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Editorial note for the Geodesy and Geodynamics journal special issue:Remote Sensing and GIS applications in crustal deformation and neotectonics

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Geodesy and Geodynamics 2022年第3期13卷 189-191页

作者： Ajay Kumar Taloor Girish chandra Kothyari Shangmin Zhao Rajwant Mayank joshi Department of Remote Sensing and GIS University of JammuJammu 180006India Active Fault Research Group Institute of Seismological ResearchGandhinagar 382009India Department of Surveying and Mapping Taiyuan University of Technology No.79Yingze West RoadTaiyuan 030024China Science and Engineering Research Board Government of IndiaNew Delhi 110016India GB Pant Institute of Himalayan Environment Sikkim Regional Centre Pangthang 737101India

Crustal deformation and neotectonics are well-understood phenomena that happen almost on every part of the Earth and have some diastrophic effects on the Earth’s *** understand these effects,Remote Sensing(RS)and(GIS)have sharpened the human ability to learn about the scientiflc reasons for the Earth’s dynamic activities,including active tectonics and surface landform changes in spatially and temporally.

关键词： tectonics Earth crustal

MOLECULAR DYNAMICS SIMULATION OF POLYMER/CARBON NANOTUBE COMPOSITES

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Acta Mechanica Solida Sinica 2015年第4期28卷 409-419页

作者： Sumit Sharma Rakesh chandra Pramod Kumar navin Kumar Department of Mechanical Engineering Dr.B.R.Ambedkar National Institute of Technology School of Mechanical Materials & Energy Engineering (SMMEE) Indian Institute of Technology

In this paper, we present classical molecular dynamics （MD） simulations of model polymer/CNT composites constructed by embedding a single wall （10,10） CNT into two different amorphous polymer matrices： poly（methyl methacrylate） and poly{（m-phenylene-vinylene）-co- [（2,5-dioctoxy-p-phenylene） vinylene]}, respectively, with different volume fractions. The simulation results support the idea that it is possible to use CNTs to mechanically reinforce an appropri- ate polymer matrix, especially in the longitudinal direction of the nanotube. The comparison of the simulation results with the macroscopic rule-of-mixtures for composite systems showed that for strong interfacial interactions, there can be large deviations of the results from the rule-of- mixtures. In order to verify this study, results obtained have been compared with those given by Elliott and Han （2007）.

关键词： nano-structures elasticity mechanical properties computational modeling

Mountain highway stability threading on the fragile terrain of upper Ganga catchment(Uttarakhand Himalaya),India

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Journal of Mountain Science 2022年第12期19卷 3407-3425页

作者： S.P.SATI Shubhra SHARMA Girish Ch.KOTHYARI Maria ASIM Y.P.SUNDRIYAL Kapil MALIK Ayush joshi Harsh DOBHAL Naresh RANA navin JUYAL Department of Basic and Social Science(CoF) VCSGU University of Horticulture&Forestry BharsarPauri Garhwal 246123India Geosciences Division Physical Research LaboratoryAhmedabad 380005India Department of Geography Instituteof ScienceBanaras Hindu UniversityVaranasi 221005India Department of Petroleum Engineering&Earth Sciences University of Petroleum and Energy StudiesDehradun 248007India Department of Geology HNBG harwal UniversitySrinagar 246174India Institute of Seismological Research Gandhinagar 382009India School of Media and Communication Studies Doon UniversityDehradun 248001India Department of Geology Universityof DelhiDelhi-110007India Kabir Enclave BopalAhmedabad 380058India

Roads are the most critical means of connectivity in Himalayan ***,the terrain is inherently fragile with varied geological,geomorphological,ecological,and climate regimes,that result in frequent slope failure and disruption in *** risk is further to be increased by extreme events-generated hazards,which are expected to rise in frequency and magnitude with ongoing intervention,however,can improve the sustainability of road *** present study attempts to analyse and quantify the impacts of a major road widening project initiated in 2018 in the upper Ganga catchment,Uttarakhand Himalaya which has destabilised valley slopes along the widened ***,a large quantity of excavated sediments is dumped down slopes,which is posing a threat to aquatic *** estimates are based on Google Earth imagery of a few representative road segments recently widened in the upper Ganga catchment,which indicate a substantial increase in the landslide and unstable slope area following the road *** increase in unstable slope area is attributed to improper road widening approaches and poor slope management in seismically active Himalayan ***,the mean velocity plots of Persistent Scatterer Interferometric Synthetic Aperture Radar(PSInSAR)indicate that the segments undergoing road widening are coherent with areas of significant earth surface change.A broad correlation between the road width and sediment yield indicates that even a slight increase in road width can result in a large-scale mass removal from the toe of the hillslope,inflicting cascading impact on *** study recommends a more flexible road construction approach based on the environmental and geological aspects of the terrain for sustainable road ***,the impact of climate change is looming over the Himalayas,and the relation between climate change and its potential effects on the stability of slopes remains an open issue.

关键词： Himalaya Disaster resilient road Landslide Flash flood Road-widening

Photometric studies of two W UMa type variables in the field of distant open cluster NGC 6866

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Research in Astronomy and Astrophysics 2016年第4期16卷 87-96页

作者： Yogesh chandra joshi Rukmini Jagirdar Santosh joshi Aryabhatta Research Institute of Observational Sciences Manora PeakNainital 263002India Center for Advanced Study in Astronomy Osmania UniversityHyderabad 500007India

We present photometric analysis of the two W UMa type binaries identified in the field of distant open star cluster NGC 6866. Although these systems, namely ID487 and ID494, were reported by joshi et al., a detailed study of these stars has not been carried out before. The orbital periods of these stars are found to be 0.415110±0.000001 day and 0.366709±0.000004 day, respectively. Based on the photometric and infrared colors, we find their respective spectral types to be K0 and K3. The photometric light vari- ations of both stars show the O＇Connell effect which can be explained by employing a dark spot on the secondary components. The V and I band light curves are analyzed using the Wilson-Devinney （WD） code and relations given by Gazeas which yield radii and masses for the binary components of star ID487 of R1 = 1.24 ± 0.01R,R2 = 1.11 4- 0.02Re, and M1 = 1.24 ± 0.02Me, M2 = 0.96 ±0.05Me and for star ID494 of R1 = 1.22 ± 0.02Re, R2 = 0.81 4- 0.01 Re, and M1 = 1.20 4- 0.06 Me, M2 = 0.47 4- 0.01 Me.

关键词： methods: observational -- techniques: photometric -- binaries: eclipsing -- stars: fundamen-tal parameters

Long-term photometric study of a faint W UMa binary in the direction of M31

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Research in Astronomy and Astrophysics 2017年第11期17卷 59-70页

作者： Yogesh chandra joshi Rukmini Jagirdar Aryabhatta Research Institute of Observational Sciences Manora Peak Nainital 263002 India Center for Advanced Study in Astronomy Osmania University 500007 India

We carry out a re-analysis of the photometric data in Rclc bands which were taken during the Nainital Microlensing Survey from 1998 to 2002 with the aim to detect gravitational microlensing events in the direction of M31. Here, we do photometric analysis of a faint W UMa binary CSS_JO04259.3＋410629 identified in the target field. The orbital period of this star is found to be 0.266402±0.000018 d. The photometric mass ratio, q, is found to be 0.28±0.01. The photometric light curves are investigated using the Wilson-Devinney （WD） code and absolute parameters are determined using empirical relations which provide masses and radii of the binary as M1 = 1.19±0.09M⊙, M2 = 0.33±0.02M⊙ and R1 = 1.02±0.04R⊙, R2 = 0.58±0.08Re respectively based on Rc band data. Quite similar values are found by analyzing/c band data. From the photometric light curve examination, the star is understood to be a low mass-ratio overcontact binary of A-subtype with a high fill-out factor of about 47%. The binary system is found to be located approximately at a distance of 2.64±0.03 kpc having a separation of 2.01 ±0.05 Re between the two components.

关键词： methods: observational -- techniques: photometric -- binaries: eclipsing -- stars: funda- mental parameters

Population I Cepheids and understanding star formation history of the Small Magellanic Cloud

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Research in Astronomy and Astrophysics 2016年第4期16卷 71-78页

作者： Yogesh chandra joshi Auro Prasad Mohanty Santosh joshi Aryabhatta Research Institute of Observational Sciences Manora PeakNainital 263002India National Institute of Technology Rourkela 769008India

In this paper, we study the age and spatial distributions of Cepheids in the Small Magellanic Cloud （SMC） as a function of their ages using data from the OGLE III photometric catalogue. A period - age relation derived for Classical Cepheids in the Large Magellanic Cloud （LMC） has been used to find the ages of Cepheids. The age distribution of the SMC Classical Cepheids is found to have a peak at log（Age）： 8.40 ± 0.10 which suggests that a major star formation event might have occurred in the SMC about 250 4- 50 Myr ago. It is believed that this star forming burst had been triggered by close interactions of the SMC with the LMC and/or the Milky Way. A comparison of the observed spatial distributions of the Cepheids and open star clusters has also been carried out to study the star formation scenario in the SMC.

关键词： stars: Cepheids -- star type: Pop I (classical) -- galaxies: SMC -- methods: statistical

Optimization of substrate ratio for beer production from finger millet and barley

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International Journal of Agricultural and Biological Engineering 2015年第2期8卷 110-120页

作者： Sanjay Kumar Anupama Singh navin chandra Shahi Khan Chand Kopal Gupta Department of Post-harvest Process&Food Engineering College of TechnologyG.B.Pant University of Agriculture and TechnologyPantnagar 263145Udham Singh NagarUttarakhandIndia

Seventeen designed experiments were conducted in three steps(malting,brewing and fermentation)to produce beer from barley,finger millet and the combination of *** of independent variables with three levels for each *** ratios of grains(100:0,50:50,0:100),kilning temperature(50℃,70℃,90℃)and malted grain to water ratios(1:3,1:5,1:7)were investigated on product *** results of the study indicated that all the independent parameters *** ratio,kilning temperature and slurry ratio affected the responses(pH,colour,bitterness and alcohol content)*** values of parameters,from the simultaneous optimization done using Design Expert 8.***.6.1 software,for beer production,were found to be 68:32 blend ratio,50℃ kilning temperature and 1:7 slurry *** model F-value was found to be highly significant at 1% level of significance for all the *** the responses could be predicted by fitting the second order mathematical model and adequacy checked by R^(2).

关键词： beer production fermentation technology blend ratio alcohol content bitterness finger millet barley

Catalytic effects of Cu-Co~* on the thermal decomposition of AN and AN/KDN based green oxidizer and propellant samples

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Defence Technology（防务技术） 2018年第3期14卷 250-260页

作者： Pratim Kumar Puran chandra joshi Rajiv Kumar Shelly Biswas Department of Space Engineering & Rocketry Birla Institute of Technology Department of Mechanical Engineering Vidya Vihar Institute of Technology

This paper presents the catalytic effects of Cu-Co~* catalyst on the decomposition of AN and AN/KDN based oxidizer and propellant samples. Ozawa-Flynn-Wall(OFW) iso-conversional method was used for the kinetic studies and to compute the activation energy(Ea) values for various decomposition steps of the prepared oxidizer and propellant samples in the temperature range of 50 e500C. TG-DTG experiments were carried out for both oxidizer and propellant samples at the heating rates of 3, 5, and 10C/min. AN/KDN based oxidizer samples were prepared by an evaporative co-crystallization method. Citric acid sol-gel method was used for the synthesis of Cu-Co~* catalyst. The propellant sample contains HTPB as the fuel binder along with other ingredients such as TDI, DOA, and Glycerol. The Cu-Co~* catalyst was used as 2% by weight to the total weight of catalyzed oxidizer and propellant samples. It was observed from the present study that, Cu-Co~* catalyst helps in reducing the Ea values for AN and AN based propellant samples. However, with the percentage increment of KDN in the AN crystals, Ea value ***, it was observed that Cu-Co~* catalyst stabilizes the initial partial decomposition of KDN.

关键词：催化氧化剂催化效果热分解 Cu 燃料取样 TG-DTG 催化剂

Impacts of Bioinoculants Pseudomonas jesenii MP1 and Rhodococcus qingshengii S10107 on Chickpea (Cicer arietinum L.) Yield and Soil Nitrogen Status

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Pedosphere 2019年第3期29卷 388-399页

作者： Divya joshi Ramesh chandra Deep chandra SUYAL Saurabh KUMAR Reeta GOEL Department of Microbiology College of Basic Sciences and Humanities Govind Ballabh Pant University of Agriculture and Technology Pantnag ar-263145 Uttarakhand (India) Department of Soil Science College of Agriculture Govind Ballabh Pant University of Agriculture and Technology Pantnagar- 263145 Uttarakhand (India)

Cold-adapted bioinoculants are considered as harbingers of sustainable hill agriculture. Therefore, two previously characterized psychrotolerant diazotrophs, Pseudomonas jesenii MP1 and Rhodococcus qingshengii S10107, were evaluated for their plant growthpromoting potential for chickpea (Cicer arietinum L.) grown under natural field conditions. Comparative analysis of agronomical and biochemical crop parameters revealed the irrelevance of chemical fertilizers for chickpea production;the diazotrophs alone were sufficient to fulfil the crop's nutritional requirement. However, the integrated use of bacterial strains in combination with urea at 20 kg N ha^-1 as urea was being recommended for higher crop yield and better soil nitrogen status. Quantitative polymerase chain reaction (qPCR) and denaturing gradient gel electrophoresis (DGGE)-based soil bacterial dynamics unveiled the persistence of both diazotrophs until the end of the crop maturation period without affecting the native micro-flora. Therefore, these bioinoculants can be explored as natural nitrogen resource, and an additional incentive in their bio-formulation will be a step towards agricultural sustainability.

关键词： agricultural sustainability denaturing gradient gel electrophoresis (DGGE) hill agriculture psychrotolerance N fertilizer N fixation N uptake quantitative polymerase chain reaction (qPCR)