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647篇 您的检索式:作者名="A.K."
    题名 作者 年代 出处 被引量
1三株病原真菌对稗草生防潜力的研究显示文摘从稻田中采集自然感病的稗草标样,分离获得10余种病原真菌,经生测,链格孢菌、尖角突脐孢菌和内脐孢菌是3株很有希望的稗草生防潜力菌。对它们的生长及产孢特性、寄主范围及孢子悬浮液喷雾接种对水稻和稗草的致病性等进行了研究。结果表明,3个菌各有优缺点。链格孢菌对稗草致病力稍差,对水稻有轻度感染,但其产孢速度快,产孢量大;尖角突脐孢菌对稗致病力强,对稻无影响,但产生孢子慢,气生菌丝多;内脐孢菌对稗致病力强,对稻安全,菌落生长较慢,但产孢速度快,产孢量多,气生菌丝少。黑暗、空气充足有利于3菌株的生长及产孢。黄世文 段桂芳 余柳青 Watson A.K. 2001植物保护学报2001,28,4:18
2Production of pig iron from red mud waste fines using thermal plasma technology显示文摘Red mud, an insoluble residue produced during alkali leaching of bauxite, is considered as a low-grade iron ore containing 30% to 50% iron. The present paper deals with the use of thermal plasma technology for producing pig iron from red mud waste fines. The smelting reduction of red mud was carried out in a 35 kW DC extended arc thermal plasma reactor. Red mud was properly mixed with fluxes and graphite (fixed carbon, 99%) as a reductant as per stoichiometric requirement. The effect of various process parameters like a reductant, fluxes and smelting time on iron recovery was studied and optimized. An optimum condition for the maximum recovery of iron was obtained. A new thermal plasma process applicable to direct iron making from red mud waste fines that would achieve significant utilization of red mud was proposed.K. Jayasankar P.K. Ray A.K. Chaubey A. Padhi B.K. Satapathy P.S. Mukherjee 2012International Journal of Minerals,Metallurgy and Materials2012,19,8:17
3个性化送风波动对热感觉和室内空气品质的影响显示文摘为了解个性化通风环境下波动风对人体热舒适和室内空气品质的影响,在系统中实现传统的稳态送风和频率分别为0.1、0.2、0.3Hz的波动送风。采用受试者的主观感受和示踪气体测量两种方式,比较了这几种送风对改善室内热环境和空气品质的效果。实验表明:室温28℃时,个性化通风下人体最喜爱的送风波动频率为0.2Hz。该频率的波动风相对于稳态风有更强的冷却作用,并且该波动风不会降低吸入空气的品质。杨建荣 李先庭 彦启森 Melikov A.K. 2003清华大学学报(自然科学版)2003,43,10:9
4高压注水控制坚硬顶板显示文摘高压注水强制垮落法是有希望解决坚硬顶板冒落问题的方法之一。坚硬顶板处理方法已在中国、澳大利亚和其它国家试用过。这种高压注水压裂顶板技术已在印度东南煤炭公司恰恰矿的西10采区试用过。本文论述了在井下上覆岩中回收煤柱中11个深斜孔采用高压注水实验的发现。A.巴内吉 A.K.雷 G.辛格 K.P.亚达瓦 申爱民 2004中国煤炭2004,30,12:8
5“外省来的年轻人”显示文摘莱昂内尔·特里林在他为詹姆斯的长篇小说《卡萨玛西玛公主》(1886)写的导言中,为了替小说的男主人公建立文学上的血统关系,援引了一连串长篇小说,它们贯穿整个十九世纪以至二十世纪初期。他把这些小说的男主人公称做“外省来的年轻人”。这些小说包括司汤达的《红与黑》(1830)、巴尔扎克的《高老头》(1835)、《幻灭》(1837—1843)、狄更斯的《远大前程》(1861)、福楼拜的《情感教育》A.K.羌达 杨绮 1986文艺理论研究1986,,4:7
6Ti based biomaterials, the ultimate choice for orthopaedic implants – A review显示文摘M. Geetha A.K. Singh R. Asokamani A.K. Gogia 2008Progress in Materials Science2008,,3:6
7虚拟耳镜检查术前评价慢性化脓性中耳炎病人的听骨链是否有价值?HRCT和虚拟耳镜检查与外科手术所见的对比显示文摘本研究的目的是评价虚拟耳镜检查及听小骨3D重建对慢性化脓性中耳炎病人听小骨术前评价中的作用。对33例伴有传导性耳聋(气-骨差距〉35dB)的慢性化脓性中耳炎病人进行前瞻性研究。所有病人均行多层螺旋CT横断面检查。利用横断面CT数据进行多平面2D重组、虚拟耳镜检查(VO)及3D重组。2名放射科医师根据3点评分系统分别对这两种技术所得影像中听骨链的不同部分进行判读,并与外科所见进行对照。这两种成像技术对听骨较大部分结构的评价具有相似的准确性。A.K. Pandey J.R. Bapuraj A.K. Gupta N. Khandelwal 乔辉(译) 刘筠(校) 2009国际医学放射学杂志2009,32,4:6
8论洗钱犯罪的控制和预防显示文摘我是专门研究金融犯罪和贪污贿赂犯罪的,今天我想谈谈这些犯罪中的一个热点问题:“洗钱犯罪的控制和预防”。 一、洗钱犯罪的特点及其危害 所谓洗钱(Money Laundering)犯罪,是指“将脏钱洗净”或“将钱漂白”,使犯罪所得的收益得以隐瞒和伪装,使之具有表面的合法性,从而逃避法律制裁。它与传统犯罪形式相比,可以说是一种新型的企业型犯罪,特别是随着现代高科技的发展,洗钱犯罪亦日趋纷繁复杂,主要体现在以下几方面: 1.它是一种“精英犯罪”(Crime by Elite)或称“重要人物的犯罪(Significant Person’sCrime),虽然。Barry A.K.利德 王文华 1999中外法学1999,11,5:6
9Carriage of the PNPLA3 rs738409 C >G polymorphism confers an increased risk of non-alcoholic fatty liver disease associated hepatocellular carcinoma显示文摘Y.-L. Liu G.L. Patman J.B.S. Leathart A.-C. Piguet A.D. Burt J.-F. Dufour C.P. Day A.K. Daly H.L. Reeves Q.M. Anstee 2014Journal of Hepatology2014,,:5
10Elastography for the diagnosis of severity of fibrosis in chronic liver disease: A meta-analysis of diagnostic accuracy显示文摘E.A. Tsochatzis K.S. Gurusamy S. Ntaoula E. Cholongitas B.R. Davidson A.K. Burroughs 2010Journal of Hepatology2010,,4:5
11Insecticidal, repellent and oviposition-deterrent activity of selected essential oils against Anopheles stephensi , Aedes aegypti and Culex quinquefasciatus显示文摘Veena Prajapati A.K. Tripathi K.K. Aggarwal S.P.S. Khanuja 2005Bioresource Technology2005,,16:4
12Tensile and Impact Properties of Shielded Metal Arc Welded AISI 409M Ferritic Stainless Steel Joints显示文摘The present study is concerned with the effect of filler metals such as austenitic stainless steel, ferritic stainless steel and duplex stainless steel on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade. Rolled plates of 4 mm thickness were used as the base material for preparing single pass butt welded joints. Tensile and impact properties, microhardness, microstructure and fracture surface morphology of the joints fabricated by austenitic stainless steel, ferritic stainless steel and duplex stainless steel filler metals were evaluated and the results were reported. From this investigation, it is found that the joints fabricated by duplex stainless steel filler metal showed higher tensile strength and hardness compared to the joints fabricated by austenitic and ferritic stainless steel filler metals. Joints fabricated by austenitic stainless steel filler metal exhibited higher ductility and impact toughness compared with the joints fabricated by ferritic stainless steel and duplex stainless steel filler metals.K. Shanmugam A.K. Lakshminarayanan V. Balasubramanian 2009Journal of Materials Science & Technology2009,25,2:4
13International Autoimmune Hepatitis Group Report: review of criteria for diagnosis of autoimmune hepatitis显示文摘F. Alvarez P.A. Berg F.B. Bianchi L. Bianchi A.K. Burroughs E.L. Cancado R.W. Chapman W.G.E. Cooksley A.J. Czaja V.J. Desmet P.T. Donaldson A.L.W.F. Eddleston L. Fainboim J. Heathcote J.-C. Homberg J.H. Hoofnagle S. Kakumu E.L. Krawitt I.R. Mackay R.N.M. 1999Journal of Hepatology1999,,5:4
14先天性膈疝病人MR相对胎儿肺体积:存活率和体外膜人工氧合法的必需性显示文摘目的回顾性评估利用MRI测量绝对胎儿肺体积(fetallung volume,FLV)以及利用7个公式计算相对FLV以预测先天性膈疝(CDH)新生儿的存活率并判断患儿是否需要胎儿体外膜人工氧合(ECMO)治疗的准确性。方法此项回顾性研究得到伦理委员会的批准。并且得到本研究中所有母亲的知情同意书。对68例患CDH的23-29周胎儿进行了MRI检查以测量FLV。利用文献报道的7个公式的生物计量参数计算相对FLV,表示为肺预测体积的百分比。K.A. Büsing A.K. Kilian T. Schaible C. Endler R. Schaffelder K.W.Neff 叶锦棠(译) 唐光健(校) 2008国际医学放射学杂志2008,31,5:4
15Biodegradation aspects of Polycyclic Aromatic Hydrocarbons (PAHs): A review显示文摘A.K. Haritash C.P. Kaushik 2009Journal of Hazardous Materials2009,,1:3
16An adaptive finite element procedure for crack propagation analysis显示文摘This paper presents the adaptive mesh finite element estimation method for analyzing 2D linear elastic fracture problems. The mesh is generated by the advancing front method and the norm stress error is taken as a posteriori error estimator for the h-type adaptive refinement. The stress intensity factors are estimated by a displacement extrapolation technique. The near crack tip displacements used are obtained from specific nodes of natural six-noded quarter-point elements which are generated around the crack tip defined by the user. The crack growth and its direction are determined by the calculated stress intensity factors. The maximum circumference theory is used for the latter. In evaluating the accuracy of the estimated stress intensity factors, four cases are tested consisting of compact tension specimen, three-point bending specimen, central cracked plate and double edge notched plate. These were carried out and compared to the results from other studies. The crack trajectories of these specimen tests are also illustrated.ALSHOAIBI Abdulnaser M. HADI M.S.A. ARIFFIN A.K. 2007Journal of Zhejiang University-Science A(Applied Physics & Engineering)2007,8,2:3
17Magnetotelluric investigation of lithospheric electrical structure beneath the Dharwar Craton in south India:Evidence for mantle suture and plume-continental interaction显示文摘Broad-band and long period magnetotelluric measurements made at 63 locations along -500 km long Chikmagalur-Kavali profile,that cut across the Dharwar craton (DC) and Eastern Ghat Mobile Belt (EGMB) in south India,is modelled to examine the lithosphere architecture of the cratonic domain and define tectonic boundaries.The 2-D resistivity model shows moderately conductive features that intersperse a highly resistive background of crystalline rocks and spatially connect to the exposed schist belts or granitic intrusions in the DC.These features are therefore interpreted as images of fossil pathways of the volcanic emplacements associated with the greenstone belt and granite suite formation exposed in the region.A near vertical conductive feature in the upper mantle under the Chitradurga Shear Zone represents the Archean suture between the western and eastern blocks of DC.Although thick (-200 km) cratonic (highly resistive) lithosphere is preserved,significant part of the cratonic lithosphere below the western DC is modified due to plume-continental lithosphere interactions during the CretaceouseTertiary period.A west-verging moderately conductive feature imaged beneath EGMB lithosphere is interpreted as the remnant of the Proterozoic collision process between the Indian land mass and East Antarctica.Thin (-120 km) lithosphere is seen below the EGMB,which form the exterior margin of the India shield subsequent to its separation from East Antarctica through rifting and opening of the Indian Ocean in the Cretaceous.D. Malleswari K. Veeraswamy K.K. Abdul Azeez A.K. Gupta Narendra Babu Prasanta K. Patro T. Harinarayana 2019Geoscience Frontiers2019,10,5:3
18Effects of Bone Cement Volume and Distribution on Vertebral Stiffness After Vertebroplasty显示文摘Michael A.K. Liebschner William S. Rosenberg Tony M. Keaveny 2001Spine2001,,14:3
19Ti based biomaterials, the ultimate choice for orthopaedic implants – A review显示文摘M. Geetha A.K. Singh R. Asokamani A.K. Gogia 2008Progress in Materials Science2008,,3:3
20Seasonal Inhomogeneity of Soot Particles over the Central Indo-Gangetic Plains,India:Influence of Meteorology显示文摘Black carbon(BC) particles play a unique and important role in earth's climate system.BC was measured(in-situ) in the central part of the Indo-Gangetic Plains(IGP) at Varanasi,which is a highly populated and polluted region due to its topography and extensive emission sources.The annual mean BC mass concentration was 8.92 ± 7.0 μg m^(-3),with 34%of samples exceeding the average value.Seasonally,BC was highest during the post-monsoon and winter periods(approximately 18 μg m^(-3)) and lower in the premonsoon/monsoon seasons(approximately 6 μg m^(-3)).The highest frequency(approximately 46%) observed for BC mass was in the interval from 5 to 10 μg m^(-3).However,during the post-monsoon season,the most common values(approximately 23%) were between 20 and 25 μg m^(-3).The nighttime concentrations of BC were approximately twice as much as the daytime values because of lower boundary layer heights at nighttime.The Angstrom exponent was significantly positively correlated(0.55) with ground-level BC concentrations,indicating the impact of BC on the columnar aerosol properties.The estimated mean absorption Angstrom exponent was 1.02 ± 0.08 μg m^(-3),indicating that the major source of BC was from fossil fuel combustion.Significant negative correlations between BC mass and meteorological parameters indicate a pronounced effect of atmospheric dynamics on the BC mass in this region.The highest mean BC mass concentration(18.1 ± 6.9 μg m^(-3)) as a function of wind speed was under calm wind conditions(38%of the time).SINGH B.P. TIWARI S. HOPKE Philip K. SINGH R.S. BISHT D.S. SRIVASTAVA A.K. SINGH R.K. DUMKA U.C. SINGH A.K. RAI B.N. SRIVASTAVA Manoj K. 2015Journal of Meteorological Research2015,29,6:3
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