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6篇 您的检索式:作者名="Rajveer"
    题名 作者 年代 出处 被引量
1电子束焊接析出硬化CuCrZr合金:模拟与实验显示文摘为了在焊接析出硬化铜铬锆(PH-CuCrZr)合金时保持结构的一致性,采用电子束焊接(EBW)工艺。对PH-CuCrZr合金零件的EBW过程进行实验研究和数值模拟,建立三维有限元模型,以预测输出响应(焊道熔透和焊道宽度)与EBW输入参数(电子束电流、加速电压和焊接速度)之间的函数关系。采用一种具有高斯热分布的圆形、园锥形复合热源模拟EBW过程的深熔焊特性。在Ansys软件中开发用户自定义函数,进行数值模拟。将数值模拟结果与实验结果进行比较,两者吻合较好。所建模型可用于EBW过程中广泛涉及复杂几何形状问题的参数研究。输入电流是对焊道熔透和焊道宽度影响最大的输入参数,其贡献率分别为44.56%和81.13%。Rajveer SINGH Sachin SINGH P.K.C.KANIGALPULA J.S.SAINI 2020Transactions of Nonferrous Metals Society of China2020,30,8:2
2Note Microwave synthesis and pharmacological activity of Mannich base cyclohexanone derivatives显示文摘We have synthesized mannich base cyclohexanone using microwave irradiation method,and studied their pharma-cological activity.Based on analytical and spectral(IR,NMR and Mass) data,a number of mono as well as double mannich base cyclohexanones have been synthesized from primary and secondary amines and formaldehyde,and then purified and characterized. The required 3-aryl-2,4-diacetyl-5-hydroxy-5-methylcyclohexanone was prepared from appropriate aldehyde and acetylacetone. The synthesized compounds were screened for analgesic activity via standard approaches,and they have shown positive analgesic activity.Ch. Rajveer B. Stephenrathinaraj Naveen Kumar Bimal S. Sudharshini Ch. Swamalatha Prasanta Kumar Choudhury 2010Journal of Chinese Pharmaceutical Sciences2010,19,4:1
3Xanthine oxidase inhibitors: a patent survey显示文摘Raj Kumar Darpan Sahil Sharma Rajveer Singh 2011Expert Opinion on Therapeutic Patents2011,,7:1
4Development of surface functionalized activated carbon fiber for control of NO and particulate matter显示文摘Rajveer Singh Rathorea Dhananjay Kumar Srivastavab Avinash Kumar Agarwalb 2010Journal of Hazardous Materials2010,,173:1
5Management of urethral strictures after masculinizing genital surgery in transgender men显示文摘Transgender men undergoing phalloplasty and metoidioplasty have a high rate of urethral stricture.Evaluation of stricture includes evaluation of symptoms and uroflow,cystoscopy,and retrograde urethrogram.Important anatomic differences between the phallus of cis-gender and transgender men increase the likelihood and complexity of treating urethral strictures in transgender men after surgery.Urethral strictures after masculinizing procedures are more likely to require open surgical treatment and recur after treatment.There is a paucity of data,but less invasive options such as dilation and urethrotomy have had minimal success.Open surgical options with a variety of techniques,including one-stage and two-stage techniques,have higher success rates in treating strictures,but there is minimal comparative data on outcomes.We present a review on management options for urethral reconstruction in transgender men and our data on urethroplasty for these patients.Ariel Zisman Joseph A.Baiocco Rajveer S.Purohit 2022Plastic and Aesthetic Research2022,9,1:0
6Spatial distribution of fossil fuel derived CO_(2) over India using radiocarbon measurements in crop plants显示文摘Examining the contribution of fossil fuel CO_(2) to the total CO_(2) changes in the atmosphere is of primary concern due to its alarming levels of fossil fuel emissions over the globe,specifically developing countries.Atmospheric radiocarbon represents an important observational constraint and utilized to trace fossil fuel derived CO_(2)(CO_(2ff))in the atmosphere.For the first time,we have presented a detailed analysis on the spatial distribution of fossil fuel derived CO_(2)(CO_(2ff))over India using radiocarbon(Δ14C)measurements during three-year period.Analysis shows that theΔ14C values are varying between 29.33‰ to-34.06‰ across India in the year 2017,where highest value belongs to a location from Gujarat while lowest value belongs to a location from Chhattisgarh.Based on the14C patterns,spatial distributions of CO_(2ff) mole fractions have been determined over India and the calculated values of CO_(2ff) mole fractions are varying between 4.85 ppm to 26.59 ppm across India.It is also noticed that the highest CO_(2ff) mole fraction is observed as 26.59 ppm from a site in Chhattisgarh.CO_(2ff) mole fraction values from four high altitude sites are found to be varied between 4.85 ppm to 14.87 ppm.Effect of sampling different crop plants from the same growing season and different crop plant organs(grains,leaves,stems)on theΔ14C and CO_(2ff) have been studied.Annual and intra seasonal variations in theΔ14C and CO_(2ff) mole fractions have also been analyzed from a rural location(Dholpur,Rajasthan).Rajveer Sharma Ravi Kumar Kunchala Sunil Ojha Pankaj Kumar Satinath Gargari Sundeep Chopra 2023Journal of Environmental Sciences2023,,2:0
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