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J. Cent. South Univ. Technol. (2011) 18: 642-649 DOI: 10.1007/s11771-011-0742-2 Design and implementation of model test installation of heave compensation system of deepsea mining HU Qiong(胡琼)1... Abstract: In order to validate the simulation model and develop heave compensation control strategy, heave compensation model tests were performed. The model test installation includes the mining ship......
; 文献标志码:A 文章编号:1672-7207(2014)07-2303-08 Modeling of dam crest cracks of high core rockfill dam based on cohesive zone model and crack formation analysis HU Chao, ZHOU Wei, CHANG Xiaolin, MA Gang, ZHENG Huakang (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan......
:In this work, the computational complexity of a spin-glass three-dimensional(3 D) Ising model(for the lattice size N = lmn, where l, m, n are the numbers of lattice points along three crystallographic directions) is studied. We prove that an absolute minimum core(AMC) model consisting of a spin-glass 2 D Ising model interacting with its nearest neighboring......
Trans. Nonferrous Met. Soc. China 22(2012) s596-s604 Weldability evaluation and tensile strength estimation model for aluminum alloy lap joint welding using hybrid system with laser and scanner head... strength. Among the models, the second-order polynomial estimation model had the best estimation performance, and the average error rate of this model was 0.058. Key words: laser welding; scanner remote......
Production of Integrated Automotive Part in High Pressure Diecasting Process Using Salt Core Hyun-Kwang Seok1,Jun-Su Kim2,Ki-Bae Kim1 (1.Advanced Materials Research Center,Korea Institute... concept of salt core, a melting temperature of which is lower than the solidus temperature of cast alloy,was introduced to produce an integrated casting part having a complicated inner shape or requiring......
为[12-13] (1) 式中:为剪切力；为剪切速度；为压入刃宽度；为剪切厚度；为剪切角. 设剪切热流入刀具的比率为,根据比热容计算公式,剪切面附近切屑的平均温升为 (2) 式中:为岩石比热容；为岩石密度；为刀具前角. 根据JAEGER[12]的移动摩擦表面与平面作用模型,刀具的平均温升为 (3) 式中:为岩石的导热系数；为岩石的导温系数.剪切区的相对滑移系数为 (4) 根据BLOK的温度准则[13],两接触面上的温度相等,联立式(2)与(3)求得热量传递比率为 (5) 则剪切面上的平均温升为 (6) 1.2 摩擦热解析计算 将钻头与岩石看成一个系统,根据能量守恒定律,两者之间的摩擦做功转换......
that no new solid product forms in the leaching residue and the leaching process can be described by shrinking core model. The leaching of Sb corresponds to diffusion-controlled model at low temperature (15-45... process and the leaching process can be described as typical shrinking core model [16,17]. The empirical equations are listed below: 1-(1-x)1/3=k1t ......
the requirements of the space or capacity utilization and the balance of the center of gravity. The proposed algorithm hybridizes a novel framed-layout procedure in which the concept of the core block and its...; its external search procedure generates a list of compact packing patterns while its internal search procedure is used to search the core-block frames and their best distribution locations. The approach......
model, and the integral core function was also obtained. Simultaneously, the viscous coefficients denoting the viscous behavior in visco–plastic constitutive equation were determined by taking use... constitutive relationship were established under a certain stress and temperature based on the relevant rheological model, and the integral core function was also obtained. Simultaneously......
that the leaching process follows the surface chemical reaction control kinetic law of "shrinking of unreacted core". The activation energy for pressure leaching high iron sphalerite concentrate... reaction under this condition. 2) The leaching process is controlled by the surface chemical reaction and follows the surface chemical reaction control kinetic law of " shrinking of unreacted core......
