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| 1 | A comparative corrosion behavior of Mg,AZ31 and AZ91 alloys in 3.5%NaCl solution显示文摘The corrosion behavior of Mg,AZ31 and AZ91 has been evaluated in 3.5%NaCl solution using weight loss,electrochemical polarization and impedance measurements.Corrosion rate derived from the weight losses demonstrated the occurrence of steeply fast corrosion reaction on AZ91 alloy after three hours of immersion,indicating the start of galvanic corrosion.An increase of corrosion rate with immersion time was also observed for AZ31 but with lesser extent than AZ91 alloy.Whereas Mg metals showed a decrease of corrosion rate with immersion time,suggesting the formation of a protective layer on their surfaces.In contrast,the corrosion current density(I_(corr))derived from the Tafel plots,exhibited their corrosion resistances in order of Mg>AZ91>AZ31.Electrochemical charge transfer resistance(R_(ct))and double layer capacitance measured by electrochemical impedance spectroscopy(EIS),are well in accordance with the measured I_(corr).EIS measurements with time and microstructural examination of the corroded and uncorroded samples are helpful in elucidation of results measured by electrochemical polarization. | I.B.Singh M.Singh S.Das | 2015 | Journal of Magnesium and Alloys2015，3，2： | 16 |
| 2 | 添加Al-TiB中间合金对铝合金组织、磨损和压缩变形行为的影响(英文)显示文摘在7178铝合金中添加不同比例的Al-10%TiB中间合金,考察TiB对铝合金的晶粒细化、磨损和压缩变形行为的影响。组织观察表明,TiB颗粒起着晶粒细化剂的作用,导致生成球状枝晶。当Al-TiB中间合金的添加量超过20%时,合金的耐磨性和强度随着中间合金添加量的增加而降低,即使其枝晶组织变得更细而接近于球状组织。 | D.P.MONDAL Nidhi JHA Anshul BADKUL S.DAS | 2012 | Transactions of Nonferrous Metals Society of China2012，22，5： | 2 |
| 3 | An assessment of waste issues associated with the production of new,lightweight fuel-efficient vehicles显示文摘 | B.E.Tonn S.M.Schexnayder J.H.Peretz S.Das | | 0，，203： | 1 |
| 4 | 查看详情显示文摘 | I.(Z)uti(c) J.Fabian S.Das Sarma | | 0，，02： | 1 |
| 5 | Entropy analysis of unsteady magneto-nanofluid flow past accelerating stretching sheet with convective boundary condition显示文摘The unsteady laminar magnetohydrodynamics(MHD) boundary layer flow and heat transfer of nanofluids over an accelerating convectively heated stretching sheet are numerically studied in the presence of a transverse magnetic field with heat source/sink.The unsteady governing equations are solved by a shooting method with the Runge-KuttaFehlberg scheme. Three different types of water based nanofluids, containing copper,aluminium oxide, and titanium dioxide, are taken into consideration. The effects of the pertinent parameters on the fluid velocity, the temperature, the entropy generation number, the Bejan number, the shear stress, and the heat transfer rate at the sheet surface are graphically and quantitatively discussed in detail. A comparison of the entropy generation due to the heat transfer and the fluid friction is made with the help of the Bejan number.It is observed that the presence of the metallic nanoparticles creates more entropy in the nanofluid flow than in the regular fluid flow. | S.DAS S.CHAKRABORTY R.N.JANA O.D.MAKINDE | 2015 | Applied Mathematics and Mechanics(English Edition)2015，36，12： | 1 |
| 6 | Electron-phonon coupling and spin fluctuations in the Ising superconductor NbSe_(2)显示文摘Ising superconductivity,observed in NbSe2 and similar materials,has generated tremendous interest.Recently,attention was called to the possible role that spin fluctuations(SF)play in this phenomenon,in addition to the dominant electron–phonon coupling(EPC);the possibility of a predominantly triplet state was discussed and led to a conjecture of viable singlet–triplet Leggett oscillations.However,these hypotheses have not been put to a quantitative test.In this paper,we report first principle calculations of the EPC and also estimate coupling with SF,including full momentum dependence.We find that:(1)EPC is strongly anisotropic,largely coming from the K-K0 scattering,and therefore excludes triplet symmetry even as an excited state;(2)superconductivity is substantially weakened by SF,but anisotropy remains as above;and,(3)we do find the possibility of a Leggett mode,not in a singlet–triplet but in an s_(++)–s_(±)channel. | S.Das H.Paudyal E.R.Margine D.F.Agterberg I.I.Mazin | 2023 | npj Computational Materials2023，，1： | 1 |
| 7 | Computed tomography‐based tissue‐engineered scaffolds in craniomaxillofacial surgery显示文摘 | M. H.Smith C. L.Flanagan J. M.Kemppainen J. A.Sack H.Chung S.Das S. J.Hollister S. E.Feinberg | 2007 | Int. J. Med. Robotics Comput. Assist. Surg2007，，3： | 1 |
| 8 | 查看详情显示文摘 | V.Singh D.Joung L.Zhai S.Das S.I.Khondaker and S.Seal | | 0，，08： | 1 |
| 9 | Effect of high pressure on K-value,microbial and sensory characteristics of yellowfin tuna(Thunnus albacares)chunks in EVOH filns during chill storage显示文摘 | C.K.Kamalakanth J.Ginson J.Bindu R.Venkateswarlu S.Das O.P.Chauhan T.K.S.Gopal | | 0，，04： | 1 |
| 10 | Colorectal carcinoma in young adults: a retrospective study on Indian patients: 2000–2008显示文摘 | S.Gupta D.Bhattacharya A. N.Acharya S.Majumdar P.Ranjan S.Das | 2010 | Colorectal Disease . 2010 (10On)2010，，： | 1 |
| 11 | 查看详情显示文摘 | C.Nayak S.H.Simon A.Stern M.Freedman and S.Das Sarma | | 0，，： | 1 |
| 12 | 采用粗空心微球低压粉末冶金法制备空心微球复合泡沫钛(英文)显示文摘在低压下采用粉末冶金法,使用粗尺寸空心微球制备出不同相对密度的钛空心微球复合泡沫材料。在压力为60~70 MPa,通过冷压制备得到不同相对密度的泡沫钛。研究冷压压力与空心微球破碎倾向和相对密度的函数关系。研究制备的泡沫钛材料的压缩变形行为,考虑到实际应用,建立了平台应力、弹性模量、致密化应变和能量吸收之间的经验关系。对比泡沫钛和致密钛的性能指标,发现在工程应用中泡沫钛是致密钛的优秀替代物。 | N.JHA D.P.MONDAL M.D.GOEL J.D.MAJUMDAR S.DAS O.P.MODI | 2014 | Transactions of Nonferrous Metals Society of China2014，24，1： | 1 |
| 13 | A rational preparation strategy of phase tuned MoO_(3) nanostructures for high-performance all-solid asymmetric supercapacitor显示文摘In this work,phase and morphology-tuned MoO_(3) nanostructures are synthesized through a novel modified co-precipitation method,and their electrochemical properties are investigated.For the first time,such a simple surfactant-assisted synthesis process aided by minor temperature variations is reported which results in phase transition of the nanoparticles from h-MoO_(3) nano-rods to a-MoO_(3) nano-flakes.The nanostructures thus developed are highly porous and crystalline with significantly large specific surface area as compared to previous literature.The theoretical bandgap energy of the optimized sample calculated using Perdew-Zunger local density approximation(LDA) is in good agreement with the experimental findings.An overall structural,morphological,and surface-behavioural analysis predicts the electrochemical superiority in 2D a-MoO_(3).The cyclic voltammetry and galvano-potentiometry measurements of 2D a-MoO_(3) in the potential window of-0.6 V to +0.2 V present the highest pseudosupercapacitive response with a maximum specific capacitance of 829 F g^(-1)at 2 A g^(-1)as compared to h-MoO_(3) (452 F g^(-1)) and h@a-MoO_(3) (783 F g^(-1)).Thus,the MoO_(3) 2D nanostructures synthesized through our novel synthesis technique display excellent specific capacitance as compared to previous reported data.Additionally,a-MoO_(3) exhibits a galvanostatic charging-discharging cyclic stability of about 91%after 2000 cycles,indicating that it can serve as an excellent electrode material for supercapacitors.A solid-state asymmetric supercapacitor device is successfully constructed using a-MoO_(3) which can light up 4 red LEDs for 10 s.The specific energy density of the device reaches a maximum value of 36.3 W h kg^(-1)at the power density of 50 W kg^(-1). | M.Kundu D.Mondal I.Mondal A.Baral P.Halder S.Biswas B.K.Paul N.Bose R.Basu S.Das | 2023 | Journal of Energy Chemistry2023，，12： | 0 |
| 14 | 诊断中国金融稳定显示文摘在全球金融危机的惊涛骇浪中,拥有世界上发展最快的金融体系的中国,如何面对维护金融稳定的挑战?中国面临的短期和中期风险是什么?它们是否可控?中国政府应采取什么金融政策和改革措施来应对中期脆弱性并促进经济持续增长?国际货币基金组织和世界银行(下分别称基金和世行)与中国政府密切合作开展的“金融部门评估规划”(FSAP)试图回答这些问题。 | Udaibir S.Das 孙涛 | 2011 | 新世纪周刊2011，，47： | 0 |
| 15 | Experimental Observation of Bright and Dark Solitons Mode-Locked with Zirconia-Based Erbium-Doped Fiber Laser显示文摘We demonstrate the generation of dark and bright solitons with our homemade zirconia-based erbium-doped fiber and graphene oxide(GO) saturable absorber in anomalous dispersion region.The GO is fabricated using an abridged Hummer's method,which is combined with polyethylene oxide to produce a composite film.The film is sandwiched between two optical ferrules and embedded in the laser cavity to enhance its birefringence and nonlinearity.The self-starting bright soliton is easily generated at pump power of 78 mW with the whole length cavity of 14.7 m.The laser produces the bright pulse train with repetition rate,pulse width,pulse energy and central wavelength being 13.9 MHz,0.6 ps,2.74 p J and 1577.46 nm,respectively.Then,by adding the 10 m of single mode fiber into the laser cavity,dark soliton pulse is produced.For the formation of dark pulse train,the measured repetition rate,pulse width,pulse energy and central wavelength are 8.3 MHz,20 ns and 4.98 p J and1596.82 nm,respectively.Both pulses operate in the anomalous region. | A.M.Markom S.J.Tan H.Haris M.C.Paul A.Dhar S.Das S.W.Harun | 2018 | Chinese Physics Letters2018，35，2： | 0 |
| 16 | IS986 DNA指纹法应用于香港肺结核病人短程化学治疗前、中和后的连续分支杆菌分离株显示文摘把总共266株结核分支杆菌分离株做DNA RFLP分析。分离株是从短程化疗并随访2年的病人的每月痰培养中获得的,分别来自42名短程化疗后复发的病人和42名化疗后仅一次培养阳性的病人,包括治疗前分离的1株和治疗期间最后一次分离的1株分离株,以及复发期间相距至少2个月培养的2株式化疗后分离的1株分离株。在DNA RFLP分析前先编码,然后用肉眼观察相同的或几乎相同的带型进行分组。译码后,每位病人显然是被1个具有不同带型(即指纹图谱)的菌株感染的。100对治疗前分离株与化疗期间最后一次的培养菌株或复发期间第一次分离株与第二次分离株的配对比较中,15对带型不同;其中4对复查后发现是由于阅读错误所致(错误率1.5%),其余11对(11%)带型明显不同。42对复发病人中,5对(12%)复发分离株的指纹图谱与治疗前分离株有显著差别。相反,40对化疗后的孤立的阳性培养菌株与最初的分离株的配对比较中,36对(90%)的指纹图谱有显著差别。无法确定这其余的10—12%的指纹差别多少是由于临床混合感染,多少是实验室交叉污染所致。84名病人的连续分离株中,7名(8%)显示一步1或2条带的增多或减少,提示指纹图型的演变。RELP指纹方法作为鉴别菌株的手段显然优于噬菌体分型。 | S.Das S.L.Chan B.W.Allen D.A.Mitchison D.B.Lowrie 吴雪琼 | 1995 | 国际结核病与肺部疾病杂志1995，0，3： | 0 |
| 17 | 商用车辆采用低速试验数据判断动态车辆侧翻的临界值显示文摘已经开发了一个确定动态车辆侧翻临界值的方法,该方法采用一侧翻平面车辆模型和以低速进行试验测量的侧向加速度为基础仿真。然后采用曲线拟合技术推断侧向加速度和前进速度的临界值。该方法采用变通道运动试验证实,并获得一个良好的相互关系。本方法很好适应确定侧翻临界值一目标试验程序,仅需要测量侧向加速度。 | Niladri S.Das Bangalor A.Suresh James C.Wambold | 2014 | 传动技术2014，，1： | 0 |
| 18 | Characterization of electrical properties of AlGaN/GaN interface using coupled Schrodinger and Poisson equation显示文摘The electrical characterization of AlGaN/GaN interface is reported.The dependence of two-dimensional electron gas(2-DEG) density at the interface on the Al mole fraction and thickness of AIGaN layer as well as on the thickness of GaN cap layer is presented.This information can be used to design and fabricate AlGaN/GaN based MODFET(modulation doped field effect transistor) for optimum DC and RF characteristics. | S.Das A.K.Panda G.N.Dash | 2012 | Journal of Semiconductors2012，33，11： | 0 |
| 19 | Dual-Wavelength Holmium-Doped Fiber Laser Pumped by Thulium-Ytterbium Co-Doped Fiber Laser显示文摘We present an all-fiber dual-wavelength holmium-doped fiber laser operating in 2 μm region using a newly developed holmium-doped fiber(HDF) as a gain medium.The proposed fiber laser is constructed by using a hybrid gain medium,i.e.,a thulium-ytterbium co-doped fiber(TYDF) and an HDF in conjunction with a simple half-opened linear cavity,which is formed by a broadband mirror and an output coupler reflector.Without the HDF,the TYDF laser operates at wavelengths of 1991 and 1999 nm with a signal-to-noise ratio of more than 34 dB and the slope efficiency of 26.16%.With the HDF,dual-wavelength output lines are obtained at 2075 and 2083 nm with signal-to-noise ratios of more than 17 dB,3dB bandwidth of less than 0.2 nm and the power difference between the two peaks of less than 1 dB at the TYDF laser pump power of 320 mW. | A.A.Latiff A.Dhar S.W.Harun I.M.Babar S.Das M.C.Paul H.Ahmad | 2016 | Chinese Physics Letters2016，33，5： | 0 |
| 20 | A Flat-Gain Double-Pass Amplifier with New Hafnia-Bismuth-Erbium Codoped Fiber显示文摘An efficient and compact double-pass optical fiber amplifier is demonstrated using a newly developed hafnia bismuth erbium co-doped fiber(HBEDF) as a gain medium. The HBEDF is fabricated using a modified chemical vapor deposition in conjunction with solution doping. The fiber has an erbium ion concentration of 12500 ppm.At the optimum length of 0.5 m, the HBEDF amplifier(HBEDFA) achieves a flat gain of 26 d B with a gain variation of less than 1.5 d B within a wavelength region from 1530 to 1560 nm when the input signal and pump power are fixed at-30 d Bm and 140 m W, respectively. On the other hand, at the input signal power of-10 d Bm,the HBEDFA also achieves a flat gain of 14.2 d B with a gain variation of less than 2.5 d B within a wide wavelength region from 1525 to 1570 nm. Compared with the conventional zirconia erbium co-doped fiber based amplifier,the proposed HBEDFA obtains a more efficient gain and lower noise figure. For an input signal of-30 d Bm, the gain improvements of 6.2 d B and 4.8 d B are obtained at 1525 nm and 1540 nm, respectively. | Alabbas A.Al-Azzawi Aya A.Almukhtar P.H.Reddy D.Dutta S.Das A.Dhar M.C.Paul U.N.Zakaria S.W.Harun | 2018 | Chinese Physics Letters2018，35，5： | 0 |
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