检索结果-南通市图书馆

Hepatoprotective effect of leaf extracts from Citrus hystrix and *** against paracetamol induced liver injury in rats

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2015年第1期4卷 35-41页

作者： arumugam Abirami Gunasekaran Nagarani Perumal Siddhuraju Bioresource Technology Lab School of Life SciencesDepartment of Environmental SciencesBharathiar UniversityCoimbatore 641046Tamil NaduIndia

The present investigation is aimed to evaluate the hepatoprotective effects of Citrus hystrix and Citrus maxima(Red and White variety)methanolic leaf extracts on paracetamol induced *** extracts were given in the dose of 200 mg/kg body weight for 7 days and toxicity was induced by paracetamol(2 g/kg)on day ***(100 mg/kg body weight)was used as reference *** the 7th day animals were sacrificed and liver function markers(ALT,AST,ALP),total bilirubin and total protein in blood serums and hepatic antioxidants(SOD,CAT,GSH and GPx)in liver homogenate were *** leaf extracts restored the liver function markers and hepatic antioxidants to the normal level than elevated levels noticed on paracetamol control at P<*** of hepatoarchitecture has also been *** present study shows that *** and *** leaf extracts possess hepatoprotective action against paracetamol induced hepatotoxicity.©2015 Beijing Academy of Food *** and hosting by Elsevier *** rights reserved.

关键词： Citrus hystrix Citrus maxima Paracetamol Silymarin Hepatoprotection

In vitro antioxidant,anti-diabetic,cholinesterase and tyrosinase inhibitory potential of fresh juice from Citrus hystrix and *** fruits

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2014年第1期3卷 16-25页

In the present study,antioxidant potential,α-amylase,α-glucosidase,cholinesterase and tyrosinase inhibitory activity of fresh juice from indigenous fruits of Citrus hystrix and ***(Red&White var.)were investigated using an in vitro *** contents of total phenolics,tannins,and total flavonoids ranged between 836.90 and 909.52 mg gallic acid equivalent(GAE)/L,333.33 and 523.21 mg gallic acid equivalent(GAE)/L and 224.88 and 262.22 mg rutin equivalent/L,*** antioxidant activity of fresh juice was evaluated by employing different in vitro assays such as reducing power assay,DPPH•,ABTS•+and•OH radical scavenging capacities,peroxidation inhibition activity,antihemolytic *** addition,75.55%–79.75%ofα-amylase and 70.68%–72.83%ofα-glucosidase enzyme inhibition characteristics were found under in vitro starch digestion ***,all the juice samples exhibited excellent tyrosinase(76.95%–80.79%),acetylcholinesterase(75.71%–79.74%)andβ-glucuronidase inhibitory activity(68.13%–69.38%).These results indicated that fresh juice of *** and ***(Red&White var.)could be used as a source of antioxidant agents,functional food and nutraceuticals.©2014 Beijing Academy of Food *** and hosting by Elsevier *** rights reserved.

关键词： Citrus fruits Fresh juice Antioxidant potential Enzymatic inhibitory activity Nutraceuticals

A comparative study on antioxidant potentials,inhibitory activities against key enzymes related to metabolic syndrome,and anti-inflammatory activity of leaf extract from different Momordica species

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2014年第1期3卷 36-46页

作者： Gunasekaran Nagarani arumugam Abirami Perumal Siddhuraju Bioresource Technology Lab School of Life SciencesDepartment of Environmental SciencesBharathiar UniversityCoimbatore 641046Tamil NaduIndia

Momordica species are vegetable crops widely distributed in warmer regions of the *** this work,we describe the antioxidant,enzyme inhibitory and anti-inflammatory effects of the leaves from three different species of *** present investigation was initially carried out to explore the possible link between antioxidant,enzyme inhibitory property of Momordica leaf extract and their total phenolic and flavonoid *** anti-inflammatory activity was tested by using carrageenan-induced paw *** results illustrated an enhanced antioxidant power of wild species comparable with a commercial *** addition,the leaf extract of ***(200 mg/kg)presented a significant anti-inflammatory activity toward carrageenan-induced paw edema in Wistar rats in comparison to indomethacin(10 mg/kg).The contents of flavonoids and total phenolic compounds could be correlated with the antioxidant and enzymes inhibition *** major bioactive compounds of phenolic acids and flavonoids such as gallic acid,chlorogenic acid,caffeic acid,ferulic acid,ellagic acid,catechin,rutin,and quercetin were *** findings suggest that wild Momordica species contains higher potential antioxidant and anti-inflammatory activities than a commercial variety does,which could be tested as drug candidates against oxidative and inflammation-related pathological processes.©2014 Beijing Academy of Food *** and hosting by Elsevier *** rights reserved.

关键词： Momordica Antioxidant In vitro antidiabetic Cholinesterase Anti-inflammatory

Ferromagnetic–paramagnetic transition temperature in bulk and nanostructured La_(0.7)Sr_xCa_(0.3-x)MnO_3(x=0.10, 0.15, and 0.20) manganite materials

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2017年第6期36卷 501-511页

作者： Somasundaram Praveen Kumar Kathiresan Sakthipandi Ramamurthy Gayathiri Mathu Sridhar Panday arumugam Karthik Venkatachalam Rajendran Centre for Nano Science and Technology K.S. Rangasamy College of Technology Anna University Research and Development Centre Bharathiar University

Series of bulk and nanostructured La0.7SrxCa0.3-xMnO3（x = 0.10, 0.15, and 0.20） manganites were synthesized and characterized using different techniques. In the series, both the bulk and nanostructured La0.7Sr0.10Ca0.20MnO3 and La0.7Sr0.20Ca0.10MnO3 manganites have orthorhombic and rhombohedral structures, whereas La0.7Sr0.15Ca0.15MnO3 manganite has rhombohedral and orthorhombic structures, respectively. Online ultrasonic velocity and attenuation measurements were taken through an indigenously designed ultrasonic setup, and the analysis was done from 300 to 400 K during the aging of the samples to explore the structural/phase transitions. The bulk and nanocrystalline La0.7SrxCa0.3-xMnO3 perovskite samples show the particle size distribution in the range of 197-943 and 24-93 nm, respectively. The addition of Sr^2＋ alters the size of particles, which decrease in size. The observed anomaly in ultrasonic velocities, attenuations, and elastic moduli is correlated with the ferromagnetic-paramagnetic（FM-PM） transition temperature（TC） in both bulk and nanocrystalline perovskites. In addition, the shift in TC and the magnitude and width of observed anomaly are correlated with the value of x to study the behavior of TC.

关键词： Magnetic material Ultrasonic measurements Elastic properties Phase transition

Food prospects and nutraceutical attributes of Momordica species:A potential tropical bioresources–A review

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2014年第3期3卷 117-126页

作者： Gunasekaran Nagarani arumugam Abirami Perumal Siddhuraju Bioresource Technology Lab Department of Environmental SciencesSchool of Life SciencesBharathiar UniversityCoimbatore 641046Tamil NaduIndia

Plants with potential therapeutic values have been used from time immemorial to cure various ailments and infectious *** late,scientific evidences have been provided on the potential therapeutic agent exhibited by certain traditionally used vegetable *** importance of wild edible plants may be traced to antiquity but systemic studies are *** the Momordica species have been consumed as vegetable and traditionally used for various *** whole plant parts are ascribed to possess the anti-diabetic effect in traditional medicinal *** active constituents of Momordica plant parts were cucurbitane type triterpenoids,phenolics,glycosides,and several kinds of peptides including Momordica anti-HIV protein(MAP 30).Recent reports revealed the presence of several kinds of cucurbitane type triterpenoids in leaf,stem and fruits of Momordica species having several pharmacological *** is lack of scientific information available on the wild species which also having several bioactive components with potential *** the present review compares and highlights the current knowledge of the nutritional value,phytochemistry and physiological effects of wild species with known variety.

关键词： Momordica spp. Anti-diabetic Triterpenoids Momordica anti-HIV protein(MAP-30 protein)

Solid-state ionic materials for critical applications

在线全文

学校读者我要写书评

暂无评论

Journal of Materiomics 2019年第2期5卷 147-148页

作者： Yunhui Huang arumugam Manthiram B.V.R.Chowdari Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai201804China Materials Science and Engineering Program&Texas Materials Institute The University of Texas at AustinAustinTX78712USA Department of Physics Solid State Ionics&Advanced Batteries LabNational University of Singapore117542Singapore

Solid-state ionics is a subdiscipline concerning the theory and application of solid-state ionic conductors,which covers several fields such as solid-state physics,solid-state chemistry,electrochemistry and solid-state ***,the corresponding materials play critical roles in various devices based on solid-state *** recent years,solid-state ionic materials have attracted more attention due to their extensive applications in portable electronics,electric vehicles,large-scale energy storage,etc..In order to exhibit the recent developments on solid-state ionics,we organize a special issue on solid-state ionic materials in the Journal of *** issue includes a broad range of topics like electrode materials,separators and solid-state electrolytes used in Li-ion based batteries,proton conduction in proton exchange membrane fuel cells(PEMFCs),electrodes and membranes used in solid oxide fuel cells(SOFCs),carbon-based micro-supercapacitors,sensors and photocatalysis.

关键词： state critical Solid

Performance prediction of switched reluctance generator with time average and small signal models

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

Frontiers in Energy 2013年第1期7卷 56-68页

作者： Jyoti KOUJALAGI B. UMAMAHESWARI R. arumugam Department of Electrical Engineering Dr. Ambedkar Institute of Technology Bangalore 560056 India Department of Electrical Engineering CEG Campus Anna University Chennai 600025 India Department of Electrical Engineering SSN Engineering of CollegeChennai 603110 India

This paper presents the complete mathematical model and predicts the performance of switched reluctance generator with time average and small signal models. The complete mathematical model is developed in three stages. First, a switching model is developed based on quasi-linear inductance profile. Next, based on the switching behaviour, a time average model is obtained to measure the difference between the excitation and generation time in each switching cycle. Finally, to track control voltage and current wave shapes, a small signal model is designed. The effectiveness of the complete multilevel model combining electrical machine, power converter, load and control with programming language is demonstrated through simulations. A PI controller is used for controlling the voltage of the generator. The results presented show that the controller exhibits accurate tracking control of load voltage under different operating conditions. This demonstrates that the proposed model is able to perform an accurate control of the generated output voltage even in transient situations. The simulation is performed to choose the control parameters and study the performance of switched reluctance generator prior to its actual implementation. Initial experimental results are presented using NI-Data acquisition card to control the output power according to load requirements.

关键词： generator reluctance switching model small signal model time average model

Adaptive and scalable load balancing for metadata server cluster in cloud-scale file systems

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

Frontiers of Computer Science 2015年第6期9卷 904-918页

作者： Quanqing xu Rajesh Vellore arumugam Khai Leong YONG Yonggang WEN Yew-Soon ONG Weiya XI Data Storage Institute Agency for Science Technology and Research Singapore 138632 Singapore School of Computer Engineering Nanyang Technological University Singapore 639798 Singapore

Big data is an emerging term in the storage indus- try, and it is data analytics on big storage, i.e., Cloud-scale storage. In Cloud-scale （or EB-scale） file systems, load bal- ancing in request workloads across a metadata server cluster is critical for avoiding performance bottlenecks and improv- ing quality of services. Many good approaches have been pro- posed for load balancing in distributed file systems. Some of them pay attention to global namespace balancing, making metadata distribution across metadata servers as uniform as possible. However, they do not work well in skew request dis- tributions, which impair load balancing but simultaneously increase the effectiveness of caching and replication, in this paper, we propose Cloud Cache （C2）, an adaptive and scal- able load balancing scheme for metadata server cluster in EB-scale file systems. It combines adaptive cache diffusion and replication scheme to cope with the request load balanc- ing problem, and it can be integrated into existing distributed metadata management approaches to efficiently improve their load balancing performance. C2 runs as follows： 1） to run adaptive cache diffusion first, if a node is overloaded, load- shedding will be used; otherwise, load-stealing will be used; and 2） to run adaptive replication scheme second, if there is a very popular metadata item （or at least two items） causing a node be overloaded, adaptive replication scheme will be used,in which the very popular item is not split into several nodes using adaptive cache diffusion because of its knapsack prop- erty. By conducting performance evaluation in trace-driven simulations, experimental results demonstrate the efficiency and scalability of C2.

关键词： metadata management load balancing adaptivecache diffusion adaptive replication cloud-scale file systems

Optical Field Confinement Enhanced Single ZnO Microrod UV Photodetector

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2017年第7期34卷 283-286页

作者：魏铭徐春祥秦飞飞 arumugam Gowri Manohari 卢俊峰祝秋香 State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Nanjing 210096

ZnO microrods are synthesized using the vapor phase transport method, and the magnetron sputtering is used to decorate the A1 nanoparticles （NPs） on a single ZnO microrod. The micro-PL and I-V responses are measured before and after the decoration orAl NPs. The FDTD stimulation is also carried out to demonstrate the optical field distribution around the decoration of Al NPs on the surface of a ZnO microrod. Due to an implementation of AI NPs, the ZnO microrod exhibits an improved photoresponse behavior. In addition, AI NPs induced localized surface plasmons （LSPs） as well as improved optical field confinement can be ascribed to an enhancement of ultraviolet （UV） response. This research provides a method for improving the responsivity of photodetectors.

关键词： ZnO Optical Field Confinement Enhanced Single ZnO Microrod UV Photodetector UV