• 통상정보연구
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• 제6권3호
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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.

• 농업과학연구
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• 제4권2호
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• pp.229-238
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• 1977

유기인계(有機燐系) 농약(農藥)의 잔류소장(殘留消長)을 파악(把握)하여 작물(作物)에 대(對)한 농약(農藥)의 사용(使用)을 기(期)하고저 배추, 오이, 토마토, 포도, 복숭아에 대(對)해 Diazine에 EPN, Parathion, Malathion, Diazinon, Sumithion의 경전잔류(經前殘留)를 조사(調査)한 결과(結果) 1. 배추에 대(對)한 Diazinone의 잔류소장(殘留消長)은 약제살포(藥劑撒布) 21일후(日後)에 0.25~0.38p.p.m이 EPN은 1 회(回) 살포시(撒布時)는 7일후(日後)에 1.39~2.69p.p.m이 2살(撒) 포시(布時) 14 0.96~2.34p.p.m 검출(檢出)되었다. 2. 포되에 대(對)한 EPN의 잔류소장(殘留消長)은 약제살포(藥劑撒布) 7일후(日後) 1.09~1.80p.p.m이 Sumithion은 14일후(日後) 0.17~0.53p.p.m이 검출(檢出)되었다. 3. 복숭아에 대(對)한 Parathion의 잔류소장(殘留消長)은 약제살포(藥劑撒布) 14일후(日後)에 0.40~0.61p.p.m이 검출(檢出)되었다. 4. 토마토에 대(對)한 Dimethoate의 잔류소장(殘留消長)은 약제살포(藥劑撒布) 7일후(日後)에 0.141p.p.m이 검출(檢出)되었다. 5. 오이에 대(對)한 EPN의 잔류소장(殘留消長)은 약제살포(藥劑撒布) 3일후(日後)에 2.11~2.14p.p.m이 검출(檢出)되었고 Malathion은 약제살포당일(藥劑撒布當日)에 0.46p.p.m 3일후(日後)에 0.062~0.025p.p.m이 검출(檢出)되었다. 6. 과실(果實)및 채소류(菜蔬類)에 대(對)한 약제간(藥劑間) 경시분해도(經時分解度)가 반감기간(半減期間)에는 역(逆)의 관계(關係)가 성립(成立)되었다. 7. 배추 포도 오이에 대(對)한 EPN의 수확전(收穫前) 사용금지기간(使用禁止期間)은 배추는 1회(回) 살포기(撒布期) 7일간(日間), 2회살포기(回撒布期) 14일간(日間), 오이는 3일간(日間), 포도는 7일간(日間)이고 8. 복숭아에 대(對)한 Parathion의 수확전(收穫前) 사용금지기간(使用禁止期間)은 14일간(日間) 9. 토마토에 대(對)한 Dimethoate의 수확전(收穫前) 사용금지기간(使用禁止期間)은 7일간(日間) 10. 오이에 대(對)한 Malathion의 수확전(收穫前) 사용금지(使用禁止) 기간(期間)은 0~3일간(日間) 11. 포도에 대(對)한 Sumithion의 수확전(收穫前) 사용금지(使用禁止) 기간(期間)은 21일간(日間) 12. 배추에 대(對)한 Diazinon의 수확전(收穫前) 사용금지(使用禁止) 기간(期間)은 21일간(日間)으로 정(定)하여 농약(農藥)을 사용(使用)함이 농산물(農産物)의 안전유통(安全流通)을 위(爲)해 좋은 것으로 사료(思料)된다.

• 한국정보통신학회논문지
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• 제16권3호
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• pp.511-521
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• 2012

JXTA는 개방형 프로토콜로서 인터넷이나 MANET(Mobile Adhoc NETwork)에서 연결된 기기들 사이의 P2P 방식 통신을 가능하게 한다. 본 논문에서는 JXTA를 기반으로 하는 스마트폰 협업 어플리케이션의 개발에 대하여 기술한다. 체계적인 개발을 위하여 P2P 네트워크에서 필요한 핵심 서비스와 협업 서비스가 정의되고, 정의된 서비스를 지원하기 위한 프로토콜이 설계된다. 개발된 어플리케이션은 다양한 가상의 작업공간을 지원하여 스마트폰을 활용한 효과적인 협업 환경을 제공하며, 모바일 네트워크에 의존하지 않고 근거리에 있는 스마트폰 사용자 간에 협업을 지원하기 때문에 재난 지역 등의 다양한 상황에서도 유용하게 사용될 수 있다.

• The Journal of Korean Physical Therapy
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• 제12권2호
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• pp.57-67
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• 2000

The purpose of this study was carried out in five rabbits of 3kg to investigate the change of superficial and deep heats in ultrasound application by coupling media. Temperature measured with thermistor needle at skin. subcutaneous, muscle in before coupling media application, after coupling media application. 2minutes. 5minutes, 7minutes, 10minutes. Coupling media was used gel, glycerin, distilled water. The data was analyzed using spss/pc+and t-test The results were as fallow : 1. With skin. gel was significant temperature change in 2minutes(p<.05). glycerin was significant temperature change in 2minutes(p<.05), 5minutes(p<.05), 7minutes(p<.01), 10minutes(p<.01). distilled water was significant temperature change in post coupling media(p<.05), 2minutes(p<.01). 5minutes(p<.05). 7minutes(p<.01). 10minutes(p<.01). With subcutaneous. gel was no temperature change. glycerin was significant temperature change in 2minutes(p<.05), 5minutes(p<.05), 10minutes(p<.01). distilled water was no temperature change. With muscle. gel was no temperature change. glycerin was significant temperature change in 2minutes(p<.05). 5minutes(p<.05). 7minutes(p<.05). 10minutes( p<.05). distilled water was significant temperature change in 10minutes(p<.05). 2. Superficial heats of skin and subcutaneous was higher temperature change than Deep heats of muscle. 3. Gel. glycerin. distilled Water required minimum treatment 10minutes fur thermal effect. 4. Gel was low temperature change superficial and deep heats. and glycerin was high temperature change superficial and deep heats. This results show that gel is high transmissiveness in the coupling media and glycerin is low transmissiveness in the coupling media.

• 한국초지조사료학회지
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• 제14권3호
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• pp.223-229
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• 1994

To find out the effects of phosphatic fertilizer application levels on the botanical composition, mineral contents and mineral nutrient deprivation of grasses and the chemical properties of soil, this expriment was arranged as a randomized complete block design with six treatments(0, 50, 100, 150, 200 and 250kg $P_2O_5$/ha) and conducted at hilly land in Gwangju, Gyeonggi Province from September, 1989 to October, 1992. The results obtained are summarized as follows: The botanical composition of grasses without posphatic fertilizer application was poor but with 150kg $P_2O_5$/ha application, remarkably increased in legume of grasses and decreaed in weed. As the phophatic fertilizer levels increase, P, Ca and Mg content of grasses were increased but N and K content tended not to be regular, and Ca/p and K/Ca+ Mg equivalent ratio were lowered. Up to 150kg $P_2O_5$/ha application level, the mineral nutrient content deprived by dry matter yield was increased but with that over application, tend not to be increased. Most of applied mineral elements were accumulated at a subsurface of grassland and as the phosphatic fertilizer application levels increase, the available $P_2O_5$ and exchangeable Mg contents of the soil tended to be remarkably increased and exchangeable K content tended to be decreased, but pH, OM and exchangeable Ca content tended not to be regular.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.7-10
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• 2012

본 논문에서는 AP 없이도 직접 단말 간 통신이 가능한 Wi-Fi Direct 기술에서, 다중 사용자 연결을 고려해 GO를 선정하도록 하는 방법에 대해 연구하고 해당 방법을 적용한 어플리케이션을 개발하였다. 제안하는 방법은 GO 선정 횟수와 누적 저장된 과거 P2P 연결에 대한 정보에 가중치를 적용하여 P2P 그룹 연결 도중에 다른 단말로부터의 연결 요청이 있을 가능성이 높은 단말을 GO로 선정하도록 하였다. 본 문에 나타난 방법을 통해 실제 구현한 어플리케이션이 GO를 제대로 선정함을 확인하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권2호
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• pp.1105-1117
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• 2017

Financial technology, also known as FinTech, is one of the fast growing global businesses in since its inception in 2008. Fintech is a new economic industry, comprised of companies that adopted the latest technologies to provide more efficient financial services than the traditional financial services. Fintech companies are generally small to medium sized startups trying to disintermediate existing financial systems. FinTech companies can be differentiated in several areas, based on its business solutions and target customers. In Korea, the Peer-to-Peer (P2P) lending companies are the most prominent in the FinTech sector. P2P lending is a method of borrowing or lending money to individuals through online services without the use of an official financial institution as an intermediary. The P2P lending companies operate their services entirely online or mobile environment. Consequently, mobile P2P lending application users are dramatically increasing. Thus, it is worth evaluating the acceptance of the mobile apps of the P2P lending companies from a user's perspective. This paper discusses user acceptance of the mobile P2P lending apps, guided by the Technology Acceptance Model. We conclude that the users' acceptance of mobile P2P lending apps are significantly influenced by perceived ease of use, perceived usefulness, and user satisfaction. These in turn influenced their attitude towards using mobile P2P lending apps and intention to use.

• 한국초지조사료학회지
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• 제34권3호
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• pp.155-162
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• 2014

This study was conducted to investigate the influence of the mixed application of chemical fertilizer (CF) and liquid swine manure (LSM) on the agronomic characteristics, dry matter yield, amino acids, minerals, and free sugars in cultivating Sorghum ${\times}$ Sudangrass hybrid (SSH) on paddy soil. The field experiment was designed in a randomized block design with three replications and consisted of CF 100% (C), CF 70% + LSM 30% (T1), CF 50% + LSM 50% (T2), CF 30% + LSM 70% (T3), and LSM 100% treatment (T4). The application of LSM was based solely on the nitrogen. Plant length, leaf length, leaf width and number of leaf were significantly higher in T4 (p<0.05), but stem diameter did not show significant differences among treatments. Stem hardness increased significantly (p<0.05) as the LSM application rate decreased, but sugar degree decreased significantly (p<0.05) as the LSM application rate decreased. Fresh yield, dry matter yield and TDN yield were the highest in T4, whereas the lowest in T2 (p<0.05). Crude protein, crude fat and crude ash were the highest in C, T4 and T2, respectively (p<0.05). However, NDF and ADF did not show significant difference among treatments. Crude fiber decreased significantly (p<0.05) as the LSM application rate increased. The total mineral content was decreased significantly (p<0.05) as the LSM application rate increased. Total amino acid content was higher in the order of T1> C> T3> T4> T2 (p<0.05). Free sugar content increased significantly (p<0.05) as the LSM application rate increased. The analysis of all the above results suggests that the application of liquid swine manure is very effective, considering the yield performance and the content of sugar degree and free sugar. In addition, liquid swine manure may be possible to grow Sorghum ${\times}$ Sudangrass hybrid without chemical fertilizer.

• Asia pacific journal of information systems
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• 제29권4호
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• pp.571-590
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• 2019

Despite the growing amount of mobile peer-to-peer (P2P) payment applications available on mobile app stores, these applications are still in their infancy and have yet to see mass adoption. This study aims to explore the factors that influence the adoption of such mobile P2P payment applications by using a large-scale data set based on the tracking of users' actual mobile application usage behavior. Our main findings reveal that the duration of each session that users use of traditional bank application has a significant relationship with their adoption of mobile P2P payment applications. In addition, we explore the social aspect of such mobile P2P payment applications by analyzing their social network applications usage and found that the amount of social network service applications used and usage duration positively impacted one's adoption of mobile P2P payment applications. These findings have important theoretical and practical implications for stakeholders of mobile P2P payment solution providers as well as intermediaries/banks who provide their own payment applications to their customers.

• 한국초지조사료학회지
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• 제21권4호
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• pp.181-190
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• 2001

This study was conducted to investigate the effect of swine liquid manure(SLM) and phosphorus fertilizer from September, 1998 to July, 1999 on the soil fertility on Italian ryegrass field, Cheju volcanic ash soil. pH(lst investigated), Mg (2nd investigated) and Cu content (2nd investigated) on soil grown by Italian ryegrass were significantly increased by an increase of fertilizer P(P