Achieving simultaneous enhancement of crystallinity and optimal domain size remains a fundamental challenge in organic photovoltaics(OPVs),where conventional crystallization strategies often trigger excessive aggregat...Achieving simultaneous enhancement of crystallinity and optimal domain size remains a fundamental challenge in organic photovoltaics(OPVs),where conventional crystallization strategies often trigger excessive aggregation of small-molecule acceptors.This work pioneers a kinetic paradigm for resolving the crystallinity-domain size trade-off in organic photovoltaics through dual-additive-guided stepwise crystallization.By strategically pairing 1,2-dichlorobenzene(o-DCB,low binding energy to Y6)and 1-fluoronaphthalene(FN,high binding energy),we achieve temporally decoupled crystallization control:o-DCB first mediates donor-acceptor co-crystallization during film formation,constructing a metastable network,whereupon FN induces confined Y6 crystallization within this framework during thermal annealing,refining nanostructure without over-aggregation.Morphology studies reveal that this synergy enhances crystallinity of(100)diffraction peaks by 21%–10%versus single-additive controls(o-DCB/FN alone),while maintaining optimal domain size.These morphological advantages yield balanced carrier transport(μh/μe=1.23),near-unity exciton dissociation(98.53%),and a champion power conversion efficiency(PCE)of 18.08%for PM6:Y6,significantly surpassing single-additive devices(o-DCB:17.20%;FN:17.53%).Crucially,the dual-additive strategy demonstrates universal applicability across diverse active layer systems,achieving an outstanding PCE of 19.27%in PM6:L8-BO-based devices,thereby establishing a general framework for morphology control in high-efficiency OPVs.展开更多
Objective:To explore the impact of systematic stepwise rehabilitation nursing intervention on the prognosis and disease uncertainty of patients with hypertensive intracerebral hemorrhage,and to provide feasible strate...Objective:To explore the impact of systematic stepwise rehabilitation nursing intervention on the prognosis and disease uncertainty of patients with hypertensive intracerebral hemorrhage,and to provide feasible strategies for clinical nursing.Methods:Eighty patients with hypertensive intracerebral hemorrhage admitted to our hospital from January 2023 to June 2025 were selected and randomly divided into an observation group(n=40,receiving systematic stepwise rehabilitation nursing)and a control group(n=40,receiving conventional nursing).The intervention effects were analyzed by comparing changes in the National Institutes of Health Stroke Scale(NIHSS)scores for neurological recovery,Short Form 36 Health Survey(SF-36)scores for quality of life,Exercise of Self-Care Agency Scale(ESCA)scores for self-management ability,compliance,and the Mishel Uncertainty in Illness Scale(MUIS)scores between the two groups.Results:All scores in the observation group were significantly better than those in the control group after the intervention(p<0.05).Specifically,the NIHSS scores decreased more significantly,the total SF-36 scores increased,the ESCA scores increased significantly,while the MUIS scores decreased significantly,and compliance improved markedly,indicating a reduction in disease uncertainty among patients.Conclusion:Systematic stepwise rehabilitation nursing intervention can significantly improve neurological recovery,quality of life,self-management ability,and compliance in patients with hypertensive intracerebral hemorrhage,while effectively reducing disease uncertainty.It is worthy of clinical promotion and application.展开更多
超高韧性水泥基材料(ultra high toughness cementitious composites,UHTCC)耐损伤能力强、裂缝控制能力好,具有超高的受压韧性及显著的受拉应变硬化特性。为提升钢框架结构的抗侧性能,分别将装配式RC、UHTCC抗侧力墙作为钢框架结构的...超高韧性水泥基材料(ultra high toughness cementitious composites,UHTCC)耐损伤能力强、裂缝控制能力好,具有超高的受压韧性及显著的受拉应变硬化特性。为提升钢框架结构的抗侧性能,分别将装配式RC、UHTCC抗侧力墙作为钢框架结构的抗侧力构件,进行足尺钢框架(STF)、钢框架-附加装配式RC抗侧力墙(SRCW)和钢框架-附加装配式UHTCC抗侧力墙(SHTCW)试件低周往复加载试验,对上述试件破坏模式、滞回性能、刚度、承载力、变形能力、应变及耗能性能等进行研究。试验表明,试件SHTCW、SRCW的峰值承载力相比于试件STF分别提高了25%和13%,抗侧力墙材料抗压强度值相近的情况下,试件SHTCW的峰值承载力较试件SRCW提高15%。相同加载位移角下,试件SHTCW的抗侧刚度及等效黏滞阻尼系数高于试件SRCW和STF,相比于RC抗侧力墙,UHTCC抗侧力墙具有更优异的抗侧性能及耗能能力,其与钢框架的变形协调能力更好。在试验研究基础上,采用OpenSees有限元程序,分别对STF、SRCW结构与SHTCW结构进行增量动力分析,相比于STF结构,SHTCW、SRCW结构各个性能水准的失效概率明显降低,倒塌储备系数分别提高了1.42和1.18倍,通过附加装配式UHTCC抗侧力墙,能够减轻地震荷载作用下钢框架结构的动力响应,有效提升钢框架结构抗震性能。展开更多
基金supported by the Shaanxi Provincial High level Talent Introduction Project(5113220044)the Shaanxi Outstanding Youth Project(2023-JC-JQ-33)+8 种基金the Youth Science and Technology Talent Promotion Project of Jiangsu Association for Science and Technology(TJ-2022-088)the Project funded by China Postdoctoral Science Foundation(2023TQ0273,2023TQ0274,2023M742833)the NationalNatural Science Foundation of China(62304181)the Natural Science Basic Research Program of Shaanxi(2023-JC-QN-0726,2025JC-YBQN-469)the GuangdongBasic and Applied Basic Research Foundation(2022A1515110286,2024A1515012538)the Basic Research Programs of Taicang(TC2024JC04)the Suzhou Science and Technology Development Plan Innovation Leading Talent Project(ZXL2023183)the Fundamental Research Funds for the Central Universities(G2022KY05108,G2024KY0605,G2023KY0601)and the Aeronautical Science Foundation of China(2018ZD53047).
文摘Achieving simultaneous enhancement of crystallinity and optimal domain size remains a fundamental challenge in organic photovoltaics(OPVs),where conventional crystallization strategies often trigger excessive aggregation of small-molecule acceptors.This work pioneers a kinetic paradigm for resolving the crystallinity-domain size trade-off in organic photovoltaics through dual-additive-guided stepwise crystallization.By strategically pairing 1,2-dichlorobenzene(o-DCB,low binding energy to Y6)and 1-fluoronaphthalene(FN,high binding energy),we achieve temporally decoupled crystallization control:o-DCB first mediates donor-acceptor co-crystallization during film formation,constructing a metastable network,whereupon FN induces confined Y6 crystallization within this framework during thermal annealing,refining nanostructure without over-aggregation.Morphology studies reveal that this synergy enhances crystallinity of(100)diffraction peaks by 21%–10%versus single-additive controls(o-DCB/FN alone),while maintaining optimal domain size.These morphological advantages yield balanced carrier transport(μh/μe=1.23),near-unity exciton dissociation(98.53%),and a champion power conversion efficiency(PCE)of 18.08%for PM6:Y6,significantly surpassing single-additive devices(o-DCB:17.20%;FN:17.53%).Crucially,the dual-additive strategy demonstrates universal applicability across diverse active layer systems,achieving an outstanding PCE of 19.27%in PM6:L8-BO-based devices,thereby establishing a general framework for morphology control in high-efficiency OPVs.
文摘Objective:To explore the impact of systematic stepwise rehabilitation nursing intervention on the prognosis and disease uncertainty of patients with hypertensive intracerebral hemorrhage,and to provide feasible strategies for clinical nursing.Methods:Eighty patients with hypertensive intracerebral hemorrhage admitted to our hospital from January 2023 to June 2025 were selected and randomly divided into an observation group(n=40,receiving systematic stepwise rehabilitation nursing)and a control group(n=40,receiving conventional nursing).The intervention effects were analyzed by comparing changes in the National Institutes of Health Stroke Scale(NIHSS)scores for neurological recovery,Short Form 36 Health Survey(SF-36)scores for quality of life,Exercise of Self-Care Agency Scale(ESCA)scores for self-management ability,compliance,and the Mishel Uncertainty in Illness Scale(MUIS)scores between the two groups.Results:All scores in the observation group were significantly better than those in the control group after the intervention(p<0.05).Specifically,the NIHSS scores decreased more significantly,the total SF-36 scores increased,the ESCA scores increased significantly,while the MUIS scores decreased significantly,and compliance improved markedly,indicating a reduction in disease uncertainty among patients.Conclusion:Systematic stepwise rehabilitation nursing intervention can significantly improve neurological recovery,quality of life,self-management ability,and compliance in patients with hypertensive intracerebral hemorrhage,while effectively reducing disease uncertainty.It is worthy of clinical promotion and application.
文摘超高韧性水泥基材料(ultra high toughness cementitious composites,UHTCC)耐损伤能力强、裂缝控制能力好,具有超高的受压韧性及显著的受拉应变硬化特性。为提升钢框架结构的抗侧性能,分别将装配式RC、UHTCC抗侧力墙作为钢框架结构的抗侧力构件,进行足尺钢框架(STF)、钢框架-附加装配式RC抗侧力墙(SRCW)和钢框架-附加装配式UHTCC抗侧力墙(SHTCW)试件低周往复加载试验,对上述试件破坏模式、滞回性能、刚度、承载力、变形能力、应变及耗能性能等进行研究。试验表明,试件SHTCW、SRCW的峰值承载力相比于试件STF分别提高了25%和13%,抗侧力墙材料抗压强度值相近的情况下,试件SHTCW的峰值承载力较试件SRCW提高15%。相同加载位移角下,试件SHTCW的抗侧刚度及等效黏滞阻尼系数高于试件SRCW和STF,相比于RC抗侧力墙,UHTCC抗侧力墙具有更优异的抗侧性能及耗能能力,其与钢框架的变形协调能力更好。在试验研究基础上,采用OpenSees有限元程序,分别对STF、SRCW结构与SHTCW结构进行增量动力分析,相比于STF结构,SHTCW、SRCW结构各个性能水准的失效概率明显降低,倒塌储备系数分别提高了1.42和1.18倍,通过附加装配式UHTCC抗侧力墙,能够减轻地震荷载作用下钢框架结构的动力响应,有效提升钢框架结构抗震性能。
