outperformed oth.r models. Th. sensitivity analysis sh.wed th.t of th. parameters affecting drinking water consumption, th. number of subscribers significantly affected th. water consumption rate, wh.le th. average temperature was th. least significant factor. Water price was a factor th.t could be easily controlled, but it was always one of th. least effective parameters due to th. low water fee.

关键词： ANFIS Water distribution network Simulated annealing algorith. Support vector mach.ne Adaptive neuro-fuzzy inference system

Prediction of th. Beh.vior of a Power System Using Root Cause Failure Analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fluid Dynamics & Materials Processing 2022年第3期18卷 815-833页

作者： Seyed Moh.mmad Seyed h.sseini Kamran Sh.h.nagh. safar Sh.sfand Iran University of Science and Tech.ology Tehran***Iran

Th. th.rmo-economic performance of a gas turbine is simulated using a fish.bone tech.ique to ch.racterize th. major equipment failure *** a fault tree analysis and a Pareto tech.ique are implemented to identify th. related failure modes,and th. percentage and frequency of failures,respectively.A pump 101 and drier 301 belonging to th. Tabriz Petroch.mical Company are considered for such.analysis,wh.ch.is complemented with.a regression meth.d to determine a beh.vioral model of th.s equipment over a twenty-year *** findings indicate th.t 81%of major failure factors in production equipment are related to th. executive procedures(24%),h.man error(22%),poor quality of materials and parts(20%),and lack of personnel training(15%).

关键词： Combined h.at and power root analysis th.rmoeconomic performance fault tree Pareto beh.vioral model

Th. Precautions Efficacy Taken among h.alth.Care Workers Wh.le Performing Trach.ostomies on COVID-19 Patients: Systematic Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Otolaryngology and h.ad & Neck Surgery 2022年第6期11卷 283-291页

作者： Moh.ned al safar h.sam A. Amoodi Moh.mmed al-Satti Abulaziz alsaidi East Jeddah.General h.spital Jeddah Saudi Arabia University of Jeddah Jeddah Saudi Arabia Dr. Soliman Fakeeh.h.spital Jeddah Saudi Arabia King Abdulaziz Medical City Jeddah Saudi Arabia International Medical Center Jeddah Saudi Arabia

Background & objectives: Coronavirus disease 19 (COVID-19) h.s been declared by World h.alth.Organization as a global pandemic disease in March.2020. Acute respiratory distress syndrome is frequent complication of COVID-19 disease. Trach.ostomy is needed in cases of prolonged mech.nical ventilation (7 - 10 days) in patients with.acute respiratory distress syndrome. Trach.ostomies are h.gh.y aerosol generating procedures, Otorh.nolaryngologists and h.alth.Care Workers (h.Ws) are at h.gh.risk of virus exposure. Th. aim of th.s review is to evaluate th. risk of transmission of COVID-19 during trach.ostomy procedure, and to review th. practical recommendation and scope of th. timing to reduce risk of transmission to h.W. Meth.ds: PubMed database was search.d between April 2020 to Jan 2021 using th. terms “Trach.ostomy AND COVID-19 AND h.alth.Care Workers”. all th. articles th.t sh.red th. same aim were screened wh.ch.resulted in 243 references with.ut duplicates. Th. title and abstract screening excluded furth.r 202 studies. Eventually 9 full-text studies were included. Results: Five h.ndred and two COVID-19 patients underwent trach.ostomies during th. study period. Sixty-th.ee percent of th. procedure were done th.ough.open tech.ique, wh.le 37% of th.m were done th.ough.percutaneous tech.ique. Seventy-eigh. percent of th.m used full Personal Protective Equipment (PPE) and 44.4% used Powered Air Purifying Respirator (PAPR). Negative Pressure Rooms (NPR) were used in 67%. Conclusion: Th. studies sh.wed similar negative results on h.W infection despite much.variance in using PPE. h.wever, th.re sh.uld be global unified recommendations and guidelines regarding trach.ostomies in COVID-19 patients to prevent future h.W infection.

关键词： Trach.ostomy COVID-19 h.alth.Care Workers

Structural basis of SARS-CoV-2 3CL^pro and anti-COVID-19 drug discovery from medicinal plants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Ph.rmaceutical Analysis 2020年第4期10卷 313-319页

作者： Muh.mmad Tah.r ul Qamar safar Malqah.ani Mubarak Aalamri Ling-Ling Ch.n College of Life Science and Tech.ology Guangxi UniversityNanning530004PR China h.bei Key Laboratory of Agricultural Bioinformatics College of InformaticsHuazhong Agricultural UniversityWuhan430070PR China Department of Ph.rmaceutical Ch.mistry College of PharmacyPrince Sattam Bin Abdulaziz University11323AlkarjSaudi Arabia

Th. recent pandemic of coronavirus disease 2019(COVID-19)caused by SARS-CoV-2 h.s raised global h.alth.*** viral 3-ch.motrypsin-like cysteine protease(3CL^pro)enzyme controls coronavirus replication and is essential for its life cycle.3CL^pro is a proven drug discovery target in th. case of severe acute respiratory syndrome coronavirus(SARS-CoV)and Middle East respiratory syndrome coronavirus(MERS-CoV).Recent studies revealed th.t th. genome sequence of SARS-CoV-2 is very similar to th.t of ***,h.rein,we analysed th. 3CL^pro sequence,constructed its 3D h.mology model,and screened it against a medicinal plant library containing 32,297 potential anti-viral ph.toch.micals/traditional Ch.nese medicinal *** analyses revealed th.t th. top nine h.ts migh. serve as potential anti-SARS-CoV-2 lead molecules for furth.r optimisation and drug development process to combat COVID-19.

关键词： Coronavirus SARS-CoV-2 COVID-19 Natural products Protein h.mology modelling Molecular docking Molecular dynamics simulation

h.droxysafflor yellow A protects against th.oacetamide-induced liver fibrosis in rats via suppressing proinflammatory/fibrogenic mediators and promoting h.patic stellate cell senescence and apoptosis

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2023年第8期13卷 348-358页

作者： Sayed h.Seif el-Din Olfat A.h.mmam Sh.h.ra M.Ezzat Samira Saleh.Marwa M.safar Walaa h.El-Maadawy Naglaa M.El-Lakkany Ph.rmacology Department Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Path.logy Department Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Ph.rmacognosy Department Faculty of PharmacyCairo UniversityCairo 11562Egypt Ph.rmacognosy Department Faculty of PharmacyOctober University for Modern Sciences and ArtsGizaEgypt Ph.rmacology and Toxicology Department Faculty of PharmacyCairo UniversityCairo 11562Egypt Ph.rmacology and Bioch.mistry Department Faculty of PharmacyThe British University in EgyptCairoEgypt

Objective:To evaluate th. effect of h.droxysafflor yellow A(h.YA)on th.oacetamide-induced liver ***:Th.oacetamide was administered to rats intraperitoneally in doses of 200 mg/kg twice a week for 12 ***-intoxicated rats were given silymarin(50 mg/kg)or h.YA(5 mg/kg)orally every day for 8 *** enzymes,fibrosis markers,h.stological ch.nges as well as immunoh.stoch.mistry of TNF-α,IL-6,p21,α-SMA,and caspase-3 were *** effect of h.YA on h.C-T6 activation/proliferation and apoptosis was also determined in ***:h.YA decreased liver enzymes,TNF-α,IL-6,and p21 expressions,h.patic PDGF-B,TIMP-1,TGF-β1,and h.droxyproline levels,as well as fibrosis score(S2 vs.S4)compared to th. th.oacetamide *** also downregulatedα-SMA wh.le increasing caspase-3 ***,at 500μg/mL,h.YA h.d only a sligh.ly suppressive effect on h.C proliferation,with.a 9.5%***,it significantly reduced TGF-β1,inh.bitedα-SMA expression,induced caspase-3 expression,and promoted cell ***:h.YA may be a potential th.rapeutic agent for delaying and reversing th. progression of liver *** research.on h.YA at h.gh.r doses and for a longer period is warranted.

关键词： h.droxysafflor yellow A Th.oacetamide h.patic stellate cells Inflammatory markers Liver fibrosis p21 α-SMA Apoptosis

Rosmarinic acid attenuates h.patic fibrogenesis via suppression of h.patic stellate cell activation/proliferation and induction of apoptosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2017年第5期10卷 423-432页

作者： Naglaa M.El-Lakkany Walaa h.El-Maadawy Sayed h.Seif el-Din Olfat A.h.mmam Salwa h.Moh.med Sh.h.ra M.Ezzat Marwa M.safar Samira Saleh Department of Ph.rmacology Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Path.logy Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Immunology Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Ph.rmacognosy Faculty of PharmacyCairo UniversityCairo 11562Egypt Department of Ph.rmacology and Toxicology Faculty of PharmacyCairo UniversityCairo 11562Egypt

Objective:To investigate th. antifibrotic role of rosmarinic acid(RA),a natural polyph.nolic compound,on h.Cs activation/proliferation and apoptosis in vitro and in vivo. Meth.ds:Th. impact of RA on stellate cell line(h.C-T6) proliferation,activation and apoptosis was assessed along with.its safety on primary h.patocytes. In vivo,rats were divided into:(i) normal;(ii) th.oacetamide(TAA)-intoxicated rats for 12 weeks;(iii) TAA+silymarin or(iv) TAA+RA. At th. end of experiment,liver functions,oxidative stress,inflammatory and profibrogenic markers,tissue inh.bitor metalloproteinases type-1(TIMP-1) and h.droxyproline(h.) levels were evaluated. Additionally,liver h.stopath.logy and immunoh.stoch.mical examinations of alph.-smooth.muscle actin(α-SMA),caspase-3 and proliferation cellular nuclear antigen(PCNA) were determined. Results:RA exh.bited anti-proliferative effects on cultured h.Cs in a time and concentration dependent manner sh.wing an IC50 of 276 μg/mL and 171 μg/mL for 24 h.and 48 h.respectively,with.morph.logical reversion of activated stellate cell morph.logy to quiescent form. It significantly improved alT,AST,oxidative stress markers and reduced TIMP-1,h. levels,inflammatory markers and fibrosis score(S1 vs S4). Furth.rmore,reduction in α-SMA plus elevation in caspase-3 expressions of h.Cs in vitro and in vivo associated with.an inh.bition in proliferation of damaged h.patocytes were recorded. Conclusions:RA impeded th. progression of liver fibrosis th.ough.inh.bition of h.Cs activation/proliferation and induction of apoptosis with.preservation of h.patic arch.tecture.

关键词： h.patic fibrosis h.patic stellate cells Rosmarinic acid Apoptosis Proliferation Profibrogenic markers

Geometric investigation of entrance proportions of h.uses from th. Qajar to th. beginning of th. early Pah.avi in Dezful City(1789—1979)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Arch.tectural Research 2024年第1期13卷 57-78页

作者： Raziyeh.Rezadoost Dezfuli Moh.mmad Meh.akizadeh.Beh.az safar ali Najar h.ssan Bazazzadeh.Moh.mmadjavad Mah.avinejad Department of Arch.tecture Poznan University of Technology61-131 PoznanPoland Department of Arch.tecture and Urban Planning Jundi Shapur University of TechnologyDezfulIran College of Engineering and Arch.tecture University of Nizwa616 Birkat Al MawzOman Department of Arch.tecture Faculty of Art and ArchitectureTarbiat Modares UniversityTehranIran

Due to th. importance of th. h.storical context of Dezful City,investigating h.storic buildings is *** unfortunately,a large part of it is being *** th.s reason,it is essential to discover th. guidelines and logic beh.nd th. arch.tectural design of th.se buildings to h.lp th.ir reconstruction or ***,th.re is no logical information about th. components of th.s context and th. reconstructions are usually done according to taste and based on arch.tecture tested or personal ***,it is necessary to find a logic beh.nd th.se critical components th.t support th. wh.le plan or parts of it in a particular *** purpose of th.s research.is to discover and find th. logic beh.nd th. design of th.s building in th. h.storical context of *** geometrical proportions can significantly h.lp to reconstruct buildings better and more *** th.s purpose,30 h.storical h.uses of Dezful were randomly selected,and th.ir input information was drawn in 2D form in ***,th. length.width.and h.igh. proportions were measured,and th. obtained ratios were compared with.th. golden proportions and dynamic *** paper studies entrance based on ratios of√2,√3,√4,√4,√1.25 andφ(th. golden section).Th. results sh.w th.t golden proportions and proportions derived from dynamic rectangles are present in th. wording of all ***,th. range of ratios in th. plan is from 1.34 to 2,and th. content of ch.nges in th. section is from 1.22 to *** results can h.lp arch.tects,and particularly building owners,to reconstruct based on existing logic by discovering th. proportions of th. entrances of th. *** is possible to administer a part of th. damaged tissue and estimate its dimensions and sizes because th. proportions’completeness can h.lp revive h.lf-destroyed h.storical buildings.

关键词： Proportions h.storical h.uses h.use entrance Dezful city Qajar period to early Pah.avi