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| 1 | Magnetic and flotation studies of banded hematite quartzite (BHQ) ore for the production of pellet grade concentrate显示文摘To identify and establish beneficiation techniques for banded hematite quartzite (BHQ) iron ore, a comprehensive research on BHQ ore treatment was carried out. The BHQ ore was assayed as 38.9wt% Fe, 42.5wt% SiO2, and 1.0wt% Al2O3. In this ore, hematite and quartz are present as the major mineral phases where goethite, martite, and magnetite are present in small amounts. The liberation of hematite particles can be enhanced to about 82% by reducing the particle size to below 63 μm. The rejection of silica particles can be obtained by magnetic and flotation separation techniques. Overall, the BHQ ore can be enriched to 65.3wt% Fe at 61.9% iron recovery. A flowsheet has been suggested for the commercial exploitation of the BHQ ore. | B. Das B.K.Mishra S. Prakash S.K.Das P.S.R.Reddy S.I.Angadi | 2010 | International Journal of Minerals,Metallurgy and Materials2010，17，6： | 7 |
| 2 | SAGD和Vapex方法的油藏筛选显示文摘在重油开采作业面临着油价和经济利润萎靡不振的局面下,从技术角度来看蒸汽辅助重力泄油(SAGD)和蒸汽提取(Vapex)法似乎很有远景。本文在对比重油热采方法SAGD与Vapex的基础上详细介绍了这两种方法的油藏筛选指南。 | A.K.Singhal S.K.Das S.M.Keggitt 王忠 马玉春 | 1998 | 国外油田工程1998，14，3： | 3 |
| 3 | Prediction of the residual strength of clay using functional networks显示文摘Landslides are common natural hazards occurring in most parts of the world and have considerable adverse economic effects. Residual shear strength of clay is one of the most important factors in the determination of stability of slopes or landslides. This effect is more pronounced in sensitive clays which show large changes in shear strength from peak to residual states. This study analyses the prediction of the residual strength of clay based on a new prediction model, functional networks(FN) using data available in the literature. The performance of FN was compared with support vector machine(SVM) and artificial neural network(ANN) based on statistical parameters like correlation coefficient(R), Nash–Sutcliff coefficient of efficiency(E), absolute average error(AAE), maximum average error(MAE) and root mean square error(RMSE). Based on R and E parameters, FN is found to be a better prediction tool than ANN for the given data. However, the R and E values for FN are less than SVM. A prediction equation is presented that can be used by practicing geotechnical engineers. A sensitivity analysis is carried out to ascertain the importance of various inputs in the prediction of the output. | S.Z.Khan Shakti Suman M.Pavani S.K.Das | 2016 | Geoscience Frontiers2016，7，1： | 2 |
| 4 | Natural convection of nano-fluids显示文摘 | N.Putra W.Roetzel S.K.Das | | 0，，8： | 1 |
| 5 | Reducing the magnetic losses of amorphous ribbon显示文摘 | D.Rayboulf M.Meola R.Bye S.K.Das | | 0，，： | 1 |
| 6 | Chlorine emission during the chlorination of water-case study显示文摘 | R.K.Gangopadhyaym S.K.Das | | 0，，03： | 1 |
| 7 | Quantitative mineralogical characterization of chrome ore beneficiation plant tailing and its beneficiated products显示文摘Mineralogical characterization and liberation of valuable minerals are primary concerns in mineral processing industries. The present investigation focuses on quantitative mineralogy, elemental deportment, and locking–liberation characteristics of the beneficiation of tailings from a chrome ore beneficiation plant in the Sukinda region, Odisha; methods used for the study of the beneficiated tailings are QEMSCAN?, X-ray diffraction(XRD), and mineral chemistry by a scanning electron microscope equipped with an energy-dispersive spectrometer(SEM-EDS). The tailing sample was fine grained(69.48wt% below 45 μm size), containing 20.25wt% Cr2O3 and 39.19wt% Fe2O3, with a Cr:Fe mass ratio of 0.51. Mineralogical investigations using QEMSCAN studies revealed that chromite, goethite, and gibbsite are the dominant mineral phases with minor amounts of hematite, kaolinite, and quartz. The sample contained 34.22wt% chromite, and chromite liberation is more than 80% for grains smaller than 250 μm in size. Based on these results, it was predicted that liberated chromite and high-grade middling chromite particles could be separated from the gangue by various concentration techniques. The tailing sample was beneficiated by hydrocyclone, tabling, wet high-intensity magnetic separation(WHIMS), and flotation in order to recover the chromite. A chromite concentrate with 45.29wt% Cr2O3 and a Cr:Fe mass ratio of 1.85 can be produced from these low-grade chromite ore beneficiation plant rejects. | S.K.Das | 2015 | International Journal of Minerals,Metallurgy and Materials2015，22，4： | 1 |
| 8 | 采用快速凝固工艺生产高性能镁合金显示文摘<正> 为了满足未来航空工业的需要,研制新镁合金工作的进展是缓慢而有限的.早期所作的粉末冶金镁合金的研究成效不大.在50年代,Busk和Leontis用惰性气体雾化金属熔体来生产各种镁合金粉末之后,旋转圆盘雾化工艺也应用于生产镁粉.不过,在这些早期的雾化工艺冷却速度不能达到很高.后来在应用雾化工艺生产快速凝固镁粉方面的工作是,Isserow和Rizzitano用旋转电极法制造工业合金ZK60A(Mg-6%Zn-0.45%Zr)粉末.不过,用旋转电极法制得的粉末,平均粉粒尺寸大约为100微米,这种粉粒的冷却速度<10~4K/ | S.K.Das 邹宗跃 | 1989 | 轻合金加工技术1989，17，9： | 0 |
| 9 | 黄麻和玫瑰麻边行播种节省种子和肥料显示文摘植物在边行比在田间能得到更多的阳光、水分和空气,以致边行植株生长更为茁壮和有较多的分枝(Gomez和Dedatta 1971,Gomez1972)。因此试验用这种播种方法节省圆果种黄麻、长果种黄麻和玫瑰麻昂贵的种子和肥料开支。成对的每第三和第四行为空行,研究空行种生长期短的间作作物如绿豆和黑豆以及其对主要纤维作物产量的不利影响。 | P.C.Mitra B.C.Mandal G.C.Biswas S.K.Das B.K.Samanta 王朝云 | 1991 | 中国麻作1991，13，4： | 0 |
| 10 | Pressure Drop of Non-Newtonian Liquid Flow Through Elbows显示文摘Experimental data on the pressure drop across different types of elbow for non-Newtonian pseudoplastic liquid flow in laminar condition have been presented. A generalized correlation has been developed for predicting the frictional pressure drop across the elbows in the horizontal plane. | T.K.Banerjee S.K.DAS | 2000 | Chinese Journal of Chemical Engineering2000，8，4： | 0 |
| 11 | Enhancement of photocatalytic activity by femtosecond-laser induced periodic surface structures of Si显示文摘Laser induced periodic surface structures(LIPSS)represent a kind of top down approach to produce highly reproducible nano/microstructures without going for any sophisticated process of lithography.This method is much simpler and cost effective.In this work,LIPSS on Si surfaces were generated using femtosecond laser pulses of 800 nm wavelength.Photocatalytic substrates were prepared by depositing TiO2 thin films on top of the structured and unstructured Si wafer.The coatings were produced by sputtering from a Ti target in two different types of oxygen atmospheres.In first case,the oxygen pressure within the sputtering chamber was chosen to be high(3×10^–2 mbar)whereas it was one order of magnitude lower in second case(2.1×10^–3 mbar).In photocatalytic dye decomposition study of Methylene blue dye it was found that in the presence of LIPSS the activity can be enhanced by 2.1 and 3.3 times with high pressure and low pressure grown TiO2 thin films,respectively.The increase in photocatalytic activity is attributed to the enlargement of effective surface area.In comparative study,the dye decomposition rates of TiO2 thin films grown on LIPSS are found to be much higher than the value for standard reference thin film material Pilkington Activ^TM. | P.Satapathy A.Pfuch R.Grunwald S.K.Das | 2020 | Journal of Semiconductors2020，41，3： | 0 |
| 12 | Effect of equiproprotional substitution of Zn and Mn in BaTiO_(3)ceramic-An index to multiferroic applications显示文摘This paper reports that ferromagnetism(FM)can be induced in ferroelectric barium titanate(BaTiO_(3))ceramic with selection of appropriate substituents like Zn and Mn.High density polycrystalline samples of Zn and Mn substituted BaTiO_(3)(Ba_(1-x)Zn_(x)Ti_(1-x)Mn_(x)O_(3),x=0,0.02,0.04,0.06,0.08 and 0.1)were prepared using slow step solid state sintering technique to study the effect of equiproprotional substituents on structural,ferroelectric and magnetic properties of BaTiO_(3)(BTO).High precision electrical and magnetic measurements were carried out along with XRD,XPS,and SEM to understand and co-relate magnetic and ferroelectric hysteresis loop observed at room temperature with different values of‘x’.It is seen that ferroelectric hysteresis loop(P~E)is deteriorated(became lossy type)with the increase of Zn and Mn concentration.However,at x=0.1,the material showed the signature of room temperature ferromagnetism,which is an index for BTO to became a promising material for multiferroic applications.M~H loops observed in Zn and Mn substituted BTO are expected to be due to the formation of oxygen vacancies and exchange interaction induced magnetism. | S.K.DAS P.P.ROUT S.K.PRADHAN B.K.ROUL | 2012 | Journal of Advanced Ceramics2012，1，3： | 0 |
| 13 | 快速凝固的高性能镁合金显示文摘为满足航空工业未来的需要而对镁合金进行的改进的研究规模不大,进展也慢。以前有关粉末冶金镁合金的研究成果也廖廖无几。50年代,Busk和Leontis用惰性气体雾化法制成了各种镁合金粉末。后来,有人用转盘雾化法生产出了镁粉。然而那些早期雾化法的冷却速度大概都不很高。后来,Isserow和Rizzitano从事雾化快速凝固镁粉工作。 | S.K.Das C.F.Chang D.Raybould 牛殿臣 | 1989 | 轻金属1989，，6： | 0 |
| 14 | 轮作制度的经济效益 | S.K.Das 黄守宏 | 1989 | 世界热带农业信息1989，，4： | 0 |
| 15 | Influence of coke structure on coke quality using image analysis method显示文摘The quality of coke affects the performance of the blast furnace, factors affecting coke quality include coal properties, coal charge granulometry and carbonization conditions. The coke properties in elude the size analysis, cold strength (Micum Indices-M4(). MI0) and hot strength (Coke Reactivity Index-CRI, Coke Strength after Reaction-CSR) properties and structural properties such as coke structure and texture. Structural properties comprise the porosity, pore-cell wall thickness and pore sizes, while textures consist of the carbon forms in the coke. In present work, advanced method such as image analysis method was used to interpret coke microstructure. Conventional methods such as determination of coke porosity by measurement of real and apparent density and mercury porosimetry have a number of limitations. Coke size, magnification, number of image frames captured, process of pellet preparations and coke properties such as M4(), M|0, CRI and CSR (low, medium and high values) were taken as variables for experimental purposes. The coke structure parameters such as porosity, length, perimeter, breadth, roundness, pore-wall thickness and pore size distribution of the pores were determined by image analysis method. This method provided average porosity in addition to pore-wall thickness and pore-size distribution. The pore wall thickness measuremenl by image analysis method provided significant correlations with M40, CRI and CSR values. This explained the usability of image analysis for coke structure measurement. | B.Ghosh B.K.Sahoo B.Chakrabortv K.K.Manjhi S.K.Das J.N.Sahu Atul K.Varma | 2018 | International Journal of Coal Science & Technology2018，5，4： | 0 |
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