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Coronaviruses:An overview with special emphasis on COVID-19 outbreak with musculoskeletal manifestations

World Journal of Orthopedics 2021年第9期12卷 620-628页

作者： Sabir Ali ajai singh Nayeem Sharief Manish Yadav Salma Siddiqui Vaishnavi Pandey Archana Raikwar Anamika singh Department of Paediatric Orthopaedics King George’s Medical UniversityLucknow 226003Uttar PradeshIndia

An acute respiratory illness caused by a novel coronavirus,namely,severe acute respiratory syndrome coronavirus 2,the virus that causes coro-navirus disease 2019(COVID-19),began spreading across China in late December *** disease gained global attention as it spread *** the COVID-19 pandemic began,many studies have focused on the impact of the disease on conditions such as diabetes,cardiovascular disease,pulmonary disorders,and renal ***,few studies have focused on musculoskeletal disorders related to COVID-19 *** this review,we update the current knowledge on the coronavirus with special reference to its effects during and after the pandemic on musculoskeletal aliments,which may inform clinical practice.

关键词： Coronaviruses COVID-19 Musculoskeletal Infection Pandemic Orthopaedics

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印度中央邦马尔瓦地区利用人工神经网络和回归模型预测蒸腾量的比较(摘选)

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农业工程 2013年第2期3卷 104-106,80页

作者： ajai singh Jain VK Jayanta Dutta 地区研究站(老冲积区)

蒸发是水循环的一个重要组成部分,对蒸发量的估算是对水资源和灌溉水量有效利用的一个重要手段。该研究旨在利用多元线性回归模型、多层感知器(MLP)和人工神经网络(ANN)模型模拟印度中央邦马尔瓦地区周蒸发量。利用4种不同天气变量组合... 详细信息

蒸发是水循环的一个重要组成部分,对蒸发量的估算是对水资源和灌溉水量有效利用的一个重要手段。该研究旨在利用多元线性回归模型、多层感知器(MLP)和人工神经网络(ANN)模型模拟印度中央邦马尔瓦地区周蒸发量。利用4种不同天气变量组合训练神经网络模型。多元线性回归模型只将最高温和相对湿度作为输入值,但是模拟结果不令人满意。MLP模型采用的数据集包括最高和最低温度、风速和相对湿度,在训练和验证中都取得了比较好的结果。MLP模型可以用来模拟周开放式蒸发皿蒸发量,估算缺失数据,并可以作为替代模型以验证蒸发量测定值。降雨量数据并不能改善模型性能。

关键词：蒸发皿蒸发量多层感知器模型多元线性回归人工神经网络降雨量模拟

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Atomic Processes in Emission Characteristics of a Lithium Plasma Plume Formed by Double-Pulse Laser Ablation

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Plasma Science and Technology 2013年第3期15卷 204-208页

作者： V.SIVAKUMARAN ajai KUMAR R.K.singh V.PRAHLAD H.C.JOSHI Institute for Plasma Research

High resolution spectral analysis of lithium plasma formed by single and double laser ablation has been undertaken to understand the plume-laser interaction, especially at the early stages of the plasma plume. In order to identify different atomic processes in evolving plasma, time resolved spectral emission studies at different inter-pulse delays have been performed for ionic and neutral lithium lines emitting from different levels. Along with the enhancement in emission intensity, a large line broadening and spectral shift, especially in the case of excited state transition Li I 610.3 nm have been observed in the presence of the second pulse. This broadening and shift gradually decrease with increasing time delay. Another interesting feature is the appearance of a multi-component structure in the ionic line at 548.4 nm and these components change conversely into a single structure at the later stages of the plasma. The multi-component structures are correlated with the presence of different velocity （temperature） distributions in non-LTE conditions. Atomic analyses by computing photon emissivity coefficients with an ADAS code have been used to identify the above processes.

关键词： laser ablation double pulse

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Assessment of long-term climate variability and its impact on the decadal growth of horticultural crops in central India

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Ecological Processes 2022年第1期11卷 862-889页

作者： Gaurav Sharma Amita Sharma Nishant Kumar Sinha Om Prakash Sharma Ashutosh singh ajai Kumar Pandey Abhishek Kumar Sudhir Kumar Trivedi Bharti Sao Mukesh Kumar Sahu College of Horticulture and Forestry Rani Lakshmi Bai Central Agricultural UniversityJhansiUttar Pradesh 284003India Department of Environmental Science Rajmata Vijayaraje Scindia Krishi VishwavidyalayaGwaliorMadhya Pradesh 474002India Division of Soil Physics Indian Institute of Soil ScienceBhopalMadhya Pradesh 462038India Department of Floriculture and Landscape Architecture Indira Gandhi Krishi VishwavidyalayaRaipurChhattisgarh 492012India

Background:The impact of climate change on horticultural production is of utmost concern *** such vulnerable region of horticultural importance is the Madhya Pradesh state in the central part of *** is crucial to analyse the long-term trend in climatic variations and its effect on horticultural crop ***,this study focuses on detecting trends in mean annual precipitation and temperature of 115 years for the 15 districts covering all the regions of the state as well as projections of all the Representative Concentration Pathway(RCP)climatic scenarios for 2050 and 2080 of Madhya Pradesh *** decadal(2010–2020)insight into the area and production of horticultural crops is undertaken which will help forecasting the future growth *** a better insight,case study on four horticultural crops is undertaken to assess their decadal growth trend vis-à-vis climate parameters in these 15 ***:The Mann–Kendall test for 1901–2016 and Sen’s slope indicated a non-significant change in long-term trend for precipitation except for increasing change in Khargone and decreasing change in Rewa ***-cant increasing trend of average temperature is obtained for Hoshangabad,Jabalpur,Sagar and Rewa *** Sen’s slope indicated an increase of 0.005 to 0.009℃for maximum temperature and 0.005 to 0.012℃for minimum temperature *** projections of all the RCP climate scenarios for the years 2050 and 2080 indicated non-significant variation in precipitation but an increase in maximum(1.4 to 4.1℃)and minimum(1.45 to 4.65℃)annual *** increasing trend in area and production for horticultural crops is also observed in central India for the study *** is yield increase in all the crops selected in case study except for potato,which recorded a decreased yield between the years 2010–***:The Mann–Kendall test and projections indicate towards climate change with a temperature *** the decad

关键词： Climate change Horticulture Madhya Pradesh Precipitation Temperature Trend analysis

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