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Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan Han Qifeng Han Yi‑Bing Cheng yong peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

低负荷血流限制和高强度抗阻运动对男性运动青年大腿微循环功能的影响

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中国组织工程研究 2025年第2期29卷 393-401页

作者：彭永胡江平朱欢湖北民族大学体育学院湖北省恩施市445000 广西民族师范学院体育学院广西壮族自治区崇左市532200

背景:微循环作为人体物质能量代谢交换的唯一场所,与人体运动能力密切相关。抗阻运动是提高微循环功能的有效方式,但也有研究指出血流限制训练也能提高微循环功能,且具有负荷小和安全性高等优点。目的:比较6周低负荷血流限制运动、高强... 详细信息

背景:微循环作为人体物质能量代谢交换的唯一场所,与人体运动能力密切相关。抗阻运动是提高微循环功能的有效方式,但也有研究指出血流限制训练也能提高微循环功能,且具有负荷小和安全性高等优点。目的:比较6周低负荷血流限制运动、高强度抗阻运动对运动型男性青年大腿微循环功能的影响,并从血管内皮功能角度探讨运动改善微循环功能的可能机制。方法:将湖北民族大学60名体育专业男性大学生按照随机数表法分为对照组、高强度抗阻运动组和低负荷血流限制运动组,每组20人。低负荷血流限制运动组进行6周(每周3次、每次90 min、运动强度为30%1RM)的低负荷血流限制运动;高强度抗阻运动组进行6周(每周3次、每次90 min、运动强度为70%1RM强度)的抗阻训练;对照组该时间段不进行任何形式的运动训练。分别在干预开始的前1 d以及6周干预结束后次日的晨起空腹状态下对3组受试者微血管血流灌注量、经皮氧分压、肌氧饱和度、一氧化氮、内皮型一氧化氮合酶、内皮素1、血管内皮细胞生长因子及大腿围、肌力等指标进行测试。结果与结论:①运动干预后,低负荷血流限制运动组和高强度抗阻运动组的微血管血流灌注量加热值、血细胞移动速度加热值与对照组及运动干预前相比有显著差异(P<0.05);低负荷血流限制运动组微血管血流灌注量加热值、血细胞移动速度加热值与高强度抗阻运动组相比有显著差异(P<0.05);经皮氧分压和肌氧饱和度与干预前相比有显著性差异(P<0.05)。②运动干预后,低负荷血流限制运动组和高强度抗阻运动组一氧化氮、内皮型一氧化氮合酶、内皮素1、血管内皮细胞生长因子与对照组及运动干预前相比有显著差异(P<0.05)。③运动干预后,低负荷血流限制运动组和高强度抗阻运动组大腿围和大腿肌肉力量与运动干预前相比有显著差异(P<0.05)。④上述结果证实,6周低负荷血流限制运动和高强度抗阻运动可能通过调节内皮型一氧化氮合酶、内皮素1、血管内皮细胞生长因子等血管因子的分泌,提高体育专业大学生大腿微循环功能,并增加大腿肌肉的收缩力量,且低负荷血流限制运动对微血管血流灌注量、血细胞移动速度的干预效果更佳,因此低负荷血流限制运动较高强度抗阻运动在提高微循环功能方面更具优势。

关键词：低负荷血流限制高强度抗阻微循环功能肌肉力量微血管血流灌注量经皮氧分压肌氧饱和度一氧化氮内皮素1 血管内皮生长因子

Experimental Study of Air Layer Drag Reduction with Bottom Cavity for A Bulk Carrier Ship Model

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China Ocean Engineering 2019年第5期33卷 554-562页

作者： WU Hao OU yong-peng Key Laboratory of High Performance Ship Technology (Wuhan University of Technology) Ministry of Education Wuhan 430063 China School of Transportation Wuhan University of Technology Wuhan 430063 China College of Naval Architecture and Ocean Engineering Naval University of Engineering Wuhan 430033 China

Air lubrication by means of a bottom cavity is a promising method for ship drag reduction. The characteristics of the bottom cavity are sensitive to the flow field around the ship hull and the effect of drag reduction, especially the depth of the bottom cavity. In this study, a ship model experiment of a bulk carrier is conducted in a towing tank using the method of air layer drag reduction (ALDR) with different bottom cavity depths. The shape of the air layer is observed, and the changes in resistance are measured. The model experiments produce results of approximately 20% for the total drag reduction at the ship design speed for a 25-mm cavity continuously supplied with air at Cq = 0.224 in calm water, and the air layer covers the whole cavity when the air flow rate is suitable. In a regular head wave, the air layer is easily broken and reduces the drag reduction rate in short waves, particularly when λ/Lw1 is close to one;however, it still has a good drag reduction effect in the long waves.

关键词： air layer drag reduction bulk carrier model test depth of cavity air layer shape

Multi-reservoir joint operating rule in inter-basin water transfer-supply project

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Science China(Technological Sciences) 2015年第1期58卷 123-137页

作者： peng AnBang peng yong ZHOU HuiCheng ZHANG Chi School of Hydraulic Engineering Dalian University of Technology

The joint operation of inter-basin water transfer-supply(IBWTS)project can be more complex when there is joint water demand in multi-reservoir system and multi-importing reservoirs simultaneously transferring water from exporting *** this study,a joint operating rule is proposed for the purpose of solving such complex operation *** rule is composed of a set of sub-rules,including hedging rule curves of virtual aggregation reservoir(*** reservoir)and other individual reservoirs,water-transfer rule curves of each individual reservoir,as well as some of important assisted *** assisted rules refer to allocation models for water *** the proposed rule,an equivalent reservoir is established to determine under what condition the water supply should be reduced and specify the total supplied water for joint water demand(*** method).Allocation models are developed to distribute the total transferred water into each importing reservoir and determine the water releases for joint water demand by each member reservoir of the aggregation system(*** method).And these models are integrated with a set of influence factors such as hydrologic characteristics,reservoir storage or vacant storage,regulating ability,water-supply pressure,and so *** aggregation of multi-reservoirs and the disaggregation of water quantities are taken into a whole consideration to reduce the complexity in reallocation of water target storage or water ***,the proposed rule is applied to the North-line IBWTS Project in Liaoning Province,*** results indicate that the proposed rule can take full advantage of hydrologic compensation in basins and capacity compensation in *** it can improve the utilization efficiency of water resources in system.

关键词： inter-basin water transfer joint operating rule equivalent reservoir water-transfer allocation water-supply allocation

Denitrification potential enhancement by addition of external carbon sources in a pre-denitrification process

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Journal of Environmental Sciences 2007年第3期19卷 284-289页

作者： peng yong-zhen MA yong WANG Shu-ying School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering Beijing University of Technology Beijing 100022 China

The aim of this study is to investigate the denitrification potential enhancement by addition of external carbon sources and to estimate the denitrification potential for the predenitrification system using nitrate utilization rate （NUR） batch tests. It is shown that the denitrification potential can be substantially increased with the addition of three external carbon sources, i.e. methanol, ethanol, and acetate, and the denitrification rates of ethanol, acetate, and methanol reached up to 9.6, 12, and 3.2 mgN/（g VSS.h）, respectively, while that of starch wastewater was only 0.74 mgN/（g VSS,h）. By comparison, ethanol was found to be the best external carbon source. NUR batch tests with starch wastewater and waste ethanol were carried out. The denitfification potential increased from 5.6 to 16.5 mg NO3-N/L owing to waste ethanol addition. By means of NUR tests, the wastewater characteristics and kinetic parameters can be estimated, which are used to determine the denitrification potential of wastewater, to calculate the denitrification potential of the plant and to predict the nitrate effluent quality, as well as provide information for developing carbon dosage control strategy.

关键词： predenitrification process external carbon addition ethanol denitrification potential

Basin flood control system risk evaluation based on variable sets

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Science China(Technological Sciences) 2017年第1期60卷 153-165页

作者： peng yong CHU JingGang XUE ZhiChun Department of Water Resources China Institute of Water Resources and Hydropower Research Beijing 100038 China

Flood control system risk evaluation is an effective measure for flood risk management and *** order to make better flood risk decisions and thereby improve social and economic benefits,the flood control risk evaluation index system should be built to quantify and normalize flood risk effectively and *** the current evaluation index has the binary miscibility characteristic of fuzziness and clarity,this paper establishes a new flood control system risk evaluation method based on the theory of variable sets(VS).Through a comparison of flood control risk evaluation with variable fuzzy sets(VFS) in the same basin flood control system risk evaluation,it is revealed that the new method,i.e.,flood control risk evaluation with variable fuzzy/clear mixture sets(variable sets),will be reasonable in all ***,in one case study,i.e.,the flood control system risk evaluation of Fengman Reservoir Basin,which is located in the southeast central of Jilin Province in China,the risk evaluation levels for each county in the basin as well as the whole flood risk distribution map of the basin could be provided with the new *** provides useful information for basin flood control planning and design.

关键词： variable sets (VS) flood control system risk evaluation evaluation indices flood control risk distribution map

A tRF oligomerizes Nucleolin to stabilize metastasis-favoring transcripts

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Science China(Life Sciences) 2023年第3期66卷 646-648页

作者： Jiawei Guo yong peng Laboratory of Molecular Oncology Frontiers Science Center for Disease-related Molecular Network State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University

Apart from bringing amino acids to ribosomes for protein biogenesis,transfer RNA(t RNA)can be cleaved into small non-coding RNAs,named as t RFs or ts *** small RNA fragments were firstly thought as random degradation products of t RNAs until the induction of certain t RFs were observed in specific stress conditions(Li et al.,2008).

关键词： metastasis bringing

Experimental Investigation of the Mg–Zn–Zr Isothermal Section at 400 °C

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Acta Metallurgica Sinica(English Letters) 2019年第4期32卷 426-432页

作者： yong-peng Liang Shu-Hong Liu Kai Xu yong Du State Key Lab of Powder Metallurgy Central South University School of Materials Science and Engineering Central South University

Mg-Zn-Zr series Mg alloys(ZK) are one of the most important commercial Mg alloys due to their good comprehensive mechanical properties. The phase equilibria of the Mg-Zn-Zr system at 400 ℃ covering the overall composition range were investigated by X-ray diffraction and electron probe microanalyses on thirteen ternary alloys. Three ternary compounds, τ_1, τ_2 and τ_3, were detected to be thermodynamically stable at 400 ℃, and their homogeneity range was determined to be Mg_((7-17))Zn_((80-88))Zr_((4-6)), Mg_((15-22))Zn_((66-65))Zr_((9-16)) and Mg_9 Zn_(68)Zr_(23)(in at.%), respectively. Eight three-phase regions and four two-phase regions were observed. The maximum solubility of Mg in Zn_(22) Zr, Zn_(39) Zr_5 and Zn_3 Zr phases was measured to be 0.52, 0.37 and 0.99 at.%, respectively, while the solubility of Zr in MgZn_2 and Mg_2 Zn_3 phases is negligible. The isothermal section of the Mg-Zn-Zr system at 400 ℃ was then constructed based on the present experimental data.

关键词： Mg–Zn–Zr Isothermal section Phase equilibria Ternary compounds

Controlled Polymerization of Methyl Methacrylate and Styrene via Cu(0)-Mediated RDRP by Selecting the Optimal Reaction Conditions

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Chinese Journal of Polymer Science 2019年第6期37卷 591-597页

作者： yong-peng Miao Jing Lyu Hai-Yang yong Sigen A yong-Sheng Gao Wen-Xin Wang School of Materials Science and Engineering Tianjin University Charles Institute of Dermatology School of Medicine University College Dublin School of Mechanical and Materials Engineering University College Dublin

Cu(0)-mediated reversible deactivation radical polymerization(Cu(0)-mediated RDRP) has been demonstrated as an excellent technique to control the polymerization of multiple vinyl monomers(e.g., acrylates, methacrylates, and styrene). However, the complexity of the reaction mechanism and multi-component system nature make it challenging to choose the appropriate conditions and consider the factors of achieving controllable polymerization when switching from one monomer to others with different reactivities. Herein, by polymerizing two examplary monomers: methyl methacrylate(MMA) and styrene via Cu(0)-mediated RDRP under different conditions,we have found that the reaction parameters(e.g., initiator, ligand, solvent, and deactivator) play a crucial role in regulating two equilibriums:(i) mutual conversion of different copper species which determines the relative concentration of Cu(Ⅰ) and Cu(Ⅱ), and(ii)polymerization equilibrium which is the combination of activation/deactivation, propagation and termination processes. We have demonstrated that by taking both the mutual conversion of different copper species and the polymerization equilibrium into account, the optimal reaction conditions could be selected, and the well-controlled Cu(0)-mediated RDRPs of methyl methacrylate and styrene were achieved with narrow molecular weight distributions and predicted molecular weight.

关键词： Cu(0)-mediated RDRP Reaction parameters Polymerization equilibrium Mutual conversion of copper species