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Journal of Forensic Science and Medicine 2024年第2期10卷 75-83页

作者： vaibhav sharma Abhishek R.Rai Divyansh Jain Poonam Kumari Varad Nagar Anubhav Singh Kumud Kant Awasthi Archana Gautam Tina sharma Mahipal Singh Sankhla Anuj sharma Department of Forensic Science Vivekananda Global UniversityJaipurRajasthanIndia School of Forensics Risk Management and National SecurityRashtriya Raksha UniversityLavadGujaratIndia Department of Life Sciences Vivekananda Global UniversityJaipurRajasthanIndia Department of Forensic Science UIAHSChandigarh UniversityMohaliPunjabIndia University Centre for Research and Development Chandigarh UniversityMohaliPunjabIndia Department of Forensic Science ITM UniversityGwaliorM.P.India

Background:Development of obscured fingerprints on a diverse range of surfaces is a crucial aspect of forensic *** and Objectives:In this particular study,the utilization of Syzygium cumini(L.)Skeels(Jamun)seed powder was examined for the purpose of revealing hidden fingerprints on a variety of surfaces,including both permeable and impermeable *** and Methods:The seed powder was extracted using a simple process and was analysed using multiple analytical *** efficacy of the jamun seed powder in developing latent fingerprints was ***:The findings of this investigation demonstrate that the jamun seed powder was capable of producing fingerprint patterns of exceptional quality and clarity on numerous ***:This research highlights the potential use of jamun seed powder as a practical and effective alternative for the development of hidden fingerprints in forensic investigations,while also providing cost-effectiveness.

关键词： Forensic investigation jamun seed latent fingerprints medicinal value

Behavior of ring footing resting on reinforced sand subjected to eccentric-inclined loading

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第2期10卷 347-357页

作者： vaibhav sharma Arvind Kumar Dr.B.R.Ambedkar National Institute of Technology Jalandhar144011India

Ring footings are suitable for the structures like tall transmission towers, chimneys, silos and oil *** types of structures are susceptible to horizontal loads(wind load) in addition to their dead *** the literature, very little or no effort has been made to study the effect of ring footing resting on reinforced sand when subjected to eccentric, inclined and/or eccentric-inclined loadings. This paper aims to study the behavior of ring footing resting on loose sand and/or compacted randomly distributed fiberreinforced sand(RDFS) when subjected to eccentric(0 B, 0.05 B and 0.1 B, where B is the outer diameter of ring footing), inclined(0°,5°,10°, 15°,-5°,-10° and-15°)and eccentric-inclined loadings by using a finite element(FE) software PLAXIS 3 D. The behavior of ring footing is studied by using a dimensionless factor called reduction factor(RF). The numerical model used in the PLAXIS 3 D has been validated by conducting model plate load tests. Moreover, an empirical expression using regression analysis has been presented which will be helpful in plotting a load-settlement curve for the ring footing.

关键词： Soil reinforcement Ring footing Numerical method Randomly distributed fibers Load inclination Load eccentricity Model tests Reduction factor(RF)

Employing nanoparticle tracking analysis of salivary neuronal exosomes for early detection of neurodegenerative diseases

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Translational Neurodegeneration 2023年第1期12卷 791-800页

作者： vaibhav sharma Fredrik Nikolajeff Saroj Kumar Department of Health Education and TechnologyLulea University of TechnologyLuleaSweden Department of Biophysics All India Institute of Medical SciencesNew DelhiIndia

Neurodegenerative diseases are a set of progressive and currently incurable diseases that are primarily caused by neuron *** diseases often lead to cognitive impairment and *** is now well recognized that molecular events precede the onset of clinical symptoms by *** the past decade,intensive research attempts have been aimed at the early diagnosis of these ***,exosomes have been shown to play a pivotal role in the occurrence and progression of many diseases including cancer and neurodegenerative ***,because exosomes can cross the blood-brain barrier,they may serve as a diagnostic tool for neural *** this review,we detail the mechanisms and current challenges of these diseases,briefly review the role of exosomes in the progression of neurodegenerative diseases,and propose a novel strategy based on salivary neuronal exosomes and nanoparticle tracking analysis that could be employed for screening the early onset of neurodegenerative diseases.

关键词： Exosomes Parkinson’s disease Alzheimer’s disease Neurodegenerative disease Diagnosis Prognosis Extracellular vesicles Nanoparticle tracking analysis

Implications of Climate Change on Streamflow of a Snow-Fed River System of the Northwest Himalaya

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Journal of Mountain Science 2013年第4期10卷 574-587页

作者： vaibhav sharma Varunendra Dutta MISHRA Pawan Kumar JOSHI Snow and Avalanche Study Establishment Chandigarh 160036 India TERI University Institutional AreaDelhi 110070 India

Air temperature and snow cover variability are sensitive indicators of climate change. This study was undertaken to forecast and quantify the potential streamflow response to climate change in the Jhelum River basin. The implications of air temperature trends （＋0.11℃decade） reported for the entire north-west Himalaya for past century and the regional warming （＋0.7℃/decade） trends of three observatories analyzed between last two decades were used for future projection of snow cover depletion and stream flow. The streamflow was simulated and validated for the year 2007-2008 using snowmelt runoff model （SRM） based on in-situ temperature and precipitation with remotely sensed snow cover area. The simulation was repeated using higher values of temperature and modified snow cover depletion curves according to the assumed future climate. Early snow cover depletion was observed in the basin in response to warmer climate. The results show that with the increase in air temperature, streamfiow pattern of Jhelum will be severely affected. Significant redistribution of streamflow was observed in both the scenarios. Higher discharge was observed during spring-summer months due to early snowmelt contribution with water deficit during monsoon months. Discharge increased by 5%-40% during the months of March to May in 2030 and 2050. The magnitude of impact of air temperature is higher in the scenario-2 based on regional warming. The inferences pertaining to change in future streamflow pattern can facilitate long term decisions and planning concerning hydro-power potential, waterresource management and flood hazard mapping in the region.

关键词： Snowmelt Snow cover depletion curve(SCDC) Climate change Global warming Streamflow SRM Jhelum

Snow Cover Variation and Streamflow Simulation in a Snow-fed River Basin of the Northwest Himalaya

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Journal of Mountain Science 2012年第6期9卷 853-868页

作者： vaibhav sharma V.D.MISHRA P.K.JOSHI Snow and Avalanche Study Establishment Him ParisarSector 37AChandigarh 160036India TERI University New Delhi-110070India

Snowmelt is an important component of any snow-fed river *** Jhelum River is one such transnational mountain river flowing through India and *** basin is minimally glacierized and its discharge is largely governed by seasonal snow cover and ***,accurate estimation of seasonal snow cover dynamics and snowmeltinduced runoff is important for sustainable water resource management in the *** present study looks into spatio-temporal variations of snow cover for past decade and stream flow simulation in the Jhelum River *** cover extent(SCE) was estimated using MODIS(Moderate Resolution Imaging Spectrometer) sensor *** Difference Snow Index(NDSI) algorithm was used to generate multi-temporal time series snow cover *** results indicate large variation in snow cover distribution pattern and decreasing trend in different sub-basins of the Jhelum *** relationship between SCE-temperature,SCE-discharge and discharge-precipitation was analyzed for different seasons and shows strong *** streamflow simulation of the entire Jhelum basin Snow melt Runoff Model(SRM) used.A good correlation was observed between simulated stream flow and in-situ *** monthly discharge contribution from different sub-basins to the total discharge of the Jhelum River was estimated using a modified version of runoff model based on temperature-index approach developed for small *** power - an indicator of the erosive capability of streams was also calculated for different sub-basins.

关键词： Snow cover extent(SCE) Streamflow Snow Melt Runoff Model(SRM) Normalized Difference Snow Index(NDSI) Jhelum basin Moderate Resolution Imaging Spectrometer(MODIS)

Surgical treatment of proximal humerus fractures using PHILOS plate

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Chinese Journal of Traumatology 2014年第5期17卷 279-284页

作者： GN Kiran Kumar Gaurav sharma Vijay sharma vaibhav Jain Kamran Farooque Vivek Morey Department of Orthopaedics All India Institute of Medical Sciences New Delhi 110029 India

Objective：To evaluate functional outcome and complications of open reduction and internal fixation with proximal humeral internal locking system （PHILOS） plate for proximal humerus ***：We reviewed 51 patients who underwent open reduction and internal fixation with PHILOS plate between the years 2007 to *** were 35 men and 16 women with a mean age of 38 years （range 24-68）.There were 41 patients in the age group of ＜60 years and 10 patients in the age group of ＞60 *** to Neer classification system,8,15 and 23 patients had 2-part,3-part,and 4-part fractures,respectively and 5 patients had 4-part fracture *** surgeries were carried out at our tertiary care trauma *** evaluation of the shoulder at final follow-up was done using Constant-Murley ***：The mean follow-up period was 30 months （range 12-44 months）.Two patients were lost to *** the remaining 49 patients,all fractures were united clinically and *** mean time for radiological union was 12 weeks （range 8-20 weeks）.At the final follow-up the mean Constant-Murley score was 79 （range 50-100）.The results were excellent in 25 patients,good in 13 patients,fair in 6 patients and poor in 5 *** the follow-up,four cases of varus malunion,one case of subacromial impingement,one case of deep infection,one case of intraarticular screw penetration and one case of failure of fixation were *** cases of avascular necrosis,hardware failure,locking screw loosening or nonunion were ***：PHILOS provides stable fixation in proximal humerus *** prevent potential complications like avascular necrosis,meticulous surgical dissection to preserve vascularity of humeral head is necessary.

关键词： Proximal humerus fracture Fracture fixation, internal Proximal humeral internal locking system

On-table reconstruction and fixation of Mason type III radial head fractures

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Chinese Journal of Traumatology 2015年第5期18卷 288-292页

作者： G.N. Kiran Kumar Gaurav sharma Kamran Farooque Vijay sharma vaibhav Jain Ravijot Singh Vivek Morey Department of Orthopaedics All India Institute of Medical Sciences New Delhi 110029~ India

Purpose： To evaluate the functional and radiological outcome of comminuted radial head fractures, which were not amenable for classical open reduction with internal fixation, treated by on-table reconstruction and fixation using low profile plates. Methods： We reviewed 6 patients of Mason type Ill radial head fractures treated by on-table recon- struction technique between 2011 and 2013. There were 5 men and 1 woman with a mean age of 35 years （range 25-46 years）. All surgeries were carried out at our tertiary care level 1 trauma centre within a mean of 3 days （range 1-8 days） from date of injury using on-table reconstruction technique. The functional outcome was measured using elbow functional rating index described by Broberg and Morrey and the patient-based Disabilities of the Arm, Shoulder and Hand （DASH） outcome measure. Results： The mean follow-up period was 25 months, The average elbow flexion was 135~ （range 125~ -140~） and the average flexion contracture was 5~ （range 0-10~）. The average supination and pronation was 75~ （range ？0o-80~） and 70~ （range 65^-82~） respectively. According to Broberg and Morrey scoring system, the average score was 90 points （range 75-100）. The mean DASH score was 2.49 points, Conclusion： On-table reconstruction and fixation of comminuted radial head fractures using low profile plates is a reasonable option. The reconstructed radial head acts as spacer and provides reasonably good results and no surgical intervention is required for asymptomatic nonunion of these fractures regardless of the radiological findings.

关键词： On-table reconstruction technique Radial head fractures Bone plates

Numerical simulation of square shaped particle sedimentation

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Particuology 2024年第1期84卷 107-116页

作者： Govind sharma Bahni Ray Department of Mechanical Engineering Indian Institute of Technology DelhiHauz KhasNew Delhi110016India

Direct numerical simulations of square particle sedimentation in a viscous incompressible fluid are presented to examine the effects of sharp edges for various particle-to-fluid density ratios and different initial inclination *** settling process exhibits four different motion regimes;non-oscillatory,non-uniform centered oscillatory,uniform off-centered oscillatory,and non-uniform off-centered(irregular)*** moderate density ratios,we observe that the rotational motion of settling square particle varies with the initial inclination *** employ Dynamic Time Warping and Fast Fourier Transform to analyze translational and angular *** systems are described using phase-space plots,and a chaotic phenomenon is observed at a higher density ratio.

关键词： Sedimentation Distributed Lagrangian multiplier Phase synchronization Oscillations

Sequential decay analysis of^(235)U(n^(th),f)reaction using fragmentation approach

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Chinese Physics C 2024年第6期48卷 145-154页

作者： Nitin sharma Ashutosh Kaushik Manoj K.sharma School of Physics and Materials Science Thapar Institute of Engineering&TechnologyPatiala-147004PunjabIndia

Numerous experimental and theoretical observations have concluded that the probability of the three fragment emission(ternary fission)or binary fission increases when one proceeds towards the heavy mass region of nuclear periodic *** factors affect fragment emission,such as the shell effect,deformation,orientation,and fissility *** and ternary fissions are observed for both ground and excited states of the *** collinear cluster tripartition(CCT)channel of the^(235)U(n^(th),f)reaction is studied,and we observe that the CCT may be a sequential or simultaneous emission *** date,different approaches have been introduced to study the CCT process as a simultaneous or sequential process,but the decay dynamics of these modes have not been not fully *** the three fragments of the sequential process and exploring their related dynamics using an excitation energy dependent approach would be of further ***,in this study,we investigate the sequential decay mechanism of the^(235)U(n^(th),f)reaction using quantum mechanical fragmentation theory(QMFT).The decay mechanism is considered in two steps,where initially,the nucleus splits into an asymmetric *** the second step,the heavy fragment obtained in the first step divides into two *** I analysis is conducted by calculating the fragmentation potential and preformation probability for the spherical and deformed choices of the decaying *** most probable fragment combination of stage I are identified with respect to the dips in the fragmentation structure and the corresponding maxima of the preformation probability(P0).The light fragments of the identified decay channels(obtained in step I)agree closely with the experimentally observed *** excitation energy of the decay channel is calculated using an iteration *** excitation energy is shared using an excitation energy dependent level density *** obtained excitation

关键词： fission cluster radioactivity ternary fission spontaneous fission cluster model total kinetic energy preformation probability

Comprehending drivers of land use land cover change from 1999 to 2021 in the Pithoragarh District,Kumaon Himalaya,Uttarakhand,India

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Journal of Mountain Science 2024年第7期21卷 2394-2407页

作者： Mahika PHARTIYAL Sanjeev sharma Centre for the Study of Regional Development Jawaharlal Nehru UniversityNew Delhi 110067India

The Himalayan region has been experiencing stark impacts of climate change,demographic and livelihood pattern *** analysis of land use and land cover(LULC)change provides insights into the shifts in spatial and temporal patterns of *** changes are the combined effects of anthropogenic and natural/climatic *** present study attempts to monitor and comprehend the main drivers behind LULC changes(1999-2021)in the Himalayan region of Pithoragarh district,*** district is a border district,remotely located in the north-east region of Uttarakhand,*** study draws upon primary and secondary data sources.A total of 400 household surveys and five group discussions from 38 villages were conducted randomly to understand the climate perception of the local community and the drivers of *** imagery,CRU(Climatic Research Unit)climate data and climate perception data from the field have been used to comprehensively comprehend,analyze,and discuss the trends and reasons for LULC *** and remote sensing techniques were used to construct LULC *** multifaceted approach ensures comprehensive and corroborated *** classes were identified and formed viz-cultivation,barren,settlement,snow,and *** show that vegetation and builtup have increased whereas cultivation,barren land,and snow cover have *** study further aims to elucidate the causes behind LULC changes in the spatially heterogeneous region,distinguishing between those attributed to human activities,climate shifts,and the interconnected impacts of *** study provides a comprehensive picture of the study area and delivers a targeted understanding of local drivers and their potential remedies by offering a foundation for formulating sustainable adaptation policies in the region.

关键词： Himalayan region Land use/land cover change Anthropogenic factors Climate change Socioecological system