A5101592377- Gyrotron and Vacuum Electronics Research
- Microwave Engineering and Waveguides
- Pulsed Power Technology Applications
- Semiconductor materials and devices
- Particle accelerators and beam dynamics
- Impact of Light on Environment and Health
- Astrophysics and Star Formation Studies
- Astrophysical Phenomena and Observations
- Ocular and Laser Science Research
- Colorectal Cancer Treatments and Studies
- Advanced Memory and Neural Computing
- Nanoplatforms for cancer theranostics
- Advancements in Semiconductor Devices and Circuit Design
- Microwave and Dielectric Measurement Techniques
- Phase Equilibria and Thermodynamics
- Ferroelectric and Negative Capacitance Devices
- Urinary Tract Infections Management
- Advanced optical system design
- Porphyrin and Phthalocyanine Chemistry
- Stellar, planetary, and galactic studies
- Photodynamic Therapy Research Studies
- Lung Cancer Treatments and Mutations
- Advanced Data Storage Technologies
- Metamaterials and Metasurfaces Applications
- Ferroelectric and Piezoelectric Materials
Feng Chia University
2024
Taipei Veterans General Hospital
2023
National Tsing Hua University
1991-2020
Macronix International (Taiwan)
2009
The gyrotron backward-wave oscillators (gyro-BWOs) feature a continuous frequency tunability in single transverse mode, while the step-tunable gyrotrons are famous for their ultrawide hopping between various modes. This study proposed reflective gyro-BWO with piecewise-continuous and wide tunability. is tunable one mode can be switched to another by changing applied magnetic field or/and beam voltage. Meanwhile, high-order axial modes (HOAMs) inside cavity low-Q factor could broaden...
Background: Traditional Chinese medicine (TCM) is widely used by ethnic communities. TCM covered Taiwan’s National Health Insurance (NHI) program. We evaluated the efficacy and outcomes of complementary herbal (CHM) therapy in patients with cancer. Methods: This population-based cohort study was conducted using data who received a cancer diagnosis between 2005 2015 Taiwan. Eligible were divided into standard CHM groups. The group further low cumulative dosage (LCD), medium (MCD), high (HCD)...
The coupling of the electric and magnetic fields leads to a strong interplay in materials' permittivity permeability. Here, we proposed specially designed cavity, called mu cavity. consisting mushroom structure inside cylindrical resonator, is exclusively sensitive permeability, but not permittivity. It decouples electromagnetic properties allows an accurate measurement With help epsilon these two cavities jointly determine complex permeability materials at microwave frequencies. Homemade...
We propose an unconventional electron gun structure in which the emitter is located on a concave cathode surface with non-uniform electric field. Such design violates intuition that should place close to uniform field reduce velocity spread. The commonly employed guide based adiabatic condition predicts huge spread of 24%, but simulation using EGUN code and verified CST particle studio shows very low 2.8%. Examining magnetic moment kinetic energy beam reveals electrons experience relatively...
Sub-40nm body-tied FinFET BE-SONOS NAND Flash is studied extensively. offers efficient hole tunneling erase and excellent data retention. When integrated into a structure, the inherent field enhancement (FE) effect around fin tip provides very faster program/erase speed. However, non-uniform injection also greatly complicates operation of BE-SONOS. In this work, switching mechanisms at tip, sidewall bottom corner are examined in detail, thus providing insights to optimize geometry. For first...
A novel high-performance metal-insulator-metal (MIM) capacitor for analog and radio-frequency (RF) applications has been developed using SrTiO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> /Al xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O /SrTiO laminate as the dielectric. very high capacitance density of 19.13 fF/µm <sup xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> achieved due to perovskite (STO) with a dielectric...
The motivation for Vehicular Visible Light Communication (VVLC) is the demand automotive communication and restricted bandwidth of Radio Frequency (RF) systems. VLC a potential possibility Vehicle-to-Vehicle (V2V) Vehicle-to-Infrastructure (V2I) Connectivity due to wide use Light-Emitting Diodes (LEDs). Within this work, novel low-beam headlamp designed adheres ECE R112 standard. proposed design comprises LED, ellipsoid reflector, mirror, baffle, lens from which optical path power are...
Hot carrier damage, especially by hot holes, limits the reliability performance of nonvolatile memories (NVMs). The damage creates localized traps in tunnel oxide and interface at oxide/silicon interface. In this paper, we propose a novel method to independently quantify trapped charges We applied new probe degradation nitride trapping memory found (i) (N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OT</sub> ) capture both electrons (ii)...
We design a low beam voltage MIG for the proposed reflective gyro-BWO system to study positronium HFS. Our provides an electron with pitch factor ranged from 0.8 2.0 and transversal velocity spread of ~ 7% depending on applied fields in simulation. The wide working range suggests that our can serve as good source.
Performance of a fundamental cyclotron harmonic, TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> -mode gyrotron traveling-wave amplifiers (gyro-TWTs) is studied theoretically under the marginal stability criterion. The interaction circuit shown in Fig. 1. As illustrated 2 for parameters Table I, absolute instabilities on both lower and higher order modes at second harmonic frequency present severe constraints to stable operating...
Abstract Wiggling structures in a bipolar outflow may be attributed to orbital motion of binary system or precession an accretion disk perturbed by companion. The shocked knots along the axis display morphology with either mirror symmetry due point resulted from precession. Using Submillimeter Array (SMA), our CO (2-1) and SiO (5-4) observations show wiggling collimated driven NGC 1333 IRAS 2A Class 0 protostar ( d ~ 200 pc). By fitting peak positions emission knots, we can examine lateral...
We design and fabricate a novel electron gun conduct an experiment using tapered structure for the reflective gyrotron backward-wave oscillator (gyro-BWO). The interaction provide ideal beam-wave coupling which enhances efficiency over broad bandwidth. cutoff section mild tapers in cavity region help to generate 203 GHz waves operating at TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">02</sub> mode with peak power of 30% wide bandwidth 8.5...