This study was carried out to verify the effect of increasing the ambient temperature around apple trees by directly blowing warm-air under the slender spindle apple training system using an agricultural warm-air blower and ducts used in plastic house cultivation to develop late frost damage reduction technology during the blooming season. The temperature increase effect around apple trees owing to the operating warm-air blowing ducts was most evident at a height of 30 cm from the ground surface. At this height, the branch ducts made of Oxford fabric and Solartex showed a raised ambient temperature of about 2.6oC and 1.1oC, respectively. However, the temperature rising effect at a height of 130 cm and 230 cm from the ground surface owing to the operating warm-air blowing ducts was not distinct compared to that in the control. The effect of raising ambient temperature around apple trees through the operation of warm-air blowing ducts was found to be greater as the ambient temperature did not severely drop below the freezing temperature. Damage to the central flower in the apple inflorescence at the pink stage was significantly reduced in the warm-air blowing ducts made of Oxford fabric (42.8%) compared to that in the control (73.2%). However, the damage to other flowers except the central one was not significant compared to that in the control. The fruiting rate of the central and other flowers in the apple inflorescence depending on the operating warm-air blowing ducts was significantly increased compared to that in the control. The fruiting rates of central and other flowers depending on the ducts materials, such as Oxford fabric, and Solartex, and that of the control were 38.3%/82.7%, 31.4%/82.7%, and 0.5%/61.1%, respectively. In conclusion, in the case of open-field apple orchards, if the warm-air blowing duct is installed close to the laterals where frost damage mainly occurs in the slender- spindle dense cultivation system, the damage caused by late frost in the vicinity of blooming time can be reduced to some extent.
This study aimed to identify milling characteristics depending on the number of a cutting roller’s air vent and blowing velocity to remove rice bran by the cutting type milling machine which can minimize the conventional milling process. The level of whiteness was found to be 38±0.5 in all the conditions, showing consistent whiteness levels during milling. The rice temperatures turned out to be 15.4 and 14.6oC which were rather low-level under the conditions of the cutting roller with 3 vents and blowing velocities of 35 and 40 m/s respectively. Cracked rice ratio was 2.13% under the conditions of the cutting roller with 3 vents and a blowing velocity of 35 m/s. Broken rice ratio showed the range of 0.762-0.869%, reflecting a low level. Turbidity after milling was decreased, as blowing velocity became faster. Energy consumption for milled rice production was decreased, as blowing velocity became faster. The optimum milling condition for cutting type milling machine depending on air vent number of cutting roller and blowing velocity was found to be 3 vents and 35 m/s.
This study aimed to identify milling characteristics depending on the number of a cutting roller’s air vent and blowing velocity to remove rice bran by the cutting type milling machine which can minimize the conventional milling process. The level of whiteness was found to be 38±0.5 in all the conditions, showing consistent whiteness levels during milling. The rice temperatures turned out to be 15.4 and 14.6oC which were rather low-level under the conditions of the cutting roller with 3 vents and blowing velocities of 35 and 40 m/s respectively. Cracked rice ratio was 2.13% under the conditions of the cutting roller with 3 vents and a blowing velocity of 35 m/s. Broken rice ratio showed the range of 0.762-0.869%, reflecting a low level. Turbidity after milling was decreased, as blowing velocity became faster. Energy consumption for milled rice production was decreased, as blowing velocity became faster. The optimum milling condition for cutting type milling machine depending on air vent number of cutting roller and blowing velocity was found to be 3 vents and 35 m/s.
선박에서 제어판을 가지는 목적은 선박의 운동을 제어하는데 있다. 제어판은 단동타의 형태일수도 있고 고정된 부분과 이동하는 부분의 조합에 의해 구성될 수도 있다. 이러한 제어판은 그 고유의 목적에 맞도록 역할을 수행하는 기능을 가지며, 유체와 상대적인 운동과 원초적인 기능에 의해 조정력을 증가시키는 것이다. 이러한 힘과 모멘트는 영각의 변화와 회전에 의해서 생성되고 선박의 조종성능을 결정한다. 본 논문에서는 플랩러더와 물분사러더의 2차원 유동특성을 회류수조에서 PIV기법을 이용하여 각각 계측하였다. 모델시험은 플랩러더와 물분사러더를 NACA0012의 영각과 플랩각을 변화시키면서 수행하였다. 2프레임 입자추적기법은 유동장에서 속도분포를 득하는데 이용되었다. 전체실험에서 레이놀즈수 Re≒3.0×10⁴를 적용하였으며 상호비교를 통해 계측된 결과값을 비교평가하였다.
In this study, a hot water pipe and a blowing fan were combined for developing zone heating technology for cherry tomato. The concept of this system was that hot air was firstly made by hot water pipe in one layer plastic duct and then a blowing fan made the hot air formed in a duct discharge through a duct hole to a shoot apex or a flower cluster which was temperature-sensitive part of cherry tomato. This system mainly consisted of hot water boiler, thermal tank, heat radiation plastic duct with the function of moving up and down electrically depending on the height of shoot apex. Developed system was applied to the cherry tomato greenhouse located in Jangam Chungcheongnamdo from Dec. 28, 2015 to Feb. 16, 2016 and compared with conventional entire space heating system of cherry tomato greenhouse and looked into cumulative yield for the estimate of growing state and energy saving rate from the conventional consumed energy. The result showed that cumulative yield was 3% higher and consumed energy was 32% lower than those of control greenhouse. The average temperature of shoot apex zone was 0.4~1.1℃ higher and the average relative humidity of shoot apex zone was 2,2~2.3% lower than those of entire space during night time in a shoot apex zone heating greenhouse and the average temperature of shoot apex zone was 0.7~1.4℃ lower and the relative humidity of shoot apex zone was 2.9~8.3% higher than those of entire space during night time in a entire space heating greenhouse.
The purpose of this study compared the ability of feedback breathing training (FBT) and balloon blowing training to enhance the breathing of elderly people. The subjects were randomly and evenly divided into a feedback breathing training group (FBTG) and a balloon blowing training group (BBTG). Each group trained 3 times a week for 4 weeks, with the training suspended during the last 2 weeks. Pulmonary function measurements were obtained before the test and 2, 4 and 6 weeks after the test: forced vital capacity (FVC), forced expiratory volume at one second (FEV1), FEV1/FVC, peak expiratory flow (PEF) and vital capacity (VC). A repeatedmeasures ANOVA was conducted for the significance test. The FBT resulted in a significant increase in the FVC, FEV1/FVC, PEF, and VC of the elderly smokers after 4 weeks and a significant decrease in the FVC, FEV1/FVC, and PEF after 6 weeks. The BBT resulted in a significant increase in the FVC, FEV1, FEV1/FVC, PEF, and VC of the elderly smokers after 4 weeks and a significant decrease in the FVC, FEV1/FVC, and PEF after 6 weeks. In conclusion, An at home breathing rehabilitation program, in addition to balloon blowing, could increase the breathing performance of elderly people.
When scanning PET/CT, dose not unwrinkle gastric folds can be difficult to diagnose gastric cancer. In this study, we use an blowing agent to evaluate the extension the stomach and usefulness of it. The study enrolled 30 patients who patient with uptake in stomach between January and February 2013. Stomach extension was described as the vertical length of the Water drink group was 61.7±9.7 mm, horizontal length was 102.5±17.6 mm and the vertical length of the Blowing agent group was 74.1±10.7 mm, horizontal length was 101.5±14.8 mm in transverse section. Stomach extension was described as the vertical length of the Water drink group was 109.3±18.8 mm, horizontal length was 62.7±18.4 mm and the vertical length of the Blowing agent group was 123.1±23.1 mm, horizontal length was 87.6±14.9 mm in coronal section. Water drink group SUV decreased 35% and Blowing agent group SUV decreased 56%. Blowing agent group extension was similar or superior than water drink group. Therefore, when using a blowing agent will be able to help clinical.
When scanning PET/CT, dose not unwrinkle gastric folds can be difficult to diagnose gastric cancer. In this study, we use an blowing agent to evaluate the extension the stomach and usefulness of it. The record of 30 patients with local or total uptake of stomach between January and February 2013. Stomach extension was described as the vertical length of the Water drink group was 61.7±9.7 mm, horizontal length was 102.5±17.6 mm, the vertical length of the Blowing agent group was 74.1±10.7 mm, horizontal length was 101.5±14.8 mm in transverse section. Stomach extension was described as the vertical length of the Water drink group was 109.3±18.8 mm, horizontal length was 62.7±18.4 mm, the vertical length of the Blowing agent group was 123.1±23.1 mm, horizontal length was 87.6±14.9 mm in coronal section. SUV results in decrease 35% for water drink group, decrease 56% for blowing agent. When the use blowing agent group extension of stomach was similar or superior than water drink group. Therefore, when using a blowing agent will be able to help clinical.
오늘날의 기업경영에서 윤리경영의 실천은 기업의 사회적 정당성을 획득하는 기반이 되기 때문에 기업의 역할이나 활동은 사회로부터 수용되어야만 기업이 생존하고 발전할 수 있는 기반이 마련될 수 있다. 본 연구는 조직구성원의 윤리경영에 대한 인식수준이 윤리경영 활성화의 전제가 되고 있는 조직구성원의 내부고발 의지에, 그리고 고객의 윤리경영 실천에 대한 지각수준이 윤리경영실천의 주요개념이라 할 수있는 기업이미지에 미치는 영향을 살펴보고, 조직구성원의 내부고발 의
The electrical properties of a laminated SMD type PTC thermistor for microcircuit protection were investigated as a function of polymer blowing agent addition. Green ceramics for multilayered BaTiO3-based PTCRs were formed by doctor blade method of barium titanate powders; we successfully laminated the sintered ceramic chips to obtain 10 layer chip PTCRs with PTC effect. The sintered density increases with increasing sintering temperature. The electrical properties of the sintered samples were strongly dependent on the calcination and addition of a polymer blowing agent. When BaTiO3 powders containing 0.2 mol% of Y2O3 were calcined at 1000˚C for 2 hrs, the resistivity jump was of 1-2 orders of magnitude. The resistivity at room temperature increases according to the polymer blowing agent addition. Also, the sample using the calcined powder showed a lower resistivity than that of the sample prepared using powders without calcinations. With an increase in the OBSH, the magnitude of the resistivity jumped as a function of the temperature increase. The resistivity of the sintered bodies after the addition of 0.5 wt% polymer blowing agent at 1290˚C for 2 h was shown to be about 8.5Ω·cm; the jump order of the sintered bodies was shown to be on the order of 102.
선박의 연돌에서 배출되는 배기가스는 해상조건과 선박에 미치는 풍속 등 외부 환경조건이나 항행속도에 따라 배기의 확산조건이 달라지며 구조물의 형상에 따라 역류하는 경우도 발생되게 된다. 이 연구에서는 실선을 1:400로 축소한 모델을 사용하여 거주구 주위의 유동특 성을 PIV기법을 통하여 계측하였다.
Ondol, Korean traditional heating system, has widely been used due to high thermal efficency based on its character of thermal dynamics. it has been also well known Ondol has improved real indoor thermal comfort compared to the other heating systems. Recently, a lot of numerical studies using CFD(Computational Fluid Dynamics) in order to understand interal thermal and flow field has been corned out. In present study, we find out the variation of temporal temperature in floor of traditional Goodie between Jul-Gorae and Doidon-Gorae, we have performed numerical analysis. According to flow rate streams, Weet-mok's temperature in a Doidon-Gorae is 7 t:: higher than Jul-Gorae 's. This asymmetry part has an influence on decreasing a standard deviation of the temperature.
본 연구에서는 연질 폴리우레탄 발포제 제조에서 여러 발포제와 내부온도, 기계적 물성과의 관계에 대해서 연구, 조사하였다. 발포제로는 물을 주발포제로 하여 보조발포제는 CFC-11(trichlorofluoromethane), HCFC-114b(dichlorofluoroethane), dichloromethane, n-pentane, iso-pentane, cyclopentane을 사용하였다. 기계적 물성을 측정하기 위하여 연질 폴리우레탄 발포제의 밀도가 0.015±0.002g/cm3와 0.024±0.002g/cm3인 두 종류의 발포제를 제조하였다. 연질 폴리우레탄의 발포제의 제조시 발포제별로 내부온도를 측정하였으며, 48시간 경과 후 밀도, 인장강도, 신장율, 인열강도, 압축강도, 압축영구변형률을 측정하였다. 연구 결과 dichloromethane과 cyclopentane이 보조발포제로 가장 적합하였다.
This paper aims to synthesize and identified several constraints of the research literature about whistleblowing and its impact on the organizations from the human resource and organizational behavior point of view. The importance of study concerning whistleblowing is an important trend in this today fraudulent world, however to our knowledge an integrative review in this sense is limited. By looking at the impact of whistleblowing act in collectivist culture, especially from the Asian perspective would give an impact to the development of the studies in the future. This review using an integrative review with the distribution of databases including Sciencedirect, EBSCO, JSTOR and soon using several terms including whistleblowing and collectivist of research published during 2003 to 2018. Thirty five papers were identified, analyzed, and capturing data of research located in several Asian countries such as China, India, Indonesia, Malaysia, South Korea, Thailand and Turkey. The findings of this review reveals that despite a positive trend of whistleblowing research in collectivist culture, the importance to increase human resource and organizational behavior aspects also lead to positive ethic climate in organization. Human resource and organizational behavior aspects to be found have a significance role in creating ethical culture in the organization.
The purpose of this study is to uncover the climatological characteristics of Yangganjipung, a strong local wind blowing in Yeongdong region, Korea, which has recently attracted attention as an exacerbation factor of wildland fire spread. Analyses of 20-year (2000-2019) surface climate data observed by the Korea Meteorological Administration demonstrate that strong westerly winds exceeding 20 m/s (25m/s in mountainous areas) more frequently occur in the northeastern coastal region (between Yangyang and Goseong) of Gangwon province rather than the southeastern coastal region, evidencing the existence of Yangganjipung. The intensification of Yangganjipung may be associated with the convergence of strong westerly winds along a southwest-northeast directional tectolinement connected to the western flank of the Taebaek Mountain Range. It is also notable that Yangganjipung tends to occur seasonally between late fall and late spring and diurnally between afternoon and nighttime hours. Examinations of the composited maps of NCEP-NCAR reanalysis data for multiple cases reveal that the formation of a low pressure anomaly core around northern East Sea provides the favorable condition for long-lasting, intense Yangganjipung occurrences. These results are expected to be used as the basic data for establishing a gusty wind warning system to prevent regional-scale climate disasters associated with Yangganjipung such as large-scale forest fires in the eastern coast of the Korean Peninsula.
Hydrochlorofluorocarbon (HCFC) is an ozone-depleting substance that is subject to environmental regulations based on the Montreal Protocol, and in Republic of Korea, which is regarded as a developing country, its use will be restricted in phase starting in 2013 until finally being prohibited in 2030. HCFC is regulated based on the Tokyo Protocol, HCFC is a regulated construction material for carbon dioxide reduction with GWP of 1,700 ~ 2,400 times that of CO2, with a GWP of 1. KS M 3808 than in the reference indicated in the C5 (15 : 15 : 20 : 50%) and C9 (20 : 10 : 20 : 50%) 0.33 mm 0.31 mm Cell size is shown in the analysis, etc. The compressive strength of the insulation, foaming agent mixing ratio according bending failure load, the thermal conductivity (initial and long-term), moisture permeability coefficient, combustible results, showed superior.
Hydrochlorofluorocarbon (HCFC) is an ozone-depleting substance that is subject to environmental regulations based onthe Montreal Protocol, and in Republic of Korea, which is regarded as a developing country, its use will be restricted inphase starting in 2013 until finally being prohibited in 2030. HCFC is regulated Based on the Tokyo Protocol, HCFC isa regulated construction material for carbon dioxide reduction with GWP of 1,700~2,400 times that of CO2, with a GWPof 1. Using the CO2 in the heat insulating material in the extrusion process conditions are the first extruder, the polystyreneresin (melting point) and the blowing agent (CO2:Ethanol:HCFC) as interval (Mixing zone) which is the combinedpressure 11.0MPa, temperature 200oC, second within the extruder discharge pressure 6.5 MPa, and determines that it isdesirable to set the temperature of 115oC, the blowing agent mixing ratio (CO2:Ethanol:HCFC), taking into account thestability of the thermal conductivity of 30:20:50%, 25:25:50% is expected to be utilized in the foaming agent.