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New discriminant-function-based multidimensional discrimination of mid-ocean ridge and oceanic plateau

Geoscience Frontiers 2020年第5期11卷 1681-1693页

作者： Surendra P.verma Lorena Diaz-Gonzalez Instituto de Energias Renovables Universidad Nacional Autonoma de MexicoPriv.Xochicalco S/no.Col.CentroApartado Postal 34TemixcoMor62580Mexico Centro de Investigacion en Ciencias Universidad Autonoma de Estado de MorelosCuernavacaMorelos62209Mexico

From a compilation of geochemical data for the discrimination of the tectonic settings of mid-ocean ridge(MOR;3730 samples)and oceanic plateau(OP;3656 samples),we present two new discriminant functions and diagrams obtained from censored multivariate discordant outlier-free *** different sets of data(original concentrations as well as isometric log-ratio transformed(ilr)variables;all 10 major(M)elements as well as all 10 major and 6 trace elements MT)were used to evaluate the quality of discrimination from linear discriminant analysis(LDA)and canonical *** selected multidimensional models ilrM(9 ilr transformed variables of multi-normally distributed 10 major elements)and ilrMT(15 ilr transformed variables of multi-normally distributed combined 10 major and 6 trace elements),considered as the best or most representative(total of5650 samples for ilrM and 2858 for ilrMT),provided percent success values,respectively,of 80.9%for the MOR and 81.1%for the OP(ilrM)and 88.5%for the MOR and 90.1%for the OP(ilrMT).Both processes(log-ratio transformation and multi-normality)rendered the percent success values similar for both groups(MOR and OP).The respective discriminant functions were successfully used for four tests from known tectonic settings and four application cases(two for ophiolites and two for Precambrian rocks),documenting thus the utility of the new discrimination procedure for the MOR and OP tectonic ***,we showed that our multidimensional procedure is robust against analytical errors or uncertainties,as well as post-emplacement compositional changes caused by element mobility from both low or high temperature *** robustness against the gain or loss of a single element at a time was also documented,from which the ilrMT model was evaluated as more robust than the ilrM model.A new online computer program MOROPdisc was written in Java Framework ZK,which is freely available for use at our web portal http://***

关键词： MORB Multivariate discordant outliers Log-ratio transformation Multidimensional discrimination Analytical uncertainties Post-emplacement changes

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Optimal generation scheduling in power system using frequency prediction through ANN under ABT environment

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Frontiers in Energy 2013年第4期7卷 468-478页

作者： Simarjit KAUR Yajvender Pal verma Sunil AGRAWAL Department of Electrical & Electronics Engineering UIET Panjab University Chandigarh 160014 India

In a competitive and deregulated power scenario, the utilities try to maintain their real electric power generation in balance with the load demand, which creates a need for the precise real time generation scheduling （GS）. In this paper, the GS problem is solved to perform the unit commitment （UC） based on frequency prediction by using artificial neural network （ANN） with the objective to minimize the overall system cost of the state utility. The introduction of availability-based tariff （ABT） signifies the importance of frequency in GS. Under- prediction or over-prediction will result in an unnecessary commitment of generating units or buying power from central generating units at a higher cost. Therefore, an accurate frequency prediction is the first step toward optimal GS. The dependency of frequency on various parameters such as actual generation, load demand, wind power and power deficit has been considered in this paper. The proposed technique provides a reliable solution for the input parameter different from the one presented in the training data. The performance of the frequency predictor model has been evaluated based on the absolute percentage error （APE） and the mean absolute percentage error （MAPE）. The proposed predicted frequency sensitive GS model is applied to the system of Indian state of Tamilnadu, which reduces the overall system cost of the state utility by keeping off the dearer units selected based on the predicted frequency.

关键词： artificial neural network (ANN) frequency prediction availability-based tariff (ABT) generation scheduling (GS)

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Acclimatization of microalgae Arthrospira platensis for treatment of heavy metals in Yamuna River

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Water Science and Engineering 2020年第3期13卷 214-222页

作者： Nilesh Kumar Shriya Hans Ritu verma Aradhana Srivastava University School of Chemical Technology Guru Gobind Singh Indraprastha UniversityNew Delhi 110078India

Bioaccumulation and biosorption in microalgae are effective approaches for the removal of heavy metals(HMs)from river *** objective of this study was to investigate the potential for use of acclimatized microalgae in the removal of HMs from the Yamuna River water as an acclimatizing *** active culture of Arthrospira platensis(***)was acclimatized to HMs up to a concentration of 100 mg/*** was gradually exposed to increasing concentrations of HMs in five subsequent batches with a step increase of 20 mg/L to acclimatize live cells in the simulated Yamuna River *** presence of high levels of HMs in the Yamuna River water caused growth *** empirical growth inhibition model was developed,and it predicted high threshold concentrations of HMs(210.7e424.5 mg/L),producing a positive specific growth rate of *** also showed high average removal efficiencies of HMs,including 74.0%for Cu,77.0%for Cd,50.5%for Ni,76.0%for Cr,76.5%for Pb,and 63.5%for Co,from HMs-enriched Yamuna River *** findings demonstrated that the maximum specific removal amounts of Cu,Cd,Ni,Cr,Pb,and Co were 54.0,58.0,39.0,62.8,58.9,and 45.3 mg/g,*** maximum yields of the value-added products chlorophyll and phycocyanin were 2.5 mg/g(in a batch of 40 mg/L for Cd)and 1054 mg/g(in a batch of 20 mg/L for Cu),***,acclimatized *** was proven to be a potential microalga not only for sequestration of HMs but also for production of valuable pigments.

关键词： Yamuna River A.platensis Heavy metals Acclimatization Biosorption Pigments

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Displacement Field due to Nonuniform Slip along a Long Dip-Slip Fault in Two Welded Half-Spaces

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Journal of Earth Science 2012年第6期23卷 864-872页

作者： Sunita Rani Neeru Bala Ram Chander verma Department of Mathematics Guru Jambheshwar University of Science and TechnologyHisar 125001India

The solution of static deformation of two homogeneous, isotropic, and perfectly elastic half-spaces in welded contact due to a long dip-slip fault with uniform slip is well known. The aim of the present article is to obtain the static deformation of two homogeneous, isotropic, and perfectly elastic half-spaces in welded contact due to nonuniform slip along a long dip-slip fault. The fault is vertical and lies entirely in the lower half-space, extending up to the interface. Four slip profiles are considered： lin- ear, parabolic, elliptic, and cubic. Closed-form expressions for the elastic residual field have been ob- tained for the different slip profiles. The displacement field due to four nonuniform slip profiles is com- pared with the displacement field due to uniform slip. For comparison, we have assumed the source potency for different slip profiles to be the same, which is achieved by taking the fault slip at the inter- face constant and varying the fault width. It is found that the displacement field varies significantly at the fault width rather than at the interface. Moreover, uniform slip along the fault makes the edges singular. This singularity at the lower edge is not present in the case of nonuniform slip along a long dip-slip fault.

关键词： nonuniform slip two welded half-spaces dip-slip fault displacement field.

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Designing of future ornamental crops: a biotechnological driven perspective

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Horticulture Research 2023年第11期10卷 253-270页

作者： Mahinder Partap Vipasha verma Meenakshi Thakur Bhavya Bhargava Floriculture Laboratory Agrotechnology DivisionCouncil of Scientific and Industrial Research(CSIR)Institute of Himalayan Bioresource Technology(IHBT)Post Box No.6176061(HP)PalampurIndia Academy of Scientific and Innovative Research(AcSIR) Ghaziabad201002Uttar PradeshIndia

With a basis in human appreciation of beauty and aesthetic values,the new era of ornamental crops is based on implementing innovative technologies and transforming symbols into tangible *** advances in plant biotechnology have attracted considerable scientific and industrial interest,particularly in terms ofmodifying desired plant traits and developing future ornamental *** utilizing omics approaches,genomic data,genetic engineering,and gene editing tools,scientists have successively explored the underlying molecular mechanism and potential gene(s)behind trait regulation such as floral induction,plant architecture,stress resistance,plasticity,adaptation,and phytoremediation in ornamental crop *** signs of progress lay a theoretical and practical foundation for designing and enhancing the efficiency of ornamental plants for a wide range of *** this review,we briefly summarized the existing literature and advances in biotechnological approaches for the improvement of vital traits in ornamental *** future ornamental plants,such as light-emitting plants,biotic/abiotic stress detectors,and pollution abatement,and the introduction of new ornamental varieties via domestication of wild species are also discussed.

关键词： crops ornamental utilizing

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Arsenic toxicity in mice and its possible amelioration

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Journal of Environmental Sciences 2004年第3期16卷 447-453页

作者： R.J.verma Archana Vasu Abdul Alim Saiyed Department of Zoology Department of ZoologyDepartment of Zoology University School of SciencesGujarat UniversityAhmedabad 380009IndiaUniversity School of SciencesGujarat UniversityAhmedabad 380009IndiaUniversity School of SciencesGujarat UniversityAhmedabad 380009India

Oral administration of arsenic trioxide(3 and 6 mg/kg body weight/d) for 30 d caused, as compared with vehicle control, dose dependent significant reductions in body weight, absolute weight, protein, glycogen, as well as, total, dehydro and reduced ascorbic acid contents both in the liver and kidney of arsenic treated mice. Succinic dehydrogenase(SDH) and phosphorylase only in the liver activities were significantly reduced in a dose dependent manner. Acid phosphatase activity was significantly decreased in the liver of low dose arsenic treated animals; however, significant rise in its activity was observed in high dose group. As compared with vehicle control, treatment also caused significant dose dependent reductions in SDH, alkaline phosphatase and acid phosphatase activities in the kidney of mice. Vitamin E cotreatment as well as, 30 d withdrawal of arsenic trioxide treatment with or without vitamin E caused significant amelioration in arsenic induced toxicity in mice. Administration of vitamin E during withdrawal of treatment also caused significant amelioration as compared from only withdrawal of the treatment. It is concluded that vitamin E ameliorates arsenic induced toxicities in the liver and kidney of mice.

关键词： arsenic toxicity mice oral administration amelioration

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Autonomous UAV 3D trajectory optimization and transmission scheduling for sensor data collection on uneven terrains

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Defence Technology（防务技术） 2023年第12期30卷 154-160页

作者： Andrey V.Savkin Satish C.verma Wei Ni School of Electrical Engineering and Telecommunications University of New South WalesSydneyAustralia Data61 CSIROCanberraACT2601Australia

This paper considers a time-constrained data collection problem from a network of ground sensors located on uneven terrain by an Unmanned Aerial Vehicle(UAV),a typical Unmanned Aerial System(UAS).The ground sensors harvest renewable energy and are equipped with batteries and data *** ground sensor model takes into account sensor data buffer and battery *** asymptotically globally optimal method of joint UAV 3D trajectory optimization and data transmission schedule is *** developed method maximizes the amount of data transmitted to the UAV without losses and too long delays and minimizes the propulsion energy of the *** developed algorithm of optimal trajectory optimization and transmission scheduling is based on dynamic *** simulations demonstrate the effectiveness of the proposed algorithm.

关键词： Unmanned aerial system UAS Unmanned aerial vehicle UAV Wireless sensor networks UAS-Assisted data collection 3D trajectory optimization Data transmission scheduling

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Preclinical investigation of the pharmacokinetics, metabolism, and protein and red blood cell binding of DRDE-07: a prophylactic agent against sulphur mustard

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Acta Pharmaceutica Sinica B 2014年第5期4卷 394-401页

作者： Pankaj verma Rajagopalan Vijayaraghavan Department of Pharmaceutics Anand College of PharmacyKeethamAgra 282007India Department of Pharmacology and Toxicology Defence Research and DevelopmentEstablishmentGwalior 474002India

DRDE-07,a newly synthesized amifostine analog currently under clinical investigation in a phase I trial,is a potent antidote against sulfur mustard *** purpose of this research was to evaluate the pharmacokinetic profile of DRDE-07 in female Swiss Albino mice after a single oral dose of 400 or 600 mg/*** physicochemical properties of DRDE-07,including solubility,pK a,Log P,plasma protein binding and plasma/blood partitioning,were determined to support the pharmacokinetic ***-07 concentration was determined by an HPLC-UV *** profile of plasma concentration versus time was analyzed using a non-compartmental *** protein binding was assessed using ***-07 appeared rapidly in plasma after oral administration with peak plasma levels(C max)observed in less than 15 *** was a rapid decline in the plasma levels followed by a smaller second peak about 90 min after *** plasma protein binding of DRDE-07 was found to be less than 25%at all concentrations *** clearance of DRDE-07 is expected to be?1.5 fold higher than the blood clearance of *** probable metabolite of DRDE-07 was identified as phenyl-S-ethyl amine.

关键词： DRDE-07 Sulfur mustard Blood–plasma partitioning Protein binding Pharmacokinetics

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Measuring tree stem diameters and straightness with depth-image computer vision

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Journal of Forestry Research 2023年第5期34卷 1395-1405页

作者： Hoang Tran Keith Woeste Bowen Li Akshat verma Guofan Shao Department of Computer Science Purdue University305 N University StWest LafayetteIN 47907USA Hardwood Tree Improvement and Regeneration Center USDA Forest ServiceNorthern Research Station715 West State StreetWest LafayetteIN 47907USA Department of Forestry and Natural Resources Purdue University715 West State StreetWest LafayetteIN 47907USA School of Electrical and Computer Engineering Purdue University610 Purdue MallWest LafayetteIN 47907USA

Current techniques of forest inventory rely on manual measurements and are slow and labor *** developments in computer vision and depth sensing can produce accurate measurement data at significantly reduced time and labor *** developed the ForSense system to measure the diameters of trees at various points along the stem as well as stem *** use,mean absolute error(MAE),and root mean squared error(RMSE)metrics were used to compare the system against manual methods,and to compare the system against itself(reproducibility).Depth-derived diameter measurements of the stems at the heights of 0.3,1.4,and 2.7 m achieved RMSE of 1.7,1.5,and 2.7 cm,*** ForSense system produced straightness measurement data that was highly correlated with straightness ratings by trained *** ForSense system was also consistent,achieving sub-centimeter diameter difference with subsequent measures and less than 4%difference in straightness value between *** method of forest inventory,which is based on depth-image computer vision,is time efficient compared to manual methods and less computationally and technologically intensive compared to Structure-from-Motion(SFM)photogrammetry and ground-based LiDAR or terrestrial laser scanning(TLS).

关键词： Forest inventory Depth sensing Computer vision Tree diameter Stem straightness Trunk volume

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SARS-CoV-2 infection in people with pre-existing liver disease:Further research is warranted

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World Journal of Gastroenterology 2021年第45期27卷 7855-7858页

作者： Henu Kumar verma LVKS Bhaskar Department of Immunopathology Institute of lungs Biology and DiseaseComprehensive Pneumology CenterNeuherberg 85764MunichGermany Zoology Guru Ghasidas VishwavidyalayaBilaspur 495001ChhattisgarhIndia

Patients with severe liver disease who have been infected with severe acute respiratory syndrome coronavirus-2(coronavirus disease 2019)frequently develop acute respiratory distress syndrome and multiple organ failure,with a high mortality rate,as a result of the hyper-proinflammatory state known as the cytokine *** must recognize cytokine storms earlier to avoid intensive care admission and multi-organ damage,a critical life-threatening condition with prognostic and therapeutic implications.

关键词： Cytokine storm Liver disease Angiotensin-converting enzyme 2 Therapeutics Inflammatory markers

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