• Journal of Communications and Networks
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• 제11권6호
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• pp.589-598
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• 2009

In wireless sensor networks, a node that reports information gathered from adjacent assets should relay packets appropriately so that its location context is kept private, and thereby helping ensure the security of the assets that are being monitored. Unfortunately, existing routing methods that counter the local eavesdropping-based tracing deal with a single asset, and most of them suffer from the packet-delivery latency as they prefer to take a separate path of many hops for each packet being sent. In this paper, we propose a routing method, greedy perimeter stateless routing-based source-location privacy with crew size w (GSLP-w), that enhances location privacy of the packet-originating node (i.e., active source) in the presence of multiple assets. GSLP-w is a hybrid method, in which the next-hop node is chosen in one of four modes, namely greedy, random, perimeter, and retreat modes. Random forwarding brings the path diversity, while greedy forwarding refrains from taking an excessively long path and leads to convergence to the destination. Perimeter routing makes detours that avoid the nodes near assets so that they cannot be located by an adversary tracing up the route path. We study the performance of GSLP-w with respect to crew size w (the number of packets being sent per path) and the number of sources. GSLP-w is compared with phantom routing-single path (PR-SP), which is a notable routing method for source-location privacy and our simulation results show that improvements from the point of the ratio of safety period and delivery latency become significant as the number of source nodes increases.

• 한국IT서비스학회지
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• 제8권4호
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• pp.103-113
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• 2009

The industry of cultural digital contents has been regarded as the main next generation industry. Recently techniques for restoring cultural assets and the multiple usage of those have been developed in our country. Using computer graphics and image processing techniques, many cultural assets have been restored. If the focus for researches and supports to cultural assets restoration grows rapidly, we will create cultural and economical added-values and get the benefit of that technology. In this paper, we introduce the techniques for restoring cultural assets focused on computer graphics and image processing techniques.

• 대한가정학회지
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• 제49권10호
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• pp.1-13
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• 2011

This paper examined how men and women differ in the attitude and behaviour of financial risk tolerance. The results showed that women were less risk seeking than men in financial risk tolerance. The results of the investment simulation indicated that men invested in higher risk assets like stock. In contrast, women prefered to invest in lower risk assets like real estate. The results of multiple regression analysis showed that if investors have the propensity to take more risk they allocated their money to higher risk assets in the simulation. This analysis also showed that the surveyed respondents invested in risky assets if they had experience in high risk investment in the past.

• 산경연구논집
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• 제12권2호
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• pp.41-52
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• 2021

Purpose: This study aims to provide implications for the government's housing supply policy by analyzing the factors that determine the type of real estate holding and household debt. This study started from the awareness that the determinants of household debt differ depending on the type of real estate holding. Research design, data and methodology: Real estate ownership type was classified and analyzed into 4 models: model 1 (1 household 1 house and self-resident), model 2 (1 household multiple real estate ownership and self-resident), model 3 (1 household 1 house and rent residence), model 4 (1 household holds a large number of real estate and rent residence). The analysis method used multiple regression analysis. The dependent variable was household total debt. As independent variables, household debt, annual gross household income, financial assets, real estate net assets, annual repayment, demographic & residential characteristics were used. Results: 1) Model 4 has the highest household debt and the highest gross income, Model 2 has the most real estate mortgage loans and real estate net asset, and Model 1 has the highest real estate mortgage payments. 2) The positive factor of common household debt determinants is real estate net assets, and the negative factor is financial assets. 3) It was the net assets of real estate that acted as a positive factor in common for the four models. In other words, the more financial assets, the less household debt. It was analyzed that the more net assets of real estate, the more household debt. The annual repayment of financial liabilities had no influence on household debt, while the annual repayment of loan liabilities and household debt had a positive relationship. Conclusions: 1) It is necessary to introduce benefits and systems that can increase the proportion of household financial asset. Specific alternatives include tax benefits and reduced fees for financial asset investment. 2) In the case where a homeless person prepares one house for one household, it is necessary to prepare various support measures according to the income level. The specific alternative is to give additional points for pre-sale or apply an interest rate cut incentive for mortgage loans.

• 한국콘텐츠학회논문지
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• 제21권1호
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• pp.284-291
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• 2021

현재 보안관제 시스템은 공격자의 공격 후 대응만을 위한 수동적인 시스템으로 운용됨에 따라 공격 발생 이후 침해사고 대응이 일반적이다. 특히, 신규 자산 추가 및 실제 서비스가 이루어지는 경우 실제 해커의 관점에서 취약점 테스트 및 사전 방어에 한계가 있다. 본 논문에서는 해킹 관련 다중 검색엔진을 활용하여 보호 자산의 사전 취약점 대응 기능을 추가한 보안관제 모델을 새롭게 제안하였다. 즉, 범용 또는 특수한 목적을 지닌 다중의 검색엔진을 이용하여 보호 대상 자산의 특수한 취약점을 사전에 점검하고, 점검결과로 나타난 자산의 취약점을 사전에 제거하도록 하였다. 그리고 실제 해커의 입장에서 인지되는 보호 자산의 객관적인 공격 취약점을 미리 점검하는 기능, IP 대역에 위치한 광범위한 시스템 관련 취약점을 사전에 발굴하여 제거하는 기능 등을 추가로 제시하였다.

• 한국사회복지학
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• 제69권2호
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• pp.247-269
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• 2017

본 연구는 한국복지패널 9차년도(2014) 자료를 사용하여 가구주의 장애여부와 삶의 만족도 사이에서 자산수준과 자아존중감의 다중매개효과를 검증하였다. 분석결과, 가구주의 장애는 삶의 만족도와 자산수준 그리고 자아존중감에 각각 부적으로 영향을 미치는 반면에, 가구주의 자산수준은 삶의 만족도에, 자아존중감에 각각 정적으로 영향을 미치는 것으로 나타났다. 그리고 가구주의 자아존중감은 삶의 만족도에 정적으로 영향을 미치는 것으로 드러났다. 또한, 가구주의 장애여부와 삶의 만족도 간의 관계에서 자산수준과 자아존중감의 부분매개효과가 검증되었다. 마지막으로 가구주의 장애여부와 삶의 만족도 사이에서 자산수준과 자아존중감의 다중 부분매개효과가 검증되었다. 본 연구는 성인 장애인 가구를 대상으로 하는 저축프로그램 설계의 개입방안을 마련하기 위한 실천적 정책적 근거를 제시하였으며, 장애인의 저하된 삶의 만족도를 향상시키는데 있어서 Sherraden의 자산효과이론과 자아존중감의 긍정적 측면을 재조명하였다는 데에 의의가 있다고 볼 수 있다.

• 가족자원경영과 정책
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• 제3권1호
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• pp.67-82
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• 1999

The purpose of this study were to examine assets investment behavior of urban households and find the factors affecting it. The data were obtained from 442 households living in Seoul. The statistical techniques used for this study included descriptive statistecs, logistic regression, multiple regression. The major findings were as follows: First, The ownership of houehold assets were affected by age, education, total income, total income, total asset, the number of income source, income stability, the financial expectations, past financial experiences and the job of houehold head. Second, amount of household assets was affected by husband’s age, education, unearned income, total asset, income stability, the expectiation of future, the past financial experiences and the job of household head. Third, ratios of household assets were affected by age, education, unearned income, family size, the number of income source and the job of household head. The findings of this study can be used by financial counseling and planning practioners and education.

• 사회복지연구
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• 제48권4호
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• pp.5-31
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• 2017

본 연구는 한국복지패널조사의 11차년도(2016) 자료를 사용하여 장애인 가구원의 가족관계만족도에 영향을 미치는 요인들의 영향력과 관련성을 살펴보고 또, 요인들 간의 경로를 파악하고자 경로분석을 통해 분석을 실시하였다. 분석결과에 의하면, 장애인 가구원의 취업여부는 자산수준, 우울감, 가족관계만족도에 직접적인 영향을 미치는 것으로 나타났으며, 그리고 자산수준은 우울감과 가족관계만족도에 직접적인 영향을 미치고 우울감 또한 가족관계만족도에 직접적인 영향을 미치는 것으로 확인되었다. 다음으로 취업여부와 우울감 사이에서 자산수준의 완전 매개효과가 나타났으며, 자산수준과 가족관계만족도 사이에서 우울감의 부분 매개효과가, 그리고 취업여부와 가족관계만족도 간의 관계에서 자산수준과 우울감의 다중 부분매개효과가 검증되었다. 본 연구는 장애인의 저하된 가족관계만족도를 향상시기 위해서 Sherraden 교수의 자산효과이론을 재조명하였으며, 무엇보다도 본 연구는 성인 장애인 가구원을 대상으로 하는 차별화된 저축 프로그램 등 자산형성 프로그램를 설계하는 데 기초자료를 제시하였다는 데에 의의가 있다.

• 한국병원경영학회지
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• 제9권2호
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• pp.102-127
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• 2004

The objective of this study is to analyze a current trend of and relating factors on profitability of the Korean Public Corporation Medical Centers(KPCMCs, hereinafter, hospitals) in Korea. There are 34 hospitals in Korea as of 2004. Among these hospitals some are red ink hospitals, others are black inks in terms of profitability. Data were collected by Korea Health Industry Development Institute(KHIDI) Statistics for Hospital Management 2000-2002 and Ministry of Health and Welfare(MOHW) financial data of public hospitals which was planned to coordinate public health care services roadmap in the long run. The samples are 32 hospitals. Profitability was measured in the aspect of profit rate with normal profit to total assets, and normal profit to gross revenues as dependent variables in respective. Independent variables were classified by general factors, i.e., location, intern/resident training, period of opening, number of beds, and managerial factors(current ratio, fixed ratio, liability to total assets, total assets turnover, personnel costs, materials cost, administrative cost), and finally factors related to patient treatment(average length of stay, bed occupancy rate, admission ratio of outpatients). The methods of analysis are correlation and multiple regression analysis. This study shows firstly, a lot of hospitals are optimal current ratio. Hospitals in upper 100% current ratio are 81.2%. And the personnel cost in total costs are high. Secondly, the trend of normal profit to gross revenues of hospitals are deteriorating gradually. And lastly, as a result of multiple regression analysis, the factors had on significant effect on normal profit to total assets are fixed ratio(+), liability to total assets(-), bed occupancy rate(+), admissions of outpatients(+), etc. And the factors had on significant effect on normal profit to gross revenues are current ration(+), fixed ratio(+), personnel cost(-), administrative expenses(-), admissions of outpatients(+), etc. In conclusion, to improve the profitability of hospitals, the efforts to reduce personnel cost and average length of stay might be needed. And also beds utilization rate need to be increased.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.29-36
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• 2020

Stock price multiple is one of the most well-known equity valuation technique used to forecast equity price. It measures by multiplying "the ratio of stock price to a value driver" by a value driver. The value driver can be earning per share (EPS), sales or other financial measurements. The objective of price multiple technique is to evaluate the value of assets and compare how similar assets are priced in the market. Although stock price multiple technique is common in financial filed, studies on the application of the technique in Thailand is still limited. The present study is conducted to serve three major objectives. The first objective is to apply the technique to measure value of firms in banking sector in the Stock Exchange of Thailand. The second objective is to develop composite price multiple index to forecast equity prices. The third objective is to compare valuation accuracy of different value drivers of price multiple (i.e. EPS, Earnings Growth, Earnings Before Interest Taxes Depreciation and Amortization, Sales, Book Value and Composite Index) in forecasting equity prices. Results indicated that EPS is the most accurate value drivers of price multiple used to forecast equity price of firms in baking sector.