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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 | Effect of arc-current and spray distance on elastic modulus and fracture toughness of plasma-sprayed chromium oxide coatings显示文摘In this experimental study, chromium oxide powder was sprayed on a low-carbon steel substrate using the atmospheric plasma spray process. The current and standoff distances(SODs) were varied to study their effect on the fracture toughness of the coatings. Theoretically, as the arc current increases, the melting of the ceramic oxide should increase and this in turn should lead to the formation of a dense coating. However,it was observed that if the arc power is too high and because the particle size of the powder is small(approximately 30 μm), the particles tend to fly away from the plasma core. Similarly, an appropriate SOD should provide the particles with more melting time, thus resulting in a dense coating. On the other hand, a larger SOD leads to the solidification of the molten particles before the droplets can reach the substrate. All these effects may lead to substantial variation in the fracture toughness of the coating. The present paper attempts to correlate the plasma spraying parameters and microstructure of the coating with the fracture toughness and other primary coating properties. | Simanchal KAR Partha Pratim BANDYOPADHYAY Soumitra PAUL | 2018 | Friction2018，6，4： | 3 |
| 6 | Crystal structure mediates mode of cell death in TiO2 nanotoxicity显示文摘 | Laura K. Braydich-Stolle Nicole M. Schaeublin Richard C. Murdock Jingkun Jiang Pratim Biswas John J. Schlager Saber M. Hussain | 2009 | Journal of Nanoparticle Research2009，，6： | 2 |
| 7 | 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 |
| 8 | 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 |
| 9 | Soil and onsite nutrient conservation potential of aromatic grasses at field scale under a shifting cultivated,degraded catchment in Eastern Ghats,India显示文摘Land degradation due to soil erosion is a global problem, especially on cultivated hill slopes. Economically important aromatic grasses can protect degraded hill slopes more effectively than field crops, but little information is available on their performance. This study quantifies runoff, sediment yield,enrichment ratios of soil and nutrients, and sediment-associated organic carbon and nutrients losses under three aromatic grass species: citronella(Cymbopogon nardus), lemon(Cymbopogon flexuosus), and palmarosa(Cymbopogon martini), compared with a traditional field crop, finger millet(Eleusine coracana)grown at three land slopes(4%, 8%, and 12%). It was observed that the degree of slope and type of grass both significantly influenced runoff generation. Runoff and sediment yield(SY) were significantly higher at 12% slope than at 8% and 4% slopes. Relation between rainfall and runoff were significant for all the grass species(p < 0.05). Palmarosa, lemon, and citronella grass reduced the SY by 10, 54, and 60%,respectively, over finger millet. SY was also significantly related to rainfall for all the treatments(p <0.05). The threshold runoff values to produce SY were higher for aromatic grasses compared to finger millet. Enrichment of clay, silt, sand, soil organic carbon(SOC), available nitrogen(N), phosphorus(P) and potassium(K) in the sediment were not significantly different between slopes but differed significantly between aromatic grasses and finger millet. Sediment associated nutrient load varied inversely with SY mainly because of the nutrient dissolution effect of high runoff volume. Annual loss of SOC and nutrients varied from 84.7-156.8 kg ha^(-1) y^(-1) for SOC, 4.38-9.18 kg ha^(-1) y^(-1) for available N, 0.35-0.75 kg ha^(-1) y^(-1) for available P, and 2.22-5.22 kg ha^(-1) y^(-1) for available K, with the lowest values for citronella and highest for finger millet. The study found that the aromatic grasses have greater environmental conservation values than finger millet on steep degraded land. | Partha Pratim Adhikary Hunsur Chikkanarasimhaiah Hombegowda Dhananjay Barman Madegowda Madhu | 2018 | International Journal of Sediment Research2018，33，3： | 2 |
| 10 | Viral Genotypes and Associated Risk Factors of Hepatocellular Carcinoma in India显示文摘Objective This study aims to investigate the etiological relationship among hepatitis B virus(HBV),hepatitis C virus(HCV),and alcohol as risk factors in a cohort of hepatocellular carcinoma(HCC) patients from India.The clinical and biochemical profiles and tumor characteristics in the HCC cases were also evaluated. Methods A total of 357 consecutive cases of HCC fulfilling the diagnostic criteria from the Barcelona-2000 EASL conference were included in the study.The blood samples were evaluated for serological evidence of HBV and HCV infection,viral load,and genotypes using serological tests,reverse transcription-polymerase chain reaction,and restriction fragment length polymorphism. Results The male/female ratio for the HCC cases was 5.87:1.Majority of the HCC patients(33.9% ) were 50 to 59 years of age,with a mean age of 4±13.23 years.More than half the cases(60.8% ) had underlying cirrhosis at presentation.Among the HCC patients,68.9% were HBV related,21.3% were HCV related,18.8% were alcoholic,and 18.2% were of cryptogenic origin.The presence of any marker positive for HBV increased the risk for developing HCC by almost 27 times[OR:27.33;(12.87-60.0)].An increased risk of 10.6 times was observed for HCC development for cases positive for any HCV marker[OR:10.55;(3.13-42.73)].Heavy alcohol consumption along with HCV RNA positivity in cirrhotic patients was found to be a risk for developing HCC by 3 folds[OR:3.17;(0.37-70.71)]. Conclusions Patients of chronic HBV infection followed by chronic HCV infection were at higher risk of developing HCC in India. Chronic alcohol consumption was found to be a risk factor in cirrhotic cases only when it was associated with HCV RNA positivity. Most of the patients had a large tumor size(>5 cm) with multiple liver nodules,indicating an advanced stage of the disease thus making curative therapies difficult. | Manash Pratim Sarma Mohammad Asim Subhash Medhi Thayumanavan Bharathi Richa Diwan Premashis Kar | 2012 | Clinical oncology and cancer resexreh2012，9，3： | 2 |
| 11 | Tandem hidden Markov models using deep belief networks for offline handwriting recognition显示文摘在文档分析和模式识别领域,自由书写的脱机手写识别是一个非常具有挑战性的研究课题。近年来,为了充分探索隐藏在文档图像中的监督信息,许多研究工作试图将多层感知机以一种混合或串联的形式嵌入隐马尔科夫模型当中。然而,因为多层感知机学习能力的不足,学习到的特征对于后续的识别任务不一定是最优的。在本文中,我们针对自由书写的脱机手写识别提出一种基于深度结构的串联方法。在提出的模型中,深度置信网络被用于学习序列数据的紧致表示,隐马尔科夫模型被用于(子-)词的识别。我们在两个公开的数据集上验证了所提出的模型,这两个数据集是分别基于拉丁和阿拉伯语的RIMES和IFN/ENIT;我们还在Devanagari数据集上验证了所提出的模型,这个数据集是基于印度语的。大量的实验展示了所提出模型的优势,特别是相对于多层感知机-隐马尔科夫模型的串联方法。 | Partha Pratim ROY Guoqiang ZHONG Mohamed CHERIET | 2017 | Frontiers of Information Technology & Electronic Engineering2017，18，7： | 2 |
| 12 | 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 |
| 13 | 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 |
| 14 | In situ immobilization of lead species in combustion environments by injection of gas phase silica sorbent precursors显示文摘 | Pratim B Michael R Z | 1997 | Environmental Science & Technology1997，31，9： | 1 |
| 15 | Chemistry of mercury species and their control in coal combustion显示文摘 | Pratim B | 1996 | Industrial Engineering and Chemistry Research1996，，35： | 1 |
| 16 | submicrometer particle formation and control in a bench-scale pulverized coal combustor显示文摘 | Ye Zhuang Pratim B | 2001 | Energy & Fuels2001，，15： | 1 |
| 17 | Study of the mobility, surface area, and sintering behavior of agglomerates in the transition regime by tandem differential mobility analysis显示文摘 | Kuk Cho Christopher J. Hogan Pratim Biswas | 2007 | Journal of Nanoparticle Research2007，，6： | 1 |
| 18 | Equilibrium analysis to determine the speciation of metals in an incinerator 显示文摘 | Wu Chang Y Biswas Pratim | 1993 | Combustion and Flame1993，93，12： | 1 |
| 19 | A model for chlorine concentration decay in pipes显示文摘 | Pratim Biswas | 1993 | Wat Res1993，27，12： | 1 |
| 20 | Globally distributed product development using a new project management framework 显示文摘 | PRATIM G P CHANDY V J | 2004 | International Journal of Project Management2004，22，8： | 1 |
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