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Forestry Studies in China 2010年第3期12卷 126-130页

作者： Gurvinder pal singh DHILLON Avtar singh Dalbar singh SIDHU Department of Forestry & Natural Resources Punjab Agricultural University

The growth performance of twenty poplar （Populus deltoides Bartr.） clones, planted in the central-plain region of Punjab in north-western India, was evaluated using a randomized block design with three replications and plot size of four plants. Significant differences among clones were observed for diameter at breast height （DBH）, height and volume per tree at age five, six and eight years. Clone L-48/89 recorded significantly superior volume than the control （G-48） at all ages, with superiority of 51.4, 43.9 and 48.5 per cent at age five, six and eight years, respectively. The phenotypic and genotypic coefficients of variation were the highest for volume （26.55-34.66% and 15.84-26.00%） and the minimum for tree height （8.43-12.13% and 4.71-7.59%）. The broad sense heritability was relatively higher for DBH （0.42-0.55） and genetic advance as per cent of mean was highest for volume （19.48-40.18）. All genetic parameters increased with age. All traits showed significant positive correlation with each other.

关键词： heritability genetic advance volume genetic variation

Spontaneous closure of stoma

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Gastroenterology Report 2016年第4期4卷 325-327,I0003页

作者： narendra Pandit Harjeet singh Hemanth Kumar Rajesh Gupta G.R.Verma Division of Surgical Gastroenterology Department of General Surgery Post Graduate Institute of Medical Education and Research(PGIMER)ChandigarhIndia

Intestinal loop stoma is a common surgical procedure performed for various benign and malignant abdominal problems,but it rarely undergoes spontaneous closure,without surgical *** male patients presented to our emergency surgical department with acute abdominal *** of them was diagnosed as having rectosigmoid perforation and underwent diversion sigmoid loop colostomy after primary closure of the *** other was a known case of carcinoma of the rectum who had already undergone low anterior resection with covering loop ileostomy;the patient underwent second loop ileostomy,this time for complicated intestinal *** our surprise,both the loop colostomy and ileostomy closed spontaneously at 8 weeks and 6 weeks,respectively,without any *** stoma closure is a rare and interesting *** exact etiology for spontaneous closure remains unknown,but it may be hypothesized to result from slow retraction of the stoma,added to the concept of a tendency towards spontaneous closure of enterocutaneous fistula.

关键词： ileostomy colostomy spontaneous closure of stoma

Identification,development,and application of cross-species intron-spanning markers in lentil(Lens culinaris Medik.)

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The Crop Journal 2018年第3期6卷 299-305页

作者： Debjyoti Sen Gupta Jitendra Kumara Sunanda Gupta Sonali Dubey Priyanka Gupta narendra Pratap singh Gaurav Sablok Division of Crop Improvement ICAR-Institute of Pulses ResearchKanpur 208024UPIndia Division of Plant Biotechnology ICAR-Institute of Pulses ResearchKanpur 208024UPIndia Department of Biodiversity and Molecular Ecology Research and Innovation CentreFondazione Edmund MachVia E.Mach 138010 San Michele all'AdigeTrentoItaly

Lentil(Lens culinaris Medik) is one of the most important food legumes in the world. The use in lentil of molecular marker-assisted breeding is limited, owing to the low availability of polymorphic markers. In the present study, we developed a set of polymorphic intron-spanning markers(ISMs) using a cross-species mapping approach. In this approach, putative unique transcripts(PUTs) of L. culinaris were mapped onto the Medicago truncatula genome, exploiting its closeness with the lentil genome. Spliced alignment of the PUTs resulted in a total of 25,717 alignments, allowing the development of 1703 ISMs. From these, a subset of 105 ISMs were synthesized and validated with a 51% amplification success rate in 32 lentil genotypes. Of these ISMs, 40(74%) were polymorphic and generated 2–11 alleles per locus in a genetically diverse panel of 32 lentil genotypes including wild *** set of polymorphic ISMs along with their functional annotation data will be useful in lentil breeding.

关键词： Allele diversity Cross-species Genotypes Introns Lentil Molecular markers

Compatible package-based agriculture systems:an urgent need for agro-ecological balance and climate change adaptation

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Soil Ecology Letters 2022年第3期4卷 187-212页

作者： Rishikesh singh Tanu Kumari Pramit Verma Bhupinder pal singh Akhilesh singh Raghubanshi Integrative Ecology Laboratory(IEL) Institute of Environment&Sustainable Development(IESD)Banaras Hindu UniversityVaranasi 221005India NSW Department of Primary Industries Elizabeth Macarthur Agricultural InstituteMenangleNSW 2568Australia

Besides contributing majorly in the growth of a country,agriculture is one of the severely affected sectors at *** modifications and adaptations are being made in agricultural practices to cope-up with the declining soil fertility and changing climate scenarios across the ***,the development and adoption of a single agricultural practice may not help in the holistic mitigation of the impacts of climate change and may result in economic vulnerability to ***,it is high time to develop and recommend a group of agricultural practices i.e.,package-based agriculture system having some compatibility for one another in the long *** this article,a viewpoint has been given on some emergent agronomic practices adopted in the tropical agroecosystems which have potential to be developed as compatible agricultural package in ***,we also emphasized on exploring some key indicators/environmental factors to assess the compatibility of different agronomic *** identifying the research transition from single to combined agricultural practices,a bibliometric analysis was performed by using conservation agriculture(CA),the system of rice intensification(SRI),organic agriculture and soil(biochar)amendment as the major agronomic practices being used for improving agroecological services such as improving nutrient cycling,soil fertility and crop productivity as well as climate change *** results revealed that scientific communities are now paying attention to exploring the role of combined agricultural practices for agro-ecological balance and climate change ***,the limitations of the adoption of agronomic packages under different agro-climatic zones have also been *** recommendations of the study would further help the environmental decision-makers to develop potential measures for climate change mitigation without compromising the agro-ecological balance.

关键词： Agricultural policies Bibliometric analysis Biochar Conservation agriculture GHG emission Organic farming SRI Sustainable agriculture

Resolution Enhancement of Optical Surface Plasmon Resonance Sensor Using Metamaterial

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Photonic Sensors 2015年第4期5卷 330-338页

作者： Sarika pal Y. K. PRAJAPATI J. P. SAINI V. singh Sarika pal Department of Electronics & Communication Engineering KIET Ghaziabad (U.P.) India yogendra Kumar Prajapati Department of Electronics & Communication Engineering MNNIT Allahabad-211004 (U.P.) India jai Prakash Saini Department of Electronics & Communication Engineering BIET Jhansi-284128 (U.P.) India Vivek singh Department of Physics Faculty of Science Banaras Hindu University Varanasi (U.P.) India

In this paper, we present and discuss a an optical surface plasmon resonance （SPR） path to extend the enhancement of the resolution of sensor. Basically, our approach is to combine bi-metamaterial layers to design the SPR sensor. The calculation shows that the proposed SPR sensor structure has a preference over the conventional SPR sensors and bimetallic SPR sensors since it gives a much sharper reflectance dip and can achieve considerable sensitivity improvement when compared to the recently reported investigations. The effects of the metamaterial permittivity, permeability, and thickness on the reflectance curve are studied. It is also seen that metamaterial layers improve the field of the proposed SPR structure, which may provide a novel tool to significantly enhance the sensitivity and resolution of the sensors.

关键词： Surface plasmon resonance sensor metamaterials Fresnel equations reflectance

Effect of precursor thermal history on the formation of amorphous and crystalline calcium carbonate

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Particuology 2017年第4期15卷 29-34页

作者： Jitendra pal singh Mi-Jung Ji Cheol-Hwee Shim Sang Ok Kim Keun Hwa Chae Advanced Analysis Center Korea Institute of Science and Technology Seou102792 Republic of Korea Department of Biomedical Engineering Seonam University Namwon 55724 Republic of Korea

The role of the thermal history of the precursor was studied for amorphous and crystalline calcium carbon- ate phases synthesized from calcium nitrate. The X-ray diffraction patterns of these phases are influenced by their annealing temperature of 0, 300, 400, and 500 ℃. However, the effect of the precursor thermal history on the X-ray diffraction pattern of the resulting calcium carbonate phase is negligible. Transmis- sion electron microscopy indicates that materials annealed at 400 ℃ consist of amorphous aggregates, irrespective of the precursor thermal history. The crystallite size of crystalline calcium carbonate is influ- enced by the precursor thermal history, and ranges from 23 to 26 rim. Near-edge X-ray absorption fine structure measurements indicate that the annealing temperature plays an important role in determining the local electronic structure. The role of the thermal history of the precursor is also important for the resultinu electronic structure.

关键词： Amorphous material Particles Electron microscopy X-ray techniques NEXAFS Calcium carbonate

Bibliometric analysis of biochar research in 2021:a critical review for development,hotspots and trend directions

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Biochar 2023年第1期5卷 102-122页

作者： Ping Wu Bhupinder pal singh Hailong Wang Zhifen Jia Yujun Wang Wenfu Chen Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China School of Environmental and Rural Science University of New EnglandArmidaleNSW 2351Australia School of Environmental and Chemical Engineering Foshan UniversityFoshan 528000GuangdongChina University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008JiangsuChina Biochar Engineering and Technology Research Center of Liaoning Province Rice Research InstituteAgronomy CollegeShenyang Agricultural UniversityShenyang 110866LiaoningChina Institute of Eco-Environmental and Soil Sciences Guangdong Academy of SciencesGuangzhou 510650China

As a bioproduct from the thermal decomposition of biomass,biochar has various applications in diversified *** this study,a bibliometric analysis was conducted to visualize the current research status and trends of biochar research.A total of 5535 documents were collected from the Web of Science Core Collection and subjected to visualization analysis for the biochar field’s development in 2021 with CiteSpace *** visual analysis results demonstrate that the number of publications expanded dramatically in 2021,and the growth trend would *** and USA were the most contributing countries in biochar research in terms of the number of *** on the keyword co-occurrence analyses,“Biochar for toxic metal immobilization”,“Biochar-based catalyst for biofuel production”,“Biochar for global climate change mitigation”,“Biochar for salinity and drought stress amelioration”,“Biochar amendment in composting”,and“Biochar as additives in anaerobic digestion”were the main research trends and hotspots in this field in *** indicates that the biochar research was *** the research hotspots,the employment of biochar as heterogeneous catalysts for biofuel production gained great attention in *** the contrary,bioremediation using functional bacteria immobilized on biochar and biochar-assisted advanced oxidation process were well-studied but with less frequency than other topics in ***,the future research was proposed for green and sustainable applications of *** review provides a comprehensive overview of the research frontiers,the evolution of research hotspots,and potential future research directions in the biochar field.

关键词： Bibliometric analysis Citespace Research hotspots Toxic metal immobilization Sustainable application

Transient performance estimation of charge plasma based negative capacitance junctionless tunnel FET

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Journal of Semiconductors 2016年第2期37卷 66-70页

作者： sangeeta singh p.n.kondekar pawan pal Department of Electronics and Communication Engineering PDPM-Indian Institute of Information TechnologyDesign and Manufacturing(IIITDM)Jabalpur JabalpurMPIndia

We investigate the transient behavior of an n-type double gate negative capacitance junctionless tun- nel field effect transistor （NC-JLTFET）. The structure is realized by using the work-function engineering of metal electrodes over a heavily doped n＋ silicon channel and a ferroelectric gate stack to get negative capacitance be- havior. The positive feedback in the electric dipoles of ferroelectric materials results in applied gate bias boosting. Various device transient parameters viz. transconductance, output resistance, output conductance, intrinsic gain, intrinsic gate delay, transconductance generation factor and unity gain frequency are analyzed using ac analysis of the device. To study the impact of the work-function variation of control and source gate on device performance, sensitivity analysis of the device has been carried out by varying these parameters. Simulation study reveals that it preserves inherent advantages of charge-plasma junctionless structure and exhibits improved transient behavior as well.

关键词： negative capacitance intrinsic gain transconductance generation factor intrinsic bias boosting

Draft genome sequence of a less-known wild Vigna: Beach pea(V. marina cv. ANBp-14-03)

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The Crop Journal 2019年第5期7卷 660-666页

作者： Awnindra Kumar singh A.Velmurugan Debjyoti Sen Gupta Jitendra Kumar Ravi Kesari Aravind Konda narendra Pratap singh Sibnarayan Dam Roy Utpal Biswas R.Rahul Kumar Sanjay singh ICAR-Central Island Agricultural Research Institute Port Blair 744101Andaman&Nicobar IslandsIndia Division of Crop Improvement ICAR-Indian Institute of Pulses ResearchKanpur 208024Uttar PradeshIndia Department of Plant Breeding and Genetics Bhola Paswan Shastri Agricultural CollegePurneaBihar 854302India Division of Plant Biotechnology ICAR-Indian Institute of Pulses ResearchKanpur 208024Uttar PradeshIndia ICAR-National Research Centre for Biotechnology LBS CentrePusa CampusNew Delhi 110012India

Beach pea or beach cowpea(Vigna marina(Burm.)Merr.)belongs to the family *** is a close relative of cultivated Vigna species such as adzuki bean(***),cowpea(***),mung bean(***),and blackgram(***),and is distributed throughout the *** its ability to tolerate salt stress,beach pea has great potential to contribute salt-tolerance genes for developing salt-tolerant cultivars in cultivated Vigna ***,it is still underutilized in Vigna breeding programs.A draft genome sequence of beach pea was generated using a high-throughput next-generation sequencing platform,yielding 23.7 Gb of sequence from 79,929,868 filtered reads.A de novo genome assembly containing 68,731 scaffolds gave an N50 length of 10,272 bp and the assembled sequences totaled 365.6 Mb.A total of 35,448 SSRs,including 3574 compound SSRs,were identified and primer pairs for most of these SSRs were *** analysis identified 50,670 genes with mean coding sequence length 1042 *** analysis revealed highest sequence similarity with ***,followed by *** with the *** genome revealed 16,699 SNPs and 2253 InDels and comparison with the *** genome revealed 17,538 SNPs and 2300 *** our knowledge this is the first draft genome sequence of beach pea derived from an accession(ANBp-14-03)adapted locally in the Andaman and Nicobar Islands of *** draft genome sequence may facilitate the genetic enhancement in cultivated Vigna species.

关键词： Beach pea Vigna marina NextSeq 500 Whole-genome sequencing Salinity tolerance

Accuracy Improvement of ASTER Stereo Satellite Generated DEM Using Texture Filter

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Geo-Spatial Information Science 2010年第4期13卷 257-262页

作者： Mandla V.Ravibabu Kamal Jain Surendra pal singh Naga Jyothi Meeniga Center for GIS School of Geography and Environmental ScienceMonash UniversityClayton CampusVICAustralia Environmental Water Resource and Transportation Engineering DivisionSchool of Mechanical & Building ScienceVellore Institute of Technology(VIT)-University Vellore-632 014Tamil NaduIndia Geomatics Engineering Section Department of Civil EngineeringIndian Institute of Technology RoorkeeRoorkee-247667U.A.India Post Graduate Student(GST) Institute of Science and TechnologyJNTUHyderabadIndia

The grid DEM(digital elevation model) generation can be from any of a number of sources:for instance,analogue to digital conversion of contour maps followed by application of the TIN model,or direct elevation point modelling via digital photogrammetry applied to airborne images or satellite ***,apart from the deployment of point-clouds from LiDAR data acquisition,the generally favoured approach refers to applications of digital *** of the most important steps in such deployment is the stereo matching process for conjugation point(pixel) establishment:very difficult in modelling any homogenous areas like water cover or forest canopied areas due to the lack of distinct spatial *** a result,application of automated procedures is sure to generate erroneous elevation *** this paper,we present and apply a method for improving the quality of stereo DEMs generated via utilization of an entropy texture *** filter was applied for extraction of homogenous areas before stereo matching so that a statistical texture filter could then be applied for removing anomalous evaluation values prior to interpolation and accuracy assessment via deployment of a spatial correlation *** exemplification,we used a stereo pair of ASTER 1B images.

关键词： ASTER digital elevation model extraction stereo matching texture filter quality improvement