共查询到10条相似文献，搜索用时 281 毫秒
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利用一种称为代数型闭包的向量闭包,讨论了线性空间中极值映射向量优化问题的ε-真有效解,在集值映射为广义向量似凸的假设下,建立了这种解的标量化定理和ε-Lagrange乘子定理.Abstract： The authors use a concept of algebraic type of closure which is called vector closure . Through this closure they discuss ε-properly efficient solutions of vector optimization problems with set-valued maps. Under the assumption of the generalized cone-subconvexlikeness for Set-valued maps, the authors obtain the scalarization theorem and the ε-Lagrange multipliers theorems for ε-properly efficient solutions of vector optimization problems with set-valued maps. 相似文献
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利用有限维空间上变分不等式解的存在性理论,讨论了带有Brézis伪单调算子的广义变分不等式在一般拓扑空间上解的存在性,及广义拟变分不等式在局部凸Hausdorff拓扑向量空间上解的存在性.Abstract： By the theorem of existence of solutions for the variational inequalities in the finite dimensional space, the topological vector spaces and generalized quasi-variatonal inequalities in locally convex Hausdorff topological vector spaces are established. 相似文献
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通过引入弱上半连续的概念,利用标量化结果研究了向量平衡问题各种解的连通性和道路连通性,推广了Gong X H的相应的结论.Abstract： In this paper,using the scalarization method,we study path connectedness and connectedness of various proper efficient solution sets for vector equilibrium problems by introducing the concept of weakly upper semicontinuity and improve the corresponding result of Gong X H. 相似文献
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研究了一类非光滑多目标分式规划问题的对偶问题.首先,借助于Clarke广义梯度,引入了一类广义不变凸函数概念;然后,在此基础上,给出并证明了该对偶问题的弱对偶定理、强对偶定理和严格逆对偶定理.Abstract： .In this paper, the duality for a class of non-smooth multi-objective fractional programming prob-lems is studied.Using Clarke generalized gradient, the concept of a class of generalized invexity functions is introduced and, based on this, the weak duality theorem, the strong duality theorem and the strict con-verse duality theorem for the dual problems are obtained and proved. 相似文献
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ZHANGQin TAOBen-zao ZHAOChao-ying WANGLi 《勤云标准版测试》2005,(2):170-176
Because of the ignored items after linearization, the extended Kalman filter (EKF) becomes a form of suboptimal gradient descent algorithm. The emanative tendency exists in GPS solution when the filter equations are ill-posed. The deviation in the estimation cannot be avoided. Furthermore, the true solution may be lost in pseudorange positioning because the linearized pseudorange equations are partial solutions. To solve the above problems in GPS dynamic positioning by using EKF, a closed-form Kalman filter method called the two-stage algorithm is presented for the nonlinear algebraic solution of GPS dynamic positioning based on the global nonlinear least squares closed algorithm--Bancroft numerical algorithm of American. The method separates the spatial parts from temporal parts during processing the GPS filter problems, and solves the nonlinear GPS dynamic positioning, thus getting stable and reliable dynamic positioning solutions. 相似文献
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Minty向量似变分不等式与向量优化问题 总被引：3，自引：0，他引：3
讨论了Minty向量似变分不等式的解与向量优化问题的解之间的关系问题.在伪不变凸或不变伪单调的条件下,证明了Minty（弱）向量似变分不等式的解和向量优化问题的（弱）有效解是相同的. 相似文献
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Cultured beef is a method where stem cells from skeletal muscle of cows are cultured in vitro to gain edible muscle tissue. For large-scale production of cultured beef, the culture technique needs to become more efficient than today’s 2-dimensional(2D) standard technique that was used to make the first cultured hamburger. Options for efficient large-scale production of stem cells are to culture cells on microcarriers, either in suspension or in a packed bed bioreactor, or to culture aggregated cells in suspension. We discuss the pros and cons of these systems as well as the possibilities to use the systems for tissue culture. Either of the production systems needs to be optimized to achieve an efficient production of cultured beef. It is anticipated that the optimization of large-scale cell culture as performed for other stem cells can be translated into successful protocols for bovine satellite cells resulting in resource and cost efficient cultured beef. 相似文献
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利用变量替换和Ekeland变分原理,在R～N上获得了一类具有非自治扰动的拟线性椭同方程非平凡解的存在性结果.Abstract： The existence of a nontrivial solution is obtained for a quasilinear elliptic equations on RN with a non-autonomous perturbation by the change of variable and the Ekeland's variational principle. 相似文献
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Yagil Reuven 《农业科学与技术》2013,(8):575-580
This communication brings scientific evidence to explain the basis for efficacy of camel milk, especially on diseases where the immune system is compromised. Camels （Camelu sdromedarius） have very small and active antibodies, nanaobodies. Their special properties are being used by the USA Department of Homeland Security as bio-receptors to determine which substance could be used in a biological warfare attack. The antibodies are part of the ＂protective proteins＂ in camel milk. These include potent antibacterial, antiviral and antifungal properties. Camel milk antibodies are, in fact, ＂nanobodies＂. They are not destroyed in their passage through the stomach. These nanobodies are responsible for data concerning the use of camel milk in autoimmune diseases. Various diseases treated with camel milk are presented, as is the mode of action. The effect of pasteurization on activity of camel milk is presented as a way to overcome the need for heat. This is accomplished by presenting ＂pathogen-free＂ camel milk. The antibodies are part of the ＂protective proteins＂ in camel milk. These include potent antibacterial, antiviral and antifungal properties. The effect of pasteurization on activity of camel milk is presented as a way to overcome the need for heat. This is accomplished by presenting ＂pathogen-free＂ camel milk. 相似文献