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| 1 | SCATTERING FAR FIELD SOLUTION OF SH-WAVE BY MOVABLE RIGID CYLINDRICAL INTERFACE INCLUSION显示文摘The Green’s function is used to solve the scattering far field solution of SH-wave by a mov-able rigid cylindrical interface inclusion in a linear elastic body.First,a suitable Green’s function is devel-oped,which is the fundamental displacement solution of an elastic half space with a movable rigid half-cylin-drical inclusion impacted by out-of-plane harmonic line source loaded at any point of its horizontal surface.By using the Green’s function,a series of Fredholm integral equations of the first kind which determine thescattering far field can be set up.Then the paper gives the expressions on the far field including the displace-ment mode of scattering wave and the solution of scattering cross-section.Finally,some examples and nu-merical results are discussed to analyze the influence of the combination of different media parameters on theanswer of far field. | Yang Zailin Liu Diankui Shi Wenpu | 2002 | Acta Mechanica Solida Sinica2002，15，3： | 12 |
| 2 | Controlling Effects of Tight Reservoir Micropore Structures on Seepage Ability: A Case Study of the Upper Paleozoic of the Eastern Ordos Basin, China显示文摘In this study, the types of micropores in a reservoir are analyzed using casting thin section(CTS) observation and scanning electron microscopy(SEM) experiments. The high-pressure mercury injection(HPMI) and constant-rate mercury injection(CRMI) experiments are performed to study the micropore structure of the reservoir. Nuclear magnetic resonance(NMR), gas-water relative seepage, and gas-water two-phase displacement studies are performed to examine the seepage ability and parameters of the reservoir, and further analyses are done to confirm the controlling effects of reservoir micropore structures on seepage ability. The experimental results show that Benxi, Taiyuan, Shanxi, and Shihezi formations in the study area are typical ultra-low porosity and ultra-low permeability reservoirs. Owing to compaction and later diagenetic transformation, they contain few primary pores. Secondary pores are the main pore types of reservoirs in the study area. Six main types of secondary pores are: intergranular dissolved pores, intragranular dissolved pores, lithic dissolved pores, intercrystalline dissolved pores, micropores, and microfracture. The results show that reservoirs with small pore-throat radius, medium displacement pressure, and large differences in pore-throat structures are present in the study area. The four types of micropore structures observed are: lower displacement pressure and fine pores with medium-fine throats, low displacement pressure and fine micropores with fine throats, medium displacement pressure and micropores with micro-fine throats, and high displacement pressure and micropores with micro throats. The micropore structure is complex, and the reservoir seepage ability is poor in the study areas. The movable fluid saturation, range of the gas-water two-phase seepage zone, and displacement types are the three parameters that well represent the reservoir seepage ability. According to the characteristic parameters of microscopic pore structure and seepage characteristics, the reservoirs in the study area are classified into four types(Ⅰ–Ⅳ), and types Ⅰ, Ⅱ, and Ⅲ are the main types observed. From type Ⅰ to type Ⅳ, the displacement pressure increases, and the movable fluid saturation and gas-water two-phase seepage zone decrease, and the displacement type changes from the reticulation-uniform displacement to dendritic and snake like. | YANG Bo QU Hongjun PU Renhai TIAN Xiahe YANG Huan DONG Wenwu CHEN Yahui | 2020 | Acta Geologica Sinica(English Edition)2020，94，2： | 3 |
| 3 | TWO-DIMENSIONAL MATHEMATICAL MODEL FOR STUDYING EROSION AND SEDIMENTATION OF A WANDERING STRETCH IN THE LOWER YELLOW RIVER显示文摘TWO-DIMENSIONALMATHEMATICALMODELFORSTUDYINGEROSIONANDSEDIMENTATIONOFAWANDERINGSTRETCHINTHELOWERYELLOWRIVER￥ZHANGShiqir(Senior... | ZHANG Shiqir( Institute of Water Conservancy and Hydroelectric Power Research, PO Box 366Beijing, China) | 1994 | International Journal of Sediment Research1994，9，3： | 1 |
| 4 | Crude oil mobility and its controlling factors in tight sand reservoirs in northern Songliao Basin, East China显示文摘Taking tight oil in Gaotaizi and Fuyu oil layers of the Upper Cretaceous Qingshankou Formation in northern Songliao Basin as an example, based on analyses of nuclear magnetic resonance and high pressure mercury injection, experiment methods of supercritical carbon dioxide displacement and extraction are firstly employed to quantify crude oil mobility in tight sand reservoirs with different lithologies and oil contents. The results show that, under the conditions of simulating the Cretaceous Qingshankou Formation in the northern Songliao Basin at a temperature of 76-89 °C and a pressure of 35-42 MPa, the lower limit of the porosity of the movable oil is4.4%, and the lower limit of the permeability is 0.015′10-3 mm2. The lower limit of the average pore throat radius is 21 nm. On this basis,a classification standard for three types of tight sand reservoirs is proposed. Type I reservoirs are characterized by the movable fluid saturation larger than 40%, the movable oil ratio(ratio of movable oil to total oil) greater than 30% and the starting pressure gradient in the range of 0.3-0.6 MPa/m; Type II reservoirs are characterized by the movable fluid saturation in the range of 10%–40%, the movable oil ratio in the range of 5%–30% and the starting pressure gradient in the range of 0.6–1.0 MPa/m; Type III reservoirs are characterized by the movable fluid saturation less than 10% in general, the movable oil ratio less than 5%, and the starting pressure gradient greater than1.0 MPa/m. The fluid mobility in tight sand reservoirs is mainly affected by diagenesis and sedimentary environment. Reservoirs with depth lower than 2000 m are dominated by type I reservoir, whereas those with greater depth are dominated by type I and II reservoirs.Reservoirs in inner delta-front facies are dominated by type I reservoir, whereas those in outer delta-front facies and shore-shallow lacustrine facies are dominated by type II and III reservoirs. | FENG Jun ZHANG Bowei FENG Zihui WANG Yachun ZHANG Juhe FU Xiaofei SUN Yonghe HUO Qiuli SHAO Hongmei ZENG Huasen QU Bin CHI Huanyuan | 2019 | Petroleum Exploration and Development2019，46，2： | 1 |
| 5 | Study on the Deformation Characteristics of the Sheet Hydroforming with a Movable Die显示文摘An improved sheet hydroforming process with a movable die is proposed and investigated by elastoplastic FEM. The effects of varied process parameters on the deformation of the sheet blanks were investigated. The effects of the movable die on the FLD were also analyzed. Using a movable die may increase the forming limit of the blank and improve the forming performance. Moreover, the drawing ratio of the blank may be increased by changing the process conditions such as blank holder force and the counterforce of the movable die on the blank. | Linxin ZHOU Yi XU Zhongtang WANG Shihong ZHANG | 2003 | Journal of Materials Science & Technology2003，19，z1： | 0 |
| 6 | Relativistic electron scattering from freely movable proton/μ^+ in the presence of strong laser field显示文摘We have investigated the electron scattering from the freely movable spin-1/2 particle in the presence of a linearly polarized laser field in the first Born approximation.The laser-dressed state of electrons is described by a time-dependent wave function which is derived from a perturbation treatment.With the aids of numerical simulations, we explore the dependencies of the differential cross section on the laser field intensity as well as the electron-impact energy.Due to the mobility of the target, the differential cross section of this process is smaller than that of Mott scattering. | 王宁月 焦利光 刘爱华 | 2019 | Chinese Physics B2019，28，9： | 0 |
| 7 | Modeling mechanical behaviors of composites with various ratios of matrixeinclusion properties using movable cellular automaton method显示文摘Two classes of composite materials are considered: classical metaleceramic composites with reinforcing hard inclusions as well as hard ceramics matrix with soft gel inclusions. Movable cellular automaton method is used for modeling the mechanical behaviors of such different heterogeneous materials. The method is based on particle approach and may be considered as a kind of discrete element method. The main feature of the method is the use of many-body forces of inter-element interaction within the formalism of simply deformable element approximation. It was shown that the strength of reinforcing particles and the width of particle-binder interphase boundaries had determining influence on the service characteristics of metaleceramic composite. In particular, the increasing of strength of carbide inclusions may lead to significant increase in the strength and ultimate strain of composite material. On the example of porous zirconia ceramics it was shown that the change in the mechanical properties of pore surface leads to the corresponding change in effective elastic modulus and strength limit of the ceramic sample. The less is the pore size, the more is this effect. The increase in the elastic properties of pore surface of ceramics may reduce its fracture energy. | A.Yu.SMOLIN E.V.SHILKO S.V.ASTAFUROV I.S.KONOVALENKO S.P.BUYAKOVA S.G.PSAKHIE | 2015 | Defence Technology(防务技术)2015，11，1： | 0 |
| 8 | FFSLCD的movable mura研究及改善显示文摘TFT-LCD中面板的显示不均现象一直是存在的,只是程度上各有轻重,此显示不均的现象我们统称为“mura”,其造成的原因和状态也是各不相同。按压movable mura主要是指触摸按压屏幕,mura随触摸位置移动,压力消失后mura不能恢复,低灰阶或关机状态下均明显可见。提高灰阶后,调回暗态mura也不可消失。此mura主要存在于IPS/FFS显示模式中。本文主要对此mura的产生机理进行探讨和实验论证。最终提出改善方向:提升IPS/FFS LCD显示面板的液晶量,优化PS设计。 | 陈钢 | 2018 | 通信与广播电视2018，0，4： | 0 |
| 9 | TD-SCDMA系统中的动态信道分配方案 | 郭思贝 李方伟 | 2006 | 计算机与信息技术2006，，7： | 0 |
| 10 | Application of the Largest Movable Mold EMS on a Large Section Size CC Bloom显示文摘The largest movable mold EMS developed by POSCO in collaboration with Daineli-Rotelec for improving internal quality of a large CC bloom is being used at a large size bloom caster of POSCO since 2011.Internal quality of carbon steel CC bloom of 700×700 mm^2 section size with the mold EMS was much improved compared with without the mold EMS.Equiaxed zone ratio increased from 50%to 100%and the grain of equiaxed structure became globular and fine.Top shrinkage was also much reduced by applying the movable mold EMS. | OH Kyung-shik LEE Joo-dong KIM Sung-jul SIEBO Kunstreich | 2012 | Journal of Iron and Steel Research(International)2012，19，S2： | 0 |
| 11 | STUDY ON GAP DISTRIBUTION IN MOVABLE SLEEVE-TOOTH DRIVE显示文摘STUDYONGAPDISTRIBUTIONINMOVABLESLEEVETOOTHDRIVE①LiMingshanLiHuaminHarbinInstituteofTechnologyZhouYouqiangBeijingGraduateScho... | Li Mingshan Li Huamin Harbin Institute of Technology Zhou Youqiang Beijing Graduate School of China University of Mining and Technology | 1997 | Chinese Journal of Mechanical Engineering1997，10，4： | 0 |
| 12 | A TWO-WAY INTERACTIVE MOVABLE NESTED MESH MODEL FOR TYPHOON TRACK PREDICTION显示文摘ATWO-WAYINTERACTIVEMOVABLENESTEDMESHMODELFORTYPHOONTRACKPREDICTIONWangGuomin(王国民)(DepartmentofAtmosphericSciences,NanjingUniv... | 王国民 王诗文 | 1996 | Journal of Tropical Meteorology1996，2，2： | 0 |
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