|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Pentoxifylline versus prednisolone for severe alcoholic hepatitis:A randomized controlled trial显示文摘AIM:To compare the efficacy of pentoxifylline and prednisolone in the treatment of severe alcoholic hepatitis,and to evaluate the role of different liver function scores in predicting prognosis.METHODS:Sixty-eight patients with severe alcoholic hepatitis(Maddrey score≥32)received pentoxifylline(n=34,groupⅠ)or prednisolone(n=34,groupⅡ) for 28 d in a randomized double-blind controlled study,and subsequently in an open study(with a tapering dose of prednisolone)for a total of 3 mo,and were followed up over a period of 12 mo.RESULTS:Twelve patients in groupⅡdied at the end of 3 mo in contrast to five patients in groupⅠ.The probability of dying at the end of 3 mo was higher in groupⅡas compared to groupⅠ(35.29%vs 14.71%,P=0.04;log rank test).Six patients in groupⅡ developed hepatorenal syndrome as compared to none in groupⅠ.Pentoxifylline was associated with a significantly lower model for end-stage liver disease(MELD)score at the end of 28 d of therapy(15.53±3.63 vs 17.78±4.56,P=0.04).Higher baseline Maddrey score was associated with increased mortality.CONCLUSION:Reduced mortality,improved risk-benefit profile and renoprotective effects of pentoxifylline compared with prednisolone suggest that pentoxifylline is superior to prednisolone for treatment of severe alcoholic hepatitis. | Binay Krishna De Subhabrata Gangopadhyay Deep Dutta Sumanta Das Baksi Adyapad Pani Pramit Ghosh | 2009 | World Journal of Gastroenterology2009，15，13： | 26 |
| 2 | Head mass in chronic pancreatitis: Inflammatory or malignant显示文摘Chronic pancreatitis increases the risk of developing pancreatic cancer. This often presents as a mass lesion in the head of pancreas. Mass lesion in the head of pancreas can also occur secondary to an inflammatory lesion. Recognising this is crucial to avoid unnecessary surgery. This is sometimes difficult as there is an overlap in clinical presentation and conventional computed tomography(CT) abdomen findings in inflammatory andmalignant mass. Advances in imaging technologies like endoscopic ultrasound in conjunction with techniques like fine needle aspiration, contrast enhancement and elastography as well as multidetector row CT, magnetic resonance imaging and positron emission tomography scanning have been shown to help in distinguishing inflammatory and malignant mass. Research is ongoing to develop molecular techniques to help characterise focal pancreatic mass lesions. This paper reviews the current status of imaging and molecular techniques in differentiating a benign mass lesion in chronic pancreatitis and from malignancy. | Amit K Dutta Ashok Chacko | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，3： | 16 |
| 3 | Hepatoprotective and immunomodulatory properties of aqueous extract of Curcuma longa in carbon tetra chloride intoxicated Swiss albino mice显示文摘Objective:To evaluate the hepatoprotective and immunotherapeutic effects of aqueous extract of turmeric rhizome in CCl_4 intoxicated Swiss albino mice.Methods:first group of mice(n=5) received CCl_4 treatment at a dose of 0.5 mL/kg bw(i.p.) for 7 days.Second group was fed orally the aqueous extract of turmeric at a dose of 50 mg/kg bw for IS days.The third group was given both the turmeric extract(for 15 days,orally) and CCl_4(for last 7 days,i.p.).The fourth group was kept as a control.To study the liver function,the transaminase enzymes(SGOT and SGPT) and bilirubin level were measured in the serum of respective groups.For assaying the immunotherapeutic action of Curcuma longa(C.longa),non specific host response parameters like morphological alteration,phagocytosis,nitric oxide release,myeloperoxidase release and intracellular killing capacity of peritoneal macrophages were studied from the respective groups.Results:The result of present study suggested that CCl_4 administration increased the level of SCOT and SGPT and bilirubin level in serum.However,the aqueous extract of turmeric reduced the level of SGOT, SCFT and bilirubin in CCl_4 intoxicated mice.Apart from damaging the liver system,CCl_4 also reduced non specific host response parameters like morphological alteration,phagocytosis, nitric oxide release,myeloperoxidase release and intracellular killing capacity of peritoneal macrophages.Administration of aqueous extract of C.longa offered significant protection from these damaging actions of CCl_4 on the non specific host response in the peritoneal macrophages of CCl_4 intoxicated mice.Conclusions:In conclusion,the present study suggests that C.longa has immunotherapeutic properties along with its ability to ameliorate hepatotoxicity. | Mahuya Sengupta Gauri Dutta Sharma Biswajit Chakraborty | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，3： | 11 |
| 4 | Environmental assessment and nano-mineralogical characterization of coal,overburden and sediment from Indian coal mining acid drainage显示文摘The deterioration of environmental conditions is the major contributory factor to poor health and quality of life that hinders sustainable development in any region.Coal mining is one of the major industries that contribute to the economy of a country but it also impacts the environment.The chemical parameters of the coal,overburden,soil and sediments along with the coal mine drainage(CMD)were investigated in order to understand the overall environmental impact from high sulphur coal mining at northeastern coalfield(India).It was found that the total sulphur content of the coal is noticeably high compared to the overburden(OB)and soil.The volatile matter of the coal is sufficiently high against the high ash content of the soil and overburden.The water samples have a High Electrical Conductivity(EC)and high Total Dissolve Solid(TDS).Lower values of pH,indicate the dissolution of minerals present in the coal as well as other minerals in the mine rejects/overburden.The chemical and nano-mineralogical composition of coal,soil and overburden samples was studied using a High Resolution-Transmission Electron Microscopy(HR-TEM),Energy Dispersive Spectroscopy(EDS),Selected-Area Diffraction(SAED),Field Emission-Scanning Electron Microscopy(FE-SEM)/EDS,X-ray diffraction(XRD),Fourier Transform Infrared Spectroscopy(FTIR),Raman and Ion-Chromatographic analysis,and Mossbauer spectroscopy.From different geochemical analysis it has been found that the mine water sample from Ledo colliery has the lowest pH value of 3.30,Tirap colliery samples have the highest electrical conductivity value of5.40 ms cm^(-1)Both Ledo and Tirap coals have total sulphur contents within the range 3-3.50%.The coal mine water from Tirap colliery(TW-15 B)has high values of Mg^(2+)(450 ppm),and Br^-(227.17 ppm).XRD analysis revealed the presence of minerals including quartz and hematite in the coals.Mineral analysis of coal mine overburden(OB)indicates the presence both of pyrite and marcasite which was also confirmed in XRD and Mossbauer spectral analysis.The presented data of the minerals and ultra/nano-particles present shows their ability to control the mobility of hazardous elements,suggesting possible use in environmental management technology,including restoration of the delicate Indian coal mine areas. | Madhulika Dutta Jyotilima Saikia Silvio R.Taffarel Frans B.Waanders Diego de Medeiros Cesar M.N.L.Cutruneo Luis F.O.Silva Binoy K.Saikia | 2017 | Geoscience Frontiers2017，8，6： | 8 |
| 5 | Detection of hepatitis B virus infection: A systematic review显示文摘AIM: To review published methods for detection of hepatitis B virus(HBV) infection.METHODS: A thorough search on Medline database was conducted to find original articles describing different methods or techniques of detection of HBV, which are published in English in last 10 years. Articles outlining methods of detection of mutants or drug resistance were excluded. Full texts and abstracts(if full text not available) were reviewed thoroughly. Manual search of references of retrieved articles were also done. We extracted data on different samples and techniques of detection of HBV, their sensitivity(Sn), specificity(Sp) and applicability.RESULTS: A total of 72 studies were reviewed. HBV was detected from dried blood/plasma spots, hepatocytes, ovarian tissue, cerumen, saliva, parotid tissue, renal tissue, oocytes and embryos, cholangiocarcinoma tissue, etc. Sensitivity of dried blood spot for detecting HBV was > 90% in all the studies. In case of seronegative patients, HBV DNA or serological markers have been detected from hepatocytes or renal tissue in many instances. Enzyme linked immunosorbent assay and Chemiluminescent immunoassay(CLIA) are most commonly used serological tests for detection. CLIA systems are also used for quantitation. Molecular techniques are used qualitatively as well as for quantitative detection. Among the molecular techniques version 2.0 of the Cobas Ampliprep/Cobas Taq Man assay and Abbott's real time polymerase chain reaction kit were found to be most sensitive with a lower detection limit of only 6.25 IU/m L and 1.48 IU/m L respectively. CONCLUSION: Serological and molecular assays are predominant and reliable methods for HBV detection. Automated systems are highly sensitive and quantify HBV DNA and serological markers for monitoring. | Mallika Ghosh Srijita Nandi Shrinwanti Dutta Malay Kumar Saha | 2015 | World Journal of Hepatology2015，7，23： | 8 |
| 6 | 东莨菪亭(7-羟基-6-甲氧基香豆素)对7 ,12-二甲基苯并蒽诱导的皮肤乳头状瘤小鼠相关关键信号蛋白的影响(英文)显示文摘目的:东莨菪亭(7-羟基-6-甲氧基香豆素)是从常绿钩吻中提取的有效成分,前期体外研究证实了其抗肿瘤潜能,本研究评价其在小鼠体内的抗肿瘤作用。方法:30只健康小鼠随机分为正常对照组、模型组、溶剂对照组和低、高剂量东莨菪亭组,每组6只。正常对照组小鼠不接受任何干预,其余小鼠背部涂抹100μg 7 ,12-二甲基苯并蒽(7 ,12-di methylbenz[a]anthra-cene ,DMBA)(每周一次)和1 %巴豆油(每周2次)诱导皮肤乳头状瘤,共24周。溶剂组小鼠在造模基础上每天予2 %酒精口服,低剂量(50 mg/kg)和高剂量(100 mg/kg)东莨菪亭组小鼠每天予东莨菪亭治疗。治疗24周后,检测碱性磷酸酶、超氧化物歧化酶、过氧化氢酶、谷胱甘肽过氧化物酶和谷胱甘肽S-转移酶活性;信号蛋白及其受体,包括芳香烃受体(Aryl hydrocarbon receptor , AhR)、p53、细胞色素P450亚酶1A1(cytochrome P450 1A1 , CYP1A1)、增殖细胞核抗原(proliferating cell nuclear antigen,PCNA)、信号转导和转录激活因子3(signal transducer and activator of transcription-3 ,Stat-3)、存活素、金属基质蛋白酶2、cyclin D1、c-myc、金属蛋白酶组织抑制因子2和半胱氨酸蛋白酶3(caspase-3) ,采用逆转录聚合酶链反应、蛋白印迹法或免疫沉淀法检测。结果:致癌物DMBA和巴豆油可以诱导毒性反应,生化指标中相关酶活性升高,AhR、CYP1A1、PCNA、Stat-3、存活素、MMP-2、cyclin D1和c-myc表达上调,p53、caspase-3和TI MP-2表达下调。荷瘤小鼠采用东莨菪亭治疗后,生化指标中相关酶的活性下降,蛋白表达和毒性生物标志物恢复正常。结论:东莨菪亭可能通过下调AhR表达来下调一些重要信号蛋白的表达,其作用机制可能是通过竞争性抑制存活素的表达。分裂原活化蛋白激酶可能也起到关键作用。东莨菪亭或许可作为化疗的替代药物用于治疗肿瘤。 | Soumya Sundar Bhattacharyya Saili Paul Suman Dutta Naoual Boujedaini Anisur Rahman Khuda-Bukhsh | 2010 | 中西医结合学报2010，8，7： | 7 |
| 7 | Implications of Climate Change on Streamflow of a Snow-Fed River System of the Northwest Himalaya显示文摘Air temperature and snow cover variability are sensitive indicators of climate change. This study was undertaken to forecast and quantify the potential streamflow response to climate change in the Jhelum River basin. The implications of air temperature trends (+0.11°C/decade) reported for the entire north-west Himalaya for past century and the regional warming (+0.7°C/decade) trends of three observatories analyzed between last two decades were used for future projection of snow cover depletion and stream flow. The streamflow was simulated and validated for the year 2007-2008 using snowmelt runoff model (SRM) based on in-situ temperature and precipitation with remotely sensed snow cover area. The simulation was repeated using higher values of temperature and modified snow cover depletion curves according to the assumed future climate. Early snow cover depletion was observed in the basin in response to warmer climate. The results show that with the increase in air temperature, streamflow pattern of Jhelum will be severely affected. Significant redistribution of streamflow was observed in both the scenarios. Higher discharge was observed during spring-summer months due to early snowmelt contribution with water deficit during monsoon months. Discharge increased by 5% 40% during the months of March to May in 2030 and 2050. The magnitude of impact of air temperature is higher in the scenario-2 based on regional warming. The inferences pertaining to change in future streamflow pattern can facilitate long term decisions and planning concerning hydro-power potential, waterresource management and flood hazard mapping in the region. | Vaibhav SHARMA Varunendra Dutta MISHRA Pawan Kumar JOSHI | 2013 | Journal of Mountain Science2013，10，4： | 7 |
| 8 | Characterization of chickpea germplasm conserved in the Indian National Genebank and development of a core set using qualitative and quantitative trait data显示文摘Chickpea is the third most important pulse crop as a source of dietary protein. Ever-increasing demand in Asian countries calls for breeding superior desi-type varieties, in turn necessitating the availability of characterized germplasm to breeders. The Indian National Genebank,located at the National Bureau of Plant Genetic Resources, New Delhi, conserves 14,651 accessions of chickpea. The entire set was characterized in a single large-scale experiment.High variation was observed for eight quantitative and 12 qualitative agro-morphological traits. Allelic richness procedure was employed to assemble a core set comprising 1103 accessions, 70.0% of which were of Indian origin. Comparable values of total variation explained by the first three principal components in the entire collection(51.1%) and the core(52.4%)together with conservation of nine pairwise r values among quantitative traits in the core collection and a coincidence rate around 99.7% indicated that the chickpea core was indeed an excellent representation of the entire chickpea collection in the National Genebank. The chickpea core exhibited greater diversity than the entire collection in agro-morphological traits, as assessed by higher variance and Shannon–Weaver diversity indices, indicating that the chickpea core maximized the phenotypic diversity available in the Indian chickpea germplasm. The chickpea core, comprising mainly indigenous desi genotypes, is expected to be an excellent resource for chickpea breeders. Information on the chickpea core can be accessed at http://gffzz905398e276204fc7hw9pbn6xpo0wc6ufx.ffgz.tsg.suse.edu.cn/pgrportal. | Sunil Archak Rishi K.Tyagi P.N.Harer L.B.Mahase Neeta Singh Om P.Dahiya M.Abdul Nizar Mohar Singh Vrushali Tilekar Vikas Kumar Manoranjan Dutta Narendra P.Singh Kailash C.Bansal | 2016 | The Crop Journal2016，4，5： | 7 |
| 9 | Helicobacter pylori eradication in patients with chronic immune thrombocytopenic purpura显示文摘AIM:To assess the effect of Helicobacter pylori(H.pylori)eradication on platelet counts in patients with chronic immune thrombocytopenic purpura(cITP).METHODS:A total of 36 cITP patients were included in the study.The diagnosis of H.pylori was done by rapid urease test and Giemsa staining of the gastric biopsy specimen.All H.pylori positive patients received standard triple therapy for 14 d and were subjected for repeat endoscopy at 6 wk.Patients who continued to be positive for H.pylori on second endoscopyreceived second line salvage therapy.All the patients were assessed for platelet response at 6 wk,3rd and 6th months.RESULTS:Of the 36 patients,17 were positive for H.pylori infection and eradication was achieved in16 patients.The mean baseline platelet count in the eradicated patients was 88615.38±30117.93/mm3and platelet count after eradication at 6 wk,3 mo and6 mo was 143230.77±52437.51/mm3(P=0.003),152562.50±52892.3/mm3(P=0.0001),150187.50±41796.68/mm3(P=0.0001)respectively and in the negative patients,the mean baseline count was71000.00±33216.46/mm3 and at 6 wk,3rd and 6th month follow up was 137631.58±74364.13/mm3(P=0.001),125578.95±71472.1/mm3(P=0.005),77210.53±56892.28/mm3(P=0.684)respectively.CONCLUSION:Eradication of H.pylori leads to increase in platelet counts in patients with cITP and can be recommended as a complementary treatment with conventional therapy. | Ravinder Naik Noonavath Chandrasekharan Padma Lakshmi Tarun Kumar Dutta Vikram Kate | 2014 | World Journal of Gastroenterology2014，20，22： | 6 |
| 10 | Gadolinium doped tin dioxide nanoparticles: an efficient visible light active photocatalyst显示文摘Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide(SnO_2) nanoparticles was reported.Gadolinium doped tin dioxide(SnO_2:Gd) nanoparticles were found to absorb higher visible light compared to lanthanum,neodymium and cerium doped materials that were studied in detail.Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO_2:Gd nanoparticles was studied with high performance liquid chromatography(HPLC),capillary electrophoresis(CE),total organic carbon(TOC) measurements and the determination of chemical oxygen demand(COD).Clear correlations between the results obtained from these multiple measurements were found,and a kinetic pathway for the degradation process was proposed.Within 150 min of solar irradiation,the TOC of a 10 ppm phenol solution in water was reduced by 95%-99%,thus demonstrating that SnO_2:Gd nanoparticles are efficient visible light photocatalysts. | Abdullah M Al-Hamdi Mika Sillanp?? Joydeep Dutta | 2015 | Journal of Rare Earths2015，33，12： | 5 |
| 11 | Influence of environmental factors on the onset and courseof inflammatory bowel disease显示文摘Numerous environmental factors have been linked with inflammatory bowel disease. These include smoking, diet, hygiene, drugs, geographical and psychosocial factors. These factors may either increase the risk of or protect against developing this condition and can also affect the course of illness in a positive or negative manner. A number of studies have examined the influence of environmental factors on inflammatory bowel diseases as a whole as well as on ulcerative colitis and Crohn's disease separately. As there are differences in the pathogenesis of ulcerative colitis and Crohn's disease, the effect of environmental factors on their onset and course is not always similar. Some factors have shown a consistent association, while reports on others have been conflicting. In this article we discuss the current evidence on the roles of these factors on inflammatory bowel disease, both as causative/protective agents and as modifiers of disease course. | Amit Kumar Dutta Ashok Chacko | 2016 | World Journal of Gastroenterology2016，22，3： | 5 |
| 12 | Geochemical cycling during subduction initiation:Evidence from serpentinized mantle wedge peridotite in the south Andaman ophiolite suite显示文摘The ophiolite suite from south Andaman Islands forms part of the Tethyan Ophiolite Belt and preserves the remnants of an ideal ophiolite sequence comprising a basal serpentinized and tectonised mantle peridotite followed by ultramafic and mafic cumulate units, basaltic dykes and spilitic pillow basalts interlayered with arkosic wacke. Here, we present new major, trace, rare earth(REE) and platinum group(PGE) element data for serpentinized and metasomatized peridotites(dunites) exposed in south Andaman representing the tectonized mantle section of the ophiolite suite. Geochemical features of the studied rocks, marked by Al_2 O_3/TiO_2 > 23, LILE-LREE enrichment, HFSE depletion, and U-shaped chondrite-normalized REE patterns with(La/Sm)N > 1 and(Gd/Yb)N <1, suggest contributions from boninitic mantle melts. These observations substantiate a subduction initiation process ensued by rapid slab roll-back with extension and seafloor spreading in an intraoceanic fore-arc regime. The boninitic composition of the serpentinized peridotites corroborate fluid and melt interaction with mantle manifested in terms of(i) hydration, metasomatism and serpentinization of depleted, MORB-type, sub-arc wedge mantle residual after repeated melt extraction; and(ii) refertilization of refractory mantle peridotite by boninitic melts derived at the initial stage of intraoceanic subduction. Serpentinized and metasomatized mantle dunites in this study record both MOR and intraoceanic arc signatures collectively suggesting suprasubduction zone affinity. The elevated abundances of Pd(4.4-12.2 ppb) with highΣPPGE/∑IPGE(2-3) and Pd/Ir(2-5.5) ratios are in accordance with extensive melt-rock interaction through percolation of boninitic melts enriched in fluid-fluxed LILE-LREE into the depleted mantle after multiple episodes of melt extraction. The high Pd contents with relatively lower Ir concentrations of the samples are analogous to characteristic PGE signatures of boninitic magmas and might have resulted by the infiltration of boninitic melts into the depleted and residual mantle wedge peridotite during fore-arc extension at the initial stage of intraoceanic subduction. The PGE patterns with high Os + Ir(2-8.6 ppb)and Ru(2.8-8.4 ppb) also suggest mantle rejuvenation by infiltration of melts derived by high degree of mantle melting. The trace, REE and PGE data presented in our study collectively reflect heterogeneous mantle compositions and provide insights into ocean-crust-mantle interaction and associated geochemical cycling within a suprasubduction zone regime. | Abhishek Saha M.Santosh Sohini Ganguly C.Manikyamba Jyotisankar Ray Jagadish Dutta | 2018 | Geoscience Frontiers2018，9，6： | 4 |
| 13 | 奥美拉唑治疗特发性肺纤维化相关咳嗽的随机、双盲、安慰剂对照试验显示文摘背景:咳嗽是特发性肺纤维化(IPF)患者的常见症状,严重影响患者的生活质量;胃酸反流会加重咳嗽症状,故而抑制胃酸分泌可减轻症状。本研究拟评估奥美拉哩治疗IPF相关咳嗽的大规模、多中心临床试验的可行性及安全性。方法:本研究为单中心、双盲、随机、安慰剂对照试验,筛选IPF患者:年龄40~85岁、有咳嗽史、VC<90%预测值和(或)TL CO<90%预测值的IPF患者;随机分为试验组(口服奥美拉哩20mg,2次/d)或安慰剂组;基线评估包括肺功能(PFTs)、6分钟步行距离(6MWD)、咳嗽和反流症状相关问卷(DeMRQ、RSI、GIQLI、LCQ)、咳嗽录音(24h/d);主要目的是评估该试验流程的可行性,主要终点指标为咳嗽频率(次数/24h)的变化。 | Dutta P Funston W Mossop H 孙宇新 黄慧 | 2019 | 中华结核和呼吸杂志2019，42，10： | 4 |
| 14 | MicroRNAs in Cancer显示文摘 | Yong Sun Lee Anindya Dutta | 2009 | Annual Review of Pathology: Mechanisms of Disease2009，，： | 4 |
| 15 | Effect of pouring temperature on cooling slope casting of semi-solid Al-Si-Mg alloy显示文摘Present trend of semi-solid processing is directed towards rheocasting route which allows manufacturing of near-net-shape cast components directly from the prepared semi-solid slurry. Generation of globular equi-axed grains during solidification of rheocast components, compared to the columnar dendritic structure of conventional casting routes, facilitates the manufacturing of components with improved mechanical properties and structural integrity. In the present investigation, a cooling slope has been designed and indigenously fabricated to produce semi solid slurry of Al-Si-Mg (A356) alloy and successively cast in a metallic mould. The scope of the present work discusses about development of a numerical model to simulate the liquid metal flow through cooling slope using Eulerian two-phase flow approach and to investigate the effect of pouring temperature on cooling slope semi-solid slurry generation process. The two phases considered in the present model are liquid metal and air. Solid fraction evolution of the solidifying melt is tracked at different locations of the cooling slope, following Schiel s equation. The continuity equation, momentum equation and energy equation are solved considering thin wall boundary condition approach. During solidification of the liquid metal, a modified temperature recovery scheme has been employed taking care of the latent heat release and change of fraction of liquid. The results obtained from simulations are compared with experimental findings and good agreement has been found. | Prosenjit Das Sudip K. Samanta Himadri Chattopadhyay Pradip Dutta | 2012 | Acta Metallurgica Sinica(English Letters)2012，25，5： | 4 |
| 16 | 碳排放成本的扩展价值分析显示文摘企业根据公认会计原则(GAAP)按期编制反映其财务业绩的报表。这样的报表固然提供了有用的信息,但人们也越来越感觉到,它们未能提供在今天的经济与社会环境下企业所需要的宽阔视野。为弥补这一缺陷,企业越来越多地采用反映“三重底线(triple-bottom line三重经营效果)”的报表,即采用三套指标,从三个方面(经济、社会和环境)衡量其业绩。 | Saurav Dutta Raef Lawson 杨继良(翻译) 周学园(翻译) | 2008 | 财会通讯(上)2008，，3： | 4 |
| 17 | 功能化多壁碳纳米管海绵状微球制备(英文)显示文摘通过催化化学气相沉积法合成了多壁碳纳米管(MW CNTs)。在相转移催化剂甲基三辛基氯化铵存在下,以高锰酸钾(KM nO4)为氧化剂在室温下对MW CNTs进行功能化处理。采用傅立叶变化红外光谱、热失重分析分析法对功能化MW CNTs进行表征。借助超声波降解法将功能化MW CNTs分散在二氯甲烷中形成悬浮液,然后将其悬浮液逐滴加至搅拌的聚乙烯醇溶液中形成海绵状微球。扫描电子显微镜(SEM)显示:形成的海绵状微球由松散缠结的MW CNTs构成,直径为50μm~150μm。该微球可望应用于轻型吸能涂料,催化剂以及电子学领域。 | Dhiraj Dutta Rama Dubey Jitendra Yadav T.C.Shami K.U.Bhasker Rao | 2011 | 新型炭材料2011，26，2： | 4 |
| 18 | Physico-chemical and elemental investigation of aqueous leaching of high sulfur coal and mine overburden from Ledo coalfield of Northeast India显示文摘 | Madhulika Dutta Puja Khare Sanchita Chakravarty Durlov Saikia Binoy K. Saikia | 2018 | International Journal of Coal Science & Technology2018，5，3： | 4 |
| 19 | Five-equation and robust three-equation methods for solution verification of large eddy simulation显示文摘This study evaluates the recently developed general framework for solution verification methods for large eddy simulation(LES) using implicitly filtered LES of periodic channel flows at friction Reynolds number of 395 on eight systematically refined grids.The seven-equation method shows that the coupling error based on Hypothesis I is much smaller as compared with the numerical and modeling errors and therefore can be neglected. The authors recommend five-equation method based on Hypothesis II, which shows a monotonic convergence behavior of the predicted numerical benchmark(S_C), and provides realistic error estimates without the need of fixing the orders of accuracy for either numerical or modeling errors. Based on the results from seven-equation and five-equation methods, less expensive three and four-equation methods for practical LES applications were derived. It was found that the new three-equation method is robust as it can be applied to any convergence types and reasonably predict the error trends. It was also observed that the numerical and modeling errors usually have opposite signs, which suggests error cancellation play an essential role in LES. When Reynolds averaged Navier-Stokes(RANS) based error estimation method is applied, it shows significant error in the prediction of S_C on coarse meshes. However, it predicts reasonable S_C when the grids resolve at least 80% of the total turbulent kinetic energy. | Rabijit Dutta Tao Xing | 2018 | Journal of Hydrodynamics2018，30，1： | 4 |
| 20 | 印度Ganga-Meghna-Brahmaputra平原及周围地区与孟加拉国地下水砷污染及其对健康影响的19年研究显示文摘基于近19年对印度Ganga—Meghna—Brahmaputra(简称GMB)平原(面积569749km^2,人口超过5亿)地下水砷污染的调查,可以确定印度Ganga—Brahmaputra平原(包括北方邦、比哈尔邦、恰尔康得邦、西孟加拉邦、阿萨姆邦)和孟加拉国普遍受到砷的污染。近期的调查研究也表明,除米佐拉姆邦外,其他各邦的地下水也受到不同程度的砷污染。至今为止.已对印度各邦和孟加拧国的175000份和50808份压把井水样进行了含砷量检测。并组织了一支包括皮肤科、神经科和妇产科医生在内的有经验的专家组,对上述地区125000人进行了临床检查,其中9%患有砷导致的皮肤病损症状。至今共采集分析了60000份生物样品。包括发样、指甲、尿样及皮肤鳞屑,其中80%的样品含砷量超过允许值,很多人由此受到砷的亚临床损害。在上述砷暴露地区.19000名儿童经过检查,近1100人患有砷导致的皮肤病损。该调查结果表明.儿童比成人更容易受到砷的毒性损害。在这种状况下.应着力解决饮水安全问题来减轻砷的苊害. | Ahamed S Hossain MA Mukharjee A Sengupta MK Das B Nayak B Pal A Mukherjee SC Pati S Dutta RN Saha KC Quamruzzaman Q Chakraborti D 付松波(译) 孙殿军(审校) | 2007 | 中国地方病学杂志2007，26，1： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员