检索结果-南通市图书馆

China Ocean Engineering 2021年第5期35卷 662-675页

作者： Prashant KUMAR Prachi PRIYA rajni Department of Applied Sciences National Institute of Technology DelhiDelhi 110040India Jindal Global Business School O P Jindal Global UniversitySonipatHaryana 131001India

A mathematical model has been developed to analyze the influence of extreme water waves over multiconnected regions in Visakhapatnam Port,India by considering an average water depth in each multiconnected *** addition,partial reflection of incident waves on coastal boundary is also *** domain of interest is divided mainly into two regions,i.e.,open sea region and harbor region namely as Region-I and Region-II,***,Region-II is divided into multiple connected *** 2-D boundary element method(BEM)including the Chebyshev point discretization is utilized to solve the Helmholtz equation in each region separately to determine the wave *** numerical convergence is performed to obtain the optimum numerical accuracy and the validation of the current numerical approach is also conducted by comparing the simulation results with existing *** four key spots based on the moored ship locations in Visakhapatnam Port are identified to perform the numerical *** wave amplification at these locations is estimated for monochromatic incident waves,considering approximate water depth and different reflection coefficients on the wall of port under the resonance *** addition,wave field analysis inside the Visakhapatnam Port is also conducted to understand resonance *** current numerical model provides an efficient tool to analyze the amplification on any realistic ports or harbors.

关键词： boundary element method amplification factor Helmholtz equation reflection coefficient Visakhapatnam Port

A Modified Proximity Approach in the Fusion of Heavy Ions

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2010年第11期27卷 43-46页

作者： Ishwar Dutt rajni Bansal Department of Physics Panjab University Chandigarh-160014 India

By using a suitable set of the surface energy coefficient, nuclear radius, and universal function, the original proximity potential 1977 is modified. The overestimate of the data by 4% reported in the literature is significantly reduced. Our modified proximity potential reproduces the experimental data nicely compared to its older versions.

关键词： Nuclear physics

Mathematical Modeling of Moored Ship Motion in Arbitrary Harbor utilizing the Porous Breakwater

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Ocean Engineering 2023年第5期37卷 738-752页

作者： Prachi Priya Prashant Kumar Gulshan rajni Government Model Sanskriti Senior Secondary School Ganaur Sonipat 131101India Department of Applied Sciences(Mathematics) National Institute of TechnologyDelhi 110036India JindalGobal Business School O.P.Jindal Global UniversitySonepat 131001India

The motion of the moored ship in the harbor is a classical hydrodynamics problem that still faces many challenges in naval operations,such as cargo transfer and ship pairings between a big transport ship and some small ships.A mathematical model is presented based on the Laplace equation utilizing the porous breakwater to investigate the moored ship motion in a partially absorbing/reflecting *** motion of the moored ship is described with the hydrodynamic forces along the rotational motion(roll,pitch,and yaw)and translational motion(surge,sway,and heave).The efficiency of the numerical method is verified by comparing it with the analytical study of Yu and Chwang(1994)for the porous breakwater,and the moored ship motion is compared with the theoretical and experimental data obtained by Yoo(1998)and Takagi et al.(1993).Further,the current numerical scheme is implemented on the realistic Visakhapatnam Fishing port,India,in order to analyze the hydrodynamic forces on moored ship motion under resonance *** model incorporates some essential strategies such as adding a porous breakwater and utilizing the wave absorber to reduce the port’s *** has been observed that these tactics have a significant impact on the resonance inside the port for safe maritime ***,the current numerical model provides an efficient tool to reduce the resonance within the arbitrarily shaped ports for secure anchoring.

关键词： boundary element method Laplace equation porous breakwater partially reflecting/absorbing harbor wall moored ship motion

Optimal Eighth Order Convergent Iteration Scheme Based on Lagrange Interpolation

在线全文

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sinica 2017年第4期33卷 1093-1102页

作者： rajni SHARMA Ashu BAHL Department of Applied Sciences D.A.V. Institute of Engineering and Technology Kabir Nagar Jalandhar 144008 India Research Scholar I.K. Gujral Punjab Technical University Jalandhar-Kapurthala Highway Kapurthala-144601 Punjab India Department of Mathematics D.A.V. College Jalandhar 144008 India

In this paper, based on fourth order Ostrowski method, we derive an optimal eighth order iteration scheme for obtaining simple roots of nonlinear equations using Lagrange interpolation and suitable weight functions. The scheme requires three evaluations of the function and one evaluation of the first derivative per iteration. Numerical examples are included to confirm the theoretical results and to show the competitive performance of the proposed iteration scheme.

关键词： nonlinear equations Ostrowski method Lagrange interpolation order of convergence efficiencyindex

A new lignan rhamnoside from Bauhinia retusa seed pods(Caesalpiniaceae)

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2011年第9期22卷 1081-1083页

作者： Sushma Semwal rajni Kant Sharma Department of Chemistry HNB Garhwal Central University SrinagarUttarakhandIndia Department of Chemistry University of Cape TownCape TownRondebosch 7701South Africa

A new lignan rhamnoside identified as 2,6-di（4＇,5＇-dihydroxyphenyl）-3,7-dioxabicyclo[3.3.0]octane-1-hydroxy-5-O-rhamnopyranoside （1） has been isolated from the ethanolic extract of seed pods of Bauhinia retusa. ... 详细信息

关键词： Bauhinia retusa Caesalpiniaceae Lignan rhamnoside

Renal gluconeogenesis in insulin resistance:A culprit for hyperglycemia in diabetes

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2021年第5期12卷 556-568页

作者： rajni Sharma Swasti Tiwari Department of Molecular Medicine and Biotechnology Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow 226014India

Renal gluconeogenesis is one of the major pathways for endogenous glucose *** in this process may contribute to hyperglycemia in cases with insulin resistance and *** reviewed pertinent studies to elucidate the role of renal gluconeogenesis regulation in insulin resistance and diabetes.A consensus on the suppressive effect of insulin on kidney gluconeogenesis has started to build ***-resistant models exhibit reduced insulin receptor(IR)expression and/or post-receptor signaling in their kidney *** IR expression or post-receptor signaling can cause impairment in insulin’s action on kidneys,which may increase renal gluconeogenesis in the state of insulin *** is now established that the kidney contributes up to 20%of all glucose production via gluconeogenesis in the post-absorptive ***,the rate of renal glucose release excessively increases in *** rise in renal glucose release in diabetes may contribute to fasting hyperglycemia and increased postprandial glucose *** glucose release by the kidneys and renal expression of the gluconeogenic-enzyme in diabetic rodents and humans further point towards the significance of renal ***,the available literature suggests that impairment in renal gluconeogenesis in an insulinresistant state may contribute to hyperglycemia in type 2 diabetes.

关键词： Renal gluconeogenesis Insulin-resistance Insulin Insulin receptor signaling Diabetes Gluconeogenic enzymes

A new flavone C-glucoside from Glycosmis arborea(Rutaceae)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2010年第12期21卷 1443-1445页

作者： rajni Kant Sharma Sushma Semwal Devendra Singh Negi Department of Chemistry HNB Garhwal Central University SrinagarUttarakhandIndia Department of Chemistry University of Cape TownCape TownRondebosch 7701South Africa

A new C-glycosyl flavone 7,4＇-dihydroxy-5-methoxyflavone-6-C-β-D-glucopyranoside 1 has been isolated and characterized form ethanolic extract of leaves part of Glycosmis *** structure of compound was verified by mea... 详细信息

关键词： Glycosmis arborea Rutaceae Flavone C-glucoside

Mortalin imaging in normal and cancer cells with quantum dot immuno conjugates

在线全文

学校读者我要写书评

暂无评论

Cell Research 2003年第6期13卷 503-507页

作者： ZEENIA kaul,TOMOKO YAGUCHI,SUNIL C kaul,TAKASHI HIRANO,RENU WADHWA,KAZUNARI TAIRA National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki3058562 Japan

Quantum dots are the nanoparticles that are recently emerging as an alternative to organic fluorescence probes in cell biology and biomedicine, and have several predictive advantages. These include their i) broad absorption spectra allowing visualization with single light source, ii) exceptional photo-stability allowing long term studies and iii) narrow and symmetrical emission spectrum that is controlled by their size and material composition. These unique properties allow simultaneous excitation of different size of quantum dots with a single excitation light source, their simultaneous resolution and visualization as different colors. At present there are only a few studies that have tested quantum dots in cellular imaging. We describe here the use of quantum dots in mortalin imaging of normal and cancer cells. Mortalin staining pattern with quantum dots in both normal and cancer cells mimicked those obtained with organic florescence probes and were considerably stable.

关键词： quantum dots immunofluorescence mortalin visualization.

Estrogen receptor expression in chronic hepatitis C and hepatocellular carcinoma pathogenesis

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2017年第37期23卷 6802-6816页

作者： Janaki K Iyer Mamta Kalra Anil kaul Mark E Payton Rashmi kaul Department of Biochemistry and Microbiology Oklahoma State University-Center for Health Sciences Department of Natural Sciences Northeastern State University Immatics US Inc Health Care Administration Oklahoma State University-Center for Health Sciences Department of Statistics Oklahoma State University

AIM To investigate gender-specific liver estrogen receptor(ER) expression in normal subjects and patients with hepatitis C virus(HCV)-related cirrhosis and hepatocellular carcinoma(HCC).METHODS Liver tissues from normal donors and patients diagnosed with HCV-related cirrhosis and HCV-related HCC were obtained from the NIH Liver Tissue and Cell Distribution System. The expression of ER subtypes, ERα and ERβ, were evaluated by Western blotting and real-time RT-PCR. The subcellular distribution of ERα and ERβ was further determined in nuclear and cytoplasmic tissue lysates along with the expression ofinflammatory [activated NF-κB and IκB-kinase(IKK)] and oncogenic(cyclin D1) markers by Western blotting and immunohistochemistry. The expression of ERα and ERβ was correlated with the expression of activated NF-κB, activated IKK and cyclin D1 by Spearman's correlation. RESULTS Both ER subtypes were expressed in normal livers but male livers showed significantly higher expression of ERα than females(P < 0.05). We observed significantly higher m RNA expression of ERα in HCV-related HCC liver tissues as compared to normals(P < 0.05) and ERβ in livers of HCV-related cirrhosis and HCV-related HCC subjects(P < 0.05). At the protein level, there was a significantly higher expression of nuclear ERα in livers of HCV-related HCC patients and nuclear ERβ in HCV-related cirrhosis patients as compared to normals(P < 0.05). Furthermore, we observed a significantly higher expression of phosphorylated NF-κB and cyclin D1 in diseased livers(P < 0.05). There was a positive correlation between the expression of nuclear ER subtypes and nuclear cyclin D1 and a negative correlation between cytoplasmic ER subtypes and cytoplasmic phosphorylated IKK in HCV-related HCC livers. These findings suggest that dysregulated expression of ER subtypes following chronic HCVinfection may contribute to the progression of HCVrelated cirrhosis to HCV-related *** Gender differences were observed in ER

关键词： Estrogen receptor α Estrogen receptor β Hepatitis C virus-related cirrhosis Hepatitis C virusrelated hepatocellular carcinoma Sex and gender Normal liver