• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.1073-1074
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• 2007

The Analysis on stopping trouble for Excitation System The excitation system must be stopped stably on generator's stopping. Therefore through studying on Excitation Stopping scheme, and problems which might happen when stopping, we would like to enhance the stability of generator and control system.

• Journal of Ginseng Research
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• v.34 no.1
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• pp.47-50
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• 2010

The common DNA extraction methods are indispensable for genotyping by molecular marker analysis. However, genotyping a large number of plants is painstaking. A modified 'NaOH-Tris' method used in this study reduces the extraction time while keeping the cost low and avoiding the use of hazardous chemicals. The endpoint analysis by realtime PCR tends to be fast and effective for the development of SNP markers linked to the 'Chunpoong' cultivar of Panax ginseng. The 'Chunpoong' marker was developed by a major latex-like protein gene sequence. From our results, we suggest that this method is successful in distinguishing 'Chunpoong' from a large number of ginseng cultivars.

• ETRI Journal
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• v.43 no.2
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• pp.232-245
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• 2021

As wireless communication continues to develop in limited frequency resource environments, it is becoming important to identify the state of spectrum utilization and predict the amount needed in future. It is essential to collect reliable information for data analysis. This paper introduces a platform that enables the gathering of the scheduling information of a long-term evolution (LTE) cellular system without connecting to the network. A typical LTE terminal can confirm its assigned resource information using the configuration parameters delivered from a network. However, our platform receives and captures only the LTE signal over the air and then enables the estimation of the data relevant to scheduling for all terminals within an LTE cell. After extracting the control channel signal without loss from all LTE subframes, it detects valid downlink control information using the proposed algorithm, which is based on the error vector magnitude of depatterned symbols. We verify the reliability of the developed platform by comparing it with real data from mobile phones and service operators. The average difference in resource block utilization is only 0.28%.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.419-422
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• 2004

This paper was carried out desertification area change detection from 1980s to 2000s per unit decade using by multitemporal satellite images (Landsat MSS, TM, ETM+). This study aims to use Spectral Mixture Analysis (SMA) to identify and classify study area. Endmembers is selected bare soil, green vegetation (GV), water body using by Minimum Noise Fraction (MNF). Endmembers used to generate increase and decrease images respective from 1980s to 1990s and from 1990s to 2000s. From the analysis of multitemporal change detection for three periods, it was apparent that the area of bare soil increased significantly, with simultaneous decrease of GV and water body. The multitemporal fraction images can be effectively used for change detection. Though there is no field survey dataset, SMA is reliable result of change detection in desertification in China.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.21 no.2
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• pp.129-143
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• 2010

There is a recognition that traditional resource sharing methods such as interlibrary lending and document delivery are now inadequate to meet user needs in the increasingly networked environment. The current study identifies barriers to resource sharing and provides analysis of stakeholders engaged in resource sharing. Focused interviews with six professional librarians were also carried out to seek out deeper understanding of perceptions of barriers among librarians. Results show that the size of the library was not necessarily result in active resource sharing. There was a wide gap among librarians in terms of their attitudinal and organizational orientations towards resource sharing. Barriers specifically identified in the study include the narrowly defined notion among librarians of what constitutes research and the untested fear of swamping where there is an imbalance of collections. Overall, while resource sharing is recognized as an integral part of library services, it seriously lacks funding and staff. The study recommends earnest efforts to build librarians' community to invigorate resource sharing among libraries.

• Journal of Microbiology and Biotechnology
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• v.16 no.12
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• pp.1882-1889
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• 2006

A 16S rDNA clone library was generated to investigate the bacterial diversity in intertidal sediment from the coast of the Yellow Sea, P. R. China. A total of 102 clones were sequenced and grouped into 73 OTUs using a phylogenetic approach. The sequenced clones fell into 11 bacterial lineages: Proteobacteria, Bacteroidetes, Planctomycetes, Chloroflexi, Acidobacteria, Actinobacteria, Firmicutes, Spirochaetes, and candidate divisions of BRCl, OP3, and OP1l. Based on a phylogenetic analysis of these bacteria, together with the ten most closely related sequences deposited in the GenBank, it was concluded that intertidal bacteria are most likely derived from marine bacteria with a remarkable diversity, and some are particularly abundant in intertidal sediment.

• Journal of Family Resource Management and Policy Review
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• v.20 no.2
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• pp.119-140
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• 2016

This study objectively analyzes the understanding of changes in North Koreans' home lives and the differences between the home life cultures of South and North Korea. A comparative analysis was conducted of terms related to consumer and family resource management to determine language differences and create a mutual understanding of social convergence unification. First, the analysis revealed that the North Korean language is not developed in certain areas, such as consumer welfare or consumer patterns related to resolving issues or complaints connected to consumptive lifestyles. In financial management, there were terms that referred to the collapsed North Korean economic conditions after the fall of the Soviet Union in 1991 and the North Korean famine. Second, terms reflecting North Korea's social, political, and economic structures were discovered, and it was found that South and North Korean languages differed from each other with regard to terms about kinship, sports, and art.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.18 no.5
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• pp.1238-1259
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• 2024

Previous studies on joint optimization of computation offloading and service caching policies in Mobile Edge Computing (MEC) have often neglected the impact of dependency-aware subtasks, edge server resource constraints, and multiple users on policy formulation. To remedy this deficiency, this paper proposes a many-objective joint optimization dependency-aware task offloading and service caching model (MaJDTOSC). MaJDTOSC considers the impact of dependencies between subtasks on the joint optimization problem of task offloading and service caching in multi-user, resource-constrained MEC scenarios, and takes the task completion time, energy consumption, subtask hit rate, load variability, and storage resource utilization as optimization objectives. Meanwhile, in order to better solve MaJDTOSC, a many-objective evolutionary algorithm TSMSNSGAIII based on a three-stage mating selection strategy is proposed. Simulation results show that TSMSNSGAIII exhibits an excellent and stable performance in solving MaJDTOSC with different number of users setting and can converge faster. Therefore, it is believed that TSMSNSGAIII can provide appropriate sub-task offloading and service caching strategies in multi-user and resource-constrained MEC scenarios, which can greatly improve the system offloading efficiency and enhance the user experience.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.140.3-140
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• 2001

This paper analyzes a blocking that is due to shared resource in multiprocessor system. A proposed analysis for shared resource suggests a scalable and amendable scheduling method about task allocation. An equation of shared resource blocking is proposed by a throughput at common bus and a ratio of throughput during time period, it is included a parameter of tasks scheduling. Using this equation, a new guideline for task allocation of multiprocessor is presented. Finally, in proposed system a model simulations for the proposed blocking model is given by a deterministic ratio of shared resource.

• Korean Security Journal
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• no.54
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• pp.181-202
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• 2018

This study was conducted to investigate the effect of strategic human resource management on job stress and occupational commitment of security workers. A sample of 188 persons was extracted using the SPSS 18.0 program as a significant sampling method for the security worker. Frequency analysis, correlation analysis, and multiple regression analysis were conducted according to the purpose of the data, and the following conclusions were drawn. First, strategic human resource management has a significant effect on job stress. Second, strategic human resource management has a significant impact on occupation. Third, job stress had a significant effect on occupation commitment. That is, two factors of strategic human resource management and job stress play a decisive role in occupation commitment, and job stress plays an important role as a parameter. In conclusion, if we select the factors of strategic human resource management needed for each organization and develop new methods and competitiveness, it will be very helpful for qualitative growth of security industry.