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55篇 您的检索式:作者名="Chitta"
    题名 作者 年代 出处 被引量
1从热电厂粉煤灰中提取铝生产硫酸铝(英文)显示文摘目前从热电厂粉煤灰中提取有价金属的方法存在一定的局限性。研究用硫酸从热电厂粉煤灰中提取铝制备高纯硫酸铝(>99.0%)。以硫酸为萃取剂分别提取Talcher热电站和Vedanta铝业有限公司的粉煤灰中的铝制备硫酸铝。采用X射线衍射谱、傅里叶红外光谱和热重分析等手段对硫酸铝产品进行表征,用电感耦合等离子-光学发射光谱测量硫酸铝产品的纯度。结果表明,粉煤灰的浸出率取决于粉煤灰与硫酸的固液比以及粉煤灰的颗粒尺寸。物化分析结果表明,所得产品为Al_2(SO_4)_3·18H_2O,其铁含量较低,仅为0.08%(质量分数)。Seoul SANGITA Niva NAYAK Chitta Ranjan PA 2017Transactions of Nonferrous Metals Society of China2017,27,9:4
2Textural and geochemical characteristics of off shore sediment of North Bay of Bengal:A statistical approach for marine metal pollution显示文摘Metal pollution study on sediments of North Bay of Bengal sediments presented in this paper is based on existing Lithostratigraphy of upstream,mineralogy and geochemical analysis of 42 sediment samples.The statistical analysis identifies the metal pollution as well as its apparent source in the off shore regions.Samples were analyzed for grain size,organic content and heavy metals(Fe,Mn,Cr,Cu,Ni,Pb,Cd,Zn and Co) using the sequential extraction method to evaluate geochemical processes and pollution load.In an effort to surmise anthropogenic input,several approaches including classification by quantitative indexes such as enrichment factor,contamination factor,degree of pollution,pollution load index and geo accumulation index,were attempted.Metal speciation results indicate high%of Cd in exchangeable fraction of Mahanadi transect sediments where as a considerable amount of oxidizable fraction of Cr was detected at Dhamra.Quantitative indexes place North Bay of Bengal under moderately polluted zone due to high level of Cd.Normalization of metals to Fe indicated relatively high enrichment factors for Cd and Cr.Factor analysis identified seven possible types of geochemical associations where sediment pH plays a major role for the heavy metal mobility.The higher Cd concentration in exchangeable fraction as well as the higher EF for Cd and Cr present in sediment may pose a risk of secondary water pollution under slightest disturbance in the geo-chemistry of sediments.Comparison study with available data of near costal zones and upstream stratigraphy revealed that open cast mining,overburden dumping,mineral based industrial effluents were the major source of pollution for catchment area contamination.Bay of Bengal is likely to face a serious threat of metal pollution with the present deposition rates unless rigorous pollution control norms are applied.Sanghamitra Palleyi Sabnam Banoo Rabi Narayan Kar Chitta Ranjan Panda 2015International Journal of Sediment Research2015,30,3:3
3Knowledge update:semantics and complexity issues显示文摘Chitta Baral Yan Zhang 2005Artifical Intelligence2005,164,:1
4Donor-acceptor nanohybrids of zinc naphthalocyanine or zinc porphyrin noncovalently linked to single-wall carbon nanotubes for photoinduced electron transfer 显示文摘CHITTA R SANDANAYAKA A S D SCHUMACHER A L 2007Journal of Physical Chem istry C2007,111,19:1
5Biological effects and clinical significance of lenalidomide-inducded tumour flare reaction in patients with chronic lymphocytic leukaemia:in vivo evidence of immune activation and antitumour response显示文摘Chanan-Khan AA Chitta K Ersing N 2011Br J Haematol2011,155,:1
6Room temperature ferromagnetism in cubic GaN epilayers implanted with Mn + ions 显示文摘CHITTA V A COAQUIRA J A H FERNANDEZ J R L 2004Appl Phys Lett2004,85,17:1
7Protection against chronic infection and AIDS by an HIV envelope peptide-cocktail vaccine in a pathogenic SHIV-rhesus model显示文摘Nehete PN Chitta S Hossain MM 2001Vaccine2001,20,56:1
8Synthesis and evaluation of resveratrol derivatives as new chemical entities for cancer显示文摘Chaitanya Mulakayala B. Babajan P. Madhusudana C.M. Anuradha Raja Mohan Rao Ravi Prakash Nune Sunil Kumar Manna Naveen Mulakayala Chitta Suresh Kumar 2013Journal of Molecular Graphics and Modelling2013,,:1
9Identification of yin-yang regulators and a phosphorylation consensus for male germ cell-associated kinase (MAK)-related kinase显示文摘Fu Z Larson KA Chitta RK 2006Mol Cell Bi- ol2006,2622,:1
10Reduction of nitroaromatics with poly ( vinylpyridine ) complexes of palladium (Ⅱ) and platinum 显示文摘Chitta R Saha Somnath Bhattacharya 1987J Chem Tech Biotechnol1987,37,:1
11Revisiting the formation mechanism for coronal rain from previous studies显示文摘Solar coronal rain is classified generally into two categories:flare-driven and quiescent coronal rain.The latter is observed to form along both closed and open magnetic field structures.Recently,we proposed that some of the quiescent coronal rain events,detected in the transition region and chromospheric diagnostics,along loop-like paths could be explained by the formation mechanism for quiescent coronal rain facilitated by interchange magnetic reconnection between open and closed field lines.In this study,we revisited 38 coronal rain reports from the literature.From these earlier works,we picked 15 quiescent coronal rain events out of the solar limb,mostly suggested to occur in active region closed loops due to thermal nonequilibrium,to scrutinize their formation mechanism.Employing the extreme ultraviolet images and line-of-sight magnetograms,the evolution of the quiescent coronal rain events and their magnetic fields and context coronal structures is examined.We find that six,comprising 40%,of the 15 quiescent coronal rain events could be totally or partially interpreted by the formation mechanism for quiescent coronal rain along open structures facilitated by interchange reconnection.The results suggest that the quiescent coronal rain facilitated by interchange reconnection between open and closed field lines deserves more attention.李乐平 Hardi Peter Lakshmi Pradeep Chitta 宋红强 2021Research in Astronomy and Astrophysics2021,21,10:1
12Isopropylation of xylenes catalyzed by ultrastable zeolite Y (USY) and some other solid acid catalysts显示文摘CHITTA R RAJIV K 2002Journal of Catalysis2002,212,:1
13Series connection of IGBT's with active voltage balancing显示文摘Soonwook Hong Venkatesh Chitta David A Torrey 1999IEEE Transactions on Industry Applications1999,35,4:1
14Molecularly imprinted polymer ( MIP ) based piezoelectric microgravimetry chemosensor for selective determination of adenine 显示文摘Pietrzyk A Suriyanarayanan S Kutner W Chitta R Zandler M E D'Souza F 2010Biosensors and Bioelectronics2010,25,11:1
15Series connection of IGBTs with active voltage balancing显示文摘 Hong S 1999IEEE Transaction on Industry Application1999,33,4:1
16显示文摘BLAKEMORE J D CHITTA R SOUZA F D 2007Tetrahedron Letters2007,48,11:1
17Tropical cyclone Fani-perspective from the trauma and emergency department of an affected tertiary hospital显示文摘Purpose:To explore the epidemiological and clinical profile of patients admitted to the trauma and emergency department(TED)of a tertiary care hospital due to tropical cyclone Fani and highlight the challenges faced by the hospital in this natural disaster.Methods:A retrospective study was conducted in the TED in the affected zone.Data of all victims affected by the cyclone Fani on May 3,2019 were obtained from disaster records and medical case sheets.All patients except death on admission were included.Clinical variables included anatomical sites and severity of injuries which was assessed by revised trauma score(RTS)and injury severity score(ISS).Trauma injury severity score(TRISS)was also calculated.Results:Of 75 patients,74 were included and the other one was brought dead and thus excluded.The age,median±interquartile range(IQ),was 41.0(27.7-53.0)years.The male to female ratio was 2:1.Most of the wounded were transported by the police control room vans on day 1:first 10 h,50.0%;10-24 h,20.3%.The median±IQ range of RTS,ISS and TRISS were 20(14-28),7.84(7.841-7.841),and 97.4(91.6-98.9),respectively.Simple external injury was the dominant injury type.Polytrauma(ISS>15)was seen in 67%cases and spine injury in 14%cases(7%cervical and 7%thoracolumbar).Injury causes included sharp flying objects(broken pieces of glasses and asbestos)in 31%cases,followed by fall of trees in 20.3%.Twenty-four patients were discharged after primary treatment,30 admitted to the indoor-trauma ward or intensive care unit and 20 deferred or transferred to another center.There was no in-house mortality.Challenges were related to electricity failure,mobile network breakdown,infrastructure collapse,and delay in expertise repair from outside due to airport/railway closure.Conclusion:In cyclonic storm like Fani,sharp flying objects,fall of trees/poles and collapsing walls constitute the common mode of injuries causing harm to more than one body regions.Polytrauma was seen in the majority of patients though external injury was the commonest.The affected hospital had the uphill task of treating hospitalized patients as well as disaster victims.Chitta Ranjan Mohanty Mantu Jain Rakesh Vadakkethil Radhakrishnan Prabeer Chandra Mohanty Ritesh panda 2020Chinese Journal of Traumatology2020,23,4:1
18Dynamic rolling for a modular loop robot显示文摘Sastra J Chitta S Yim M 2009International Journal of Robotics Research2009,28,6:1
19Fuzzy C means clustering with prior biological knowledge显示文摘Tari L Chitta B Seungchan K 2009Journal of Biomedical Informatics2009,42,:1
20Suppression of the cell proliferation and invasion phenotypes in glioma cells by the LGI1 gene显示文摘Kunapuli P Chitta KS Cowell JK 2003Oncogene2003,22,26:1
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