• Title/Summary/Keyword: Mechanical properly

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Pharmacists' Perception for the Current and Future Pharmaceutical Services (현재와 미래 약국서비스에 대한 약사의 인식)

  • Kang, Minku;Bang, Joon Seok
    • Korean Journal of Clinical Pharmacy
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    • 제27권4호
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    • pp.228-237
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    • 2017
  • Objective: We conducted a survey to understand the current state of pharmacy services and pharmacists' thoughts in the future of the community pharmacy setting. Methods: A questionnaire was distributed to 229 pharmacists and gathered from 95 respondents. Results: We asked to pharmacists about what the ideal pharmacy duty should be in the next 10 years at the community pharmacy setting in Korea. For this question, the respondents said drug counselling (19.4%), dispensing (13.8%), long-term care of chronic disease and healthcare education (12.8%), and OTC counselling (11.5%). When asked about how much time they were spending doing certain tasks in the pharmacy, the main tasks were dispensing (23.5%), counselling (17.1%), prescription review (10.1%), and OTC counselling (5.5%). When asked about what the most important duty of a pharmacist was, medication counselling (45.4%) was the most important task that they identified and the reasons for not being able to fulfill this role properly was time shortage (78.9%) followed by the lack of counselling spaces, up-to-date knowledges, and focus on financial gains over patient counselling. Conclusion: Korean pharmacists are mainly focusing on dispensing in their daily work. Their basic responsibilities can be easily mechanized over the next few years, but the social expectations of disease-prevention and public health promotion both in current and future can not be replaced by such mechanical measures. Therefore, pharmaceutical services in Korea should be developed in more diverse and professional ways.

An Experimental Study on Tube-Side Heat Transfer Coefficients and Friction Factors of the Enhanced Tubes Used in Regenerators of Absorption Chillers (흡수식 냉동기의 재생기에 사용되는 전열촉진관의 관 내측 열전달계수 및 마찰계수에 대한 실험적 연구)

  • Kim, Nea-Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제17권3호
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    • pp.716-723
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    • 2016
  • Enhanced tubes are used widely in the heat exchangers of absorption chillers. In regenerators, corrugated, ribbed or floral tubes are commonly used. In this study, the tube-side heat transfer coefficients and friction factors of enhanced tubes were obtained experimentally using the Wilson Plot method. The results showed that the heat transfer coefficients and the friction factors were the largest for the corrugated tube, followed by the ribbed tube. The heat transfer coefficients and friction factors of the floral tube matched those of the smooth tube within 4%, which suggests that the heat transfer and friction characteristics of the floral tube may be accounted for properly by the hydraulic diameter. The B(e+) and g(e+) were obtained from the experimental data of the corrugated and ribbed tube. The B(e+) and g(e+) of the corrugated tube matched those of the existing correlation within 20%. The present results may be used for an assessment of the heat transfer and friction characteristics of the enhanced tubes for regenerators.

A Study on the Status and Utilization of Computed Tomography Units in Pusan Area (전산화(電算化) 단층촬영기(斷層撮影機)의 보유현황(保有現況) 및 이용실태(利用實態) (부산시내(釜山市內) 병원(病院)을 중심(中心)으로))

  • Oh, Moon-Young
    • Journal of radiological science and technology
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    • 제14권1호
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    • pp.29-44
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    • 1991
  • A Study on the distribution and types of the total 40 CT units, as of 1st October 1990, in Pusan area(29 for whole body CT units, 11 for brain CT units) were carried out during the period from January 1989 to December 1989 to find out the status of operation and utilization of whole body CT units. The results were as following ; 1. As of 1st October 1990 in Pusan area, a total of 40 CT units(29 for whole body CT units, 11 for brain CT units) were set up and operated. The number of cases of CT examination performed per day per unit were appeared to be less than 5 cases among 59.5% of CT units, and 2.7% of the total units has peformed more than 16 examinations. 2. The CT units under operation occupied 93.5% of the total and 2.6% of the total units was not properly been operated due to mechanical breakdown. This results is appeared to be better than other reports. 3. The average number of scanning per week for each CT were 35 cases and the average days under operation of the unit per week were 6.7 days. Consequently, the average days under operation of units was higher than that of the other reports, but the average number of scanning was lower. 4. The cases referred from other institutes to hospitals were 6.4% of total cases. 5. As a site of scanning, the brain appeared most frequently with 71.2% of the total cases and followed by spine 12.4%, abdomen 8.5%, and thorax 3.6%, respectively. 6. Positive rate by scanning was 70.8% of total cases, and it was 98.9% with thorax, abdomen 96.3%, spine 93.1%, and brain 38.4%, respectively. According to the results of this study, it is highly recommended that the regulations and the guidelines for setting-up of such high cost medical equipments as CT units be provided in order to ensure the cost-effectiveness of the system.

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Thermal Design of MGSE Panel for Thermal Vacuum Test of Ka-band Engineering Qualification Model Payload of Communications and Broadcasting Satellite (통신방송위성 Ka-대역 기술인증모델 탑재체의 열진공시험을 위한 MGSE 패널 열설계)

  • Kim, Jeong Hun;Choe, Seong Bong;Yang, Gun Ho
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • 제31권2호
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    • pp.96-102
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    • 2003
  • The thermal design of MGSE(Mechanical Ground Support Equipment) panel is performed for thermal vacum thest of Ka-band EQM(Engineering Qualification Model) payload of communications and broadcasting satellite. The thermal environments are predicted to evaluate the performance of transponder equipments in the thermal vacum chamber. SINDA is used to verify the thermal design of the heat pipe layout. Embedded 16 heat pipes in the EQM payload developed for Ka-band trasponder equipments are designded properly. The heat fluz loaded on the external facesheet is 265W/㎡ for the hot platear function test of the traspinder equipments, and the zero heat flux for the cold plateau case. The maxium predicted heat transport capability is 2723 W-cm.

A study on chemical bonding characteristics of the interface between curved FRP panels for consecutive structural assembly (곡면 FRP 패널 부재 연속시공을 위한 연결부 화학적 접합 특성에 관한 연구)

  • Lee, Gyu-Phil;Shin, Hyu-Soung;Jung, Woo-Tai
    • Journal of Korean Tunnelling and Underground Space Association
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    • 제14권1호
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    • pp.79-91
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    • 2012
  • A curved fiber reinforced polymer (FRP) panel is produced with a certain width depending on allowances of manufacturing processes and facilities. An targeted arch-shaped structure could be built by sequential connection of series of the FRP panels. The connection manner between the FRP panels could be given by chemical treatment, mechanical treatment and hybrid method. Among those, the connection between the panels by chemical treatment is commonly adopted. Therefore, For an optimized design of the connected part between FRP pannels, a number of direct shear tests have been undertaken in terms of a number of parameters: surface treatment conditions, bonding materials, etc.. As results, surface grinding condition by sand paper or surface treatment by sand blasting appear properly acceptable methods, and epoxy and acryl resins are shown to be effective bonding materials for the purpose in this study.

Sports-related Overuse Injuries: Elbow joint (스포츠와 연관된 과사용 증후군: 주관절)

  • Oh, Jeong-Hwan;Keum, Jung-Sup;Park, Jin-Young
    • Journal of Korean Orthopaedic Sports Medicine
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    • 제7권2호
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    • pp.67-74
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    • 2008
  • Repetitive overhead throwing exerts significant mechanical stress on the elbow joint. Pitching in baseball, serving in tennis, spiking in volleyball, passing in American football and launching in javelin-throwing can all produce elbow pathology by forceful valgus stress, with medial stretching, lateral compression and posterior impingement. This stress can lead to developmental anatomic changes in the young thrower. Asymptomatic pathology in the shoulder and elbow joint is prevalent and, with overuse, can progress to disabling injury. Joint injury occurs as a result of the body's inability to properly coordinate motion segments during the pitching delivery, leading to further structural damage. The implications of acute and overuse injuries and the possibility of permanent damage should be understood by parents, coaches and the athletes. Proper understanding of the intrinsic and extrinsic risk factors that could lead to elbow injuries is thus required. Measures to prevent elbow injuries should include proper coaching, warm-up, medical expertise and protective gear. Injury prevention and rehabilitation should center on optimizing pitching mechanics, core strength, scapular control, and joint range of motion.

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A Seasonal Indoor Thermal Conditions of a Newly-launched Training Ship

  • Hwang, Kwang-Il;Shin, Dong-Keol;Lee, Jin-Uk;Lee, Sang-Il
    • Journal of Navigation and Port Research
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    • 제33권4호
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    • pp.289-294
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    • 2009
  • The living performances of crews and passengers in cabins have been less received attention, while Korea is a top leading country in ship building industry. To develop a high value added ships like 5-star cruisers, researches on the comfort and productivity in cabins should be carried out with urgent. The purpose of this study is to measure and analyze of the ship's indoor thermal conditions in spring, summer and winter, and also to compare the seasonal differences, of which conditions are supplied from and controlled by marine HVAC The temperature, humidity and air supply volume of 5 different needs of cabins on a training ship were measured through a year, which was launched at Dec. 2005 and totally 246 crews can go on board for education. The following results were obtained: (1)In the spring, the temperature in cabins was measured as $20{\sim}25^{\circ}C$ and humidity was below 30%. (2)In the summer, the temperatures was controlled at $21{\sim}27^{\circ}C$ in almost cabins and humidity was between $40{\sim}60%$ which is known as comfort conditions. (3)In the winter, temperature and humidity was maintained between $19{\sim}26^{\circ}C$, and humidity was between $10{\sim}50%$. (4)It is clear that the humidity conditions in cabins are not properly controlled at all through a year to satisfy the Comfort Standards provided by ASHRAE and/or ISO, In conclusion, humidification and dehumidification of cabins must be treated with importance for more comfort living and working environments for crews and passengers.

Evaluation Study on Wind Retrieval Methods from Single-Doppler Radar (단일 도플러 레이더를 이용한 풍속데이타 산출기법에 관한 연구)

  • Lim, Hee-Chang;Lee, Dong-In;Jang, Sang-Min
    • Journal of Environmental Science International
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    • 제18권3호
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    • pp.333-343
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    • 2009
  • This study presents the analysis of an atmospheric flow around a single-doppler radar located in a pseudo-site. The use of a doppler radar in meteorological field of wind engineering has become widespread over the last several decades, but it has generally been recognized that the single-Doppler radar yields only one single velocity component - the radial velocity($V_r$) so that some additional hypotheses or simplifications must be necessary to get proper wind forecast. Therefore, in order to get an accurate radial velocity($V_r$) in this study, the existing methods such as VAD(Velocity Azimuth Display) and VARD(Velocity Area Display) are reformulated and applied to match the previous study(Waldteufel and Corbin), which have been an important indicator for retrieving a radar velocity. The results presented in this study include the results from different assessment methods in a peudo-site of different wind fields. Unless the existing method can consider the proper decomposition of radial velocity in the real site, then authors suggest an appropriate curve-fitting to decrease the uncertainty errors by changing a grid adaptation rate or applying a weighting function with respect to the wind angle. It is concluded that provided properly formulated fitting function are used, the wind retrieval from the Doppler radar using VAD and VARD methods can be a viable tool for use in wind engineering problems searching for the wind resources.

Structural analysis and design proposal of fine dust mask with nanofiber filter fabricated using electrospinning (전기방사 나노섬유 필터를 활용한 미세먼지 마스크의 구조 분석 및 디자인 제안)

  • Han, Sang Yun
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • 제27권4호
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    • pp.191-195
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    • 2017
  • The microstructures of nonwoven fabric with and without nanofibers used as a filter for air purification type mask were investigated using scanning electron microscope. Moreover, we proposed a new mask design which is effective in the improvement of the fine dust blocking property. When comparing to nonwoven fabrics of which an average diameter was $25{\mu}m$, the nanofibers formed by the electrospinning process had a tight mesh structure arranged irregularly with a relatively large specific surface area, which could be associated with their much smaller diameter ranging from 25 to 120 nm. Such a prominent structural feature at nanofibers led to mechanical adsorption of fine particles, resulting in enhancement of filtering behavior maintaining high permeability. In addition to the excellent performance of the mask filter, wearing the mask properly is expected to maximize the blocking property of fine dust. To meet such a requirement, a new mask design that can be closely attached to the face in order to effectively block fine dust entering the gap between the face and the mask.

Temperature Variations of Air Pocket in Type-3 Composite Vessel during Ambient Hydraulic Cycling Test (상온 수압반복시험 시 Type 3 복합재용기 내 공기층의 온도변화)

  • Cho, Sung-min;Kim, Kwang Seok;Kim, Chang Jong;Lyu, Geun-jun;Lee, Yeon-jae;Jo, Yun Seong;Lyu, Sung-Ki
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • 제14권5호
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    • pp.120-125
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    • 2015
  • This research aims to increase the reliability and reproducibility of the ambient cycling test by properly making corrections to the test procedure. The vessel (106 L) is initially filled with 70 L of water and horizontally placed on a balance. The pressure range inside the vessel varies from 2.5 to 25.9 MPa at the frequency of 6 cycles per minute. After reviewing the results, there was a temperature difference of approximately $10^{\circ}C$ between the air pocket and the water, and the upper part of the liner faced a repeated temperature change of $40^{\circ}C$. It is possible for the aluminum liner of the composite vessel to be damaged by such a sharp change in temperature. Additionally, as a result, no pass having anything to do with the purpose of the test would occur. Therefore, it is suggested that the air pocket be completely removed.