• The Journal of Korean Physical Therapy
• /
• 제16권1호
• /
• pp.1-13
• /
• 2004

Airway clearance technique are used to aid in mucus clearance in a variety of disease states. In this review I discuss airway physiology including airway mucus, action of airways, and airway resistance and review the literature and theory regarding forced expiratory technique, active cycle of breathing technique, and autogenic drainage. Also, I look at the appropriate device such as positive expiratory pressure mask(PEP mask), Flutter, and HFCWO(Vest system) which can be applied in the field of respiratory physical therapy. This study is provided as the basic resource regarding the application method of respiratory physical therapy.

• 통상정보연구
• /
• 제8권3호
• /
• pp.143-164
• /
• 2006

EDI is fast becoming the standard way of exchanging business documents, not only in this country but throughout the world. The purpose of EDI is currently being used for all the most common business transactions such as purchase orders, invoice, quotes, bill of lading, status reports, receiving advices; and also for some very specific transaction. Thus, the purpose of this study, by way of literature survey and survey research are to find the effectiveness in EDI Service of Clearance Physical. The model of the Trust Dimension and EDI Provider Loyalty in EDI Service of Clearance Physical is tested here using data from 163 samples. Based on the research model, a comprehensive set of hypotheses is formulated and a methodology for testing them is outlined. some of the hypotheses are tested empirically to demonstrate the applicability of the theoretical model. In examining the relationships of the Clearance EDI determinants factors, Trust and e-loyalty show in significantly by customs practice trust, clearance EDI, EDI provider trust and clearance EDI loyalty. but that show in not significantly by a list of names, EDI benevolence.

• 한국자동차공학회논문집
• /
• 제18권5호
• /
• pp.56-61
• /
• 2010

This paper presents dynamic clearance verification considering engine movement for vehicle engine room package and validates through physical vehicle test. Traditionally, static clearance guide has been used for engine room package, but it's only 2-dimension criteria that results in requiring unnecessary space and it's not possible to conduct engine movement with real driving conditions. Thus, the dynamic DMU considers engine movement based on 28 load cases that are Roll Data analyzed by CAE for maximum engine movement and visualizes part-to-part dynamic clearance into virtual space. The dynamic DMU enables to develop compact engine room package without unnecessary space. The result of comparison between simulation and physical test has 0.892 correlation coefficient.

• International Journal of Fluid Machinery and Systems
• /
• 제3권4호
• /
• pp.279-284
• /
• 2010

Tip clearance losses occur in every turbomachine. To estimate the losses in efficiency it is important to understand the mechanism of this secondary flow. Tip clearance losses are mainly caused by a spiral vortex formed on the suction side of the blade of a turbomachine, which induces a drag and also has an influence on the incident flow of the blades. In this paper a physical based scaling method is developed out of an analytical ansatz for the tip clearance losses. This scaling method is validated by measurements on an axial fan with five different tip clearances.

• 대한물리치료과학회지
• /
• 제11권1호
• /
• pp.28-35
• /
• 2004

The purpose of the present study was to investigate the effectiveness of silver spike point (SSP) low frequency electrical stimulation on glomerular filtration rate (GFR), specifically, such as diuretic action in 24 hour urine and in plasma analysis from normal volunteer. The current of 1 Hz continue type (CT) of SSP low frequency electrical stimulation significantly decreased in plasma creatine from normal volunteer. However, the urine creatinine clearance (Ccr) was significantly increased by SSP low frequency electrical stimulation in normal volunteer. These results suggest that the SSP low frequency electrical stimulation, especially current of 1 Hz continue type, significantly regulates urine creatinine clearance and glomerular filtration rate from normal volunteer. Therefore, the SSP low frequency electrical stimulation is a good regulator through a diuretic action of hypertension.

• 정보학연구
• /
• 제2권1호
• /
• pp.177-190
• /
• 1999

본 연구는 물류업무의 전산화와 EDI실현를 통해 국제물류의 합리화를 적극적으로 추진하려고 하는 일본의 국제물류서비스에의 요구증대와 EDI의 중요성과 효용 그리고 EDI진전과 국제물류업의 사업전개를 우선적으로 개관하고 일본의 통관정보처리시스템의 개발과 운용내용을 항공화물통관시스템과 해상화물통관시스템의 운용과 현상을 구체적으로 분석한 다음, 1999년 말을 목표로 일본에서 추진하고 있는 신해상화물통관정보처리시스템의 개발논의와 방향을 규명하고자 한다.

• 한국가시화정보학회지
• /
• 제17권1호
• /
• pp.78-84
• /
• 2019

A gas turbine is the main equipment of a power plant that generates electricity by high-speed rotation of the rotor in a high-temperature environment. In particular, in the case of medium to large-sized gas turbines, the rotor is composed of a plurality of stages, and each component is exposed to different physical environments. Especially, in the case of the tip clearance of the turbine, it is a very important factor in the performance of the design items and the operation of the stable turbine, and a design considering the physical behavior of all major parts should be done. In this study, we will discuss the process of visualizing the physical behavior of turbine operating conditions and the method of designing tip clearance for stable operation by using commercial finite element analysis program for gas turbine assembly model and single product.

• 대한지리학회지
• /
• 제40권6호
• /
• pp.631-652
• /
• 2005

본 연구는 내륙지방에 입지한 청주세관을 사례로 통관거점을 이용한 국제물류의 지역간 결합과 지역구조를 밝히는 것을 목적으로 한다. 청주내륙통관거점의 무역은 관할 배후지에 입지한 공업의 특색을 반영한다. 화물의 발착지는 수출입지로서, 특히 일본, 중국, 미국과의 거래가 탁월하다. 청주세관 관할지역의 화물 발착지는 인천공항과 부산항의 배후지와 지향지가 되며, 수출의 경우 부산항의 지향지가 넓고, 수입의 경우는 인천공항과 부산항의 배후지가 거의 비슷하다. 청주 내륙통관거점은 신속하고 저렴한 비용의 수출입 체제를 구축하고 있는데, 개개 기업의 화물의 종류나 기업의 물류체계가 다른 특성을 나타내고 있다. 국제물류의 지역구조는 하주기업이 각각 수출입화물에 대하여 독자적인 물류체제를 구축하는데, 보세공장과 보세창고에서 수출하는 형태로 크게 나누어진다. 보세창고에 의한 형태는 다시 해외생산거점과 분업을 하는 본선인도가격제, 해외생산거점과 분업을 하는 균일배달가격제의 형태가 있다. 이러한 현상은 본사와 해외법인간의 거래, 수출기업의 화물취급 주도, 저렴한 비용의 선택, 국제적 관행 때문에 일어난다.

• 한국운동역학회지
• /
• 제21권2호
• /
• pp.131-140
• /
• 2011

The purpose of this study was to evaluate the kinematic characteristics of 5th hurdle clearance during the 100m hurdle final competition at the 2010 Colorful DaeGu pre-championship meeting. This study was also intended to provide the technical data for better performance for preparing the 2011 world championship. Lee and Jung need to change technical movement by reducing the distance of the take-off point from the hurdle and by decreasing the vertical velocity of the C.G.(center of gravity) at the takeoff. Powell's angle of the take-off leg showed bigger at the touchdown and smaller at the takeoff comparing to Lee's and Jung's. Furthermore, Powell's horizontal velocity of the C.G. was maintained at the takeoff and touchdown. So, Lee and Jung need to change angle of the take-off leg the same as Powell's. Both Lee and Jung need to increase the angle of landing leg at the touchdown. In addition to increasing the angle Jung needs to improve the knee and ankle velocity with the hurdling leg.

• 한국운동역학회지
• /
• 제28권2호
• /
• pp.79-85
• /
• 2018

Objective: This study aimed to create a strategic training method to enhance optimal athletic ability using information from 1H to 10H rhythmic units. Method: Top three world class athletes and three national winners of 110-m hurdle finals from the 2010 Daegu International Athletics Competition and 2017 National Athletics Championship, respectively, were selected. To analyze the kinematic variables, Dartfish 9.0 was used for two-dimensional analysis. Results: Regarding the interval time from the start to the finish line, the national athletes took less time during the pure acceleration phase (start to 1H) than the foreign athletes. The horizontal velocity increase was slower after 1H; the national athletes showed a lack of ability to accelerate at the interval phases. Moreover, the hurdle clearance time between phases was longer in the national athletes than in the foreign athletes and lacked consistency. Conclusion: The national athletes lacked the ability to accelerate at the transition, maximum rhythm, rhythm maintenance, and re-acceleration phases and showed a longer hurdle clearance time. If technical improvements and strategic training methods using rhythmic units are applied for hurdling motions, the national athlete's hurdling abilities, performance, and consistency could improve.