Effect of Depth of Conical-Shaped Tympanic Membrane on Middle-Ear Sound Transmission
スポンサーリンク
概要
- 論文の詳細を見る
The shape of the tympanic membrane (TM) is often changed due to middle-ear diseases or middle-ear surgery. ・Although it is assumed that this change in shape affects the sound transmission of the middle ear, the degree of this effect remains unclear. In this study, three-dimensional finite-element models of the middle ear with different depths of the conical-shaped portion of the TM were established, and the effects of the depth, Young's modulus and thickness of the TM on middle-ear sound transmission were analyzed. The efficiency of sound transmission was found to decrease when the depth of the conical-shaped portion of the TM decreased because of a decline in the efficiency of transmission of the vibration of the TM to the ossicles. The transfer function was also influenced by the Young's modulus and thickness of the TM. Thus, when substitutional materials, whose Young's modulus or thickness was appropriately greater than those of the normal TM, were used in TM reconstruction, the efficiency improved, even if its shape was flat.
- 一般社団法人日本機械学会の論文
- 2001-12-15
著者
-
KOBAYASHI Toshimitsu
Department of Otolaryngology, Nagasaki University School of Medicine
-
Kobayashi Toshimitsu
Department Of Cardiovascular Surgery Tohoku University Graduate School Of Medicine
-
WADA HIROSHI
Department of Surgery, Graduate School of Medicine, Osaka University
-
Wada Hiroshi
Department Of Cardiovascular Science And Medicine Chiba University Graduate School Of Medicine
-
Kobayashi T
Department Of Cardiovascular Surgery Tohoku University Graduate School Of Medicine
-
KOIKE Takuji
Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communicatio
-
Koike Takuji
Department Of Mechanical Engineering And Intelligent Systems The University Of Electro-communication
-
Wada H
Department Of Bioengineering And Robotics Tohoku University
-
Wada Hiroshi
Department Of Bioengineering And Robotics Tohoku University
-
Koike Takuji
Department Of Mechanical Engineering And Intelligent Systems The University Of Electro-communication
-
Kosho Tomoki
Department Of Medical Genetics Shinshu University School Of Medicine
関連論文
- Presence of Genes for β-Lactamases of Two Different Classes on a Single Plasmid from a Clinical Isolate of Serratia marcescens
- Clinical manifestations in patients with SOS1 mutations range from Noonan syndrome to CFC syndrome
- A novel KCNQ4 one-base deletion in a large pedigree with hearing loss : implication for the genotype-phenotype correlation
- A case of hepatocellular carcinoma with multiple lung, spleen, and remnant liver metastasis successfully treated by combination chemotherapy with the novel oral DPD-inhibiting chemotherapeutic drug S-1 and interferon-α
- Organic Field-effect Transistors Based on Solution-processible Dibenzotetrathiafulvalene Derivatives
- (Tetrathiafulvalene)(tetracyanoquinodimethane) as a Contact Material for n-Channel and Ambipolar Organic Transistors
- Syntheses and Properties of Oligothiophenes with Cyano and Hexyl Groups
- Cardiomyocytes Fuse with Surrounding Non-Cardiomyocytes and Re-enter the Cell Cycle(The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- PE-197 Adult Cardiac Sca-1 Positive Cells Differentiate into Beating Cardiomyocytes(Development and Differentiation 1 (M) : PE34)(Poster Session (English))
- OE-359 Calcium/Calmodulin and Calcineurin Signaling is Involved in Cell Fusion between Adult Stem Cells and Cardiomyocytes(Development and Differentiation 2 (H) : OE45)(Oral Presentation (English))
- OE-105 Granulocyte-colony stimulating factor prevents transition from left ventricular hypertrophy to diastolic heart failure in hypertensive rats(Heart Failure, Basic 1 (M) : OE13)(Oral Presentation (English))
- Rat Neonatal Cardiomyocytes Fuse with Mammalian Somatic Cellsand Reenter Cell Cycle
- Mechanical Stress and Calcium Signaling Involve Trans-Differentiation of Skeletal Muscle Derived Cells
- PE-602 Homing and Differentiation of Intravenously Transplanted Cardiac Side Population Cells in Injured Myocardium(Molecular biology, myocardium-2 (M) PE106,Poster Session (English),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulati
- PE-564 Trichostatin A Induces Differentiation of Cardiac Side Population Cells into Beating Cardiomyocytes(Development and differentiation-3 (M) PE97,Poster Session (English),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Socie
- PE-533 Distinct Distribution of Cardiac Sca-1 Positive Cells in Normal and Ischemic Hearts(Regeneration (angionenesis/myocardial regeneration)-4 (M) PE90,Poster Session (English),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation S
- PE-107 Pluripotency of Clonal Expanded Sca-1 Expressing Cells Derived from the Adult Murine Heart(Development and differentiation-2 (M) PE18,Poster Session (English),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)
- 3 Cardiac Sca-1+ and Side Population Cells in Cardiac Regeneration(Cardiac Regeneration,AHA-JCS Joint Symposium (M),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)
- Dominance of Cardiac Phenotypes in the Fused Cells between Cardiomyocytes and Mature Somatic Cells in vivo(Development and Differentiation 3 (M), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- Cardiac SP Cells Differentiate into Beating Cardiac Myocytes in vitro(Development and Differentiation 2 (M), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- OE-360 Cardiomyocytes Fuse with Somatic Cells in Injured Heart(Development and Differentiation 2 (H) : OE45)(Oral Presentation (English))
- OE-207 Granulocyte-Colony Stimulating Factor Stimulates Preexisting Endothelial Cells and Promotes Blood Vessel Formation in vitro(Angiogenesis 1 (M) : OE26)(Oral Presentation (English))
- Potassium ion recycling pathway via gap junction systems in the mammalian cochlea and its interruption in hereditary nonsyndromic deafness
- INTERACTION OF THE INNER EAR MOTOR PROTEIN PRESTIN WITH CHLORIDE STUDIED BY ISOTHERMAL TITRATION CALORIMETRY(2A1 Micro & Nano Biomechanics IV)
- MISFOLDING AND MISLOCALIZATION BY MUTATIONS OF THE MOTOR PROTEIN PRESTIN(2A1 Micro & Nano Biomechanics IV)
- Effects of Mutation in the Conserved GTSRH Sequence of the Motor Protein Prestin on Its Characteristics(Bioengineering)
- Relationship between Fluorescence Intensity of GFP and the Expression Level of Prestin in a Prestin-Expressing Chinese Hamster Ovary Cell Line(Bioengineering)
- Stable Expression of the Motor Protein Prestin in Chinese Hamster Ovary Cells(Bioengineering)
- Malignant Lymphoma Arising from Heterotopic Warthin's Tumor in the Neck : Case Report and Review of the Literature
- HEAT-STRESS ACTUATED MECHANISM OF THE INNER EAR PROTECTING IT FROM TRAUMATIC NOISE EXPOSURE(2A1 Micro & Nano Biomechanics IV)
- A study of bone mineral density and physical growth in very low birth-weight infants after their discharge from hospital
- Effects of dividing frequency in filtering for dichotic presentation to reduce masking to a consonant by the preceding vowel
- Effects of Contralateral Noise on the Measurement of Auditory Threshold
- Experimental Assessment of the Performance of an Electromagnetic Hearing Aid in Human Temporal Bones(Bioengineering)
- Effects of Individual Differences in Size and Mobility of the Middle Ear on Hearing(Bioengineering)
- High-Speed Video Observation of Tympanic Membrane Rupture in Guinea Pigs(Bioengineering)
- PJ-471 Polyol Pathway Activation is More Contributed to Impaired Shear Stress-induced Endothelial Nitric Oxide Production in Hyperglycemia Than Oxidative Stress(Diabetes/Obesity/Metabolic syndrome(11)(H),Poster Session(Japanese),The 72nd Annual Scientific
- PJ-690 Determinants of In-hospital Death and Rupture in Stanford B Aortic Dissections(Peripheral circulation/Vascular disease-6, The 71st Annual Scientific Meeting of the Japanese Circulation Society)
- Intravenous Myocardial Contrast Echocardiography and Multi-Detector Computed Tomography Predict Recovery of Regional Wall Motion in Reperfused Acute Myocardial Infarction
- Rupture of the Anterolateral Papillary Muscle Caused by a Single Diagonal Branch Obstruction
- Successful treatment of multiple hepatocellular carcinoma with tumor thrombi in the major portal branches by intraarterial 5-fluorouracil perfusion chemotherapy combined with subcutaneous interferon-alpha and hepatectomy
- Vitamin K2 has growth inhibition effect against hepatocellular carcinoma cell lines but does not enhance anti-tumor effect of combination treatment of interferon-α and fluorouracil in vitro
- Association Between Recurrence of Hepatocellular Carcinoma and α-Fetoprotein Messenger RNA Levels in Peripheral Blood
- Interferon alpha receptors are important for antiproliferative effect of interferon-α against human hepatocellular carcinoma cells
- Isolated metastasis to the gallbladder from hepatocellular carcinoma
- Masked Patulous Eustachian Tube : An Important Diagnostic Precaution Before Middle Ear Surgery
- Nonrecurrent Inferior Laryngeal Nerve Without Vascular Anomaly as a Genuine Entity
- Effect of Depth of Conical-Shaped Tympanic Membrane on Middle-Ear Sound Transmission
- Fault Diagnosis System for Machines Using Neural Networks
- Measurement of Dynamic Frequency Characteristics of Guinea Pig Middle Ear by a Laser Doppler Velocimeter
- Fault Diagnosis System of Machine Using Neural Networks and Its Application
- Analysis of Second-order Kernel Response Components of Multifocal Electroretinograms Elicited from Normal Subjects
- Effects of Various Decalcifying Protocols upon the Detection of DNA Strand Breakes by Terminal dUTP Nick End Labeling in Mouse Maxilla.
- Expression of Glutamate Transporter GLAST in the Developing Mouse Cochlea
- Confirmation of AlGaAs Crystal Domain Inversion Using Asymmetric Wet Etching and Optical Second-Harmonic Generation Methods
- Atomic Force Microscopic Imaging of the Lateral Wall of the Guinea Pig Outer Hair Cell(Micro- and Nano-biomechanics)
- Phylogenetic Position of Acoel Turbellarians Inferred from Partial 18S rDNA Sequences
- THE PHARMACOLOGICAL ACTION OF PUROTHIONIN (The 6th Meeting for the Study of Toxic Effect)
- Successful outcome after resection of liver metastasis arising from an extraadrenal retroperitoneal paraganglioma that appeared 9 years after surgical excision of the primary lesion
- Detection of Histidine Decarboxylase (HDC) in Paraffin Sections of Formalin Fixed Rat Stomach Using Avidin-biotin-peroxidase-complex Method
- DISTRIBUTION OF THE HISTAMINERGIC NEURON SYSTEM AND ITS PHYSIOLOGICAL FUNCTION IN RAT BRAIN
- Management of the Patients with Early Stage Oral Tongue Cancers
- Analysis of the Dynamic Behavior of the Inner Hair Cell Stereocilia by the Finite Element Method
- THE EFFECT OF STIFFNESS OF THE ROUND WINDOW MEMBRANE OF THE INNER EAR ON AUDITORY ACTIVITY(2E1 Joints & Sensory Organs)
- Active Force Generated by the Motility of the Outer Hair Cell(Proceedings of the Switzerland-Japan Workshop on New Directions in Cellular and Tissue Biomechanics)(Special Issue on Bioengineering)
- Thermal Properties of 1.3 μm AlGaInAs Multi Quantum Well Ridge Waveguide Lasers
- Thermal Resistance of 1.3μm AlGaInAs/InP MQW Ridge Lasers
- Low Threshold 1.3-μm AlGaInAs Buried-Heterostructure Lasers
- High Temperature Operation of AlGaInAs Ridge Waveguide Lasers with a p-AlInAs Electron Stopper Layer
- EVOLUTION OF Pax1 AND Pax9 ROLES MEDIATED BY EVOLUTION OF CIS REGULATORY ELEMENTS IN TELEOST(Developmental Biology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- EVOLUTION OF VERTEBRAE : AN APPROACH FOR FOCUSING ON CIONA INTESTINALIS PAX1/9 AND MEDAKA PAX1 TRANSCRIPTION REGULATORY MECHANISM(Genetics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- Endoscopic Sinus Surgery in Cases of Cholesterol Granuloma of the Maxillary Sinus
- Effects of Heat Treatment on Bonding Properties in InP-to-Si Direct Wafer Bonding
- In situ Turgor Stability in Grape Mesocarp Cells and Its Relation to Cell Dimensions and Microcapillary Tip Size and Geometry
- Surgical Treatment Is Recommended for Advanced Oral Squamous Cell Carcinoma
- Retropharyngeal Abscess Complicated with Torticollis : Case Report and Review of the Literature
- Role of Gbx2 and Otx2 in the formation of cochlear ganglion and endolymphatic duct
- Vanadium-containing Silsesquioxane-catalyzed Photo-assisted Oxidation of Hydrocarbons
- Allelic Loss Correlated with Tissue Specificity in Head and Neck Squamous Cell Carcinomas and the Clinical Features of Patients
- Two Cases of Plunging Ranula Managed by the Intraoral Approach
- Decreased Response of Plasma Catecholamine to Stress in Diabetic Rats
- A-11 Expression of keratinocyte growth factor (KGF) and its receptor (KGFR) in middle ear cholesteatoma (MEC), Possible involvement of KGF/KGFR in enhanced proliferation of the epithelial cells
- Comparative Immunohistochemical Localizations of Aquaporin-1 and Aquaporin-4 in the Cochleae of Three Different Species of Rodents
- 超低出生体重児における難治性低血圧に対する低容量バゾプレッシン投与について
- Molecular Phylogeny Inferred from Sequences of Small Subunit Ribosomal DNA, Supports the Monophyly of the Metazoa
- Dynamic Characteristics of the Force Generated by the Outer Hair Cell Motility in the Organ of Corti : Theoretical Consideration(Bioengineering)
- In situ Turgor Stability in Grape Mesocarp Cells and Its Relation to Cell Dimensions and Microcapillary Tip Size and Geometry
- Immunocytochemical localization of s-GOT and m-GOT in rat retina and brain
- Distinct Features of Second Primary Malignancies in Head and Neck Cancer Patients in Japan
- A New Method to Identify the Internal Auditory Canal during the Middle Cranial Fossa Approach : A Preliminary Report
- Organic Field-Effect Transistor Materials Based on Cycloalkane-Capped Tetrathiapentalene Derivatives
- Inkjet Printing of Graphene Nanoribbons for Organic Field-Effect Transistors
- Creutzfeldt-Jakob Disease with Paralysis of the Unilateral Vocal Cord and Soft Palate
- Clinical application of array-based comparative genomic hybridization by two-stage screening for 536 patients with mental retardation and multiple congenital anomalies
- Correct Diagnosis of Warthin Tumor in the Parotid Gland with Dynamic MRI
- S01 Auditory Mechanics
- Occurrence of Late Acquired Peri-Stent Contrast Staining
- Functional Expression of Prestin, the Outer Hair Cell Motor Protein, Using the Baculovirus/Insect Cell System
- Acquired Idiopathic Laryngomalacia Treated by Laser Supraglottic Laryngoplasty
- Isolated Juvenile Xanthogranuloma in the Larynx of a Three-Year-Old Child