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| 1 | An overview on properties,thermal decomposition,and combustion behavior of ADN and ADN based solid propellants显示文摘Ammonium dinitramide [NH4 N(NO_2)2, ADN] is considered as a possible replacement for ammonium perchlorate(AP) in nearly all kind of solid rocket propulsions in the coming future. The reason to use ADN instead of AP in solid rocket propulsion is because of its harmless combustion products, along with its capacity to generate high specific impulse(Isp). ADN is fairly a new member in the solid oxidizer community and is considered under green energetic material(GEM). Application and feasible utilization of ADN as an oxidizer for composite solid propellants(CSP's) requires complete knowledge of its thermal decomposition processes along with its combustion behavior. A detailed overview on the physical and chemical properties, thermal decomposition, and combustion behavior of ADN and ADN based propellants has been discussed in this paper. Catalytic effect on thermal decomposition, combustion wave structure, and burning rate of ADN is also discussed. | Pratim Kumar Alliance | 2018 | Defence Technology(防务技术)2018，14，6： | 14 |
| 2 | Combustion performance studies of aluminum and boron based composite solid propellants in sub-atmospheric pressure regimes显示文摘The aim of present study is to investigate the burning rate,ignition delay,and flame characteristics of ammonium perchlorate(AP)-hydroxyl terminated poly-butadiene(HTPB)[AP/HTPB]based composite propellants(CSP's)in sub-atmospheric pressure regimes(13 kPae100 kPa).Several fuels and catalyzed were used to evaluate their effects on the combustion characteristics of AP based propellants in sub-atmospheric pressure regimes.In fuels,aluminum(Al)and boron(B)were selected as metallic and non-metallic fuel respectively.While in catalyst,butyl ferrocene(B.F.)and ferric oxide(F.O.)were selected as liquid and solid catalyst respectively.Apart from these,other ingredients that were used are di-octyl adipate(DOA),toluene di-isocyanate(TDI),and glycerol.The article throws some light on the burning rate and ignition delay properties for these new classes of prepared propellant samples.At subatmospheric pressures,all propellants are susceptible to irregular burning with the ejection of soot's,fumes,and unburned particles.F.O.based catalyzed propellants can sustain its combustion up to the lowest pressure. | Pratim Kumar Mayank Varshney Aniket Manash | 2019 | Propulsion and Power Research2019，8，4： | 3 |
| 3 | An unusual cause of dyspnoea complicating right upper abdominal swelling显示文摘一中年,恰好上面的腹的疼痛地介绍的非瘾君子男性并且与呼吸窘迫胀大。检查揭示了中央青紫,两足动物 pitting 与突出腹上部并且背静脉。肝被扩大,温柔,没有任何脾大或腹水,跨越了 20 厘米。另外的系统是临床上正常的。实验室调查证明有稍微捣乱的肝的 polymorphonuclear 白细胞增多工作。腹的 ultrasonography 与压缩劣等的静脉腔(IVC ) 在肝的正确脑叶显示出脓肿,中间、左的肝的静脉。动脉的血气体(ABG ) 与 orthodeoxia 记录了组织缺氧,空气对比回响心动描记法肺内分流是暗示的。hepato 肺的症候群(HPS ) 的诊断与对阿米巴的肝脓肿第二等的近正常的肝功能被做。它颠倒了肝脓肿的完全后面的成功的处理。 | Sanjay Kumar Mandal Partha Pratim Chakraborty Rana Bhattacharjee Subhasis Roy Chowdhury Shounak Majumdar | 2006 | World Journal of Gastroenterology2006，12，25： | 3 |
| 4 | Identification of parameter to assess cracking resistance of asphalt mixtures subjected to aging and moisture conditioning显示文摘This study comprehensively evaluated different parameters based on tensile strength testing to assess the cracking resistance of asphalt mixtures subjected to aging and moisture conditioning.For this purpose,two sources of aggregates were selected to produce hot and warm mix asphalt mixtures.Asphalt mixtures were subjected to short term and long term aging,three levels of moisture conditioning(freeze thaw cycles),and tested at two temperatures(15℃and 25℃).The load-displacement data was used to determine the fracture work density,fracture energy,toughness index,cracking resistance index,cracking tolerance index,and rate dependent cracking index.It was noticed that moisture conditioning increased the variability of the different parameters.The cracking tolerance index and rate dependent cracking index parameter had a much higher coefficient of variation(Co V)with a maximum value close to 50%.Indirect tensile strength,fracture energy,and fracture work density appropriately captured the effect of moisture on cracking resistance of mixtures.The cracking resistance index,cracking tolerance index,and rate dependent cracking index increased with an increase in the moisture conditioning level.The Statistical analysis showed that tensile strength,fracture work density,and fracture energy were significantly influenced by different aging and moisture conditions evaluated.Fracture energy showed better association with fatigue life of asphalt mixtures subjected to three freeze-thaw cycles compared to tensile strength.Further,the fatigue life prediction models showed that both indirect tensile strength and fracture energy significantly influence the fatigue life of asphalt mixtures subjected to aging and moisture conditioning. | Bhaskar Pratim Das Anjan Kumar Siddagangaiah | 2022 | Journal of Traffic and Transportation Engineering(English Edition)2022，9，2： | 3 |
| 5 | 沥青混合料疲劳寿命的新现象学模型研究显示文摘该文对印度公路和道路运输部所规定的3种级配沥青混合料进行了四分点疲劳试验,并评价了其疲劳寿命。试验采用应变控制模式,加载为频率10Hz的正弦加载,温度为20℃。所有混合料的空隙率都控制在(4.0±0.2)%,同时对沥青混合料进行了马歇尔残留稳定度和间接拉伸强度的测试以评价其性能。在此基础上,提出了一个评价沥青混合料疲劳寿命的新现象学模型。试验研究表明:弹性改性沥青疲劳寿命最长,并且具有最低的应变敏感性。塑性改性沥青混合料太脆导致在高应变水平下表现较差,SMA的疲劳寿命比密级配沥青混合料的疲劳寿命高近5倍。新的模型不仅与试验结果高度吻合,而且在统计上也比传统模型更加可靠。 | 冯新军 杨强 赵弘正 Nikhil Saboo Bhaskar Pratim Das Praveen Kumar | 2018 | 中外公路2018，38，3： | 2 |
| 6 | Advances in phase stabilization techniques of AN using KDN and other chemical compounds for preparing green oxidizers显示文摘Research and development of green oxidizers and green fuels as a possible replacement for ammonium perchlorate(NH4ClO4,AP) and hydrazine(N2H4) respectively has been increased considerably in the recent years.AP and hydrazine are the oxidizer and fuel entities,and used in solid and liquid rocket motors respectively.AP is highly toxic and led to adverse health effects,while hydrazine is carcinogenic in nature.AP is in use from the last several decades for rocket and space shuttle propulsion,while hydrazine is used in upper stage liquid propelled rocket motors.It’s a tough task to replace AP with the currently available green oxidizers;since their ballistic properties are weaker when compared to AP and also they can’t be successfully deployed in a solid rocket motor at present Some important available solid green oxidizers are ammonium nitrate(AN),ammonium dinitramide(ADN),hydroxyl ammonium nitrate(HAN),and hydrazinium nitroformate(HNF).However,AN is one of the cheap and readily available oxidizer,and has great potential to use in solid/liquid rocket motors.Tremendous progress has been envisaged till now,and more progress will be there in the coming future over the development of AN based green energetic materials(GEM’s).A concise overview has been presented over the development of phase stabilized ammonium nitrate(PSAN) and AN/KDN based green oxidizers in the present review paper. | Pratim Kumar | 2019 | Defence Technology(防务技术)2019，15，6： | 2 |
| 7 | Catalytic effects of Cu-Co~* on the thermal decomposition of AN and AN/KDN based green oxidizer and propellant samples显示文摘This paper presents the catalytic effects of Cu-Co~* catalyst on the decomposition of AN and AN/KDN based oxidizer and propellant samples. Ozawa-Flynn-Wall(OFW) iso-conversional method was used for the kinetic studies and to compute the activation energy(Ea) values for various decomposition steps of the prepared oxidizer and propellant samples in the temperature range of 50 e500C. TG-DTG experiments were carried out for both oxidizer and propellant samples at the heating rates of 3, 5, and 10C/min. AN/KDN based oxidizer samples were prepared by an evaporative co-crystallization method. Citric acid sol-gel method was used for the synthesis of Cu-Co~* catalyst. The propellant sample contains HTPB as the fuel binder along with other ingredients such as TDI, DOA, and Glycerol. The Cu-Co~* catalyst was used as 2% by weight to the total weight of catalyzed oxidizer and propellant samples. It was observed from the present study that, Cu-Co~* catalyst helps in reducing the Ea values for AN and AN based propellant samples. However, with the percentage increment of KDN in the AN crystals, Ea value increases.Further, it was observed that Cu-Co~* catalyst stabilizes the initial partial decomposition of KDN. | Pratim Kumar Puran Chandra Joshi Rajiv Kumar Shelly Biswas | 2018 | Defence Technology(防务技术)2018，14，3： | 2 |
| 8 | 简易转速测量系统设计显示文摘介绍了一种基于定时器的转速测量系统的设计与开发。使用直流电动机的转轴来测量其转速,定时器IC 555用于不稳定模式。使用数字存储示波器(DSO)测量的定时器输出波形的频率几乎与转轴的转速成线性比例,而这个转速又与外部输入电压水平的变化成线性关系,由此得到了定时器输出波形频率与转速之间的线性关系。该系统的主要优点是线性输入-输出,体积小,便于携带且成本低。 | Akash Kumar Anindya Debnath Antar Banik Kabirul Islam Mondal Partha Pratim Biswas Rik Bhattacharyya T K Maiti | 2020 | Journal of Measurement Science and Instrumentation2020，11，2： | 2 |
| 9 | Aplastic anemia: a common hematological abnormality among peripheral pancytopenia 显示文摘 | Biswajit I4 Pratim PP Kumar ST | 2012 | NAmJMedSci2012，4，： | 1 |
| 10 | Aplastic anemia: a common he- motological abnormality among peripheral pancytopenia 显示文摘 | Biswajit H Pratim PP Kumar ST | 2012 | N Am J Med Scie2012，9，4： | 1 |
| 11 | Aplastic anemia: a common hematological abnormality among peripheral pancytopenia 显示文摘 | Biswajit H Pratim PP Kumar ST | 2012 | NAmJMedSci2012，4，： | 1 |
| 12 | A model-based shot boundary detection technique using frame transition parameters 显示文摘 | Partha Pratim Mohanta Sanjoy Kumar Saha Bhabatosh Chan- da | 2012 | IEF E Transactions on Multi- media2012，14，1： | 1 |
| 13 | Aplastic anemia : a commonhematological abnormality among peripheral pancytopenia显示文摘 | Biswajit H Pratim PP Kumar ST | 2012 | NAm J Med Sci2012，4，9： | 1 |
| 14 | Aplastic anemia: a common hematological abnormality among peripheral pancytopenia 显示文摘 | Biswajit H Pratim PP Kumar ST | 2012 | N Am J Med Sci2012，4，9： | 1 |
| 15 | Arsenic in groundwater in six districts of West Bengal, India显示文摘 | Dipankar Das Gautam Samanta Badal Kumar Mandal Tarit Roy Chowdhury Chitta Ranjan Chanda Partha Pratim Chowdhury Gautam Kumar Basu Dipankar Chakraborti | 1996 | Environmental Geochemistry and Health1996，，1： | 1 |
| 16 | 基于光敏耦合定时器的压频转换器的实现(英文)显示文摘研制了基于定时器的压频转换器,电路主要由工作于非稳态多谐振荡器模式下的定时器LM555和两个光敏电阻构成。由于数字存储振荡器测得的定时器输出波频率与所施加的输入电压基本呈线性比例关系,所研制的转换器为类数字输出,因此具有线性输入/输出关系、体积小、易携带和高性价比等优点。此外,定时器输出波可以直接与PC机、微处理器或微控制器相连,不需要模/数转换器就能完成对输入电压信号的进一步处理。 | Akash Kumar Anindya Debnath Antar Banik Kabirul Islam Mondal Partha Pratim Biswas Rik Bhattacharyya T K Maiti | 2017 | Journal of Measurement Science and Instrumentation2017，8，1： | 1 |
| 17 | Choking or Epilepsy显示文摘Choking is a form of asphyxia caused by an obstruction within the air passage usually between the pharynx and bifurcation of the trachea.It is commonly associated with alcohol intoxication,neurological injury,or senility.Choking is almost always accidental.Suicidal and homicidal chokings are rare.Here,in the present case,the dead body of a 29‑year‑old male was brought by the local police to the mortuary of Gauhati Medical College and Hospital,Guwahati for medico‑legal autopsy,who as reported,was mysteriously found dead on his bed.After complete and thorough autopsy,the cause of death was opined to be due to asphyxia as a result of antemortem choking,following impaction of the food bolus in the laryngotracheal region.The person had a history of a single episode of seizure(epilepsy)about 1 month back. | Raktim Pratim Tamuli Debarshee Chakraborty Nayan Kumar Das Braja Gopal Das | 2016 | Journal of Forensic Science and Medicine2016，2，1： | 0 |
| 18 | Poncet's disease: An unusual presentation of tuberculosis in a diabetic lady显示文摘Authors describe a 53-year-old woman who presentedto their diabetes clinic with a three week history of multiple painful and swollen joints. She had been diagnosed with type 2 diabetes 5 years back. On examination, both knee joints and left ankle were swollen. A soft tissue swelling appeared over the medial end of the left clavicle few days later. Rheumatoid arthritis, collagen vascular diseases and other common causes of polyarthritis were ruled out by appropriate investigations. Non steroidal anti-inflammatory drugs failed to give satisfactory pain relief and the arthritis persisted. Conventional cultures of synovial fluid samples including cultures for tuberculosis were negative. Computed tomography showed a space occupying lesion involving the left sternoclavicular joint. Fine needle aspiration from the lesion was performed and acidfast bacilli were demonstrated in the smear using ZiehlNeelsen stain. The explanation of her arthritis was therefore tuberculous arthritis in left sternoclavicular joint and reactive arthritis in the rest of the joints. A diagnosis of Poncet's disease was considered in her case. We treated her with standard anti-tuberculosis drugs and the arthritis resolved within a few days. She remained symptom-free at her 2 years' follow-up. | Partha Pratim Chakraborty Sayantan Ray Chitra Selvan Rana Bhattacharjee Sanjay Kumar Mandal | 2015 | World Journal of Clinical Cases2015，3，4： | 0 |
| 19 | Geochemistry and hydrocarbon source rock potential of shales from the Palaeo-Mesoproterozoic Vindhyan Supergroup, central India显示文摘With increase in shale gas exploration, inorganic and organic geochemical investigations of shale have become extremely important. Here, we explore the six argillaceous (shale) intervals (Arangi, Koldaha, Rampur, Bijaygarh, Rewa and Sirbu shale) from Son valley sector, Vindhyan Basin with an aim to understand provenance conditions, palaeoclimate, tectonic setting and hydrocarbon generation potential. Whole rock geochemistry indicates Vindhyan sediments derived from felsic source(s) except for Sirbu shale that indicates additional influx of mafic rocks with differentiated felsic source. A comparative study of Vindhyan shale rare earth elements (REEs) points to Mahakoshals and Chhotanagpur gneissic complex (CGC) as probable sediment provenance for Vindhyan sediments. CIA analysis, after necessary corrections for K-metasomatism, suggests evolution in weathering and palaeoclimate indicating a transformation from moderate weathering conditions with warm and humid climate during lower Vindhyan deposition to intense weathering conditions with hot and humid climate during upper Vindhyan deposition. Trace (La/Y vs. Sc/Cr) and REE analysis indicates passive margin setting for Vindhyan sediments whereas a wide range spanning passive to active continental margin setting is also inferred using (Th-Sc-Zr/10) and (Th–La-Sc) ternary diagrams. However, these tectonic discriminant diagrams lack in explaining rift- or sag-related origin of any intracratonic basin such as the Vindhyan Basin. The total organic carbon (TOC) content in Vindhyan shales ranges from 0.29% to 8.44%. The thermally liberated hydrocarbon (S1) values range from 0.01 to 0.18 mg HC/g rock (milligram hydrocarbon per gram of rock sample), whereas hydrocarbon from cracking of the kerogen (S2) shows values ranging from 0.04 to 0.47 mg HC/g rock. Based on modified Van Krevelen correlation (HI vs. Tmax) diagram, organic matter from Arangi and Bijaygarh shales is characterized as thermally mature, Type III kerogen of gas prone character indicating good to very good gas generation potential. | Arvind Kumar Singh Partha Pratim Chakraborty | 2023 | Energy Geoscience2023，4，3： | 0 |
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