摘要：Many dynamic optimal control models for advertising make efforts to solve the problem of determining optimal advertising expenditures and other variables of interest over time for a firm or several competing firms,However,after analyzing the extant literature,one can find that few dynamic optimal advertising models available consider the problem within the product diffusion ***,the established models involving product diffusion are inspired by the Bass model,which has been out of *** paper poses a dynamic optimal advertising model for new products,which considers the product diffusion based on the relative newly developed generalized version of the Bass *** this paper,the optimal control model is used to derive the optimal advertising expenditure policy,which gives some implications to advertising practice.

摘要：Aqueous zinc-ion batteries(AZIBs)show great potential for applications in grid-scale energy storage,given their intrinsic safety,cost effectiveness,environmental friendliness,and impressive electrochemical ***,strong electrostatic interactions exist between zinc ions and host materials,and they hinder the development of advanced cathode materials for efficient,rapid,and stable Zn-ion *** and their derivatives possess a large interlayer spacing,excellent hydrophilicity,outstanding electronic conductivity,and high redox *** materials are considered“rising star”cathode candidates for *** comprehensive review discusses recent advances in MXenes as AZIB cathodes from the perspectives of crystal structure,Zn-storage mechanism,surface modification,interlayer engineering,and conductive network design to elucidate the correlations among their composition,structure,and electrochemical *** work also outlines the remaining challenges faced by MXenes for aqueous Zn-ion storage,such as the urgent need for improved toxic preparation methods,exploration of potential novel MXene cathodes,and suppression of layered MXene restacking upon cycling,and introduces the prospects of MXene-based cathode materials for high-performance AZIBs.

摘要：An appropriate advertising mode selection and allocation of advertising budgets considering advertising budget constraints are developed with the game theory and optimization *** results show that the advertising budget and the weakening factor of the online advertising effects on the traditional advertising affect sellers advertising,pricing strategies and budget *** effectiveness of combination advertising is a Pareto optimum relative to the traditional advertising in a certain *** weakening effect of the online advertising on the traditional advertising has a nonlinear effect on the advertising strategy and pricing *** addition,sellers choose combination advertising with different budget constraints,and there is an optimal budget allocation *** certain cases,sellers can obtain an optimal advertising expenditure less than the budget *** sellers adopt combination advertising with enough budget,they do not invest in traditional advertising without ***,compared with enough budget,when sellers adopt combination advertising with budget constrain,sellers do not decrease the advertising allocation of online advertising since online advertising is more efficient.

摘要：“Thumb up advertising”is a new and effective way to spread shared advertising in social *** the retailer adapts“thumb up advertising”in marketing with a game theory model is *** results show that when the retailer chooses to thumb up the advertising in Moments,a higher reward will increase the equilibrium price but hurt the retailer s expected profit;if the consumers can more easily reach the thumb up amount,the retailer will charge a higher price,and possibly gain more *** the retailer chooses thumb up at the end of the advertising context,a higher reward will increase the equilibrium price and the retailers expected profit will increase/*** the consumers are easier to reach the thumb up amount,the retailer will charge a higher price,and may get more *** a consumer s click cost of clicking the sharing advertising is higher,the retailer charges a lower price;and if the consumer s additional perceived value from the advertising is higher,the retailer charges a higher price and reaps more profit.

摘要：Considering a one-supplier and two-retailer supply chain setting in which the supplier makes contacts with retailers in sequence based on FCFS(first–come–first-service) principle, the authors investigate the marginal effect of extra-gain guilty fairness concerns of supply chain members on the contract design, supply chain's profit and profit distribution. When the supplier considers distributional fairness of loss aversion and extra-gain guilty, extra-gain guilty concern reduces the optimal wholesale and retail price, and improves supply chain performance. When the first or the second retailer considers distributional fairness and peer-induced fairness, extra-gain guilty concerns decrease the optimal wholesale and retail price but increase the profit of all supply chain members only when the level of loss aversion is large enough and the level of extra-gain guilty is less than 1/2. However, when the level of loss aversion is small and the level of extra-gain guilty is less than 1/2, extra-gain guilty has no influence on supply chain performance. The analysis reveals that the supply chain performance can be further improved by considering fairness of extra-gain guilty.

摘要：The availability equivalence of different designs for a repairable multi-state series-parallel system(RMSPS) is discussed in this *** system components are assumed to be independent,and their failure and repair rates to be *** system availability is defined as the ability of the system to satisfy consumer *** improvement method and standby redundancy method are used to improve the system *** evaluate availability of the both original and improved systems,a fast technique,based on universal generating function,is *** availability equivalence factor is introduced to compare different system *** types of availability equivalence factors of the system are derived.A numerical example is provided to illustrate how to utilize the obtained results.

摘要：To obtain the platform s big data analytics support,manufacturers in the traditional retail channel must decide whether to use the direct online channel.A retail supply chain model and a direct online supply chain model are built,in which manufacturers design products alone in the retail channel,while the platform and manufacturer complete the product design in the direct online *** two models are analyzed using the game theoretical model and numerical *** findings indicate that if the manufacturers design capabilities are not very high and the commission rate is not very low,the manufacturers will choose the direct online channel if the platform s technical efforts are within an *** the platform s technical efforts are exogenous,they positively influence the manufacturers decisions;however,in the endogenous case,the platform s effect on the manufacturers is reflected in the interaction of the commission rate and cost *** manufacturers and the platform should make synthetic effort decisions based on the manufacturer s development capabilities,the intensity of market competition,and the cost efficiency of the platform.

摘要：To encourage retailers to form cooperative alliances to jointly replenish inventory,considering that the supplier provides a flexible lead time and quantity discount to retailers,a model of average total cost per unit time of periodic joint replenishment is constructed,and an approximate algorithm,which can satisfy the requirement of any given precision,is *** cost allocation rule in the core of the joint replenishment game is designed based on the cooperative game *** numerical experiment results show that the proposed algorithm can quickly solve the joint replenishment problem when the item number is not greater than *** retailer's cost saving rate is always greater than 0,and it increases with the increase in quantity discount and fixed cost after adopting the given cost allocation *** the increase in the safety stock level,the retailer's cost saving rate increases first and then decreases;and the retailer's cost saving rate increases with the increase in the size of the alliance,but it decreases as the number of product category *** proposed cost allocation rule can reduce the retailer's cost up to 20%,which is conducive to forming a cooperative coalition.

摘要：This paper presents a bi-level hybrid local search(BHLS)algorithm for the three-dimensional loading problem with balancing constraints(3DLP-B),where several rectangular boxes with even densities but different sizes are loaded into a single cubic bin to meet the requirements of the space or capacity utilization and the balance of the center of *** proposed algorithm hybridizes a novel framed-layout procedure in which the concept of the core block and its generation strategy are *** the block-loading sequence has been determined,we can load one block at a time by the designed construction ***,the double-search is introduced;its external search procedure generates a list of compact packing patterns while its internal search procedure is used to search the core-block frames and their best distribution *** approach is extensively tested on weakly to strongly heterogeneous benchmark *** results show that it has better performance in improving space utilization rate and balanced condition of the placement than existed techniques:the overall averages from 79.85%to 86.45%were obtained for the balanced cases and relatively high space-usage rate of 89.44%was achieved for the unbalanced ones.

摘要：Design-manufacturing chain （D-MC） is the most important link of the supply chain with the greatest possibility in cost reduction. How to strengthen the effective management of interracial relationship between designer and manufacturer and increase the efficency of interface management concerns the efficiency of the whole supply chain. In order to evaluate and improve the impacts of D-MC interfacial relationship, first we should construct the evaluation index system and then we should analyze the total cost and benefit of the interfacial relationship betterment, including the cost of member units in D-MC, the opportunity cost of cooperation partners, and the market returns resulted from the interfacial relationship improvement, which will advance the whole supply chain efficiency as well as enhance the management performance of D-MC.