• Title/Summary/Keyword: 주사기

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Scanner Calibration Method for Higher Accuracy at Acquisition of Digital Imagery Data in GSIS (지형공간정보체계에서 수치영상자료 취득의 정확도 향상을 위한 주사기의 검정 방법)

  • Choi, Chul-Sun
    • Journal of Korean Society for Geospatial Information Science
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    • v.1 no.2 s.2
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    • pp.153-158
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    • 1993
  • It is important to establish the transformational relation between scanned image coordinates and digital image coordinates because the coordinate system of digital image is transformed from scanned image coordinate system through scanning work. And, some researches are required in scanning works to correct the deformation that is due to the motion of scanner. In this study, some procedures are applied to determine the optimal calibration model equation which can calibrate the scanner. As a result the optimal calibration model equation for the object scanner is determined The procedure of this study can applied to the calibration of other types of scanner, because the procedures are done with the analysis of geometrical properties rather than the analysis of physical properties.

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Comparison of Radiopharmaceutical Dosing Rate Measurements Using Plastic Syringes and Norm-ject Syringes (플라스틱 주사기와 놈젝 주사기를 이용한 방사성 의약품의 투여율 측정 비교)

  • Son, Sang-Joon;Park, Jeong-Kyu
    • The Journal of the Korea Contents Association
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    • v.20 no.10
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    • pp.395-400
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    • 2020
  • Between October 2019 and January 2020, 120EA of a syringe that was equipped with a 3-way injection material and administered 99mTc labeled compound among inpatients for SPECT examination at the Department of Nuclear Medicine at Daegu P Hospital. When using a plastic syringe, the average dosing rate according to the number of dilutions was 99mTc-ECD the highest at 90.87±11.08, and 99mTc-DMSA the lowest at 75.28±7.43. The average dose rate according to the number of dilutions was the highest at 93.58±7.96, and the lowest at 99mTc-DMSA at 91.60±6.07. The independent sample t-test showed whether the difference between the 99mTc-DMSA plastic syringe and the normjek syringe was statistically significant(p<0.01). The 99mTc-DMSA used for radiopharmaceuticals is a radiopharmaceutical that is mainly used for pediatric patients, and it is considered that it is necessary to use a normjek syringe rather than a general plastic syringe because the precise dosage is important.

The Estimation of DTM Accuracy of Aerial Digital Image with Non-photogrammetric Scanner (비 측량용 주사기에 의한 항공수치영상의 DTM 정확도 평가)

  • 박운용;김희규;이인수
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.18 no.1
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    • pp.59-66
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    • 2000
  • This study describes the precise DTM by image processing method through scanning the positive film of aerial photo using scanner instead of plotter. First, scanned the positive film of aerial photo by drum scanner and flatbed scanner in different resolution, and then compared the height from image processing method using auto correlation method with height which is taken using $50^m{\times}50^m$ grid in 1 :5,000 geographical map. It shows that heights from aerial photo image of high resolution obtained from scanner are comparable to the heights from 1:5,000 geographical map.

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A Design of New Real Time Monitoring Embedded Controller using Boundary Scan Architecture (경계 주사 구조를 이용한 새로운 실시간 모니터링 실장 제어기 설계)

  • 박세현
    • Journal of Korea Multimedia Society
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    • v.4 no.6
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    • pp.570-578
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    • 2001
  • Boundary scan architecture test methodology was introduced to facilitate the testing of complex printed circuit board. The boundary scan architecture has a tremendous potential for real time monitoring of the operational status of a system without interference of normal system operation. In this paper, a new type of embedded controller for real time monitoring of the operational status of a system is proposed and designed by using boundary scan architecture. The proposed real time monitoring embedded controller consists of test access port controller and an embedded controller proposed real time monitoring embedded controller using boundary scan architecture can save the hard-wire resource and can easily interface with boundary scan architecture chip. Experimental results show that the real time monitoring using proposed embedded controller is more effective then the real time monitoring using host computer.

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KHI-6의 일반적 특징과 해독 효과 고찰

  • Lee, Mi-Suk
    • Defense and Technology
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    • no.2 s.264
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    • pp.43-53
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    • 2001
  • 우리 군도 2000년 6월 전략화 심의를 통과한 후, 2006년부터 도입될 신형 해독제 주사기인 KHI-6에 대한 개발을 업체가 추진하고 있다. 이 HI-6 과련 해독제는 기존 PAM 관련 KMARK-1 보다 Soman 신경 작용제에 해독 능력이 증강되고, LD50 수치가 높고(자체 독성이 낮음을 의미), 이원화 자동 주사기로써 간편성을 더한다고 한다. 이에 우리도 신형 해독제 주사기에 대한 기본 구조와 해독 효과, 장점과 단점, 도입에 관련된 사전 지식, 외국군의 운용 실태 등에 대해 알아보았다

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LHRHa 주사에 의한 양식산 은어(Plecoglossus altivelis) 배란의 촉진 및 동시화

  • 손송정
    • Proceedings of the Korean Society of Developmental Biology Conference
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    • 1998.07a
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    • pp.30-31
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    • 1998
  • 1. LHRHa를 정상배란 시기의 30일전부터 10일 간격으로 3회 주사한 것과 20일 전부터 2회 주사한 모든 실험구에서 난소의 성숙촉진과 배란의 동시화 효과가 나타났다. 2. 은어 배란의 도시화가 유도하고 발안란의 생조율을 높이기 위한 LHRHa 주사방법은 어체중 100g 당 10 $\mu$ g을 정상배란 30일전부터 3회 혹은 20일전부터 2회 주사하는 것이 바람직하였다. 3. LHRHa 주사에 의해 배란된 알의 발안기까지의 생존율은 LHRHa 주사 농도가 높을수록 낮아지는 경향을 보였다. 4. 혈장 estradiol과 testosterone의 농도는 LHR 주사후 배란기까지 증가하는 경향을 보였다.

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Development of the Syringe Experiment Device for the Education of Sound Resonance (소리 공명 교육을 위한 주사기 실험기구 개발)

  • Yoon, Ki-Sang;Han, Jae-Ho;Suh, Sang-Joon;Suh, Jae-Gap
    • Journal of Science Education
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    • v.37 no.1
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    • pp.233-243
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    • 2013
  • The purpose of this study is to develop the syringe experiment device which is able to analyze the relationship between the length of the air pillar and resonance frequencies quantitatively for the education of sound resonance. We made an air pillar resonance device with a 'Head', which is used by the disposable syringe and the plastic sphere for constructing molecular models. We also assembled PC experiment equipment which is used by commercial software. As a result, it appears this equipment can be used instead of the current device used by experts. It was proved that this syringe device is not the 'pipe' but the 'Helmholtz resonator'. It appears that data through resonance experiments can prove the sound resonance phenomenon. In conclusion, this syringe resonator is the experiment device that can be used in the gifted education for middle-high school students and acoustic experiments for university students.

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Frequency of Lesions on Injection Site by Vaccination Using Needle-Free Injection (무침주사기를 이용한 구제역 백신 접종과 이상육 발생)

  • Lee, S.H.;Choe, J.;Koo, H.J.;Chae, C.J.;Park, J.K.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.23 no.1
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    • pp.27-30
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    • 2021
  • Vaccination for swine food and mouth disease (FMD) has been using needle injection. Needle injection can cause lesions of injection site on muscle and lymph node, leading to consumer's complain and Korea Pork's image deterioration. Needle-free injections have been developing to solve this issues. The current study performed to evaluate the frequency of muscle and lymph node lesions after vaccination using needle-free injection. Needle-free injection significantly decreased the lesions on the injection site compared with the needle injection(36 vs. 16%, p < 0.05). Based on the result, needle-free injection can enhance the quality of pork and decrease consumer's complains. Further study should perform to validate potential of needle-free injection by investigating antibody formation rate, work efficiency, and economic cost.

Experiment to Calculate the Dosage of Radiopharmaceutical Products during the Bone Scan Tests (Bone Scan 검사 시 실제 환자에게 투여되는 용량 계산을 위한 실험)

  • Lee, Wang-Hui;Ahn, Sung-Min
    • The Journal of the Korea Contents Association
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    • v.15 no.4
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    • pp.357-362
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    • 2015
  • In this experiment, we are to know the administered radioactivity in the actual patients by measuring the remained radioactivity when administering the isotope with noted MDP, the radiopharmaceutical product, to 50 visited patients for the bone scan, confirmed the radioactivity administered to actual patients. We confirmed the actual administered amount of remained radioactivity in the syringe and 3-way by using a gauger after administering the isotope with MDP noted via 3-way with 50 patients maintaining 3-way after CT or MRI among the visited patients for the bone scan in the department of nuclear medicine. As a result of radioactivity in the 3-way and syringe pre and post injection of radiopharmaceutical products in 50 patients, average radioactivity of pre-injection is 31.75 mCi, average remained radioactivity in the syringes after injection is 1.22 mCi, and the average remained radioactivity in 3-way after injection is 0.95 mCi. The average of actual administered radioactivity is 29.57, so it is obvious that average 2.18 mCi was administered for less than the dosage that we initially intended to inject. When determining the dosage in view of the radioactivity that remains in the 3-way with the syringe, it would be possible to accurately dose the desired dosage to be administered to actual patients.

Optimization of Flushing through Correlation Analysis between the Number of Flushing and Residual Activity in PET/CT (PET/CT에서 최적의 플러싱횟수를 위한 잔류방사능과의 상관분석)

  • Woo-Yeong Choi;Yeong-Sik Jee;Chang-Yong Yoon
    • Journal of the Korean Society of Radiology
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    • v.17 no.5
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    • pp.701-707
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    • 2023
  • In PET/CT, the injection volume of 18F-FDG directly affects the SUV(standard uptake value), which can affect the reading results. Therefore, it is important to inject the correct dose value of 18F-FDG. In this study, we performed the correlation between the residual radioactivity remaining in the syringe and catheter insertion device according to the number of flushing during 18F-FDG injection. CRC-25R dose calibrator, catheter insertion devices, 3 cc syringes and 50 cc physiological saline were used in this study, and the results were statistically analyzed. As a result, the total residual radioactivity of the syringe and catheter insertion device remained the highest at 5.84% after two flushing, and the least remained at 1.49% after five flushing. The correlation analysis results showed that the number of flushing had a negative correlation with the residual radioactivity of the syringe at -0.436 and the catheter insertion device at -0.300. As a result of one-way distributed analysis of the average according to the number of flushing, the syringe showed a significant decrease at 4 times, and the catheter insertion device showed a significant decrease at 5 times. However, considering that an average of 0.8% remains in the case of catheter insertion devices, four time flushing seems to be the most appropriate.