• Title/Summary/Keyword: Standard Technique

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The Effect of Dose Distribution under Treatment Techniques on Cerebrospinal Irradiation (뇌 및 척수조사시 치료기법의 변화가 선량분포에 미치는 영향)

  • Lee, Seungchul;Kim, Youngjae
    • Journal of the Korean Society of Radiology
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    • v.10 no.1
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    • pp.21-28
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    • 2016
  • This study tries to evaluate the usefulness CSI treatment. Compare the standard technique and simple technique, using the volume region of a high dose of Field joints (hot spot) or low dose regions (cold Spot). In patients who agreed to this study, obtain CT image using CT simulator skull to pelvis region. Standard Technique were performed on the movement of the joint radiation field range and simple technique has set a treatment plan to secure the radiation field range and analyzed treatment planning. Under analysis standard technique occurred the area of the high dose(Hot Spot) for the area overlapping the field and simple technique showing a uniform doses. CI indices of standard technique and simple technique was 1.6~3, 1.6~1.87, CN indices was 0.32~0.53, 0.46~0.51 and HI indices was 0.11~0.33, 0.2~0.26. Therefore, adjacent to part of the dose distribution junction more equally than simple technique compared to the Standard Technique. Compare the dose distribution patterns using CI, CN, HI indices, showed a uniform dose distribution in the simple technique. so, simple technique was determined appropriate treatment the CSI.

A Groove Technique for Securing an Electrode Connector on the Cranial Bone : Case Analysis of Efficacy

  • Lee, Sung-Woo;Lee, Myung-Ki;Seo, Il;Kim, Ho-Sang;Kim, Jeong-Ho;Kim, Yun-Suk
    • Journal of Korean Neurosurgical Society
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    • v.56 no.2
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    • pp.130-134
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    • 2014
  • Objective : A groove technique for securing an electrode connector was described as an alternative surgical technique in deep brain stimulation (DBS) surgery to avoid electrode connector-related complications, such as skin erosion, infection, and migration. Methods : We retrospectively reviewed 109 patients undergoing one of two techniques; the standard technique (52 patients using 104 electrodes) and the groove technique (57 patients using 109 electrodes) for securing the electrode connector in DBS surgery, regardless of patient disease. In the standard percutaneous tunneling technique, the connector was placed on the vertex of the cranial surface. The other technique, so called the groove technique, created a groove (about 4 cm long, 8 mm wide) in the cranial bone at the posterior parietal area. Wound erosion and migration related to the connectors were compared between the two techniques. Results : The mean follow-up period was 73 months for the standard method and 46 months for the groove technique. Connector-related complications were observed in three patients with the groove technique and in seven patients with the standard technique. Wound erosion at the connector sites per electrode was one (0.9%) with the groove technique and six (5.8%) with the standard technique. This difference was statistically significant. The electrode connector was migrated in two patients with the groove technique and in one patient with the standard technique. Conclusions : The groove technique, which involves securing an electrode using a groove in the cranial bone at the posterior parietal area, offers an effective and safe method to avoid electrode connector-related complications during DBS surgery.

The Accuracy of the Radiographic Method in Root Canal Length Measurement (근광장 측정에서 방사선 사진술의 정확도)

  • Jo Eun-Young;Park Chang-Seo
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
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    • v.28 no.2
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    • pp.471-489
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    • 1998
  • For the successful endodontic treatment, root canal should be cleaned thoroughly by accurate mechanical and chemical canal preparation and sealed completely with canal filling material without damaging the periapical tissues. The accuracy of the root canal length measurement is a prerequisite for the success of the endodontic treatment, and the root canal length is often determined by the standard periapical radiographs and digital tactile sense. In this study, the accuracy and the clinical usefulness of Digora/sup (R)/, an intraoral digital imaging processor and the conventional standard radiographs were compared by measuring the length from the top of the file to the root apex. 30 single rooted premolars were invested in a uniformly sized blocks and No.25 K-file was inserted into and fixed in each canal. Each block was placed in equal distance and position to satisfy the principle of the bisecting angle and paralleling techniques and Digora/sup (R)/ system's image and standard periapical radiographs were taken. Each radiograph was examined by 3 different observers by measuring the length from top of the file to the root apex and each data was compared and analyzed. The results were as follows; 1. In the bisecting angle technique, the average difference between the Digora/sup (R)/ system and standard periapical radiograph was 0.002 mm and the standard deviation was 0.341 mm which showed no statistically significant difference between the two systems(p>0.05). Also, in the paralleling technique, the average difference between these two system was 0.007 mm and the standard deviation was 0.323 mm which showed no statistically significant difference between the two systems(p>0.05). 2. In Digora/sup (R)/ system, the average difference between the bisecting angle and paralleling technique was -0.336 mm and the standard deviation was 0.472 mm which showed a statistically significant difference between the two techniques(p<0.05). Also, in the standard periapical radiographs, the average difference between the bisecting angle and paralleling technique was 0.328 mm and the standard deviation was 0.517 mm which showed a statistically significant difference between these two techniques(p<0.05). 3. In Digora/sup (R)/ system and the standard periapical radiographs. there was a statistically significant difference between the measurement using the bisecting angle technique and the actual length(p<0.05), But there was no statistically significant difference between the measurement using the paralleling technique and the actuallength(p>0.05). In conclusion. the determination of the root canal length by using the Digora/sup (R)/ system can give us as good an image as the standard periapical radiograph and using the paralleling technique instead of the bisecting angle technique can give a measurement closer to the actual canal length. thereby contributing to a successful result. Also. considering the advantages of the digital imaging processor such as decreasing the amount of exposure to the patient. immediate use of the image. magnification of image size. control of the contrast and brightness and the ability of storing the image can give us good reason to replace the standard periapical radiographs.

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The Study for Application of the Hot Medicinal Compress Technique of the Donguibogam ("동의보감(東醫寶鑑)"에 기재된 위법(熨法)의 활용에 대한 조사)

  • Kwon, O-Sang;Baek, Seung-Min;Kim, Sul-Gi;Choi, Sun-Mi
    • Korean Journal of Acupuncture
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    • v.28 no.4
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    • pp.137-145
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    • 2011
  • Objectives : This research dealt with the content of the hot medicinal compress technique in Donguibogam in order to develope the hot medicinal compress technique as a new therapy technique. Methods : In this research, we searched for the hot medicinal compress treatment in Donguibogam. Results : The hot medicinal compress technique mainly cures the diseases on the body surface and it can be applied to digestive troubles and gynecologic diseases. The hot medicinal compress technique is operated mainly at wound around the affected parts and it is applied to the constitutional symptom at the abdominal region. In the hot medicinal compress technique was used much more with medication, and the herbs used in the treatment consists of hot tastes and the warm characteristics. In the hot medicinal compress method with direct heating the herbs was mainly used. Conclusions : The hot medicinal compress technique is considered as treatment which can be utilized easily and it can be used an easy and useful self-treatment.

Development of Standard Breakdown Structure of Temporary Construction Technique in Building Construction focused on Site Manager (현장 관리자 중심의 건축공사 가설기술 표준분류체계구축)

  • Kim, Min-Jeong;Park, Jun-Mo;Kim, Ok-Kyue;Choi, Byung-Joo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.05a
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    • pp.117-118
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    • 2012
  • This study has been reorganizing a standard breakdown structure of temporary technique focused on construction site. For this, first of all we, the authors, reviewed features and present statuss of construction temporary technique, and could develop to the standard breakdown structure through studying a construction site and researching a delphi method. By using the standard breakdown structure obtained from this study, it is expected that the application of to information of construction business and plan to a schedule and a work.

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A Study on the Corrosion Resistance Test of Smoke Detectors (연기감지기의 내식시험에 관한 연구)

  • Kim, Hyeong-Gweon;Yoon, Hun-Ju;Kwon, Seong-Pil;SaKong, Seong-Ho;Back, Chang-Sun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.04a
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    • pp.155-158
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    • 2008
  • In this study we compared corrosion resistance tests which were carried out according to the national technique standard and the UL standard to ensure the reliability of smoke detectors in foul weather. The sensitivity of smoke detectors became so blunt that the least operational smoke concentration was a maximum change of 13% in the national technique standard, while it was a maximum change of 145% in the UL standard. As a result of this study the test method of corrosion resistance was made an objective evaluation in the national technique standard. Therefore it could be said that a basis of developing the test method of corrosion resistance was prepared for our country.

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Establishment of Standard Times Using STD Technique in Multi-product and One-unit Production Systems (다품종 단일제품생산 시스템에서 표준시간 자료법을 이용한 표준시간의 설정)

  • 박성학;최성운
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.10 no.16
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    • pp.27-38
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    • 1987
  • This paper develops a standard time table using STD(Standard Tine Data) Technique in multi-product and one-unit production systems. STD leads to greater consistency between similar jobs. The constant-time and special elements will always be the same even though they pertain to different part numbers. Actually, the standards will very based on the size of the variable elements that are in control of the time. A real-field example is presented.

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Using Standard Deviation with Analogy-Based Estimation for Improved Software Effort Prediction

  • Mohammad Ayub Latif;Muhammad Khalid Khan;Umema Hani
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.17 no.5
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    • pp.1356-1376
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    • 2023
  • Software effort estimation is one of the most difficult tasks in software development whereas predictability is also of equal importance for strategic management. Accurate prediction of the actual cost that will be incurred in software development can be very beneficial for the strategic management. This study discusses the latest trends in software estimation focusing on analogy-based techniques to show how they have improved the accuracy for software effort estimation. It applies the standard deviation technique to the expected value of analogy-based estimates to improve accuracy. In more than 60 percent cases the applied technique of this study helped in improving the accuracy of software estimation by reducing the Magnitude of Relative Error (MRE). The technique is simple and it calculates the expected value of cost or time and then uses different confidence levels which help in making more accurate commitments to the customers.

An Improved Multiresolution Technique to Reconstruct Magnetoencephalography(MEG) Source Distribution

  • Im, Chang-Hwan;An, Kwang-Ok;Jung, Hyun-Kyo;Lee, Yong-Ho;Kwon, Hyuk-Chan
    • International Journal of Control, Automation, and Systems
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    • v.1 no.3
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    • pp.385-389
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    • 2003
  • In this paper, an improved technique for multiresolutive reconstruction of magnetoencephalography (MEG) source distribution is proposed. Using the proposed technique, focal solution with higher energy density can be reconstructed. Moreover, the proposed approach is very easy to implement compared to conventional ones. The usefulness of the proposed technique is verified by the application to a real brain model.

Inductive Switching Noise Suppression Technique for Mixed-Signal ICs Using Standard CMOS Digital Technology

  • Im, Hyungjin;Kim, Ki Hyuk
    • Journal of information and communication convergence engineering
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    • v.14 no.4
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    • pp.268-271
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    • 2016
  • An efficient inductive switching noise suppression technique for mixed-signal integrated circuits (ICs) using standard CMOS digital technology is proposed. The proposed design technique uses a parallel RC circuit, which provides a damping path for the switching noise. The proposed design technique is used for designing a mixed-signal circuit composed of a ring oscillator, a digital output buffer, and an analog noise sensor node for $0.13-{\mu}m$ CMOS digital IC technology. Simulation results show a 47% reduction in the on-chip inductive switching noise coupling from the noisy digital to the analog blocks in the same substrate without an additional propagation delay. The increased power consumption due to the damping resistor is only 67% of that of the conventional source damping technique. This design can be widely used for any kind of analog and high frequency digital mixed-signal circuits in CMOS technology