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1.
大多数重要的矿业权及其交易通常具有不同于普通物品及其交易的特性,这些特性所导致的矿业权高昂交易费用,阻碍了矿业权交易,从而不利于发挥市场在配置矿业权方面的决定性作用。减少矿业权交易纠纷、提高解决交易纠纷的效率,是降低矿业权交易费用的重要途径。本文在阐述交易合约所涉及的三类信息的基础上,分析了矿业权交易纠纷专业仲裁机构在裁决矿业权交易纠纷方面相比法庭的优势,揭示了当前我国矿业权交易纠纷专业仲裁机构缺失的原因,提出了等我国的仲裁法修改完善后在矿业权交易中心成立矿业权交易纠纷专业仲裁机构的建议。 相似文献
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对Android餐饮点菜系统设计可定制的端菜谱设计,餐厅操作员可以可视化的菜谱设计界面直观拖曳控件生成An-droid端的菜谱布局,可设置相应的组件属性、文字样式以及动作参数等,并保存为XML结构的布局文件。 Android端通过下载解析该布局XML文件生成匹配的Android组件,从而大大缩短平板设备菜谱更新的周期以及降低开发成本。 相似文献
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José Eduardo O. Pessanha Carlos Portugal 《International Journal of Electrical Power & Energy Systems》2011,33(10):1695-1701
For solving the power flow sublinear problem efficiently by the GMRES preconditioned via incomplete LU factorization (ILU), this paper investigates causes associated to the preconditioner low quality and proposes a method to improve it and the GMRES convergence rate as well. The goal is provide a well-organized ILU-GMRES for solving linear systems of difficult solution comprising ill-conditioned coefficient matrices, normally associated to heavy load power systems. The investigations reveal that a dropping rule for nonzero elements (fill-ins) based on a relative tolerance may introduce large errors during the preconditioner construction, lowering its quality and the GMRES performance. Based on that, it is proposed a fill-in dropping rule making use of two criteria; one based on the resulting error and the other based on a relative tolerance, applied to the preconditioner lower (L) and upper (U) triangular matrices, respectively. Ordering schemes are also considered. Numerical experiments taking into account different power system configurations operating under heavy load conditions corroborate the efficiency of such strategies. 相似文献
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Maren Daschner De Tercero 《Chemical Engineering Communications》2013,200(1-2):234-251
Recent studies have reported that full monolayers of L-α-dilaurylphosphatidylcholine (L-DLPC) and D-α-dipalmitoylphosphatidylcholine (D-DPPC) formed at interfaces between thermotropic liquid crystals (LCs) and aqueous phases lead to homeotropic (perpendicular) orientations of nematic LCs and that specific binding of proteins to these interfaces (such as phospholipase A 2 binding to D-DPPC) can trigger orientational ordering transitions in the liquid crystals. We report on the nonspecific interactions of proteins with aqueous-LC interfaces decorated with partial monolayer coverage of L-DLPC. Whereas nonspecific interactions of four proteins (cytochrome c, bovine serum albumin, immunoglobulins, and neutravidin) do not perturb the ordering of the LC when a full monolayer of L-DLPC is assembled at the aqueous-LC interface, we observe patterned orientational transitions in the LC that reflect penetration of proteins into the interface of the LC with partial monolayer coverage of L-DLPC. The spatial patterns formed by the proteins and lipids at the interface are surprisingly complex, and in some cases the protein domains are found to compartmentalize lipid within the interfaces. These results suggest that phospholipid-decorated interfaces between thermotropic liquid crystals and aqueous phases offer the basis of a simple and versatile tool to study the spatial organization and dynamics of protein networks formed at mobile, lipid-decorated interfaces. 相似文献
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Canonical ensemble Monte Carlo study was performed for the analysis of ordering characteristics of the high temperature X 3 Al (X=Fe and Ni)-based ordered intermetallics. Calculated partial ordering energies by means of the electronic theory of alloys in pseudopotential approximation were utilized as input data to determine the Hamiltonian of the system. Bragg-Williams long-range order (LRO) and Cowley-Warren short-range order (SRO) parameters were calculated from the equilibrium configurations attained at the end of Monte Carlo simulation for each predefined temperature and Al concentration levels of X 3 Al intermetallics. It was shown that the current predictions agree well with the experimental values of LRO and SRO parameters, indicating that the systems have transformed into perfect ordered superlattices by forming a single domain in the lattice structures. It seems that this present approach on the combination of Monte Carlo simulation methods with the electronic theory of alloys in pseudopotential approximation can be successfully applied to elucidate the ordering characteristics of high temperature Fe 3 Al and Ni 3 Al intermetallics. 相似文献
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In this paper, we present and evaluate a parallel algorithm for parameter tuning of parallel applications. We discuss the impact of performance variability on the accuracy and efficiency of the optimization algorithm and propose a strategy to minimize the impact of this variability. We evaluate our algorithm within the Active Harmony system, an automated online/offline tuning framework. We study its performance on three benchmark codes: PSTSWM, HPL and POP. Compared to the Nelder–Mead algorithm, our algorithm finds better configurations up to seven times faster. For POP, we were able to improve the performance of a production sized run by 59%. 相似文献
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The flow stress of Nickel-based γ/γ′ superalloys containing up to 73 vol.% of Ni3Al precipitates is calculated by dislocation dynamics simulations of a dislocation pair gliding on {111} planes, for temperatures up to 1000 K. It is calculated for different composition-related parameters (friction stress and APB energy), as well as for different microstructural parameters (channel width, precipitate volume fraction and the geometry of the intersection of the {111} glide plane with the precipitate). The emphasis is on the bowing-assisted cutting regime, which is the prevalent deformation mechanism observed in the simulations. 相似文献
10.
FeSiAl alloys ribbons synthesized by melt-quench were annealed in vacuum at 873 K for 60 rain. The flaky powders were prepared by milling the annealed ribbons for 70 h. After milling, the powders were heat treated at 573 K for 90 rain. The ordering degree of the powders lattice structure was analyzed by X-ray diffraction (XRD). The measurement of specific saturation magnetization was carried out by vibrating samples magnetometer (VSM). Complex permittivity and complex permeability in the frequency band of 0.5-18 GHz were measured with the vector network analyzer. The ordering degree of the superlattice structure increased from 0.2'7 to 0.49. Complex permittivity and complex permeability decreased with increasing Si content. After ordering, the specific saturation magnetization decreased from 134.2 to 85.0 A.m2.kg-1. For use in anti-EMI material, the total contents of Si and Al in FeSiAl alloys should be controlled at a low level. 相似文献