• Korea Journal of Hospital Management
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• v.2 no.1
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• pp.114-136
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• 1997

This study was carried out to find out the effect of conflict between profession groups within medical institution. For the purpose, the questionnaire-based research was done with 605 persons consisting of specialists, residents, nurses, radiologic technicians, clinicopatholigic technicians, health record administrator, administrative employees who are working in a university hospital located in Taegu City from February 15, 1997 to March 2, 1997. The results of the study were summarized as follows. The subject profession group against which each profession group feels the most conflict in interprofession mutual recognition relation was found out as follows; Specialists(34%) against colleague specialists, residents(54.0%) against nurses, nurses(54.8%) against residents, radiologic technicians(44.0%) against residents, and clinicopathologic technicians(34.5%) against nurses, while it was shown that health record administrator felt even conflict against residents, nurses and administrative employees and administrative employees(48.1) did against nurses. Most employee group answered that medical specialists have a one-sided and individual attitude toward all affairs, while both medical specialists and administrative employees of hospital answered that nurses are one-sided. It was shown among such groups that radiologic technicians' conflict results from their thinking which mutual dependence and cooperation are lowest while individual difference is highest, clinicopatholigic technicians' conflict from the problem in mutual communication, medical specialists' conflict from difference in goals greater than other group, respectively lower than other group. The rate of vertical conflict between groups was highest for the health record administrators and then for the radiological technicians, while it was lowest for the medical specialists and then for the nurses. In addition, the rate of horizontal conflict was high for both medical specialists and nurses, but it was low for the health record administrations and clinicopathological technicians. The group with the highest job satisfaction was the medical specialists and nurses, and the group with the highest involvement in organization was the medical specialists and administrative employees. Also it was shown that both medical specialists and clinicopathological technicians show a favorable attitude toward patients. Factors having an effect on the vertical conflict included difference in goals, cooperation within group and leadership. It was shown among those factors, however, that only the leadership has an effect on all the groups evenly. The horizontal conflict was influenced by such factors as educational level, mutual dependence, difference in goals, cooperation within group, and individual difference, when an important factor was the difference in goals for all the groups. Their attitude toward patients was influenced by the vertical conflict and age, but the vertical conflict was the most significant factor for the medical specialists. In conclusion, it is required to control properly the conflict between employees as well as between profession group and to execute good leadership, so as to improve patients' satisfaction which is the key goal of hospital.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.8
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• pp.200-207
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• 2016

The automotive seat is an important component that moves in sync with the driver and is actively being developed with various new functions. The aim of this work is to develop a lightweight seat cushion extension module using a lightweight material. To this end, a structural strength analysis, vertical strength test, and durability test were conducted. In the structural analysis, the maximum value of deformation under vertical load was 4.98 mm at the front of the upper panel. The maximum stress was approximately 105 MPa, which occurred at the point of contact between the upper and lower panels of the module. The vertical strength test showed a maximum vertical deformation of 5.31 mm under a vertical load, which differed from the analysis results by approximately 6.45%. The structural safety of the product was verified by the fact that it showed no harmful deformation or damage during operation after the vertical strength test and a durability test for 20,000 cycles. Furthermore, the use of engineering plastics made it possible to reduce the weight by approximately 30% compared to existing products. The lack of damage after tests verified the passenger safety, strength, and rigidity of the product. The results are expected to be applied for improving environmental and fuel efficiency regulations and preventing accidents due to driver fatigue. The applications of this module could be expanded various types of vehicles, as well as other industries in which eco-friendly and lightweight materials are used.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.7
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• pp.3164-3169
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• 2013

In this study, a series of CFD analysis was performed in order to predict the leaving water temperature and the slope of in-situ thermal response tests of the vertical-type geothermal heat exchangers. The geothermal heat exchanger and surrounding ground formation were modeled using GAMBIT and simulation was used by utilizing FLUENT which is commercial CFD code. Comparing with the results of CFD and in-situ thermal response tests, the results of CFD was presented good agreement with $0.5^{\circ}C$ difference of Leaving Water Temperature and with 1.6% difference of the Slope.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.246-254
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• 2016

Thick-shell welding for super-sized oil storage tanks is currently done manually, which causes deterioration in quality and a lack of uniformity due to frequent rewelding. The limitations of the external environment must also be considered for manual welding. This paper describes the development of a carriage system for automatic vertical welding to increase reliability, reduce cost, and enhance productivity. The system consists of a welding platform, carriage device, and control unit, which were conceptually designed according to design specifications and manufactured with modular parts. In addition, the structure was analyzed for safety and to predict design problems in advance, and the results are reflected in reviewing the design. To evaluate the performance of the system, a tensile test, bending test, and weld time test were carried out, and the results were satisfactory. The time required for automatic weld was greatly improved by more than 87%, compared to the manual welding time.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1225-1233
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• 2008

In this paper, the 2D/3D converting algorithm is proposed. The single frame of 2D image is used fur the real-time processing of the proposed algorithm. The proposed algorithm creates a 3D image with the depth map by using the vertical position information of a object in a single frame. In order to real-time processing and improve the hardware complexity, it performs the generation of a depth map using the image sampling, the object segmentation with the luminance standardization and the boundary scan. It might be suitable to a still image and a moving image, and it can provide a good 3D effect on a image such as a long distance image, a landscape, or a panorama photo because it uses a vertical position information. The proposed algorithm can adapt a 3D effect to a image without the restrictions of the direction, velocity or scene change of an object. It has been evaluated with the visual test and the comparing to the MTD(Modified Time Difference) method using the APD(Absolute Parallax Difference).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.10
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• pp.5268-5273
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• 2013

Technique for analyzing pile installed by vibratory pile driver was developed and results of analysis obtained from variation of bias weight were studied. It can be seen from load transfer curve for dynamic skin friction that load transfer curve shift to downward as bias weight increases. Shape of load transfer curve for dynamic skin friction becomes closer to shape of coil as the bias weight decreases. Magnitudes of toe resistances were not affected by the bias weight. Shape of load transfer curve for dynamic toe resistance shows the similar tendency as the load transfer curve for skin friction exhibits. Vertical displacement increases as the bias weight increases and the shape of vertical displacement with time shows more distinct shape of wave.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.5
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• pp.929-934
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• 2009

In this work, the punchless piercing process with application of alternate high pressure has been proposed as a method to obtain pierced holes having nearly vertical wall over thin metal plates. The numerical simulation considering Lemaitre damage model has been accomplished for the proposed method. The simulated results have been compared with those by conventional one-way punch less piercing process. It has been revealed that the fractured section made by pressure alternation method shows nearly steep wall where the deviation angle from the vertical line is as small as $3.6^{\circ}$.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3426-3433
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• 2015

Three baggage allocation methods of passenger-baggage hybrid train in restricted railway transportation capacity including round conveyor system, vertical circulation system, and horizontal circulation system are presented. Loading/Unloading time is calculated based on the volume transported from Busan to Seoul via Daegu, Daejeon, and Osong with the parcel company P's logistics data. The horizontal circulation system shows less baggage volume capacity to be allocated and the maximum loading/unloading time with 434 secs. The vertical circulation system presents more loading time, but it shows best result with 408 secs. Loading/Unloading times are compared for each system and useful method is presented to improve transportation efficiency of the train.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.6
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• pp.2604-2611
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• 2013

The Personal Rapid Transit(PRT) system has been highly interested in future transportation developments due to its on-demand and optimized door-to-door transport capability. However, the major impediments to the commercialization of PRT are the high cost for construction of infrastructures as opposed to the small transport capacity and difficulty in defining the role of PRT in building a balanced transportation system. In this study, the vertical transfer device for the PRT vehicle is developed to provide more flexible and better compatible urban mobility services between means of transportation, which is expected to meet particular demands in a particular environment. This apparatus was initially designed based on the basis of vertical circulating conveyors with steel chains, which is frequently used in logistics. Its advantages are capable of the non-stop loading and reduced head-way time. Most importantly, it was intensified by the additional idea to ensure the stable and reliable transfer of the PRT vehicle fully loaded with passengers. The 1/10-scale prototype was successfully tested to demonstrate a fundamental mechanism of vertical transfer and identify unexpected user requirements prior to a real manufacturing process.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6587-6598
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• 2014

This study tested the hypothesis from the previous research issues and empirically investigated the determinants of cooperative strategy for technological innovation, using the multinomial logit model. The meaningful conclusions from this study are as follows. First, the characteristics of the company and product are not the significant determinants for cooperative strategy for technological innovation. Second, formal R&D organization characteristics are significant factors in determining the type of cooperative strategy for technological innovation. Third, the support of government is a significant determinant and if a company receives more government support, it is likely to accept public type cooperation. Fourth, the characteristics of industry are significant determinants and if a company belongs to a higher technology industry, it is likely to accept vertical type cooperation with private enterprises. This study analyzed the hypotheses raised in a variety of studies empirically. This paper presents the basis of various studies concerning technological cooperation strategies.