• Title/Summary/Keyword: T2 Measurement

Search Result 2,018, Processing Time 0.028 seconds

Development of a Computer Measurement and Control System for Rough Rice Drying by Natural Air (미곡(米穀)의 상온통풍건조(常温通風乾燥)를 위한 컴퓨터 계측(計測) 및 제어(制御)시스템 개발)

  • Kim, T.K.;Chang, D.I.;Kim, M.S.
    • Journal of Biosystems Engineering
    • /
    • v.13 no.4
    • /
    • pp.46-55
    • /
    • 1988
  • The objective of this study was to develop a computer measurement and control system which enable it possible to manage the natural air rough rice drying and storage properly and safely. The following contents of work were taken in this study in order to fulfill the above goal: 1) Design and construction of measurement system which can measure the rough rice drying conditions automatically and transfer them to computer system for data processing. 2) Development of a management software which can determine the need of fan operation by the analysis of drying and/or storage conditions. 3) Design and construction of a control system which deliver the computer decision of fan operation and make it on and off. 4) Technical and economical analysis of the computer measurement and control system development by the comparison experiments of the computer management and of the manual.

  • PDF

A Study on the Influence of Wearing-Girdle on the Various Physiological Function (Girdle 착용이 신체 제 기능에 미치는 영향에 관한 연구)

  • 박영득
    • Journal of the Korean Home Economics Association
    • /
    • v.28 no.1
    • /
    • pp.1-7
    • /
    • 1990
  • This study was carried out to investigate the influence of the various physiological function caused by girdle wearing. The four experimental methods used in this study are as follows. For example, the Reentgen photographing, body measurement by Sliding Gauge, mensurement of the electrocardiogram, measurement of the pulse and the blood pressure. The results of the investigation were as follows; 1. In the change of the various organs by Roentgen photographing, the diaphragm rised a little than normal position. The heart and stomach inclined to right side and the shape of stomach and duodenum are longer than the length of normal shape. Especially the phlorus of stomach was pressured strongly. 2. In the experimental change by the Sliding gauge and body measurement, the waist, hip and theigh girth of wearing-girdle reduced than at the no-girdle. The protruson of abdomen and hip section of wearing-girdle and the phenomenon of Hip-Up showed. 3. The difference by measurement of the electrocardiogram wasn't showed. The pulse of the wearing-girdle was increased slightly than the no-girdle. 4. The blood pressure of the wearing-girdle decreased slightly than the no-girdle.

  • PDF

A Study on the Thickness Measurement of Thin Film by Ultrasonic Wave (초음파(超音波)를 이용(利用)한 박막(薄膜)두께 측정(測定)에 관(關)한 연구(硏究))

  • Han, Eung-Kyo;Lee, Jae-Joon;Kim, Jae-Yeol
    • Journal of the Korean Society for Nondestructive Testing
    • /
    • v.7 no.2
    • /
    • pp.27-34
    • /
    • 1988
  • Recently, it is gradually raised necessity that thickness of thin film is measured accurately and managed in industrial circles and medical world. In this study, regarding to the thickness of film which is in opaque object and is beyond distance resolution capacity, thickness measurement was done by MEM-cepstrum analysis of received ultrasonic wave. In measurement results, film thickness which is beyond distance resolution capacity was measured accurately. And within thickness range that don't exist interference, thickness measurement by MEM-ceptrum analysis was impossible.

  • PDF

A Study on Turbidity Calibration of Borehole Roughness Measurement System (BKS-LRPS) (굴착공 벽면거칠기 측정시스템(BKS-LRPS)의 혼탁도 보정에 관한 연구)

  • Park, Bong-Geun;Choi, Yong-Kyu;Kim, Myung-Hak;Kwon, Oh-Kyun;Nam, Moon-S.
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 2009.03a
    • /
    • pp.1-10
    • /
    • 2009
  • Based on recent studies, the side resistance of rock socketed drilled shafts was affected by unconfined compressive strength of rock, socket roughness, rock types and joints, and initial normal stress. Especially, the socket roughness was affected by rock types and joints, drilling methods, and diameters of pile. In this study, a new roughness measurement system (BKS-LRPS, Backyoung-KyungSung Laser Roughness Profiling System) usable in water was developed. Based on the laboratory model tests, an EMD (Effective Measurement Distances) according to various turbidity was proposed as EMD=$1149.2{\times}T^{-0.64}_b$.

  • PDF

A Study on the Standardization In the Mandibular First Premolar of the Middle Aged Korean (하악 제1소구치의 표준화 연구)

  • Lee H.J.;Chun K.J.;Chung D.T.;Cho C.H.
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2005.10a
    • /
    • pp.252-255
    • /
    • 2005
  • Mandibular first premolars obtained from the middle-aged men about the ages of 50 were scanned using a Micro-CT. A Jig was made for a Micro-CT measurement to get reliable data from irregular teeth shape. Data were measured from the scanned 2-D images by way of measurement software. the methodology fer measurement of the mandibular first premolar was presented and according to this, the standardized mandibular first premolars of middle aged Korean males and females were made by using a rapid prototyping system.

  • PDF

Analysis and measurement of low frequency magnetic field according to internal position of electric railway train (전기철도차량 객실 내부 위치에 따른 극저주파 자계 측정 및 분석)

  • Jang, Dong-Uk;Han, Moon-Seob
    • Proceedings of the KSR Conference
    • /
    • 2008.06a
    • /
    • pp.489-494
    • /
    • 2008
  • The measurement of magnetic field is performed about DC and AC magnetic field in electric railway line. The test point is cap, on the converter/inverter box, on the traction motor and on the SIV, the height of measurement is bottom and 60 cm height. In case of AC magnetic field, the selected specific frequency is measured on the converter/inverter box. The AC magnetic field is checked and analysis through BNC output, DAQ cad and notebook PC.

  • PDF

Influence of Gas Pain, Post-operative Resilience, and Body Temperature Discomfort in Laparoscopic Myomectomy Patients after Thermotherapy (복강경하 자궁근종절제술 후 적용한 온열요법이 가스 통증, 수술 후 회복력 및 체온불편감에 미치는 효과)

  • Lee, JeongAe;Jeon, MyoungHwa;Park, EunJu;Lee, JinAh;Ahn, GonMyoung;Lee, SeungShin;Kim, JiIn
    • Women's Health Nursing
    • /
    • v.25 no.1
    • /
    • pp.4-18
    • /
    • 2019
  • Purpose: The purpose of this study was to investigate the effects of thermotherapy on gas pain, post-operative resilience, and body temperature discomfort among patients who received laparoscopic myomectomies. Methods: The experimental group consisted of 62 patients with thermotherapy and the control group consisted of 60 patients. Thermotherapy was applied individually to the experimental group four hours after surgery. The collected data was analyzed using descriptive statistics, t-tests, ${\chi}^2$-tests, and repeated measures of analysis of variance, using IBM SPSS Statistics version 18. Results: The results showed no significant interaction effect between the group and time of measurement in gas-related pain in the experimental group. For gas-related pain, there was significant difference in right shoulder pain at 24 hours (t=-4.222, p=.000), 48 hours (t=-3.688, p=.000), 72 hours (t=-2.250, p=.028), and left at 24 hours (t=-3.727, p=.000), 48 hours (t=-4.150, p=.000), and 72 hours (t=-2.482, p=.016) and both shoulders at 24 hours (t=-2.722, p=.009) and 48 hours (t=-2.525, p=.014). There was no significant difference in epigastric pain, excluding both epigastric pain at 48 hours (t=2.908, p=.005), 72 hours (t=3.010, p=.004), but there was a significant difference in objective body temperature discomfort (t=2.895, p=.008). Conclusion: Thermotherapy relieved shoulder gas-related pain and objective body temperature discomfort. It needs to be developed and applied to improve post-operative discomfort in patients with laparoscopic hysterectomies.

Comparing fuzzy type-1 and -2 in semi-active control with TMD considering uncertainties

  • Ramezani, Meysam;Bathaei, Akbar;Zahrai, Seyed Mehdi
    • Smart Structures and Systems
    • /
    • v.23 no.2
    • /
    • pp.155-171
    • /
    • 2019
  • In this study, Semi-active Tuned Mass Dampers (STMDs) are employed in order to cover the prevailing uncertainties and promote the efficiency of the Tuned Mass Dampers (TMDs) to mitigate undesirable structural vibrations. The damping ratio is determined using type-1 and type-2 Fuzzy Logic Controllers (T1 and T2 FLC) based on the response of the structure. In order to increase the efficiency of the FLC, the output membership functions are optimized using genetic algorithm. The results show that the proposed FLC can reduce the sensitivity of STMD to excitation records. The obtained results indicate the best operation for T1 FLC among the other control systems when the uncertainties are neglected. According to the irrefutable uncertainties, three supplies for these uncertainties such as time delay, sensors measurement noises and the differences between real and software model, are investigated. Considering these uncertainties, the efficiencies of T1 FLC, ground-hook velocity-based, displacement-based and TMD reduce significantly. The reduction rates for these algorithms are 12.66%, 26.43%, 20.98% and 21.77%, respectively. However, due to nonlinear behavior and considering a range of uncertainties in membership functions, T2 FLC with 7.2% reduction has robust performance against uncertainties compared to other controlling systems. Therefore, it can be used in actual applications more confidently.

Accuracy Comparison of Blood Pressure among the Direct Measurement Method and Two Automatic Indirect Measurement Methods in the Patients with Various Blood Pressure (다양한 혈압상태에서 직접혈압을 기준으로 HP 자동혈압기와 국산자동혈압기의 정확도 비교)

  • Song Hyo-Sook;Jun Tae-Gook;Choi Eun-Jung;Kim Mi-Jung
    • Journal of Korean Academy of Fundamentals of Nursing
    • /
    • v.8 no.3
    • /
    • pp.366-378
    • /
    • 2001
  • Objective: The purpose of this study was to identify differences in measurement methods for blood pressure (Direct measurement, HP automatic indirect measurement, and SE 7000 Korean made indirect measurement), and to evaluate the clinical trial of the Korean made automatic indirect blood pressure measurement. Material & Methods: From June, 1999 to February, 2000, fifty five consecutive patients were randomized into hypertension group (n=20), normotension group (n=20), and hypotension group (n= 15). Measuring blood pressure by indirect methods (HP NIBP M 1008B and SE 7000 NIBP Korean made) was done simultaneously in the same arm with arterial line for direct blood pressure measurement (HP M1006A). The procedures were repeated ten times at intervals of 2 minutes. Statistical analysis was Performed using SPSS (version 8.0 for windows) software package. Values were expressed as means and standard deviation and means were compared using t-test. Statistical significance was considered present with a p value less than 0.05. Results: In the hypertension group and noromotension group, the disparity between HP direct measurement and indirect SE 7000 NIBP did not show any differences compared to the disparity between HP direct measurement and indirect HP NIBP. In the hypotension group, the disparity in the diastolic pressure between HP direct measurement and indirect SE 7000 NIBP was significantly different compared to the disparity between HP direct measurement and indirect HP NIBP (p<0.001), however, disparities in systolic pressure did not showed any differences. Conclusion: Direct blood pressure measurement (HP M1006A) can be replaced with indirect blood pressure measurements (HP NIBP M 1008B & SE 7000 NIBP) in normotension and hypertension patients. Korean made indirect measurement was found to be more accurate compared to HP indirect measurement in hypotension Patients, but more study is needed.

  • PDF

Multi-point displacement monitoring of bridges using a vision-based approach

  • Ye, X.W.;Yi, Ting-Hua;Dong, C.Z.;Liu, T.;Bai, H.
    • Wind and Structures
    • /
    • v.20 no.2
    • /
    • pp.315-326
    • /
    • 2015
  • To overcome the drawbacks of the traditional contact-type sensor for structural displacement measurement, the vision-based technology with the aid of the digital image processing algorithm has received increasing concerns from the community of structural health monitoring (SHM). The advanced vision-based system has been widely used to measure the structural displacement of civil engineering structures due to its overwhelming merits of non-contact, long-distance, and high-resolution. However, seldom currently-available vision-based systems are capable of realizing the synchronous structural displacement measurement for multiple points on the investigated structure. In this paper, the method for vision-based multi-point structural displacement measurement is presented. A series of moving loading experiments on a scale arch bridge model are carried out to validate the accuracy and reliability of the vision-based system for multi-point structural displacement measurement. The structural displacements of five points on the bridge deck are measured by the vision-based system and compared with those obtained by the linear variable differential transformer (LVDT). The comparative study demonstrates that the vision-based system is deemed to be an effective and reliable means for multi-point structural displacement measurement.