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Chinese Annals of Mathematics,Series B 2015年第5期36卷 645-658,642页

作者： Amit acharya Xiaohan ZHANG Carnegie Mellon University

A mathematical theory of time-dependent dislocation mechanics of unrestricted geometric and material nonlinearity is reviewed. Within a "small deformation" setting, a suite of simplified and interesting models consisting of a nonlocal Ginzburg Landau equation, a nonlocal level set equation, and a nonlocal generalized Burgers equation is *** the finite deformation setting, it is shown that an additive decomposition of the total velocity gradient into elastic and plastic parts emerges naturally from a micromechanical starting point that involves no notion of plastic deformation but only the elastic distortion,material velocity, dislocation density and the dislocation velocity. Moreover, a plastic spin tensor emerges naturally as well.

关键词：速度梯度 Ginzburg-Landau方程位错动力学位错运动广义Burgers方程分解模型加性

Novel anticancer agents from plant sources

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中国天然药物 2013年第1期11卷 16-23页

作者： Shah Unnati Shah Ripal acharya Sanjeev acharya Niyati Pioneer Pharmacy Degree College Vadodara-390019 India Sun Pharma Advanced Research Centre Vadodara-390020 India ~nstitute of Pharmacy Nirma University Sarkhej-Gandhinagar Highway Ahmedabad-382481 India

植物仍然是新药，新药领先和新化学实体的重要来源。植物基于的药发现主要导致了 anticancer 和反传染的代理人的发展，并且继续在临床的试用贡献新领先。自然产品药在药品的照顾起一个主导的作用。几导出植物的混合物成功地当前在癌症... 详细信息

植物仍然是新药，新药领先和新化学实体的重要来源。植物基于的药发现主要导致了 anticancer 和反传染的代理人的发展，并且继续在临床的试用贡献新领先。自然产品药在药品的照顾起一个主导的作用。几导出植物的混合物成功地当前在癌症治疗被采用。有为药的进一步的改进和开发学习的导出植物的细胞毒素的自然产品的许多类。从关于植物 antitumor 代理人的研究导出的新 anticancer 药将连续地被发现。这评论的基本目的是从药用的植物探索最新发现的 anticancer 混合物的潜力，作为为 anticancer 药开发的领先。在地球附近为研究人员和科学家从他们探索植物并且为新药发现的药用的价值将是有用的。

关键词： Cancer Anticancer agents Medicinal plants

Underlying solvent-based factors that influence permanent porosity in porous liquids

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Nano Research 2022年第4期15卷 3533-3538页

作者： Hamidreza Mahdavi Huacheng Zhang Lauren K.Macreadie Cara M.Doherty Durga acharya Stefan J.DSmith Xavier Mulet Matthew R.Hill Department of Chemical Engineering Monash UniversityClaytonVIC 3800Australia CSIRO Manufacturing Private Bag 10Clayton SouthVIC 3169Australia School of Chemistry University of SydneySydney 2006Australia

Porous liquids(PLs)offer the potential to combine the ready handling and mature industry status of liquid absorbents,with the high permanent porosity of metal organic *** be functional,these nanocomposites need to satisfy a number of performance parameters,such as stability and viscosity of the porogen-solvent combination,avoiding solvent penetration into metal organic framework(MOF)pores,suitable capacities,and kinetics for gas *** this work,we systematically investigate the component materials to elucidate the parametric space where stable photoluminescence(PL)can be *** this situation,deeper conclusions were able to be drawn with regard to the influence of hydrophobicity/philicity on the properties of the resulting *** imidazolate frameworks(ZIFs)were combined with a range of solvents varying in steric bulk,to deliver CO_(2)sorption capacities as high as 4.2 mmol·g^(-1)at 10 *** findings may have broader implications for future investigations of this tantalising field of nanocomposites.

关键词： zeolitic imidazolate frameworks porous liquids permanent porosity gas sorption

Adsorption kinetics of the herbicide safeners,benoxacor and furilazole,to activated carbon and agricultural soils

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Journal of Environmental Sciences 2020年第3期32卷 23-34页

作者： Saraswati Poudel acharya Jacob Johnson Jennifer Weidhaas Civil and Environmental Engineering University of UtahSalt Lake CityUTUSA Center for Science and Mathematics Education University of Utah155 South 1452 EastSalt Lake CityUT 84112USA

Chloroacetamide herbicides,namely acetochlor and metolachlor,are common herbicides used on corn and soybean *** safeners,namely benoxacor and furilazole,are commonly used in formulations containing chloroacetamide *** reports on adsorption of chloroacetamide herbicides are available,yet little information exists regarding adsorption potential of co-applied ***,the adsorption and desorption characteristics of selected herbicide safeners to granular activated carbon(GAC) and in agricultural soils are ***,soil column studies were performed to understand the leaching behaviour of the herbicide Dual II *** sorption experiments of safeners to three agricultural soils and one GAC showed that adsorption was best fitted by the Freundlich *** Freundlich adsorption constant,Kf,for benoxacor and furilazole sorption onto three agricultural soils ranged from0.1 to 0.27 and 0.1 to 0.13(mg/g) x(mg/L)(1/n),*** Kf for benoxacor and furilazole to GAC was 6.4 and 3.4(mg/g) x(mg/L)(1/n),respectively,suggesting more favorable sorption of benoxacor to GAC than furilazole to *** sorption to soils was reversible as almost 40%-90% of both safeners was desorbed from three *** results were validated in four replicated soil column studies,where S-metolachlor was shown to leach similarly to the safener benoxacor,originating from the herbicide *** leaching of S-metolachlor and benoxacor was influenced by soil ***,these results show that safeners will move through the environment to surface waters similarly to the active ingredients in herbicides,but may be removed during drinking water treatment via GAC.

关键词： Herbicide safener Dual Ⅱ magnum Adsorption Granular activated carbon Soil column transport

Evaluating Kombucha and Fruit Juice Blends for a 5-Log Reduction of Acid-Adapted Escherichia coli O157

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Food and Nutrition Sciences 2022年第7期13卷 638-648页

作者： Sujan acharya Brian A. Nummer Department of Nutrition Dietetics and Food Science Utah State University Logan UT USA

This study examined the survival of acid-adapted E. coli O157 in kombucha during fermentation and refrigerated kombucha mixed with fruit juices. Acidic and non-acidic kombucha mixes were fermented at 25°C using a commercially available starter culture and inoculated with a 5-strain mixture of acid-adapted E. coli O157. There was >5-log reduction in the pathogen count for both starter mixes within 7 days of fermentation. For the kombucha-juice blends at refrigerated temperature, 14 ml of lemon, apple, orange, and mango juices were mixed with 186 ml kombucha separately. The treatments were inoculated with a 5-strain mixture of acid-adapted E. coli O157 and incubated at 5°C for 14 days. >5-log reduction in the pathogen count was observed in lemon, control, and mango juice blend after 1, 3, and 14 days, respectively. The total reduction in pathogen count in the apple and orange juice blend after 14 days was 4.43 and 4.12 log CFU/ml, respectively. The inability of the kombucha fruit blend to cause a 5-log reduction of E. coli O157 suggests the need for following strict hygienic and good sanitation practices during blending and bottling for home fermenters and an approved HACCP plan for foodservice operators to ensure product safety.

关键词： Kombucha Fermentation Kombucha-Fruit Blend Refrigeration Acid-Adapted E coli O157

Analysis and characterization of wind-solar-constant torque spring hybridized model

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Frontiers in Energy 2014年第3期8卷 279-289页

作者： Shantanu acharya Subhadeep BHATTACHARJEE Department of Electrical Engineering National Institute of Technology Agartala Tripura 799055 India

Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stifling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

关键词： hybrid vertical axis wind turbine Stirlingengine solar-thermal energy wind energy constant torquespring

Effective Return rate Prediction of Blockchain Financial Products Using Machine Learning

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Computers, Materials & Continua 2023年第1期74卷 2303-2316页

作者： K.Kalyani Velmurugan Subbiah Parvathy Hikmat A.M.Abdeljaber T.Satyanarayana Murthy Srijana acharya Gyanendra Prasad Joshi Sung Won Kim PG and Research Department of Computer Science Marudupandiyar College(Affiliated to Bharathidasan UniversityTiruchirappalli)Thanjavur613403India Department of Electronics and Communication Engineering Kalasalingam Academy of Research and EducationKrishnankoil626126TamilnaduIndia Department of Computer Science Faculty of Information TechnologyApplied Science Private UniversityAmmanJordan Department of Information Technology Chaitanya Bharathi Institute of TechnologyHyderabadTelangana500075India Department of Convergence Science Kongju National UniversityGongju32588Korea Department of Computer Science and Engineering Sejong UniversitySeoul05006Korea Department of Information and Communication Engineering Yeungnam UniversityGyeongsan-siGyeongbuk-do38541Korea

In recent times,financial globalization has drastically increased in different ways to improve the quality of services with advanced *** successful applications of bitcoin Blockchain(BC)techniques enable the stockholders to worry about the return and risk of financial *** stockholders focused on the prediction of return rate and risk rate of financial ***,an automatic return rate bitcoin prediction model becomes essential for BC financial *** newly designed machine learning(ML)and deep learning(DL)approaches pave the way for return rate predictive *** study introduces a novel Jellyfish search optimization based extreme learning machine with autoencoder(JSO-ELMAE)for return rate prediction of BC financial *** presented JSO-ELMAE model designs a new ELMAE model for predicting the return rate of financial ***,the JSO algorithm is exploited to tune the parameters related to the ELMAE model which in turn boosts the classification *** application of JSO technique assists in optimal parameter adjustment of the ELMAE model to predict the bitcoin return *** experimental validation of the JSO-ELMAE model was executed and the outcomes are inspected in many *** experimental values demonstrated the enhanced performance of the JSO-ELMAE model over recent state of art approaches with minimal RMSE of 0.1562.

关键词： Financial products blockchain return rate prediction model machine learning parameter optimization

Evaluation of flow characteristics in an onshore horizontal separator using computational fluid dynamics

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Journal of Ocean Engineering and Science 2020年第3期5卷 261-268页

作者： Tathagata acharya Lucio Casimiro Department of Physics and Engineering California State UniversityBakersfield9001 Stockdale HighwayBakersfieldCA 93311United States

In the petrochemical industry,separation of oil from water is a very important *** produce mixtures of gas,oil,and water which undergo a primary stage of separation inside horizontal gravity *** performance of these vessels is evaluated by measuring mean residence time(MRT)and residence time distribution(RTD).Although many researchers studied flow characteristics in horizontal separators,limited number of articles exist that discuss separator MRT and RTD with varying *** this article,the authors study an experiment using a horizontal gravity separator by previous researchers and perform computational fluid dynamics(CFD)simulations on the same geometry under similar *** simulation results show qualitative agreement with the experiments by previous *** shown by experiments before,CFD results showed that MRT of the organic phase increased with increase in *** addition,the RTD characteristics show very similar trends between CFD and experimental results.

关键词： Multiphase separators Computational fluid dynamics Mean residence time Residence time distribution

Importance of the reputation of data manager in the acceptance of connected vehicles

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Communications in Transportation Research 2022年第1期2卷 24-32页

作者： Sailesh acharya Michelle Mekker Department of Civil and Environmental Engineering Utah State UniversityLoganUT84322-4110USA

With the known evidence that potential connected vehicle(CV)users are worried about sharing data because of the associated data privacy and security issues,this study investigates the importance of the reputation of the data manager(who collects,stores,and owns the data)of CV technology(CVT).Based on a questionnaire survey of 2400 US adults,this study asserts that the data manager's reputation has a significant impact on the public perception of data privacy and security issues in CVT along with overall CV *** results show that data privacy issues have a more negative impact on CV acceptance than data security *** addition,the reputation of a data manager has a bigger role in the eyes of the public in shaping their perception of data privacy in comparison to data *** on the results,the public considers data privacy as the responsibility of the data manager to protect their data from unauthorized/illegal third-party access,whereas data security is the technological strength of CVT to protect the data from ***,it is recommended that CV stakeholders take actions to improve potential CV users'confidence in the privacy of data shared by disclosing the data management process,data privacy protection efforts,building public trust in the data manager,and introducing/enforcing laws regarding data privacy protection.

关键词： Connected vehicle Data privacy Data security Reputation Data manager Acceptance

Effect of tool rotational speed on the particle distribution in friction stir welding of AA6092/17.5 SiCp-T6 composite plates and its consequences on the mechanical property of the joint

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Defence Technology（防务技术） 2020年第2期16卷 381-391页

作者： Uttam acharya Barnik Saha Roy Subhash Chandra Saha Department of Mechanical Engineering National Institute of Technology AgartalaBarjalaJiraniaWest Tripura799046India

This study investigates the effect of tool rotational speed(TRS)on particle distribution in nugget zone(NZ)through quantitative approach and its consequences on the mechanical property of friction stir welded joints of AA6092/17.5 SiCp-T6 composite.6 mm thick plates are welded at a constant tool tilt angle of 2°and tool traverse speed of 1 mm/s by varying the TRS at 1000 rpm,1500 rpm and 2000 rpm with a taper pin profiled *** analysis shows large quantity of uniformly shaped smaller size SiC particle with lower average particle area which are homogeneously distributed in the *** fragmentation of bigger size particles has been observed because of abrading action of the hard tool and resulting shearing effect and severe stress generation due to the rotation of *** particles occupy maximum area in the matrix compared to that of the base material(BM)due to the redistribution of broken particles as an effect of *** migration of particles towards the TMAZ-NZ transition zone has been also encountered at higher TRS(2000 rpm).The microhardness analysis depicts variation in average hardness from top to bottom of the NZ,minimum for 1500 rpm and maximum for 2000 *** impact strength at 1000 rpm and 1500 rpm remains close to that of BM(21.6 J)while 2000 rpm shows the accountable *** maximum joint efficiency has been achieved at 1500 rpm(84%)and minimum at 1000 rpm(68%)under tensile *** analysis shows mixed mode of failure for BM,1000 rpm and 1500 rpm,whereas 2000 rpm shows the brittle mode of failure.

关键词： Friction stir welding Aluminium matrix composite Tool rotational speed Particle distribution Mechanical property