• Journal of the Korean Society of Manufacturing Process Engineers
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• v.2 no.2
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• pp.31-36
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• 2003

Base and saddle feed drive system in machine tool puts in operation for Improvement of life and endure by high frequency heat treatment. In this time, work requirement of establishment to gets by repeat experimentation. In this paper, using the finite elementary method, we predict and revision processing, and gets minimizing of deformation and reduce the progress of Grinding works. Moreover, having high frequency heat treatment, the maximum deformation genesis m the middle parts without slideway length. Take deformation Into finite element program (ANSYS) of taper process in roughing process, after having high frequency heat treatment, existed quantity of deformation can be reduced down to 80 percents.

• Proceedings of the KIEE Conference
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• 2002.11c
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• pp.613-616
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• 2002

This paper has been studied an improvement of receive sensitivity for RF module of Industrial Scientific Medical(ISM) Band. In the paper, Also this paper handles receive sensitivity progress of RF module in ISM band. how to improve receive sensitivity adds to Surface Acoustic Wave(SAW) filter, Low Noise Filter(LNA), etc and insulates receiver and transmitter. And then the circuit is inspected by the effective range test of receiver and transmitter. And this Paper was designed that micro-controler controls the part of RF by software.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1979.05a
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• pp.3.3-4
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• 1979

Since 1968, we have performed intact canal wall tympanoplasty with mastoidectomy and reported its methods and results on several occasions. We also reported ossicular reconstruction for hearing improvement after intact canal wall tympanoplasty with mastoidectomy. Many problems were noticed, so several variable operation methods were performed. This paper deals with the following: A checked up of hearing progress after ossicular reconstruction with a 93 cases out of a total 153 cases who had undergone this operation. This covered a period of January, 1973 to February, 1979 in our Department of Otolaryngology.

• Proceedings of the Korean Geotechical Society Conference
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• 1997.06c
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• pp.1.1-16
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• 1997

This lecture summarizes the progress of the development of the different ground improvement techniques in Bangkok Plain and is reviewed in relation to the extensive deep wen pumping and the resulting piezometric drawdown at deeper depths. Case records of test embankments with sand drains, sand wicks and PVD are presented to inustrate the effectiveness of different types of vertical drains with surcharge. The use of prefsbicated drain seems more superior than the other types of sand drain. Construction of test embaxlkment, criteria for PVD selection and relevant laboratory testing techniques are discussed for formulating the specif'ication. Alternative teckuuque, such in, the use of deep chemical mixing is reviewed in terms of the efficiency of cement, lime and flyash as additive. Vacuum pre-loading with surcharge and elctro- osmotic consolidation are also explored as possible tectmiques to improve the engineering properties of soft Bangkok clay.

• Proceedings of the KIEE Conference
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• 1998.07g
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• pp.2489-2491
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• 1998

The study of 3D image reconstruction re has developed along the progress of computer. Therfore Great deal of research on it have been done. 3D medical image reconstruction techniques are useful to figure out human's complex 3D structures from the set of 2D section. But 3D medical image reconstruction require a lot of calculation, it takes long time and expensive system. That gives a reason to the improvement of study on speed. In this paper. applying the interpolation to only the part which can appear as cube, I come up with a method that calculates the speed by reducing the a mount of calculation.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2010.11a
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• pp.737-738
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• 2010

This paper deals with the characteristics of the developments of liquid rocket engines in Russia. In 1960s the efforts to achieve the maximum pressure in combustion chamber and specific impulse by applying the closed cycle for liquid rocket engines were made. Lately the decreasing the cost for experimental improvement and expanding international cooperation have been in progress.

• Journal of the Korean housing association
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• v.15 no.2
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• pp.75-85
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• 2004

The purpose of this study was to make improvement plan of supplement education for multifamily housing managers. It had investigated a difficult degree of managerial work and troubles of education through questionnaires by 144 housing manager in Ulsan. Analysis methods adopted in this study were frequency, percentage, mean, one-way ANOVA by the SPSS 10.0 for windows program. The parts of evaluation tool were composed of maintenance, operating management, residential life management. The evaluation tool got contents through the documents research, present education contents and questions on the Internet. Likert summated scale(5 point) was used. The results of study showed that a difficult degree of managerial work in the residential life management was the highest. A difficult degree of maintenance work was the highest on the defect examination and decision of repair method of equipment facilities and construct frame. The degree of difficulty of the operating management was high on the homepage management through Internet and well-being progress of housing managers.

• Journal of the Korea Institute of Building Construction
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• v.3 no.3
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• pp.99-106
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• 2003

The purpose of this study is to suggest the rational plans of Information Management in the interior finishing work. The results of this study are summarized as follows; I) Analytical survey of actual construction progress of interior finishing work 2) Review of computer-based development in construction planning & information management of interior finishing work 3) Structure of interior finishing work Planning and Management Support System And the expectancies of this paper are that it can be used as efficient data for improvement of system to systematize planning and execution of interior finishing work in korea.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1251-1256
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• 2008

Urban railway system has make rapid progress ever since Seoul metro line No.1 was opened in 1974. Now, it is time to prepare system maintenance scheme and procedure that can be available even after 30 years from now. Especially, signaling system must be chosen with considering its life cycle since the system is categorized into electronic equipments. As for current signaling system, mechanical components such as relays has decreased while communication and S/W has integrated in order to implement its correct function. Therefore, it is required to establish system review and switch-over scheme with considering operational environment, maintenance system and an operator. In this paper, therefore, we analyzed various factors - technical, operational and economic - that have effect on system improvement so as to prevent making any mistakes on system improvement.

• The KIPS Transactions:PartD
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• v.14D no.1 s.111
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• pp.57-66
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• 2007

Organizations of Software development are very important issue on enhancement of a software quality as rapid progress of software industry. Especially there are diverse attempts for enhancement of test maturity of the software organization through some kinds of the test maturity model. But the current test maturity models based on CMM(Capability Maturity Model) lack part of actual testing measurement and only measure level of test maturity. To solve these problems, we suggest 'double V-model' to execute both software development process and test process simultaneously, and also 'test attributes to Maturity Levels Correlation Matrix' for evaluating level of test maturity included with definitions of test attribute and level. That is, we enhance TMM(Test Maturity Model) adopted with 'Improvement Suggestion' of TPI(Test Process Improvement) which is easy the evaluation of test maturity of organization and gives the direction of improvement to level up the test maturity for the measured organization. As a result, we will contribute to level up the test maturity of the organization.