Chih‐Han Chang

ORCID: 0000-0003-0977-8743
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About
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Research Areas
  • Orthopaedic implants and arthroplasty
  • Dental Implant Techniques and Outcomes
  • Dental materials and restorations
  • Orthodontics and Dentofacial Orthopedics
  • Total Knee Arthroplasty Outcomes
  • Dental Radiography and Imaging
  • Bone fractures and treatments
  • Spine and Intervertebral Disc Pathology
  • Medical Imaging and Analysis
  • Endodontics and Root Canal Treatments
  • Spinal Fractures and Fixation Techniques
  • Lower Extremity Biomechanics and Pathologies
  • Hydraulic flow and structures
  • Knee injuries and reconstruction techniques
  • Automotive and Human Injury Biomechanics
  • Advanced Radiotherapy Techniques
  • Hydrology and Sediment Transport Processes
  • Fuzzy Systems and Optimization
  • Dam Engineering and Safety
  • Shoulder Injury and Treatment
  • Shoulder and Clavicle Injuries
  • dental development and anomalies
  • Pelvic and Acetabular Injuries
  • Sports injuries and prevention
  • Transportation Safety and Impact Analysis

National Cheng Kung University
2015-2025

Vanderbilt University Medical Center
2024

Chia-Yi Christian Hospital
2024

National Taipei University of Education
2011-2023

National Yang Ming Chiao Tung University
2023

National Taipei University of Nursing and Health Science
2020

National Taiwan University of Science and Technology
2017

Johns Hopkins University
2015

Himax (Taiwan)
2012-2013

University of Pennsylvania
2010-2012

Substructure coupling or component-mode synthesis may be employed in the solution of dynamics problems for complex structures. Although numerous substructure-coupling methods have been devised, little attention has devoted to employing attachment modes. In present paper various mode sets (normal modes, constraint modes) are defined. A generalized procedure is described. Those which employ modes described detail. One these shown lead results (e.g., system natural frequencies) comparable...

10.2514/6.1977-405 article EN 1977-03-21

The common marmoset (Callithrix jacchus), a highly vocal New World primate species, has emerged in recent years as promising animal model for studying brain mechanisms underlying perception, production, and cognition. present study provides quantitative acoustic analysis of large number vocalizations produced by marmosets social environment within captive colony. Previous classifications the repertoire were mostly based on qualitative observations. In variety from individually identified...

10.1121/1.4934268 article EN The Journal of the Acoustical Society of America 2015-11-01

Purpose : We conducted a clinical study to evaluate the effects of neurotization, especially comparing total contralateral C7 (CC7) root transfer hemi‐CC7 transfer, on avulsion brachial plexus injuries (BPI). Methods Forty patients who received neurotization for BPI were enrolled in this prospective study. Group 1 ( n = 20) hand function, while group 2 total‐CC7 transfer. Additional included spinal accessory, phrenic, and intercostal nerve shoulder elbow function. The results evaluated with...

10.1002/micr.22148 article EN cc-by-nc Microsurgery 2013-08-02

The use of an mesial‐occlusal‐distal (MOD) restoration in repairing a large carious lesion depends on many factors. Biomechanical performance is one the most important. It has been recognized that resistance to failure not solely biological concern (e.g. toxicity), but cavity shape, dimensions, and state stress must all be taken into account. In present study, newly developed auto‐mesh program was used generate 30 three‐dimensional (3D) finite element (FE) models simulating biomechanics for...

10.1046/j.1365-2842.2001.00721.x article EN Journal of Oral Rehabilitation 2001-06-01

Abstract Objectives: Three‐dimensional finite element (FE) models of splinted prosthetic crowns were studied and stress analyses evaluated with different types implant support, including standard, wide or two implant(s) for partial, posterior edentulous restorations. Material methods: The FE constructed based on a cadaver mandible containing the 2nd premolar 1st molar. these teeth modeled as connected disconnected to mimic non‐splinted designs, respectively. One standard was placed at...

10.1111/j.1600-0501.2005.01124.x article EN Clinical Oral Implants Research 2005-04-27

Background: Dynamic tape is one of the options for supporting foot arch in management arch-related disorders. However, its mechanical effects on remain unclear, particularly under cyclic loading. This study aims to investigate initial dynamic taping maintaining height loading among university students. Methods: Thirty-three asymptomatic participants were enrolled this study. The was applied with lower provide support, and other remained untaped as a control. without pre-tension simply laid...

10.3390/sports13050138 article EN cc-by Sports 2025-04-30

Abstract Motivation Single-cell RNA-seq normalization is an essential step to correct unwanted biases caused by sequencing depth, capture efficiency, dropout, and other technical factors. Existing methods primarily reduce arising from depth modeling count-depth relationship and/or assuming a specific distribution for read counts. However, these may lead over or under-correction due presence of beyond the restrictive assumption on models distributions. Results We present scKWARN, Kernel...

10.1093/bioinformatics/btae008 article EN cc-by Bioinformatics 2024-01-17

Endodontically treated teeth are usually weak and need prosthodontic restorations. The selection design of endodontic posts associated with the biomechanical behavior teeth. This study analyzed stress in endodontically using finite element method. model a restored tooth consists post, core, crown, dentin, periodontal ligament, cortical bone, cancellous gingiva. post is given various parameters: three diameters (1.3, 1.8, 2.3 mm), four lengths (9.7, 12.7, 15.7, 18.7 shapes (cylindrical,...

10.1142/s0219519413500127 article EN Journal of Mechanics in Medicine and Biology 2012-08-21

Background and objectives: Vertebral compression fracture is a major health care problem worldwide due to its direct indirect negative influence on health-related quality of life increased costs. Although percutaneous surgical intervention with balloon kyphoplasty or metal expansion, the SpineJack, along bone cement augmentation has been shown efficiently restore fix lost vertebral height, 21–30% body height loss reported in literature. Furthermore, effect approaches biomechanical responses...

10.3390/jpm12020253 article EN Journal of Personalized Medicine 2022-02-10

In the present study, neuroprotective potential of magnolol against ischemia-reperfusion brain injury was examined via in vivo and vitro experiments. Magnolol exhibited strong radical scavenging antioxidant activity, significantly inhibited production interleukin‑6, tumor necrosis factor‑a nitrite/nitrate (NOX) lipopolysaccharide-stimulated BV2 RAW 264.7 cells when applied at concentrations 10 50 µM, respectively. (100 µM) also attenuated oxygen‑glucose deprivation‑induced damage neonatal...

10.3892/ijmm.2018.3387 article EN International Journal of Molecular Medicine 2018-01-15

Purpose: Clinical and biomechanical studies have reported that using supportive screws a wire instead of the common Kirschner wires for modified tension band wiring improves stability fractured patellae. However, effect screw proximity on fixation patella remains unclear. Therefore numerical study was conducted to examine effects responses in simulated patellar fracture fixed two parallel cannulated anterior wiring. Methods: A model with transverse loads simulating tendon forces applied were...

10.1177/2309499018789705 article EN cc-by-nc Journal of orthopaedic surgery 2018-07-23

The aim of this study was to examine the resin bond strength on enamel treated with different fluoridated bleaching agents. Forty‐eight bovine incisors were divided into four groups receive treatments, over a 14‐d period, as follows: no treatment; 10% carbamide peroxide (CP) bleaching; CP containing 0.11% fluoride; and 0.37% fluoride. Immediately, 7 14 d after bleaching, surfaces respectively bonded composite sectioned create resin–enamel beams. These beams subjected microtensile (μTBS)...

10.1111/j.1600-0722.2009.00645.x article EN European Journal Of Oral Sciences 2009-07-14

The chin bar of a motorcycle helmet protects the rider from facial and head injuries. To evaluate protective performance bars against injuries impacts, an explicit finite element method was used to simulate Snell Memorial Foundation test proposed drop test. maximum acceleration Head Injury Criterion (HIC) were employed assess impact-absorbing capability bar. results showed that approach should be more practical than test, provided information for improving design protect shell stiffness...

10.1115/1.1318905 article EN Journal of Biomechanical Engineering 2000-07-10

Epidemiological studies indicate a strong relationship between dietary Mg intake and the incidence of sudden cardiac death. The mechanism by which leads to an increased cardiovascular disease is unknown but may involve alteration electrolyte balance. In present study, tissue levels myocardial pathology were investigated in adult hamsters fed diet containing no added Mg. Control animals same supplemented with or standard laboratory chow. Hamsters killed after 4, 8, 12, 18 days on test diet,...

10.1080/07315724.1985.10720074 article EN Journal of the American College of Nutrition 1985-01-01
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