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Aligned Ion Conduction Pathway of Polyrotaxane‑Based Electrolyte with Dispersed Hydrophobic Chains for Solid‑State Lithium–Oxygen Batteries

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Nano-Micro Letters 2025年第2期17卷 169-186页

作者： Bitgaram Kim Myeong‑chang Sung Gwang‑Hee Lee Byoungjoon Hwang Sojung Seo Ji‑Hun Seo Dong‑Wan Kim Department of Materials Science and Engineering Korea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced Engineering(IAE)Yongin 17180Republic of Korea

A critical challenge hindering the practical application of lithium–oxygen batteries(LOBs)is the inevitable problems associated with liquid electrolytes,such as evaporation and safety *** study addresses these problems by proposing a modified polyrotaxane(mPR)-based solid polymer electrolyte(SPE)design that simultaneously mitigates solvent-related problems and improves ***-SPE exhibits high ion conductivity(2.8×10^(−3)S cm^(−1)at 25℃)through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain *** this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 *** situ Raman spectroscopy reveals the presence of an LiO_(2)intermediate alongside Li_(2)O_(2)during oxygen *** situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture,as demonstrated by the air permeability *** present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs.

关键词： Solid polymer electrolyte Lithium-oxygen batteries Polyrotaxane ion conductivity Hydrophobic chain

Relationship of quantitative structure and pharmacokinetics in fluoroquinolone antibacterials

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World Journal of Gastroenterology 2007年第17期13卷 2496-2503页

作者： Die cheng Wei-Ren xu chang-Xiao Liu Department of Pharmaceutical Engineering Schoolof Chemical Engineering and Technology Tianjin UniversityTianjin 300072 China National KeyLaboratory of Pharmacokinetics and Pharmacodynamics TianjinInstitute of Pharmaceutical Research Tianjin 300193 China

AIM： To study the relationship between quantitative structure and pharmacokinetics （QSPkR） of fluorocluinolone antibacterials.METHODS： The pharmacokinetic （PK） parameters of oral fluoroquinolones were collected from the literature. These pharmacokinetic data were averaged, 19 compounds were used as the training set, and 3 served as the test set. Genetic function approximation （GFA） module of Cerius2 software was used in QSPkR analysis.RESULTS： A small volume and large polarizability and surface area of substituents at C-7 contribute to a large area under the curve （AUC） for fluoroquinolones. Large polarizability and small volume of substituents at N-1 contribute to a long half life elimination.CONCLUSION： QSPkR models can contribute to some fluoroquinolones antibacterials with excellent pharmacokinetic properties.

关键词： Quantitative structure pharmacokinetic relationship Genetic function approximation Fluoro-quinolones Elimination half life

Novel polarimetric detector for target detection in heterogeneous clutter

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Journal of Systems Engineering and Electronics 2016年第6期27卷 1135-1141页

作者： xu cheng Longfei Shi Yuliang chang Yongzhen Li xuesong Wang State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System College of Electronic Science and Engineering National University of Defense Technology

A detection of static or slowly moving targets in the inhomogeneous clutter of polarimetric radar is researched and a new detector without exploiting the training set is developed, which has a good performance against the inhomogeneous clutter. The decision rule ensures the constant false alarm rate (CFAR) with respect to the disturbance covariance matrix. Numerical results show the robustness of the proposed method against the inhomogeneous clutter. © 2016 Beijing Institute of Aerospace Information.

关键词： Clutter (information theory) Covariance matrix Numerical methods Polarimeters Radar Radar clutter Radar signal processing Signal processing

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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Nano-Micro Letters 2025年第3期17卷 265-279页

作者： Yu‑Ze Wang Yu‑chang Wang Ting‑Ting Liu Quan‑Liang Zhao Chen‑Sha Li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

Unraveling the mechanisms underlying lake expansion from 2001 to 2020 and its impact on the ecological environment in a typical alpine basin on the Tibetan Plateau

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China Geology 2023年第2期6卷 216-227页

作者： chang-chang Fu Xiang-quan Li xu cheng Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Quaternary Chronology and Hydrological Environmental Evolution China Geological SurveyShijiazhuang 050061China Airborne Survey and Remote Sensing Center of Nuclear Industry Shijiazhuang 050000China

Yanhu Lake basin(YHB)is a typical alpine lake on the northeastern Tibetan Plateau(TP).Its continuous expansion in recent years poses serious threats to downstream major *** a result,studies of the mechanisms underlying lake expansion are urgently *** elasticity method within the Budyko framework was used to calculate the water balance in the Yanhu Lake basin(YHB)and the neighboring Tuotuo River basin(TRB).Results show intensification of hydrological cycles and positive trends in the lake area,river runoff,precipitation,and potential *** expansion was significant between 2001 and 2020 and accelerated between 2015 and *** increase was the key factor underlying the hydrological changes,followed by glacier meltwater and *** overflow of Yanhu Lake was inevitable because it was connected to three other lakes and the water balance of all four lakes was *** high salinity lake water diverted downstream will greatly impact the water quality of the source area of the Yangtze River and the stability of the permafrost base of the traffic corridor.

关键词： Attribution analysis Budyko framework Climate change Lake expansion Water balance Diverting water to the Yangtze River Hydrogeology survey engineering Tibetan Plateau

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栽培模式对玉米产量形成的调控效应研究

辽宁农业科学 2021年第1期 10-13页

作者：刘欣芳李静徐长成马骏邵帅齐欣辽宁省农业科学院玉米研究所辽宁沈阳110161 辽宁省种业发展中心辽宁沈阳110034 辽宁东亚有限种业有限公司辽宁沈阳110164

为研究不同栽培模式对辽宁玉米土壤物理性质、干物质积累、叶面积指数、总粒数、百粒重等产量构成因素的影响,2018年在沈阳以东单6531和辽单588为供试品种,设置常规垄作、平作匀行和平作宽窄行3个栽培模式,同时设置这三种模式对应的6750... 详细信息

为研究不同栽培模式对辽宁玉米土壤物理性质、干物质积累、叶面积指数、总粒数、百粒重等产量构成因素的影响,2018年在沈阳以东单6531和辽单588为供试品种,设置常规垄作、平作匀行和平作宽窄行3个栽培模式,同时设置这三种模式对应的67500株/hm^(2)和75000株/hm^(2)种植密度,开展高密条件下栽培模式对品种产量形成效应影响的试验。结果表明,2个品种的3种栽培模式对土壤物理性质的影响差异不显著;同一品种平作宽窄行75000株/hm^(2)密度下的各生育时期干物质积累量和叶面积指数均高于其他模式;同一品种的平作宽窄行模式能够有效增加穗长、穗粒数、百粒重和缩短秃尖长度等产量构成因素,使玉米显著增产,东单6531增产14.39%以上,辽单588增产12.73%以上。宽窄行较匀行具有增产效应,且能使玉米在高密度下达到高产效果。

关键词：玉米栽培土壤物理性质干物质积累叶面积指数产量

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莱钢1880m^3高炉提高煤比生产实践

山东冶金 2011年第5期33卷 46-47页

作者：郎达慧胥长城蒋学健王雪朋莱芜钢铁集团有限公司山东莱芜271104

莱钢1880m3高炉通过改进喷枪系统,杜绝了管道堵塞问题,最大喷吹量达到50t/h;通过加强原燃料管理,实施多环布料技术,优化下部送风制度等,增强了炉况稳定性,提高了高炉接受高煤比的能力;同时使用高风温并降低休风率。煤比达到了170kg/t以... 详细信息

莱钢1880m3高炉通过改进喷枪系统,杜绝了管道堵塞问题,最大喷吹量达到50t/h;通过加强原燃料管理,实施多环布料技术,优化下部送风制度等,增强了炉况稳定性,提高了高炉接受高煤比的能力;同时使用高风温并降低休风率。煤比达到了170kg/t以上,入炉焦比降至350kg/t以下,利用系数达到2.6t(/m·3d)以上。

关键词：高炉喷煤煤比焦比

Improving postoperative outcomes in patients with pancreatic cancer:Inflammatory and nutritional biomarkers

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World Journal of Clinical Oncology 2025年第1期16卷 59-64页

作者： Chun-Han cheng Wen-Rui Hao Tzu-Hurng cheng Department of Medical Education Linkou Chang Gung Memorial HospitalTaoyuan 33305Taiwan Division of Cardiology Department of Internal MedicineShuang Ho HospitalMinistry of Health and WelfareTaipei Medical UniversityNew Taipei 23561Taiwan Division of Cardiology Department of Internal MedicineSchool of MedicineCollege of MedicineTaipei Medical UniversityTaipei 11002Taiwan Department of Biochemistry School of MedicineCollege of MedicineChina Medical UniversityTaichung 404328Taiwan

This editorial assesses the prognostic value of preoperative inflammatory and nutritional biomarkers in patients undergoing surgical resection for pancreatic *** et al evaluated the ability of seven biomarkers to predict postoperative recovery and long-term *** biomarkers were albumin-to-globulin ratio,prognostic nutritional index(PNI),systemic immune-inflammation index,neutrophil-to-lymphocyte ratio,platelet-to-lymphocyte ratio,nutritional risk index,and geriatric nutritional risk *** PNI was found to be a strong predictor of both overall and recurrence-free survival,underscoring its clinical relevance in managing patients with pancreatic cancer.

关键词： Pancreatic cancer Prognostic nutritional index Systemic immune-inflammation index Postoperative recovery Prognosis

Light-Responsive Nanomaterials for Cancer Therapy

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Engineering 2022年第6期8卷 18-30页

作者： xu Zhang Sheng Wang Guohui cheng Peng Yu Jin chang School of Life Sciences Tianjin UniversityTianjin 300072China Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology Tianjin 300072China

Due to its unique advantages,which include minimal invasiveness and relative clinical safety,photother-apy is considered to be a promising approach for cancer ***,the treatment efficacy of phototherapy is often restricted by the limited depth of light penetration and the low targeting effect of phototherapeutic *** emergence of light-responsive nanomaterials offers a possible approach to achieve enhanced phototherapy *** review summarizes the progress in biomedical applica-tions of light-responsive nanomaterials for cancer therapy,which include photothermal therapy(PTT),photodynamic therapy(PDT),light-responsive molecule delivery,and light-controlled combination *** prospects are also *** review aims to demonstrate the significance of light-responsive nanomaterials in cancer therapy and to provide strategies to expand the applications of phototherapy.

关键词： Light-responsive Nanomaterials Cancer Phototherapy