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| 1 | 搅拌摩擦对接焊6061铝合金的高周疲劳行为(英文)显示文摘对6061铝合金进行搅拌摩擦对接焊,其焊接工艺参数为:旋转速度600、800、1000、1200 r/min,前进速度80、100 mm/min,探针插入深度1.85 mm。基于搅拌摩擦焊参数计算得到的能量输入结果表明,在输入能量为196~405 kJ的情况下,接头在297~354 kJ的输入能量范围内有最大的抗拉强度。在不同的应力比(R=0.5,0.3,0.1,-0.3,-0.5)下,将高强度、低强度2种焊接头进行疲劳测试。结果表明,对于这2种焊接头,显微组织特征明显影响其疲劳性能,比如搅拌区、热力影响区(TMAZ)和热影响区。从接头的显微组织、裂纹扩展路径和断裂表面观察等方面对其疲劳强度进行讨论。 | Hrishikesh DAS Debayan CHAKRABORTY Tapan KUMAR PAL | 2014 | Transactions of Nonferrous Metals Society of China2014，24，3： | 7 |
| 2 | Role of Microstructural Constituents on Surface Crack Formation During Hot Rolling of Standard and Low Nickel Austenitic Stainless Steels显示文摘The effect of alloy segregation and delta (δ) ferrite contents on surface cracking of three standard (i.e. AISI 304L, AISI 310S and AISI 321) and two low nickel (i.e. LNi-1 and LNi-0.3) austenitic stainless steels (ASS) during hot rolling was investigated using optical microscopy (OM), automatic image analyzer, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and electron probe micro analyzer (EPMA). It was observed that the amount of δ-ferrite varied among different grades and also distributed heterogeneously across the width of the steel plates. In general, low nickel ASS showed higher amount of δ-ferrite compared to the standard ASS grades. The tendency to surface cracking during hot rolling gradually increased with increasing δ-ferrite content. Interestingly, carbon and nitrogen exerted maximum effect on δ-ferrite formation. The higher carbon and nitrogen content in the steel decreased δ-ferrite content. In addition, the segregation of Cu and Mn plays significant role in low nickel ASS and Ni-Cr in case of standard ASS has profound effect on surface cracking of the steel plates. A possible cause of surface crack formation/origination in steel plates during hot rolling was discussed. | Manidipto Mukherjee Tapan Kumar Pal | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，2： | 4 |
| 3 | Isolation and in vivo hep-atoprotective activity of Melothria heterophylla(Lour.) Cogn.against chemically induced liver injuries in rats显示文摘Objective:To investigate hepatoprotective activity of ethanol extract of Melothria heterophyila Lour Cogn.(EEMH) against CCl4-induced hepatic damage in rats.Methods:β-sitosterol was isolated by column chromatography and characterized spectroscopically.Two different doses(200 and 400 mg/kg bw) of EEMH were administered orally in alternate days.The hepatoprotective activity was studied in liver by measuring biochemical parameters such as serum aspartate amino transferase(AST),alanine amino transferase(ALT),alkaline phosphatase(ALP),total protein and total bilirubin.Lipid peroxidation product and different antioxidant enzyme activities were assessed in liver homogenate.Results:EEMH reduced all biochemical parameters and lipid peroxidation,as well as it increased the antioxidant enzyme activities in comparison with silymarin.The protective effect of the extract on CCl4 induced damage was confirmed by histopathological examination of the liver.Conclusions:This result strongly supports the protective effect of EEMH against acute liver injury,and may be attributed to its antioxidative activity. | Arijit Mondal Tapan Kumar Maity Dilipkumar Pal Santanu Sannigrahi Jagadish Singh | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，8： | 2 |
| 4 | On comparing interval numbers显示文摘 | Atanu Sengupta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，，： | 1 |
| 5 | Development of a new coated electrode with low nickel content for welding ductile iron and its response to austempering显示文摘Coated Electrodes with small amounts of nickel were developed for welding ductile iron(DI) and conversion of the same into austempered ductile iron(ADI) after austempering. Among six electrodes, Trials 3 and 4 were selected for establishing crack-free weld deposits via preheating and post-weld heat treatment. Austenitization was performed at 900°C for 2 h and austempering at 300 or 350°C for three different holding times to observe the results of austempering with respect to the microstructure, hardness, and austempering kinetics of the samples. The microstructures of the weld deposits showed needle-like bainitic ferrite with small amounts of retained austenite when treated at 300°C and feathery bainitic ferrite with large amounts of retainedaustenite when treated at 350°C. The electrode labeled with Trial 3 revealed greater austenite contents than that labeled with Trial 4 when treated with a 2 h holding time regardless of the austempering temperature applied. The transformation rate of the bainitic ferrite of Trial 3 was relatively higher than that of Trial 4 and showed a lower rate constant, leading to a higher diffusion rate of carbon in austenite. | Tapan Sarkar Ajit Kumar Pramanick Tapan Kumar Pal Akshay Kumar Pramanick | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，9： | 1 |
| 6 | On comparing interval numbers 显示文摘 | Atanu Senguta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，127，1： | 1 |
| 7 | On comparing interval numbers显示文摘 | Atanu Sengupta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，127，： | 1 |
| 8 | Effect of boundary precipitation andδ-ferrite formation on surface defect of low nickel austenitic stainless steel显示文摘 | Shilajit Das Manidipto Mukherjee Tapan Kumar Pal | 2015 | Engineering Failure Analysis2015，54，： | 1 |
| 9 | On comparing interval numbers 显示文摘 | Atanu Sengupta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，，127： | 1 |
| 10 | On comparing interval numbers显示文摘 | Atanu Sengupta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，，1： | 1 |
| 11 | On comparing interval numbers 显示文摘 | Atanu Sengupta Tapan Kumar Pal | 2000 | European Journal of Operational Research2000，127，： | 1 |
| 12 | Influence of energy induced from processing parameters on the mechanical properties of friction stir welded lap joint of aluminum to coated steel sheet显示文摘 | Hrishikesh Das Sushovan Basak Goutam Das Tapan Kumar Pal | 2013 | The International Journal of Advanced Manufacturing Technology2013，，9： | 1 |
| 13 | Development and validation of a high throughput LC–MS/MS method for simultaneous quantitation of pioglitazone and telmisartan in rat plasma and its application to a pharmacokinetic study显示文摘Management of cardiovascular risk factors in diabetes demands special attention due to their co-existence.Pioglitazone(PIO) and telmisartan(TLM) combination can be beneficial in effective control of cardiovascular complication in diabetes. In this research, we developed and validated a high throughput LC–MS/MS method for simultaneous quantitation of PIO and TLM in rat plasma. This developed method is more sensitive and can quantitate the analytes in relatively shorter period of time compared to the previously reported methods for their individual quantification. Moreover, till date, there is no bioanalytical method available to simultaneously quantitate PIO and TLM in a single run. The method was validated according to the USFDA guidelines for bioanalytical method validation. A linear response of the analytes was observed over the range of 0.005–10 μg/m L with satisfactory precision and accuracy. Accuracy at four quality control levels was within 94.27%–106.10%.The intra-and inter-day precision ranged from 2.32% to 10.14% and 5.02% to 8.12%, respectively. The method was reproducible and sensitive enough to quantitate PIO and TLM in rat plasma samples of a preclinical pharmacokinetic study. Due to the potential of PIO-TLM combination to be therapeutically explored, this method is expected to have significant usefulness in future. | Pinaki Sengupta Bappaditya Chatterjee Uttam Kumar Mandal Bapi Gorain Tapan Kumar Pal | 2017 | Journal of Pharmaceutical Analysis2017，7，6： | 0 |
| 14 | Organic farming in India: a vision towards a healthy nation显示文摘Food quality and safety are the two important factors that have gained ever-increasing attention in general consumers.Conventionally grown foods have immense adverse health effects due to the presence of higher pesticide residue,more nitrate,heavy metals,hormones,antibiotic residue,and also genetically modified organisms.Moreover,conventionally grown foods are less nutritious and contain lesser amounts of protective antioxidants.In the quest for safer food,the demand for organically grown foods has increased during the last decades due to their probable health benefits and food safety concerns.Organic food production is defined as cultivation without the application of chemical fertilizers and synthetic pesticides or genetically modified organisms,growth hormones,and antibiotics.The popularity of organically grown foods is increasing day by day owing to their nutritional and health benefits.Organic farming also protects the environment and has a greater socio-economic impact on a nation.India is a country that is bestowed with indigenous skills and potentiality for growth in organic agriculture.Although India was far behind in the adoption of organic farming due to several reasons,presently it has achieved rapid growth in organic agriculture and now becomes one of the largest organic producers in the world.Therefore,organic farming has a great impact on the health of a nation like India by ensuring sustainable development. | Suryatapa Das Annalakshmi Chatterjee Tapan Kumar Pal | 2020 | Food Quality and Safety2020，4，2： | 0 |
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