In this paper,the concept of right adequate transversals of rpp semigroups is introduced.We establish the structure of rpp semigroups with multiplicative right adequate transversals in terms of right normal bands and ...In this paper,the concept of right adequate transversals of rpp semigroups is introduced.We establish the structure of rpp semigroups with multiplicative right adequate transversals in terms of right normal bands and right adequate semigroups.In particular, some special cases are considered.展开更多
It is well known that there exists the smallest inverse semigroup congruence on an orthodox semigroup. We denote by Y the smallest inverse semigroup congruence on an orthodox semigroup. Let S be a right inverse semigr...It is well known that there exists the smallest inverse semigroup congruence on an orthodox semigroup. We denote by Y the smallest inverse semigroup congruence on an orthodox semigroup. Let S be a right inverse semigroup. We construct partial orders on S by some kind of its subsemigroups and uncover that partial orders on S have close contact with partial orders on S/Y.展开更多
Wlpp semigroups are generalizations of lpp semigroups and regular semigroups. In this paper, we consider some kinds of wlpp semigroups, namely right-e wlpp semigroups. It is proved that such a semigroup S, if and only...Wlpp semigroups are generalizations of lpp semigroups and regular semigroups. In this paper, we consider some kinds of wlpp semigroups, namely right-e wlpp semigroups. It is proved that such a semigroup S, if and only if S is the strong semilattice of L-right cancellative planks; also if and only if S is a spined product of a right-e wlpp semigroup and a left normal band.展开更多
某新能源汽车企业采用高耐蚀钢S450AW冲压右门板零件,出现四个拐角凸台高度明显偏低的问题,无法满足产品要求。为快速解决生产实际问题,根据产品数模制作拉延及整形分析模型,采用计算机辅助工程(CAE)模拟完成右车门板冲压全工序模拟分析...某新能源汽车企业采用高耐蚀钢S450AW冲压右门板零件,出现四个拐角凸台高度明显偏低的问题,无法满足产品要求。为快速解决生产实际问题,根据产品数模制作拉延及整形分析模型,采用计算机辅助工程(CAE)模拟完成右车门板冲压全工序模拟分析,将仿真分析结果与ATOS I 350&TRITOP三维光学测绘仪逆向扫面实际冲压模具上下模的模面进行对比研究,确定了冲压问题的产生原因并制定模具优化方案。实施优化方案并冲压验证,解决零件凸台高度不足问题,为今后解决此类问题提供了可供选择的技术方案。展开更多
把由 G. Thierrin和 A. Spoletini- Cherubini等人定义并研究的强可逆半群以及由 S.Bogdanovic研究的半准素半群分别推广为强可逆序半群和半准素序半群 .分别给出了半准素序半群和强可逆序半群类中的半准素序半群的刻划 ,还给出了其所...把由 G. Thierrin和 A. Spoletini- Cherubini等人定义并研究的强可逆半群以及由 S.Bogdanovic研究的半准素半群分别推广为强可逆序半群和半准素序半群 .分别给出了半准素序半群和强可逆序半群类中的半准素序半群的刻划 ,还给出了其所有理想是素理想的强可逆序半群的刻划 .展开更多
基金Supported by the NNSF of China(10961014)Supported by the NSF of Jiangxi ProvinceSupported by the SF of Education Department of Jiangxi Province(GJJ11388)
文摘In this paper,the concept of right adequate transversals of rpp semigroups is introduced.We establish the structure of rpp semigroups with multiplicative right adequate transversals in terms of right normal bands and right adequate semigroups.In particular, some special cases are considered.
基金Foundation item： Supported by NSF of China（10471112） Supported by Shaanxi Provincial Natural Science Foundation（2005A15） Acknowledgement The authors express their gratitude to the referees for very helpful and detailed comments.
文摘It is well known that there exists the smallest inverse semigroup congruence on an orthodox semigroup. We denote by Y the smallest inverse semigroup congruence on an orthodox semigroup. Let S be a right inverse semigroup. We construct partial orders on S by some kind of its subsemigroups and uncover that partial orders on S have close contact with partial orders on S/Y.
基金The NSF(11471255)of Chinathe Scientific Research Project(15JK1411)of Education Department of Shaanxi Provincial Governmentthe Scientific Research Project(17KY02)of College
文摘Wlpp semigroups are generalizations of lpp semigroups and regular semigroups. In this paper, we consider some kinds of wlpp semigroups, namely right-e wlpp semigroups. It is proved that such a semigroup S, if and only if S is the strong semilattice of L-right cancellative planks; also if and only if S is a spined product of a right-e wlpp semigroup and a left normal band.
文摘某新能源汽车企业采用高耐蚀钢S450AW冲压右门板零件,出现四个拐角凸台高度明显偏低的问题,无法满足产品要求。为快速解决生产实际问题,根据产品数模制作拉延及整形分析模型,采用计算机辅助工程(CAE)模拟完成右车门板冲压全工序模拟分析,将仿真分析结果与ATOS I 350&TRITOP三维光学测绘仪逆向扫面实际冲压模具上下模的模面进行对比研究,确定了冲压问题的产生原因并制定模具优化方案。实施优化方案并冲压验证,解决零件凸台高度不足问题,为今后解决此类问题提供了可供选择的技术方案。
文摘把由 G. Thierrin和 A. Spoletini- Cherubini等人定义并研究的强可逆半群以及由 S.Bogdanovic研究的半准素半群分别推广为强可逆序半群和半准素序半群 .分别给出了半准素序半群和强可逆序半群类中的半准素序半群的刻划 ,还给出了其所有理想是素理想的强可逆序半群的刻划 .
