维普中文期刊产品整合服务
14篇 您的检索式:作者名="Prateek Kumar"
    题名 作者 年代 出处 被引量
1Thermal decomposition and kinetics of plastic bonded explosives based on mixture of HMX and TATB with polymer matrices显示文摘This work describes thermal decomposition behaviour of plastic bonded explosives(PBXs) based on mixture of 1,3,5,7-tetranitro-1,3,5,7-tetrazocane(HMX) and 2,4,6-triamino-1,3,5-trinitrobenzene(TATB)with Viton A as polymer binder. Thermal decomposition of PBXs was undertaken by applying simultaneous thermal analysis(STA) and differential scanning calorimetry(DSC) to investigate influence of the HMX amount on thermal behavior and its kinetics. Thermogravimetric analysis(TGA) indicated that the thermal decomposition of PBXs based on mixture of HMX and TATB was occurred in a three-steps. The first step was mainly due to decomposition of HMX. The second step was ascribed due to decomposition of TATB, while the third step was occurred due to decomposition of the polymer matrices. The thermal decomposition % was increased with increasing HMX amount. The kinetics related to thermal decomposition were investigated under non-isothermal for a single heating rate measurement. The variation in the activation energy of PBXs based on mixture of HMX and TATB was observed with varying the HMX amount. The kinetics from the results of TGA data at various heating rates under non-isothermal conditions were also calculated by Flynn—Wall—Ozawa(FWO) and Kissinger-Akahira-Sunose(KAS)methods. The activation energies calculated by employing FWO method were very close to those obtained by KAS method. The mean activation energy calculated by FWO and KAS methods was also a good agreement with the activation energy obtained from single heating rate measurement in the first step decomposition.Arjun Singh Tirupati C.Sharma Mahesh Kumar Jaspreet Kaur Narang Prateek Kishore Alok Srivastava 2017Defence Technology(防务技术)2017,13,1:8
2latrogenic brachial artery injury during anterolateral plat- ing of humeral shaft fracture显示文摘Vishal Kumar Prateek Behera Sameer Aggarwal Umesh Kumar Meena 2013Chinese Journal of Traumatology2013,16,6:4
3Strategic planning and designing of a hospital disaster manual in a tertiary care, teaching, research and referral institute in India显示文摘BACKGROUND: As per the 'Disaster Management Act, 2005' of India, it is mandatory for government hospitals in India to prepare a disaster plan. This study aimed to prepare a disaster manual of a 1 900 bed tertiary care hospital, in consultation and involvement of all concerned stakeholders.METHODS: A committee of members from hospital administration, clinical, diagnostic and supportive departments worked on an initial document prepared according to the Act and gave their inputs to frame a final disaster manual.RESULTS: The prepared departmental standard operating procedures involved 116 people(doctors and paramedical staff), and were then synchronized, in 12 committee meetings, to produce the final hospital disaster manual.CONCLUSIONS: The present disaster manual is one of the few comprehensive plans prepared by the stakeholders of a government hospital in India, who themselves form a part of the disaster response team. It also helped in co-ordinated conduction of mock drills.Shweta Talati Prateek Bhatia Ashok Kumar A.K.Gupta Col.D Ojha 2014World Journal of Emergency Medicine2014,5,1:3
4Evaluation of functional outcome and stability of sutureless scleral tunnel fixated IOLs in children with ectopia lentis显示文摘AIM:To evaluate functional outcome of sutureless scleral tunnel intraocular lens(SSTIOL)in children with crystalline lens subluxation of more than 7 clock hours.METHODS:A prospective interventional study was conducted consisting of 45 eyes of 44 children in age group 6-18 y having>7 clock hours of lens subluxation who underwent lensectomy-vitrectomy followed by SSTIOL implantation.Primary outcome was improvement in best corrected visual acuity(BCVA)and secondary outcomes were assessment of intraocular lens(IOL)tilt using ultrasound biomicroscopy(UBM),mean change in astigmatism at last follow-up of 1 y and associated complications.RESULTS:The mean preoperative and postoperative BCVA was 1.05±0.28 and 0.64±0.45(log MAR)respectively(P=0.001)at last follow-up.The mean astigmatism preoperatively and postoperatively was-4.17±2.69 D and-1.86±1.25 D respectively(P=0.011).Significant IOL tilt(>5 degrees)was present in 5 cases.The mean percentage endothelial loss was 3.65%±1.92%.The most serious complication encountered was retinal detachment seen in 2 cases.CONCLUSION:SSTIOL implantation provides efficient visual rehabilitation in children provided there is stringent case selection.We recommend caution in children having white-to-white distance>12 mm and presence of peripheral retinal degenerations.Anju Rastogi Prateek Kumar Shweta Dhiman Manisha Mishra Kamlesh AnAND Ankita Bhardwaj 2020International Journal of Ophthalmology(English edition)2020,13,1:2
5Elbow dislocation with ipsilateral diaphyseal forearm bone fracture: A rare injury report with literature review显示文摘Vijay Goni Prateek Behera Umesh Kumar Meena Nirmal raj Gopinathan Narendranadh Akkina R.H.H. Arjun 2015Chinese Journal of Traumatology2015,18,2:2
6Distal femoral physeal crush injury with metaphyseal comminution - A report of two cases and a new perspective to physeal injury显示文摘一根长骨头的 physis 可以变得如果它创伤地沿着它的长轴被装载,在 metaphysis 和 epiphysis 之间夹了并且压碎。如此的 physeal 损害可以导致象尖畸形和生长限制一样的复杂并发症并且因此,如此的损害的管理要求与远侧的大腿骨的 physeal 压碎损害的足够的计划和专心的 execution.Two 病人用戒指 fixator 被对待以便一枚戒指有电线通过大腿骨的柄通过 epiphysis 和其它。在桌子图象 intensifier 上,压碎的 physis 的控制分心被做带类似于相反的手足的 physis 的高度。病人们被跟随在上面为超过二年临床上并且放射学地。没有操作手足的临床或放射学的尖畸形。MRI 扫描戒指 fixator 获得的二颗 patients.The 分心在也没有 physeal 酒吧形成显示出未经触动的 physes 显得规定了宽大呼吸空间到压缩 physis 并且生长潜力可能被过程重获。然而,二年是后续的相对短的持续时间和更长的持续时间的进一步的后续并且在病人的更大的数字被需要计量我们使用的技术的实际有效性。Prateek Behera Nirmal Raj Gopinathan Avinash Kumar Balaji Saibaba Pebam Sudesh Rakesh John 2017Chinese Journal of Traumatology2017,20,6:1
7A fuzzy logic algorithm derived mechatronic concept prototype for crop damage avoidance during eco-friendly eradication of intra-row weeds显示文摘Crop damage during the intra-row weed eradiation is one of the biggest challenges in intercultural agricultural operations.Several available mechanical systems provide effective weeding but result in excess crop damage.On the other hand,chemical based systems have been raising serious environmental and food concerns.This study presents development of a cost-effectivemechatronic prototype for intra-rowweeding operation.The primary focus was on incurring minimal crop damage.The system integrates time of flight and inductive sensing into fuzzy logic algorithm for electronic control of a four-bar linkage mechanism(FBLM).The crank of FBLM was connected to the vertical rotary weed control shaft with weeding blades.The crop sensing triggers the electronic control to laterally shift the control shaft away from crop,proportional to the forward speed and soil conditions.The developed algorithm incorporates varied conditions of soil,forward speed,and plant spacing to calculate dynamic lateral shift speed(SRPM).The prototype was evaluated to determine the relationships between the operating conditions and electronic control parameters.Moreover,the plant damage was assessed under varied conditions of plant spacing,forward speeds,soil cone index,operational depth and electronic control parameters.The derived SRPM was established as the ultimate governing factor for avoiding crop damage that varied significantlywith electronic response time and soil strength(P<0.05).Plant damage increased significantly under higher forward speeds and lower plant spacing(P<0.05).Preliminary field evaluation of the developed prototype showed a significant potential of this system for effective control on weeds(>65%)and crop damage(<25%).Satya Prakash Kumar V.K.Tewari Abhilash K.Chandel C.R.Mehta Brajesh Nare C.R.Chethan Kaustubh Mundhada Prateek Shrivastava Chanchal Gupta Smrutilipi Hota 2020Artificial Intelligence in Agriculture2020,,1:1
8Multiob-jective placement of electronic components using evolutionary algorithms显示文摘Kalyanmoy Deb Prateek Jain Naveen Kumar Gupa 2004IEEE Transactions on Components and Packaging Technologies2004,27,3:1
9Bilateral central acetabular fracture dislocation in a young patient due to seizure activity: a case report and review of the literature显示文摘因为直接损伤或因为失衡的有力的肌肉收缩,各种各样的肌与骨的损害是癫痫的众所周知的复杂并发症。我们由于大脑的 neurocysticercosis 导致的抓住活动报导非创伤的双边的中央 acetabular 破裂脱臼的一个案例,它保存地被管理并且获得了合理好结果。这个案例在没有任何以前的历史,经历了癫痫的攻击的年轻 non-osteoporotic 病人强调合适的评估的重要性。提到这些病人应该彻底地神经病学地被检查发现准确病原学并且应该因此被对待阻止未来抓住活动也是必要的。Umesh Kumar Meena Devi Sahai Meena Prateek Behera Om Singh Meel 2014Chinese Journal of Traumatology2014,17,6:1
10Comparison of conventional and Hang-back methods of inferior oblique recession in V-pattern strabismus with inferior oblique overaction显示文摘AIM:To compare outcomes of conventional and Hangback methods of inferior oblique(IO)recession in V-pattern strabismus with inferior oblique overaction(IOOA).METHODS:Comparative randomized study was conducted consisting of 50 patients,age 6 to 35 y having V-pattern strabismus[>15 prism diopter(PD)]with IOOA.They were divided equally in two groups and underwent IO recession,group A by conventional method and group B by Hang-back method.Parameters evaluated were reduction in V-pattern and IOOA,shift in torsion,improvement in binocular status.Success was a residual V-pattern of less than 10 PD at 1 y of follow up.RESULTS:The mean V-pattern preoperatively and postoperatively at 1 y was 24±5.4 PD and 4.2±3.51 PD in group A and 23.44±6.44 PD and 5.76±3.8 PD in group B respectively.The mean reduction in V-pattern was 20±6.78 PD in group A and 18.2±5.48 PD in group B.The mean correction of IOOA was 18.48±3.13 PD in group A and 16±2.93 PD in group B.Mean shift in extorsion was 3.08±1.8 degree in group A and 3.72±2.14 degree in group B.CONCLUSION:Both the procedures achieve a significant and comparable reduction in V-pattern and IOOA.Hang-back recession being a landmark free surgery eliminates the need for intrascleral suturing thereby reducing the risk of scleral perforation with possible postoperative adjustment of muscle.It may be considered as a good alternative for IO recession in patients of V-pattern strabismus with mild to moderate amount of IOOA.Kamlesh AnAND Ankita Bharadwaj Shweta Dhiman Yashpal Goel Anju Rastogi Richa Agarwal Manisha Misthra Prateek Kumar 2020International Journal of Ophthalmology(English edition)2020,13,6:1
11Axenfeld-Reiger syndrome: A search for the missing links显示文摘BACKGROUND Axenfeld-Rieger syndrome(ARS)is a rare cause of congenital glaucoma and may result in loss of vision.ARS is mostly autosomal dominant in nature characterized by developmental abnormalities in the angle of anterior chamber and iris of the eye,also associated with structural abnormalities in the body.AIM To study and observe the demographics and clinical findings in a very rare ocular disease known as ARS.METHODS Case records of symptomatic patients attending Ophthalmology outpatient department and diagnosed to have ocular hypertension or glaucoma in 3 years from March 2017 to March 2020 were evaluated to search for cases diagnosed with ARS.Records of all patients diagnosed with ARS were then analysed for demographic and clinical characterization as well as management and success of therapy.RESULTS Eight out of ten patients with positive clinical signs were symptomatic and had glaucoma.One of these patients had limbal stem cell deficiency and another had vernal keratoconjunctivitis.CONCLUSION Clinical characterization of ARS is important for making a definitive diagnosis and determining prognosis.Arvind Kumar Morya Prasanna Venkatesh Ramesh Sony Sinha Prateek Nishant Nazia Nain Ravi NaikRamavath Chetana Gone Ripunjay Prasad 2023World Journal of Clinical Cases2023,11,29:0
12Transaminitis is an indicator of mortality in patients with COVID-19:A retrospective cohort study显示文摘BACKGROUND Since its discovery in Wuhan,China in December of 2019,the novel coronavirus has progressed to become one of the worst pandemics seen in the last 100 years.Recently,there has been an increased interest in the hepatic manifestations of coronavirus disease 19(COVID-19).AIM To describe the demographic and clinical characteristics of COVID-19 positive patients and study the association between transaminitis and all-cause mortality.METHODS This is a descriptive retrospective cohort study of 130 consecutive patients with a positive COVID PCR test admitted between March 16,2020 to May 14,2020 at a tertiary care University-based medical center.The Wilcoxon-rank sum test and paired t-test were used for comparing non-parametric and parametric continuous variables respectively and a multivariable logistic regression models to study the association between transaminitis and mortality using SAS version 9.4(SAS Institute,Cary,NC,United States).RESULTS Out of the 130 patients,73(56%)patients were found to have transaminitis and 57(44%)did not.When compared to patients without transaminitis,the transaminitis group was found to have a higher median body mass index(30.2 kg/m2 vs 27.3 kg/m2,P=0.04).In the multivariate analysis those with transaminitis were found to have 3.4 times higher odds of dying as compared to those without transaminitis adjusting for gender,the Age-adjusted Charlson Comorbidity Index and admission to the intensive care unit(P=0.03).CONCLUSION Our study showed that transaminitis on admission was associated with severe clinical outcomes such as admission to the intensive care unit,need for mechanical ventilation,and mortality.Vishnu Charan Suresh Kumar Prateek Suresh Harne Samiran Mukherjee Kashvi Gupta Umair Masood Anuj Vikrant Sharma Jivan Lamichhane Amit Singh Dhamoon Bishnu Sapkota 2020World Journal of Hepatology2020,12,9:0
13Nutrition interventions and clinical outcomes of pregnant women with gestational diabetes mellitus: More than meets the eye显示文摘In the retrospective study by Luo et al regarding clinical outcomes in gestational diabetes mellitus(GDM),the results are statistically significant in favour of the benefits of individualized nutrition interventions enumerated therein.The study has provided important evidence to improve maternal and child health in the Asian population.The methods,however,appear to have considerable limi-tations,wherein the time point of diagnosis of GDM,severity of GDM,selection bias,compliance to therapy,important maternal covariates,observable microvascular abnormalities and the confounding effect of added insulin have not been considered.We have provided suggestions to improve the external validity of the study,including the use of Equator Network reporting guidelines and inclusion of overweight and obese patients in future studies.Sony Sinha Prateek Nishant Ranjeet Kumar Sinha Arvind Kumar Morya Ripunjay Prasad 2024World Journal of Diabetes2024,15,1:0
14Humeral shaft fracture with ipsilateral shoulder dislocation显示文摘尽管肩膀关节的肱骨的柄或脱臼的骨折是普通损害, simutaneous 损害是稀罕的。我们在场如此的一个盒子与在骨胳的损害上占主导地位的头损害结合了。手术后的康复被头损害减慢。当与这稀罕损害管理病人时,这份案例报告一些问题使我们知道并且帮助我们更好理解管理选择。另外。Prateek Behera Vishal Kumar SameerAggarwal 2014Chinese Journal of Traumatology2014,17,1:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费