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Genome-Wide Comparative in silico Analysis of Calcium Transporters of Rice and Sorghum

Genomics, Proteomics & Bioinformatics 2011年第4期9卷 138-150页

作者： Anshita Goel Gohar Taj dinesh pandey Sanjay Gupta Anil Kumar Department of Molecular Biology and Genetic Engineering College of Basic Sciences and Humanities G.B. Pant University of Agriculture and Technology Department of Biotechnology Uttrakhand Technical University Department of Biotechnology SBS Biomedical P.G. Institute of Biomedical Science and Research

The mechanism of calcium uptake, translocation and accumulation in Poaceae has not yet been fully understood. To address this issue, we conducted genome-wide comparative in silico analysis of the calcium （Ca2＋） transporter gene family of two crop species, rice and sorghum. Gene annotation, identification of upstream cis-acting ele- ments, phylogenetic tree construction and syntenic mapping of the gene family were performed using several bio- informatics tools. A total of 31 Ca2＋ transporters, distributed on 9 out of 12 chromosomes, were predicted from rice genome, while 28 Ca2＋ transporters predicted from sorghum are distributed on all the chromosomes except chromosome 10 （Chr 10）. Interestingly, most of the genes on Chr 1 and Chr 3 show an inverse syntenic relation- ship between rice and sorghum. Multiple sequence alignment and motif analysis of these transporter proteins re- vealed high conservation between the two species. Phylogenetic tree could very well identify the subclasses of channels, ATPases and exchangers among the gene family. The in silico c/s-regulatory element analysis suggested diverse functions associated with light, stress and hormone responsiveness as well as endosperm- and meris- tem-specific gene expression. Further experiments are warranted to validate the in silico analysis of the predicted transporter gene family and elucidate the functions of Ca2＋ transporters in various biological processes.

关键词： in silico comparison calcium transporter rice sorghum genomic annotation synteny

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Improvement of Deep Groove Ball Bearing’s Performance Using a Bionic Textured Inner Race

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Journal of Bionic Engineering 2021年第4期18卷 974-990页

作者： K.E.Ch.Vidyasagar R.K.pandey dinesh Kalyanasundaram Center for Biomedical Engineering Indian Institute of Technology DelhiNew Delhi110016India Department of Biomedical Engineering College of EngineeringOsmania UniversityHyderabad500007India Department of Mechanical Engineering Indian Institute of Technology DelhiNew Delhi110016India Department of Biomedical Engineering All India Institute of Medical SciencesNew Delhi110029India

Micro-textured surfaces have improved the tribological performance of contact surfaces under lubricated conditions;however,not practiced due to manufacturing *** addition to simpler micro-pits or straight-trench type textures,sophisticated bioinspired textures on commercial radial ball bearings have been scarcely *** this work,Dendroaspis polylepis(Mamba snake)skin-type textures were fabricated on the inner race of FAG radial ball bearings using a nanosecond fiber laser *** the snake textures were primarily meant to enhance friction,the dimensions of the texture have been carefully chosen to improve the tribological performance under lubricated *** textured bearings were assembled and experimented at various rotational speeds and lightly loaded conditions to measure vibrational amplitude,frictional torque,and temperature *** to untextured(conventional)bearing,the snake-skin type textured bearings resulted in improved tribo-dynamic performance.

关键词： bionic texture radial ball bearing frictional torque vibration temperature

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An exploration of frictional and vibrational behaviors of textured deep groove ball bearing in the vicinity of requisite minimum load

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Friction 2021年第6期9卷 1749-1765页

作者： K.E.Ch.VIDYASAGAR R.K.pandey dinesh KALYANASUNDARAM Center for Biomedical Engineering Indian Institute of Technology DelhiNew Delhi 110016India Department of Biomedical Engineering College of EngineeringOsmania UniversityTelangana 500007India Department of Mechanical Engineering Indian Institute of Technology DelhiNew Delhi 110016India Department of Biomedical Engineering Indian Institute of Technology DelhiNew Delhi 110016India

In case of lightly loaded radial ball bearings,failure mechanisms other than fatigue such as smearing of raceways due to increased frictional torque and vibrations often ***,attempts have been made herein for reducing the frictional torque and minimizing the vibrations of a radial deep groove ball bearing employing surface textures at the inner *** pulsed laser was used to create texture(involving micro-dimples having different dimple area density)on the inner race of test *** an in-house developed test rig,frictional torque and vibrational parameters were measured at different speeds and light loads(*** vicinity of 0.01C,where C is dynamic load capacity of radial ball bearing).Significant reduction in frictional torque and overall vibrations were found in the presence of micro-dimples on inner race at light loads irrespective of operating *** without satisfying the minimum load needed criteria for the satisfactory operation,substantial reduction in smearing marks was found on the races of textured ball bearings in comparison to conventional cases.

关键词： ball bearing textured inner race grease lubricated frictional torque vibration

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Metallurgical Behaviour and Carbon Diffusion in Buttering Deposits Prepared With and Without Buffer Layers

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Acta Metallurgica Sinica(English Letters) 2017年第2期30卷 120-132页

作者： dinesh W.Rathod Sunil pandey Sivanandam Aravindan Pavan Kumar Singh Department of Mechanical Engineering Indian Institute of Technology Delhi Hauz-Khas New Delhi 110016 India School of MACE University of Manchester Manchester M13 9PL UK Bhabha Atomic Research Centre Mumbai 400085 India

Use of a buttering deposit on ferritic steel in dissimilar metal weld（DMW） joint is a common practice in nuclear plants to connect pressure vessel components（ferritic steel） to pipelines（austenitic stainless steel）.Carbon migration and metallurgical changes near fusion interface（ferritic steel–austenitic stainless steel） lead to a steeper gradient in material properties,and minimizing this gradient is the major challenge in the manufacturing of DMW *** 82 is often deposited on ferritic steel material as buttering to reducing the gradient of physical and attaining material *** 82/182 fillers are used to minimize the carbon migration,but the results are not truly *** this paper,Ni–Fe alloy（chromium-free） has been used as the intermediate buffer layer in the weld buttering deposit to address the issue of carbon migration and subsequent metallurgical *** weld pads with and without buffer layers of Ni–Fe alloy have been investigated and compared in detail for metallurgical properties and carbon ***–Fe buffer layer can significantly control the carbon migration which resists the metallurgical *** showed the better results in postweld heat treatment and thermally aged *** buttering deposit with Ni–Fe buffer layer could be the better choice for DMW joints requirements.

关键词： Dissimilar welds Buttering Carbon diffusion Buffer layer Metallurgical properties

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Modelling vehicular interactions for heterogeneous traffic flow using cellular automata with position preference

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Journal of Modern Transportation 2017年第3期25卷 163-177页

作者： Gaurav pandey K.Ramachandra Rao dinesh Mohan Department of Civil Engineering and Transportation Research and Injury Prevention Programme Indian Institute of Technology Delhi Shiv Nadar University

This paper proposes and validates a modified cellular automata model for determining interaction rate （i.e. number of car-following/overtaking instances） using traffic flow data measured in the field. The proposed model considers lateral position preference by each vehicle type and introduces a position preference parameter fl in the model which facilitates gradual drifting towards preferred position on road, even if the gap in front is sufficient. Additionally, the model also improves upon the conven- tional model by calculating safe front and back gap dynamically based on speed and deceleration properties of leader and follower vehicles. Sensitivity analysis was carried out to determine the effect of β on vehicular interac- tions and the model was calibrated and validated using interaction rates observed in the field. Paired tests were conducted to determine the determining interaction rates validity of the model in Results of the simulations show that there is a parabolic relationship between area occupancy and interaction rate of different vehicle types. The model performed satisfactorily as the simulated interaction rate between different vehicle types were found to be statistically similar to those observed in field. Also, as expected, the interaction rate between light motor vehicles （LMVs） and heavy motor vehicles （HMVs） were found to be higher than that between LMVs and three wheelers because LMVs and HMVs share the same lane. This could not be done using conventional CA models as lateral movement rules were dictated by only speeds and gaps. So, in conventional models, the vehicles would end up in positions which are not realistic. The position preference parameter introduced in this model motivates vehicles to stay in their preferred positions. This study demonstrates the use of interaction rate as a measure to validate micro- scopic traffic flow models.

关键词： Cellular automata Vehicular interaction ratePosition preference Traffic flow modelling Video-graphic survey

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Rift-associated ultramafic lamprophyre(damtjernite) from the middle part of the Lower Cretaceous(125 Ma) succession of Kutch,northwestern India: Tectonomagmatic implications

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Geoscience Frontiers 2018年第6期9卷 1883-1902页

作者： Rohit pandey N.V.Chalapathi Rao Prashant Dhote dinesh PANDit A.K.Choudhary Samarendra Sahoo B.Lehmann Electron Probe Micro Analyzer Laboratory Department of Geology Centre of Advanced Study Banaras Hindu University Bhumi Geoservices 1 & 2 Maa Bamleshwari Nagar Godhani Railway Institute Instrumentation Centre Indian Institute of Technology Mineral Resources Technical University of Clausthal

Mineralogical,geochemical and isotopic(Sr and Nd) studies on the recently reported ca. 124 Ma'anorogenic lamproite' dyke from the Palanpur area, Kutch seismogenic rift zone, northwestern India, are presented. We propose a new classification for the dyke as a damtjernite(ultramafic lamprophyre; UML)based on its porphyritic-panidiomorphic texture, abundance of phlogopite, presence of nepheline in the groundmass, and the composition of liquidus phases such as olivine, phlogopite, magnetite, and clinopyroxene(diopside). The Palanpur UML is primitive(Mg# =74-77),silica-undersaturated(SiO_2<40 wt.%),potassic to slightly sodic in nature, and is strikingly similar to the ～69 Ma UML dykes and sills of the Tethyan Indus suture zone, which are considered as the earliest yet known manifestations of the Deccan Large Igneous Province(LIP). Bulk-rock(^(87)Sr/^(86)Sr)_i(0.70460-0.70461) and ε_(N)d(t)(+2.56 to-0.69) of the Palanpur UML signify derivation from a slightly depleted mantle source similar to that of asthenospheric magmas such as OIB. This is further attested to by the high incompatible trace element ratios(viz., La/Ba, Nb/U, Nb/La and Ta/Yb) that are typical of plume-type magmas. However, the Neoproterozoic T_(DM) depleted mantle Nd model ages( ～655-919 Ma) also necessitate some involvement of a lithospheric mantle component in its genesis. High bulk-rock Fe_2 O_3~t and TiO_2 contents require the involvement of a fertile peridotitic mantle source, whereas high La/Yb(60-80) implies a control by residual garnet. Higher Rb/Sr and lower Ba/Rb suggest phlogopite as a residual phase and high Nb and lower La/Sm favour carbonatite, rather than silicate melt as metasomatising agent. Low degrees of partial melting of a primitive garnet lherzolite mantle can account for the observed REE patterns in the Palanpur UML. The Palanpur UML shares a temporal similarity to the Kerguelen plume-derived Rajmahal basalts and associated alkaline rocks from the eastern India. The tectonomagmatic

关键词： Tectonomagmatism Cretaceous Ultramafic lamprophyre Rift Kutch India

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Migrating Foreign Body Bronchus: An Unusual Case of Foreign Body Aspiration

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Case Reports in Clinical Medicine 2014年第7期3卷 407-409页

作者： Ram Badan Singh Ajay Narayan Gangopadhyay dinesh Kumar Gupta Vaibhav pandey Department of Anaesthesia Institute of Medical Sciences Banaras Hindu University Varanasi India Department of Paediatric Surgery Institute of Medical Sciences Banaras Hindu University Varanasi India

Foreign bodies [FB] in the bronchus are important causes of morbidity and mortality in paediatric age group and pose diagnostic and therapeutic challenges. Inert and smooth foreign bodies are prone for migration from one side to other due to minimal inflammatory process and easy mobility. Herein we are reporting a case of electric bulb aspiration which migrated from right main bronchus to left main bronchus.

关键词： Foreign Body Aspiration Bulb Aspiration Migrating Foreign Body

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Gangrenous Amyand’s hernia in neonate: A great clinical masquerader

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Open Journal of Pediatrics 2013年第4期3卷 364-365页

作者： Vaibhav pandey Ajar Narayan Gangopadhyay dinesh Kumar Gupta Shiv Prasad Sharma Department of Paediatric Surgery Institute of Medical Sciences Banaras Hindu University Varanasi India

Amyand’s hernia [AH] is a rare condition with presence of vermiform appendix in an inguinal hernia sac [1]. It is a rare entity with very difficult preoperative diagnosis that does not affect management. We herein report a neonatal gangrenous AH masking all features of underlying bowel gangrene. In neonates, a great masquerader can mask all the features of underlying bowel gangrene and delay in diagnosis can be detrimental in context of outcome. A high index of suspicion of Amyand’s hernia with gangrene should be kept even if child presents with irreducible hernia without features of strangulation to prevent avoidable increase in morbidity and mortality.

关键词： Hernia Gangrenous Appendix Strangulation Inguinal Appendicitis

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Correlation between hypertension and hyperglycemia among young adults in India

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World Journal of Clinical Cases 2015年第2期3卷 171-179页

作者： Tanu Midha Vinay Krishna Rishi Shukla Praveen Katiyar Samarjeet Kaur dinesh Singh Martolia Umeshwar pandey Yashwant Kumar Rao Department of Community Medicine Government Medical College Department of Cardiovascular and Thoracic Surgery LPS Institute of Cardiology Department of Endocrinology Regency Hospital Pvt. Ltd. University Institute of Health Sciences Chatrapati Shahuji Maharaj University Department of Community Medicine GSVM Medical College Department of Cardiology LPS Institute of Cardiology Department of Pediatrics GSVM Medical College

AIM: To assess the correlation between blood pressure levels and fasting plasma glucose levels among young adults attending Chatrapati Shahuji Maharaj University, Kanpur, ***: The present study was cross-sectional in nature, conducted among students in the Institute of Paramedical Sciences, Chatrapati Shahuji Maharaj University, Kanpur. Study subjects included 185 young adults. Among them, 94 were males and 91 were females, in the age group 17 to 19 ***: Mean age among males was 18.5 ± 1.5 years and among females was 17.9 ± 1.8 years. Of the total 185 study subjects, 61(32.9%) were classified as pre-diabetic and 20(10.8%) as pre-hypertensive. Mean waist circumference, systolic blood pressure and serum high density lipoprotein did not vary significantly between normoglycemic and pre-diabetic subjects. However, the mean diastolic blood pressure of pre-diabetics(82 ± 5 mm Hg) was significantly higher than normoglycemics(79 ± 6 mm Hg). Mean serum cholesterol, serum triglycerides, serum low density lipoprotein(LDL) and serum very low density lipoprotein was also higher among pre-diabetic subjects in comparison to normoglycemic subjects and the difference was statistically significant. Upon multiple linear regression analysis, it was observed that body mass index(BMI)(β = 0.149), diastolic blood pressure(β = 0.375) and serum LDL(β = 0.483) were significantly associated with fasting plasma glucose. Multiple linear regression with diastolic blood pressure as the outcome variable showed that BMI(β = 0.219), fasting blood glucose(β = 0.247) and systolic blood pressure(β = 0.510) were significantly ***: A significant prevalence of pre-diabetes and pre-hypertension in young adults is a matter of concern therefore all young adults need to be targeted for screening of diabetes and hypertension and lifestyle modification.

关键词： Adolescent Hypertension Diabetes Coprevalence India

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