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Hydrogeomorphological Study in Bamanghaty Subdivision of Mayurbhanj District, Odisha an Integrated remote Sensing and GIS Approach

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International Journal of Geosciences 2017年第11期8卷 1361-1373页

作者： Debabrata nandi Pramod Chandra Sahu Shreerup Goswami Department of remote Sensing and GIS North Orissa University Odisha India Department of Geology MPC Autonomous Colleges Baripada Odisha India Department of Earth Science Sambalpur University Sambalpur Odisha India

remote Sensing (rS) and geographic information system (GIS) are now very essential tools for efficient planning and management and handling a range of data simultaneously in a time- and cost-efficient manner for targeting of groundwater, which assists in measuring, monitoring, and conserving groundwater resources. Survey of India toposheets, LISS-III and CArTOSAT DEM satellite imageries are used to prepare various thematic layers viz., geology, slope, lineament, drainage, and geomorphology, and were transformed to raster data using feature to raster conversion tool in ArcGIS spatial analysis, then we reclassify each raster map using reclassify tools. By using weight overlay analysis, each weighted thematic layer is statistically computed to get the ground water potential zones. Then, five different groundwater potential zones were identified, namely “very good”, “good”, “moderate”, “poor”, and “very poor”. The villages under poor groundwater potential zone and the villages under very good groundwater potential zone are finding out. The above study has clearly demonstrated the capabilities of remote Sensing and GIS in demarcation of the different groundwater potential zones in hard rock terrain.

关键词： Hydrogeomorphology remote Sensing GIS

In vitro and in vivo anticancer potential and molecular targets of the new colchicine analog ⅢM-067

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Journal of Integrative Medicine 2023年第1期21卷 62-76页

作者： Sumera Malik Mubashir J.Mintoo Chilakala Nagarjuna reddy rajesh Kumar Pankul Kotwal Sandip BBharate Utpal nandi Dilip M.Mondhe Sanket K.Shukla Pharmacology Division Council of Scientific and Industrial Research(CSIR)-Indian Institute of Integrative MedicineJammu 180001Jammu&KashmirIndia Academy of Scientific&Innovative research(AcSIr) Ghaziabad 201002Uttar PradeshIndia Medicinal Chemistry Division CSIR-Indian Institute of Integrative MedicineJammu 180001Jammu&KashmirIndia Pharmacokinetics-Pharmacodynamics(PK-PD) Toxicology DivisionCSIR-Indian Institute of Integrative MedicineJammu 180001Jammu&KashmirIndia

Objective: The current study evaluated various new colchicine analogs for their anticancer activity and to study the primary mechanism of apoptosis and in vivo antitumor activity of the analogs with selective anticancer properties and minimal toxicity to normal ***: Sulforhodamine B(SrB) assay was used to screen various colchicine analogs for their in vitro cytotoxicity. The effect of N-[(7S)-1,2,3-trimethoxy-9-oxo-10-(pyrrolidine-1-yl)5,6,7,9-tetrahydrobenzo[a] heptalene-7-yl] acetamide(ⅢM-067) on clonogenicity, apoptotic induction, and invasiveness of A549 cells was determined using a clonogenic assay, scratch assay, and staining with 4’,6-diamidino-2-phenylindole(DAPI) and annexin V/propidium iodide. Mitochondrial membrane potential(MMP) and reactive oxygen species(rOS) levels were observed using fluorescence microscopy. Western blot analysis was used to quantify expression of proteins involved in apoptosis, cell cycle, and phosphatidylinositol 3-kinase(PI3K)/protein kinase B(AKT)/mammalian target of rapamycin(mTOr) signaling. Pharmacokinetic and in vivo efficacy studies against Ehrlich ascites carcinoma(EAC) and Ehrlich solid tumor models were conducted using Swiss albino ***: ⅢM-067 showed potent cytotoxicity and better selectivity than all other colchicine analogs screened in this study. The selective activity of ⅢM-067 toward A549 cells was higher among other cancer cell lines,with a selectivity index(SI) value of 2.28. ⅢM-067 demonstrated concentration-and time-dependent cytotoxicity against A549 cells with half-maximal inhibitory concentration values of 0.207, 0.150 and0.106 μmol/L at 24, 48 and 72 h, respectively. It also had reduced toxicity to normal cells(SI > 1) than the parent compound colchicine(SI = 1). ⅢM-067 reduced the clonogenic ability of A549 cells in a dose-dependent manner. ⅢM-067 enhanced rOS production from 24.6% at 0.05 μmol/L to 82.1% at 0.4 μmol/L and substantially decreased the MMP(100% in control to 5.6% at 0.4 μmol

关键词： Colchicine 1IIM-067 Apoptosis Antineoplastic agents Carcinoma Ehrlich tumor A549 cells

Cognitive radio Ad-Hoc Networks: Some New results on Multi-Channel Hidden Terminal Problem

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Communications and Network 2012年第4期4卷 342-348页

作者： Palaniandavar Venkateswaran Srishti Shaw Sandhya Pattanayak rabindranath nandi Department of Electronics & Communication Engineering Narula Institute of Technology Kolkata India Department of Electronics & Telecommunication Engineering Jadavpur University Kolkata India

recently the Cognitive radio (Cr), in particular the Cr Ad-Hoc Network (CrAHN) technology appears as a burgeoning area in wireless communication that enables utilization of limited network resources in more efficient and intelligent way;studies indicate that opportunistic utilization of the available radio frequency spectrum, without interfering the licensed primary user (PU) could be made. This paper presents some simulation based performance of the Multi-Channel Hidden Terminal (MCHT) problem on CrAHNs;new observations on the effect of the number of channels on certain PU-activity metrics, e.g., delay and throughput, are described.

关键词： Cognitive Ad-Hoc Networks MCHT Problem Wireless Communication NS-2

Simultaneous Optimization of Incomplete Multi-response Experiments

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Open Journal of Statistics 2015年第5期5卷 430-444页

作者： Pradip Kumar.nandi rajender Parsad Vinod Kumar Gupta ICAr-IASrI Library Avenue Pusa New Delhi India

This article attempts to develop a simultaneous optimization procedure of several response variables from incomplete multi-response experiments. In incomplete multi-response experiments all the responses (p) are not recorded from all the experimental units (n). Two situations of multi-response experiments considered are (i) on units all the responses are recorded while on units a subset of responses is recorded and (ii) on units all the responses (p) are recorded, on units a subset of responses is recorded and on units the remaining subset of responses is recorded. The procedure of estimation of parameters from linear multi-response models for incomplete multi-response experiments has been developed for both the situations. It has been shown that the parameter estimates are consistent and asymptotically unbiased. Using these parameter estimates, simultaneous optimization of incomplete multi-response experiments is attempted following the generalized distance criterion [1]. For the implementation of these procedures, SAS codes have been developed for both complete (k ≤ 5, p = 5) and incomplete (k ≤ 5, p1 = 2, 3 and p2 = 2, 3, where k is the number of factors) multi-response experiments. The procedure developed is illustrated with the help of a real data set.

关键词： Incomplete Multi-response Experiments Simultaneous Optimization response Surface Designs ridge Analysis

Antidiabetic and antidiarrhoeal potentials of ethanolic extracts of aerial parts of Cynodon dactylon Pers

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Asian Pacific Journal of Tropical Biomedicine 2015年第8期5卷 642-645页

作者： Md.Saidur rahman rasheda Akter Santosh Mazumdar Faridul Islam Nusrat Jahan Mouri Nemai Chandra nandi Abu Syeed Mohammad Mahmud Bangladesh Council of Scientific and Industrial research Laboratories Chittagong

Objective: To explore the antidiabetic and the antidiarrhoeal effects of ethanolic extracts of Cynodon dactylon Pers. aerial parts(EECA) in Wistar ***: To assess the antidiabetic activity of EECA, oral glucose tolerance test(OGTT) model and alloxan induced diabetic test(AIDT) model were performed. The EECA was used at the doses of 2 g/kg, 1 g/kg and 500 mg/kg body weight in OGTT model and 1.5 g/kg was used for AIDT model. Castor oil-induced diarrhoeal model and gastrointestinal motility test with barium sulphate milk model were performed for evaluating the antidiarrhoeal effects at doses of 1 g/kg, 750 mg/kg ***: The dose 2 g/kg in OGTT and 1.5 g/kg in AIDT model blood glucose levels decreased significantly(P r rats that showed antidiabetic effect of EECA. After administration of EECA at the dose of 1 g/kg, the extract showed significant(P rrhoeal activity in castor oil-induced diarrhoeal model. The results were also significant(P rium sulphate milk model for the same dose by using above mentioned ***: It is concluded that EECA contains both antidiabetic and the antidiarrhoeal properties.

关键词： Cynodon dactylon Ethanolic extracts Antidiabetic Antidiarrhoeal Wistar rats

A Note on Stability of Longitudinal Vibrations of an Inhomogeneous Beam

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Applied Mathematics 2012年第1期3卷 19-23页

作者： Prasanta Kumar.nandi Ganesh Chandra Gorain Samarjit Kar 不详

In this paper, we have considered an inhomogeneous beam with a damping distributed along the length of the beam. The beam is clamped at both ends and is assumed to vibrate longitudinally. We have estimated the total energy of the system at any time t. By constructing suitable Lyapunov functional, it is established directly that the energy of this system decays exponentially.

关键词： Inhomogeneous Beam Longitudinal Vibrations Uniform Stabilization Energy Decay Estimate

Analysis of phytochemical profile of Terminalia arjuna bark extract with antioxidative and antimicrobial properties

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Asian Pacific Journal of Tropical Biomedicine 2013年第12期3卷 960-966页

作者： Shreya Mandal Arpita Patra Animesh Samanta Suchismita roy Arpita Mandal Tapasi Das Mahapatra Shrabani Pradhan Koushik Das Dilip Kumar.nandi Department of Nutrition Microbiology and Human PhysiologyRaja N L Khan Women's College

Objective:To investigate phytochemical screening,antimicrobial activity and qualitative thin layer chromatographic separation of flavonoid components,antioxidant activity and total flavonoid compound of Terminalia ***:For phytochemical screening,some common and available standard tests were *** bioassay was done through agar well diffusion *** of antioxidant activity and flavonoid compounds were done through thin layer *** antioxidant activity was measured by 2,2-diphenyl-1-picrylhydrazyl(DPPH)in colorimetric *** chloride colorimetric method was used for total flavonoid ***:Phytochemical screening showed the active compounds presence in high concentration,such as phytosterol,lactones,flavonoids,phenolic compounds and tannins and *** anlimicrobial activity of extract showed that greater inhibition zone against Gram negative bacteria than Gram positive *** methanolic extract showed a promising antioxidant activity,as absorption of DPPH redicles decreased in DPPH free radical scavenging *** components having antioxidant property present in the methanol extract at a level of199.00 mg quercetin equivalent/g of dried methanol extract in colorimetric ***:The Terminalia arjuna bark extract revealed the presence of bio-active constituents which are known to exhibit medicinal as well as physiological activities.

关键词： Terminalia arjuna Phytocompound TLC Antioxidant Total flavonoid Antimicrobial activity DPPH

Uniform Exponential Stabilization for Flexural Vibrations of a Solar Panel

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Applied Mathematics 2011年第6期2卷 661-665页

作者： Prasanta Kumar.nandi Ganesh Chandra Gorain Samarjit Kar 不详

Here we study a problem of stabilization of the flexural vibrations or transverse vibrations of a rectangular solar panel. The dynamics of vibrations is governed by the fourth order Euler-Bernoulli beam equation. One end of the panel is held by a rigid hub and other end is totally free. Due to attachment of the hub, its dynamics leads to a non-standard equation. The exponential stabilization of the whole system is achieved by applying an active boundary control force only on the rigid hub. The result of uniform stabilization is obtained by means of an explicit form of exponential energy decay estimate.

关键词： Solar Panel Hybrid System Flexural Vibrations Uniform Exponential Stabilization Energy Decay Estimate

Insight of Viral Infection of Jatropha Curcas Plant(Future Fuel):A control based mathematical study

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应用泛函分析学报 2011年第4期13卷 366-374,412页

作者： Sumit nandi Subhas Khajanchi Amar Nath Chatterjee Priti Kumar roy Department of Chemistry Narula Institute of TechnologyKolkata-700109 Center for Mathematical Biology and Ecology Department of MathematicsJadavpur UniversityKolkata-700032 India

Jatropha Curcas Linnaeous(Jatropha Curcas L)is a wonder plant with a variety of applications and enormous economic ***,an alternative fuel from non edible vegetable oil of Jatropha Curcas plant,has the requisite potential of providing a promising and commercially viable alternative to diesel oil since it has the desirable physicochemical and performance characteristics comparable to *** alternative fuel is eco-friendly,cost effective and has the huge potentiality for the future generations throughout the *** effective cultivation of this plant, protection from different viral diseases is *** this paper,we describe the eco-epidemiological model of the plant Jatropha Curcas L for understanding the disease dynamics which helps to control the viral infection of the Jatropha Curcas plant *** this approach,this plant can grow ideally for the renewable green fuel of the future world.

关键词： Jatropha Curcas cell biodiesel asymptotic stability optimal control remedial application