• Journal of Advanced Navigation Technology
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• v.24 no.2
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• pp.61-66
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• 2020

Since the ocean accounts for 70.8 percent of the earth's surface, the success of IoT technology in the marine industry is to collect information from devices placed in a wider range. LPWA is a feature with a wide range of communication and is very suitable for deployment in the ocean. In this paper, the real-sea performance distance experiment was carried out based on Private LoRa, a key technology for executing the electronic phrase real-name system. A private LoRa module based on sx1276 was developed, and Gateway was developed to transfer data received by private LoRa to the server using SKT Cat. M1. After installing gateways at 599 meters above sea level and experimenting with data transmission and reception at 25 km, 40 km and 60 km, we were able to see that the communication success rate was obtained to be 96.1%. 97.1% and 96.2% respectively.

• International Journal of Internet, Broadcasting and Communication
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• v.10 no.3
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• pp.11-25
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• 2018

While being believed that decrypting any RSA ciphertext is as hard as factorizing the RSA modulus, it was also shown that, if additional information is available, breaking the RSA cryptosystem may be much easier than factoring. For example, Coppersmith showed that, given the 1/2 fraction of the least or the most significant bits of one of two RSA primes, one can factorize the RSA modulus very efficiently, using the lattice-based technique. More recently, introducing the so called cold boot attack, Halderman et al. showed that one can recover cryptographic keys from a decayed DRAM image. And, following up this result, Heninger and Shacham presented a polynomial-time attack which, given 0.27-fraction of the RSA private key of the form (p, q, d, $d_p$, $d_q$), can recover the whole key, provided that the given bits are uniformly distributed. And, based on the work of Heninger and Shacham, this paper presents a different approach for recovering RSA private key bits from decayed key information, under the assumption that some random portion of the private key bits is known. More precisely, we present the algorithm of recovering RSA private key bits from erased key material and elaborate the formula of describing the number of partially-recovered RSA private key candidates in terms of the given erasure rate. Then, the result is justified by some extensive experiments.

• Journal of the Society of Disaster Information
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• v.20 no.2
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• pp.245-256
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• 2024

Purpose: Securing the continuity of essential functions in the private sector and ensuring the stability of people's daily lives. Method: Based on the national core-based management targets, private sectors in areas directly related to people's lives are selected. Presents standards for establishing functional continuity plan obligations. Result: Establishing the scope of establishing a functional continuity plan in five areas that have not been designated as mandatory in the private sector and presenting standards based on this. Conclusion: In disaster situations, functional continuity of the private sector, which is directly related to people's lives, can be secured to maintain people's daily lives and establish a social safety net.

• Journal of Distribution Science
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• v.11 no.3
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• pp.31-37
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• 2013

Purpose - The present research has been undertaken to examine the Customer Relationship Management (CRM) strategies adopted by public and private sector banks in India. The initial part of research helps to identify the factors of overall satisfaction of customers. The study also tries to identify the key determinants of CRM of Indian banking. Research design, data, methodology - The present research uses a self-structured questionnaire having a reliability score of 0.817 to elicit responses from customers in New Delhi and surrounding areas in India to examine the CRM used by public and private sector banks for enhancing customer satisfaction. The scale had 32 questions covering customer perceptions related to overall satisfaction and factors contributing to CRM. Results - The results highlight that overall satisfaction comprises of two factors namely personalised Services; and reliability and dependability. The determinants of CRM as identified through survey are: Speed, safety and security; Employee CRM; on time services; customer targeting; and friendly and helpful staff. The results also highlight that safety and security was preferred to other factors by the respondents. Conclusions - The findings of this study show that in terms of performance private sector banks fared better in providing CRM services than public sector banks.

• Journal of the Korean Society of Costume
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• v.63 no.5
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• pp.61-71
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• 2013

As an emerging e-retail model, private shopping malls are transforming the traditional retail systems. These malls are expanding in Europe and the United States and have recently arrived in Korea. This study investigates the relationships among the usefulness of SNS(Social Networking Sites), shopping values, and purchase intentions for fashion products in private shopping malls. The analysis was based on a survey of consumers, aged between 20 and 39, who recently purchased fashion products from a private shopping mall. Two hundred samples were used in the final analysis. The study employed descriptive statistics, Cronbach's alpha, confirmatory factor analysis, and structural equation modeling. The relationships among usefulness of SNS, shopping values, and purchase intentions was verified through structural equation modeling. More specifically, the usefulness of SNS significantly influenced the utilitarian shopping values as well as purchase intention of fashion products. Utilitarian shopping values, in turn, significantly influenced hedonic shopping values and purchase intention. Further, hedonic shopping values had a significant effect on purchase intention.

• Journal of Navigation and Port Research
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• v.31 no.4
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• pp.317-323
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• 2007

As economic trade between Korea and China has been encouraged with the rapid growth of Chinese economy and port competition in Northeast Asia, Korean government is trying to promote development and consolidation of ports to cope with the lack of facilities. Thus, many projects for port development have been propelled including the enactment the 'Private investment promotion law for social overhead capital 1994.' However, there are still some unsettled issues since considerable part of risk is still allocated to the Government when it has to support the private businesses in these port investments whenever unexpected problems arise. Allocation of risk among the participants - in this case especially - is a very subtle issue, however, it was revealed that not many precedent researches were done on the subject. In my previous research, I classified and analyzed 4 principle risks i.e, construction, management, financial and social risk. This research investigates the reasonable allocation of the risks among the participants using the Hierarchial Fuzzy Process. In the result of analysis, responsibility of private party is the most important and it must put the responsibility before Government' roll concerned. Also, this research displayed and proposed the direction of management method on port development in a view of minimizing risk and maximizing initiative of a private party.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.4
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• pp.131-142
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• 2022

The research aims to test the impact of marketing culture and rational decisions in academic entrepreneurship during entrepreneurial marketing by focusing on the main problem and the challenges that Iraqi private universities face. The most important of these challenges is probably the inability of the private universities to keep pace with the development and the environmental challenges. The researcher chose 26 private Iraqi universities/colleges for the study. The sample was taken from deans, assistant deans, and heads of departments, with 310 people distributed among the various colleges. The researcher used the electronic questionnaire as a tool for collecting information. Data analysis was based on the (SPSS) and (AMOS) programs. The researchers arrived at many conclusions. The most important finding was the impact on both the marketing culture and rational decision on academic entrepreneurship through entrepreneurial marketing. The higher administration in the Iraqi private universities/colleges always strive to adhere to the marketing values, norms and traditions through a commitment to rational decisions to achieve academic entrepreneurship. The higher administrators increase their commitment and adherence to this influence by adhering to marketing entrepreneurship.

• Journal of Information Science Theory and Practice
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• v.4 no.1
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• pp.30-48
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• 2016

The study tested a hybrid model with constructs drawn from the Technology Acceptance Model (TAM) and Diffusion of Innovation (DOI) theory in order to examine the moderating effect of productivity and relative advantage (RA) on perceived usefulness (PU) vis-à-vis electronic information resources (EIR) adoption in private university libraries in Ogun and Osun States of Nigeria. The descriptive research design was adopted in the study. The population consisted of 61 (55.0%) librarians and 50 (45.0%) library officers (totaling 116—100%) in Babcock University, Bells University, Covenant University, Bowen University, Oduduwa University, and Redeemer's University. Purposive sampling procedure was adopted after which total enumeration was used since the total population is small. The questionnaire was used for data collection. Of the 116 copies of the questionnaire administered, 111 (95.7%) were found usable. The instrument was structured based on a 4-point Likert agreement scale of Strongly Agree, Agree, Disagree, and Strongly Disagree. Data were analyzed using descriptive statistics like tables of frequency counts and percentage. The findings revealed that productivity and relative advantage are significant moderators of perceived usefulness of EIR adoption in private university libraries in Ogun and Osun States, Nigeria.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.05a
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• pp.155-156
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• 2018

블록체인은 DLT 기술로서, P2P 네트워크의 영역별로 유지 관리되는 트랜잭션의 추가 전용 공유 레코드 기술이다. 그 중 Private Blockchain은 허가된 사용자 멤버만으로 구성된 블록체인 환경으로, 소수의 신뢰노드만이 블록 생성 합의에 참여하여 빠른 블록체인을 형성하고 이를 하나의 원장으로 공유한다. 따라서 본 논문에서는 Private Blockchain의 허가된 사용자의 신원확인을 위한 인증구조인 PKI(Public Key Infrastructure)와 AKI(Accountable Key Infrastructure)를 비교 분석하고 KSI(Keyless Signature Infrastructure)기반의 인증관리를 제안한다.

• Korean journal of communication and information
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• v.80
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• pp.224-253
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• 2016

In this study, we analyzed the television news frames related to private school irregularities. Television broadcasting stations have not dealt with underlying problems of private school irregularities, but their reporting have been focused more on stating the situations. While Public announcing frame, Interference and solutions frame, Moral hazard frame and Protests and strikes frame have been applied in reporting, Autonomy highlighted frame and Publicity highlighted frame which are fundamental to the existence of private schools hardly appeared. In particular, the adhesion between private schools and political power has been continuously pointed out to be a cause of raising problems, whereas articles with such perspectives were hard to find. As a result, television broadcasting stations are required to change the way in reporting of private school irregularities in order for a lively discussion about them as the social agenda.