Ya‐Chi Chang

ORCID: 0000-0003-0761-2686
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About
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Research Areas
  • Groundwater flow and contamination studies
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Hydraulic Fracturing and Reservoir Analysis
  • Plasma Applications and Diagnostics
  • Surface Modification and Superhydrophobicity
  • Hydrological Forecasting Using AI
  • Flood Risk Assessment and Management
  • Plasma Diagnostics and Applications
  • Magnetic Properties and Applications
  • Cell Adhesion Molecules Research
  • Monoclonal and Polyclonal Antibodies Research
  • Chalcogenide Semiconductor Thin Films
  • Copper-based nanomaterials and applications
  • Soil and Unsaturated Flow
  • solar cell performance optimization
  • Precipitation Measurement and Analysis
  • Rheumatoid Arthritis Research and Therapies
  • Organometallic Complex Synthesis and Catalysis
  • Laser Applications in Dentistry and Medicine
  • Case Reports on Hematomas
  • Endodontics and Root Canal Treatments
  • Air Quality Monitoring and Forecasting
  • Tropical and Extratropical Cyclones Research
  • Chemical Synthesis and Analysis

National Yang Ming Chiao Tung University
2004-2023

Industrial Technology Research Institute
2023

China Medical University
2018

National Applied Research Laboratories
2017-2018

Fu Jen Catholic University
2014

Yuan Ze University
2010

Cardinal Tien Hospital
2010

National Changhua University of Education
2009

Wuhan University of Technology
1994

The new pyrrolyl-linked pincer-type ligand, [C(4)H(2)NH(2-CH(2)NH(t)Bu)(5-CH(2)NMe(2))] (1), that has been employed conveniently in high yield by treatment of (2-t-butylaminomethyl)pyrrole with 1 equiv formaldehyde and dimethylamine hydrochloride each diethylether its corresponding aluminum derivative, [C(4)H(2)N(2-CH(2)NH(t)Bu)(5-CH(2)NMe(2))]AlH(2) (2), generated from Me(3)N.AlH(3) using as a solvent are described. Furthermore, reactions 2 either 1,3-diphenylpropane-1,3-dione or phenyl...

10.1021/ic9016189 article EN Inorganic Chemistry 2009-12-01

The present study combined air sampling with pulmonary function tests (PFTs) to determine both the extent of pollution proximal an electric arc furnace (EAF) and its impact on human health. mass concentrations particulate matter aerodynamic diameters less than 2.5 µm (PM ) in exposure areas were not significantly higher samples taken at a control area. However, five metal elements, Cd, Cr, Cu, Ni, Zn PM area that PFTs showed average forced vital capacity (FVC) boys was decreased decreasing...

10.1177/0748233717754173 article EN Toxicology and Industrial Health 2018-03-07

Abstract Background CTLA4Ig is a dimeric fusion protein of the extracellular domain cytotoxic T-lymphocyte 4 (CTLA4) and an Fc (Ig) fragment human IgG 1 that approved for treating rheumatoid arthritis. However, may induce adverse effects. Developing lesion-selective variant improve safety while maintaining efficacy treatment. Methods We linked albumin to N-terminus (termed Alb-CTLA4Ig) via substrate sequence matrix metalloproteinase (MMP). The binding activities biological Alb-CTLA4Ig before...

10.1186/s41232-023-00264-8 article EN cc-by Inflammation and Regeneration 2023-02-16

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Plasma-polymerized organosilicon films are deposited at room temperature by a novel double-pipe-type atmospheric-pressure plasma jet (APPJ), using hexamethyldisilazane (HMDSN) as precursor and argon (Ar) carrier gas. The surface properties of the resulted investigated function radio-frequency power position from nozzle. plasma-polymerized have been analyzed static contact angle measurement,...

10.1109/tps.2010.2044894 article EN IEEE Transactions on Plasma Science 2010-04-05

Abstract. Understanding the head distribution in aquifers is crucial for evaluation of groundwater resources. This article develops a model describing flow induced by pumping an L-shaped fluvial aquifer bounded impermeable bedrocks and two nearly fully penetrating streams. A similar scenario numerical studies was reported Kihm et al. (2007). The water level streams assumed to be linearly varying with distance. divided into subregions continuity conditions hydraulic flux are imposed at...

10.5194/hess-22-2359-2018 article EN cc-by Hydrology and earth system sciences 2018-04-19

Under the conditions of nitroxide-mediated polymerizations, novel carbohydrate polymers bearing unimolecular trivalent ligands could be achieved through a living radical process.

10.1039/c4ra04907a article EN RSC Advances 2014-01-01

Abstract Protective SiOx coating on polymeric substrates were deposited at room temperature by atmospheric pressure plasma jet (APPJ), using HMDSO (Hexamethylsiloxane) as monomer and argon (Ar) carrier gas, have been investigated for the surface properties a function of operational parameters including in RF power, substrate temperature, flow rate. The improved hardness direct APPJ determined pencil test related to chemical composition morphology coated layers. films analyzed Fourier...

10.1002/jccs.201000177 article EN Journal of the Chinese Chemical Society 2010-10-01

Abstract A novel atmospheric pressure plasma jet (APPJ) was used to deposit titanium dioxide (TiO 2 ) particles in this investigation. This achieved by controlling the operating parameters a low temperature, capacitive radio frequency which tetraisopropoxide (TTIP) precursor vaporized with an argon/oxygen carrier gas, and then exposed ambient air. The influence of power oxygen gas flow rate result control surface morphology, microstructure, chemical composition has been investigated. APP...

10.1002/jccs.201000176 article EN Journal of the Chinese Chemical Society 2010-10-01

Abstract. Typhoons are accompanied by heavy rainfall and cause loss of life property. Hydrological ensemble prediction systems can provide decision makers with hydrological information, such as peak stage time, some lead time. This information assists in taking the necessary measures to prevent mitigate disasters. study proposes a system that includes numerical weather models perform forecasts hydrologic produce assessments surface runoff associated flooding. However, spatiotemporal...

10.5194/hess-2017-264 article EN cc-by 2017-05-29

Abstract This study proposes a new mathematical model for the hydraulic head distribution induced by tidal wave in fractured coastal aquifers. The flow aquifer is described adopting well‐known dual‐porosity (DP) concept. It simply describes interaction of between fractures and matrix blocks. past studies commonly used lumped‐distributed approach, first‐order mass transfer approximation, to reflect such interaction. Herein, we incorporate generalized term (GTT) into DP model. weighting factor...

10.1002/hyp.14976 article EN Hydrological Processes 2023-09-28

We demonstrate a 10 ps, 40 GHz repetitive rational harmonic mode-locked optical pulse-train generated from an active fiber ring laser by using gain-switched Fabry-Perot diode as gain modulator.

10.1109/ofc.2003.1247463 article EN Journal of Lightwave Technology 2004-04-23

Abstract. Understanding the head distribution in aquifers is crucial for evaluation of groundwater resources. This article develops an analytical model describing flow induced by pumping L‐shaped fluvial aquifer bounded impermeable bedrocks and two nearly fully penetrating streams. A similar scenario numerical studies was reported Kihm et al. (2007). The water level streams assumed to be linearly varying with distance. divided into sub-regions continuity conditions hydraulic flux are imposed...

10.5194/hess-2017-487 preprint EN cc-by 2017-09-04

Low cost manufacturing of Cu(In,Ga)Se <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> (CIGS) films for high efficiency PV devices by the innovative Field-Assisted Simultaneous Synthesis and Transfer (FASST®) process is reported. The FASST® a two-stage reactive transfer printing method relying on chemical reaction between two separate precursor to form CIGS, one deposited substrate other plate in first stage. In second stage these...

10.1109/pvsc.2008.4922495 article EN Conference record of the IEEE Photovoltaic Specialists Conference 2008-05-01

10.5194/hess-2017-264-ac1 preprint 2017-08-07

10.5194/hess-2017-264-ac2 preprint EN 2017-08-17
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