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Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 578-604页

作者： Caixia Li Wenwu Liu Shiji Da Lingbin Kong Fen Ran State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology school of Materials Science and Engineering Lanzhou University of Technology

Photovoltaic metal halide perovskite solar cells(PSCs) convert light to electricity more efficiently than crystalline silicon cells, and the cost of materials used to make them is lower than that of silicon *** efficiency is not a core issue affecting the application of perovskite solar cells in special *** present, stability is the major technical encounters that hinders its further commercial development. Microstrain in PSCs is currently a significant factor responsible for the device's instability. Strain-induced ion migration is widely believed to accelerate perovskite degradation even when external stimuli are ***, it is imperative to study strain to enhance the stability of PSCs. This paper reviews recent developments to understand strain's origin and effect mechanisms on performance of PSCs, including ion migration,failure behavior, defect formation, and its effect on photoelectric properties, stability, and ***, several well-known strain management strategies are systematically introduced based on the strain effect mechanism and strain engineering on the film, providing more clues for further preparation with increased stability. The manipulation of external physical strain applied from films to entire devices has been extensively studied. Furthermore, recommendations for future research directions and chemical approaches have been provided. It is emphasized that strain engineering plays a crucial role in improving the efficiency and longevity of PSCs. Tensile strain causes rapid degradation, while moderate compressive strain and external strain control could improve properties and stability. Efforts should focus on controlling compressive strain to mitigate residual tensile strain and introducing it in a controlled manner. Future research endeavors may focus on exploring these pathways to improve the efficiency and lifespan of PSCs.

关键词： Halide perovskite solar cells Strain origins Strain effects Strain management

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Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第01期 201-208页

作者： Hui-Feng Wang Wen-Jie Shi Yu-Xin Yang Bao-Xia Dong Tong-Bu Lu Di-Chang Zhong school of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

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Diabetic peripheral neuropathy and neuromodulation techniques:a systematic review of progress and prospects

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Neural Regeneration Research 2025年第8期20卷 2218-2230页

作者： Rahul Mittal Keelin McKenna Grant Keith Evan McKenna Joana R.N.Lemos Jeenu Mittal Khemraj Hirani Diabetes Research Institute University of Miami Miller School of MedicineMiamiFLUSA Department of Otolaryngology University of Miami Miller School of MedicineMiamiFLUSA Herbert Wertheim College of Medicine Florida International UniversityMiamiFLUSA school of Medicine and Public Health University of WisconsinMadisonWIUSA

Neuromodulation for diabetic peripheral neuropathy represents a significant area of interest in the management of chronic pain associated with this *** peripheral neuropathy,a common complication of diabetes,is characterized by nerve damage due to high blood sugar levels that lead to symptoms,such as pain,tingling,and numbness,primarily in the hands and *** aim of this systematic review was to evaluate the efficacy of neuromodulatory techniques as potential therapeutic interventions for patients with diabetic peripheral neuropathy,while also examining recent developments in this *** investigation encompassed an array of neuromodulation methods,including frequency rhythmic electrical modulated systems,dorsal root ganglion stimulation,and spinal cord *** systematic review suggests that neuromodulatory techniques may be useful in the treatment of diabetic peripheral *** the advantages of these treatments will enable physicians and other healthcare providers to offer additional options for patients with symptoms refractory to standard pharmacologic *** these efforts,we may improve quality of life and increase functional capacity in patients suffering from complications related to diabetic neuropathy.

关键词： diabetes mellitus diabetic peripheral neuropathy neuromodulation neurostimulation therapy non-pharmacological treatment pain management

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Predicting new firm survival and growth:The power of alternative data

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Economic and Political Studies 2024年第1期12卷 58-87页

作者： Su Wang school of entrepreneurship and management ShanghaiTech UniversityShanghaiChina

This paper demonstrates that the alternative data of manager turnover can provide investors and policymakers with a more timely and available predictor of new firm performance beyond the traditional financial *** paper constructs a comprehensive alternative dataset of manager turnover that covers a near-population sample of new firms in the United *** shows that manager departures and appointments can predict new firms’survival and growth,even after controlling for firm *** addition to the within-firm prediction,the average manager turnover in other firms of the same industry can cross-predict individual firm *** within-firm prediction is more pronounced for non-family firms,smaller firms and firms incorporated during or after the Great Recession,and the cross-firm prediction is stronger for younger *** paper sheds light on the power of alternative data in the prediction of firm performance,particularly for new firms that often do not have available information.

关键词： Alternative data new firms manager turnover firm performance

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Modeling multi-generational diffusion for competitive brands:an analysis for telecommunication industries

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Journal of management Analytics 2021年第4期8卷 715-740页

作者： Gunjan Bansal Adarsh Anand Deepti Aggrawal Department of Operational University of DelhiDelhiIndia university school of management and entrepreneurship Delhi Technological UniversityDelhiIndia

Manufacturers keep bringing necessary rectifications in the products to achieve constant market penetration and high customer *** present paper proposes a modeling framework wherein the impact of customer satisfaction with the first generation of a product is measured and its significant role has been incorporated in the adoption of a subsequent generation of the *** model also integrates the influence of competition which is classified under two categories such that:-(a)competition within successive generations of the brand;and(b)competition among different ***,model validation is performed using telecommunication industry sales data and sales are forecasted in two different ways *** secondary data(a formal way)and primary data;where a survey of first-generation consumers is carried out and the concept of brand switching analysis and logistic regression have applied to analyze the market switching behavior and the satisfaction measure in the proposed models.

关键词： OR in marketing brand switching analysis diffusion modeling industrial marketing logistic regression

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Rivers increasingly warmer:Prediction of changes in the thermal regime of rivers in Poland

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Journal of Geographical Sciences 2025年第1期 139-174页

作者： Mariusz PTAK Teerachai AMNUAYLOJAROEN Mariusz SOJKA Department of Hydrology and Water management Adam Mickiewicz University school of Energy and Environment University of Phayao Atmospheric Pollution and Climate Research Unit School of Energy and Environment University of Phayao Department of Land Improvement Environmental Development and Spatial Management Poznań University of Life Sciences

Emphasis on future environmental changes grows due to climate change, with simulations predicting rising river temperatures globally. For Poland, which has a long history of thermal studies of rivers, such an approach has not been implemented to date. This study used 9 Global Climate Models and tested three machine-learning techniques to predict river temperature changes. Random Forest performed best, with R2=0.88 and lowest error(RMSE:2.25, MAE:1.72). The range of future water temperature changes by the end of the 21st century was based on the Shared Socioeconomic Pathway scenarios SSP2-4.5 and SSP5-8.5. It was determined that by the end of the 21st century, the average temperature will increase by 2.1°C(SSP2-4.5) and 3.7°C(SSP5-8.5). A more detailed analysis, divided by two major basins Vistula and Odra, covered about 90% of Poland's territory. The average temperature increase, according to scenarios SSP2-4.5 and SSP5-8.5 for the Odra basin rivers,is 1.6°C and 3.2°C and for the Vistula basin rivers 2.3°C and 3.8°C, respectively. The Vistula basin's higher warming is due to less groundwater input and continental climate *** findings provide a crucial basis for water management to mitigate warming effects in Poland.

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Regression analysis of squeezing-induced hybrid nanofluid flow in Darcy-Forchheimer porous medium

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 193-208页

作者： K.MUHAMMAD M.SARFRAZ Department of Humanities and Sciences School of Electrical Engineering and Computer Science National University of Sciences and Technology Department of Mathematics Quaid-i-Azam University

This article presents a mathematical model addressing a scenario involving a hybrid nanofluid flow between two infinite parallel plates. One plate remains stationary, while the other moves downward at a squeezing velocity. The space between these plates contains a Darcy-Forchheimer porous medium. A mixture of water-based fluid with gold(Au) and silicon dioxide(Si O2) nanoparticles is formulated. In contrast to the conventional Fourier's heat flux equation, this study employs the Cattaneo-Christov heat flux equation. A uniform magnetic field is applied perpendicular to the flow direction, invoking magnetohydrodynamic(MHD) effects. Further, the model accounts for Joule heating, which is the heat generated when an electric current passes through the fluid. The problem is solved via NDSolve in MATHEMATICA. Numerical and statistical analyses are conducted to provide insights into the behavior of the nanomaterials between the parallel plates with respect to the flow, energy transport, and skin *** findings of this study have potential applications in enhancing cooling systems and optimizing thermal management strategies. It is observed that the squeezing motion generates additional pressure gradients within the fluid, which enhances the flow rate but reduces the frictional drag. Consequently, the fluid is pushed more vigorously between the plates, increasing the flow velocity. As the fluid experiences higher flow rates due to the increased squeezing effect, it spends less time in the region between the plates. The thermal relaxation, however, abruptly changes the temperature, leading to a decrease in the temperature fluctuations.

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OUTSOURCING DECISION AND ORDER POLICY WITH FORECAST UPDATING UNDER CAPACITY RESERVATION CONTRACT

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Journal of Systems Science and Systems Engineering 2014年第1期23卷 39-79页

作者： Jianbin LI Mingzheng WANG Wei ZHOU Weihua ZHOU school of management Huazhong University of Science and Technology school of management Science and Engineering Dalian University of Technology school of management Zhejiang University

This paper investigates an optimal decision problem in a single-period, two-stage supply chain with capacity reservation contract. At the beginning of the planning horizon, the retailer, who faces stochastic demand, reserves future capacity according to his forecasting of the demand. The supplier then constructs capacity. At the beginning of the selling season, the retailer updates the demand forecasting and places an order. When the retailer＇s demand is greater than the supplier＇s capacity, the supplier can meet the retailer＇s demand by outsourcing. We analyze the optimal decision of each player in both centralized and decentralized systems. Furthermore, under the case in which demand follows a uniform distribution, we obtain the closed-form optimal strategies of each player for both centralized and decentralized systems and conduct numerical studies to reveal additional conclusions. The numerical studies show that the optimal reservation capacity for the retailer and the optimal constructing capacity for the supplier in the decentralized system are both less than the optimal constructing capacity in the centralized system. Furthermore, we also find that the profit loss due to decentralization always exists and increases in indeterminacy.

关键词： Supply chain coordination forecast updating reserving contract outsourcing

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New method for hybrid multiple attribute decision-making problems with decision maker's aspiration level

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Journal of Systems Engineering and Electronics 2017年第1期28卷 97-102页

作者： Bengang Gong Dandan Guo Wenqi Jiang school of management Fudan University school of management Engineering Anhui Polytechnic University school of Economics and management Nanjing University of Science and Technology

How can we account for decision maker's aspiration level in multiple attribute decision-making problems? This is a question that has recently gained much scholarly attention. This study draws on the prospect theory and the Dempster-Shafer theory to propose a method that can resolve this issue. First, the precise and interval numbers and linguistic labels are compared, and then, the decision matrix is transformed into a prospect decision matrix on the basis of decision maker's aspiration level. Second, the Dempster-Shafer theory is applied to aggregate the prospect values of all alternatives on each attribute using their prospect belief intervals. Third, the orders of alternatives are obtained for all decision methods by comparing prospect belief intervals. Final, the effectiveness and feasibility of the proposed method are demonstrated by using an illustrative example. © 1990-2011 Beijing Institute of Aerospace Information.

关键词： Decision theory Formal logic Probabilistic logics

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The climate impact of high seas shipping

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National Science Review 2023年第3期10卷 102-116页

作者： Yuze Li Peng Jia Shangrong Jiang Haijiang Li Haibo Kuang Yongmiao Hong Shouyang Wang Xueting Zhao Dabo Guan Questrom school of Business Boston University Collaborative Innovation Center for Transport Studies Dalian Maritime University school of Maritime Economics and management Dalian Maritime University school of Economics and management University of Chinese Academy of Sciences Academy of Mathematics and Systems Science Chinese Academy of Sciences Center for Forecasting Science Chinese Academy of Sciences school of entrepreneurship and management Shanghai Tech University Department of Earth System Science Tsinghua University school of International Development University of East Anglia

Strict carbon emission regulations are set with respect to countries’ territorial seas or shipping activities in exclusive economic zones to meet their climate change commitment under the Paris ***,no shipping policies on carbon mitigation are proposed for the world’s high seas regions,which results in carbon intensive shipping *** this paper,we propose a Geographic-based Emission Estimation Model(GEEM) to estimate shipping GHG emission patterns on high seas *** results indicate that annual emissions of carbon dioxide equivalent(CO2-e) in shipping on the high seas reached 211.60 million metric tonnes in 2019,accounting for about one-third of all shipping emissions globally and exceeding annual GHG emissions of countries such as *** average emission from shipping activities on the high seas is growing at approximately 7.26% per year,which far surpasses the growth rate of global shipping emission at 2.23%.We propose implementation of policies on each high seas region with respect to the main emission driver identified from our *** policy evaluation results show that carbon mitigation policies could reduce emissons by 25.46 and 54.36 million tonnes CO2-e in the primary intervention stage and overall intervention stage,respectively,with 12.09% and 25.81% reduction rates in comparison to the2019 annual GHG emissions in high seas shipping.

关键词： high seas international shipping GHG emission policy evaluation emission drivers

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