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10篇 您的检索式:作者名="P.Das"
    题名 作者 年代 出处 被引量
1D-N认知评估系统在AD/HD儿童认知评估中的应用显示文摘研究采用基于PASS理论建构的D-N认知评估系统(CAS)作为主要评估工具,以临床推介的18名AD/HD儿童和18名在性别、年龄及智力水平与临床样本相匹配的正常儿童为被试,对其PASS认知过程特征开展比较研究,探查临床组儿童潜在的认知过程异常,研究结果表明:(1)临床AD/HD儿童在CAS总量表分上显著低于正常对照组儿童;(2)临床AD/HD儿童与正常对照组儿童在计划和注意过程分数上存在显著差异,且临床AD/HD儿童的计划和注意分量表分数可很好地预测其在DSM-IV上的注意涣散评估分数;(3)临床AD/HD组儿童与正常对照组儿童在同时性加工和继时性加工水平上则没有显著差异。邓赐平 傅丽萍 李其维 Jagannath P.Das 2009心理发展与教育2009,25,3:2
2Antimicrobial potential of a lipopeptide biosurfactant derived from a marine Bacillus circulans显示文摘P.Das S.Mukherjee R.Sen 2008Journal of Applied Microbiology2008,,6:1
3Risk of dysplasia and adenocarcinoma following restorative proctocolectomy for ulcerative colitis显示文摘P.Das M. W.Johnson P. P.Tekkis R. J.Nicholls 2006Colorectal Disease2006,,1:1
4Renewable H2 from glycerol steam reforming:Effect of La2O3 and CeO2 addition to Pt/Al2O3 catalysts显示文摘T.Montini R.Singh P.Das 0,,:1
5Composition and Genesis of Zeolitic Claystones from the Central Indian Ocean Basin显示文摘我们检验了为锰小瘤和外壳在收集的功课期间从中央印度洋盆(CIOB ) 恢复的超过五十使硬化的沉积。样品与 palagonite 一起或在锰小瘤的原子核以内作为铁锰合金氧化物在上或在改变的海洋的暗岩的底层上是在场的或在改变的海洋的暗岩的底层上的平板发生。矿物学上和作文联盟者,样品显示出 phillipsite, palagonite 和 montmorillonite 的混合物。我们建议火山发生在 CIOB 的遗传因子的先锋受到在低温度条件的影响下面改变改变的度,导致 zeolitic 泥土石头的形成。CIOB 样品有类似到在世界海洋从各种各样的地点报导的那些。Sridhar D.Iyer M.Sudhakar P.Das 2007Acta Geologica Sinica(English Edition)2007,81,5:0
6OSCILLATION THEOREMS FOR DELAY AND NEUTRAL DELAY DIFFERENTIAL EQUATIONS显示文摘Oscillation criteria for the delay differential equationx′(t)+p(t)x(t-т(t))=0,where p, т are non-negative real-valued continuous functions are investigated inthe case when the numbers k=integral from n=t-т(t) to t(p(s)ds),L=integral from n=t-т(t) to t(p(s)ds)satisfy 0≤k<1/e and 1/e≤L<1. The present result improves almost allresults of the literature concerning it. Furthermore, it is established that allsolutions of the odd-order neutral delay differential equation(x(t)-px(t-т))n+Q(t)x(t-σ)=0,where 0≤p<1,т,σ∈(0,∞)and Q(t)≥0,are oscillatory ifintegral from n=t-σ to t ((t-s)n-1Q(s)ds>(1/e)(1-p)(n-1))!.This result generalizes a theorem of Gopalsamy et. al (Czech. Math. J., 42(1992),313-323)and also extends a very well-known result of Ladas (ApplicableAnalysls, 9(1979),93-98).P.Das B.B.Mishria C.R.Dash 2003Annals of Differential Equations2003,19,4:0
7Tectonochemistry and p-t Conditions of Ramgarh and Almora Gneisses from Askot Klippe,Kumaun Lesser Himalaya显示文摘The chemical and petrological correlation of metamorphic nappes and klippes overlying the Proterozoic sedimentary units in the Kumaun Himalaya is still debated. The Ramgarh and Almora gneisses, not previously distinguished in the Askot Klippe, show distinct field, petrological and chemical signatures markedly similar to the tectonostratigraphic disposition of the Almora Nappe. A negative Eu anomaly in the Ramgarh granitic gneisses indicates lesser plagioclase fractionation while the Eu anomaly in the Almora pelitic gneisses is likely to have been controlled by feldspar crystallization in restites. During the anatexis at > 776°C temperature and >6.6 kbar pressure, the melt moved slightly away to its crystallization sites. The Rb/Sr ratio ?0.54 and Nb ?10 ppm is consistent with the granodioritic composition. The negative Sr anomaly in the underlying Ramgarh granitic gneisses indicates a distinct mantle derived source/plagioclase fractionation with a notable correspondence to other late orogenic granites, particularly the basement Ulleri gneisses from the Nepal Himalaya. Ramgarh gneisses plot in the late-and post-COLG field. The Askot ensemble is likely to be the tectonometamorphically reworked basement, viz. the Ramgarh Group along with its metapelitic cover o f the Almora Group, together comprising southward thrust remnants of the leading edge of the Indian Plate that collided with Tibet during the Tertiary Himalayan orogeny.Biraja P.DAS Mallickarjvm JOSHI Ashutosh KUM AR 2019Acta Geologica Sinica(English Edition)2019,93,2:0
8在直接序列接收机中借助最小均方自适应滤波器实现同步显示文摘已经证明,在直接序列扩展频谱接收机中,最小均方自适应滤波器是一种抑制窄带干扰的有效技术.大部分研究曾假设自适应滤波器可以获得完善的同步,即在干扰源抑制以前获得同步.遗憾地是由于干扰的影响,难于或根本不可能获得同步.本文介绍一种接收机结构,它在自适应干扰源抑制之后能获得同步,并反馈到抑制滤波器.已指出的误码率的效果,证明了延迟锁定环连同自适应滤波器在单音干扰中的性能.这些性能效果与那些具有正确完善同步的自适应滤波器性能效果相似.Gary J.Saulnier Sheau-Fang Lei P.Das 禄国法 1992通信技术与发展1992,,2:0
9含1,2二取代的苯并咪唑配体的Zn(Ⅱ)络合物上化学固定CO_2转化为环状碳酸酯(英文)显示文摘合成了一种新的Zn(Ⅱ)配合物ZnCl_2(L1)_2](1)(L1为2-(2-噻吩)-1-(2-噻吩甲基)-1H-苯并咪唑),并采用NMR和IR光谱、元素分析、ESI-HRMS光谱测定和热重分析等对它进行了表征,其分子结构也由单晶X射线衍射确定.络合物1含有单核四面体Zn(Ⅱ)单元,即所谓的锁定的几何结构,这源自分子中存在弱的分子间S···p和p-p配体间相互作用.通过简易的合成路线即可制得苯并咪唑配体及其与Zn(Ⅱ)配合物.采用CO_2与环氧化物耦合生成环状碳酸酯反应考察了1的催化活性,以及反应条件的影响.该配合物在无溶剂条件下可高效催化多种环氧化物的转化,具有较好的转化率,TONs和TOFs.Jorge L. S. Milani Igor S. Oliveira Pamella A. Dos Santos Ana K. S. M. Valdo Felipe T. Martins Danielle Cangussu Rafael P.Das Chagas 2018Chinese Journal of Catalysis2018,39,2:0
10半固态TiB_2增强铝基复合材料的流变性能(英文)显示文摘研究半固态TiB2增强Al-Mg合金复合材料浆料的流变性能,对半固态加工过程中的充型模拟是必需的。在一台Searle型流变仪的加热室内,将TiB2增强原位Al-Mg合金复合材料样品再熔化,随后将温度降低到半固态温度范围。为了复合材料的流变性能,进行三种不同的实验:稳态实验、连续冷却实验和等温实验。此外,从实验得到的滞回曲线证实了浆料的触变性。结果表明:当等温保持时,复合材料浆料显示假塑性和剪切变稀行为直到剪切速率达到1300 s-1;在更高剪切速率(>1300 s-1)下,它显示出剪切增稠趋势,这可能是由于不可变形的纳米TiB2颗粒的团聚引起的。通过剪切速率的间歇阶跃变化(剪切突变实验)也证实了浆料的假塑性行为。S.THADELA B.MANDAL P.DAS H.ROY A.K.LOHAR S.K.SAMANTA 2015Transactions of Nonferrous Metals Society of China2015,25,9:0
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