• Title/Summary/Keyword: dry scale

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Effect of Aspect Ratio and Location of Outlets on Ventilation Performance in a Dry Room (Dry Room에서 종횡비와 배기구 위치가 환기성능에 미치는 영향)

  • 이관수;임광옥;최석호
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.14 no.4
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    • pp.324-331
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    • 2002
  • The characteristics of moisture ventilation in a dry room are studied numerically The behaviors of moisture ventilation are analyzed by varying the aspect ratio of the horizontal plane and for various positions of the outlets in the room. Three different ventilation efficiencies have been used to examine the effect of the longitudinal arrangement of outlets and transverse arrangement of outlets for each aspect ratio on ventilation inside the room. It is shown that the ventilation efficiency in the dry room can be improved by arranging the outlets transversely in the cases that the aspect ratio is less than three and longitudinally in the cases that it is greater than four.

A Development of the Grain Moisture Dry System Using Water-rate Compensator and PID Controller (함수율 보정기와 PID제어기를 이용한 곡물 수분 건조 시스템 개발)

  • Lee, Chang-Kuen;Shim, Woo-Chul;Park, Sung-Jin;Hong, Yeon-Chan
    • Proceedings of the KIEE Conference
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    • 2001.11c
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    • pp.315-318
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    • 2001
  • In this paper recommends the development of automated silo dry & storage system. Most of existing round shaped iron silo arc used for only storage after dry and have many problems in storing. So We have developed an automated dry system which used the previously equipped silo and enables it to be used for storage after dry. The system features high frequency-resistance water sensor in Hopper scale that is in general use within the country its silo that is manufactured by the nerve DSP(TMS320C32) system water compensator and visualization that is finally realized with a personal computer.

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Numerical analysis on the flow field and moisture contamination in a dry room (Dry Room내 기류 및 수분오염에 관한 수치적 연구)

  • Lee, Kwan-Soo;Lim, Kwang-Ok;Jung, Young-Sick
    • Proceedings of the KSME Conference
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    • 2000.04b
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    • pp.865-870
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    • 2000
  • The flow and the moisture contamination of the dry room in the manufacturing process of lithium ion battery are analyzed numerically by finite volume method. Standard ${\kappa}-{\varepsilon}$ turbulent model widely applied in predicting turbulent flow is adopted in this study. Moisture contamination and distribution are studied by assumption of two cases; one-point generation and uniform generation throughout the room. To evaluate ventilation efficiency on moisture contamination, scales of ventilation efficiency are introduced. From these analyses, moisture contamination is strongly dependent on the flow field and the radius of moisture contamination can be reduced by closing a part of outlets in a dry room.

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Dry Needling and Electro-Dry Needling Improved the Trigger Thumb in a Patient Based on Anatomical Structure Without A1 Pulley Release: A Case Report (방아쇠 무지 환자를 A1 활차 박리없이 근골격계에 기반하여 침과 전침으로 호전시킨 1례: 증례보고)

  • Myung Hyun Yoon
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.17 no.2
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    • pp.101-108
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    • 2022
  • Objectives Most of the acupuncture or dry needling points for trigger finger were limited around the metacarpophalangeal joint, A1 pulley, and flexor muscle tendon. Thus, this study aimed to report a case of a patient with trigger thumb which improved using dry needling on additional muscle points. Methods The author has investigated why additional points are needed including what its accompanying effects are. Dry needling and electro-dry needling have been conducted based on anatomical structure. Moreover, a follow-up observation was performed twice to evaluate if the effects of this treatment have been maintained. Treatment progress was evaluated using a numeric rating scale (NRS) and Quinnell's classification of trigger finger. Results After 28 days of treatment, NRS and Quinnell's trigger grade decreased significantly without adverse effects. The treatment effect has been maintained until follow-up observation. Conclusions Additional points are recommended for the radical treatment of trigger finger.

Improvement of Brightness for AlGaInP High-brightness LEDs with Nano-scale Roughness on Top-GaP Surface (Top-GaP 상부에 나노 크기의 Roughness 처리에 의한 AlGaInP 고휘도 LED의 휘도 향상)

  • So, Soon-Jin;Ha, Hun-Sung;Park, Choon-Bae
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.21 no.1
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    • pp.68-72
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    • 2008
  • AlGaInP high-brightness LEDs(HB-LEDs) have gained importance a variety of application operating in the red, orange, yellow and yellow-green wavelength. The light generated from inside LED chips should be emitted to the air through the surfaces of the chips. However, because of the differences between the semiconductor and air or epoxy's refractive index, some of the light was blocked so that caused lowering external quantum efficiency. In this study, nano-scale roughness on the top-GaP layer of AlGaInP epitaxial wafer was fabricated to improve' the brightness of AlGaInP LEDs. Nano-scale roughness was made by ICP dry etcher. Our AlGaInP LEDs with nano-scale roughness has higher brightness (about 28.5 %) than standard AlGaInP LEDs.

Case Report of Unspecified Tremor with Xerostomia Resulting from Psychometric Drug Intake Treated by Traditional Korean Medicine (한방치료로 호전된 상세불명의 떨림과 동반된 정신과계통 약물유발성 구강건조증 치험 1례)

  • Jung, Yu-jin;Kim, Minserh;Hong, Sang-hoon
    • The Journal of Internal Korean Medicine
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    • v.39 no.5
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    • pp.914-928
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    • 2018
  • Objectives: This case report examines the effects of traditional Korean medicine for unspecified tremor with xerostomia caused by psychometric drug intake. Methods: A patient who suffered from unspecified tremor with xerostomia caused by psychometric drug intake was treated with acupuncture, pharmacopuncture, and traditional Korean medicine for 30 days. We provided the patient with herbal medicines including Ondam-tang-gagam (溫膽湯加減), Pumsimgieum-gagam (忿心氣陰加減), and Hoichunyanggyeok-san-gami (回春凉隔散加味). Symptoms were charted and evaluated using the Yin-deficiency questionnaire score, Yin-deficiency scale score, dry mouth symptom questionnaire, and visual analogue scale. Results: After treatment with Korean Medicine and pharmacopuncture, the frequency and degree of tremor has decreased, and degree of Xerostomia also improved. The Scores of Yin-deficiency questionnaire score, Yin-deficiency scale score, dry mouth symptom questionnaire, and visual analogue scale were also improved. And we could see reduction in the level of distribution of gastrointestinal heat at Digital Infrared Thermal Imaging test. The patient's Symtoms (Xerostomia as well as unspecified tremor) were improved after treated with Korean Medicine and pharmacopuncture. Conclusion: Korean medicine treatments may be valuable for xerostomia caused by psychometric drug intake.

Associated factors of self-reported dry mouth in adults (일부 성인의 주관적 구강건조증에 영향을 미치는 요인)

  • Kim, Sun-Sook;Youn, Hye-Jeong
    • Journal of Korean society of Dental Hygiene
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    • v.15 no.1
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    • pp.55-62
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    • 2015
  • Objectives: The purpose of this study was to investigate the associated factors of self-reported dry mouth in adults. Methods: A self-reported questionnaire was filled out by 249 adults in Seoul and Gyeonggi-do from June to October, 2014. The questionnaire consisted of general characteristics of the subjects, age, monthly income, smoking, alcohol drinking, and systemic diseases including systemic diseases, medication, oral health status, and stress. The question for dry mouth consisted of dryness in skin, eyes, lips, and nasal mucosa. The subjective dry mouth consisted of 6 questions measured by visual analogue scale(VAS). Cronbach's alpha was 0.881 in the study. Oral health related quality of life (OHIP-14) was adapted from Yoon. The questionnaire for OHIP-14 included functional limitation, physical pain, psychological disability, social disability, and experience in hadicap measured by Likert 5 scale. Cronbach's alpha was 0.885 in the study. Data was analyzed for a t-test, one-way ANOVA and multiple regression analysis by using SPSS(SPSS 18.0, USA) program. Results: There were positive correlations between oral health-related quality of life and self-reported dry mouth (functional limitation r=0.288, physical pain r=0.219, psychological discomfort r=0.193, physical disability r=0.280, psychological disability r=0.205, social disability r=0.224 and handicap r=0.270). In the multiple regression analysis, variation of self-reported dry mouth were positively associated with dry eyes{very often(${\beta}=0.305$)), sometimes(${\beta}=0.186$)}, dryness on lips{very often(${\beta}=0.247$), sometimes(${\beta}=0.177$)}, handicap(${\beta}=0.152$), physical disability(${\beta}=0.128$) and alcohol drinking(1-2 times/week)(${\beta}=0.116$) (p<0.001). Conclusions: Self-reported dry mouth may cause deterioration of the entire body dryness(dryness on eyes and lips), low oral health-related quality of life(handicap and physical disability) and alcohol drinking. Thus, It is necessary to develop oral health education programs to prevent and manage dry mouth in adults.

Effects of Korean Red Ginseng on Dry Mouth: A Randomized, Double-Blind, Placebo-Controlled Trial

  • Park, Jae-Woo;Lee, Beom-Joon;Bu, Young-Min;Yeo, In-Kwon;Kim, Jin-Sung;Ryu, Bong-Ha
    • Journal of Ginseng Research
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    • v.34 no.3
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    • pp.183-191
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    • 2010
  • Dry mouth is easily neglected if not associated with oral diseases. Consequently, xerostomatic patients often use unconventional therapies. In traditional Korean medicine, Korean red ginseng (KRG) has long been used to relieve dry mouth. However, no clinical trials have investigated whether KRG actually has an effect on dry mouth. This study was performed to evaluate the efficacy of KRG for dry mouth. We enrolled 100 volunteers with no obvious oral or salivary gland diseases and divided them into KRG and placebo groups. Each group was divided into six subgroups according to age and gender. The subjects received 6 g/day of KRG or placebo for 8 weeks. The dry mouth visual analog scale (VAS), salivary flow rate, and a dry mouth-related symptom questionnaire were evaluated at baseline and at 4 and 8 weeks. KRG treatment did not show any significant differences for any of the variables. However, KRG improved the dry mouth VAS at 4 weeks and dry mouthrelated symptoms at 8 weeks in women, but not in men. Subgroup analyses revealed that KRG markedly improved the dry mouth VAS in women of menopausal age (40 to 59 years) at 4 and 8 weeks. KRG may have beneficial effects for dry mouth in women, especially those of menopausal age, but not in men. Further investigation in post- and perimenopausal women is required to elaborate on these findings.

Application of Remote Sensing in Large Scale Irrigation System Management: A Case Study of Teesta Irrigation Project

  • Torii, Kiyoshi;Yoo, K.H.;Bari, Muhammad F.;Naz, Maheen
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1430-1432
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    • 2003
  • Agricultural areas in the north region of Bangladesh suffer from water shortages during the dry season as well as dry spells in the monsoon period. The Teesta Barrage was constructed in 1990 to provide supplemental irrigation water during the monsoon period. After completion of the project high yielding variety of crops were introduced more in the project area. Due to this reason unforeseen needs of irrigation water during the dry season has emerged. This study reviews the current irrigation status and related constraints to a full development of the project and provides suggestions for future improvement of the project. Also suggested is to apply remote sensing technique for the management of the system as a whole. Use of remote sensing technique for the management of irrigation water resources is a new approach in Bangladesh. Application of such a powerful tool will provide better management options for large-scale irrigation projects in the country.

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Characteristics silicon pressure sensor using dry etching technology (건식식각 기술 이용한 실리콘 압력센서의 특성)

  • Woo, Dong-Kyun;Lee, Kyung-Il;Kim, Heung-Rak;Suh, Ho-Cheol;Lee, Young-Tae
    • Journal of Sensor Science and Technology
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    • v.19 no.2
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    • pp.137-141
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    • 2010
  • In this paper, we fabricated silicon piezoresistive pressure sensor with dry etching technology which used Deep-RIE and etching delay technology which used SOI(silicon-on-insulator) wafer. We improved pressure sensor offset and its temperature dependence by removing oxidation layer of SOI wafer which was used for dry etching delay layer. Sensitivity of the fabricated pressure sensor was about 0.56 mV/V${\cdot}$kPa at 10 kPa full-scale, and nonlinearity of the fabricated pressure sensor was less than 2 %F.S. The zero off-set change rate was less than 0.6 %F.S.