Impact Response Analysis of Patella-Patellar Tendon-Tibial Tuberosity Complex(Impact 2)

2001 ◽  
Vol 1.01.203 (0) ◽  
pp. 493-498
Author(s):  
Yuji TANABE ◽  
Makoto SAKAMOTO ◽  
Hiroshi SHIBATA ◽  
Yoshio KOGA
Keyword(s):  
Patellar Tendon ◽  
Tibial Tuberosity ◽  
Impact Response ◽  
Response Analysis

Impact Response Analysis of a Coaxial Double-Pipe Structure by Using Spectral Element Method

2011 ◽  
Author(s):  
Akemi Nishida ◽  
Kazuhiko Iigaki
Keyword(s):  
High Frequency ◽  
Spectral Element Method ◽  
Spectral Element ◽  
Impact Response ◽  
Response Analysis ◽  
Damping Properties ◽  
High Frequency Region ◽  
Parametric Studies ◽  
Double Pipe ◽  
Element Method

A coaxial double-pipe structure is to be used in the primary and auxiliary coolant system of a high-temperature gas-cooled reactor. In order to study the vibration characteristics of the coaxial double-pipe structure, hammering experiments were performed using specimens of the structure. Because the structural responses obtained in the experiments contained high-frequency components, impact response analysis was performed by using the spectral element method, which has high accuracy in the high-frequency region. A comparison between analysis results and experiment results showed good agreement between them. We also performed parametric studies on the damping properties of the specimens. The damping properties determined from the experiment results indicated that the inner and outer pipes had different damping properties.

Impact response analysis including biological reactions when a moving levitating block collides with palms of hands

2018 ◽  
Vol 2018.31 (0) ◽  
pp. 116
Author(s):  
Takao YAMAGUCHI ◽  
Yuji SHIMOKOBE ◽  
Yusaku FUJI ◽  
Shinichi MARUYAMA ◽  
Taro KOIZUMI
Keyword(s):  
Impact Response ◽  
Response Analysis

scholarly journals The Impact of Covid-19 on the Macro Indicators: A Comparative Analysis for Oil, Gold, Exchange Rates and Wheat

2021 ◽  
Vol 9 (10) ◽  
pp. 48-63
Author(s):  
DILEK TEKER ◽  
E. Asena Deniz
Keyword(s):  
Human Life ◽  
Economic Life ◽  
Impact Response ◽  
Response Analysis ◽  
Economic Activities ◽  
Economic Sectors ◽  
Health Crisis ◽  
Short Time ◽  
The Impact ◽  
Adf Test

COVID-19, which occurred in Wuhan, China at the end of December 2019 and have affected the whole world, appears to have drastic effects on human health and economic stability. Economic activities related to global trade decreased with the spread of the epidemic and caused crisis both economically and financially. This virus, which is also a health crisis, has affected human life greatly due to uncertainty in the protection and treatment processes. Increasing numbers of cases and deaths negatively affect the economic progress globally and show that countries with intense epidemic are vulnerable. Not knowing how long the pandemic will last and how long economic activities will be restricted requires an economic precaution. If the pandemic is brought under control quickly, the return to normal economic life will happen quickly and thus all economic sectors, especially service sectors, will recover in a short time. If the process of controlling the pandemic is long, the destruction on economic growth and employment will be at higher levels. With the vaccine found, it is predicted that the normalization process will accelerate and the economy may recover. Increased studies examining the impact of the COVID-19 pandemic on financial markets and commodity markets will make it easier for both economists and financial actors in the future.  In this study, the relationship between the daily number of cases of COVID-19 and brent oil, gold, EUR / USD and wheat prices were examined. After the natural logarithm of our variables was applied, it was determined whether they were static or not. ARDL test, Impact-Response Analysis and Variance Decomposition were performed according to the determined lag lengths. According to the results, ARDL test was performed because our data was not stationary according to the ADF test and cointegration was not found among the data. As a result of impact response analysis, shocks lose their effect in a short time.

scholarly journals Bifocal Disruption of the Patellar Tendon with Avulsion of the Tibial Tuberosity: A Case Report

2020 ◽  
Vol 14 (1) ◽  
pp. 120-124
Author(s):  
Takuya Sekiguchi ◽  
Yoshihiro Hagiwara ◽  
Masahito Honda ◽  
Eiji Itoi
Keyword(s):  
Case Report ◽  
Patellar Tendon ◽  
Fibrous Tissue ◽  
Knee Extensor ◽  
Superficial Layer ◽  
Left Knee ◽  
Tibial Tuberosity ◽  
First Case ◽  
Deep Layers ◽  
The Right

Introduction: Bifocal disruption of the knee extensor system is rare. Coincident bifocal proximal and distal disruptions of the patellar tendon are extremely rare in adults. Case Report: A 38-year-old man presented to our clinic with severe right knee pain after falling down the stairs and abruptly bending the right knee. Plain radiographs of this knee showed tibial avulsion and a high riding patella, suggesting underlying Osgood-Schlatter disease, which was also present to a milder degree in the left knee. Magnetic resonance imaging confirmed an avulsion of the tibial tuberosity and showed concomitant avulsion of the patellar tendon without bone marrow edema. Computed tomography showed that the fragment of the tibial tuberosity had a dull-edged margin, and cortical bones were partially exposed. During surgery, the patellar tendon was divided into superficial and deep layers. The superficial layer was peeled from an attachment at the patella, while the deep layer was from the tibia and contained the fragment of the tibial tuberosity. The detached side of the fragment and tibia were coated with dense, fibrous tissue. Surgical repair was performed, with excellent outcomes. Radiographic and intraoperative findings suggested Osgood-Schlatter disease, which might cause avulsion of the tibial tuberosity. Conclusion: This is the first case of the bifocal proximal and distal rupture of the patellar tendon with the avulsion of the tibial tuberosity. Bifocal disruption of the patellar tendon should be considered in patients presenting with avulsion of the tibial tuberosity and suspected Osgood-Schlatter disease.

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