• Title/Summary/Keyword: GB14

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An Effect of Electrical Interconnect in Optical Transceiver Module (광송수신 모듈 구현을 위한 전기 접속부에 관한 연구)

  • 조인귀;한상필;윤근병;정명영
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.14 no.8
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    • pp.863-870
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    • 2003
  • The digital transmission system entered in a RF region as digital system use IC chips of the speeder edge rate and clock speed nowadays. Optical path really was used in order to obtain the more capacity. In this paper, we described importance of electrical interconnect to get the signal integrity in optical module by simulation and experiment. 12 channel${\times}$2.5 G/ps optical parallel transmitter modules were manufactured by two different method ; access lines with microstrip and stripline type. We have clearly shown that the optical module adopting microstrip type with S$\sub$11/ $\geq$ -10 dB presents distortion but the optical module adopting stripline type with S$\sub$11/ $\leq$ : 15 dB obtains eye opening in 2.5 Gbis optical eye pattern response.

Documentary comparative study on the chief virtues of the Back-Su(兪) points and the Front-Mo(募) points (배유혈(背兪穴)과 복유혈(腹募穴)의 주치증(主治症)에 관한 문헌적(文獻的) 비교(比較) 연구(硏究))

  • Park Sa-Hyun;Cho Myung-Rae
    • Korean Journal of Acupuncture
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    • v.18 no.1
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    • pp.117-141
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    • 2001
  • From documentary comparative study on the chief virtues of the Back-Su(兪) points and the Front-Mo(募) points, the following results are obtained : 1. Contrast the Back-Su(兪) points with the Front-Mo(募) points, the needle-steadying depth of the Front-Mo(募) points is deeper than that of the Back-Su(兪) points. and Moxibustion dosage of the Front-Mo(募) points is more than that of the Back-Su(兪) points. 2. In the case of Kimun(LR14) and Kansu(BL18), Kergwol(CV12) and Shimsu(BL15), Chungwan(CV12) and Wisu(BL21), Kyungmun(GB25) and Shinsu(BL23), the Back-Su(兪) points can be chiefly used for the treatment of acute disease, external disease, exess disease and Jang(臟)-disease. contrary the Front-Mo(募) points can be chiefly used for the treatment of chronic disease, internal disease, deficiency disease and Bu(腑)-disease. 3. In the case of Kwangwon(CV4) and Sojangsu(BL27), Serkmoon(CV5) and Samchosu(BL22), Changmun(LR13) and Bisu(BL20), Chungbu(LV1) and Pesu(BL20), Chungguk(CV3) and Banggwangsu(BL28), the Front-Mo(募) points can be used for the treatment of unbalanced visceral funtion. contrary the Back-Su(兪) points can be used for not only the treatment of unbalanced visceral funtion but also the treatment of attached organs. 4. The Back-Su(兪) points can be used for the treatment of acute disease, external disease, exess disease, Jang(臟)-disease and attached organs-disease. contrary the Front-Mo(募) points can be chiefly used for the treatment of chronic disease, internal disease, deficiency disease, and Bu(腑)-disease.

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Study on the Severity Measurement and the Correlation between Acupoints on the Face and the Upper limb in Bell's Palsy Patients by using of DITI (DITI를 이용한 Bell's palsy환자의 증상 중등도 및 안면과 상지에 분포한 경혈의 관계에 대한 고찰)

  • Lee, Won-Hui;Lim, Ho-Jea;Song, Soo-Cheol;Kim, Jung-Uk;Bae, Ki-Tae;Moon, Sung-Il
    • Journal of Acupuncture Research
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    • v.23 no.5
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    • pp.93-103
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    • 2006
  • Objectives : To Investigate Severity Measurement and the Correlation between Acupoints on the Face and the Upper limb in Bell's Palsy Patients by Using of DITI. Methods : By using of DITI, thermal differences between abnormal and normal site in acupoints on the face and the upper limbs of 21 Bell's palsy patients who visited department of Acupuncture & Moxibustion in National Medical Center from 1st February 2004 to 31th December 2005 were measured around 7days after the onset in standardized Environment. The patients were classified by severity scale. Results : The means of thermal difference of the facial acupoints were significantly distributed at each grade. The thermal difference of GB14 was significantly correlated with thermal difference of TE4, the thermal difference of S4 was significantly correlated with thermal difference of L6 and SI4, the thermal difference of STI18 was significantly correlated with thermal difference of LI11 and the thermal difference of LI20 was significantly correlated with thermal difference of LI11 and LI4. The thermal differences of acupoints in Large intestine meridian were more closely correlated with thermal difference of the facial acupoints than thermal difference of acupoints in the other meridians. Conclusion : Severity of Bell's palsy can be presumed through DITI image. And the theory of meridian was confirmed by DITI in Bell's palsy patients.

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A Philological Study on the Pathology, Acupuncture and Moxibustion of Alopecia (탈발(脫髮)의 병인병기(病因病機) 및 침구치료(鍼灸治療)에 관한 문헌고찰)

  • Lee, Sang Hyun;Cho, Myoung Rae
    • Journal of Acupuncture Research
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    • v.32 no.2
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    • pp.35-57
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    • 2015
  • Objectives : The purpose of this study is to analyze literature on oriental medicine to investigate the pathology, acupuncture, and moxibustion therapy applicable to alopecia Methods : We searched for the causes of alopecia in the bibliographic data from 41 sources of literature and the acupunctural treatments for alopecia in the bibliographic data from 49 sources of Chinese and Korean literature and from the journals of the acupunctural treatments for alopecia which have been published since 2000. Results : 1. The main causes of alopecia are blood deficiency, blood heat, static blood, depletion of kidney's water, wind excess, seven emotional damage, dietary damage, etc. 2. The acupuncture points frequently used are $GV_{20}$, $GB_{20}$, $ST_{36}$, $SP_6$, $SP_{10}$, $BL_{17}$, $BL_{18}$, $BL_{23}$, $GV_{23}$, $GV_{14}$, $CV_6$, $ST_8$, $KI_3$, $LR_3$, $HT_7$, $LI_{11}$, EX-$HN_1$, and ouch point. 3. New acupuncture therapies, including herbal acupuncture therapy, ear acupuncture therapy, dermal needle therapy, needle-embedding therapy and scalp acupuncture therapy are frequently used to treat alopecia. Conclusions : The acupuncture points frequently used for treating alopecia have characteristics such as tonifying blood, tonifying the liver and kidney, extinguishing wind, activating blood, clearing heat and draining dampness, so they are highly associated with the causes and the mechanisms of alopecia.

A Study on the Development of a Computerized Nutritional and Health Guide Program Based on Periodic Health Examination at Work Sites (근로자 정기건강검진을 기초로 한 영양 및 건강관리 전산화 프로그램 개발에 관한 연구)

  • 조여원;노성윤
    • Korean Journal of Community Nutrition
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    • v.7 no.2
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    • pp.266-276
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    • 2002
  • In this study, a computerized nutritional and health guide program for workers was developed. The dietitian at the work site could utilize periodically conducted medical examination data to develop an effective health care counseling model based on the developed Nutritional and Health Guide Program. A personal computer (Pentium II PC MMX-150, 32MB RAM, 2.95 GB HDD) with Microsoft Visual Basic 6.0 Enterprise Edition and Microsoft Access 97 installed, was used. The Nutritional and Health Guide Program consisted of seven main menus and 43 sub-menus. Included in the main menu were Basic Information, Periodic Health Check-ups, Visitors' Consultations, Nutritional/Health Tips, Nutritional Education according to Diseases, Help and Exit. In the Periodic Health Check-up menu, dieticians could input the health examination data of employees and touch for the recommended treatments for diseases such as obesity, diabetes, high cholesterol, hypertension and hepatitis. The Visitors'Consultation menu has been designed to compile health information about the employees who sought consultations. The Nutritional/Health Tips menu was designed to provide 14 kinds of programmed nutritional educational media and information. In the Nutritional Education According to Diseases menu, the dietitian could judge the subject's willingness to obtain treatment based on the Stage of Change Model. According, the content of the administered respective nutritional education was classified by stages. The Help menu, provide a chart of the method and procedure used as nutritional guidelines, by which the results of the health examination were classified as people in good health and those requiring special medical attention. The results of the evaluation of this program showed highly positive rates for usefulness (4.09), convenience (4.04), lettering size (4.02), interest (3.93), design (3.49). It also showed that 97.5% of the subjects thought that this program would be helpful for implementation of their company's nutritional educational program. Therefore, this menu could help dietitians plan, conduct, and evaluate their nutritional guidelines for employees. It is expected that The Nutritional and Health Guide Program developed in this study will play a role as a scientific and effective guide in conjunction with health examination results.

The effect of silane and universal adhesives on the micro-shear bond strength of current resin-matrix ceramics

  • Sarahneh, Omar;Gunal-Abduljalil, Burcu
    • The Journal of Advanced Prosthodontics
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    • v.13 no.5
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    • pp.292-303
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    • 2021
  • PURPOSE. The aim of this in vitro study was to evaluate the effect of silane and universal adhesive applications on the micro-shear bond strength (µSBS) of different resin-matrix ceramics (RMCs). MATERIALS AND METHODS. A total of 120 slides (14 × 12 × 1 mm) were produced from 5 different RMC materials (GC Cerasmart [GC]; Brilliant Crios [BC]; Grandio blocs [GB]; Katana Avencia [KA]; and KZR-CAD HR 2 [KZR]) and sandblasted using 50 ㎛ Al2O3 particles. Each RMC material was divided into six groups according to the surface conditioning (SC) method as follows: control (G1), silane primer (G2), silane-free universal adhesive (G3), silane-containing universal adhesive (G4), silane primer and silane-free universal adhesive (G5), and silane primer and silane-containing universal adhesive (G6). Three cylindric specimens made from resin cement (Bifix QM) were polymerized over the treated surface of each slide (n = 12). After thermal cycling (10000 cycles, 5 - 55℃), µSBS test was performed and failure types were evaluated using a stereomicroscope. Data were analyzed using 2-way ANOVA and Tukey tests (α = .05). RESULTS. µSBS values of specimens were significantly affected by the RMC type and SC protocols (P < .001) except the interaction (P = .119). Except for G2, all SC protocols showed a significant increase in µSBS values (P < .05). For all RMCs, the highest µSBS values were obtained in G4 and G6 groups. CONCLUSION. Only silane application did not affect the µSBS values regardless of the RMC type. Moreover, the application of a separate silane in addition to the universal adhesives did not improve the µSBS values. Silane-containing universal adhesive was found to be the best conditioning method for RMCs.

Developing a BIM-Based Methodology Framework for Sustainability Analysis of Low Carbon High-Rise Buildings

  • Gan, Vincent J.L.;Li, Nan;Tse, K.T.;Chan, C.M.;Lo, Irene M.C.;Cheng, Jack C.P.
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.14-23
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    • 2017
  • In high-density high-rise cities such as Hong Kong, buildings account for nearly 90% of energy consumption and 61% of carbon emissions. Therefore, it is important to study the design of buildings, especially high-rise buildings, to achieve lower carbon emissions in the city. The carbon emissions of a building consist of embodied carbon from the production of construction materials and operational carbon from energy consumption during daily operation (e.g., air-conditioning and lighting). An integrated analysis of both types of carbon emissions can strengthen the design of low carbon buildings, but most of the previous studies concentrated mainly on either embodied or operational carbon. Therefore, the primary objective of this study is to develop a holistic methodology framework considering both embodied and operational carbon, in order to enhance the sustainable design of low carbon high-rise buildings. The framework will be based on the building information modeling (BIM) technology because BIM can be integrated with simulation systems and digital models of different disciplines, thereby enabling a holistic design and assessment of low carbon buildings. Structural analysis program is first coupled with BIM to validate the structural performance of a building design. The amounts of construction materials and embodied carbon are then quantified by a BIM-based program using the Dynamo programming interface. Operational carbon is quantified by energy simulation software based on the green building extensible Markup Language (gbXML) file from BIM. Computational fluid dynamics (CFD) will be applied to analyze the ambient wind effect on indoor temperature and operational carbon. The BIM-based framework serves as a decision support tool to compare and explore more environmentally-sustainable design options to help reduce the carbon emissions in buildings.

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Recent Clinical Research on Acupuncture Therapy for Cluster Headache (군발성 두통에 대한 최근 침치료 연구 동향)

  • Sung-eun Kim;Ae-ri Lee;In Lee
    • The Journal of Internal Korean Medicine
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    • v.44 no.6
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    • pp.1197-1211
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    • 2023
  • Objectives: This study presents evidence by analyzing the research trends in acupuncture treatment for cluster headache in the last 10 years. Methods: Randomized controlled trials (RCTs) about acupuncture for cluster headache were searched from the China National Knowledge Infrastructure, PubMed, Cochrane Library, Oriental Medicine Advanced Searching Integrated System, ScienceON, Korean Studies Information Service System, and Research Information Sharing Service. The search terms were the combinations of "cluster headache", "acupuncture", and "needle therapy", and the articles were restricted to those published between 2013 and 2023. Only RCTs were selected. The risk of bias (RoB) was assessed according to the revised Cochrane RoB2 criteria. Results: Six RCTs were selected and analyzed in this review. All selected studies were conducted in China. All RCTs comprised 628 participants. Manual acupuncture was used in all studies. Acupuncture targeting the sphenopalatine ganglion was performed in two papers published after 2020. ST8, Ex-HIN3, and GB14 were the most frequently used acupoints in acupuncture treatment. The most commonly used indicators for evaluation were headache attack frequency, clinical efficacy, and the visual analog scale. In each study, adding acupuncture treatment to conventional therapy had significant effects in relieving the symptoms of cluster headaches. Conclusion: The results suggest that acupuncture is an effective treatment for cluster headache. To ensure objective evidence for the effectiveness of acupuncture treatment in cluster headache, it is important to continue large-scale case reports and RCTs.

High-Speed Implementation and Efficient Memory Usage of Min-Entropy Estimation Algorithms in NIST SP 800-90B (NIST SP 800-90B의 최소 엔트로피 추정 알고리즘에 대한 고속 구현 및 효율적인 메모리 사용 기법)

  • Kim, Wontae;Yeom, Yongjin;Kang, Ju-Sung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.28 no.1
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    • pp.25-39
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    • 2018
  • NIST(National Institute of Standards and Technology) has recently published SP 800-90B second draft which is the document for evaluating security of entropy source, a key element of a cryptographic random number generator(RNG), and provided a tool implemented on Python code. In SP 800-90B, the security evaluation of the entropy sources is a process of estimating min-entropy by several estimators. The process of estimating min-entropy is divided into IID track and non-IID track. In IID track, the entropy sources are estimated only from MCV estimator. In non-IID Track, the entropy sources are estimated from 10 estimators including MCV estimator. The running time of the NIST's tool in non-IID track is approximately 20 minutes and the memory usage is over 5.5 GB. For evaluation agencies that have to perform repeatedly evaluations on various samples, and developers or researchers who have to perform experiments in various environments, it may be inconvenient to estimate entropy using the tool and depending on the environment, it may be impossible to execute. In this paper, we propose high-speed implementations and an efficient memory usage technique for min-entropy estimation algorithm of SP 800-90B. Our major achievements are the three improved speed and efficient memory usage reduction methods which are the method applying advantages of C++ code for improving speed of MultiMCW estimator, the method effectively reducing the memory and improving speed of MultiMMC by rebuilding the data storage structure, and the method improving the speed of LZ78Y by rebuilding the data structure. The tool applied our proposed methods is 14 times faster and saves 13 times more memory usage than NIST's tool.

A New High-yielding Winter Oat Cultivar for Whole Crop Forage, 'Dahan' (내한 다수성 추파 조사료용 총체 귀리 신품종 '다한')

  • Han, Ouk-Kyu;Park, Tae-Il;Park, Hyung-Ho;Song, Tae-Hwa;Kim, Kee-Jong;Park, Nam-Geon;Ju, Jung-Il;Jang, Young-Jik;Hwang, Jong-Jin;Kwon, Young-Up
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.34 no.1
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    • pp.26-32
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    • 2014
  • 'Dahan' (Avena sativa L.), a winter oat cultivar for forage use, was developed by the breeding team at the Department of Rice and Winter Cereal Crop, National Institute Crop Science (NICS), Rural Development Administration (RDA) in 2011. It was derived from an original cross between $F_1$[Sprinter/73625] and 'Gwiri26'. Subsequent generations followed by the cross were handled in bulk and pedigree selection programs at Suwon. A line, 'SO99027-GB-B-113-4-4-3', was selected for cold tolerance and good agronomic characteristics and as a line name of 'Gwiri75'. The line 'Gwiri75' was subsequently evaluated for cold tolerance and forage yield during 3 years in four region such as Yesan, Iksan, Kimjae, and Jeju, from 2009 to 2011 and finally named as 'Dahan'. Though similar in heading date to the check cultivar Samhan, 'Dahan' had tall plant length and lodging resistance. It's average forage dry matter yield harvested at milk-ripe stage was 15.6 ton $ha^{-1}$, compared with 14.1 ton $ha^{-1}$ of check cultivar. Cultivar 'Dahan' was lower to the check cultivar 'Samhan' in protein content (8.4% and 9.9%, respectively), while it was superior to the check cultivar in total digestible nutrients (TDN) (60.8% and 59.3%, respectively), and in TDN yield $ha^{-1}$ (9.5 ton and 8.4 ton, respectively). Fall sowing of 'Dahan' is recommended only in the areas where daily minimum mean temperatures are averaged higher than $-7^{\circ}C$ in January, and excluded in mountain area where frost damage is presumable.