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Characteristics of Nanoparticles-Based Chemical Sensors

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Materials Sciences and Applications 2012年第7期3卷 448-452页

作者： Jason Stephens A. K. Batra James r. currie Department of Physics (Materials Science Group) College of Engineering Technology and Physical Sciences Alabama A&M University Normal Alabama 35762 U.S.A NASA George C. Marshall Space Flight Center Huntsville Alabama 35812 U.S.A.

Semiconducting nanoparticle tin oxide-based sensors have been prepared with a pressure load of 4, 6, 8, 10 tons and reinforced with carbon nanofibers (CNF) in SnO2 matrix. The SnO2/CNF sensor’s sensitivity for ethyl alcohol has in-creased by a factor of two, in compared with that of pure SnO2 8-ton pressed sensor with lower response time. These results open the way towards further optimized lower cost CNF nanocomposite sensors as compared with expensive tin oxide/carbon nanotubes sensors.

关键词： Chemical Sensors Tin Oxide Nano-composites Carbon Nanofiber

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微波管中的噪声现象

真空电子技术 1963年第6期 9-18页

作者： M.r.currie 李际霖

Ⅰ、引言在最近几年中,低噪声微波管方面已经出现了许多重要进展。降低电子注噪声新方法的发现,引起了噪声系数在S波段小于3分贝和在X波段小于4分贝的行波管的发展。最近的分析和实验使电子注噪声现象的知识已显著地丰富起来。通过快波... 详细信息

Ⅰ、引言在最近几年中,低噪声微波管方面已经出现了许多重要进展。降低电子注噪声新方法的发现,引起了噪声系数在S波段小于3分贝和在X波段小于4分贝的行波管的发展。最近的分析和实验使电子注噪声现象的知识已显著地丰富起来。通过快波的应用,消除了慢波放大器固有噪声限制的新型放大器已被创制和研究

关键词：电子注放大器慢波电子设备电子枪噪音噪声超高频电子管微波管

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90年代世界蚕丝的产供销

中国蚕业 1992年第2期 63-65页

作者： r.currie 叶元柏

当今世界产丝国有多少?或许不尽为人知,真实数目是50余国。产丝量最少者如法国,年产生丝仅400kg左右;最多者为中国年产40000吨生丝。论及蚕丝在纤维市场上的地位,就其量而言只占世界纤维总产量的0.17％(但就其价值而言,则是另一码事,1k... 详细信息

当今世界产丝国有多少?或许不尽为人知,真实数目是50余国。产丝量最少者如法国,年产生丝仅400kg左右;最多者为中国年产40000吨生丝。论及蚕丝在纤维市场上的地位,就其量而言只占世界纤维总产量的0.17％(但就其价值而言,则是另一码事,1kg标准等级生丝价为45美元)。

关键词：生丝巴西出口进口美元南美洲本位币养蚕业纺织工业丝绸工业蚕丝蚕丝纤维

Lignocellulose pretreatment in fungus-cultivating termite

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Science Foundation in China 2017年第3期25卷 23-23页

作者： Li Hongjie （李鸿杰) Mo Jianchu （莫建初) Cameron r currie John ralph Zhejiang University China DOE Great Lakes Bioenergy research Center University of Wisconsin Madison USA

Subject Code:C16With the financial support by the National Natural Science Foundation of China,an international collaborative study led by *** Hongjie(李鸿杰)and *** Jianchu(莫建初)from Zhejiang University,China and *... 详细信息

关键词： Lignocellulose pretreatment in fungus-cultivating termite

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美国音乐学的目的与终结

音乐研究 2024年第5期 154-160页

作者： [美]詹姆斯·柯里邓佳(译) 季星妤(译) 邹彦(校) 刘彦玲(校) 洪丁(校) 美国纽约州立大学水牛城分校音乐系中国音乐学院北京大学艺术学院上海音乐学院

适逢苏州深秋,在2019年第五届国际音乐学学会东亚分会双年会(IMSEA)上,我曾直言不讳地抛出一个疑问:“音乐学”在美国是否已面临终结?①若不是,那么它当下正遭际何种挑战?欲解开此问题,需从一个更为宏观的视角予以思考。于是我向彼时在... 详细信息

适逢苏州深秋,在2019年第五届国际音乐学学会东亚分会双年会(IMSEA)上,我曾直言不讳地抛出一个疑问:“音乐学”在美国是否已面临终结?①若不是,那么它当下正遭际何种挑战?欲解开此问题,需从一个更为宏观的视角予以思考。于是我向彼时在场的听众继续发问:“国际音乐学”的确切内涵究竟为何?作为音乐学家,我试图针对以上追问,从全球化的经济问题、各式文化下迥异的智识思考模式以及全球高等教育竞争局面等维度出发,为学术界、国际各音乐学学会未来的发展及对“国际音乐学”的内涵提供一些思考与建议。接下来将依序针对上述维度展开论述,最终将其与美国音乐学当前所肩负的使命与面临的挑战相关联。

关键词：国际音乐学学会高等教育竞争思考模式音乐学家思考与建议全球化

An Unusual, Three-Dimensionally Preserved, Large Hadrosauriform Pes Track from "Mid"-Cretaceous Jiaguan Formation of Chongqing, China

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Acta Geologica Sinica(English Edition) 2012年第2期86卷 304-312页

作者： XING Lida Phil r.BELL JeraldD.HArrIS Philip J.currie Department of Biological Sciences University of Alberta11455 Saskatchewan DriveEdmontonAlberta T6G 2E9Canada Key Laboratory of Evolutionary Systematics of Vertebrates Chinese Academy of SciencesPO Box 643100044 BeijingChina Pipestone Creek Dinosaur Initiative ClairmontAlberta TOH OWOCanada. Physical Sciences Department Dixie State College225 South 700 EastSt.GeorgeUtah 84770USA

Three-dimensional tracks provide unique insights into the locomotor mechanics of their track makers. An isolated, large hadrosauriform print attributable to Caririchnium lotus from the ＂mid＂-Cretaceous Lotus track site （Jiaguan Formation） in China permits reconstruction of the footfall, weight-bearing, and kick-off phases of the step cycle. Large-scale modifications of the pes during the step cycle indicate C. lotus trackmakers were capable of locomotory modifications in response to substrate consistency beyond the ＂expected＂ shift between bipedal and quadrupedal postures. An unusual curvature to the trace of one of the outer digits indicates substantial transverse mobility. The remaining digits demonstrate lesser degrees of transverse movement accompanied by extension of the digits during footfall. The absence of overprinted scale-scratch marks and toe drags are consistent with a vertical kick-off of the pes and concomitant flexion of the digits. This track suggests that pedal mobility in C. lotus track makers was greater than previously suspected and has implications for reconstructions of hadrosauriform locomotion.

关键词： hadrosauriform locomotion footprints Cretaceous step cycle

Surface Expressions of rayleigh-Taylor Instability in Continental Interiors

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Acta Geologica Sinica(English Edition) 2014年第3期88卷 1004-1016页

作者： WANG Huilin Claire A currie ZHAN Yan University of Alberta State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration

Two-dimensional thermal-mechanical numerical models show that rayleigh-Taylor-type （rT） gravitational removal of high-density lithosphere may produce significant surface deformation （vertical deflection 〉1000 m） in the interior of a continental plate.A reasonable range of crustal strengths and thicknesses,representing a variation from a stable continental interior to a hot orogen with a thick crust,is examined to study crustal deformation and the surface deflection in response to an rT *** general,three types of surface deflection are observed during the rT drip event：（1） subsidence and negative topography; （2） uplift and positive topography; （3） subsidence followed by uplift and inverted *** key factor that determines the surface expression is the crustal *** with a thin crust mainly show subsidence and develop a *** the thick crust models,surface expressions are more variable,depending on the crustal strength and depth of highdensity *** weak crust and a deep high-density anomaly,the rT drip is decoupled from the overlying crust,and the surface exhibits uplift or little deflection,as the rT drip induces contraction and thickening of the overlying *** contrast,with a strong crust and shallow anomaly,the surface is more strongly coupled with the drip and undergoes subsidence,followed by uplift.

关键词： intraplate tectonics rayleigh-Taylor instabilities surface expression crustal flow

Dragon Tails:Convergent Caudal Morphology in Winged Archosaurs

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Acta Geologica Sinica(English Edition) 2012年第6期86卷 1402-1412页

作者： W.Scott PErSONS IV Philip J.currie Department of Biological Sciences University of Alberta Department of Biological Sciences CW 405 Biological Sciences Bldg.University of Alberta

In the tails of dromaeosaurid dinosaurs and rhamphorhynchid pterosaurs, elongate osteological rods extend anteriorly from the chevrons and the prezygapophyses. These caudal rods are positioned in parallel and are stacked dorsoventrally. The fully articulated and three-dimensionally preserved caudal series of some dromaeosaurid specimens show that individually these caudal rods were flexible, not rigid as previously thought. However, examination of the arrangement of the caudal rods in cross-section indicates that the combined effect of multiple caudal rods did provide substantial rigidity in the dorsoventral, but not in the lateral, plane. The results of digital muscle reconstructions confirm that dromaeosaurids and rhamphorhynchids also shared greatly reduced caudofemoral muscles in the anterior tail region. The striking similarities between the tails of dromaeosaurids and rhamphorhynchids suggest that both evolved under similar behavioral and biomechanical pressures. Combined with recent discoveries of primitive deinonychosaurs that phylogenetically bracket the evolution of dromaeosaurid caudal rods between two arboreal gliding/flying forms, these results are evidence that the unique caudal morphologies of dromaeosaurids and rhamphorhynchids were both adaptations for an aerial lifestyle.

关键词： caudal musculature convergent evolution dinosaurs dromaeosaurids functionalmorphology pterosaurs rhamphorhynchids

Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the Lower Jurassic strata of the Lufeng Basin, China

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Chinese Science Bulletin 2013年第16期58卷 1931-1935页

作者： XING LiDa BELL Phil r rOTHSCHILD Bruce M rAN Hao ZHANG JianPing DONG ZhiMing ZHANG Wei currie Philip J Department of Biological Sciences University of Alberta School of the Earth Sciences and resources China University of Geosciences Pipestone Creek Dinosaur Initiative Division of Vertebrate Paleontology Natural History Museum and Biodiversity Research Institute University of Kansas Key Laboratory of Ecology of rare and Endangered Species and Environmental Protection (Guangxi Normal University) Ministry of Education Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Department of Computer Engineering Chengdu Electromechanical College

Pathological or traumatic loss of teeth often results in the resorption and remodeling of the affected alveoli in mammals. However, instances of alveolar remodeling in reptiles are rare. A remodeled alveolus in the maxilla of the Chinese theropod Sinosaurus (Lower Jurassic Lower Lufeng Formation) is the first confirmed example of such dental pathology in a dinosaur. Given the known relationship between feeding behavior and tooth damage in theropods (teeth with spalled enamel, tooth crowns embedded in bone) and the absence of dentary, maxillary, and premaxillary osteomyelitis, traumatic loss of a tooth is most likely the cause of alveolar remodeling. Based on the extent of remodeling, the injury and subsequent tooth loss were non-fatal in this individual.

关键词：下侏罗统兽脚类牙齿肺泡中国恐龙禄丰盆地地层