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| 1 | Discussion on Type-I Fuzzy Boundary and Research on Boundary Definition ofHigh Order Fuzzy Region显示文摘 | Guo Jifa Cui Tiejun | 2012 | Telkomnika Indone- sian Journal of Electrical Engineering2012,10,6: | 1 |
| 2 | Highly efficient solution-processed organic photovoltaics enabled by improving packing behavior of organic semiconductors显示文摘Solution processability is a unique property of organic semiconductors. The compact and regular π-π stacking between molecules is paramount in the performance of organic optoelectronic devices. However, it is still a challenge to improve their stacking quality without sacrificing the solution-processability from the aspect of materials design. Here, delicately engineered additives are presented to promote the formation of ordered aggregation of conjugated molecules by regulating their nucleation and growth dynamics. Intriguingly, the long-chain BTP-eC9-4F molecules can realize ordered aggregation comparable to short-chain ones without sacrificing processability. The domain size of BTP-eC9-4F aggregation is enlarged from 24.2 to 32.2 nm in blend films.Thereby exciton diffusion and charge transport become faster, contributing to the suppression of recombination losses. As a result, a power conversion efficiency of 19.2% is achieved in D18:BTP-eC9-4F based organic photovoltaics. Our findings demonstrate a facile strategy to improve the packing quality of solution-processed organic semiconductors for high-efficiency photovoltaics and beyond photovoltaics. | Xinyue Cui Hongxiang Li Hao Lu Yuqiang Liu Guangliu Ran Rui Liu Huarui Zhang Xueqing Ma Dawei Li Yi Lin Jifa Yu Wenkai Zhang Lei Cai Yahui Liu Pei Cheng Andong Zhang Zaifei Ma Guanghao Lu Zhishan Bo | 2024 | Science China Chemistry2024,67,3: | 0 |
| 3 | Ice storm damage to oak forests in subtropical China显示文摘Ice storms,as important sources of frequent and injurious disturbances,drive forest dynamics in the Northern Hemisphere.However,stand-level differential vulnerability to ice storms and the associated factors that predispose forest stands remain unclear.This is particularly concerning in the subtropics where the frequency of ice storms is predicted to increase with global warming.Here we assessed how the impact on three forest stands(early and late secondary-growth forests,and old-growth forests)differed after an extreme ice storm during 20–21 March 2022,and identified the abiotic and biotic factors that determine the damage intensity in the Shennongjia World Natural Heritage Site,a biodiversity conservation hotspot in central China.We found a stand-specific‘middomain effect’where the late secondary-growth forest sustained the most severe damage,the early secondarygrowth forest sustained the least,and the old-growth forest suffered an intermediate amount.‘Crown broken’was the most severe damage type across all three forest stands,although the proportion of‘branch broken’was also high in the old-growth forest.Topography played a significant role in determining the vulnerability of the early secondary-growth forest to severe ice storms whereas the forest structure and composition were important factors in explaining the damage rates in the old-growth forest,although they differed among the damage categories.In contrast,topography,forest structure and composition generally explain the intensity of damage in the late secondary-growth forests.Our results highlight that,in subtropical forests,the intensity of damage caused by severe ice storms and related determining factors are stand-level dependent.We also suggest exploring potential management strategies(e.g.,slow-growing hardwood species that can resist storms should be the main species for reforestation in early secondary-growth forests)to mitigate the risk of future severe ice storms,as well as other wind-related climatic extremes. | Jinyu Guo Jifa Cui Nan Wu Yaqian Zhang Jie Wang Hanyu Xiang Baoshuang Hu Youbing Zhou | 2023 | Forest Ecosystems2023,10,3: | 0 |
| 4 | Ecotourist trail-use affects the taxonomic, functional and phylogenetic diversity of mammals in a protected area: lessons for conservation management显示文摘Ecotourism,by definition,aims to engage peoples’interest in wildlife and the environment.The use of tourist roads and trails to access sites within protected areas(PAs)can detrimentally affect the behavior and distribution of species.The way mammals respond to anthropogenic pressures may differ across taxonomic,functional,and phy-logenetic groups;nevertheless,how ecotourist trail-use affects these different diversity remains under-investigated.Here,we assessed 6 metrics of taxonomic,phylogenetic,and functional diversity for a mammal community in a PA in central China,recording how Trail use(using Trail type as a proxy)and habitat variables affected sightings and signs of mammals across 60 replicate 0.5 km transects.We then examined how Trail use affected the taxonomic,functional,and phylogenetic diversity indices of species(>1 kg).Using generalized liner mixed modeling,we identified that more used trail types had a greater adverse effect on all diversity richness indices than did less used trail types.Consequently,tourist pressure was associated with a general tendency to homogenize the site’s mammal community.In contrast,the effects of Trail Types on all diversity evenness indices were non-significant.Further-more,more developed and more heavily used trail types had a greater,significant negative effect on taxonomic,functional,and phylogenetic richness,whereas these richness indices were unaffected by minor trail types,used less intensively.As a general principle,lower biodiversity indices reduce ecosystem resilience,and so it is vital to better understand these responses to balance public access against biodiversity management in PAs. | Boyu LEI Zhenfei ZHENG Jifa CUI Jin ZHAO Chris NEWMAN Youbing ZHOU | 2023 | Integrative Zoology2023,18,4: | 0 |