效用水平不可精确度量的一类博弈设计

一类博弈的支付或效用水平难以用准确的数量给出,而且效用水平优劣的衡量很大程度上取决于参与者由获取的信息及经验形成的主观判断。对于这一类问题,文章尝试引入相对隶属度反映效用水平,并用于有限博弈     

制造战略与企业绩效关系研究

通过文献研究和实践调查分析,构造企业制造战略检测量表,用偏最小二乘回归法来确定影响企业绩效的制造战略可观测项目,进一步分析制造战略与企业绩效的正相关关系,为企业制造战略竞争重点要素的识别和管理提供定量依据.     

Rapid Synthesis of Boron-MWW Zeolite Through a Solvent-free Strategy

ERB-1 zeolite emerges as a key bridging material for crafting heteroatom-containing MWW for versatile catalytic applications.In this study,we developed a solvent-free strategy facilitated by high-temperature condition and seed assistance,streamlining the synthesis of ERB-1 zeolite.This novel approach not only significantly reduces the growth time to 12 h compared to the conventional 168-h hydrothermal synthesis but also enhances product yield while minimizing waste generation.Benefiting from the platelet seeds and the grinding force,a distinct non-classical growth pathway,involving nanoparticle attachment,epitaxial growth,anisotropic assembly,and crystallization,was observed in the solvent-free synthesis.Through heteroatom substitution,pillared Sn-MWW was successfully prepared,exhibiting remarkable stability and catalytic performance in the Bayer-Villiger oxidation reaction of 2-adamantanone.Our findings present a simple and cost-effective way for rapid synthesis of MWW zeolite,with implications extending to diverse catalytic applications.     

Facile Synthesis and Antitumor Activities of Timosaponin AIII and Its Analogs

An efficient synthesis of timosaponin AIII (TAIII) and five structurally modified analogs via a one-pot sequential glycosylation strategy is described. A partially protected D-galactopyranosyl thioglycoside was employed for regioselective glycosylation to facilitate the target synthesis. The antitumor activities of the synthetic saponins against human epithelial cervical cancer cell (HeLa) were preliminarily evaluated by means of CCK-8 assay. An L-rhamnosyl analog was discovered to display stronger inhibitory activity (IC₅₀ 3.3 μM) than TAIII (IC₅₀ 10.7 μM) to HeLa cell. Supplemental materials are available for this article. Go to the publisher's online edition of Journal of Carbohydrate Chemistry to view the free supplemental file.     

催化抗体的催化效率优化和展望

综述了改进催化抗体催化效率的可能方法 ,包括较好的半抗原、广泛的筛选、工程化及选择优化等     

A strategy to develop fast RP-HPLC methods using monolithic silica columns

Since the appearance of monolithic silica, much work has been done describing the properties of monolithic silica columns. Meanwhile the transferability of analytical methods from conventional to monolithic silica columns has been intensively investigated [1-5]. RP HPLC method development strategies for conventional columns should be updated or scaled to meet the higher performing monolithic column technology. Because of the high permeability of monolithic silica columns it should be possible to decrease the time for method development by applying high isocratic flow rates. Here we suggest a clear strategy for method development using monolithic columns. The strategy will be applicable for various sample compositions, e. g., acidic, basic, or neutral. The applicability of monolithic columns for especially complex separations of basic mixtures without the need of using a highly basic mobile phase that harms the column will be pointed out in this work. This work will describe in detail the actual method development process. For better understanding of our strategy, the influence of flow rate, column length, mobile phase composition, pH, and temperature will be discussed. Details about the application of a flow program will be mentioned.     

基础物理实验教学中“先行组织者”策略的应用探析

文章在分析传统物理实验教学方法优缺点的基础上,明确提出了＂先行组织者＂教学策略的概念及理论,接着以具体的实验为例,研究了＂先行组织者＂教学策略在大学基础物理实验中的实践应用,并调查分析了＂先行组织者＂教学策略的正确运用对学习者的认知结构和学习效果的积极影响.结果显示,恰当、适时地应用＂先行组织者＂教学策略能够有效加强学生对实验知识的全面掌握,培养学生科学的创新思维,促进基础物理实验教学的变革和发展.     

A well-aware resource reservation strategy TAW in the Optical Burst Switched System

For the Optical Burst Switched (OBS) System, a new resource reservation strategy TAW⁺ is presented in the Intra-Domain Network Statue Model (INSM). By promptly using the control signal channel to update the INSM, better decisions are made in selecting optical path and assigning wavelength at each OBS network edge node, which can make the node to avoid reserving those being used link resources. Besides, a time slot is introduced to detect the latent collision, which not only can achieve the goal in preventing the forthcoming collision effectively, but also can better support multi-priority QoS. Furthermore, Virtual Configuration Table (VCT) at the network core node is further proposed to resolve collisions without bandwidth wastage. The analysis and simulation results verify the feasibility of the proposed strategy in the OBS network, show the enhancing of the network state awareness capability at edge node in lack of the optical conversion capability and optical buffer, and improve the effect on the data burst drop probability and QoS supports.     

Exit selection strategy in pedestrian evacuation simulation with multi-exits

A mixed strategy of the exit selection in a pedestrian evacuation simulation with multi-exits is constructed by fusing the distance-based and time-based strategies through a cognitive coefficient, in order to reduce the evacuation imbalance caused by the asymmetry of exits or pedestrian layout, to find a critical density to distinguish whether the strategy of exit selection takes effect or not, and to analyze the exit selection results with different cognitive coefficients. The strategy of exit selection is embedded in the computation of the shortest estimated distance in a dynamic parameter model, in which the concept of a jam area layer and the procedure of step-by-step expending are introduced. Simulation results indicate the characteristics of evacuation time gradually varying against cognitive coefficient and the effectiveness of reducing evacuation imbalance caused by the asymmetry of pedestrian or exit layout. It is found that there is a critical density to distinguish whether a pedestrian jam occurs in the evacuation and whether an exit selection strategy is in effect. It is also shown that the strategy of exit selection has no effect on the evacuation process in the no-effect phase with a low density, and that evacuation time and exit selection are dependent on the cognitive coefficient and pedestrian initial density in the in-effect phase with a high density.