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| 1 | Distributed Photovoltaic Generation in the Electricity Market:Status,Mode and Strategy显示文摘With the increasingly serious climate change and energy crisis,photovoltaic(PV)generation,as one of the most important renewable energy resources,has experienced dramatic growth worldwide due to its environmental friendliness.How-ever,the uncertainty and intermittency of PV bring inevitable challenges to power systems.With the rapid development of distributed PV and the continuous evolution of the electricity market,increasingly high penetration levels of distributed PV generation have led to a series of problems in power system operations,such as voltage fluctuation,frequency deviation,etc.The market participation of distributed PV needs to be solved.Reasonable market participation form,market mechanism and bidding strategies are vital to the development of distributed PV in the electricity market.This paper comprehensively reviews the development and impacts of distributed PV in the electricity market and discusses the relevant market modes and bidding strategies in detail. | Sifan Jiang Can Wan Chen Chen Erbao Cao Yonghua Song | 2018 | CSEE Journal of Power and Energy Systems2018,4,3: | 7 |
| 2 | 3D carbon network supported porous SiOC ceramics with enhanced microwave absorption properties显示文摘Porous SiOC ceramic was successfully prepared by pyrolysis of dimethylsilicone oil,silane coupling agent and melamine foam.The microwave absorbing properties of porous SiOC were studied for the first time.At the matching layer thickness of 3.0 mm,the paraffin-based composite with porous SiOC displays a minimum reflection coefficient(RC)of-39.13 d B(11.76 GHz)and an effective absorption bandwidth(EAB)of 4.64 GHz which are much larger than that of paraffin-based composite with ordinary SiOC.It is found that the porous structure of SiOC is crucial to achieve its high microwave absorption performance by improving both the polarization loss and conduction loss.The enhanced polarization loss is originated from the dipole polarization and interfacial polarization,while the improvement of conduction loss is attributed to the carbon skeleton of porous SiOC.These results indicate that porous SiOC ceramic is a promising candidate for high-performance ceramic-based microwave absorbing materials. | Chen Chen Sifan Zeng Xiaochun Han Yongqiang Tan Wanlin Feng Huahai Shen Shuming Peng Haibin Zhang | 2020 | Journal of Materials Science & Technology2020,54,19: | 3 |
| 3 | Development of superconducting microcalorimeters for the HUBS mission显示文摘Hot Universe Baryon Surveyor(HUBS)is a proposed space‐borne observatory for X‐ray astronomy.The primary scientific objectives of the mission are to fill a void in probing the ecosystem of galaxies and thus to advance our understanding of galaxy formation and evolution,which is of fundamental importance in cosmology.More specifically,HUBS aims at directly detecting soft X‐ray emission from diffuse gas of temperature exceeding 106 K,which is theoretically postulated to permeate the large structures in the cosmic web and also fill the extended halo of galaxies.However,although some indirect evidence exists,the presence of such hot gas has yet to be well established observationally,due to the lack of effective tools to probe it.In this paper,we describe the design of HUBS,focusing on its scientific payload,which employs superconducting technologies in the detector system,and particularly on progress in the development of superconducting microcalorimeters. | Sifan Wang Guole Wang Naihui Chen Yanling Chen Wei Cui Jiao Ding Fajun Li Yajie Liang Qian Wang Yeru Wang | 2022 | Superconductivity2022,,4: | 2 |
| 4 | A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning显示文摘Antibiotics are widely used in medicine and animal husbandry.However,due to the resistance of antibiotics to degradation,large amounts of antibiotics enter the environment,posing a potential risk to the ecosystem and public health.Therefore,the detection of antibiotics in the environment is necessary.Nevertheless,conventional detection methods usually involve complex pretreatment techniques and expensive instrumentation,which impose considerable time and economic costs.In this paper,we proposed a method for the fast detection of mixed antibiotics based on simplified pretreatment using spectral machine learning.With the help of a modified spectrometer,a large number of characteristic images were generated to map antibiotic information.The relationship between characteristic images and antibiotic concentrations was established by machine learning model.The coefficient of determination and root mean squared error were used to evaluate the prediction performance of the machine learning model.The results show that a well-trained machine learning model can accurately predict multiple antibiotic concentrations simultaneously with almost no pretreatment.The results from this study have some referential value for promoting the development of environmental detection technologies and digital environmental management strategies. | Yicai Huang Jiayuan Chen Qiannan Duan Yunjin Feng Run Luo Wenjing Wang Fenli Liu Sifan Bi Jianchao Lee | 2022 | Frontiers of Environmental Science & Engineering2022,16,3: | 2 |
| 5 | Tandem Molecular Self-Assembly Selectively Inhibits Lung Cancer Cells by Inducing Endoplasmic Reticulum Stress显示文摘The selective formation of nanomaterials in cancer cells and tumors holds great promise for cancer diagnostics and therapy.Until now,most strategies rely on a single trigger to control the formation of nanomaterials in situ.The combination of two or more triggers may provide for more sophisticated means of manipulation.In this study,we rationally designed a molecule(Comp.1)capable of responding to two enzymes,alkaline phosphatase(ALP),and reductase.Since the A549 lung cancer cell line showed elevated levels of extracellular ALP and intracellular reductase,we demonstrated that Comp.1 responded in a stepwise fashion to those two enzymes and displayed a tandem molecular self-assembly behavior.The selective formation of nanofibers in the mitochondria of the lung cancer cells led to the disruption of the mitochondrial membrane,resulting in an increased level of reactive oxygen species(ROS)and the release of cytochrome C(Cyt C).ROS can react with proteins,resulting in endoplasmic reticulum(ER)stress and the unfolded protein response(UPR).This severe ER stress led to disruption of the ER,formation of vacuoles,and ultimately,apoptosis of the A549 cells.Therefore,Comp.1 could selectively inhibit lung cancer cells in vitro and A549 xenograft tumors in vivo.Our study provides a novel strategy for the selective formation of nanomaterials in lung cancer cells,which is powerful and promising for the diagnosis and treatment of lung cancer. | Debin Zheng Yumiao Chen Sifan Ai Renshu Zhang Zhengfeng Gao Chunhui Liang Li Cao Yaoxia Chen Zhangyong Hong Yang Shi Ling Wang Xingyi Li Zhimou Yang | 2019 | Research2019,,1: | 1 |
| 6 | The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections. | Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang | 2023 | Research in Astronomy and Astrophysics2023,23,6: | 1 |
| 7 | Resveratrol induces Sirt1-dependent apoptosis in 3T3-L1 preadipocytes by activating AMPK and suppressing AKT activity and survivin expression显示文摘 | Sifan Chen Xincai Xiao Xiang Feng Wenxue Li Niman Zhou Lin Zheng Yanshuang Sun Zili Zhang Wei Zhu | 2012 | The Journal of Nutritional Biochemistry2012,,9: | 1 |
| 8 | Resveratrol induces Sirt1-dependent apoptosis in 3T3-L1 preadipocytes by activating AMPK and suppressing AKT activity and survivin expression显示文摘 | Sifan Chen Xincai Xiao Xiang Feng Wenxue Li Niman Zhou Lin Zheng Yanshuang Sun Zili Zhang Wei Zhu | 2012 | The Journal of Nutritional Biochemistry2012,,9: | 1 |
| 9 | Status and Correlates of Hypersomnia in Hospitalized Patients with Unipolar Depression—Beijingf Henanf and Shandong,China,August 2019-March 2021显示文摘Summary What is already known about this topic?Hypersomnia is an atypical characteristic of unipolar depression(UD),indicating a high risk of bipolar depression.Identifying the symptom should be prioritized in patients with UD.However,the status and correlated factors of hypersomnia greatly varied across investigations.What is added by this report? | Yun Chen Lyufeng Zhang Sifan Hu Hongle Zhang Qiqing Sun Mengyue Hong Yuying Qian Lin Lu Hongqiang Sun | 2021 | China CDC weekly2021,3,42: | 0 |
| 10 | The barriers to global eye care equity and the role of digital innovations显示文摘1.Introduction Ophthalmology has benefited from a myriad of digital innovations ranging from simple virtual clinics to complex deep-learning imaging analysis.1 With an increasingly ageing global population,the need for population eye health planning is paramount and should be recognised as an essential aspect of overall health.2 However,high-quality eye health services are often not universally delivered.This is especially the case in low middle-income countries(LMICs),whose populations suffer far more in blindness and visual impairment compared to wealthier countries.3 Numerous social determinants,including low education levels,poverty,physical distance,and socio-cultural situations,can all contribute towards inequitable access to eye care services.4 New modes of healthcare delivery proposed by digital innovations have the potential to reduce inequity. | Sifan Zheng Justin Choo Jessica Chen Sarala Joshi Zhaohui Sun | 2021 | Advances in Ophthalmology Practice and Research2021,1,2: | 0 |
| 11 | Construction of N,O co-doped carbon anchored with Co nanoparticles as efficient catalyst for furfural hydrodeoxygenation in ethanol显示文摘Hydrodeoxygenation of furfural(FF)into 2-methylfuran(MF)is a significant biomass utilization route.However,designing efficient and stable non-noble metal catalyst is still a huge challenge.Herein,we reported the N,O co-doped carbon anchored with Co nanoparticles(Co-SFB)synthesized by employing the organic ligands with the target heteroatoms.Raman,electron paramagnetic resonance(EPR),electrochemical impedance spectroscopy(EIS),and X-ray photoelectron spectroscopy(XPS)characterizations showed that the co-doping of N and O heteroatoms in the carbon support endows Co-SFB with enriched lone pair electrons,fast electron transfer ability,and strong metal-support interaction.These electronic properties resulted in strong FF adsorption as well as lower apparent reaction activation energy.At last,the obtained N,O co-doped Co/C catalyst showed excellent catalytic activity(nearly 100 mol%FF conversion and 94.6 mol%MF yield)and stability for in-situ dehydrogenation of FF into MF.This N,O co-doping strategy for the synthesis of highly efficient catalytic materials with controllable electronic state will provide an excellent opportunity to better understand the structure-function relationship. | Hui Yang Hao Chen Wenhua Zhou Haoan Fan Chao Chen Yixuan Sun Jiaji Zhang Sifan Wang Teng Guo Jie Fu | 2023 | Journal of Energy Chemistry2023,,3: | 0 |
| 12 | COVID-19 induces new-onset insulin resistance and lipid metabolic dysregulation via regulation of secreted metabolic factors显示文摘Abnormal glucose and lipid metabolism in COVID-19 patients were recently reported with unclear mechanism.In this study,we retrospectively investigated a cohort of COVID-19 patients without pre-existing metabolic-related diseases,and found new-onset in suli n resista nee,hyperglycemia,and decreased HDL-C in these patie nts.Mecha nistically,SARS-CoV-2 infecti on in creased the expression of RE1-silencing transcription factor(REST),which modulated the expression of secreted metabolic factors including myeloperoxidase,apelin,and myostatin at the transcriptional level,resulting in the perturbation of glucose and lipid metabolism.Furthermore,several lipids,including(±)5-HETE,(±)12-HETE,propionic acid,and isobutyric acid were identified as the potential biomarkers of COVID-19-induced metabolic dysregulation,especially in insulin resistance.Taken together,our study revealed insulin resistance as the direct cause of hyperglycemia upon COVID-19,and further illustrated the underlying mechanisms,providing potential therapeutic targets for COVID-19-induced metabolic complications. | Xi He Chenshu Liu Jiangyun Peng Zilun Li Fang Li Jian Wang Ao Hu Meixiu Peng Kan Huang Dongxiao Fan Na Li Fuchun Zhang Weiping Cai Xinghua Tan Zhongwei Hu Xilong Deng Yueping Li Xiaoneng Mo Linghua Li Yaling Shi Li Yang Yuanyuan Zhu Yanrong Wu Huichao Liang Baolin Liao Wenxin Hong Ruiying He Jiaojiao Li Pengle Guo Youguang Zhuo Lingzhai Zhao Fengyu Hu Wenxue Li Wei Zhu Zefeng Zhang Zeling Guo Wei Zhang Xiqiang Hong Wei kang Cai Lei Gu Ziming Du Yang Zhang Jin Xu Tao Zuo Kai Deng Li Yan Xinwen Chen Sifan Chen Chunliang Lei | 2022 | Signal Transduction and Targeted Therapy2022,7,1: | 0 |
| 13 | Efficient and stable PtFe alloy catalyst for electrocatalytic methanol oxidation with high resistance to CO显示文摘Direct methanol fuel cells(DMFC) are widely considered to be an ideal green energy conversion device but their widespread applications are limited by the high price of the Pt-based catalysts and the instability in terms of surface CO toxicity in long-term operation.Herein,the PtFe alloy nanoparticles(NPs) with small particle size(~4.12 nm) supported on carbon black catalysts with different Pt/Fe atomic ratios(Pt_(1)Fe_(2)/C,Pt_(3)Fe_(4)/C,Pt_(1)Fe_(1)/C,and Pt_(2)Fe_(1)/C) are successfully prepared for enhanced anti-CO poisoning during methanol oxidation reaction(MOR).The optimal atomic ratio of Pt/Fe for the MOR is 1:2,and the mass activity of Pt_(1)Fe_(2)/C(5.40 A mg_(Pt)^(-1)) is 13.5 times higher than that of conventional commercial Pt/C(Pt/C-JM)(0.40 A mg_(Pt)^(-1)).The introduction of Fe into the Pt lattice forms the PtFe alloy phase,and the electron density of Pt is reduced after forming the PtFe alloy.In-situ Fourier transform infrared results indicate that the addition of oxyphilic metal Fe has reduced the adsorption of reactant molecules on Pt during the MOR.The doping of Fe atoms helps to desorb toxic intermediates and regenerate Pt active sites,promoting the cleavage of C-O bonds with good selectivity of CO_(2)(58.1%).Moreover,the Pt_(1)Fe_(2)/C catalyst exhibits higher CO tolerance,methanol electrooxidation activity,and long-term stability than other Pt_(x)Fe_(y)/C catalysts. | Qian Yang Sifan Zhang Fengshun Wu Lihua Zhu Guang Li Mingzhi Chen An Pei Yingliang Feng | 2024 | Journal of Energy Chemistry2024,90,3: | 0 |
| 14 | Efficient ORR catalysts for zinc-air battery: Biomass-derived ultra-stable Co nanoparticles wrapped with graphitic layers via optimizing electron transfer显示文摘The poor stability of non-noble metal catalysts in oxygen reduction reaction(ORR) is a main bottleneck that limits their big-scale application in metal-air batteries. Herein, we construct a chainmail catalyst(Co-NC-AD) with outstanding stability, via the competitive complexation and post absorption strategy,consisting of highly graphitic layers wrapped uniform-size Co nanoparticles(Co-NPs). Experiments combined with density functional theory(DFT) calculations jointly confirmed that the electron transfer occurred from the inner Co-NPs to the external graphitic layers. It facilitated the adsorption process of oxygen molecules and the hybridization of the O-2 p and C-1 p orbitals, which accelerated the ORR reaction kinetics. Consequently, our prepared Co-NC-AD shows excellent ORR activity, offered with a more positive initial potential(E_(onset)= 0.95 V) and half-wave potential(E_(1/2)= 0.86 V). The remarkable stability and resistance of methanol poisoning are merited from the protection effect of stable graphitic layers. In addition, the high electrochemical performance of Co-NC-AD-based zinc-air battery demonstrates their potential for practical applications. Therefore, our work provides new ideas for the design of nanoconfined catalysts with high stability and activity. | Yu Feng Kexin Song Wei Zhang Xinyan Zhou Seung Jo Yoo Jin-Gyu Kim Sifan Qiao Yugang Qi Xu Zou Zhongjun Chen Tingting Qin Nailin Yue Zizhun Wang Dabing Li Weitao Zheng | 2022 | Journal of Energy Chemistry2022,31,7: | 0 |
| 15 | The best thermoelectrics revisited in the quantum limit显示文摘The classical problem of best thermoelectrics,which was believed originally solved by Mahan and Sofo[Proc.Natl.Acad.Sci.USA 93,7436(1996)],is revisited and discussed in the quantum limit.We express the thermoelectric figure of merit(zT)as a functional of electronic transmission probability T by the Landauer–Büttiker formalism,which is able to deal with thermoelectric transport ranging from ballistic to diffusive regimes.We also propose to apply the calculus of variations to search for the optimal T giving the maximal zT.Our study reveals that the optimal transmission probability T is a boxcar function instead of a delta function proposed by Mahan and Sofo,leading to zT exceeding the well-known Mahan–Sofo limit.Furthermore,we suggest realizing the optimal T in topological material systems.Our work defines the theoretical upper limit for quantum thermoelectrics,which is of fundamental significance to the future development of thermoelectrics. | Sifan Ding Xiaobin Chen Yong Xu Wenhui Duan | 2023 | npj Computational Materials2023,,1: | 0 |
| 16 | Building better solid-state batteries with silicon-based anodes显示文摘Silicon(Si)-based solid-state batteries(Si-SSBs)are attracting tremendous attention because of their high energy density and unprecedented safety,making them become promising candidates for next-generation energy storage systems.Nevertheless,the commercialization of Si-SSBs is significantly impeded by enormous challenges including large volume variation,severe interfacial problems,elusive fundamental mechanisms,and unsatisfied electrochemical performance.Besides,some unknown electrochemical processes in Si-based anode,solid-state electrolytes(SSEs),and Si-based anode/SSE interfaces are still needed to be explored,while an in-depth understanding of solid–solid interfacial chemistry is insufficient in Si-SSBs.This review aims to summarize the current scientific and technological advances and insights into tackling challenges to promote the deployment of Si-SSBs.First,the differences between various conventional liquid electrolyte-dominated Si-based lithium-ion batteries(LIBs)with Si-SSBs are discussed.Subsequently,the interfacial mechanical contact model,chemical reaction properties,and charge transfer kinetics(mechanical–chemical kinetics)between Si-based anode and three different SSEs(inorganic(oxides)SSEs,organic–inorganic composite SSEs,and inorganic(sulfides)SSEs)are systemically reviewed,respectively.Moreover,the progress for promising inorganic(sulfides)SSE-based Si-SSBs on the aspects of electrode constitution,three-dimensional structured electrodes,and external stack pressure is highlighted,respectively.Finally,future research directions and prospects in the development of Si-SSBs are proposed. | Zhefei Sun Quanzhi Yin Haoyu Chen Miao Li Shenghui Zhou Sifan Wen Jianhai Pan Qizheng Zheng Bing Jiang Haodong Liu Kangwoon Kim Jie Li Xiang Han Yan-Bing He Li Zhang Meicheng Li Qiaobao Zhang | 2023 | Interdisciplinary Materials2023,2,4: | 0 |