• Title/Summary/Keyword: Grading

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Grade Classification of Urushi Lacquer (II) Grade Classification of Urushi Lacquer by Scientific Methods (옻칠의 품등 구분 (II) 과학적 방법에 의한 옻칠의 품등 구분)

  • Roh, Jeong-Kwan;Kim, Yun-Geun
    • Journal of the Korea Furniture Society
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    • v.19 no.5
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    • pp.307-318
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    • 2008
  • Scientific methods for grading urushi lacquer includes general properties (viscosity, pH etc), and quantitative analysis of moisture, urushiol, gum, laccase content etc, and properties of coating layer such as set to touch drying time, gloss, color difference, delamination strength, tensile strength of film. The grading results evaluated by scientific method showed n order with chinese urushi lacquer (E) > domestic urushi lacquer (A) > japanese urushi lacquer (C) > chinese urushi lacquer (D) > domestic urushi lacquer (B). It is different from hose of traditional methods. Therefore, a more accurate grading of urushi lacquer should be ade by combining traditional method with scientific method.

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Cam Design of Packer Holder in Egg Grading Machine (계란선별기 파커홀더 캠 개발)

  • Lee, Jang-Yong
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.32 no.10
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    • pp.897-904
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    • 2008
  • Egg grading machine is used in poultry raising industry to classify eggs by their weight and to pack up them. Packer holder mechanism is a main part of the egg grading machine, of which role is to take eggs fallen from conveyor belt, and afterward to transfer eggs vertically to mold tray. The vertical motion of packer holder is usually driven by slider-crank mechanism or cam. This paper describes development of the cam in packer holder based on kinematic analysis of packer holder mechanism and measurement of acceleration and noise of the cam to verify performance of it. Several cams that are designed and manufactured by the author of this paper according to different design specification are compared to determine the best solution for egg transfer in the packer holder mechanism.

Influences of Quality of Aggregate on the Properties of Cement Mortars in Floors Using Expansion Agent (팽창재를 사용한 바닥 모르타르의 특성에 미치는 골재품질의 영향)

  • 송명신;표대수;정성철;홍상희;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.10b
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    • pp.929-932
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    • 2000
  • In this paper, physical properties of fresh and hardened mortar for floor using expansion agent are described under various grain shape, grading and chloride contents of aggregates. According to experimental results, as fineness modulous increase, fluidity show high it also shows high with cement mortar using riversand and continuous distribution of grading. We can not detect any difference in fluidity according to chloride contents. Air content shows to be decreased with crushed stone having large fineness modulous and continuous distribute on of grading. chloride content does not influence on the air content. compressive strength tends to increase when crushed sand with continuous distribution of grading is used and chloride contents decreases.

Study on the Properties of Concrete according to the Grading of Crushed Stone (부순 굵은골재의 입도에 따른 콘크리트의 특성에 관한 연구)

  • Choi Se Jin;Lee Seong Yeon;Yeo Byung-Chul;Kim Moo Han
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.11a
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    • pp.213-216
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    • 2004
  • Aggregate occupies about 70 to 80 percent by volume in concrete as skeleton of concrete, but recently, it has been insufficient in quantity to collect good natural aggregate because of exhaustion of aggregate resources. In case of Korea, in 2002, the using ratio of crushed stone occupies about $97\%$ of whole coarse aggregate, and ratio of crushed sand occupies about $18.3\%$ of whole fine aggregate. This is an experimental study to compare and analyze the properties of concrete according to the grading of crushed stone to improve quality and mix design of concrete using crushed stone. According to results, it was found that grading level of crushed stone in the range of G42 to G60 was better than any other grading level in terms of fluidity and compressive strength. And it is considered to be in the range of 6.52 to 6.85 in terms of FM.

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APPLICATIONS OF NEURO-FUZZY TECHNIQUES TO COLOR IMAGE PROCESSINGS

  • Kurosawa, Masa-Akl;Gotoh, Kel-Lchl;Takagi, Tshiyukl;Nakanishi, Shohachiro
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1993.06a
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    • pp.960-963
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    • 1993
  • We focus our attention on grading of table meat in accordance with the standard of Japan Meat Grading Association, and construct a beef grading system by image processing. For image processing of beef grading, it needs some techniques such as a shading correction, separation of color image data, and classification of color image data into some grades, for the system construction. However, there are various kinds of weak points in usually used methods for these techniques. Then the authors propose and introduce new approaches using Neural networks and fuzzy inference for the techniques above mentioned, which is very convenient and ensure the high precision.

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Assessment of Recanalization after Intra-Arterial Thrombolysis in Patients with Acute Ischemic Stroke : Proposed Modification of the Qureshi Grading System

  • Kim, Jae-Hoon;Kang, Hee-In;Moon, Byung-Gwan;Lee, Seung-Jin;Kim, Joo-Seung
    • Journal of Korean Neurosurgical Society
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    • v.51 no.5
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    • pp.262-267
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    • 2012
  • Objective : We aimed to investigate the correlation between the success of recanalization and a modified version of the Qureshi grading system in acute ischemic stroke patients. Methods : We retrospectively analyzed the intra-arterial thrombolysis (IAT) records of 37 patients who were evaluated by Thrombolysis in Myocardial Infarction (TIMI) and a modified version of the Qureshi grading systems as follows : 1) post-IAT Qureshi grade, 2) modified ${\Delta}$ Qureshi grade : pre-IAT group grade - post-IAT group grade (grade 1 : Qureshi grades 0-2 and grade 2 : Qureshi grade 3-5) and 3) ${\Delta}$ Qureshi grade (post-IAT Qureshi grade - pre-IAT Qureshi grade). Successful recanalization was defined as follows : 1) post-IAT TIMI grades 2 and 3, 2) post-IAT Qureshi grade 0-2, 3) modified ${\Delta}$ Qureshi grade=1, and 4) ${\Delta}$ Qureshi grade of ${\geq}2$ and/or post-IAT Qureshi grade=0. We investigated the correlation between the post-IAT TIMI grade and the modified Qureshi grade and also compared the various grading systems with modified Rankin Scale scores for evaluating the clinical outcome at 3 months. Results : The post-IAT Qureshi grade and ${\Delta}$ Qureshi grade and/or post-IAT Qureshi grade were significantly correlated with the TIMI grade (${\gamma}$=0.976 and, 0.942, respectively). Further, post-IAT Qureshi grade and ${\Delta}$ Qureshi grade and/or post-IAT Qureshi grade showed a significantly stronger association with clinical outcome than did the post-IAT TIMI grade (p=0.001 and, 0.000 vs. 0.083, respectively). Conclusion : Our preliminary results suggest that the modified Qureshi grading system is a useful tool for assessing the success of recanalization after IAT.

The Relationship between Clinical Grading of Carpal TunnelSyndrome and Sensory nerve Conduction Velocity (수근관 증후군의 임상증상정도와 감각신경전도검사와의 관계)

  • Kwak, Jae-Hyuk;Lee, Dong-Kuck
    • Annals of Clinical Neurophysiology
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    • v.6 no.2
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    • pp.98-102
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    • 2004
  • Background: Carpal tunnel syndrome (CTS) is a common condition characterized by entrapment neuropathy of the median nerves. Clinical manifestations are the most important findings for diagnosis and assessment of therapeutic effects. But, objective indicators, such as electrophysiological findings, are also valuable supplementary tools. This study investigated the relationship between clinical grading and sensory nerve conduction velocity (SNCV) of median proper palmar digital nerve (MPPDN) in CTS patients. Method: This study was done on 90 upper limbs of 53 patients with CTS (men: 6, women: 47, age: 26~69 years, mean age; 52 years). Each SNCV of MPPDN was recorded with bar electrode using antidromic method. Each SNCV was compared with clinical grading of CTS. The clinical grades of CTS were designated as follows; group 1 is mild symptoms, 2 is moderate symptoms, and 3 is severe and longstanding symptoms. Result: In thumb, the SNCV of MPPDN was not different significantly between 3 groups (p=0.817). In the index finger, the SNCV was the fastest in the group 1, but faster in group 3 than in group 2 (p=0.001). In the middle and ring fingers, SNCV was decreased in higher clinical grading groups (middle finger: p=0.015, ring finger: p=0.044). Conclusion: SNCV of MPPDN of middle and ring finger correlated with the clinical grading of CTS. SNCV of index finger was the fastest in group 1. But SNCV of thumb did not correlate with the clinical grading of CTS.

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Clinical Observation of Effect on Severity of Symptoms and Safety of Auto-microneedle Therapy in Patients with Peripheral Facial Paralysis (자동 미세침이 말초성 안면마비 환자의 증상 정도 및 안전성에 미치는 영향에 대한 임상 관찰)

  • Lee, Ung-In;Kwon, You-Jung;Kim, Hyun-Ho;Yoo, Je-Hyuk;Kim, Kyung-Wook;Kang, Jung-Won;Lee, Sang-Hoon
    • Journal of Acupuncture Research
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    • v.29 no.4
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    • pp.35-42
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    • 2012
  • Objectives : This study was to observe clinical application of auto-microneedle therapy system (AMTS) in patients with peripheral facial paralysis. Methods : 27 peripheral facial paralysis patients were observed after taking AMTS at Facial Palsy Center, Kyung Hee University Oriental Medicine Hospital from March 1, 2011 to January 9, 2012. We assessed the symptoms of facial paralysis with Yanagihara unweighted grading system, Sunnybrook facial grading system(SBGS) and facial disability index(FDI), and observed adverse events and total safety of the treatment. Results : The scores of facial palsy scales increased after AMTS in Yanagihara grading system and Sunnybrook facial grading system. AMTS-related adverse events were mild pain(5.9%) and fatigue(3.5%), which needed no extra treatment. The total safety evaluation was between 'safe' and 'nearly safe' level. There were no other serious adverse events. In addition, patients were satisfied with subjective improvement including facial tingling and numbness. Conclusions : AMTS can be applied as an adjunctive treatment for patients with peripheral facial paralysis due to its safety and clinical usefulness. It is easier to stimulate wide skin area in a short time. Further clinical research is required to investigate the effectiveness of ATMS in a more rigorous RCTs.

Effect of Bee Venom Pharmacopuncture Complex Therapy on Peripheral Facial Paralysis (말초성안면신경마비에 대한 봉약침 복합치료 효과)

  • Yang, Ka-Ram;Song, Ho-Sueb
    • Journal of Acupuncture Research
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    • v.26 no.4
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    • pp.29-37
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    • 2009
  • Objectives : This study was to investigate the effectiveness of Bee Venom Pharmacopuncture complex therapy on peripheral facial paralysis. Methods : We investigated 30 cases of patients with Peripheral Facial Paralysis, and devided patients into two groups : We treated one group by complex oriental medical treatment with Bee Venom Pharmacopuncture therapy, and did the other group by complex oriental medical treatment without Bee Venom pharmacopuncture therapy. To investigate the effectiveness of treatment applied for two groups, we used Gross Grading System of House-Brackmann, Yanagihara's Unweighed Grading System at baseline, 3 weeks and final. Results : 1. Male, Female is same ratio in distribution of sex, the number of left side is more than that of right side in distribution of lesion, the average age is 49.33. 2. Pain back of the ear showed the highest frequency among Bell's palsy related symptoms at onset, the overwork was a major cause of Bell's palsy in distribution of cause. 3. As a result of evaluation by using Gross Grading System of House-Brackmann, Yanagihara's Unweighed Grading System, treatment score after 3weeks was marked higher than that before treatment and treatment score after final treatment was also marked higher than that after 3weeks within each group. 4. After final treatment, Bee Venom Pharmacopuncture therapy group showed signficant difference on Gross Grading System of House-Brackmann, Yanagihara's Unweighed Grading System compared with Acupuncture therapy group. Conclusions : Bee Venom Pharmacopuncture therapy can be available for relieving symptoms related with peripheral facial paralysis.

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Comparison of the Electronic Methods of Raw Silk Testing and Grading with Those of the Current Methods I. Defference in Inspection Results and Grading to the Electronic Methods (생사검사에 있어서 현행방법과 전자식 방법에 대한 비교분석 I. 전자식 검사방법에 의한 검사성적과 등급비교)

  • 최병희;김한수
    • Journal of Sericultural and Entomological Science
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    • v.34 no.1
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    • pp.57-71
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    • 1992
  • These studies were carried out to establish Korean opinion about "The electronic method of raw silk testing and grading" which was taken shape along with the report by Silk Standard Committee(S.S.C.) at the meeting of International Silk Association(I.S.A) Directing Board session held in Zurich Swiss. This establishment was througly examine whether or not the above are the essential factors to be fulfilled in force as a international standard method of raw silk testing and grading.d grading.

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