A5101744857- GaN-based semiconductor devices and materials
- CO2 Sequestration and Geologic Interactions
- Enhanced Oil Recovery Techniques
- Liquid Crystal Research Advancements
- ZnO doping and properties
- Ga2O3 and related materials
- Semiconductor materials and devices
- Radio Frequency Integrated Circuit Design
- Thin-Film Transistor Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Hydraulic Fracturing and Reservoir Analysis
- Organic Electronics and Photovoltaics
- Semiconductor Quantum Structures and Devices
- Photocathodes and Microchannel Plates
- Semiconductor Lasers and Optical Devices
- Groundwater flow and contamination studies
- Plasma Diagnostics and Applications
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Metal and Thin Film Mechanics
- Analog and Mixed-Signal Circuit Design
- Microwave Engineering and Waveguides
- Silicon and Solar Cell Technologies
- Electron and X-Ray Spectroscopy Techniques
- Silicon Carbide Semiconductor Technologies
Chung Shan Medical University
2023-2025
National Yang Ming Chiao Tung University
2005-2024
National Taiwan University
2015-2024
National Taipei University of Business
2024
National Central University
2000-2021
National Cheng Kung University
2002-2021
AU Optronics (Taiwan)
2017-2019
Stanford University
2009-2015
Industrial Technology Research Institute
2007-2008
ITRI International
2007-2008
Experimental studies of both drainage and imbibition displacements are needed to improve our fundamental understanding multi-phase flow trapping in CO2-brine systems effectively take advantage the large storage capacity saline aquifers. Very few relative permeability measurements have been made even fewer with situ saturation measurements. Two new sets steady state two different rock samples, over a range injection rates. These show that brine displacement efficiency is strongly affected by...
This letter reports that adding nanoparticles in the negative dielectric anisotropic liquid crystal (LC) cell can exhibit properties of vertical alignment without using layers. The electro-optical this nanoparticles-induced LC are very similar to conventional homeotropic with technique be used fabricate a flexible display requiring low temperature process.
The surface free energy of a dielectric has strong influence on the performance pentacene thin-film transistors. Research shows that by matching in interface and orthorhombic phase film, field-effect mobility transistors is enhanced reaching above 2.0cm2∕Vs. authors suggested more complete first monolayer was formed upon gate with almost identical energy, benefiting carrier transportation. research also discusses mechanism effects crystalline size structural disorder film.
We have found that nanoparticles of polyhedral oligomeric silsesquioxane (POSS) can induce vertical alignment in nematic liquid crystal (LC) cells as long the doped weight percentage POSS LC is higher than ∼1%. Such nanoparticle-induced (NIVA) a very suitable technique for application low-temperature fabrication plastic displays. The dynamic process orientation from randomly parallel to was recorded, and it posited NIVA due adsorption on inner surfaces cells. influence concentration...
The spontaneous vertical alignment of the mixtures consisting nematic liquid crystals (LCs) and nanoparticles its application to hybrid-aligned (HAN) modes were investigated. LC directors aligned perpendicular nontreated indium-tin-oxide surface by adding nanoparticles. Therefore, we fabricated a nanoparticle-filled HAN cell without using layer. electro-optical properties cells are very similar those conventional containing layers. method nanoparticle-induced is suitable for fabricating...
The following paper presents a study on GaN-based light-emitting diodes (LEDs) with naturally textured surface grown by metal-organic chemical vapor deposition. utilizes well-known approach of increasing light extraction efficiency. is based formed V-shaped pits that originate from low-temperature-growth (LTG) conditions topmost p-GaN contact layer. In our experiment, the high-temperature-grown (HTG) layer was inserted between p-AlGaN electron-blocking and LTG layer, in order to suppress...
Bentonite-based engineered barriers are a key component of many repository designs for the confinement high-level radioactive waste and spent fuel. Given complexity interaction phenomena affecting barrier, coupled hydro-mechanical (HM) thermo-hydro-mechanical (THM) numerical analyses potentially useful tool better understanding their behaviour. In this context, Task (INBEB) was undertaken to study, using analyses, Interactions in Bentonite Engineered Barriers within international cooperative...
The technique, nanoparticles-induced vertical alignment (NIVA), was applied to fabricate a guest-host liquid crystal display (GH-LCD) without conventional layers. GH-LCD produced by NIVA exhibited high reflectance of approximately 59% in the voltage-off state and low threshold voltage 2.1 V(rms). is very suitable be for fabricating plastic LCD requiring temperature process, flexible timepiece using demonstrated.
Summary This paper presents an approximate semianalytical solution for predicting the average steady-state saturation during multiphase coreflood experiments across a wide range of capillary and gravity numbers. Recently, influences flow rate, gravity, subcore heterogeneity on brine displacement efficiency have been studied with 3D simulator TOUGH2 (Kuo et al. 2010). These studies demonstrated that depends numbers in predictable way. The purpose this is to provide simple (during two-phase...
Carbon dioxide capture and sequestration in saline aquifers is considered one of the most important technologies for short medium term climate change mitigation. There are many challenges wide scale deployment sequestration, including developing a sufficiently accurate fundamental understanding processes which govern movement supercritical CO2 aquifers. A method testing our underlying physics to conduct numerical simulations intended replicate multiphase flow experiment injected into brine...
A series of steady state core-scale multiphase flow experiments at a wide range fractional flows CO2 (95%, 79%, 61%, 34%, 26%) and different total rates have been simulated by using TOUGH2 MP with ECO2N simulator. brine were co-injected into the saturated core reservoir conditions (P = 12.4 MPa T= 50 °C), average carbon dioxide saturations sliced saturation along measured after state. Moreover, distributions can also be observed in simulations to study heterogeneous effect on displacement...
This investigation presents nitride-based near ultraviolet light emitting diodes (LEDs) with a meshed p-GaN layer. With 20mA injection current, it was found that forward voltages were 3.33 and 3.39V while output powers 9.0 10.6mW for the indium-tin-oxide (ITO) LED LED, respectively. The larger power is attributed to increased extraction efficiency.
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In this study, the numerical and experimental demonstrations for enhancement of light-extraction efficiency in nitride-based LEDs with randomly inverted pyramid sidewalls (IPSs) by chemical etching chip edge are presented. With 20 mA injection current, it was found that forward voltages were 3.69 3.75 V while output powers 7.07 8.95 mW conventional LED sidewall LED, respectively. The larger power...
The authors have demonstrated nitride-based near-ultraviolet (NUV) light emitting diodes (LEDs) with mesh indium tin oxide (ITO) contact layer. With 20mA injection current, it was found that forward voltages were 3.94 and 4.05V while the output powers 7.54 9.02mW for planar ITO LED LED, respectively. larger power should be attributed partially to reduced absorption of in NUV region better current spreading.
Unintentionally doped GaN epitaxial layers with a conventional single low temperature (LT) buffer layer and multiple MgxNy∕GaN were grown on sapphire substrates by metal organic chemical vapor deposition. The exhibit nuclei density, increasing the volume of defect-free regions reducing dislocations associated grain boundaries. Therefore, reveals an asymmetrical reflection (102) small full width at half maximum, higher mobility, lower background concentration, etching pit density than LT layer.
We demonstrated the formation of GaN-based nanorod (NR) structure by using self-assemble Ni nanoislands as etching mask. It was found that crystal quality GaN epilayer prepared on an NR template significantly better than with a conventional low-temperature nucleation layer. With template, it 20-mA light-emitting diode (LED) output power can be enhanced 39.8%, compared to LED.
We propose a novel pixel circuit using source‐follower structure to be independent of frequency effect blue‐phase liquid crystal displays (BPLCDs). Simulation results indicated that required gray‐level‐voltages across the BPLC could achieved accurately when proper threshold voltage driving TFT was chosen. also successfully fabricated 12.7‐inch prototype BPLCD proposed driven with field‐sequential‐color method 240 Hz.
This study addresses the delicate balance between healthcare personnel burnout and medical accessibility in context of endovascular thrombectomy (EVT) services urban areas. We aimed to determine minimum number hospitals providing EVT on rotation each day without compromising patient access. Employing an optimization model, we developed shift schedules based coverage rates volumes during pre-pandemic (2016–2018) pandemic (2019–2021) periods. Starting with a two duty per day, gradually...
New guidelines and suggestions for taking reliable effective relative permeability measurements in heterogeneous rocks are presented. The results based on a combination of high resolution 3D core-flooding simulations semi-analytical solutions the cores. Synthetic “data sets” generated using TOUGH2 subsequently used to calculate curves. A comparison between input curves “calculated” is assess accuracy “measured” values. show that, capillary number (Ncv = kLpc*A/H2μCO2qt) smaller than critical...
Human parvovirus B19 (B19V) is a single-stranded non-enveloped DNA virus of the family Parvoviridae that has been associated with various autoimmune disorders. Systemic sclerosis (SSc) an connective tissue disorder high mortality and linked to B19V infection. However, precise mechanism underlying contribution development SSc remains uncertain. This study investigated impacts functional B19V-VP1 unique region (VP1u) in macrophages bleomycin (BLE)-induced mice. Cell experimental data showed...