• KSII Transactions on Internet and Information Systems (TIIS)
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• v.7 no.11
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• pp.2893-2912
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• 2013

The design of geometrically invariant watermarking is one of the most challenging work in digital image watermarking research area. To achieve the robustness to geometrical attacks, the inherent characteristic of an image is usually used. In this paper, a geometrically invariant image watermarking scheme using connected objects and gravity center is proposed. First, the gray-scale image is converted into the binary one, and the connected objects according to the connectedness of binary image are obtained, then the coordinates of these connected objects are mapped to the gray-scale image, and the gravity centers of those bigger objects are chosen as the feature points for watermark embedding. After that, the line between each gravity center and the center of the whole image is rotated an angle to form a sector, and finally the same version of watermark is embedded into these sectors. Because the image connectedness is topologically invariant to geometrical attacks such as scaling and rotation, and the gravity center of the connected object as feature points is very stable, the watermark synchronization is realized successfully under the geometrical distortion. The proposed scheme can extract the watermark information without using the original image or template. The simulation results show the proposed scheme has a good invisibility for watermarking application, and stronger robustness than previous feature-based watermarking schemes against geometrical attacks such as rotation, scaling and cropping, and can also resist common image processing operations including JPEG compression, adding noise, median filtering, and histogram equalization, etc.

• Journal of Broadcast Engineering
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• v.19 no.6
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• pp.907-915
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• 2014

This paper is to assess the influence of business field and qualification acquisition on job-getting and working business by conducting survey against the qualification holders of the national technology in the area of ICT industry. The result shows that respondents working in the ICT industry are 58.7% of samples. Their working business are shown as manufacturing area of broadcasting & telecommunication, telecommunication service, science/technology service, and media service. As for the value of qualification, the current working business area of respondents is more influential factor than the types of qualification. Workers of media service industry recognize the qualifications more useful in job-getting and job performance.

• Journal of the Korean Wood Science and Technology
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• v.10 no.3
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• pp.194-195
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• 1982

Recommendaton: These are the highlights of the findings of the Timber Consumption Survey carried out by the Project in 1966, and covering consumption for the period from 1961 to 1965. The survey was oriented towards consumption for structural, commercial and industrial purposes and existing estimates for local (village-level) consumption as fuel and the like were adopted. A full report on the survey was submitted to the Bureau of Forestry in 1966. Long-term Trends: After allowance for anticipated population increase, this ten year's increase in industrial wood consumption represents a gain of about 30% in per capita consumption (from 0.0913 cu.m. per capita to 0.118 cu.m. per capita). This is only about half the expected general economic growth of about 75% (7% per annum). It is therefore likely (a) that the 1975 estimate is conservative, (b) that the consumption demand beyond 1975 may be expected to build up at a greatly increased rate. Estimated income elasticity coefficients are high, and with expected ir,creases in prosperity and population, the consumption is expected to rise to 10 million cu. meters by the year 2,000. Consumption Pattern: The breakdown of industrial consumption (1965) is given in Table 4-2, showing sawnwood consumption as the most important in 1965. The upward trend in all sectors over the 1961-65 period is expected to continue. The general consumption pattern is expected to change through 1975 with a sharp increase in the relative importance of pulp products (to 30% of total consumption) offset by declining relative importance of sawlogs. The following recommendations follow from the study: (i) Industrial forests. - A programme of establishment of consolidated industrial forests should be initiated as a matter of urgency. (ii) Fuelwood forests - Properly sited, protected and managed fuelwood forest, worked on a 20-year rotation, should be established as a nation wide basis. (iii) Hardwood utilization - Detailed investigations are required into the use of indigenous hardwoods for the pulp, particle board and hardboard industries. (iv) Mining timber - Preservation treatment of all mining timber should be enforced by law. (v) Sawmills - Licencing restrictions should be enforced to reduce the number of small, inefficient sawmills. b. Extension work should be undertaken bv government to improve sawmilling practices.

• International Commerce and Information Review
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• v.12 no.1
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• pp.3-33
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• 2010

Paperless trade is a new trade paradigm that has innovated on traditional trade procedures, which relied on manual work in the past, and applied an IT-based e-document standard. To realize paperless trade in Korea, a lot of efforts have been made. Korea has overcome many difficulties, a lack of awareness, trials and errors, etc. at the initial introduction stage and strived to establish a stable infrastructure through the government's policy support and active cooperation with the trade business communities and related organizations. Now, Korea became a well-known leader in IT industry, especially in the paperless trade infrastructure and strategic policies. The one-stop trading system named 'uTradeHub' is operated by a paperless trade service provider, Korea Trade Network(KTNET). uTradeHub includes trade finance and settlement, customs clearance and export and import logistics, improving trading procedures and reducing related expenses. Private-Public joint efforts from Korean government and private sectors which have respectively fulfilled their role and function with market-oriented practical policies and strategies has lead Korea a world leading country in paperless trade. Moreover, Korea expended its efforts to the global areas. Korea has started to activate multi-national paperless trade alliances such as PAA(Pan-Asia e-Commerce Alliance), ASEAL(Asia Europe Alliance for Paperless Trading) as well as established the bilateral cooperative networks with China and Taiwan. The one-stop trading system, uTradeHub should keep close cooperations between nations since trade itself is implemented in a cross-border ways. In the near future, it is expected uTradeHub can achieve best results in the simplification of procedures and cost savings when an international linkage is completely established with international cooperations.

• Journal of Advanced Navigation Technology
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• v.15 no.5
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• pp.823-832
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• 2011

Recently, as the project becomes larger and the number of project increases by the information system integration in the public and financial sectors, it is necessary to have a proper plan to manage the information system project. There have been many researches about the project management, success elements and failure elements, but the research on the interrelation between project management areas leaves much to be desired. This research deduces the scope, schedule, quality, work force and risk as the project management areas from the preceding research and the questionnaire and interview with PM developers, information system builders and data processing experts. And, it analyzes the interrelation and the relative importance between management areas, classifies the progress of the management areas under plan, implementation and completion stage and presents the frame to evaluate the accomplishment of each progress.

• Journal of Labour Economics
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• v.26 no.3
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• pp.1-28
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• 2003

This article examines the employment status of older male workers in the era of industrialization, focusing on the questions of how the extent of pressure toward retirement varied across different occupations, and how it changed over time. A comparison of hazard of retirement across occupations shows that men who had better occupations in terms of economic status and work conditions were less likely to retire than were those with poorer jobs. This result tends to reject the recent view that retirement was more voluntary than forced as early as a century ago. The difficulty faced by older workers in the labor market, as measured by the relative incidence of long-term unemployment, was relatively severe among craftsmen, operatives, and salesmen. In contrast, aged farmers, professionals, managers, and proprietors appear to have fared well in the labor market. The pattern of shifts in the occupational structure that occurred between 1880 and 1940 suggests that industrialization had brought a growth of the sectors in which the pressure toward departure from employment at older ages was relatively strong.

• Proceedings of the KSRS Conference
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• v.2
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• pp.570-573
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• 2006

College GIS and remote sensing education usually consists of commercial software packages implementations in the classroom. Computer programming is quite important when college graduates work in private or public sectors relevant with GIS and remote sensing implementations. The objective of this paper was to develop a valley management system which implements GIS and remote sensing as the key components for education. The Valley Authority is entitled with water resource protection for sustainable drinking water supply of the second largest city in Taiwan. The test area consists of three different government agencies, Forest Service, EPA, and Water Resource Agency. Materials were provided by the Valley Authority in ArcGIS file format. MapObjects have made the GIS development process much easier. Remote sensing with image manipulation functions were provided by computer programming with Visual Baisc.NET and Visual C#.NET. Attributes inquiry are performed by these two computer languages as well. ArcGIS and ArcPad are also used for simple GIS manipulations of the test area. Comparison between DIY and commercial GIS can be made by college students. Functions provided by the developed valley management system depending on how many map layers have been used and what types of MapObjects components have been used. Computer programming experience is not essential but can be helpful for a college student. The whole process is a step-by-step sequence which college students can modify to depict their capability in GIS and remote sensing. The development process has gone through one semester, three hours every week in 18 weeks. College students enrolled in this class entitled with GIS showed remarkable progresses both in GIS and remote sensing.

• Korean Journal of Child Studies
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• v.31 no.1
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• pp.197-217
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• 2010

This study investigated the performance of the child care policies implemented by the former government and analyzes some changes in child care policies by the new government in Korea. The criteria for evaluating child care policies of both governments were based on suggestions gleaned from OECD policy review papers on Early Childhood Education and Care (ECEC) in 2004 and 2006. As suggested by the OECD, the input of financial investment in public sectors, universal approaches to child care, measures of quality programs, efforts for improving the work environment of child care workers and selecting effective ways of providing financial support for child care were applied in order to evaluate the child care policies in Korea. A number of policy documents and literature published by both governments from 2003-2009 were reviewed in order to evaluate and compare the former child care policies with the more recent ones. The child care policies enacted by the former Korean government were characterized as the remarkable increases in financial investment to establish a child care infrastructure for quality programs and services, and efforts to enact universal approaches to child care, policy making based on scientific data on child care. These advances were tempered by the observation that despite all these improvements, both investment and expansion in the public child care sector were far below sufficient levels. In contrast, some changes in the child care policies by the new government were criticized in terms of weakening public child care, reinforcing private child care and it's conservative financial support system.

• International Commerce and Information Review
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• v.6 no.3
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• pp.63-79
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• 2004

Peer-to-peer(P2P) has potential strength and possible factors which enable it to develop toward a new business by supplementing the limitation of the existing central server-type network. In various business sectors, various attempts have already been made to apply P2P. The computing power which was possible to be formed through peer-to-peer networking will become a powerful tools for expanding toward new business area depending the utilization methods by sector. Although the technology-centric P2P concept is a major interest now, its development direction will head toward service-centric P2P concept for satisfying desires of end-users(individual peers) for reliable contents and improving their purchasing convenience. But the solution requisites should be solved for the efficient application of P2P to business such as the establishment of and supplement for the industrial standard and legal system for P2P, the enhancement of peers recognition of P2P. Presently e-commerce using P2P is being implemented by a few enterprises locally by means of B2C. But if many enterprises enter this type of e-commerce, and the standardization of peer programmes, goods and documents is made, it will be able to be extended to B2B. Also it seems that it can be utilized in international transactions as well as in domestic transactions. So there is much room for the application of P2P to be extended further. Also there has been presented the necessity for related industries to support their work with theories and for academic studies to be made actively to set the direction of its development. It is hoped that multi-angled and in-depth studies on the utilization of P2P and various attempts to application of it to business be made on the basis of this study. For the development of P2P, continuous study and attempts are needed. The field of P2Ps application is very large and it will become a powerful tool, depending upon its application methods.

• The Journal of Korean Institute for Practical Engineering Education
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• v.2 no.1
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• pp.115-119
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• 2010

In Korea, there exist around 120 regional innovation centers(RICs) which have been established in many universities since the mid-nineties by Ministry of Knowledge Economy of Korea. These centers aim at higher competitiveness of their local industry by providing it with direct services using expensive testing or manufacturing equipment along with cooperative technology development and well trained work forces. Considering the nationwide importance of human resources development in the key industrial sectors, the RICs naturally should take part of responsibility because the most advanced equipments in each important industrial field have been invested during the last 15 years which amount over 500 million US dollars. In the present study, a brief concept for the industry-oriented human resources development program utilizing the already established RIC infrastructure is proposed.