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| 1 | A statistical model for porous structure of rocks显示文摘The geometric features and the distribution properties of pores in rocks were in- vestigated by means of CT scanning tests of sandstones. The centroidal coordi- nates of pores, the statistic characterristics of pore distance, quantity, size and their probability density functions were formulated in this paper. The Monte Carlo method and the random number generating algorithm were employed to generate two series of random numbers with the desired statistic characteristics and prob- ability density functions upon which the random distribution of pore position, dis- tance and quantity were determined. A three-dimensional porous structural model of sandstone was constructed based on the FLAC3D program and the information of the pore position and distribution that the series of random numbers defined. On the basis of modelling, the Brazil split tests of rock discs were carried out to ex- amine the stress distribution, the pattern of element failure and the inosculation of failed elements. The simulation indicated that the proposed model was consistent with the realistic porous structure of rock in terms of their statistic properties of pores and geometric similarity. The built-up model disclosed the influence of pores on the stress distribution, failure mode of material elements and the inosculation of failed elements. | JU Yang1,2, YANG YongMing1, SONG ZhenDuo3 & XU WenJing4 1 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining & Technology, Beijing 100083, China 2 Department of Mechanical and Manufacturing Engineering, The University of Calgary, 2500 University Drive NW Calgary, AB T2N 1N4, Canada 3 China National Coal Mining Equipment Co. Ltd, Beijing 100011, China 4 Department of Materials and Metallurgy, The University of Utah, Salt Lake City, Utah 84112, USA | 2008 | Science China(Technological Sciences)2008，51，11： | 21 |
| 2 | The environmental signal of an early Holocene pollen record from the Shiyang River basin lake sediments, NW China显示文摘Pollen analyses of 85 samples from the San-jiaocheng section well along the margin of a palaeolake at the end of the Shiyang River, NW China, show that Picea and Sabina dominate the pollen assemblage. Together they reach as high as 40%-60%, with the percentage of Picea varying inversely with that of Sabina. Similar results were obtained from another section in the Shiyang River drainage. Using modern ecological habitat relationship analogues, pol-len transport characteristics, and the overall pollen assem-blage, we propose that both Picea and Sabina pollen were transported by the river from the mountains at the upper reaches of the Shiyang River, and that the assemblage is more indicative of changes in upland vegetation than of local conditions near the section. This interpretation is supported by pollen data derived from surface samples, water samples, and riverbed samples. Using a moisture indicator (the Picea to Sabina ratio) and calculated pollen concentrations, we identify a series of | ZHU Yan, CHEN Fahu & Madsen DavidCollege of geography and Environment, Northwest Normal University, Lanzhou 730070, China National Key Laboratory of West Environmental System, Lanzhou University, Lanzhou 730000, China Utah Geological Surv | 2002 | Chinese Science Bulletin2002，47，4： | 10 |
| 3 | Preliminary examination of electrochemical and spectroscopic features of trithiocarbonate collectors for sulfide mineral flotation显示文摘The redox potentials of xanthate/dixanthogen (dithiocarbonate/di dithiocarbonate, DTC/(DTC) 2) and trithiocarbonate/di trithiocarbonate (TTC/(TTC) 2) couples have been measured for the potassium salts. The spectroscopic characteristics of these sulfide mineral collectors were determined by FTIR and UV analysis. Electrochemically controlled contact angle measurements at a pyrite surface provided the basis to analyze the effect of the functional group ( O CS 2 versus S CS 2) on the hydrophobic surface state. Results from this preliminary examination are discussed with respect to the nature of collector adsorption and the pyrite flotation response. | R. Du Plessis 1, J.D. Miller 1, J.C.Davidtz 2 1. Department of Metallurgical Engineering, University of Utah, Salt Lake City, Utah 84102, USA 2. Department of Materials Science and Metallurgical Engineering, University of Pretoria, Pretoria 0002 | 2000 | 中国有色金属学会会刊:英文版2000，10，S1： | 9 |
| 4 | Remote sensing and geographic information systems in the spatial temporal dynamics modeling of infectious diseases显示文摘Similar to species immigration or exotic species invasion,infectious disease transmis-sion is strengthened due to the globalization of human activities. Using schistosomiasis as an exam-ple,we propose a conceptual model simulating the spatio-temporal dynamics of infectious diseases. We base the model on the knowledge of the interrelationship among the source,media,and the hosts of the disease. With the endemics data of schistosomiasis in Xichang,China,we demonstrate that the conceptual model is feasible; we introduce how remote sensing and geographic information systems techniques can be used in support of spatio-temporal modeling; we compare the different effects caused to the entire population when selecting different groups of people for schistosomiasis control. Our work illustrates the importance of such a modeling tool in supporting spatial decisions. Our mod-eling method can be directly applied to such infectious diseases as the plague,lyme disease,and hemorrhagic fever with renal syndrome. The application of remote sensing and geographic informa-tion systems can shed light on the modeling of other infectious disease and invasive species studies. | GONG Peng 1,XU Bing 2 & LIANG Song 1、3 1. State Key Laboratory of Remote Sensing Science,Jointly Sponsored by the Institute of Remote Sensing Applications,Chi-nese Academy of Sciences and Beijing Normal University,Box 9718,Beijing 100101,China 2. Department of Geography,University of Utah,Salt Lake City,UT 84112,USA 3. School of Public Health,University of California,Berkeley,CA 94720,USA | 2006 | Science China(Life Sciences)2006，49，6： | 5 |
| 5 | 增加前肢主动运动对去势大鼠桡、尺骨骨量的影响显示文摘目的 :建立雄性大鼠前肢主动运动模型并观察其对去势雄性大鼠尺、桡骨骨量减少的影响。方法 :建立前肢主动运动取食动物模型并去势以观察尺骨、桡骨部位骨量的影响。6月龄大鼠按体重随机分为 5组。(1 )对照组 ;(2 )假手术组 +正常高度笼 ;(3)双侧睾丸切除组 +正常高度笼 ;(4)假手术组 +模型组 ;(5)双侧睾丸切除组 +模型组。结果 :模型组大鼠的尺、桡骨骨皮质都有显著增加。结论 :大鼠前脚趾掌主动运动对远端尺骨和远端桡骨有良好的作用 ,可有效地防止雄性去势大鼠相应部位的骨量丢失。 | 刘浩宇 姚蔚 WebsterS.S.Jee Rebecca SetterbergRadiobiology Division University of Utah Salt Lake City Utah USA | 2000 | 广东医学院学报2000，18，3： | 2 |
| 6 | Effects of lead,cadmium,mercury chlorides and aquatic environmental samples on the growth of Escherichia coli显示文摘In this paper it was reported that PbCl_2 , CdCl_2 , HgCl_2, and aquatic environmental samples con-taining Al, Cd, Cu, Pb, Sr, Zn and other heavy metal ions as well as organic chemicals suppressed thegrowth of E. coli only at higher exposed concentrations | Xu Chao(Department of Environmental Science and Engineering , Nanjing University , Nanjing 210093 , China)Yuan Jing(Department of Plants , Soils , and Biometeorology , Utah State University , Logan , Utah 84322-4820, U. S. A)Xu Heping(Environmental Monito | 1995 | Journal of Environmental Sciences1995，7，4： | 2 |
| 7 | Supply-chain pricing-a new perspective on pricing in industrial markets 显示文摘 | MARKUS V UTAH | 2006 | Industrial Marketing Management2006，，35： | 1 |
| 8 | Catechins:natural freeradical scavengers against ochratoxin A-induced cell damage in a pig kidney cell line (LLC-PK1)显示文摘 | Costa S Utah A Cervellati R | | 0，，10： | 1 |
| 9 | A collection of ordered tetranucleotide-repeat markers from the human genome显示文摘 | The Utah Marker Development Group | 1995 | Am J Hum Genet1995，57，3： | 1 |
| 10 | Preparation of Some Cationic Starches as Flocculants for Water显示文摘 | Henny A Ellis Stanley I Utah Abiol A Ogunrinde | 1982 | Water Research1982，16，9： | 1 |
| 11 | Wave-equation traveltime + waveform inversion显示文摘 | Luo Yi Schuster G T University of Utah | 1990 | Expanded Abstracts of 60^th Annual International SECT Meeting1990，，： | 1 |
| 12 | A new method for the determination of flow directions and upslope areas in grid digital elevation models显示文摘 | David G Tarboton Utah Water Research Laboratory Utah State University Logan | 1997 | Water Resources Research1997，33，2： | 1 |
| 13 | A spectral interpretation for the explicit formula in the theory of prime numbers显示文摘A spectral interpretation for the poles and zeros of the L-function of algebraic number fields is given by Meyer. As Meyer works with Schwartz spaces which are not Hilbert spaces, the information on the location of zeros of the L-function is lost. In 1999, A. Connes gave a spectral interpretation for the critical zeros the Riemann zeta function. He works with Hilbert spaces. In this paper, we show that a variant of Connes’ trace formula is essentially equal to the explicit formula of A. Weil. | LI Xian-Jin Department of Mathematics, Brigham Young University, Provo, Utah 84602, USA | 2010 | Science China Mathematics2010，53，3： | 1 |
| 14 | A collection of ordered tetranucleotide-repeat markers from the human genome 显示文摘 | Utah Marker Development Group | 1995 | Am J Hum Genet1995，57，3： | 1 |
| 15 | A collettion of ordered tetranucleotide-repeat markers from the human genome显示文摘 | The Utah Marker Development Group | 1995 | Am J Hum Genet1995，57，3： | 1 |
| 16 | Outbreak of hepatitis B virus infections associated with assisted monitoring of blood glu- cose in an assisted living facility -Virginia, 2010显示文摘 | BENDER T J WISE M E UTAH O | 2012 | PLoS One2012，7，50： | 1 |
| 17 | The Concept of Decadence in Fin de Siecle English Literature显示文摘无论是在西方还是东方,提起颓废(decadence)一词,人们首先想到的便是'为艺术而艺术'的口号,以及王尔德(Oscard Wilde)和葛悌埃(Theophi le Gaut ier)等人的耸人听闻的作品。本文则从西方传统文论出发,探讨颓废这一文学概念的渊源及发展。作者认为,尽管颓废文学的某些论点和口号貌似激进,实际上它滥觞于西方传统中有关文质关系的讨论,是对传统文学观念的一个挑战和修正。 | WU Fusheng University of Utah | 2010 | Comparative Literature:East & West2010，，2： | 0 |
| 18 | Dispersion of ultrafine alumina in modifier solution ——the role of polar interfacial interaction显示文摘Dispersion of ultrafine alumina suspension is examined by using particle size analyzer. The zeta potential and contact angle measurements were used to discuss the electrokinetic behavior and surface wettability of alumina in modifier solution, and to calculate the electrostatic interaction forces and interfacial interaction forces between alumina particles. The aggregation of ultrafine alumina occurs near its PZC. Addition of modifier increases the zeta potential of alumina and its surface hydrophilicity, resulting in increase of electrostatic and hydration repulsion. It makes the suspension of ultrafine alumina completely dispersed. The average particle size of the suspension is decreased from 1.73 μm in absence of modifier to 0.8 μm in the presence of tripolyphosphate. According to polar interfacial interaction approach, the hydration forces responsible for the stability of alumina suspension in the presence of modifier have also been obtained. The extended DLVO theory is successful to describe the dispersion behavior of ultrafine alumina in modifier solution. | HU Yue hua 1,QIU Guan zhou 1,J.D.Miller 2 (1.Department of Mineral Engineering, Central South University, Changsha 410083, China 2.Department of Metallurgical Engineering, University of Utah, 412 WBB, Salt Lake City, UT 84112, USA) | 2001 | Journal of Central South University of Technology2001，8，1： | 0 |
| 19 | Fuzzy Set Identification of Bone Marrow Cells显示文摘Using rubricytes and lymphocytes as examples,this paper presents a fuzzy set theory and method to identify human bone marrow hematopoiesis system cells (BMCs).On the basis of the Cauchy’s distribution function,this paper sets up a series of membership function formulae of the BMC feature fuzzy subsets,general identification formulae of fuzzy sets for the BMCs,as well as identification formulae of fuzzy sets for rubricytes and lymphocytes.These formulae will assist with the quantitation of unknown cells compared to standard cells. | Wang Reikang Nuttall Kern L. Fenn JoAnn P. Wittwer Carl T. (School of Medicine, University of Utah, USA) | 1999 | Advances in Manufacturing1999，，1： | 0 |
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