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In Situ Directional Polymerization of Poly(1,3-dioxolane)Solid Electrolyte Induced by Cellulose paper-Based Composite Separator for Lithium Metal Batteries

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Energy & Environmental materials 2023年第3期6卷 134-143页

作者： Jian ma Yueyue Wu Hao Jiang Xin Yao Fan Zhang Xianglong Hou Xuyong Feng Hongfa Xiang School of materials Science and Engineering Anhui Provincial Key Laboratory of Advanced Functional Materials and DevicesHefei University of TechnologyHefei 230009China

In traditional in situ polymerization preparation for solid-state electrolytes,initiators are directly added to the liquid *** this article,a novel cellulose paper-based composite separator is fabricated,which employs alumina as the inorganic reinforcing material and is loaded with polymerization initiator aluminum *** upon this,a separator-induced in situ directional polymerization technique is demonstrated,and the extra addition of initiators into liquid precursors is no longer *** polymerization starts from the surface and interior of the separator and extends outward with the gradually dissolving of initiators into the *** with its traditional counterpart,the separator-induced poly(1,3-dioxolane)electrolyte shows improved interfacial contact as well as appropriately mitigated polymerization rate,which are conducive to practical *** measurement results show that the prepared poly(1,3-dioxolane)solid electrolyte possesses an oxidation potential up to 4.4 V and a high Li+transference number of *** 1000 cycles at 2 C rate(340 ma g^(−1)),the assembled Li||LiFePO_(4)solid battery possesses a 106.8 mah g^(−1)discharge capacity retention and 83.5%capacity retention ratio,with high average Coulombic efficiency of 99.5%*** work may provide new ideas for the design and application of in situ polymerization technique for solid electrolytes and solid batteries.

关键词： cellulose paper-based composite separator in situ directional polymerization lithium metal battery poly-DOL electrolyte solid-state electrolyte

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Entangled photon pair generation in an integrated SiC platform

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Light(Science & Applications) 2024年第6期13卷 1041-1046页

作者： Anouar Rahmouni Ruixuan Wang Jingwei Li Xiao Tang Thomas Gerrits Oliver Slattery Qing Li Lijun ma National Institute of Standards and Technology 100 Bureau DrGaithersburgMD20899USA Department of Electrical and Computer Engineering Carnegie Mellon UniversityPittsburghPA15213USA

Entanglement plays a vital role in quantum information *** to its unique material properties,silicon carbide recently emerged as a promising candidate for the scalable implementation of advanced quantum information processing *** date,however,only entanglement of nuclear spins has been reported in silicon carbide,while an entangled photon source,whether it is based on bulk or chip-scale technologies,has remained ***,we report the demonstration of an entangled photon source in an integrated silicon carbide platform for the first ***,strongly correlated photon pairs are efficiently generated at the telecom C-band wavelength through implementing spontaneous four-wave mixing in a compact microring resonator in the 4H-silicon-carbide-on-insulator *** maximum coincidence-to-accidental ratio exceeds 600 at a pump power of 0.17 mW,corresponding to a pair generation rate of(9±1)×10^(3) pairs/***-time entanglement is created and verified for such signal-idler photon pairs,with the two-photon interference fringes exhibiting a visibility larger than 99%.The heralded single-photon properties are also measured,with the heralded g^((2))(0)on the order of 10^(−3),demonstrating the SiC platform as a prospective fully integrated,complementary metal-oxide-semiconductor compatible single-photon source for quantum applications.

关键词： quantum coincidence mixing

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A study of peroxyacetyl nitrate at a rural site in Beijing based on continuous observations from 2015 to 2019 and the WRFChem model

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Frontiers of Environmental Science & Engineering 2020年第4期14卷 189-199页

作者： Yulu Qiu Zhiqiang ma Weili Lin Weijun Quan Weiwei Pu Yingruo Li Liyan Zhou Qingfeng Shi Institute of Urban Meteorology China Meteorological AdministrationBeijing 100089China Beijing Shangdianzi Regional Atmosphere Watch Station Beijing 101507China Environmental Meteorology Forecast Center of Beijing-Tianjin-Hebei Beijing 100089China College of Life&Environmental Science Minzu University of ChinaBeijing 100081China

Peroxyacetyl nitrate(pa N)is one of the most important photochemical pollutants and has aroused much concern in China in recent ***,few studies described the long-term variations in paN in *** this study,we continuously monitored the paN,03 and NOx concentrations at a regional background site near Beijing from August 2015 to February *** on the observed concentrations and climate data,w e analyzed the seasonal paN *** results revealed that the monthly mean paN concentration ranged from 0.33-2.41 ppb,with an average value of 0.94 *** paN concentration exhibited a distinct seasonal variation,with high values in spring and low values in *** analyzing the corresponding meteorological data,we found that stronger ultraviolet(UV)radiation,a relatively longer lifetime and a higher background paN concentration contributed to the high paN concentrations in *** addition,with the utilization of the WRF-Chem(Weather Research and Forecasting with Chemistry)model,the cause of the extremely high paN concentration in spring 2018 wa s *** model results demonstrated that an anomalously low pressure and the southwesterly winds in northern China might be the main causes of the increased paN concentration in Beijing and its surrounding area in spring 2018.

关键词： paN Ozone Beijing WRF-Chem

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A 2D covalent organic framework with ultra-large interlayer distance as high-rate anode material for lithium-ion batteries

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Nano Research 2022年第11期15卷 9779-9784页

作者： manman Wu Yang Zhao Hongtao Zhang Jie Zhu Yanfeng ma Chenxi Li Yamin Zhang Yongsheng Chen The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China Renewable Energy Conversion and Storage Center(RECAST) Nankai UniversityTianjin 300071China State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China

Covalent organic frameworks(COFs)have been broadly investigated for energy storage ***,many COF-based anode materials suffer from low utilization of redox-active sites and sluggish ions/electrons transport caused by their densely stacked ***,it is still a great challenge to obtain COF-based anode materials with fast ions/electrons transport and thus superior rate ***,a redox-active piperazine-terephthalaldehyde(pa-TA)COF with ultra-large interlayer distance is designed and synthesized for high-rate anode material,which contains piperazine units adopting a chair-shaped conformation with the nonplanar linkages of a tetrahedral *** unique structure renders pa-TA COF an ultra-large interlayer distance of 6.2Å,and further enables it to achieve outstanding rate and cycling *** a high specific capacity of 543 mah·g^(−1) even after 400 cycles at 1.0 A·g^(−1),it still could afford a specific capacity of 207 mah·g^(−1) even at a high current density of 5.0 A·g^(−1).Our study indicates that expanding the interlayer distance of COFs by rational molecular design would be of great importance to develop high-rate electrode materials for lithium-ion batteries.

关键词： lithium-ion batteries high-rate anode material covalent organic frameworks ultra-large interlayer distance

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Bioinspired flexible piezoresistive sensor for high-sensitivity detection of broad pressure range

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Bio-Design and manufacturing 2023年第3期6卷 243-254页

作者： Meng Wang Hao Zhang Han Wu Suqian ma Lei Ren Yunhong Liang Chunbao Liu Zhiwu Han Center of Reproductive Medicine Center of Prenatal DiagnosisThe First Hospital of Jilin UniversityChangchun 130021China The Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130025China School of Mechanical and Aerospace Engineering Jilin UniversityChangchun 130025China

The human skin has the ability to sense tactile touch and a great range of ***,in prosthetic or robotic systems,it is necessary to prepare pressure sensors with high sensitivity in a wide measurement range to provide human-like tactile ***,we developed a flexible piezoresistive pressure sensor that is highly sensitive in a broad pressure range by using lotus leaf micropatterned polydimethylsiloxane and multilayer *** superposing four layers of micropatterned constructive substrates,the multilayer piezoresistive pressure sensor achieves a broad pressure range of 312 kpa,a high sensitivity of 2.525 kpa^(−1),a low limit of detection(LOD)ofpa,and a fast response time of 45 *** with the traditional flexible pressure sensor,the pressure range of this sensor can be increased by at least an order of *** flexible piezoresistive pressure sensor also shows high robustness:after testing for at least 1000 cycles,it shows no sign of *** importantly,these sensors can be potentially applied in various human motion detection scenarios,including tiny pulse monitoring,throat vibration detection,and large under-feet pressure *** proposed fabrication strategy may guide the design of other kinds of multifunctional sensors to improve the detection performance.

关键词： Bionic Piezoresistive pressure sensor Microstructure Multilayer Wide pressure range

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Study on the disaster caused by the linkage failure of the residual coal pillar and rock stratum during multiple coal seam mining:mechanism of progressive and dynamic failure

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International Journal of Coal Science & Technology 2023年第3期10卷 122-135页

作者： Yunliang Tan Qing ma Xiaoli Liu Xuesheng Liu Derek Elsworth Ruipengg Qian Junlong Shang College of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao 266590China State Key Laboratory of Hydroscience and Engineering Tsinghua UniversityBeijing 100084China Department of Energy and Mineral Engineering G3 Center and Energy InstituteThe Pennsylvania State UniversityUniversity ParkPA16803USA James Watt School of Engineering University of GlasgowGlasgowG128QQUK

Multi-seam mining often leads to the retention of a significant number of coal pillars for purposes such as protection,safety,or water ***,stress concentration beneath these residual coal pillars can significantly impact their strength and stability when mining below them,potentially leading to hydraulic support failure,surface subsidence,and rock *** address this issue,the linkage between the failure and instability of residual coal pillars and rock strata during multi-seam mining is examined in this *** controls include residual pillar spalling,safety factor(f.),local mine stiffness(LMS),and the post-peak stiffness(k)of the residual coal *** separating the two forms of failure,progressive versus dynamic,are *** failure results at lower stresses when the coal pillar transitions from indefinitely stable(f,>1.5)to failing(f,main stable for an extended duration,whereas sud-den(unstable)failure results when the strength of the pillar is further degraded and *** transition in mode of failure is defined by the LMS/k *** transitions from quiescent to dynamic as LMS/k.pagating throughout the *** study provides theoretical guidance to define this limit to instability of residual coal pillars for multi-seam mining in similar mines.

关键词： Multi-seam mining Residual coal pillars Rock stratum Linkage instability mechanism Local mine stiffness

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Controls on the facies and architecture evolution of a fan delta in Qinghai Lake,China

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Frontiers of Earth Science 2024年第3期18卷 488-508页

作者： Di ma Xinghe YU Shunli LI Zhijie ZHANG Chao FU Hongwei SUN Chun LIU School of Energy China University of GeosciencesBeijing 100083China Research Institute of Petroleum Exploration and Development Hangzhou 310000China

Deltaic sedimentary systems form the most favorable hydrocarbon reservoirs in continental faulted lacustrine basins,and their types and controlling factors directly affect the distribution of *** systematic study of typical modern delta deposition provides significant guidance regarding the distribution of oil and gas reservoirs in the *** this reason,the Heima River delta in Qinghai Lake,which features multiple sediment sources and clear sedimentary evolution stages,was selected for this research.A detailed study of the sedimentology and architectural characteristics of the Heimahe delta in Qinghai Lake was conducted.A total of 4 types of gravel facies,4 types of sand facies,and 2 types of mud facies were *** study also focuses on recognizing the architectural elements within channels and *** delta plain features debris-flow,switched,and migrated channels and vertical and bilateral aggradation *** delta front features migrated and filled channels and bilateral and lateral aggradation ***-two representative outcrop sections were *** observation and analysis of these sections revealed three stages:the progradation to aggradation(pa)stage,in which the deposits show evidence of sigmoid-type and coarse-grained sedimentation;the retrogradation(R)stage,which is characterized by imbricated regression;and the aggradation to progradation and degradation(APD)stage,which is characterized by a terraced-stepping,progression stacking *** on the integrated analysis of the sedimentary environment,outcrop lithofacies associations,architecture stacking patterns,fossils and bioclasts,we identified diverse depositional associations and constructed a sedimentary evolution model of the depositional system in this *** suggest that the depositional system transitioned from an early single-provenance gravel-rich fan delta to a multi-provenance mud-rich delta and that two factors mainly controlled the transitio

关键词： Qinghai Lake Heimahe Delta sedimentary pattern controlling factor Quaternary

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Aza-BODIPY based probe for photoacoustic imaging of ONOO;in vivo

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Chinese Chemical Letters 2021年第12期32卷 3886-3889页

作者： Danghui ma Shumin Hou Chaeeon Bae Thanh Chung Pham Songyi Lee Xin Zhou Department of Chemistry College of Chemistry and Chemical EngineeringQingdao 266071China Qingdao Cancer Institute Qingdao UniversityQingdao 266071China Department of Chemistry Pukyong National UniversityBusan 48513Korea Industry 4.0 Convergence Bionics Engineering Pukyong National UniversityBusan 48513Korea

The effective detecting ONOO^(-)variations in vivo is of great importance to well understand the complex pathophysiological processes. We reported here a photoacoustic(pa) probe AZB-1 for imaging ONOO;in vivo. AZB-1 showed an originally strong photoacoustic signal at 660 nm. And its pa signal can be turned off by shutting the ICT effect caused by the conjugated electron withdrawing group at 2-position of the aza-BODIPY core. Moreover, the probe was successfully employed to imaging ONOO^(-)variations in inflammatory mice models. Wisely utilized this strategy may serve as powerful platforms for the preparation of novel pa chemosensors.

关键词： Photoacoustic ONOO^(-) Imaging Aza-BODIPY In vivo

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Possible contribution of Arctic sea ice decline to intense warming over Siberia in June

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Atmospheric and Oceanic Science Letters 2022年第2期15卷 59-64页

作者： Ying Zhang Mengqi Zhang Jiehua ma Dong Chen Tao Wang Climate Change Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Nansen-Zhu International Research Center Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Meteorological Disaster Ministry of Education/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science&TechnologyNanjingChina

Siberia experienced intense heat waves in 2020,and this unusual warming may have caused more wildfires and losses of permafrost than normal,both of which can be devastating to *** on observational data,this paper shows that there was an intense warming trend over Siberia(60°–75°N,70°–130°E)in June during 1979–*** linear trend of the June surface air temperature is 0.90℃/10 yr over Siberia,which is much larger than the area with the same latitudes(60°–75°N,0°–360°,trend of 0.46℃/10 yr).The warming over Siberia extends from the surface to about 300 h *** geopotential height in the mid-to-upper troposphere plays an important role in shaping the Siberian warming,which favors more shortwave radiation reaching the surface and further heating the overlying atmosphere via upward turbulent heat flux and longwave *** Siberian warming is closely related to Arctic sea-ice decline,especially the sea ice over northern Barents Sea and Kara *** experiments carried out using and atmospheric general circulation model(IAP-AGCM4.1)confirmed the contribution of the Arctic sea-ice decline to the Siberian warming and the related changes in circulations and surface fluxes.

关键词： Intense Siberian warming Arctic sea ice decline Surface radiation flux Turbulent heat flux

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“Know Diabetes by Heart”: role of adipocytecardiomyocyte communications

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Medical Review 2021年第1期1卷 14-17页

作者： Yajing Wang Wayne Bond Lau Xinliang ma Department of Emergency Medicine Thomas Jefferson UniversityPhiladelphia 19107PAUSA.

Cardiovascular disease is the leading cause of morbidity in patients with diabetes *** 2019,the American Heart Association and the American Diabetes Association(along with industry leaders)launched the groundbreaking collaborative initiative“Know Diabetes by Heart™”to reduce cardiovascular deaths in type 2 diabetic *** molecular basis linking diabetes with cardiovascular complications has not yet been fully *** clinical and experimental studies strongly suggest that adipocyte dysfunction and subsequent pathological communications between adipocyte and cardiomyocytes play important roles in diabetic cardiac *** perspective article will review recent development concerning adipocyte-cardiomyocyte communications,and identify the most critical questions remain to be answered in this filed.

关键词： adipocyte cardiomyocyte diabetes myocardial ischemia.

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