• Title/Summary/Keyword: diagnostic process

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Diagnostic Instruments of PLS-II

  • Kim, Chang-Beom;Kim, Do-Tae;Choe, Jae-Yeong;Lee, Heung-Su;Park, Eung-Su;Sin, Seung-Hwan;Hwang, Jeong-Yeon
    • Proceedings of the Korean Vacuum Society Conference
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    • 2012.02a
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    • pp.527-527
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    • 2012
  • In the Pohang Light Source (PLS), a major upgrade (PLS-II) of existing machine had been performed in last 3 years. Big improvements in beam parameters are expected from this major upgrade and various diagnostic instruments were installed to measure them. These include beam position monitor, beam current monitor, tune monitor, scraper, beam loss monitor, photon beam monitor, beam size monitor, streak camera, and so on. In this work, we would like to briefly introduce diagnostic instruments of the PLS-II and present measurement results in the commissioning process of the PLS-II.

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Laser Thomson Scattering for Measuring Plasma Temperature and Density in ICP

  • Seo, Byeong-Hun;Yu, Sin-Jae;Kim, Jeong-Hyeong;Jang, Hong-Yeong
    • Proceedings of the Korean Vacuum Society Conference
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    • 2011.08a
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    • pp.144-144
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    • 2011
  • Diagnostics of plasma density and temperature play an important role for monitoring plasma processing and Laser Thomson scattering is a one of the most accurate diagnostic technique for measuring plasma density and temperature because of none-perturbation to plasma among various diagnostic techniques invented to measure plasma density and temperature. I will briefly review Laser Thomson scattering experiment performed in KRISS and difficulties for measuring the electron velocity distribution such as Gaussian due to low signal-to-noise ratio with showing results that we got until now. This work is an intermediate step in a process that we will get a reliable data which shows physical phenomenon of plasma compared with other diagnostic techniques and results.

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Mastoid osteoma: A rare incidental finding in an orthodontic patient

  • Borissova, Ioanna B.;Venturin, Jaqueline S.;Claro-Woodruff, Wanda I.;Shintaku, Werner H.
    • Imaging Science in Dentistry
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    • v.50 no.4
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    • pp.347-351
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    • 2020
  • Mastoid osteomas of the temporal bone are rare, benign, and usually asymptomatic tumors. However, depending on their size and extension, mastoid osteomas may cause facial palsy, a sensation of ear fullness, pressure-related pain, hearing loss, recurrent external ear infections, and chronic discharge. The etiology of mastoid osteomas is still unknown, but congenital, infectious, and traumatic factors have been proposed. Surgical treatment may be performed with minimal postoperative morbidity. In this article, the authors report a case of a 48-year-old woman seeking orthodontic treatment with an unusual retroauricular protruding mass, including the diagnostic process and differential diagnosis. This case supports the essential role of cone-beam computed tomography to analyze and identify the lesion as a mastoid osteoma.

Invastigating literatures about mechanism of internal·external damage, through Qi mouth and Renying (기구(氣口), 인영맥(人迎脈)의 진단(診斷)을 통(通)한 내상(內傷), 외감병기(外感病機)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Kim, Moo-Sin;Cho, Myung-Rae;Park, Young-Bae
    • Journal of Acupuncture Research
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    • v.18 no.4
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    • pp.161-177
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    • 2001
  • Objective : We have studied the part, definition, diagnostic generaliztion and pathological viewpoint of Qi mouth and Renying by refering literatures Methods : I refered to records from anciant to modern. The results are followings : 1. Qi mouth and Renying is ancient diagnostic method and the origin of diagnostic method through the pulsation of radial artery. And Qi mouth is recognized as the right and left Qi mouth and Renying is located on pulsation points of both common carotid arteries. 2. The yin of five viscera, nutritional blood and viscous liquid are diagnosed by Qi mouth which is inclued lung meridian. And the yang of six organs, guarding Qi and the rise and fall of stomach energy are diagnosed by Renying which is inclued stomach meridian. 3. It is possible that the position, process and transformational condition of disease are decided by comparing and examining Qi mouth and Renying.

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A Case Report of Contact Dermatitis treated by Mahwang-tang based on Shanghanlun Provisions (『상한론(傷寒論)』 변병진단체계(辨病診斷體系)에 근거하여 마황탕(麻黃湯) 투여 후 호전된 접촉성피부염 1례)

  • Yun, Hyo-Joong;Ha, Hyun-yee;Rho, Yeong-Beom
    • 대한상한금궤의학회지
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    • v.8 no.1
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    • pp.53-65
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    • 2016
  • Objective : The purpose of this paper is to report the improved contact dermatitis(CD) treated with the herbal medication based on Shanghanlun disease pattern identification diagnostic system. The level V steroid ointments were no use to the patient 3weeks before the treatment. Methods : In this case, the patient was diagnosed according to 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions' and took Mahwang-tang for 36days since the final diagnosis was Taeyang-byung, number 46 provision. The photographs of patient's hands were taken to observe the process of the skin status and the discomfort from CD was measured with DLQI(Dermatologic Life Quality Index) and NRS(Numeric Rating Scale). Results : The DLQI score changed from 24 to 7 and NRS of itching changed form 8 to under 4. Conclusions : This case report shows that the herbal medication through the diagnostic system could be a remedy on CD, dealing with the skin status with no use of the level V steroid ointments. It is needed proving an alternative possibility of Korean Medicine, on other skin diseases, with later studies since there are many reports on the side-effects after some long-term steroid treatments.

Development of Farm Management Diagnostic Checklist Reflecting Crop Characteristics (작물 특성을 반영한 농가경영진단표 개발)

  • Choi, Don-Woo;Lim, Cheong-Ryong
    • Journal of Korean Society of Rural Planning
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    • v.23 no.2
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    • pp.1-7
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    • 2017
  • The purpose of this study is to develop a farm management diagnostic checklist form, which can be applied to any crops. First, upper indexes and subordinate indexes were identified through survey with expert, and weighted values for each subordinate index were calculated through AHP analysis. Second, as a reuslt of Analytic Hierarchy Process (AHP) analysis, marketing management (0.276) was found to be the most important index of all upper indexes. In the case of subordinate indexes, reflecting management evaluation (0.252) of management consciousness, quality enhancement efforts (0.332) of production management, locating new sales outlets (0.323) of marketing management, agriculture accounting (0.300) of finance management, and adjusting shipping dates (0.274) of risk management were found to be the highest. Third, the interval division using weight of farm receiving prices was higher discrimination in comparison to equal interval division of weighted values for each index. The newly developed farm management diagnostic checklist can be applied to any crops, as it utilizes indexes such as management consciousness, production management, marketing management, financial management, risk management, etc. based on professional opinions. In addition, it allows an objective evaluation of farm management situations by utilizing the weighted value of farm receiving prices.

Characteristics of Magnetic Resonance(M.R.) and Comprehension of its Imaging Mechanism (자기공명(M.R.)진단법의 특징 및 그 영상기전의 이해)

  • Chang, Jae-Chun;Hwang, Mi-Soo;Kim, Sun-Yong
    • Journal of Yeungnam Medical Science
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    • v.4 no.1
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    • pp.1-15
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    • 1987
  • Magnetic Resonance (M.R.) is rapidly emerging technique that provides high quality images and potentially provides much more diagnostic information than do conventional imaging modalities. M.R.I. is conceptually quite different from currently used imaging methods. The complex nature of M.R.I. allows a great deal of flexibility in image product ion and available information, and key points are as follows. 1. M.R.I. offers a non-invasive technique with which to gene rate in vivo human images without ionizing radiation and with no known adverse biological effects. 2. Imaging mechanism of M.R.I. is quite different from conventional imaging modality and for more accurate diagnostic application, It is necessary for physician to understand imaging mechanism of M.R.I. 3. M.R. makes available basic chemical parameters that may provide to be useful for diagnostic medical imaging and more specific pathophysiologic information which are not available by alternate techniques. 4. M.R. can be produced by number of different methods. This flexibility allows the imaging technique to be applicated for particular clinical purpose. Multiplanar and three dimensional imaging may extend the imaging process beyond the single section available with current CT. 5. Future directions include efforts to; a. Further development of hard ware b. More fasternning scan time c. Respiratory and cardiac gated imaging d. Imaging of additional nuclei except hydrogen e. Further development of contrast media f. M.R. in vivo spectroscopy g. Real time M.R. imaging.

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Development of Fault Diagnosis Technology Based on Spectrum Analysis of Acceleration Signal for Paper Cup Forming Machine (가속도 신호의 주파수 분석에 기반한 종이용기 성형기 구동축 고장진단 요소기술 개발)

  • Jang, Jaeho;Ha, Changkeun;Chu, Baeksuk;Park, Junyoung
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.15 no.6
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    • pp.1-8
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    • 2016
  • As demand for paper cups markedly increases, this has brought about a requirement to develop fast paper cup forming machines. However, the fast manufacturing speed of these machines causes faults to occur more frequently in the final product. To reduce the possibility of producing faulty products, it is necessary to develop technologies to monitor the manufacturing process and diagnose the machine status. In this research, we selected the main driving axis of the forming machine for fault diagnosis. We searched the states of rotational elements related to the driving axis and suggested a fault diagnostic system based on spectrum analysis consisting of a real-time data acquisition device, accelerometers, and a diagnosis algorithm. To evaluate the developed fault diagnostic system, we performed experiments using a test station which resembles the actual paper cup forming machine. As a result, we were able to confirm that the proposed system was sufficiently feasible to diagnose any abnormalities in the operation of the paper cup forming machine.

The Effect of Temperature Variations and Bonding Agents on Piezoelectric Sensor Diagnostics (온도 변화에 따른 압전체 센서 자가진단법 및 접합제의 영향에 대한 실험적 고찰)

  • Jo, HyeJin;Park, Tong-il;Park, Gyuhae
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2013.10a
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    • pp.799-804
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    • 2013
  • The sensor/actuator active sensor diagnostics procedure, where the sensors/actuators are confirmed to be functioning properly during operation, is a critical component to successfully complete the structural health monitoring (SHM) process with large numbers of active sensors typically installed in a structure. The basis of this process is to track the changes in the capacitive value of piezoelectric materials, which shows up in measured admittance. Due to the temperature dependent nature of piezoelectric materials, we investigated the effects of temperature variations on sensor diagnostic process. The effect of temperature variations found to be remarkable, modifying the measured capacitive values significantly. In addition we analyzed the effect of bonding agents between a PZT patch and a host structure. This paper summarizes considerations needed to develop such sensor diagnostic processes, experimental procedures and results, and additional issues that can be used as guidelines for future investigations.

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Artificial Intelligence-Based Breast Nodule Segmentation Using Multi-Scale Images and Convolutional Network

  • Quoc Tuan Hoang;Xuan Hien Pham;Anh Vu Le;Trung Thanh Bui
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.17 no.3
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    • pp.678-700
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    • 2023
  • Diagnosing breast diseases using ultrasound (US) images remains challenging because it is time-consuming and requires expert radiologist knowledge. As a result, the diagnostic performance is significantly biased. To assist radiologists in this process, computer-aided diagnosis (CAD) systems have been developed and used in practice. This type of system is used not only to assist radiologists in examining breast ultrasound images (BUS) but also to ensure the effectiveness of the diagnostic process. In this study, we propose a new approach for breast lesion localization and segmentation using a multi-scale pyramid of the ultrasound image of a breast organ and a convolutional semantic segmentation network. Unlike previous studies that used only a deep detection/segmentation neural network on a single breast ultrasound image, we propose to use multiple images generated from an input image at different scales for the localization and segmentation process. By combining the localization/segmentation results obtained from the input image at different scales, the system performance was enhanced compared with that of the previous studies. The experimental results with two public datasets confirmed the effectiveness of the proposed approach by producing superior localization/segmentation results compared with those obtained in previous studies.