• Journal of the Korean Institute of Telematics and Electronics
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• v.21 no.1
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• pp.57-61
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• 1984

This paper deals with the selection of minimal test instruction set for microprocessor data processing test. This test method is based on a function description of the instructions which are obtained from the data given by the user's manual. Selecting procedure is done in 3 steps: 1) a test execution graphs are represented on the instructions which are grouped functionally, 2) the essential graphs, the eliminable graphs, the eliminable graphs, and the eligible graphs are built, 3) optimal test instruction set from the essential graphs and the eligible graphs is defined. In the case of INTEL 8048, 50 test instructions can be selected optimally from 8048 instruction repertories (96 instructions)

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.2
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• pp.187-207
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• 2012

The purpose of this study is to examine the usage and user behaviors of undergraduate students and to suggest the ways to promote the usage of e-journals. The methods used in this study are survey questionaires and interviews who are taking a general education course or Library and Information Science courses offered in D University. The study collected the data regarding usage, user behaviors, service quality, user instructions and advertisement of e-journals. In addition, the study analyzed the library website and interviewed librarians. Based on the findings, the study suggested the ways to improve the level of e-journal usage.

• Journal of the Korean Society for information Management
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• v.31 no.4
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• pp.133-159
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• 2014

The purpose of this study was to investigate the librarians' perceptions of the customized bibliographic instructions (CBI) at four-year academic libraries in Korea. The study also examined instruction librarians' perceptions of the obstacles and the factors associated with the effective adoption and delivery of the CBI. This study conducted both a survey research method and an in depth-interview. The findings of the study revealed the librarians' perception of the obstacles and facilitators in adopting and operating the CBI, which suggests useful strategies to apply in delivering the CBI in academic libraries.

• The KIPS Transactions:PartC
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• v.11C no.1
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• pp.47-54
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• 2004

The growth of computer resource and network speed has increased requests for the use of remotely located computer systems by connecting through computer networks. This phenomenon has hoisted research activities for application service provision that uses server-based remote computing paradigm. The server-based remote computing paradigm has been developed as the ASP (Application Service Provision) model, which provides remote users through application sharing protocol to application programs. Security requirement such as confidentiality, availability, integrity should be satisfied to provide ASP service using centralized computing system. Existing Telnet or FTP service for a remote computing systems have satisfied security requirement by a simple access control to files and/or data. But windows-based centralized computing system is vulnerable to confidentiality, availability, integrity where many users use the same application program installed in the same computer. In other words, the computing system needs detailed security level for each user different from others, such that only authorized user or group of users can run some specific functional commands for the program. In this paper, we propose windows based centralized computing system that sets security policies for each user for the use of instructions of the application programs, and performs access control to the instructions based on the security policies. The system monitors all user messages which are executed through graphical user interface by the users connecting to the system. Ail Instructions, i.e. messages, for the application program are now passed to authorization process that decides if an Instruction is delivered to the application program based on the pre-defined security polices. This system can be used as security clearance for each user for the shared computing resource as well as shared application programs.

• Journal of the Korea Society of Computer and Information
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• v.16 no.12
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• pp.93-102
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• 2011

This paper presents a walking guidance system for blind pedestrians in an outdoor environment using just one single camera. Unlike many existing travel-aid systems that rely on stereo-vision, the proposed system aims to get necessary information of the road environment by using just single camera fixed at the belly of the user. To achieve this goal, a top-view image of the road is used, on which obstacles are detected by first extracting local extreme points and then verified by the polar edge histogram. Meanwhile, user motion is estimated by using optical flow in an area close to the user. Based on these information extracted from image domain, an audio message generation scheme is proposed to deliver guidance instructions via synthetic voice to the blind user. Experiments with several sidewalk video-clips show that the proposed walking guidance system is able to provide useful guidance instructions under certain sidewalk environments.

• Journal of the Korean Society for Library and Information Science
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• v.41 no.2
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• pp.387-412
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• 2007

Recently, countries have recognized the significant to instruct the information literacy to library users so that they can positively and actively use the information. However, among the courses of library and information science in the colleges of South Korea which educate the potential librarians, few courses have the objectives to make the students obtain the abilities to teach the information literacy in the future. Since this lack of appropriate educations is reflected on the fields of library, the librarians have many difficulties in preparing for and performing user instructions. As an alternative solution for this problem, this study suggests opening a course, information user instructions, in the curriculum of library and information science of the colleges in South Korea and concretely demonstrated the curricular model. Also the course syllabus displays when this course would open.

• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.6
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• pp.124-132
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• 1985

The functional testing of microprocessor comes to be time - consuming task with the progress of technology of LSl/VLSl . In this paper, we present an efficient method to test instruction decoding function of MC 68000 that is the reason of complicated functional testing. This method is based on the analysis of operation word that is instruction dccoding information available to user with microprocessor's manual. Thc instruction is partitioned into representative instructions and party instructions. Then 332 minimum test instruction pairs are chosen from 69 basic instructions for detecting of instruction decoding function faults and test procedure for these is discussed.

• Journal of Korean Institute of Industrial Engineers
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• v.20 no.1
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• pp.71-85
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• 1994

Overhead cranes which carry heavy items in construction or production areas consist of structure and electric modules. More than 80% of breakdowns bring out of the electric module. As operators do not know all about cranes, it sometimes takes much time to repair the cranes. In order to resolve this problem, the expert system which can diagnose causes of faults and give instructions for repair to operators, has been developed. The scope of the paper is limited to the electric module. First of all, analyzing symptoms and causes, we have developed a rule base with the expert system shell, EXSYS. Furthermore, for the facility maintenance including repair instructions against the causes, the instruction data base was developed with FOXPRO. On the other hand, for the help of user's understanding the fault causes, the graphic animation module which shows malfunctioning component ports or motions in 3D was developed with the graphic software, TOPAS VGA.

• Journal of the Korean Society for information Management
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• v.31 no.2
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• pp.99-119
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• 2014

The purpose of this study was to investigate the current practices of the customized bibliographic instructions (CBI) at four-year academic libraries in Korea. Among the entire 206 academic libraries, a total of 149 libraries participated in the survey. Study result shows that the libraries providing CBI was 63.1%. The findings of the study revealed the overall picture of the CBI operated in Korean academic libraries. The findings of the study suggested useful strategies to apply in adopting and operating the CBI in academic libraries in Korea.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.571-578
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• 2017

In order to approach information system through smart device and pc, user has to authenticate him or herself via user authentication. At that time when user tries reaching the system, well-used user authentication technologies are ID/PW base, OTP, certificate, security card, fingerprint, etc. The ID/PWbased method is familiar to users, however, it is vulnerable to brute force cracking, keylogging, dictionary attack. so as to protect these attacks, user has to change the passwords periodically as per password combination instructions. In this paper, we designed and implemented a user authentication system using smartphone's USIM without using password while enhancing security than existing ID / PW based authentication technology.