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真空系统内容积测定的简易方法

真空 1978年第3期 78-79页

作者： c-o lee J.H Peauey 陆国柱

Single-cell and spatial omics:exploring hypothalamic heterogeneity

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Neural Regeneration Research 2025年第6期20卷 1525-1540页

作者： Muhammad Junaid Eun Jeong lee Su Bin Lim Department of Biochemistry&Molecular Biology Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Graduate School of Ajou UniversitySuwonSouth Korea Department of Brain Science Ajou University School of MedicineSuwonSouth Korea

Elucidating the complex dynamic cellular organization in the hypothalamus is critical for understanding its role in coordinating fundamental body functions. over the past decade, single-cell and spatial omics technologies have significantly evolved, overcoming initial technical challenges in capturing and analyzing individual cells. These high-throughput omics technologies now offer a remarkable opportunity to comprehend the complex spatiotemporal patterns of transcriptional diversity and cell-type characteristics across the entire hypothalamus. current single-cell and single-nucleus RNA sequencing methods comprehensively quantify gene expression by exploring distinct phenotypes across various subregions of the hypothalamus. However, single-cell/single-nucleus RNA sequencing requires isolating the cell/nuclei from the tissue, potentially resulting in the loss of spatial information concerning neuronal networks. Spatial transcriptomics methods, by bypassing the cell dissociation, can elucidate the intricate spatial organization of neural networks through their imaging and sequencing technologies. In this review, we highlight the applicative value of single-cell and spatial transcriptomics in exploring the complex molecular-genetic diversity of hypothalamic cell types, driven by recent high-throughput achievements.

关键词： cellular diversity hypothalamus multi-omics single-cell transcriptomics spatial transcriptomics

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

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几种来源不同的沥青对皮肤作用的研究

上海第一医学院学报 1957年第2期 93-105页

作者：许扬三郭联杰王蘅文李志旺上海第一医学院卫生系中国医学科学院

(一)四种来源不同的沥青(鞍山煤焦油沥青、西北玉门石油沥青、大连石油沥青、和美国亚细亚公司石油沥青)经涂抹小白鼠的实验证明具有引起皮肤各种的病理变化的作用。其中包括慢性渗出性皮炎;慢性炎性上皮结缔组织增生;良性皮肤乳头状瘤... 详细信息

(一)四种来源不同的沥青(鞍山煤焦油沥青、西北玉门石油沥青、大连石油沥青、和美国亚细亚公司石油沥青)经涂抹小白鼠的实验证明具有引起皮肤各种的病理变化的作用。其中包括慢性渗出性皮炎;慢性炎性上皮结缔组织增生;良性皮肤乳头状瘤;皮肤鳞状细胞癌。此外也引起了少数的肉瘤和“肌母细胞痛”。皮肤瘤发生的潜伏期由62天至406天不等。(二)光感作用可以加剧及加速煤焦油沥青皮肤炎的进展,和发炎皮肤的角化现象。至于对沥青致癌作用本实验未能证实其有显著的影响。(三)根据四种来源不同的沥青所引起皮肤良性与恶性病变的发病率和潜伏期的长短,可将其毒性的强弱顺序排列如下:(1)鞍山煤焦油沥青,(2)美国亚细亚公司石油沥青,(3)大连石油沥青(苏联原油),(4)西北玉门石油沥青。即煤焦油沥青毒性远较石油沥青为强。国产石油沥青的毒性较外产石油沥青的毒性为弱。

关键词：皮肤发病数病理变化解剖部位皮肤瘤乳头状瘤煤焦油沥青煤沥青原油石油肌肉瘤肌肉组织肿瘤

Ru/NiMnB spherical cluster pillar for highly proficient green hydrogen electrocatalyst at high current density

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Journal of Energy chemistry 2025年第1期100卷 397-408页

作者： Md Ahasan Habib Shusen Lin Mehedi Hasan Joni Sumiya Akter Dristy Rutuja Mandavkar Jae-Hun Jeong Jihoon lee Department of Electronic Engineering College of Electronics and Information Kwangwoon University

Advanced oER/HER electrocatalytic alternatives are crucial for the wide adaptation of green hydrogen ***,Ru/NiMnB spherical cluster pillar （ScP）,denoted as Ru/NiMnB,is synthesized using a combination of electro-deposition and hydrothermal *** investigation of Ru doping in the NiMnB matrix revealed significant improvements in electrocatalytic *** Ru/NiMnB ScPs demonstrate superior oER/HER activity with low overpotentials of 150 and 103 mV at 50mA/cm2in 1 M KoH,making them highly competitive with state-of-the-art ***,the Ru/NiMnB ScPs exhibit a low 2-E cell voltage of 2.80 V at ultra-high current density of 2,000 m A/cm2in 1 M KoH,outperforming the standard benchmark electrodes of Ruo2||Pt/c,thereby positioning Ru/NiMnB as one of the best bifunctional *** ScPs exhibit exceptional high-current characteristics,stability and corrosion resistance,as evidenced by continuous operation at 1,000 mA/cm2high-current density for over 150 h in 6 M KoH at elevated temperatures under harsh industrial *** a small amount of Ru incorporation significantly enhances the electrocatalytic performances of NiMnB,attributed to increased active sites and improved intrinsic properties such as conductivity,adsorption/desorption capability and reaction ***,Ru/NiMnB ScPs present a promising bi-functional electrode concept for efficient green H2production.

关键词： Potassium hydroxide

Prominent cycling reversibility and kinetics enabled by caTio3 protective layer on Zn metal for aqueous Zn-ion batteries

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Journal of Energy chemistry 2025年第1期100卷 245-258页

作者： Gaeun lee Yong Nam Ahn Seongjoon So chanwoo Park Jong-Seong Bae Taehyun Park Il Tae Kim Jaehyun Hur School of chemical Biological and Battery Engineering Gachon University Seongnam Busan center Korea Basic Science Institute

Aqueous Zn-ion batteries （AZIBs） have received considerable attention owing to their various advantages such as safety,low cost,simple battery assembly conditions,and high ionic ***,they still suffer from serious problems,including uncontrollable dendrite growth,corrosion,hydrogen evolution reaction （HER） from water decomposition,electrode passivation,and unexpected *** creation of a uniform artificial nanocrystal layer on the Zn anode surface is a promising strategy for resolving these ***,we propose the use of a perovskite caTio3（cTo） protective layer on Zn（cTo@Zn） as a promising approach for improving the performance of *** cTo artificial layer provides an efficient pathway for Zn ion diffusion towards the Zn metal because of the high dielectric constant （εr=180） and ferroelectric characteristics that enable the alignment of dipole moments and redistribute the Zn2+ions in the cTo *** avoiding the direct contact of the Zn anode with the electrolyte solution,the uneven dendrite growth,corrosion,parasitic side reactions,and HER are mitigated,while cTo retains its mechanical and chemical robustness during ***,cTo@Zn demonstrates an improved lifespan in a symmetric cell configuration compared with bare ***@Zn shows steady overpotential （～68 m V） for 1500 h at 1 mA cm-2/0.5 mA h cm-2,excelling bare ***,when paired with the V2o5-c cathode,the cTo@Zn//V2o5-c full battery delivers 148.4 mA h g-1（based on the mass of the cathode） after 300 *** study provides new insights into Zn metal anodes and the development of high-performance AZIBs.

关键词： Perovskite

Mechanical and low-cycle fatigue behavior of stainless reinforcing steel for earthquake engineering applications

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Earthquake Engineering and Engineering Vibration 2010年第3期9卷 449-457页

作者： Yihui Zhou Yu-chen oU George c. lee Jerome S. o＇connor Department of civil Structural and Environmental Engineering University at Buffalo Buffalo NY U.S.A. Department of construction Engineering Taiwan University of Science and Technology Taipei Chinese Taiwan Department of civil Structural and Environmental Engineering University at Buffalo Buffalo NY U.S.A. Transportation Research MCEER University at Buffalo Buffalo NY U.S.A.

Use of stainless reinforcing steel （SRS） in reinforced concrete （Rc） structures is a promising solution to corrosion issues. However, for SRS to be used in seismic applications, several mechanical properties need to be investigated. These include specified and actual yield strengths, tensile strengths, uniform elongations and low-cycle fatigue behavior. Three types of SRSs （Talley S24100, Talley 316LN and Talley 2205） were tested and the results are reported in this paper. They were compared with the properties of A706 carbon reinforcing steel （RS）, which is typical for seismic applications, and MMFX II, which is a high strength, corrosion resistant RS. Low-cycle fatigue tests of the RS coupons were conducted under strain control with constant amplitude to obtain strain life models of the steels. Test results show that the SRSs have slightly lower moduli of elasticity, higher uniform elongations before necking, and better low-cycle fatigue performance than A706 and MMFX II. All five types of RSs tested satisfy the requirements of the AcI 318 code on the lower limit of the tensile to yield strength ratio. Except Talley 2205, the other four types of RSs investigated meet the AcI 318 requirement that the actual yield strength does not exceed the specified yield strength by more than 18 ksi （124 MPa）. Among the three types of SRSs tested, Talley S24100 possesses the highest uniform elongation before necking, and the best low-cycle fatigue performance.

关键词： Stainless reinforcing steel low-cycle fatigue seismic applications corrosion resistance

Traveling wave effect on the seismic response of a steel arch bridge subjected to near fault ground motions

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Earthquake Engineering and Engineering Vibration 2007年第3期6卷 245-257页

作者：徐艳 George c lee McEER University at BuffaloNY 14260 USA Department of Bridge EngineeringTongji UniversityShanghai 200092China McEER University at BuffaloNY 14260USA

In the 1990s, several major earthquakes occurred throughout the world, with a common observation that near fault ground motion （NFGM） characteristics had a distinct impact on causing damage to civil engineering structures that could not be predicted by using far field ground motions. Since then, seismic responses of structures under NFGMs have been extensively examined, with most of the studies focusing on structures with relatively short fundamental periods, where the traveling wave effect does not need to be considered. However, for long span bridges, especially arch bridges, the traveling wave （only time delay considered） effect may be very distinct and is therefore important. In this paper, the results from a case study on the seismic response of a steel arch bridge under selected NFGMs is presented by considering the traveling wave effect with variable apparent velocities. The effects of fling step and long period pulses of NFGMs on the seismic responses of the arch bridge are also discussed.

关键词： traveling wave effect arch bridge near fault ground motion fling step long period pulses

Multiple linear regression models of urban runoff pollutant load and event mean concentration considering rainfall variables

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Journal of Environmental Sciences 2010年第6期22卷 946-952页

作者： Marla c.Maniquiz Soyoung lee lee-Hyung Kim Department of civil & Environmental Engineering Kongju National University

Rainfall is an important factor in estimating the event mean concentration （EMc） which is used to quantify the washed-off pollutant concentrations from non-point sources （NPSs）. Pollutant loads could also be calculated using rainfall, catchment area and runoff coefficient. In this study, runoff quantity and quality data gathered from a 28-month monitoring conducted on the road and parking lot sites in Korea were evaluated using multiple linear regression （MLR） to develop equations for estimating pollutant loads and EMcs as a function of rainfall variables. The results revealed that total event rainfall and average rainfall intensity are possible predictors of pollutant loads. overall, the models are indicators of the high uncertainties of NPSs; perhaps estimation of EMcs and loads could be accurately obtained by means of water quality sampling or a long term monitoring is needed to gather more data that can be used for the development of estimation models.

关键词： event mean concentration (EMc) multiple linear regression model load non-point sources rainfall urban runoff