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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

Digital exchange attributes and the risk of closure

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Blockchain(Research and Applications) 2023年第2期4卷 136-145页

作者： Seung Ah lee george Milunovich Department of Actuarial Studies and Business Analytics Macquarie UniversitySydneyNSW2109Australia

Presently,there are over 500 cryptocurrency exchanges worldwide and more than 19,700 different *** the fact that cryptocurrency trading is possible via private peer-to-peer transactions,more than 90%of trading occurs on organised exchanges,which provide convenience and ***,centralised cryptocurrency exchanges are regarded as high-value targets by criminals and are often victims of *** this paper,we investigate the risk of cryptocurrency exchange closures and develop predictive models to forecast which markets will close down and which ones will remain active using publicly available *** models perform well and reach a high level of classification *** trading volume,the availability of public information on exchange staff,exchange lifetime,and several cybersecurity features are identified as key attributes in predicting exchange ***,our models do not account for all sources of risk,e.g.,potential fraud and mismanagement of client funds committed by the exchanges themselves,and market participants are encouraged to carefully consider where and how they store their digital assets.

关键词： cryptocurrency markets Digital exchange closure classification Predictive models

Urban china in Transformation:Hybrid Economy,Juxtaposed Space,and New Testing Ground for Geographical Enquiries

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chinese Geographical Science 2011年第1期21卷 1-16页

作者： george c S LIN Department of Geography University of Hong Kong

History has brought us into a significant moment when the majority of the human kind has taken up resi-dence in urban settlements. The focus of global urbanization has shifted to the developing world and the center of manufacturing is no longer confined to the Global North. This paper provides a periodical assessment of the current status of china's urban transformation in the global context of a shifting emphasis of industrialization and urbaniza-tion. china's phenomenal urban transformation deserves a special attention not only because of its unparalleled scale and speed but also because of its distinct trajectory of growth that does not conform to normal theoretical ex-pectations. The results of assessment revealed an urban economy with remarkable hybridity, a society that is in-creasingly stratified, polarized, and segregated, and a juxtaposed urban space undergoing restless and pervasive transformation. A decentering world should entail a decentering knowledge production. A critical reflection upon the chinese patterns and processes of urban transformation has identified 4 main issues with great potentials for inno-vative knowledge production, namely: 1) privatization and economic development; 2) state, society, and space; 3) urbanization of capital, labor, and land; and 4) the environment and chinese political ecology. The paper closes with the remark that a rapidly transforming urban china has presented itself as a fertile and resourceful testing ground for critical and innovative geographic enquiries.

关键词： urban geography urbanization chinese cities political economy china

Asymptotic Properties of a Modified Semi-Parametric MLE in Linear Regression with Right-censored Data

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Acta Mathematica Sinica,English Series 2002年第2期18卷 405-416页

作者： WONG george Y.c. Strang cancer Prevention center.428 E 72nd Street.New York.NY 10021.USA

consider a linear regression model Y=β'X+*** Y may be right censored and the cdf F+o of e is *** show that a modified semi-parametric *** by .is strongly consistent under certain regularity *** F_o is discontinuous,then P(≠βi.o.)=0, which means that P(=βif the sample size is large)=*** latter property has not been reported for the existing *** contrast,most estimators,such as the Buckley-James estimator and M-estimators .satisfy that P(≠βi.o.)=1.

关键词： consistency Super-efficiency Semi-parametric MLE

Regeneration of pitch pine (Pinus rigida) stands inhibited by fire suppression in Albany Pine Bush Preserve, New York

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Journal of Forestry Research 2019年第1期30卷 233-242页

作者： chang-Seok lee george R.Robinson Ingrid P.Robinson Hansol lee Department of Bio and Environment Technology Seoul Women's University State University of New York at Albany State University of New York

The Pine Barrens in New York State are dominated by pitch pine(Pinus ridgida) and scrub oaks(Quercus ilicifolia and Q. prinoides). With fire suppression over the last 90 years or so, P. rigida regeneration has become sparse, even in areas set aside to preserve this type of vegetation. We evaluated the effects of fire and an alternative disturbance(mechanical removal of vegetation)for increasing P. rigida regeneration in the Albany Pine Bush Preserve in eastern New York State. By comparing cover, diameter and height of P. rigida, Q. ilicifolia, ***, and Vaccinium spp.(blueberry) growing on the sites with a known fire history, we documented structural and compositional changes in the vegetation since its establishment. We also compared sites on which Quercus sprouts were controlled through mechanical removal. In the years following a disturbance, height and cover of Q. ilicifolia increased continuously and the species became increasingly competitive. Both the density of P. rigida seedlings and Vaccinium cover decreased significantly as the diameter and height of Quercus increased. Our results confirmed that the dominance by P. rigida could be attributed to periodic fires at intervals of 20–25 years. We conclude that removing Q. ilicifolia can favor P. rigida dominance on the barren without fire by releasing pine seedlings from competition.

关键词： Fire Mechanical removal Pine barren Pinus rigida Quercus ilicifolia Quercus prinoides Regeneration Safe site

LAVRENTIEV'S REGULARIZATION METHOD FOR NONLINEAR ILL-POSED EQUATIONS IN BANAcH SPAcES

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Acta Mathematica Scientia 2018年第1期38卷 303-314页

作者： Santhosh george c.D.SREEDEEP Department of Mathematical and computational Sciences NIT Karnataka

In this paper, we deal with nonlinear ill-posed problems involving m-accretive mappings in Banach spaces. We consider a derivative and inverse free method for the imple- mentation of Lavrentiev regularization method. Using general HSlder type source condition we obtain an optimal order error estimate. Also we consider the adaptive parameter choice strategy proposed by Pereverzev and Schock （2005） for choosing the regularization parameter.

关键词： nonlinear ill-posed problem Banach space Lavrentiev regularization m-accretive mappings adaptive parameter choice strategy

Effects of flavone on the oxidation-induced injury of retinal pigment epithelium cells

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International Journal of Ophthalmology(English edition) 2010年第2期3卷 99-103页

作者： george c Y chiou Institute of Ocular Pharmacology College of MedicineTexas A&M Health Science CenterCollege StationTX 77843USA

AIMTo investigate the effect of flavone on oxidation-induced injury in retinal pigment epithelium cells.

关键词： flavone age-related macular degeneration retinal pigment epithelium oxidation

Effect of flavone on the ocular blood flow and formation of choroidal neovascularization

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International Journal of Ophthalmology(English edition) 2010年第2期3卷 95-98页

作者： george c Y chiou Institute of Ocular Pharmacology College of MedicineTexas A&M Health Science CenterCollege StationTX 77843USA

AIMTo investigate the effect of flavone on ocular blood flow in rabbit eyes and the formation of choroidal neovascularization (cNV) in rat model of age-related macular degeneration (AMD).

关键词： flavone age-related macular degeneration ocular blood flow choroidal neovascularization

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