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Earthquake Engineering and Engineering Vibration 2023年第4期22卷 1065-1080页

作者： Hassan Lak Seyed Mehdi Zahrai Seyed Mohammad Mirhosseini ehsanollah zeighami Department of Civil Engineering Collage of EngineeringArak BranchIslamic Azad UniversityArak ***Iran School of Civil Engineering College of EngineeringUniversity of TehranTehran ***Iran

Computational fluid dynamics(CFD)provides a powerful tool for investigating complicated fluid *** paper aims to study the applicability of CFD in the preliminary design of linear and nonlinear fluid viscous *** fluid viscous dampers were designed based on CFD *** first device was a linear viscous damper with straight *** second was a nonlinear viscous damper containing a one-way pressure-responsive valve inside its *** dampers were detailed based on CFD simulations,and their internal fluid flows were ***-scale specimens of both dampers were manufactured and tested under dynamic *** to the tests results,both dampers demonstrate stable cyclic behaviors,and as expected,the nonlinear damper generally tends to dissipate more energy compared to its linear *** compatibility was achieved between the experimentally measured damper force-velocity curves and those estimated from CFD *** a thermography camera,a rise in temperature of the dampers was measured during the *** was found that output force of the manufactured devices was virtually independent of temperature even during long duration ***,temperature dependence can be ignored in CFD models,because a reliable temperature compensator mechanism was used(or intended to be used)by the damper manufacturer.

关键词： fluid viscous damper passive control dynamic testing energy dissipation device computational fluid dynamic thermography

Consolidation behavior of the expansive clay treated with cement and zeolite

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Journal of Central South University 2022年第9期29卷 3140-3157页

作者： Hamed AHMADI CHENARBONI Seyed Hamid LAJEVARDI Hossein MOLAABASI ehsanollah zeighami Department of Civil Engineering Arak BranchIslamic Azad UniversityArakIran Department of Civil Engineering Gonbad Kavous UniversityGonbadGolestanIran

The expansive clays are extremely sensitive to the slight moisture alteration,exhibiting sequentially volume *** settlement of the buildings and infrastructures underlying expansive soil is a critical challenge that geotechnical engineers have to deal ***,the objective of this study is to assess the alteration in the compressibility behavior of expansive clay respecting partial replacement of cement by zeolite in cemented *** this purpose,7 and 28 d cured samples treated with 6%,8%,10%,and 12%cement addition and 0,10%,30%,50%,70%,and 90%cement replacement by zeolite were investigated through Atterberg limit and a series of one-dimensional consolidation tests to evaluate the consistency limits and compressibility *** liquid limits of the soil samples indicated a decremental trend as the cement content ***,the increase of zeolite replacement up to 30%in each specific cement content diminished liquid limit to its lowest *** increment of zeolite replacement increased the liquid limit of the soil-binder *** lowest plasticity index was also achieved at the 30%zeolite replacement percentage;hence,the lowest swelling potential would be resulted,concerning an indirect *** results of the consolidation experimentations disclosed that zeolite replacement had adverse influence on consolidation parameters of cemented samples such as compression index,swell index,coefficient of compressibility,coefficient of volume compressibility,and coefficient of consolidation after 7 d of curing whereas after 28 d of curing,the 30%zeolite-replaced samples represented the best consolidation ***,it can be stated that the addition of cement alongside the partial substitution of cement by zeolite can be a beneficial strategy for the geo-environmental targets of this study.

关键词： expansive clays cement zeolite consolidation consistency limits

Efficiency improvement by using metal–insulator‑semiconductor structure in InGaN/GaN micro‑light‑emitting diodes

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Frontiers of Optoelectronics 2024年第1期17卷 77-84页

作者： Jian Yin David Hwang Hossein Zamani Siboni ehsanollah Fathi Reza Chaji Dayan Ban Department of Electrical and Computer Engineering Waterloo Institute NanotechnologyUniversity of WaterlooWaterlooON N2L 3G1Canada Vuereal InC. 440 Philip StreetUnit 100WaterlooON N2L 5R9Canada

InGaN/GaN micro-light-emitting diodes(micro-LEDs)with a metal–insulator-semiconductor(MIS)structure on the sidewall are proposed to improve *** this MIS structure,a sidewall electrode is deposited on the insulating layer-coated sidewall of the device mesa between a cathode on the bottom and an anode on the ***(EL)measurements of fabricated devices with a mesa diameter of 10μm show that the application of negative biases on the sidewall electrode can increase the device external quantum efficiency(EQE).In contrast,the application of positive biases can decrease the *** band structure analysis reveals that the EQE is impacted because the application of sidewall electric fields manipulates the local surface electron density along the mesa sidewall and thus controls surface Shockley–Read–Hall(SRH)*** suggested strategies,reducing insulator layer thickness and exploring alternative materials,can be implemented to further improve the EQE of MIS micro-LEDs in future fabrication.

关键词： Micro-LED GaN EQE improvement Micro-fabrication

Correction:Efficiency improvement by using metal–insulator‑semiconductor structure in InGaN/GaN micro‑light‑emitting diodes

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Frontiers of Optoelectronics 2024年第1期17卷 95-99页

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons licence,and indicate if changes were *** images or other third party material in this article are included in the article’s Creative Commons licence.

关键词： Efficiency diodes Creative

Herd-prevalence of Coxiella burnetii(Q fever) antibodies in dairy cattle farms based on bulk tank milk analysis

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Asian Pacific Journal of Tropical Medicine 2011年第1期4卷 58-60页

作者： Mohammad Khalili ehsanollah Sakhaee Mohammad Reza Aflatoonian Naser Shahabi-Nejad Research Center of Tropical and Infectious Diseases Kerman University of Medical SciencesKermanIran Department of Pathobiology School of Veterinary MedicineShahid Bahonar University of KermanIran Department of Clinical Sciences School of Veterinary MedicineShahid Bahonar University of KermanIran

Objective:To determine the prevalence of Coxiella burnetii(***) antibody positive randomly selected dairy herds in southeast Iran(Kerman).Methods:Bulk tank milk samples were collected randomly from 44 sufficiently large commercial dairy herds,included near 12 000 dairy cattle,in Kerman(The largest province of Iran),southeast *** samples were tested for antibodies against *** using the commercial CHEKIT(?) Q fever antibody ELISA Test Kit(Idexx,Liebefeld-Bern,Switzerland).Results:The prevalence of positive,negative and intermediate herds were 45.4%,43.2%and 11.4%,***:The result supports the hypothesis of high prevalence and endemic pattern of Q fever in *** investigation highlights the importance of further studies on Q fever in Iran.

关键词： Q fever Coxiella burnetii Bulk tank milk Dairy cattle ELISA Iran

Studying pressure sores through illuminant invariant assessment of digital color images

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第8期11卷 598-606页

作者： Sahar MOGHIMI Mohammad Hossein MIRAN BAYGI Giti TORKAMAN ehsanollah KABIR Ali MAHLOOJIFAR Narges ARMANFARD Department of Electrical Engineering Tarbiat Modares University Department of Physical Therapy Tarbiat Modares University

Methods for pressure sore monitoring remain both a clinical and research *** methodologies could assist physicians in developing prompt and effective pressure sore *** this paper a technique is introduced for the assessment of pressure sores in guinea pigs,using captured color *** were artificially induced,utilizing a system particularly developed for this *** images were obtained from the suspicious region in days 3 and 7 post-pressure sore *** segments of the color images were divided and labeled into three classes,based on their severity *** quantitative analysis,a color based texture model,which is invariant against monotonic changes in illumination,is *** texture model has been developed based on the local binary pattern *** segments were classified,using the texture model and its features as inputs to a combination of neural *** method is capable of discriminating tissue segments in different stages of pressure sore generation,and therefore can be a feasible tool for the early assessment of pressure sores.

关键词： Local binary pattern (LBP) Automatic assessment Neural networks Color based texture model Pressure sores Digital color images

Protective effects of Cuminum cyminum *** oil on ethylene glycol induced nephrolithiasis in mice

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Journal of Coastal Life Medicine 2016年第5期4卷 403-405页

作者： ehsanollah Sakhaee Reza Kheirandish Sepideh Eshaghi Department of Clinical Sciences School of Veterinary MedicineShahid Bahonar University of KermanKermanIran Department of Pathobiology School of Veterinary MedicineShahid Bahonar University of KermanKermanIran School of Veterinary Medicine Shahid Bahonar University of KermanKermanIran

Objective:To investigate the protective effect of Cuminum cyminum(***)essential oil on ethylene glycol induced nephrolithiasis in ***:The study comprised of the following four different groups of six mice:ethylene glycol group,*** group,treatment group and normal *** levels of blood urea nitrogen and creatinine were analyzed and the kidney samples from all the animals of each group were stained with haematoxylin and ***:Treatment group revealed mild tubular degeneration without formation of calcium oxalate crystals and protein *** were no significant differences between serum levels of blood urea nitrogen and creatinine in treatment and normal ***:It seems that *** essential oil significantly decreased formation of calcium oxalate crystals and the growth of renal calculi in different parts of the tubules.

关键词： Nephrolithiasis Cuminum cyminum Mice

Seroprevalence of bovine leptospiral antibodies by microscopic agglutination test in Southeast of Iran

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Asian Pacific Journal of Tropical Biomedicine 2014年第5期4卷 354-357页

作者： Mohammad Khalili ehsanollah Sakhaee Mohammad Reza Aflatoonian Gholamreza Abdollahpour Saeed Sattari Tabrizi Elham Mohammadi Damaneh Sajad Hossini-nasab Research Center of Tropical and Infectious Diseases Kerman University of Medical Sciences Department of Pathobiology Faculty of Veterinary MedicineShahid Bahonar University of Kerman Department of Clinical Sciences Faculty of Veterinary MedicineShahid Bahonar University of Kerman Department of Clinical Sciences Faculty of Veterinary MedicineUniversity of Tehran

Objective:To evaluate serological findings of bovine leplospirosis which is a zoonotic disease with worldwide distribution caused by Leptospira ***:One hundred and sixty seven sera were collected from 9 commercial dairy herds in jiroft suburbs,from July to October *** agglutination test(MAT) was used to evaluates serological findings of bovine leplospirosis in Jiroft suburb dairy farms,Kerman province,***:Antibodies were found by MAT at least against one serovar of Leptospira interrogans in29 samples(17.36%) among 167 sera at a dilution 1:100 or higher,and Leptospira pomona was the most prevalent *** tilers against more than one serovar were detected in 6 sera of the positive ***:This study is the first report of leplospirosis in Southeast Iran and showed that Leptospira pomona was the most and Leptospira icterohaemorrhagiae the least prevalent serovars in Southeast Iran.

关键词： Bovine leptospirosis MAT Serology Iran

Detection of leptospiral antibodies by microscopic agglutination test in north-east of Iran

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Asian Pacific Journal of Tropical Biomedicine 2011年第3期1卷 227-229页

作者： ehsanollah Sakhaee Gholam Reza Abdollah pour Department of Clinical Sciences Faculty of Veterinary MedicineShahid Bahonar University of Kerman Department of Clinical Sciences Faculty of Veterinary MedicineUniversity of Tehran

Objective:To detect leptospiral antibodies by microscopic agglutination test(MAT) in northeast of ***:This study was conducted to evaluate prevalence of human leptospiral infections by *** six current reference strains of Leptospira interrogans in north-east of Iran.A total of 285 serum samples were collected from three north-east provinces of Iran,from December,2009 to June,***:Antibodies were detected at least against one serovar of Leptospira interrogans in 45 sera(15.79%) among 283 samples at a dilution 1:100 or *** titers against more than one serovar were detected in 24 sera of the positive ***, there were 75 positive reactions against different serovar of Leptospira *** titers were recorded against serovar icterohaemorrhagiae(31 samples),hardjo(26 samples), grippotyphosa(7 samples),pomona(5 samples),canicola(4 samples) and ballum(***). Conclusions:In present study the most prevalent(Leptospira icterohaemorrhagiae) and the least prevalent(Leptospira ballum) serovar are different from previous ***,species and prevalence of serovars change during the lime in one area and between regions.

关键词： Leptospirosis Microscopic agglutination test Human Iran Prevalence Leptospiral infection Serovar

血清肽水平的全基因组测序研究:社区研究的动脉粥样硬化风险

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血清肽水平的全基因组测序研究:社区研究的动脉粥样硬化风险