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| 1 | 采用延性损伤模型和数值方法预测Ni-Cr基合金在温成形条件下的断裂极限显示文摘为了确定IN625合金的安全成形和断裂极限,在300和673 K下分别进行拉伸成形和深拉延成形实验。将实验获得的基于应力的断裂成形极限图(FFLD)转变为基于应力的σ-FFLD和有效塑性应变(EPS)跟三轴度(η)的关系曲线,以消除断裂极限对应变的过度依赖。为了预测断裂极限,校准7种不同的损伤模型。结果显示,Oh模型对断裂轨迹的预测能力最好,绝对误差最小。虽然实验得到的断裂极限仅用于数值分析,但没有一个损伤模型预测整个应力三轴度范围(0.33<η<0.66)的断裂应变。在不同的温度和润滑条件下深拉延成形圆柱杯,深拉延工艺窗口有助于确定起皱、安全和断裂区域。在润滑条件下,673 K时达到最大的拉延比2。利用Hill 1948各向异性屈服函数对拉伸成形和深拉延成形过程的数值预测结果均在可接受的误差范围内。 | Ayush MORCHHALE Anand BADRISH Nitin KOTKUNDE Swadesh Kumar SINGH Navneet KHANNA Ambuj SAXENA Chetan NIKHARE | 2021 | Transactions of Nonferrous Metals Society of China2021,31,8: | 3 |
| 2 | Noradrenaline vs. terlipressin in the treatment of hepatorenal syndrome: A randomized study显示文摘 | Virendra Singh Souvik Ghosh Baljinder Singh Pradeep Kumar Navneet Sharma Ashish Bhalla A.K. Sharma N.S. Choudhary Yogesh Chawla C.K. Nain | 2012 | Journal of Hepatology2012,,6: | 2 |
| 3 | Circulatory and hepatic failure at admission predicts mortality of severe scrub typhus patients: A prospective cohort study显示文摘Objective:To study the spectrum and outcome of severe scrub typhus in adult patients and to predict the hospital mortality by organ failure on admission.Methods:This was a prospective observational cohort study conducted between July 2017 and October 2020 at the medical emergency centre of PGIMER,Chandigarh,India.One hundred and twenty-six patients aged≥13 years were diagnosed with scrub typhus.Severe disease was defined as the presence of organ failure based on the Sequential Organ Failure Assessment(SOFA)score on admission.Results:About two-thirds of the patients were from geographic regions outside the endemic sub-Himalayan belt.Fever(99.21%)and dyspnea(79.36%)were the most frequent complaints.Respiratory failure(81.75%)was the most common organ failure,followed by hepatic(52.38%),coagulative(47.62%),circulatory(33.33%),renal(21.43%),and cerebral dysfunction(13.49%).The median(Q1,Q3)SOFA score was 8(6,9),and 48.41%of the patients had a quick-SOFA score≥2.Organ supports with invasive ventilation(40.48%),vasopressors(36.51%),and renal replacement therapy(7.14%)were frequently required.The in-hospital mortality was 11.90% and was independently predicted by circulatory and hepatic failures on multivariate logistic regression(OR 11.12,95%CI 1.73-71.31 and OR 8.49,95%CI 1.18-61.41,respectively).Conclusions:Most patients had pulmonary dysfunction;circulatory or hepatic failure on admission strongly predicts death. | Ashok Kumar Pannu Atul Saroch Saurabh Chandrabhan Sharda Manoj Kumar Debnath Manisha Biswal Navneet Sharma | 2021 | Asian Pacific Journal of Tropical Medicine2021,14,5: | 2 |
| 4 | Altered Redox Status in Erythrocytes From Hypertensive Subjects: Effect of(-)Epicatechin显示文摘Hypertension is a major problem worldwide. There is much evidence to suggest that reactive oxygen species (ROS) radical may play a role in the development of organ damage associated with cardiovascular disease and hypertension. (-)Epicatechin, a member of tea catechins belonging to flavonoid group, is known to be a potent anti-oxidant. The study has been undertaken to evaluate the effect of (-)epicatechin on markers of oxidative stress: reduced glutathione (GSH) and membrane sulfhydryl (-SH) groups in erythrocytes from hypertensive patients. The effect of (-)epicatechin was also compared with a known anti-oxidant L-ascorbic acid. The erythrocyte intracellular GSH content and membrane -SH group content were significantly (P<0.01) decreased in hypertensive subjects. In vitro incubation with (-)epicatechin caused an increase in GSH and -SH content, the effect was more pronounced in hypertensive erythrocytes. Similar results were obtained with L-ascorbic acid. The observed decrease in the level of GSH and -SH groups in hypertension is an indicator of oxidative stress condition. Observation of an increase in red cell GSH content and the protection of membrane -SH group oxidation by (-)epicatechin in hypertensive subjects is a convincing reason to suggest that high dietary intake of foods rich in catechins may help to reduce oxidative stress and concomitant free radical damage in hypertensive patients. | SYED IBRAHIM RIZVI NAVNEET KUMAR | 2005 | 生物化学与生物物理进展2005,32,3: | 2 |
| 5 | Titanium diboride thin films by low- temperature chemical vapor deposition from the single source precursor Ti(BH4 )3 (1,2-dimethoxyethane) 显示文摘 | Navneet Kumar | 2007 | Chem Ma- ter2007,19,: | 1 |
| 6 | Noradrenaline vs terlipressin in the treatment of type 2 hepatorenal syndrome: a randomized pilot study显示文摘 | Saubhik Ghosh Narendra S. Choudhary Arun K. Sharma Baljinder Singh Pradeep Kumar Ritesh Agarwal Navneet Sharma Ashish Bhalla Yogesh K. Chawla Virendra Singh | 2013 | Liver Int2013,,8: | 1 |
| 7 | Implementation of drone technology for farm monitoring&pesticide spraying:A review显示文摘The world receives more than 200 thousand people in a day and it is expected that the total world population will reach 9.6 billion by the year 2050.This will result in extra food demand,which can only be met from enhanced crop yield.Therefore,modernization of the agricultural sector becomes the need of the hour.There are many constraints that are responsible for the low production of crops,which can be overcome by using drone technology in the agriculture sector.This paper presents an analysis of drone technologies and their modifications with time in the agriculture sector in the last decade.The application of drones in the area of crop monitoring,and pesticide spraying for Precision Agriculture(PA)has been covered.The work done related to drone structure,multiple sensor development,innovation in spot area spraying has been presented.Moreover,the use of Artificial Intelligent(AI)and deep learning for the remote monitoring of crops has been discussed. | Abdul Hafeez Mohammed Aslam Husain S.P.Singh Anurag Chauhan Mohd.Tauseef Khan Navneet Kumar Abhishek Chauhan S.K.Soni | 2023 | Information Processing in Agriculture2023,10,2: | 1 |
| 8 | microRNAs : role in leukemia and their computational perspective显示文摘 | Ankur Omer Poonam Singh Navneet Kumar Yadav Rama Kant Singh | 2015 | WIREs RNA2015,,: | 1 |
| 9 | 显示文摘 | Navneet Kaur Subodh Kumar | 2011 | Tetrahedron2011,67,: | 1 |
| 10 | Extracellular Vesicles and Their Significance in COVID-19显示文摘Over the last few years,there is huge scientific attention towards the research related to Extracellular Vesicles(EVs),because of their unique property of inter cellular communications and effective biological significance in diagnosis and therapy[1].Extracellular Vesicles are lipid bilayer membrane bound biological entity,which contains different bioactive compounds(cargoes)such as microRNAs(miRNAs),mRNAs,proteins,and lipids.Based on their origin and size,EVs have been categorized into three different types(a)Exosomes(40 nm-150 nm)are smallest EVs,which are synthesized by endocytic pathways in the cells and secreted in extracellular space through exocytosis process,(b)Microvesicles are secreted from direct budding off plasma membranes and their size varying from 50 nm to 1000 nm and,(c)Apoptotic bodies are formed during apoptotic cell death process and respectively larger in size>1000 nm[1-3].EVs have been identified using different markers,that includes tetraspanins proteins(CD9,CD63,CD81,and CD83),endosomal sorting complexes required for transport(TSG101,Alix),heat shock proteins(Hsp60,Hsp70,Hsp90),and Rab proteins(RAB27a/b)[1]. | Sanjay Kumar Soumi Sadhu Himanshu Narayan Singh Navneet Kumar Dubey Nikhil Kumar Prashant Kumar Tiwari Rajan Malhotra Himani Sharma | 2022 | Advances in Human Physiology Research2022,4,1: | 0 |
| 11 | Responding to fire in an intensive care unit: Management and lessons learned显示文摘Healthcare institutions are vulnerable to disruptionfrom events such as earthquakes, fires, and floods, andthe damage incurred can endanger the lives of patientsin the hospital.[1] In this type of scenario hospital staffhave primary responsibility for the hospitalized patients'safety, since patients are neither fit to respond to sucha disaster, nor do they know how to respond.[2,3] Thesituation becomes more difficult and challenging if thedisaster occurs in critical care areas such as intensivecare units (ICUs) and operating rooms. | Navneet Dhaliwal Ranjitpal Singh Bhogal Ashok Kumar Anil Kumar Gupta | 2018 | World Journal of Emergency Medicine2018,9,2: | 0 |
| 12 | Uncoupled thermoelastic analysis for a thick cylinder with radiation显示文摘An attempt has been made to study the uncoupled thermoelastic response of thick cylinder of length 2h in which heat sources are generated according to the linear function of the temperature,with boundary conditions of the radiation type.This approach is based upon integral transform techniques,to find out the thermoelastic solution.The results are obtained in terms of Bessel functions in the form of infinite series. | Navneet Kumar Lamba N.W.Khobragade | 2012 | Theoretical & Applied Mechanics Letters2012,2,2: | 0 |