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15篇 您的检索式:作者名="Ziyang Han"
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1Low-cost polymer acceptors with noncovalently fused-ring backbones for efficient all-polymer solar cells显示文摘The polymerization of fused-ring acceptors(FRAs) to afford their corresponding polymeric acceptors for high-performance all-polymer solar cells(all-PSCs) has achieved remarkable progress in the past few years.However,due to the high degree of synthetic complexity for the monomer,the high-cost of these polymeric acceptors may limit their commercial applications.Thus,it is urgent to develop inexpensive and high-performance polymeric acceptors for all-PSCs.Herein,two novel polymeric acceptors(PBTzO and PBTzO-2F) have been designed and synthesized by copolymerization of noncovalently fused ring acceptors(NFRAs),which were employed in all-PSCs for the first time.Upon introducing the “noncovalently conformational locks(NoCLs)” in the backbone and selective fluorination of the end-group,photophysical and electrical properties,and solidstate packing properties of the NFRAs have been rationally tuned.As a result,the PBDB-T:PBTzO-2F based devices presented an excellent power conversion efficiency(PCE) of 11.04%,much higher than that of PBTzO based ones due to the increased charge generation and extraction,improved hole transfer and carrier mobilities,and reduced energy loss.More importantly,PBTzO-2F exhibited a much lower synthetic complexity(SC) index and higher figure-of-merit(FOM) values than the high-performance fused-ring acceptor based polymer acceptors(FRA-PAs) due to the simpler structures and more effective synthesis.This contribution provided a novel idea to achieve low-cost and high-performance all-PSCs.Xiaobin Gu Yanan Wei Xingzheng Liu Na Yu Laiyang Li Ziyang Han Jinhua Gao Congqi Li Zhixiang Wei Zheng Tang Xin Zhang Hui Huang 2022Science China Chemistry2022,65,5:1
2Inverse design of metasurface optical filters using deep neural network with highdegrees of freedom显示文摘In order to obtain a metasurface structure capable of filtering light of a specific wavelength range in the visible band,the traditional methods usually traverse the space consisting of possible designs,searching for a potenti ally satisfactory structure by performing iterative calculations to solve Maxwell's equations.In this article,we propose a systematic method based on neural networks that can complete an inverse design process to solve the problem.Compared with the traditional methods,our method is much faster while competent to encom-pass a high degree of freedom to generate device structures,which can ensure that the spectra of generated structures resemble the desired ones.Xiao Han Ziyang Fan Zeyang Liu Chao Li L.Jay Guo 2021InfoMat2021,3,4:1
3Author Correction:Regulation of CD8^(+)T memory and exhaustion by the mTOR signals显示文摘Correction to:Cellular&Molecular Immunology http://gffzzd3cc09b8251d45dfs59k6oof09co06nxk.ffgz.tsg.suse.edu.cn/10.1038/s41423-023-01064-3,published online 15 August 2023 In this article the author name Yuheng Han was incorrectly written as Yuhen Han.The original article has been corrected.Yao Chen Ziyang Xu Hongxiang Sun Xinxing Ouyang Yuheng Han Haihui Yu Ningbo Wu Yiting Xie Bing Su 2023Cellular & Molecular Immunology2023,20,11:0
4Self-assembled interlayer aiming at the stability of NiOx based perovskite solar cells显示文摘Inorganic NiO_(x) based inverted structure perovskite solar cells (PSCs) is reported to be more stable than that with the organic hole transport materials.In this work,NiO_(x)/MAPbI_(3) interface chemical reaction induced instability of perovskite is unveiled:Ni^(3+) and I^(-) exhibit redox reactions and deprotonation of MA^(+) happens,which result in interface defects and perovskite lattice deformation.Thus the defective interface accelerates the degradation of perovskite by defect pathways from the bottom interface to the perovskite surface contacting H_(2)O/O_(2).Self-assembled interlayer of NH_(2)^(-)end silane on NiO_(x)separates the reactive NiO_(x)and MAPbI_(3),tunes the interface energy states by–NH_(2) end group.As a result,the PSC based on the silane treated NiO_(x)achieves enhanced PCE of 20.1%with decent stability under environmental and extreme conditions (high temperature,high humidity,light infiltration).Our work highlights the interface chemical problem induced PSC instability and a simple interface modification to achieve the stable PSCs.Tonghui Guo Zhi Fang Zequn Zhang Zhiqiang Deng Rui Zhao Jing Zhang Minghui Shang Xiaohui Liu Ziyang Hu Yuejin Zhu Liyuan Han 2022Journal of Energy Chemistry2022,31,6:0
5An In-Situ Formed Tunneling Layer Enriches the Options of Anode for Efficient and Stable Regular Perovskite Solar Cells显示文摘Perovskite solar cells(PSCs)are taking steps to commercialization.However,the halogen-reactive anode with high cost becomes a stumbling block.Here,the halogen migration in PSCs is utilized to in situ generate a uniform tunneling layer between the hole transport materials and anodes,which enriches the options of anodes by breaking the Schottky barrier,enabling the regular PSCs with both high efficiency and stability.Specifically,the regular PSC that uses silver iodide as the tunneling layer and copper as the anode obtains a champion power conversion efficiency of 23.24%(certified 22.74%)with an aperture area of 1.04 cm^(2).The devices are stable,maintaining 98.6%of the initial effi-ciency after 500 h of operation at the maximum power point with continuous 1 sun illumination.PSCs with different tunneling layers and anodes are fabricated,which confirm the generality of the strategy.Xuesong Lin Yanbo Wang Hongzhen Su Zhenzhen Qin Ziyang Zhang Mengjiong Chen Min Yang Yan Zhao Xiao Liu Xiangqian Shen Liyuan Han 2023Nano-Micro Letters2023,15,1:0
6Difference in calcium ion precipitation between free and immobilized Halovibrio mesolongii HMY2显示文摘Biomineralization has become a research focus in wastewater treatment due to its much lower costs compared to traditional methods.However,the low sodium chloride(NaCl)-tolerance of bacteria limits applications to only water with low NaCl concentrations.Here,calcium ions in hypersaline wastewater(10%NaCl)were precipitated by free and immobilized Halovibrio mesolongii HMY2 bacteria and the differences between them were determined.The results show that calcium ions can be transformed into several types of calcium carbonate with a range of morphologies,abundant organic functional groups(C-H,C-O-C,C=O,etc),protein secondary structures(β-sheet,α-helix,3_(10)helix,andβ-turn),P=O and S-H indicated by P2p and S2p,and more negativeδ^(13)C_(PDB)(‰)values(-16.8‰to-18.4‰).The optimal conditions for the immobilized bacteria were determined by doing experiments with six factors and five levels and using response surface method.Under the action of two groups of immobilized bacteria prepared under the optimal conditions,by the 10^(th)day,Ca^(2+)ion precipitation ratios had increased to 79%-89%and 80%-88%with changes in magnesium ion cencentrations.Magnesium ions can significantly inhibit the calcium ion precipitation,and this inhibitory effect can be decreased under the action of immobilized bacteria.Minerals induced by immobilized bacteria always aggregated together,had higher contents of Mg,P,and S,lower stable carbon isotope values and less well-developed protein secondary structures.This study demonstrates an economic and eco-friendly method for recycling calcium ions in hypersaline wastewater,providing an easy step in the process of desalination.Huaxiao Yan Meiyu Huang Jihan Wang Heding Geng Xiyu Zhang Ziyang Qiu Yongliang Dai Zuozhen Han Yudong Xu Long Meng Lanmei Zhao Maurice E.Tucker Hui Zhao 2022Journal of Environmental Sciences2022,34,12:0
7Combination of S…N and S…Cl Noncovalently Conformational Locks for Constructing High-Planarity and Low-Cost Nonfused-Ring Electron Acceptors显示文摘Comprehensive Summary By employing thiazole and 4-chlorothiazole as the A′units,two A-D-A′-D-A type nonfused-ring electron acceptors(NFREAs)Tz-H and Tz-Cl were designed and synthesized.Replacing thiazole in Tz-H with 4-chlorothiazole can not only remarkably shorten the synthetic route through C—H direct arylation but also enhance molecular planarity with the simultaneous incorporation of S…N and S…Cl noncovalently conformational locks(NoCLs).The photovoltaic devices based on PM6:Tz-Cl exhibited a power conversion efficiency as high as 11.10%,much higher than that of PM6:Tz-H(6.41%),mainly due to more efficient exciton dissociation,better and more balanced carrier mobility,less charge recombination,and more favorable morphology.These findings demonstrate the great potential of NoCLs in achieving low-cost and high-performance NFREAs.Ziyang Han Congqi Li Xiaobin Gu Xiao Han Sixuan Wang Yanan Wei Jinhua Gao Zhixiang Wei Yunhao Cai Xin Zhang Hui Huang 2023Chinese Journal of Chemistry2023,41,15:0
8Effects of Added Mass on Muscle Activity and Joint Movement During Walking显示文摘Added mass provided irregular interference towards human movement and shifted the force generated by lower limb muscles.However,the association between mass and muscle activities is not well recognized.Our study aims at investigating the influence of added mass on lower limbs.In our study,five young,healthy walkers performed walking trials under three load conditions(unload;C1:0.25 pounds on feet,1 pound on calves,and 2 pounds on thighs;C2:1 pound on feet,2 pounds on calves,and 4 pounds on thighs).During walking,three-dimensional kinematics,sEMG signals,and oxygen consumption were collected which allowed us to understand the effects of added mass on muscles.We also generated OpenSim simulation,designed to comprehend the relationship between added mass and muscles.With the increase of added mass,maximum sEMG signal and peak joint torque increased;whereas,the horizontal stride time reduced(unload:1.697±0.02 s,C1:1.651±0.02 s,C2:1.622±0.02 s).Energy expenditure raised correspondingly(C1:6.53%,C2:24.85%).Moreover,joint moment increased,while same change occurred in muscle force.Overall,our results show that participants responded positively to additional mass by adjusting muscle activities,joint movement,and stride frequency,which demonstrates the relationship between energy consumption and added mass.Yali Han Frank C.Sup IV Ziyang Han Zhangzhang Mi 2023Journal of Bionic Engineering2023,20,6:0
9ALDOB介导的果糖代谢促进肠癌肝转移的代谢重编程显示文摘文章简介各类恶性肿瘤中结直肠癌新生发病率(10.2%)位居第三,致死率(9.2%)位居第二。肠癌转移后5年存活率小于10%,是造成肠癌患者死亡的主要原因,也是肠癌治疗的困难所在。肝脏是肠癌主要的转移器官,大约70%转移向肝脏。那么肠癌细胞转移到肝脏以后.卜鹏程 Kai-Yuan Chen Kun Xiang Christelle Johnson Scott B.Crown Nikolai Rakhilin Yiwei Ai Lihua Wang Rui Xi Inna Astapova Yan Han Jiahe Li Bradley B.Barth Min Lu Ziyang Gao Robert Mines Liwen Zhang Mark Herman David Hsu Guo-Fang Zhang Xiling Shen 2019科学新闻2019,0,2:0
10Recognizing the orbital angular momentum(OAM)of vortex beams from speckle patterns显示文摘The orbital angular momentum(OAM)of vortex beams offers a new degree for information encoding,which has been applied to optical communications.OAM measurement is essential for these applications,and has been realized in free space by several methods.However,these methods are inapplicable to estimate the OAM of vortex beams directly from the speckle patterns in the exit end of a multimode fiber(MMF).To tackle this issue,we design a convolutional neural network(CNN)to realize 100%accuracy recognition of two orthogonally polarized OAM modes from speckle patterns.Moreover,we demonstrate that even when the speckle patterns are cropped to only 1/64 of the original patterns,the recognition accuracy of the designed neural network is still higher than 98%.We also study the recognition accuracy of cropped speckles in different areas of speckle patterns to verify the feasibility of OAM recognition after cropping.The results demonstrate that recognizing the OAMs of two orthogonally polarized vortex beams from only a portion of speckle patterns in the exit end of an MMF is feasible,offering the potential to construct a 1×N data transmission scheme.Zhiyuan Wang Xuetian Lai Huiling Huang Xiaoyan Wang Haoran Li Ziyang Chen Jun Han Jixiong Pu 2022Science China(Physics,Mechanics & Astronomy)2022,65,4:0
11Insight into the efficiency-stability-cost balanced organic solar cell based on a polymerized nonfused-ring electron acceptor显示文摘Organic solar cells(OSCs)have attracted extensive attention from both academia and industry in recent years due to their remarkable improvement in power conversion efficiency(PCE).However,the Golden Triangle(the balance of efficiency-stability-cost)required for large-scale industrialization of OSCs still remains a great challenge.Here,a new nonfused-ring electron acceptor(NFREA)BF and its polymerized counterpart PBF were designed and synthesized,and their photovoltaic performance,storage stability and material cost were systematically investigated.When blended with a widely-used polymer donor PBDB-T,the PBFbased all-polymer solar cell(all-PSC)displayed a record high PCE of 12.61%for polymerized NFREAs(PNFREAs)with an excellent stability(95.2%of initial PCE after 800 h storage),superior to the BF counterpart.Impressively,PBF-based allPSC possesses the highest industrial figure-of-merit(i-FOM)value of 0.309 based on an efficiency-stability-cost evaluation,in comparison to several representative OSC systems(such as PM6:Y6 and PBDB-T:PZ1).This work provides an insight into the balance of efficiency,stability,and cost,and also indicates that the PNFREAs are promising materials toward the commercial application of OSCs.Xiaobin Gu Yanan Wei Guanyu Lu Ziyang Han Di Zheng Guanghao Lu Jianqi Zhang Zhixiang Wei Yunhao Cai Xin Zhang Hui Huang 2023Aggregate2023,4,6:0
12Co-alteration of Myc and RTK-RAS pathways defines a liver-metastatic propensity and immune-cold subgroup of pancreatic adenocarcinoma显示文摘Co-altered pathways refer to the phenomenon where multiple biological pathways exhibit aberrant changes simultaneously within the same tumor sample.This phenomenon can facilitate a better understanding of the mechanism and evolution of tumors and serve as a biological marker for diagnosing,classifying,and treating tumors.1 However,the nature of alteration occurrence and the impact on pancreatic adenocarcinoma(PAAD)remain elusive.The SELECT algorithm was originally designed to systematically assess the evolutionary dependencies and their impact between altered genes in cancer for anticipating drug resistance and proposing alternative strategies.Here,to better characterize the etiology of PAAD and develop an improved risk assessment strategy,2 by utilizing SELECT,we identified a co-altered pathway subgroup of PAAD that demonstrated an elevated risk for unfavorable prognosis,a propensity for liver metastasis,and an immunologically cold microenvironment.Yuyuan Zhang Ziyang Zu Hui Xu Siyuan Weng Yuqing Ren Quan Cheng Peng Luo Jian Zhang Zaoqu Liu Xinwei Han 2024Genes & Diseases2024,11,3:0
13Investigation of GhFAT Genes Related to Seed Oil Content and Fatty Acid Composition in Gossypium hirsutum L.显示文摘Fatty Acyl-ACP thioesterase(FAT)is a key enzyme controlling oil biosynthesis in plant seeds.FATs can be divided into two subfamilies,FATA and FATB according to their amino acid sequences and substrate specificity.The Upland cotton genome contains 20 GhFAT genes,amongst which 6 genes were of the GhFATA subfamily and 14 of the GhFATB subfamily.The 20 GhFAT genes are unevenly distributed on 14 chromosomes.The GhFATA genes have 5 or 7 exons and the GhFATB genes have 6 or 7 exons.All GhFAT proteins have the conserved Acyl-ACP_TE domain and PLN02370 super family,the typical characteristics of plant thioesterases.Analyses of the expression level of GhFATs and the compositions of fatty acid in 5-60 days-post-anthesis seeds showed that the ratio of saturated fatty acids to unsaturated fatty acids was consistent with the expression profile of GhFATB12,GhFATB3,and GhFATB10;the ratio of monounsaturated fatty acid to polyunsaturated fatty acids was consistent with the expression profile of GhFATA3.The oil contents of mature cottonseeds were positively correlated with the contents of palmitic acid and linolenic acid as well as seed vigor.These results provide essential information for further exploring the role(s)of the specific GhFATs in determining oil biosynthesis and cottonseed compositions.Ziyang Feng Xinqi Cheng Tianwen Wang Yongchao Han Haihong Chen Xinyu Zhang Jie Sun Wei Zhang Feng Liu 2023Phyton-International Journal of Experimental Botany2023,92,5:0
14Regulation of CD8^(+)T memory and exhaustion by the mTOR signals显示文摘CD8^(+)T cells are the key executioners of the adaptive immune arm,which mediates antitumor and antiviral immunity.Naïve CD8^(+)T cells develop in the thymus and are quickly activated in the periphery after encountering a cognate antigen,which induces these cells to proliferate and differentiate into effector cells that fight the initial infection.Simultaneously,a fraction of these cells become long-lived memory CD8^(+)T cells that combat future infections.Notably,the generation and maintenance of memory cells is profoundly affected by various in vivo conditions,such as the mode of primary activation(e.g.,acute vs.chronic immunization)or fluctuations in host metabolic,inflammatory,or aging factors.Therefore,many T cells may be lost or become exhausted and no longer functional.Complicated intracellular signaling pathways,transcription factors,epigenetic modifications,and metabolic processes are involved in this process.Therefore,understanding the cellular and molecular basis for the generation and fate of memory and exhausted CD8^(+)cells is central for harnessing cellular immunity.In this review,we focus on mammalian target of rapamycin(mTOR),particularly signaling mediated by mTOR complex(mTORC)2 in memory and exhausted CD8^(+)T cells at the molecular level.Yao Chen Ziyang Xu Hongxiang Sun Xinxing Ouyang Yuheng Han Haihui Yu Ningbo Wu Yiting Xie Bing Su 2023Cellular & Molecular Immunology2023,20,9:0
15A Preliminary Study on Cold Tolerance in Cinnamomum japonicum Sieb. at Different Ages显示文摘[Objective]This study aimed to further expand the production and application of Cinnamomum japonicum Sieb.and investigate the mechanism of cold resistance in evergreen broad-leaved tree species.[Method]Using adult Cinnamonum campora as control,during the entire wintering period from October 2011 to March 2012,the wintering adaptability of C.japonicum leaves at different ages was observed;the electrolyte leakage was measured under indoor low-temperature treatment to calculate the semi-lethal temperature(LT50)by fitting Logistic equation,thus conducting dynamic analysis and comprehensive evaluation of the cold resistance in C.japonicum.[Result]The results showed that the chilling injuries in leaves of different materials were aggravated with the decreasing temperature.According to the results of five times of dynamic observation on wintering adaptability,the cold resistance in different materials presented a decreasing order of adult C.japonicum>medium-aged C.japonicum>young C.japonicum>adult C.campora.The relationship between indoor low temperature and leaf injury rate showed an S-shaped curve.The significance test suggested relatively high fitting degree with Logistic equation.The semi-lethal temperature presented a V-shaped curve with the changing temperature and reached the minimum during late December to early February in the following year.The dynamic changes and minimum value of semi-lethal temperature indicated a consistent order of cold resistance in different materials to the results of wintering adaptability observation.Therefore,results of two analysis methods could be combined for cold resistance evaluation.[Conclusion]This study laid the foundation for the introduction and popularization of C.japonicum in northern gardens along the Yangtze River.Dongqin ZHOU Yuwu XIONG Zhiguo LU Luwan HAN Ziyang WANG Yunlong YIN 2013Agricultural Biotechnology2013,2,6:0
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