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By using the software DEFORM3D, a numerical simulation of the double-sided roll forming of discal parts in 24 different cases has been carried out and the influences of the roller geometry, workpiece geometry and process parameters on the groove shape hav
中文意思:
摘要利用商品化软件Deform3D,对盘型件双面辗压成形过程进行了24种不同工况的数值模拟,获得了辗压沟槽的形态特征以及工具参数、工件参数和工艺参数对沟槽形态的影响。


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By using the principle of Analytic Hierarchy Process, one affirmation method to decide the target weight in assessing green ecotype residential quarters is promoted.利用层次分析法的原理,提出了一种确定绿色生态住宅小区各指标权重的方法。
By using the principle of the redundant system design in the engineering field and based on the multi-channel electronic model, this paper constructed a new kind of redundant multi-payment electronic payment model that has both high transaction efficiency摘要利用工程领域的冗余设计原理,在多通道电子支付模型的基础上构建了同时具备高交易效率和高安全性的冗余多通道电子支付模型,结合电子支付及无线通信技术的特点分析了冗余通道的选择方法,设计了相应的用户操作流程,给出了不同的冗余情形下的支付信息到达率计算公式、以及对用户感知风险和接受度的影响,对比了各种支付方式的综合性能,解决了在多通道支付模型中出现的交易效率降低的问题。
By using the properties of π-hypercenter and π-homogeneous, some sufficient and necessary conditions for a finite group to be π-nilpotent are obtained. And some well-known theorems are generalized.摘要利用π-超中心和π-齐次性的性质,对π-幂零群作了较详尽的研究,得到了有限群为π-幂零群的几个充要条件,推广了一些著名的定理。
By using the sample of strategic alliances in high-tech industry, we empirically examine the theoretical hypotheses proposed in this paper.作者使用对高技术企业战略联盟的调查样本,实证性地检验了本文提出的研究假设。
By using the single-probe change detection paradigm and a divided-attention procedure, two experiments were conducted in the present study to investigate the effects of feature dimension and attentional level on the representation of objects in visual wor摘要运用单探测的变化检测範式和注意分配程序,两个实验分别考察了由相同维度特徵组成的客体和由不同维度特徵组成的客体在工作记忆中的表徵方式,以及注意对其的作用。
By using the software DEFORM3D, a numerical simulation of the double-sided roll forming of discal parts in 24 different cases has been carried out and the influences of the roller geometry, workpiece geometry and process parameters on the groove shape hav摘要利用商品化软件Deform3D,对盘型件双面辗压成形过程进行了24种不同工况的数值模拟,获得了辗压沟槽的形态特征以及工具参数、工件参数和工艺参数对沟槽形态的影响。
By using the substitute structure approach, a rational linear iteration method is proposed where a target displacement is specified and the required design force, member strength and stiffness are obtained.其藉由使用「替代结构」,将原本复杂之结构非线性问题转化为简单易懂且较为设计者接受的线性迭代问题。
By using the theorem of fixed points on cone a class of boundary value problems of fourth order difference equation was discussed and the sufficient condition of existence of one or two positive solutions was obtained.摘要利用锥上的不动点定理对一类四阶差分方程进行了讨论,得到了一个及两个正解的存在性的充分条件。
By using the theory of stochastic stability and poisson process with time varying density, the sufficient condition for keeping the mean square asymptotically stability of systems is proved.利用随机稳定性理论和带时倚强度泊松过程相关原理,进一步证明了系统保持均方渐近稳定的充分条件。
By using the theory of transportion chain management system (TCMS), this paper analyzed the intermodal transportation chain of Yangshan Seaport and its information system flow, brought out the constructing object and function of internodal terminal inform在此,运用运输链管理系统理论,分析洋山深水港多式联运运输链及其信息系统流程,提出了洋山深水港多式联运中心信息平台的建设目标与功能,初步设计了其逻辑和物理结构,分析了运输链管理系统的功能结构。
By using the tractitional grey forecasting model and unbiased grey forecasting model, the deformations of series of slopes are forecasted; and the results indicate that both methods are valid and the later is more accurate.采用传统灰色预测模型和无偏灰色预测模型对边坡变形进行预测,预测结果表明,两种模型都是有效的,无偏灰色预测模型的精度更高。
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