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1Thiolactone copolymer donor gifts organic solar cells a 16.72% efficiency显示文摘Since 1995,bulk-heterojunction organic solar cells consisting of one or two organic donors and one or two organic acceptors have been fighting for high power conversion efficiencies(PCEs)and good stability[1].Until recent years,this next-generation photovoltaic technology starts to offer decent PCEs,shedding the light on commercialization,and attracting great attention again[2-14].Compared w让h the continuously emerging highperformance nonfullerene acceptors,high-performance donors are rare.Ji Xiong Ke Jin Yufan Jiang Jianqiang Qin Tan Wang Jinfeng Liu Qishi Liu Haili Peng Xiongfeng Li Anxin Sun Xianyi Meng Lixiu Zhang Ling Liu Wenting Li Zhimin Fang Xue Jia Zuo Xiao Yaqing Feng Xiaotao Zhang Kuan Sun Shangfeng Yang Shengwei Shi Liming Ding 2019Science Bulletin2019,64,21:17
2Palmitoylation stabilizes PD-L1 to promote breast tumor growth显示文摘Dear Editor,PD-L1 is a well-known transmembrane protein, which is highly expressed on many types of cancer cells. By binding to its receptor PD-1 on T cells, PD-L1 significantly inhibits T cells activation and activity, and thus plays a pivotal role in driving the escape of tumor cells from immune surveillance.^1.Yi Yang Jung-Mao Hsu Linlin Sun Li-Chuan Chan Chia-Wei Li Jennifer L. Hsu Yongkun Wei Weiya Xia Junwei Hou Yufan Qiu Mien-Chie Hung 2019Cell Research2019,29,1:14
3TNF-α suppresses sweat gland differentiation of MSCs by reducing FTO-mediated m^6 A-demethylation of Nanog mRNA显示文摘An effect of inhibition of tumor necrosis factor-α(TNF-α)on differentiation of mesenchymal stromal cells(MSCs)has been demonstrated,but the exact mechanisms that govern MSCs differentiation remain to be further elucidated.Here,we show that TNF-αinhibits the differentiation of MSCs to sweat glands in a specific sweat gland-inducing environment,accompanied with reduced expression of Nanog,a core pluripotency factor.We elucidated that fat mass and obesity-associated protein(FTO)-mediated m^6 A demethylation is involved in the regulation of MSCs differentiation potential.Exposure of MSCs to TNF-αreduced expression of FTO,which demethylated Nanog m RNA.Reduced expression of FTO increased Nanog m RNA methylation,decreased Nanog m RNA and protein expression,and significantly inhibited MSCs capacity for differentiation to sweat gland cells.Our finding is the first to elucidate the functional importance of m^6 A modification in MSCs,providing new insights that the microenvironment can regulate the multipotency of MSCs at the post-transcriptional level.Moreover,to maintain differentiation capacity of MSCs by regulating m^6 A modification suggested a novel potential therapeutic target for stem cellmediated regenerative medicine.Yihui Wang Rui Wang Bin Yao Tian Hu Zhao Li Yufan Liu Xiaoli Cui Liuhanghang Cheng Wei Song Sha Huang Xiaobing Fu 2020Science China(Life Sciences)2020,63,1:9
4Reverse Genetic Identification of CRN1 and its Distinctive Role in Chlorophyll Degradation in Arabidopsis显示文摘Recent identification of NYE1/SGR1 brought up a new era for the exploration of the regulatory mechanism of Chlorophyll (Chl) degradation.Cluster analysis of senescence associated genes with putative chloroplast targeting sequences revealed several genes sharing a similar expression pattern with NYE1.Further characterization of available T-DNA insertion lines led to the discovery of a novel stay-green gene CRN1 (Co-regulated with NYE1).Chl breakdown was significantly restrained in crn1-1 under diversified senescence scenarios,which is comparable with that in acd1-20,but much more severe than that in nye11.Notably,various Chl binding proteins,especially trimeric LHCP II,were markedly retained in crn1-1 four days after dark-treatment,possibly due to a lesion in disassociation of protein-pigment complex.Nevertheless,the photochemical efficiency of PSII in crn1-1 declined,even more rapidly,two days after dark-treatment,compared to those in Col-0 and nye1-1.Our results suggest that CRN1 plays a crucial role in Chl degradation,and that loss of its function produces various side-effects,including those on the breakdown of Ch-protein complex and the maintenance of the residual photosynthetic capability during leaf senescence.Guodong Ren Qian Zhou Shouxin Wu Yufan Zhang Lingang Zhang Jirong Huang Zhenfei Sun Benke Kuai 2010Journal of Integrative Plant Biology2010,52,5:8
5Performance analysis of FFH / BPSK system with partial band noise jamming and channel estimation error in high-mobility wireless communication scenarios显示文摘In this paper,we analyze the bit error ratio(BER) of fast frequency hopping(FFH) system with binary phase shift keying(BPSK) in high-mobility wireless channels.By taking into account partial band noise jamming and channel estimation errors as Gaussian noise,both of maximal-ratio combining(MRC) and equal-gain combining(EGC) schemes are considered,and exact analytical BER expressions for MRC and EGC schemes are obtained.Especially,a closed-form BER expression for the MRC scheme is also presented in high signal-to-noise ratio region.Analytical and simulation results demonstrate that,the FFH/BPSK schemes suffer from performance degradation in the presence of channel estimation errors.The worst case jamming factor is shown to be inversely proportional to the signal to jamming ratio.With properly designed frequency hopping schemes and channel estimation schemes,the performance improvement is also observed as compared with the traditional noncoherent FFH/BFSK system.Yishan He Yufan Cheng Gang Wu Shaoqian Li 2014Chinese Science Bulletin2014,59,35:6
6Effects of confining pressure on acoustic emission and failure characteristics of sandstone显示文摘In this study,uniaxial and triaxial compression acoustic emission(AE)tests were implemented to investigate the AE effect and failure characteristics of sandstone under different confining pressures(σ3).The evolution of AE parameters in the rock failure process and fracture fractal dimension characteristics after failure were analyzed.The results revealed that the activity of the AE signal is strongly related toσ3.The evolution of the Ib value can be divided into the I-fluctuation,II-stability,and III-decrease stages.In the first stage,the Ib value of the AE was relatively high,and the AE energy was low.Then,the Ib value tended to be stable;however,the fluctuation amplitude decreased,and the AE energy rapidly increased.In the stage of decrease,the AE energy sharply increased before the load approached the peak value,and the Ib value significantly decreased and dropped to the lowest point before the peak value.Asσ3 increased,the rock’s failure mode changed from tensile failure to shear failure and became more coordinated.As the confining pressure increased,the shape dimension decreased,and the order degree of rock failure increased.The confining pressure exerted a certain control effect on the rock failure.Zhen Huang Qixiong Gu Yufan Wu Yun Wu Shijie Li Kui Zhao Rui Zhang 2021International Journal of Mining Science and Technology2021,31,5:6
7Physiological and subjective thermal responses to heat exposure in northern and southern Chinese people显示文摘When studying the thermal adaptation of building occupants,understanding the effects of different thermal experiences on adaptation is necessary,particularly for moderate and severe heat exposure.However,this area has seen limited research.Further,skin temperature,a common parameter for quantifying thermal sensation,may insufficiently reflect the automatic thermoregulation of the human body.This study investigates the effects of long-term heat exposure on the human body using multiple physiological and subjective indexes.Two heat exposure experiments were conducted on healthy male participants from northern and southern China.Participant responses,including skin temperature,heart rate,heart rate variability,blood volume pulse(BVP),subjective thermal comfort thermal sensation,thermal acceptability,and normalized high and low frequency values were collected and compared The results indicated that the subjective responses of northern and southern participants were not significantly different;however,the subjective physiological symptoms and self-reported discomfort of the latter were less than those of the former,indicating that the southern participants had superior heat tolerance.Additionally,the physiological responses of all the participants were largely similar.However,southern participants showed slightly higher normalized high frequency and BVP values,indicating that they have more active vagus nerves and better vasodilation.They also showed a wider acceptable temperature range and better acclimation to heat exposure.Notably,the mean skin temperature could not effectively predict thermal sensation during heat exposure;this was more accurately achieved using the rate of change of skin temperature.These findings suggest that long-term thermal experiences can affect building occupants’thermal adaptability.Yufan Lin Liu Yang Maohui Luo 2021Building Simulation2021,14,6:5
8Redirecting differentiation of mammary progenitor cells by 3D bioprinted sweat gland microenvironment显示文摘Background:Mammary progenitor cells(MPCs)maintain their reproductive potency through life,and their specific microenvironments exert a deterministic control over these cells.MPCs provides one kind of ideal tools for studying engineered microenvironmental influence because of its accessibility and continually undergoes postnatal developmental changes.The aim of our study is to explore the critical role of the engineered sweat gland(SG)microenvironment in reprogramming MPCs into functional SG cells.Methods:We have utilized a three-dimensional(3D)SG microenvironment composed of gelatin-alginate hydrogels and components from mouse SG extracellular matrix(SG-ECM)proteins to reroute the differentiation of MPCs to study the functions of this microenvironment.MPCs were encapsulated into the artificial SG microenvironment and were printed into a 3D cell-laden construct.The expression of specific markers at the protein and gene levels was detected after cultured 14 days.Results:Compared with the control group,immunofluorescence and gene expression assay demonstrated that MPCs encapsulated in the bioprinted 3D-SG microenvironment could significantly express the functional marker of mouse SG,sodium/potassium channel protein ATP1a1,and tend to express the specific marker of luminal epithelial cells,keratin-8.When the Shh pathway is inhibited,the expression of SG-associated proteins in MPCs under the same induction environment is significantly reduced.Conclusions:Our evidence proved the ability of differentiated mouse MPCs to regenerate SG cells by engineered SG microenvironment in vitro and Shh pathway was found to be correlated with the changes in the differentiation.These results provide insights into regeneration of damaged SG by MPCs and the role of the engineered microenvironment in reprogramming cell fate.Rui Wang Yihui Wang Bin Yao Tian Hu Zhao Li Yufan Liu Xiaoli Cui Liuhanghang Cheng Wei Song Sha Huang Xiaobing Fu 2019Burns & Trauma2019,7,1:5
9Preparation of 5-fluorouracil-loaded chitosan nanoparticles and study of the sustained release in vitro and in vivo显示文摘The sustained-release properties of the biodegradable nano-drug delivery systems were used to improve the residence time of the chemotherapeutic agent in the body. These drug delivery systems were widely used to deliver chemotherapeutic drugs. The 5-fluorouracil loaded chitosan nanoparticles prepared in this paper have the above advantage. Here, we found that when the mass ratio of 5-fluorouracil and chitosan was 1:1, the maximum drug loading of nanoparticles was 20.13 ± 0.007%, the encapsulation efficiency was 44.28 ± 1.69%, the particle size was 283.9 ± 5.25 nm and the zeta potential was 45.3 ± 3.23 mV. The prepared nanoparticles had both burst-release and sustained-release phases in vitro release studies.In addition, the inhibitory effect of the prepared nanoparticles on gastric cancer SGC-7901 cells was similar to that of 5-fluorouracil injection, and the blank vector had no obvious inhibitory effect on SGC-7901 cells. In the pharmacokinetic study of rats in vivo, we found that AUC(0-t), MRT(0-t) and t1/2 z of nanoparticles were significantly increased in vivo compared with 5-fluorouracil solution, indicating that the prepared nanoparticles can play a role in sustained-release.Li Sun Yunna Chen Yali Zhou Dongdong Guo Yufan Fan Fangyan Guo Yufeng Zheng Weidong Chen 2017Asian Journal of Pharmaceutical Sciences2017,12,5:4
10Characteristics of the Outer Rainband Stratiform Sector in Numerically Simulated Tropical Cyclones:Lower-Layer Shear versus Upper-Layer Shear显示文摘Idealized numerical simulations are conducted in this study to comparatively investigate the characteristics of the stratiform sector in the outer rainbands of tropical cyclones(TCs)in lower-and upper-layer vertical wind shear(VWS)with moderate magnitude.Consistent with the results in previous studies,the outer rainband stratiform sector of the TCs simulated in both experiments is generally located downshear left.Upper-layer VWS tends to produce stronger asymmetric outflow at upper levels in the downshear-left quadrant than lower-layer shear.This stronger asymmetric outflow transports more water vapor radially outward from the inner core to the outer core at upper levels in the downshear-left quadrant in the upper-layer shear experiment.More depositional growth of both graupel and cloud ice thus occurs downshear left in upper layers in the outer core,yielding more diabatic heating and stronger upward motions,particularly in the stratiformdominated part of the stratiform sector in the upper-layer shear experiment.Resultingly,a better-organized stratiform sector in the outer rainbands is found in the upper-layer VWS experiment than in the lower-layer VWS experiment.The diabatic heating associated with the stratiform sector produces strong midlevel outflow on the radially inward side of,and weak midlevel inflow on the radially outward side of,the heating core,with lower-level inflow beneath the midlevel outflow and upper-level inflow above.The upper-layer VWS tends to produce a deeper asymmetric inflow layer in the outer rainband stratiform sector,with more significant lower-level inflow and tangential jets in the upper-layer VWS experiment.Qi GAO Qingqing LI Yufan DAI 2020Advances in Atmospheric Sciences2020,37,4:4
11A New Species of Genus Microhyla(Amphibia: Anura: Microhylidae) from Zhejiang Province, China显示文摘We described a new species, Microhyla beilunensis sp. nov., from Zhejiang Province of China. Phylogenetic analyses based on the mitochondrial 12 S, 16 S and CO1 gene sequences suggested that the new taxon was distinctly separated from its congeners and closed to M. mixtura and M. okinavensis. Morphologically, the new species could be identified from its congeners except M. mixtura by several characters:(1) rudimentary webs on toe base;(2) absence of disks and dorsal median longitudinal grooves on finger tips;(3) presence of disks and dorsal median longitudinal grooves on toe tips. As well, the new species could be identified from topotype M. mixtura by the combination of characters:(1) apart from the stripes, bar-shaped and oval-shaped patterns, the rounded spots present on the dorsum of body and legs;(2) the outer metacarpal tubercles prominently larger than the inner one;(3) of males, the ratios of HW, IND, UEW and LAW to SVL of the new species were significantly larger than those of M. mixtura(P < 0.01), and the ratios of SL, IOD, LAHL, HLL, TL, TFL and FL to SVL of the new species were significantly less than those of M. mixtura(P < 0.05).Meihua ZHANG Liang FEI Changyuan YE Yufan WANG Bin Wang Jianping JIANG 2018Asian Herpetological Research2018,9,3:4
12Polysaccharide-based nanomedicines for cancer immunotherapy:A review显示文摘Cancer immunotherapy is an effective antitumor approach through activating immune systems to eradicate tumors by immunotherapeutics.However,direct administration of“naked”immunotherapeutic agents(such as nucleic acids,cytokines,adjuvants or antigens without delivery vehicles)often results in:(1)an unsatisfactory efficacy due to suboptimal pharmacokinetics;(2)strong toxic and side effects due to low targeting(or off-target)efficiency.To overcome these shortcomings,a series of polysaccharide-based nanoparticles have been developed to carry immunotherapeutics to enhance antitumor immune responses with reduced toxicity and side effects.Polysaccharides are a family of natural polymers that hold unique physicochemical and biological properties,as they could interact with immune system to stimulate an enhanced immune response.Their structures offer versatility in synthesizing multifunctional nanocomposites,which could be chemically modified to achieve high stability and bioavailability for delivering therapeutics into tumor tissues.This review aims to highlight recent advances in polysaccharide-based nanomedicines for cancer immunotherapy and propose new perspectives on the use of polysaccharide-based immunotherapeutics.Yujun Zeng Yufan Xiang Ruilong Sheng Helena Tomás João Rodrigues Zhongwei Gu Hu Zhang Qiyong Gong Kui Luo 2021Bioactive Materials2021,6,10:3
13Stochastic stability of networked control systems with network-induced delay and data dropout显示文摘This paper deals with the stochastic stability of networked control systems with the presence of network-induced delay and transmitted data dropout. Based on the Lyapunov approach, sufficient conditions for the mean-square stability of the networked control system are derived subject that the sequence of transmission interval is driven by an identically independently distributed sequence and by a finite state Markov chain, respectively. Stabilization controllers are constructed in terms of linear matrix inequalities correspondingly. An example is provided to illustrate our results.Xiaomei ZHANG Yufan ZHENG Guoping LU 2008控制理论与应用(英文版)2008,6,4:3
14Efficient Construction of B-Spline Curves with Minimal Internal Energy显示文摘In this paper,we propose an efficient method to construct energy-minimizing B-spline curves by using discrete mask method.The linear relations between control points are firstly derived for different energy-minimization problems,then the construction of B-spline curve with minimal internal energy can be addressed by solving a sparse linear system.The existence and uniqueness of the solution for the linear system are also proved.Experimental results show the efficiency of the proposed approach,and its application in 1 G blending curve construction is also presented.Gang Xu Yufan Zhu Lishan Deng Guozhao Wang Bojian Li Kin-chuen Hui 2019Computers, Materials & Continua2019,,3:3
15A model of calcium signaling and degranulation dynamics induced by laser irradiation in mast cells显示文摘Recent experiments show that calcium signaling and degranulation dynamics induced by low power laser irradiation in mast cells must rely on extracellular Ca2+ influx. An analytical expression of Ca2+ flux through TRPV4 cation channel in response to interaction of laser photon energy and extracellular Ca2+ is deduced, and a model characterizing dynamics of calcium signaling and degranulation activated by laser irradiation in mast cells is established. The model indicates that the characteristics of calcium signaling and degranulation dynamics are determined by interaction between laser photon energy and Ca2+ influx. Extracellular Ca2+ concentration is so high that even small photon energy can activate mast cells, thus avoiding the possible injury caused by laser irradiation with shorter wavelengths. The model predicts that there exists a narrow parameter domain of photon energy and extracellular Ca2+ concen-tration of which results in cytosolic Ca2+ limit cycle oscillations, and shows that PKC activity is in direct proportion to the frequency of Ca2+ oscillations. With the model it is found that sustained and stable maximum plateau of cytosolic Ca2+ concentration can get optimal degranulation rate. Furthermore, the idea of introducing the realistic physical energy into model is applicable to modeling other physical signal transduction systems.SHI XiaoMin ZHENG YuFan LIU ZengRong YANG WenZhong 2008Chinese Science Bulletin2008,53,15:3
16Genesis of the Maoping carbonate-hosted Pb–Zn deposit,northeastern Yunnan Province,China:evidences from geology and C–O–S–Pb isotopes显示文摘The Maoping Pb-Zn deposit(~3 Mt Pb+Zn reserves with grades of 12-30 wt%)is one of the largest Pb-Zn deposits in the Sichuan-Yunnan-Guizhou(SYG)metallogenic province,which has contributed a tremendous amount of lead and zinc resources for China.To obtain a further understanding of the sources of ore-forming materials and ore genesis of the deposit,S-Pb isotopes of sulfides and C-O isotopes of ore-stage calcites were systematically collected from representative orebodies at different elevations with a Finnigan MAT-253 mass spectrometer.The calcites separated from the sulfides of the NoⅠand NoⅡorebodies shared identical b13 CPDB values(-5.3 to-0.8‰)andδ18OSMOW values(+14.5 to+21.8‰)with those of the calcites in the SYG region,suggesting that CO2 in regional ore-forming fluids possibly had a homologous C-O source that originated from a ternary mixture of the dissolution of marine carbonate rocks,degassing process of the Emeishan mantle plume,and dehydroxylation of sedimentary organic matter.The No.Ⅰ-1 and No.Ⅰ-2 orebody was hosted in the same strata,but the sulfur source of No.Ⅰ-1 orebody(+13.1 to+19.0‰)with equilibrated sulfur fractionation(δ34Sspbaierite-<δ34Sgalena)and No.Ⅰ-2 orebody(+18.0 to+21.8‰)with sulfur equilibrium fractionation(δ34Sspnaierite>δ34-Sgalena)were different.They were derived from the allopatry thermochemical sulfate reduction(TSR)of overlying Carboniferous sulfates in the ore-hosting strata and local TSR of sulfates in the ore-bearing Upper Devonian Zaige Formation,respectively.The narrow and uniform Pb isotopic ratios of single galena grains collected from sulfides with 206Pb/204Pb of 18.713-18.759,207Pb/204Pb of 15.772-15.776 and 208Pb/204Pb of39.383-39.467 indicate a well-mixed metal source(s)that consist of Proterozoic Kunyang and Huili Group basement rocks and Devonian to Middle Permian ore-hosting sedimentary rocks.Besides,the late Permian Emeishan basalts are difficult to contribute metals for regional Pb-Zn mineralization despite a closely spatial relationship with the distribution of the Pb-Zn deposit.This is supported by Pb isotopic ratios plotting above the average upper crustal Pb evolution curves and staying far away from that of the agecorrected Emeishan basalts.Hence,taking into account of the similarities in tectonic setting,ore-hosting rock,ore assemblage,wall rock alteration,ore-controlling structure,and ore-forming materials and the differences in relationship with regional magmatism,fluid inclusion characteristic and ore grade between the Maoping deposit and typical MVT Pb-Zn deposit,the ore genesis of the Maoping deposit should be an MVT like Pb-Zn deposit.Yufan He Tao Wu Zhilong Huang Lin Ye Ping Deng Zhenzhong Xiang 2020Acta Geochimica2020,39,5:3
17Microstructural evolution and performance of hydrogen storage and electrochemistry of Co-added La0.75Mg0.25Ni3.5-xCox(x=0,0.2,0.5 at%) alloys显示文摘Microstructure, hydrogen storage and electrochemical performances of Co-added La_(0.75)Mg_(0.25)Ni_(3.5_x)Co_x(x = 0,0.2, 0.5 at%) alloys are studied. XRD and rietveld refinement results suggest that the samples are mainly composed of(LaMg)Ni_3,(LaMg)_2Ni_7 and LaNi_5 phases, Co substitution for Ni changes the phase abundance,but not the phase composition. With the rising of Co content, the amount of(LaMg)_2 Ni_7 phase decreases, but the amount of LaNi_5 phase increases, while the amount of(LaMg)Ni_3 phase firstly increases and then decreases.The alloys reversibly absorb and desorb hydrogen at 298 K smoothly. When Co content is 0.2 at%, the hydrogen absorption capacity reaches the maximum value of 1.14 H/M, and the absorption capacities reach 1.09 H/M and 1.03 H/M in the first minute at 298 K and 323 K, respectively. Electrochemical performance measurement results show that La_(0.75)Mg_(0.25)Ni_(3.5-x)Co_x alloys are completely activated within 2 cycles, and the cyclic stability of La_(0.75)Mg_(0.25)Ni_(3.3)Co_(0.2) alloy approaches 63.7% after 100 charge/discharge cycles, which is higher than that(S_(100) = 60%) of La_(0.75)Mg_(0.25)Ni_(3.0)Co_(0.5) alloy. Thus, the La_(0.75)Mg_(0.25)Ni_(3.3)Co_(0.2) alloy exhibits optimum comprehensive properties of hydrogen storage and electrochemistry.Wei Lv Yufan Shi Wanpeng Deng Jianguang Yuan Youhua Yan Ying Wu 2017Progress in Natural Science:Materials International2017,27,4:3
18ABM-based emergency evacuation modelling during urban pluvial floods:A“7.20”pluvial flood event study in Zhengzhou,Henan Province显示文摘Increasing urban pluvial flood disasters due to climate change and rapid urbanisation have been a great challenge worldwide.Timely and effective emergency evacuation is important for reducing casualties and losses.This has become a bottleneck for emergency management.This study aimed to develop a commonly used Agent-Based Mode(ABM)for pluvial flood emergency evacuation at the city scale,exploring the cascading impacts of pluvial flooding on human behaviour and emergency evacuation.The July 2021 pluvial flood event in Zhengzhou,Henan Province,claiming 380 lives and 40.9 billion yuan in direct losses,was selected as this case study.A raster-based hydraulic model(ECNU Flood-Urban)was used to predict flood inundation(extent and depth)during an event in Zhengzhou’s centre.Moreover,a comparative analysis of emergency evacuations was conducted before and after the pluvial flood event.The results showed that crowd behaviour plays an important role in an emergency evacuation,and extensive flooding leads to an 11-83%reduction in the number of evacuees.This study highlights the importance of risk education and contingency plans in emergency response.The ABM model developed in this study is proven to be effective and practical and will provide support for decision-making in urban flood emergency management.Yuhan YANG Jie YIN Dandan WANG Yufan LIU Yi LU Weiguo ZHANG Shiyuan XU 2023Science China Earth Sciences2023,66,2:2
19Resilient outage recovery of a distribution system: co-optimizing mobile power sources with network structure显示文摘Outage recovery is important for reducing the economic cost and improving the reliability of a distribution system(DS)in extreme weather and with equipment faults.Previous studies have separately considered network reconfigu-ration(NR)and dispatching mobile power sources(MPS)to restore the outage load.However,NR cannot deal with the scenario of an electrical island,while dispatching MPS results in a long power outage.In this paper,a resilient outage recovery method based on co-optimizing MPS and NR is proposed,where the DS and traffic network(TN)are considered simultaneously.In the DS,the switch action cost and power losses are minimized,and the access points of MPSs are changed by carrying out the NR process.In the TN,an MPS dispatching model with the objective of mini-mizing power outage time,routing and power generation cost is developed to optimize the MPSs’schedule.A solu-tion algorithm based on iteration and relaxation methods is proposed to simplify the solving process and obtain the optimal recovery strategy.Finally,numerical case studies on the IEEE 33 and 119-bus systems validate the proposed resilient outage recovery method.It is shown that the access point of MPS can be changed by NR to decrease the power outage time and dispatching cost of MPS.The results also show that the system operation cost can be reduced by considering power losses in the objective function.Chenchen Li Yanna Xi Yufan Lu Nian Liu Liudong Chen Li Ju Yibin Tao 2022Protection and Control of Modern Power Systems2022,7,1:2
20Post-sulphuration enhances the performance of a lactone polymer donor显示文摘Remarkable progress has been made in conjugated copoly-mer donors due to the development of novel fused-ring ac-ceptor(FRA)building units[1−15].The copolymers based on FRA units have delivered excellent power conversion efficien-cies(PCEs)up to 18.69%in organic solar cells(OSCs)[16].Fused-ring aromatic lactones are promising FRA units[17−19].Yufan Jiang Ke Jin Xiujuan Chen Zuo Xiao Xiaotao Zhang Liming Ding 2021Journal of Semiconductors2021,42,7:2
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