• Title/Summary/Keyword: standard GA

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Development of Larvae and Juveniles of the Smoothskin Scuplin, Ocynectes modestus (Ocynectes modestus (민가시꺽정이: 국명신칭) 자치어(仔稚漁)의 형태발달(形態發達))

  • Kim, Yong-Uk;Kang, Chung-Bae;Han, Kyeong-Ho
    • Korean Journal of Ichthyology
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    • v.12 no.2
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    • pp.146-153
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    • 2000
  • The development of larvae and juvenile of the smoothskin sculpin (Ocynectes modestus) caught at Pusan brook in May and June 1995 was described. Yolk was completely absorbed when the larvae was about 6.28 mm in average standard length (ASL) with 32~33 myomeres. Flexion of the notochord started when the juvenile was about 7.36 mm in ASL and finished about 9.34 mm in ASL, respectively. Aggregate numbers of all fin rays were completed at over 10.08 mm in ASL, when the larvae reached the juvenile stage. One pairs of flaps were observed on the dorsal surface of the head at 10.08 mm in ASL. The juveniles longer then 14.00 mm in ASL has the same pigment pattern as that of adults. A new Korean name "Min-Ga-Si-Ggeog-Jeong-i" is proposed for this species.

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Factors Influencing the Cognitive Degree of Dry Eyes in Nursing Students (간호대학생의 안구건조 자각정도에 영향을 미치는 요인)

  • Cho, Mi-Kyoung;Ga, Jeong Eun;Kim, Da In;Kim, Myeong Jin;Kim, So Yeon;Kim, Soo Ji;Kim, Seung Han;Choi, Gwang Bum
    • Perspectives in Nursing Science
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    • v.13 no.2
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    • pp.110-118
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    • 2016
  • Purpose: This study aimed to identify the factors that influence the cognitive degree of dry eyes in nursing students. Methods: This was a cross-sectional descriptive study. Data was collected using self-administered questionnaires (cognitive degree of dry eyes, Standard Patients Evaluation of Eye Dryness [SPEED] questionnaire, and McMonnies questionnaire) from 233 nursing students of E university. Results: The mean scores for the cognitive degree of dry eyes, SPEED, and McMonnies were 21.43, 8.02, and 6.39, respectively. The cognitive degree of dry eyes was found to have a significantly positive correlation with McMonnies and SPEED scores. Additionally, the factors that influenced the cognitive degree of dry eyes among nursing students were hours of using smart phones, McMonnies score, and the SPEED score. Conclusion: The results of this study indicate that interventions need to developed and applied to reduce and control the cognitive degree of dry eyes among nursing students.

Digital Still Camera Profiling for the Optimization Of Printing Process (인쇄 공정의 최적화를 위한 디지털카메라의 Profiling)

  • Cha, Jae-Young;Cho, Ga-Ram;Koo, Chul-Whoi
    • Journal of the Korean Graphic Arts Communication Society
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    • v.26 no.2
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    • pp.65-77
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    • 2008
  • The color reproduction of digital still camera does not, in general, match those of the final prints. Because color gamut of these devices is different, it is therefore necessary to take account of a way to match. The way uses the optimized profile to print an image. This paper proposed a way to create the input profile of digital still camera for standardization printing process. The results of proposed way showed that for input profiles equivalent, good results relatively. In this paper, an experiment was done where the illumination sources used as the standard illumination 5200K and illuminated at a $45^{\circ}$ angle in the best illumination efficiently. The white balance was in mode 'custom': aperture F11, exposure time 1/60s, ISO50, focal length 80mm. The images were exported and saved as 16bit RGB tiff(AdobeRGB, sRGB, ProphotoRGB) images. To do the test, the RGB values of the RGB tiff images are processed through the ICC input profile to arrive at processed $CIEL^*a^*b^*$ values. A profiling tool such as ProfileMaker 5.0 and Monacoprofile 4.8 are used to do this. The processed CIEL*a*b* values are compared to the reference CIEL*a*b* values and these two values are used to calculate a ${\Delta}E$.

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Damage Effects Modeling by Chlorine Leaks of Chemical Plants (화학공장의 염소 누출에 의한 피해 영향 모델링)

  • Jeong, Gyeong-Sam;Baik, Eun-Sun
    • Fire Science and Engineering
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    • v.32 no.3
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    • pp.76-87
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    • 2018
  • This study describes the damage effects modeling for a quantitative prediction about the hazardous distances from pressurized chlorine saturated liquid tank, which has two-phase leakage. The heavy gas, chlorine is an accidental substance that is used as a raw material and intermediate in chemical plants. Based on the evaluation method for damage prediction and accident effects assessment models, the operating conditions were set as the standard conditions to reveal the optimal variables on an accident due to the leakage of a liquid chlorine storage vessel. A model of the atmospheric diffusion model, ALOHA (V5.4.4) developed by USEPA and NOAA, which is used for a risk assessment of Off-site Risk Assessment (ORA), was used. The Yeosu National Industrial Complex is designated as a model site, which manufactures and handles large quantities of chemical substances. Weather-related variables and process variables for each scenario need to be modelled to derive the characteristics of leakage accidents. The estimated levels of concern (LOC) were calculated based on the Gaussian diffusion model. As a result of ALOHA modeling, the hazardous distance due to chlorine diffusion increased with increasing air temperature and the wind speed decreased and the atmospheric stability was stabilized.

Oral Administration of Nonionic Water-Soluble Contrast Media to Treat Meconium Obstruction in Premature Infants: A Preliminary Study

  • Hong, Hyun Sook;Kim, Sung Shin;Park, Ga Young
    • Neonatal Medicine
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    • v.28 no.1
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    • pp.22-28
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    • 2021
  • Purpose: Meconium obstruction of prematurity (MOP) predisposes premature infants to intestinal perforation and prolonged hospitalization if not diagnosed and treated promptly. A standard contrast enema is less effective to treat infants with distal ileal obstructions because the contrast may not reach the obstructed areas. In an effort to avoid risky surgery, we administered oral contrast media to seven clinically diagnosed patients with MOP whose obstructions were not relieved via conventional sonography-guided contrast enema. We retrospectively evaluated whether oral nonionic water-soluble contrast media relieves MOP. Methods: Seven of 67 premature infants with MOP were administered oral contrast media from June 2015 to January 2019. Patients were followed-up radiographically for bowel distention and evacuation of contrast media after oral administration. We recorded radiographic improvements, meconium evacuation, time to first feeding after oral contrast media administration, maternal history, and neonatal clinical factors. Results: We evaluated five male and two female infants. The median gestational ages and body weights at birth were 27+5 weeks and 890 g, respectively. Radiography in five infants revealed multiple distended intestinal loops without air-fluid interfaces. Two infants had gasless abdomens, in which only stomach gas was visible. Oral contrast media (median, 2.5 mL) were administered at a median age of 7 days; five infants (5/7, 71.4%) responded to this treatment. The remaining two infants, who had ileal stenosis and hypoganglionosis, were surgically managed. Five infants (5/7, 71.4%) had maternal risk factors, and two (28.6%) were small for gestational age. Conclusion: Nonionic oral water-soluble contrast medium can serve as a valuable adjunct treatment in premature infants with meconium obstruction.

Initial Sizing of a Roadable PAV Considering Airfoil and Engine Types (익형과 엔진 종류를 고려한 도로주행형 PAV 초기 사이징)

  • Cha, Jae-Young;Hwang, Ho-Yon
    • Journal of Advanced Navigation Technology
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    • v.23 no.1
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    • pp.44-54
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    • 2019
  • In many countries, there are needs of new transportations to replace ground congestions due to growing number of cars. In addition, the increase in the number of cars held by economic growth will further increase traffic congestion in the future. To overcome this problem, many researches have been performed for personal air vehicle (PAV). In this study, the wing loading and the power-to-weight ratio that are major design parameters for the sizing of roadable PAVs were calculated for different kinds of airfoil and engine types. I.e., in the sizing process, the study was conducted to determine the design point using the graphs of wing loading, power-to-weight ratio, brake horse power, and fuel efficiency for the given mission profiles considering domestic environments and the FAR PART 23 which is the GA class aircraft certification standard. As a result of sizing, using diesel engine require high maximum take-off weight, wing area, and power compared to gasoline engine due to more engine weight.

Constraint Analysis for the Sizing of Roadable PAV Considering Domestic Environments (국내환경을 고려한 도로주행형 PAV 사이징을 위한 구속조건 해석)

  • Cha, Jae-Young;Hwang, Ho-Yon;Lim, Eun-Ha;Kim, Seok-Beom
    • Journal of Advanced Navigation Technology
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    • v.22 no.2
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    • pp.111-122
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    • 2018
  • At present, the ground transportation system is saturated in many countries including Korea. To overcome this problem, many researches of developing a roadable personal air vehicle (PAV) are being carried out to alleviate traffic congestion and to accomplish door-to-door mobility through three-dimensional traffic system. In this study, the thrust-to-weight ratio, the wing loading, and the power-to-weight ratio that are major design parameters for the sizing of roadable PAVs were calculated under the constraints of ground roll, climb rate, maximum cruise speed, service ceiling, stall speed. Also, in the sizing process, the study was conducted to determine the design point using the graphs of thrust-to-weight ratio, wing loading, power-to-weight ratio, and brake horse power for the mission profiles considering domestic environments and the FAR PART 23 which is the GA class aircraft certification standard.

Tissue-cultured regeneration and ecological values in major bamboo species

  • Sharma, Avinash;Manpoong, Chowlani;Gohain, Anwesha;Pandey, Himanshu;Padu, Gompi;Aku, Hage
    • Journal of Ecology and Environment
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    • v.46 no.3
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    • pp.218-242
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    • 2022
  • Background: Promising specific growth regulators are employed in the tissue cultures of various bamboo species. Specific natural hardening mixtures support the acclimatization and adaptation of bamboo under protected cultivation. Results: The growth regulators like 2, 4-Dichlorophenoxyacetic acid (2, 4-D), Naphthaleneacetic Acid (NAA), Thidiazuron (TDZ), 6-Benzylaminopurine (BAP), Kinetin, Gelrite, Benzyl Adenine (BA), Indole Butyric Acid (IBA), Coumarin, Putrescine, Gibberellic acid (GA3), Indole Acetic Acid (IAA) has been widely used for callus induction, root regeneration and imposing plant regeneration in various species of bamboo such as Bambusa spp. and Dendrocalamus spp. Different combinations of growth regulators and phytohormones have been used for regenerating some of the major bamboo species. Natural hardening materials such as cocopeat, vermicompost, perlite, cow dung, farmyard manure, compost, soil, garden soil, and humus soil have been recommended for the acclimatization and adaptation of bamboo species. Standard combinations of growth regulators and hardening mixtures have imposed tissue culture, acclimatization, and adaptation in major bamboo species. Conclusions: Bamboo contributes to soil fertility improvement and stabilization of the environment. Bamboo species are also involved in managing the biogeochemical cycle and have immense potential for carbon sequestration and human use. This paper aims to review the various growth regulators, natural mixtures, and defined media involved in regenerating major bamboo species through in vitro propagation. In addition, the ecological benefits of safeguarding the environment are also briefly discussed.

A Case Report of a Patient with Post-Traumatic Stress Disorder Using Emotion to Emotion Therapy Based on Standard Manual (표준매뉴얼 기반 오지상승위치료법을 시행한 외상후스트레스장애 환자 1례)

  • Ju Yeon Cho;Jong Min Kim;Ga Hyun Lee;Seung Woo Song;Hyun Woo Lee;Jung Hyun Choi;Hyung Won Kang
    • Journal of Oriental Neuropsychiatry
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    • v.34 no.3
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    • pp.307-317
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    • 2023
  • Objectives: To introduce the progress of treatment and improve clinical use after application of Emotion-to-Emotion Therapy (ETE Therapy) for treating Post-traumatic Stress Disorder (PTSD). Methods: A patient who was diagnosed with PTSD that occurred after violence in the family mainly complained about abdominal pain, depression, and fear. We treated the patient with ETE therapy as the main treatment. Subjective Units of Distress scale (SUDs), The Core Seven-Emotions Inventory Short Form (CSEI-s), and Mentalizing the Rooms of Mind (MRM) were evaluated before and after the treatment for assessing the clinical effect. Results: After treatment, overall clinical symptoms of the patient were alleviated. This result was supported by a decrease in SUDs. There were meaningful drops in 'Fear', 'Fright', 'Sorrow' in CSEI-s scores, consistent with the direction of 'Sa-seung-Gong (思勝恐)' used as major technique of ETE therapy. Resources and positive emotions in MRM were increased after treatment. Conclusions: ETE therapy may be effective for treating PTSD. It might play a significant role in cognitive reconstruction.

Current Status of International Standardization for Durability Test Methods in Smart Clothing and Future Challenges in Enhancing Product Reliability and Quality Control (스마트 의류의 사용환경 내구성 시험에 대한 국제 표준화 현황과 제품의 신뢰성 향상 및 품질 관리를 위한 향후 과제)

  • Siyeon Kim;Ga-Young Lim;Sukyung Kim;Junghyun Lee
    • Fashion & Textile Research Journal
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    • v.25 no.3
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    • pp.398-408
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    • 2023
  • Smart clothing products can experience a decrease in performance and reliability due to various mechanical, biological, and chemical stress factors that occur throughout their life cycle. These issues can hinder consumer acceptance of the products. This study aims to enhance the reliability of smart clothing and facilitate quality control by analyzing and identifying the current status of international standardization for smart clothing and electronic textiles (e-textiles). The focus of this analysis was on the durability test methods in the use environment. Furthermore, similar standards published by different standardization organizations for durability tests were compared in depth. The study showed that a total of 27 international standards have been developed or are currently under development. The current standardization efforts mainly aim to develop functionality and durability test methods for smart clothing and e-textile products. A detailed comparison was made between two international standards (IEC 63023-204-1:2023 and AATCC TM210:2019) specifically in relation to the washing durability test method and the electrical resistance measurement standards (BS EN 16812:2016 vs AATCC EP13-2021), before and after the environmental exposure tests. Based on this comparison, several suggestions have been made and discussed for the future revision of these international standards.