摘要：What is the most favorite and original chemistry developed in your research group? Developing PIP amine for regio-and enantioselective methylene C-H activation. How do you get into this specific field? Could you please share some experiences with our readers?

摘要：随着“双碳”战略的推进与新能源技术的飞速发展,对安全且环保的电池技术需求也日益增加。本文综合应用化学、材料科学和电化学原理,设计了一项基于凝胶电解质的水系电池的组装与性能研究的综合创新实验。本实验旨在从理论到实践深化学生对先进电池技术的理解,涵盖凝胶电解质制备与表征、水系电池组装、电池性能评估等方面,探讨材料制备与电池组装过程对电池性能的影响因素。通过融合绿色化学和可持续发展理念,本实验将引导学生思考如何将化学知识应用于解决实际问题,激发学生科研兴趣和创新思维。

摘要：This paper introduces an ant colony routing and wavelength assignment algorithm based on cross-layer design(CL-ACRWA),which can overcome the adverse effects of Doppler wavelength shift on data transmission in optical satellite networks. Firstly, a cross-layer optimization model is built, which considers the Doppler wavelength shift, the transmission delay as well as wavelength-continuity constraint. Then an ant colony algorithm is utilized to solve the cross-layer optimization model, resulting in finding an optimal light path satisfying the above constraints for every connection request. The performance of CL-ACRWA is measured by the communication success probability, the convergence property and the transmission delay. Simulation results show that CL-ACRWA performs well in communication success probability and has good global search ability as well as fast convergence speed. Meanwhile, the transmission delay can meet the basic requirement of real-time transmission of business.

摘要：The use of a reconfigurable intelligent surface(RIS)in the enhancement of the rate performance is considered to involve the limitation of the RIS being a passive *** address this issue,we propose a RIS-aided amplify-and-forward(AF)relay network in this *** jointly optimizing the beamforming matrix at AF relay and the phase-shift matrices at RIS,two schemes are put forward to address a maximizing signal-to-noise ratio(SNR)***,aiming at achieving a high rate,a high-performance alternating optimization(AO)method based on Charnes–Cooper transformation and semidefinite programming(CCT-SDP)is proposed,where the optimization problem is decomposed into three subproblems solved using CCT-SDP,and rank-one solutions can be recovered using Gaussian ***,the optimization variables in the CCT-SDP method are matrices,leading to extremely high *** reduce the complexity,a low-complexity AO scheme based on Dinkelbachs transformation and successive convex approximation(DT-SCA)is proposed,where the variables are represented in vector form,and the three decoupling subproblems are solved using *** results verify that compared to three benchmarks(i.e.,a RIS-assisted AF relay network with random phase,an AF relay network without RIS,and a RIS-aided network without AF relay),the proposed CCT-SDP and DT-SCA schemes can harvest better rate ***,it is revealed that the rate of the low-complexity DT-SCA method is close to that of the CCT-SDP method.

摘要：Exorbitant aldosterone is closely associated with various severe diseases,including congestive heart failure and chronic kidney *** aldosterone synthase is the pivotal enzyme in aldosterone biosynthesis,its inhibition constitutes a promising treatment for these *** a structure-based approach,a series of pyridyl substituted 3,4-dihydrobenzo[f][1,4]oxazepin-5(2 H)-ones were designed as inhibitors of aldosterone *** compounds(5 j,5 l,5 m 5 w,5 x and 5 y)distinguished themselves with potent inhibition(IC50<100 nmol/L)and high selectivity over homogenous 11β-*** the most promising compound,5 x exhibited an IC_(50) of 12 nmol/L and an excellent selectivity factor(SF)of157,which are both superior to those of the re ference fadrazole(IC_(50)=21 nmol/L,SF=7).Importantly,5 x showed no inhibition against steroidogenic CYP17,CYP19 and a panel of hepatic CYP enzymes indicating an outstanding sa fety *** it manifested satis factory pharmacokinetic pro perties in rats,compound5 x was considered as a drug candidate for further development.

摘要：As an important element in sustainable building design, the building envelope has been witnessing a constant shift in the design approach. Integrating multi-objective optimization (MOO) into the building envelope design process is very promising, but not easy to realize in an actual project due to several factors, including the complexity of optimization model construction, lack of a dynamic-visualization capacity in the simulation tools and consideration of how to match the optimization with the actual design process. To overcome these difficulties, this study constructed an integrated building envelope design process (IBEDP) based on parametric modelling, which was implemented using Grasshopper platform and interfaces to control the simulation software and optimization algorithm. A railway station was selected as a case study for applying the proposed IBEDP, which also utilized a grid-based variable design approach to achieve flexible optimum fenestrations. To facilitate the stepwise design process, a novel strategy was proposed with a two-step optimization, which optimized various categories of variables separately. Compared with a one-step optimization, though the proposed strategy performed poorly in the diversity of solutions, the quantitative assessment of the qualities of Pareto-optimum solution sets illustrates that it is superior. © 2016, Tianjin University and Springer-Verlag Berlin Heidelberg.

摘要：The exploitation of competent electrocatalysts is a key issue of the broad application of many promising electrochemical processes,including the hydrogen evolution reaction(HER),the oxygen evolution reaction(OER),the oxygen reduction reaction(ORR),the CO_(2) reduction reaction(CO_(2)RR)and the nitrogen reduction reaction(NRR).The traditional searches for good electrocatalysts rely on the trial-and-error approaches,which are typically tedious and *** the past decades,some fundamental principles,activity descriptors and catalytic mechanisms have been established to accelerate the discovery of advanced ***,it is time to summarize these theory-related research advances that unravel the structure-performance relationships and enables predictive ability in electrocatalysis *** this review,we summarize some basic aspects of catalytic theories that are commonly used in the design of electrocatalysts(e.g.,Sabatier principle,d-band theory,adsorption-energy scaling relation,activity descriptors)and their ***,we briefly introduced the fundamental mechanisms and central challenges of HER,OER,ORR,CO_(2)RR and NRR electrocatalysts,and highlight the theory-based efforts used to address the challenges facing these electrocatalysis ***,we propose the key challenges and opportunities of theory-driven electrocatalysis on their future.

摘要：目的根据《国际功能、残疾和健康分类》的理论与方法,系统评价艺术治疗对轻度认知障碍(MCI)老年人心理健康的干预效果。方法检索中国知网、维普、万方数据库、PubMed、ProQuest和Web of Science数据库,检索2014年至2024年间发表的艺术治疗干预MCI老年群体心理健康的文献。根据纳入和排除标准对文献进行筛选,采用PEDro量表进行方法学质量评价,遵循PRISMA指南进行系统综述。结果最终纳入9篇文献,来自中国、坦桑尼亚、西班牙、马来西亚和新加坡5个国家,共763例60岁以上MCI老年人,平均年龄71.23岁。艺术治疗形式主要包括视觉艺术疗法(绘画、拼贴、剪纸、雕塑和建模等)、表达性艺术疗法(舞蹈和音乐),以及创造性艺术疗法(故事创作)。每次30~120 min,以每次60 min居多;每周1~4次,以每周2~4次居多;共干预6~36周,以6~12周居多。健康结局集中于改善焦虑、抑郁等心理健康。结论多数研究证实,艺术治疗对MCI老年人的心理健康具有积极影响,但个别研究存在分歧,尚待进一步深入研究。

摘要：The scale effect leads to large discrepancies between the wake fields of model-scale and actual ships, and causes differences in cavitation performance and exciting forces tests in predicting the performance of actual ships. Therefore, when test data from ship models are directly applied to predict the performance of actual ships, test results must be subjected to empirical corrections. This study proposes a method for the reverse design of the hull model. Compared to a geometrically similar hull model, the wake field generated by the modified model is closer to that of an actual ship. A non-geometrically similar model of a Korean Research Institute of Ship and Ocean Engineering （KRISO）’s container ship （KCS） was designed. Numerical simulations were performed using this model, and its results were compared with full-scale calculation results. The deformation method of getting the wake field of full-scale ships by the non-geometrically similar model is applied to the KCS successfully.

摘要：The development of efficient oxygen evolution electrocatalysts with reduced noble metal uses is a critical challenge for the deployment of various advanced energy conversion ***,a series of lanthanide-contained 6H-perovskites with a formula of Ba3LnIr2〇9(Ln=lanthanides)are investigated as oxygen evolution electrocatalysts,whose active subunits(i.e.,face-sharing Ir〇6 dimers)can be regulated by the lanthanides in terms of catalytic *** using density functional theory(DFT)calculations,we establish the theoretical trend in activity for Ba3LnIr2〇96H-perovskites,the activity of which is correlated with the difference of adsorption free energy(△G〇-△Goh)between O*and OH*reaction *** further establish a volcano curve between△Go—△Goh and the calculated 0 p-band center Among the Ba3LnIr2〇96H-perovskites,Ba3Lalr2〇9 locates at the peak of volcano curve,and correspondingly is the most active electrocatalyst due to the optimal 0 p-band property.