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Lubrication of Asymmetric Rollers Using Roelands Viscosity–Pressure-Temperature Relationship

Frontiers in Heat and Mass Transfer 2023年第1期21卷 385-405页

作者： Swetha Lanka venkata subrahmanyam sajja Dhaneshwar Prasad Department of Engineering Mathematics Koneru Lakshmaiah Education FoundationAndhra PradeshGuntur522502India Department of Mathematics Kanchi Mamunivar Government Institute for Post Graduate Studies and ResearchPuducherry605008India

An attempt is made to analyse some lubrication characteristics of rigid cylindrical asymmetric rollers under adiabatic and isothermal boundaries with rolling and sliding motion lubricated by a non-Newtonian incompressible Bingham plastic fluid under the behaviour of line *** the lower surface is considered to move quicker than that of the upper surface;and the Roelands viscosity model is considered and assumed to depend upon the fluid pressure and the mean film *** governing equations for fluid flow such as equations of motion with continuity and the momentum energy equation are solved using Runge-Kutta forth order and MATLAB is employed to solve these *** graphs and tables for Newtonian and non-Newtonian fluids,the several crucial bearing characteristics including velocity,pressure,viscosity,mean temperature,load and traction are examined and a significant change is observed among *** findings presented here are qualitatively consistent with the existing literature.

关键词： Non-Newtonian incompressible Bingham plastic hydrodynamic lubrication roelands viscosity

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Evaluation of Efficacy and Safety of Low- Dose Azathioprine Therapy for the Induction of Remission in Steroid- Dependent Inflammatory Bowel Disease (IBD) Patients and Analyzing Its Cost-effectiveness

Evaluation of Efficacy and Safety of Low- Dose Azathioprine ...

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作者： sajja Shrestha 昆明医科大学

学位级别：硕士

Background:Inflammatory Bowel Disease （IBD） is a group of non- specific chronic, inflammatory disease of the gastrointestinal tract, including Ulcerative Colitis （UC） and Crohn’s disease （CD）;are the two primary types of IBD. The two diseases share many clinical, patho genetic, and epidemiological characteristic, suggesting that underlying causes may be similar and both share same drugs in their management. While the etiology has remained unknown, several areas of possible importance, such as genetic, infectious, immunologic and inflammatory factors may play the role. The incidence and prevalence rates for Asian population;affecting IBD are much lower in comparison. But more recent data;however, have shown significantly higher rates in Asians, may be due to westernization of lifestyle, including changes in dietary habits and environmental changes and industrialization. The last few decades have seen a gradual increase in the number of drugs available for the use in the treatment of IBD. Among them;Immunomodulator therapy;which includes Azathioprine and 6-Mercaptopurine remains the mainstay of therapy for the maintenance of a steroid-free remission in patients with IBD. The aim of this study is to evaluate the efficacy and safety in the patients with IBD treated with Azathioprine and follow up in our clinic at the interval of 3mnths,6mnths,1 year and 2 year consecutatively and also assessing its adverse-effect. Hospitalization accounts for 50%-60% of total medical costs and economic burden of patients in relapse is 3-9 times higher for patients in remission. On the other hand;we try to evaluate that the use of AZA reduce resource consumption, including hospitalization, surgery, diagnostic endoscopic procedure and out-patient visits and presenting the possibility of using AZA might prove to be a cost-effective *** 1 Evaluation of Efficacy and Safety of Low-dose Azathioprine Therapy for the Induction of Remission in Steroid-dependent Inflammatory Bowel Disease

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Rapid generation advance(RGA) in chickpea to produce up to seven generations per year and enable speed breeding

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The Crop Journal 2020年第1期8卷 164-169页

作者： Srinivasan Samineni Madhuparni Sen Sobhan Bsajja Pooran MGaura International Crops Research Institute for the Semi-Arid Tropics(ICRISAT) PatancheruTelangana 502324India The UWA Institute of Agriculture University of Western AustraliaPerthWA 6009Australia

This study was aimed at developing a protocol for increasing the number of generation cycles per year in chickpea(Cicer arietinum L.).Six accessions,two each from early(JG 11 and JG 14),medium(ICCV 10 and JG 16),and late(CDC-Frontier and C 235)maturity groups,were *** experiment was conducted for two years under glasshouse *** photoperiod was extended to induce early flowering and immature seeds were germinated to further reduce generation cycle *** to control,artificial light caused a reduction in flowering time by respectively 8–19,7–16,and 11–27 days in early-,medium-,and late-maturing *** earliest stage of immature seed able to germinate was 20–23 days after anthesis in accessions of different maturity *** time period between germination and the earliest stage of immature seed suitable for germination was considered one generation cycle and spanned respectively 43–60,44–64,and 52–79 days in early-,medium-,and late-maturing ***,the late-maturing accession CDCFrontier could not be advanced further after three generation cycles owing to the strong influence of photoperiod and *** mean total number of generations produced per year were respectively 7,6.2,and 6 in early-,medium-,and late-maturing *** results have encouraging implications for breeding programs:rapid progression toward homozygosity,development of mapping populations,and reduction in time,space and resources in cultivar development(speed breeding).

关键词： Photoperiod Immature seeds Flowering Rapid generation turnover Speed breeding

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高压对NiCr—NiCu热电偶的温度影响

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应用科学学报 1992年第2期10卷 137-140页

作者：黄桐凯顾锦模 Ch.sajja dAhmad 金汴骏上海科学技术大学

在室温和液氮温度下,压强在0—20kbar(1bar=10~5Pa)变化范围内,测量了NiCr-NiCu热电偶的压力热电势随压强的变化关系.测量结果表明:在室温和液氮温度下,压力热电势均随压强增高,在0.1K的温度测量精度、0—20kbar的压强范围内,压力热电... 详细信息

在室温和液氮温度下,压强在0—20kbar(1bar=10~5Pa)变化范围内,测量了NiCr-NiCu热电偶的压力热电势随压强的变化关系.测量结果表明:在室温和液氮温度下,压力热电势均随压强增高,在0.1K的温度测量精度、0—20kbar的压强范围内,压力热电势不会对温度测量带来影响.

关键词：热电偶温度测量高压低温

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新型糖皮质激素在炎症性肠病治疗中有效性和安全性的研究现状(英文)

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昆明医科大学学报 2014年第6期35卷 167-173,180页

作者：艾佳黄奇缪应雷昆明医科大学第一附属医院消化内科云南昆明650032

炎症性肠病包括溃疡性结肠炎和克罗恩病,全世界约有2 500 000人患有此病.其病因可能是基因易感人群对肠道菌群的免疫应答失调.传统糖皮质激素能有效诱导活动期疾病缓解,但同时伴有诸多全身副作用.新型糖皮质激素如布地奈德和倍氯米松,... 详细信息

炎症性肠病包括溃疡性结肠炎和克罗恩病,全世界约有2 500 000人患有此病.其病因可能是基因易感人群对肠道菌群的免疫应答失调.传统糖皮质激素能有效诱导活动期疾病缓解,但同时伴有诸多全身副作用.新型糖皮质激素如布地奈德和倍氯米松,粘膜吸收、灭活迅速,起效快,抗炎作用强且全身副作用少.这些新型制剂口服后被小肠的吸收,特异地释放于肠道粘膜,发挥其强大的抗炎作用.就新型糖皮质激素在炎症性肠病治疗中的有效性和安全性做简要评估和总结.

关键词：炎症性肠病溃疡性结肠炎克罗恩病系统激素糖皮质激素布地奈德倍氯米松

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Relationships of hospitalization outcomes and timing to endoscopy in non-variceal upper gastrointestinal bleeding:A nationwide analysis

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World Journal of Gastrointestinal Endoscopy 2023年第4期15卷 285-296页

作者： Simcha Weissman Muhammad Aziz Ayrton I Bangolo Dean Ehrlich Arnold Forlemu Anthony Willie Manesh K Gangwani Danish Waqar Hannah Terefe Amritpal Singh Diego MC Gonzalez Jayadev sajja Fatma L Emiroglu Nicholas Dinko Ahmed Mohamed Mark A Fallorina David Kosoy Ankita Shenoy Anvit Nanavati Joseph D Feuerstein James H Tabibian Department of Internal Medicine Palisades Medical CenterNorth BergenNJ 07047United States Department of Gastroenterology University of Toledo Medical CenterToledoOH 43614United States Division of Digestive Diseases David Geffen School of Medicine at University of California at Los AngelesLos AngelesCA 90095United States Department of Internal Medicine Creighton University School of MedicinePhoenixAZ 85012United States Division of Gastroenterology Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA 02215United States Division of Gastroenterology Department of MedicineOlive View-University of California at Los Angeles Medical CenterSylmarCA 91342United States

BACKGROUND The optimal timing of esophagogastroduodenoscopy(EGD)and the impact of clinico-demographic factors on hospitalization outcomes in non-variceal upper gastrointestinal bleeding(NVUGIB)remains an area of active *** To identify independent predictors of outcomes in patients with NVUGIB,with a particular focus on EGD timing,anticoagulation(AC)status,and demographic *** A retrospective analysis of adult patients with NVUGIB from 2009 to 2014 was performed using validated ICD-9 codes from the National Inpatient Sample *** were stratified by EGD timing relative to hospital admission(≤24 h,24-48 h,48-72 h,and>72 h)and then by AC status(yes/no).The primary outcome was all-cause inpatient *** outcomes included healthcare *** Of the 1082516 patients admitted for NVUGIB,553186(51.1%)underwent *** mean time to EGD was 52.8 ***(<24 h from admission)EGD was associated with significantly decreased mortality,less frequent intensive care unit admission,shorter length of hospital stays,lower hospital costs,and an increased likelihood of discharge to home(all with P<0.001).AC status was not associated with mortality among patients who underwent early EGD(aOR 0.88,P=0.193).Male sex(OR 1.30)and Hispanic(OR 1.10)or Asian(aOR 1.38)race were also independent predictors of adverse hospitalization outcomes in *** Based on this large,nationwide study,early EGD in NVUGIB is associated with lower mortality and decreased healthcare usage,irrespective of AC *** findings may help guide clinical management and would benefit from prospective validation.

关键词： Upper gastrointestinal bleeding Esophagogastroduodenoscopy Outcomes Mortality Anticoagulation

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