Explanipedia

Automatic Measurement of Neutral Foot Posture Using Three-Dimensional Scanning Open

Chien‐Hung Lin · 2025

The Rearfoot Angle (RFA) is the most commonly method used for foot posture assessment, and it is also a method for evaluating the subtalar joint neutral foot posture. The purpose of this study implements the automatic computing of leg angl…

Causal links to persisting daytime equatorial plasma bubbles over Asia-Pacific region following the geomagnetic storm on 01 December 2023 Open

P. K. Rajesh, Chien‐Hung Lin, Yuichi Otsuka, Makoto Yamamoto, Shih‐Ping Chen , et al. · 2025

A strong geomagnetic storm that occurred on 01-December-2023 triggered unusual equatorial plasma bubbles (EPB) over 100-140°E longitudes, which persisted for several hours after sunrise on the next day. FORMOSAT-7/COSMIC-2 and ground-based…

GNSS Remote Sensing of Man‐Made Space Weather Events on Consecutive Days Over East Asia Open

P. K. Rajesh, Chien‐Hung Lin, Susumu Saito, Tai‐Yin Huang, J. D. Huba , et al. · 2025

The maiden launch of Gravity‐1, labeled as the most powerful all‐solid propellent rocket yet, on 11‐January‐2024 around 0530 UT from an offshore launch platform, Yellow‐Sea, China by OrienSpace was followed by the 48th launch of H‐IIA rock…

Machine Learning Detection of Radio Occultation Electron Density Profiles Perturbed by the Equatorial Plasma Bubbles Open

Shih‐Ping Chen, Chien‐Hung Lin, P. K. Rajesh, Pin‐Hsuan Cheng, H. F. Tsai , et al. · 2025

Atomic oxygen ion retrieval from 630.0 nm airglow during geomagnetically quiet periods: a mid-latitude case study near Irkutsk Open

Yi Duann, Loren C. Chang, Yu‐Tse Chiu, Cornelius Csar Jude H. Salinas, А. В. Дмитриев , et al. · 2024

This study develops and validates three photochemical inversion models to retrieve atomic oxygen ion density ([O + ]) profiles from 630.0 nm airglow emissions in the mid-latitude ionosphere during geomagnetically quiet period. Using passiv…

The comparison and validation of photochemical models for atomic oxygen ion retrieval from ground-based observations of 630.0 nm airglow near Irkutsk Open

Yi Duann, Loren C. Chang, Yu‐Tse Chiu, Cornelius Csar Jude H. Salinas, А. В. Дмитриев , et al. · 2024

It is known that atomic oxygen ion (O⁺) is the dominant chemical constituent of the ionospheric F region, playing a crucial role in the longer lifetime of ionospheric plasma in this region. With the aim of developing a method to…

Evaluating Radio Occultation (RO) Constellation Designs Using Observing System Simulation Experiments (OSSEs) for Ionospheric Specification Open

Nicholas Dietrich, Tomoko Matsuo, C. Y. Lin, Brandon diLorenzo, Chien‐Hung Lin , et al. · 2024

Low Earth orbit (LEO) radio occultation|radio occultations (RO) constellations can provide global electron density profiles (EDPs) to better specify and forecast the ionosphere‐thermosphere (I‐T) system. To inform future RO constellation d…

Application of the Bagged Trees Technique on Retrieving the Nighttime Ionospheric Peak Density From OI‐135.6 nm Airglow Open

C. Y. Lin, Jann‐Yenq Liu, Chien‐Hung Lin, P. K. Rajesh, Yi Duann , et al. · 2024

The NASA global‐scale observations of the limb and disk (GOLD) mission is a measurement opportunity to scan the far ultraviolet airglow at ∼134–162 nm over the American Hemisphere since October 2018. The FORMOSAT‐7/COSMIC‐2 (F7/C2) satelli…

Giant ionospheric density hole near the 2022 Hunga-Tonga volcanic eruption: multi-point satellite observations Open

Jong‐Min Choi, Chien‐Hung Lin, P. K. Rajesh, Jia‐Ting Lin, Marty Chou , et al. · 2023

A giant ionospheric hole was simultaneously detected in the in situ measurements of FORMOSAT-7/COSMIC-2 (F7/C2), Ionospheric Connection Explorer (ICON), Swarm missions, and ground-based total electron content (TEC) by global navigation sat…

Deposition of Ni-W-Mo ternary alloy coating on copper via pulsed current electrodeposition with enhanced corrosion resistance and mechanical properties Open

Cheng-Tang Pan, Chun-Nan Wu, Chien‐Hung Lin · 2023

Nickel-tungsten-molybdenum (Ni-W-Mo) alloy coatings have been used extensively in micro-electro-mechanical systems (MEMS) because of their thermal stability, superior toughness, and corrosion resistance in extreme environments. The aim of …

Simultaneous observations of equatorial plasma bubbles with an all-sky airglow imager and a HF Doppler sounding system in Taiwan Open

Hiromi Sejima, Keisuke Hosokawa, Hiroyuki Nakata, Jaroslav Chum, Chien‐Hung Lin , et al. · 2023

High-Frequency Doppler (HFD) sounders at low-latitudes often detect characteristic oblique spreading Doppler traces in the spectrogram, known as Oblique Spread Structure (OSS). OSS has been expected to be generated by the dispersion of rad…

Monitoring of equatorial plasma bubbles using aeronautical navigation system: a feasibility study Open

Keisuke Hosokawa, Susumu Saito, Hiroyuki Nakata, Chien‐Hung Lin, Jia‐Ting Lin , et al. · 2023

It has long been known that field-aligned irregularities within equatorial plasma bubbles (EPBs) can cause long-range propagation of radio waves in the VHF frequencies such as those used for TV broadcasting through the so-called forward sc…

Assessing the Efficacy of Inferior Vena Cava Collapsibility Index for Predicting Hypotension after Central Neuraxial Block: A Systematic Review and Meta-Analysis Open

Ying-Jen Chang, Chien‐Cheng Liu, Yen‐Ta Huang, Jheng‐Yan Wu, Kuo‐Chuan Hung , et al. · 2023

The use of ultrasonography to predict spinal-induced hypotension (SIH) has gained significant attention. This diagnostic meta-analysis aimed to investigate the reliability of the inferior vena cava collapsibility index (IVCCI) in predictin…

The Ionospheric Three-Dimensional Electron Density Variations Induced by the 21 August 2017 Total Solar Eclipse by Using Global Ionospheric Specification Open

C. Y. Lin, Jann‐Yenq Liu, Chien‐Hung Lin, Min‐Yang Chou · 2023

Global Ionospheric Specification (GIS) is based on the Gauss–Markov Kalman filter to assimilate the slant total electron content (TEC) observed from ground-based GPS receivers and space-based radio occultation instrumentations in order to …

Variability and distribution of nighttime equatorial to mid latitude ionospheric irregularities and vertical plasma drift observed by FORMOSAT-5 Advanced Ionospheric Probe in-situ measurements from 2017 – 2020 Open

Loren C. Chang, Yueh-Chun Hsieh, Chi‐Kuang Chao, Yi Duann, Cornelius Csar Jude H. Salinas , et al. · 2023

Irregularities in ionospheric plasma distribution can result in severe scintillation and disruption to the radio frequencies utilized for satellite communications and navigation. In the low and mid latitudes, these irregularities can inclu…

Giant ionospheric density hole near the 2022 Hunga-Tonga volcanic eruption: Multi-point satellite observations Open

Jong‐Min Choi, Chien‐Hung Lin, P. K. Rajesh, Jia‐Ting Lin, Marty Chou , et al. · 2023

A giant ionospheric hole was simultaneously detected in the in-situ measurements of FORMOSAT-7/COSMIC-2 (F7/C2), Ionospheric Connection Explorer (ICON), Swarm missions, and ground-based total electron content (TEC) by global navigation sat…

Anyon condensation in the string-net models Open

Chien‐Hung Lin, F. J. Burnell · 2023

We study condensation of abelian bosons in string-net models, by constructing a family of Hamiltonians that can be tuned through any such transition. We show that these Hamiltonians admit two exactly solvable, string-net limits: one deep i…

Bilateral Simultaneous Central Retinal Vein Occlusion Secondary to COVID-19: A Case Report Open

Chien‐Hung Lin, I-Ting Sun · 2023

Herein, we report a case of bilateral simultaneous central retinal vein occlusion (CRVO) secondary to coronavirus disease 2019 (COVID-19). A 48-year-old man, with hypertension, type 2 diabetes mellitus, and stage 4 chronic kidney disease, …

Comparisons of in situ ionospheric density using ion velocity meters onboard FORMOSAT-7/COSMIC-2 and ICON missions Open

Jong‐Min Choi, Chien‐Hung Lin, Rajesh Panthalingal Krishanunni, Jaeheung Park, Young‐Sil Kwak , et al. · 2023

We report the preliminary inter-satellite comparisons of the in situ ion density measurements by the ion velocity meter (IVM) onboard FORMOSAT-7/COSMIC-2 (F7/C2) and Ionospheric Connection Explorer (ICON) missions, during the solar minimum…

Diagnostic efficacy of sonographic measurement of laryngeal air column width difference for predicting the risk of post-extubation stridor: A meta-analysis of observational studies Open

Wen-Wen Tsai, Kuo‐Chuan Hung, Yen‐Ta Huang, Chia‐Hung Yu, Chien‐Hung Lin , et al. · 2023

Background This meta-analysis aimed at assessing the diagnostic accuracy of ultrasound-measured laryngeal air column width difference (ACWD) in predicting post-extubation stridor (PES) in intubated adult patients. Methods We searched the M…

The Data Assimilation Model Global Ionospheric Specification (GIS) Open

Chi‐Yen Lin, Jann‐Yenq Liu, Chien‐Hung Lin · 2023

Observation of Global Ionosphere Responses to the Hunga Tonga-Hunga Ha'apai Eruption Open

Chien‐Hung Lin, P. K. Rajesh, Jia‐Ting Lin, Shih‐Ping Chen, Jong‐Min Choi · 2023

A Methodology of Retrieving Volume Emission Rate from Limb-Viewed Airglow Emission Intensity by Combining the Techniques of Abel Inversion and Deep Learning Open

Yi Duann, Loren C. Chang, C. Y. Lin, Yueh-Chun Hsieh, Yun-Cheng Wen , et al. · 2022

The conversion of airglow intensity to volume emission rate (VER) is a common method for studying the ionosphere, but the contribution of the intensity conversion process to the uncertainty in estimated electron or ion density is significa…

Particulate Cell Wall Materials of Lactobacillus acidophilus as Vaccine Adjuvant Open

Shu-Ching Lin, Pu-Chieh Chang, Chien‐Hung Lin, Hong‐Jen Liang, Chih‐Hung Huang · 2022

We evaluated Lactobacillus acidophilus (LA) for adjuvant application in animal vaccines. LA particles (LAPs) are made by treating LA with purification processes and high-pressure homogenization (HPH). We found that LAPs treated with HPH wi…

Ionospheric responses on the 21 August 2017 solar eclipse by using three-dimensional GNSS tomography Open

Chia‐Hung Chen, Chien‐Hung Lin, C. J. Lee, J. Y. Liu, Akinori Saito · 2022

Daily Dynamo Electric Fields Derived by Using Equatorial Ionization Anomaly Crests of the Total Electron Content Open

Ching‐Chung Cheng, Jann‐Yenq Liu, Chien‐Hung Lin, Yin‐Chen Cheng · 2022

Latitudinal distances between the two equatorial ionization anomaly (EIA) crests in total electron content (TEC) of global ionosphere map (GIM) are used to derive the daily dynamo eastward electric field by comparing the eastward electric …

Feasibility of Arterial Spin Labeling Magnetic Resonance Imaging for Musculoskeletal Tumors with Optimized Post-Labeling Delay Open

Chien‐Hung Lin, Tsyh-Jyi Hsieh, Yi-Chen Chou, Clement Kuen‐Huang Chen · 2022

Arterial spin labeling (ASL) magnetic resonance imaging (MRI) is used to perform perfusion imaging without administration of contrast media. However, the reliability of ASL for musculoskeletal tumors and the influence of post-labeling dela…

Extreme Poleward Expanding Super Plasma Bubbles Over Asia‐Pacific Region Triggered by Tonga Volcano Eruption During the Recovery‐Phase of Geomagnetic Storm Open

P. K. Rajesh, Chien‐Hung Lin, Jia‐Ting Lin, C. Y. Lin, Jann‐Yenq Liu , et al. · 2022

The Tonga volcano eruption of 15 January 2022 unleashed a variety of atmospheric perturbations, coinciding with the recovery‐phase of a geomagnetic storm. The ensuing thermospheric variations created rare display of extreme poleward‐expand…

Retrospect and prospect of ionospheric weather observed by FORMOSAT-3/COSMIC and FORMOSAT-7/COSMIC-2 Open

Jann‐Yenq Liu, Chien‐Hung Lin, Chi‐Yen Lin, I‐Te Lee, Yang‐Yi Sun , et al. · 2022

Validation of in-situ ionospheric density using FORMOSAT-7/COSMIC-2 IVM and ICON IVM Open

Jong‐Min Choi, Chien‐Hung Lin, P. K. Rajesh, Jaeheung Park, Young‐Sil Kwak , et al. · 2022

We investigate the validation of in-situ ion density measurements by the ion velocity meter (IVM) onboard F7/C2 and ICON, respectively, during the solar minimum condition of December 2019 to November 2020. The diurnal variation in ion dens…

Chien‐Hung Lin YOU? Author Swipe