• 국제초고층학회논문집
• /
• 제10권3호
• /
• pp.165-171
• /
• 2021

Core-outrigger-mega frame system is used in Suzhou IFS with 95-story, 450 m-tall, which is beyond Chinese code limit. Besides simple introduction on design principle, structure system and analysis, key techniques including performance based design criteria, frame shear ratio, capacity check of mega column, human comfort criteria under wind induced vibration and TSD design were presented in details for reference of similar super tall building design.

• Journal of Dental Anesthesia and Pain Medicine
• /
• 제19권6호
• /
• pp.369-378
• /
• 2019

Background: Behavior guidance is a technique used to subdue inappropriate behavior by establishing communication that meets the needs of a child. This study aimed to measure the effectiveness of a mobile app (Little Lovely Dentist) compared to the tell-show-do (TSD) technique in managing anxious children during their first dental visit. Methods: Fifty children (30 boys and 20 girls) without any past dental experience, aged from 7 to 11 years, were randomly allocated into either the dental app group or the TSD group. The pre- and post-operative anxiety of children who underwent prophylactic cleaning was assessed both physiologically and subjectively using a heart rate measurement and the RMS pictorial scale, respectively. Results: The intragroup comparison of heart rate and RMS scores for children allocated to the dental app group was statistically significant (P value ≤ 0.001). However, a significant reduction only occurred in the RMS scores, but not the heart rate measurements, in the TSD group. Conversely, there was an increase in heart rates in the TSD group. Conclusion: Educating the child prior to a dental procedure using a smartphone application such as Little Lovely Dentist can significantly alleviate the anticipatory anxiety and engage children in dental treatment during their first visit.

• Journal of Nutrition and Health
• /
• 제31권2호
• /
• pp.126-134
• /
• 1998

Our previous study demonstrated that dietary taurine or glycine supplementation significantly lowered plasma and hepatic cholesterol and triglyceride concentrations in rats fed a cholesterol-free diet. In the present study, the effect of long term dietary taurine or glycine supplementation, for the purpose of preventing and/or treating of hyperlipidemia and other known biological functions, on plasma and hepatic free amino acid concentrations and profiles were evaluated in rats. Three groups of male rats(110-130g) were fed a control diet(CD), taurine-supplemented diets(TSD ; CD+ 1.5% taurine) or glycine-supplemented diet(GSD ; CD+1.5% glycine) for 5 weeks. Plasma and hepatic free amino acid concentrations were determined by an automated amino acid analyzer based on ion-exchange chormatography. The feeding of TSD for 5 weeks yielded a 444% higher plasma taurine concentration , and the feeding GSD for the same period resulted in a 143% higher plasma glycine level in rats compared to those fed DB. Hepatic taurine concentration was significantly higher in rats fed TSD(145% increase) compared to the control rats. However, hepatic glycine concentration was not influenced by dietary glycine supplementation , which implies that the massive dose of glycine entering the body was more rapidly metabolized or excreted than taurein. Dietary taurine or glycine supplementation resulted in similar changes in plasma free amino acid concentrations, except in levels of taurine and glycine. Plasma levels of histidine, lysine, phenylalanine , alanine, proline, hydroxypoline, $\alpha$-aminogutyric acid, cystathionine and ethanolamine were significantly higher in rats fed TSD or GSD than those fed GD. Glycine supplementation did not change hepatic free amino acid concentrations as compared to CD. Concentrations of most hepatic free amino acids were not influenced by dietary taurine supplementation with the exception of significantly higher levels of asparate and tyrosine(56-63% increase) and lower levels of histidine and glutamate(33-34% decrease) compared to the control rats. These results suggest long-term dietary taurine or glycine supplementation resulted in increases in most plasma free amino acid levels, but did not cause a characteristic change in plasma aminogram pattern compared to rats fed CD.

• 한국항공우주학회지
• /
• 제35권7호
• /
• pp.581-585
• /
• 2007

TSD 이론으로 구해진 sonic arc 익형의 형상을 새로운 익형 형상으로 수정하고 천음속 유동에서의 공력 성능을 조사하였다. Euler solver를 이용하여 수정 sonic arc 익형에 대한 수치계산을 수행하고 그 결과를 NACA0012 익형의 공력 성능과 초임계 익형의 공력 성능 그리고 NACA64A210 익형의 공력성능과 비교하였다. 천음속 유동의 같은 자유 유동 마하수에서 수정 sonic arc 익형의 압력 항력은 NACA0012 익형의 압력 항력보다 더 작게 나타났으며 수정 sonic arc 익형의 양항비는 NACA0012 익형의 양항비보다 훨씬 크게 나타났다. 천음속 유동에서의 항력 발산 마하수 비교에서는 수정 sonic arc 익형의 항력 발산 마하수가 NACA64A210 익형의 항력 발산 마하수보다는 크게 나타났지만 초임계 익형의 항력 발산 마하수 보다는 작게 나타났다.

• 한국항행학회논문지
• /
• 제24권6호
• /
• pp.451-457
• /
• 2020

대한민국 해군에서 운영 중인 P-3C 해상초계기는 전술표적의 탐색 및 모니터링을 위한 다양한 센서들을 탑재하고 있다. 항공기내 클러스터링 네트워크로 구성된 전술컴퓨터 (tactical station)들은 센서들을 통해 주변 환경을 꾸준히 관찰하고 탐지된 물체들에 대하여 일부를 표적(target)들로 등록하고 관리한다. 이 표적들은 탑승한 임무 조작사들의 전술정보화면 (TSD; tactical situation display)을 통해 각 임무의 특성에 맞게 도시된다. 한반도의 지리적 특성을 고려하면 인접한 주변국들로 인한 해상/상공의 수많은 선박과 비행기들이 감지되고 있다. 이들은 초계기의 임무수행동안 표적들로 관리되어 꾸준히 모니터링된다. 센서의 증가와 성능 향상에 따른 더 많은 정보가 수집되고 이에 따른 TSD의 화면 갱신을 위한 처리방식을 개선할 필요가 있었으며, 본 논문에서는 이를 위해 전술정보 백업 및 재활용기법을 제안하고 이를 구현하고 분석하여 성능을 입증한다.

• Journal of Nutrition and Health
• /
• 제30권10호
• /
• pp.1132-1139
• /
• 1997

The effect of dietary taurine supplementation on plasma and hepatic lipid concentrations were evaluated in rats fed one of the following two cholesterol-free diets for 5 weeks ; a control diet(CD : cholesterol -free and taurine -fee diet) and a taurine supplemented diet(TSD : CD + 1.5% taurine). There were no significant differences in liver weight and cummulative body weight gains between the groups at the end of the experimental period .However, the liver weight to body weight ratio was significantly decreased (p<0.05) by dietary taurine supplementation. Plasma concentrations of total cholesterol , LDL-cholesterol and triglyceride were significantly reduced(37%, 26% and 53% respectively) in rats fed TSD compared to those fed CD. There were no significant differences in plasma free fatty acid and total phospolipid levels between the two groups. Feeding TSD to the rats significantly reduced their hepatic triglyceride concentration(43% decrease , p<0.001) but elevated their hepatic free fatty acid level(77% increase, p<0.001) as compared to the control rats. Liver cholesterol concentration was not significantly influenced by the dietary taurine supplementation. Dietary taurine supplementation significantly reduced the percentage of phosphatidylcholine and phosp-atidylethanolamine, but elevated the prospholipids in the liver homogenates as compared to the values for the CD rats. These results suggest the possible roles of taurine as a hypochlesterolmic and hypotriglyceride agent in rats fed a cholesterol-free diets.

• 한국복합재료학회:학술대회논문집
• /
• 한국복합재료학회 2000년도 춘계학술발표대회 논문집
• /
• pp.126-130
• /
• 2000

In this study, flutter characteristics of a composite wing have been studied for the variation of laminate angles in the subsonic, transonic and supersonic flow regime. The laminate angles are selected by the aspect of engineering practice such as 0, $\pm$45 and 90 degrees. To calculate the unsteady aerodynamics for flutter analysis, the Doublet Lattice Method(DLM) in subsonic flow and the Doublet Point Method(DPM) in supersonic flow are applied in the frequency domain. In transonic flow, transonic small disturbance(TSD) code is used to calculate the nonlinear unsteady aerodynamics in the time domain. Aeroelastic governing equation has been solved by v-g method in the frequency domain and also by Coupled Time-Integration Method(CTIM) in the time domain. from the results of present study, characteristics of free vibration responses and aeroelastic instabilities of a composite wing are presented for the set of various lamination angles in the all flow range.

• Radiation Oncology Journal
• /
• 제6권1호
• /
• pp.109-116
• /
• 1988

The Alcyon Co-60 gamma rays was studied for electron contamination. The surface dose, attributable almost entirely to contamination electrons, has a linear dependence on field width for square fields and an inverse square dependence on distance from the bottom of the fixed head assembly Build-up and surface dose measurements were taken with and without an acrylic blocking tray in place. Further measurements were made with a copper filter designed to reduce secondary electrons emitted by photon interactions with the acrylic tray. The results are discussed in relation to skin sparing effect for radiation therapy Patients. And to achieve the maximum skin sparing effect, the selection of the optimum SSD and TSD is needed.

• 한국세라믹학회지
• /
• 제46권2호
• /
• pp.155-160
• /
• 2009

The reliability could be one of the essential properties for multilayer ceramic capacitor (MLCC) using in various electronic devices and the concentration and mobility of oxygen vacancy would play important role in the reliability. To investigate the migration behavior of oxygen vacancies, thermally stimulated depolarization current (TSDC) is adopted. In dielectric material of X5R MLCC, the TSD-Current peak observed around 150$^{\circ}C$ and 200$^{\circ}C$ which represented the migration of oxygen vacancy. Substituting Yttrium for Dysprosium in X5R MLCC showed higher migration activation energy and lower TSD current density.

• 대한한방부인과학회지
• /
• 제28권4호
• /
• pp.106-117
• /
• 2015

Objectives : This study is to report the clinical effect of oriental medicine on a patient suffering from endometriosis with chronic pelvic pain and other accompanied various symptoms. Methods : The 32 years old patient had suffered from endometriosis symptoms including pelvic pain, menstrual cramping, disuresia, and other pains over 8 years. The patient received herbal medication, acupuncture, abdominal moxibustion during 5 months of outpatient treatment. The clinical effects were evaluated through TSD (Total Symptom Distress) and EHP-5 (Short-From Endometriosis Health Profile Questionnaire). Results : The various clinical symptoms were improved during the treatment. The TSD and EHP-5 score also noticeably reduced. Conclusions : This case study showed that oriental medicine, acupuncture and moxibustion treatment appeared to effectively reduce various symptom of endometriosis.