• Journal of Korean Society of Industrial and Systems Engineering
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• v.46 no.3
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• pp.231-240
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• 2023

This empirical analysis investigates the impact of consultant competency and project manager (PM) competency on business performance. Two hundred and twenty four chief executive officers and executive members at small and medium sized firms in the manufacturing sector were surveyed, yielding several outcomes. First, consultant competency positively affects consulting performance. Second, consultant competency positively affects business performance. Third, PM competency does not have a significant influence on consulting performance. Fourth, PM competency does not have a significant impact on business performance. Fifth, consulting performance does not have a significant effect on business performance. Finally, regarding the mediation effect of consulting performance on the influence of consultant competency and PM competency on business performance, consulting performance had no significant impact. Thus, expertise and insight are crucial for a consulting business to enable the growth of professional consultants. Furthermore, this study is expected to enhance the consulting performance of small and medium sized manufacturing firms by providing useful data to consultants and project managers when carrying out consulting projects.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.347-350
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• 2016

Analysis of vulnerability of the software for risk. The weakness of the software material, the importance of strengthening security in accordance with financial damage occurred is emerging. There is a potential risk factor not only from the case, the manufacturing to use the software company that appropriate to use a software business and personal risk of loss to size.In this paper due to diagnose and vulnerabilities in software, diagnosis, the curriculum and to cultivate a diagnostic guide, and security vulnerabilities in software.Proposal system for increased.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2000.06a
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• pp.219-226
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• 2000

Frictional performance of ring pack in internal engine is investigated by varying spatial dimensions of ring pack and operating speed. This investigation is performed with commercial software by Ricardo Consultant Engineers, Inc. which is now in wofdwide use in automobile industries. Among the ring performances, blow-by rate, axial ring motions and frictional behaviors of top and second rings are studies in our work.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2000.06a
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• pp.227-236
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• 2000

The secondary motion of piston greatly influences the dynamic and frictional performances of an engine. The motion is very related to the clearance, sliding velocity and skirt profile, etc. In our work, piston dynamics is analyzed with the commercial analysis software, PISDYN by Ricardo Consultant Engineers, Inc. The effects of profiles with piston pin offsets are studied regarding the secondary motion of piston and several results are compared.

• Communications for Statistical Applications and Methods
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• v.5 no.2
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• pp.353-359
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• 1998

Factorial designs with two-level factors represent the smallest factorial experiments. The system of notation and confounding and fractional factorial schemes developed for the $2^N$system are found in standard textbooks of experimental designs. Just as in the $2^N$ system, the general confounding and fractional factorial schemes are possible in $3^N,5^N$, .... , and $\rho^N$ where $\rho$ is a prime number. Hence, we have the $\rho^N$ system. In this article, the author proposes a new algorithm for constructing fractional factorial plans in the $\rho^N$ system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.5
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• pp.945-950
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• 2017

Due to the vulnerability of the software, there is a hacking attack on the country's cyber infrastructure and real financial assets. Software is an integral part of the operating system and execution system that controls and operates Internet information provision, cyber financial settlement and cyber infrastructures. Analyzing these software vulnerabilities and enhancing security will enhance the security of cyber infrastructures and enhance the security of actual life in the actual country and people. Software development security system analysis and software development Security diagnosis analysis and research for enhancing security of software vulnerability. In addition, we will develop a textbook for the training of software vulnerability diagnosis and maintenance education, develop pilot test problems, pilot test of diagnostic staff, The purpose of this study is to enhance the software security of the cyber infrastructures of national and national life by presenting curriculum and diagnosis guide to train the software vulnerability examiner.

• Journal of Information Technology Applications and Management
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• v.9 no.1
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• pp.1-26
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• 2002

ERP is the key-enabler of enterprise's informatization. Seletion of a right ERP system is one of the critical issues. Previous study shows that since a very few methodologies of selecting ERP systems are provided, most of companies have difficulty in Implementing ERP system. The purpose of this study is to analyze the characteristics of ERP system selection factors and develop the ERP evaluation methodology An empirical study is performed and shows that there are signigicant differences in ERP selection factors among ERP consultant, ERP developer, and system manager. The result shows that five factors such as general characteristics of software and supplier, technology characteristics of software and supplier, and Project management shills are significant. Based on the five factors, the evaluation methodology is developed. The methodology will help enterprises to make better decision in selecting ERP systems.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.8 no.3
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• pp.33-42
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• 2005

The bearing methods using pile of steel itself or reinforced concrete has been applying which in excavated depth was not deep. Also, the retaining wall as resisting structure to lateral force has taken weakness that the cure periods of concreted is long. Recently, with the material cost of steel, the application of cement is more increasing trend. In this study, the design methods of earth retaining and retention wall within the pre-casted concrete pile, PHC(Pretentioned spun High strength Concrete piles), was proposed which in the ground condition of excavated depth was not deep. The typical ground conditions, cohesive and non-cohesive soil, was considered as follows; soil strength as internal friction angle and UU(Undrained Unconsolidation triaxial test) strength, soil reaction and stabilization of structures. The application of design methods could be confirmed through the comparing and analyzing between measured data and utility software for the design.

• Journal of the Korean Society for Library and Information Science
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• v.27
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• pp.183-214
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• 1994

The purpose of this study is to suggest the schemes to enhance information service functions by the utilization of CD-ROM in medical school libraries. The results of the study are summarized as follows : 1. The selection and evaluation of CD-ROM database are necessary steps in the planning of a CD-ROM. Before the CD-ROM is selected, therefore, medical libraries must make a practical evaluation criteria in important order of information services environment, characteristics of hardware/software, service requirements, price and cost, etc. 2. If possible, CD-ROM MEDLINE must be suited for the information services environment. 3. In case of the popular core journals, full-text CD-ROM should be gradually purchased. 4. In order to reduce the time required from search of bibliographic informations to receipt of original articles, CD-NET system and library holding administration program must be built up and developed. And channel of information search and order/receipt of original article should be varied. 5. Search education program for medical librarians and users should be enforced, and librarians must play an important role in CD-ROM retrieval consultant and intermediator.

• Proceedings of the Korean Society of Near Infrared Spectroscopy Conference
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• 2001.06a
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• pp.1041-1041
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• 2001

Removal of variability in spectra data before the application of chemometric modeling will generally result in simpler (and presumably more robust) models. Particularly for sparsely sampled data, such as typically encountered in diode array instruments, the use of Savitzky-Golay (S-G) derivatives offers an effective method to remove effects of shifting baselines and sloping or curving apparent baselines often observed with scattering samples. The application of these convolution functions is equivalent to fitting a selected polynomial to a number of points in the spectrum, usually 5 to 25 points. The value of the polynomial evaluated at its mid-point, or its derivative, is taken as the (smoothed) spectrum or its derivative at the mid-point of the wavelength window. The process is continued for successive windows along the spectrum. The original paper, published in 1964 [1] presented these convolution functions as integers to be used as multipliers for the spectral values at equal intervals in the window, with a normalization integer to divide the sum of the products, to determine the result for each point. Steinier et al. [2] published corrections to errors in the original presentation [1], and a vector formulation for obtaining the coefficients. The actual selection of the degree of polynomial and number of points in the window determines whether closely situated bands and shoulders are resolved in the derivatives. Furthermore, the actual noise reduction in the derivatives may be estimated from the square root of the sums of the coefficients, divided by the NORM value. A simple technique to evaluate the actual convolution factors employed in the calculation by the software will be presented. It has been found that some software packages do not properly account for the sampling interval of the spectral data (Equation Ⅶ in [1]). While this is not a problem in the construction and implementation of chemometric models, it may be noticed in comparing models at differing spectral resolutions. Also, the effects on parameters of PLS models of choosing various polynomials and numbers of points in the window will be presented.