• 한국컴퓨터정보학회논문지
• /
• 제22권2호
• /
• pp.9-19
• /
• 2017

Useful continuous sensing applications are increasingly emerging as a new class of mobile applications. Meanwhile, open, multi-use sensor devices are newly adopted beyond smartphones, and provide huge opportunities to expand potential application categories. In this upcoming environment, uncoordinated use of sensor devices would cause severe imbalance in power consumption of devices, and thus result in early shutdown of some sensing applications depending on power-hungry devices. In this paper, we propose EnergyCordy, a novel inter-device energy use coordination system; with a system-wide holistic view, it coordinates the energy use of concurrent sensing applications over multiple sensor devices. As its key approach, we propose a relaxed sensor association; it decouples the energy use of an application from specific sensor devices leveraging multiple context inference alternatives, allowing flexible energy coordination at runtime. We demonstrated the effectiveness of EnergyCordy by developing multiple example applications over custom-designed wearable senor devices. We show that EnergyCordy effectively coordinates the power usage of concurrent sensing applications over multiple devices and prevent undesired early shutdown of applications.

• 한국생활과학회지
• /
• 제22권5호
• /
• pp.419-431
• /
• 2013

This study examined the childcare use pattern of the working mothers with preschool children and the factors affecting their use of multiple childcare. The 7th wave data of "Korea Welfare Panel Study" were analyzed for this study. The working mothers with preschool children were selected from the data set and a total of 292 working mothers were included in the analysis. More than 70% of the working mothers were using only one kind of childcare, mostly childcare center and kindergarten and 22.5% of the mothers were using more than two of childcare arrangements. Child factors, maternal factors, household factors, and economic factors were included in the hierarchical logistic regression model in the presented order to predict the use of multiple childcare. The results showed that the child's age and maternal education were positively related to the use of multiple childcare, while whether both parents live with the child, number of children within household, and the poverty status were negatively related to the use of it. Based on these results, we can confer that the main motive for multiple childcare use is to provide various experiences for their children.

• 융합보안논문지
• /
• 제18권4호
• /
• pp.89-93
• /
• 2018

이슬람 극단주의 무장단체 이슬람국가(ISIL), 알 카에다(Al-Qaeda) 등은 불특정다수의 시민들이 이용하는 지하철, 백화점 등과 같은 다중이용시설을 공격 대상으로 하고 있어, 그 공포와 두려움이 확산되고 있다. 만약 한국에서 테러리즘이 발생한다면 불특정다수의 시민들이 이용하는 다중이용시설을 그 대상으로 할 가능성도 제기되고 있기에, 이와 관련한 점검이 시급한 실정이다. 그러나 다중이용시설의 개념이 다의적이고 그 범위가 광범위하여 테러리즘에 대비하기 위한 점검에 한계가 발생하고 있다. 이 연구에서는 다중이용시설 관련법의 검토를 통한 해결책을 모색하였다. 우선, 다중이용시설 관련법은 국가기관의 필요에 의해 제정되어 그 개념과 범위가 매우 포괄적이다. 이로 인하여 대(對)테러리즘과 관련한 점검의 범위에 대한 논란이 발생할 우려가 있다. 다음으로, 테러리즘이 발생할 경우 주무부서가 명확하지 않아 권한과 책임의 문제도 발생할 수 있다. 이러한 한계를 극복하기 위하여 다중이용시설의 범위를 재설정함과 동시에 주무부서의 역할에 대한 논의를 하였다.

• Management Science and Financial Engineering
• /
• 제21권2호
• /
• pp.9-11
• /
• 2015

This note is concerned with the use of incomplete weights in multiple criteria decision making. In an earlier study, an optimistic use of incomplete weights is developed to prioritize decision alternatives, which applies the most favorable set of weights to the alternative to be evaluated. In this note, we develop a method for a pessimistic use, thereby applying the least favorable weight set to the evaluated alternative. This development makes possible a more detailed prioritization of competing alternatives, and hence enhances decision-making powers.

• 한국소음진동공학회논문집
• /
• 제16권11호
• /
• pp.1093-1099
• /
• 2006

In general, a measuring instrument of sound noise use only one wired channel by one sensor. Therefor the measuring instrument use wired cables as the number of channels are provided by instrument. In a point of observed target it needs data from multiple sensors and In case of measured point is a large numbers the environment of constitution would be complicated because that is in need of channel and cable. So we need the method that can improve the existing transmission channel and cable environment even the measured point is increased. If we use the Code Division Multiple Access(CDMA) we transmit a large numbers of sensor data by using a common transmission channel. We present the method that transmits data of multiple sensor to wireless by using CDMA. This method can simplify the measurement environment dramatically when collecting data by using multiple sensor. We expect this study to contribute the part of multiple access technology and relation technologies on the measuring environment.

• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2006년도 춘계학술대회논문집
• /
• pp.133-137
• /
• 2006

In general, a measuring instrument of sound noise use only one wired channel by one sensor. Therefor the measuring instrument use wired cables as the number of channels are provided by instrument. In a point of observed target it needs data from multiple sensors and In case of measured point is a large numbers the environment of constitution would be complicated because that is in need of channel and cable. So we need the method that can improve the existing transmission channel and cable environment even the measured point is increased. If we use the Code Division Multiple Access(CDMA) we transmit a large numbers of sensor data by using a common transmission channel. We present the method that transmits data of multiple sensor to wireless by using CDMA. This method can simplify the measurement environment dramatically when collecting data by using multiple sensor. We expect this study to contribute the part of multiple access technology and relation technologies on the measuring environment.

• 한국산림과학회지
• /
• 제76권4호
• /
• pp.361-369
• /
• 1987

다목적(多目的) 산지이용(山地利用)은 산지이용(山地利用)의 효율성(效率性)을 제고(提高)하기 위한 경제학(經濟學)의 한 응용분야로서, 외국(外國)에서 임업경영(林業經營)에 널리 사용(使用)하는 기법(技法)이다. 본고(本稿)에서는 다목적(多目的) 경영(經營)을 위해 사용(使用)되는 수리계획법(數理計劃法)의 일종인 STEM과 제약조건법(制約條件法)을 임업분야(林業分野)에 도입 적용하여 가상자료에 의거 이들 방법간(方法間)의 장(長) 단점(短點)을 비교(比較) 검토(檢討)하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제9권8호
• /
• pp.3258-3275
• /
• 2015

The rise in recent technology has changed the ways, in which people communicate with one another. Social networking services (SNSs) have become one of the most representative means. General SNSs allow users to create their own unique profiles, search for fellow members, share information, etc., while other SNSs have functions that cater to different needs of users. As a result, users of SNSs have begun to pick and choose different SNSs and concurrently use multiple SNSs in order to fulfill all their needs. This exploratory study examined which SNSs are used together and the characteristics that predict the use of multiple SNSs. In addition, it observed the differences between consumers' usage of multiple SNSs in different cultures. An online survey was administered to SNS users in the United States and Korea. The results of the study showed that the use of multiple SNSs is not yet prevalent in Korea, the country that represented a collectivistic culture. In addition, in the U.S., the highest number of users reported that they were active on at least three SNSs.

• 한국정보통신학회논문지
• /
• 제9권7호
• /
• pp.1412-1418
• /
• 2005

현재 점점 더 많은 휴대용 단말들은 서로 다른 access 기술들을 이용하여 Internet에 연결하기 위해 많은 인터페이스를 가지고 있다. 이러한 각각의 access 기술들은 서비스 지윈 영역, bandwidth, 그리고 신뢰성 등의 그들만의 특성들을 갖게 된다. 이와 같이 두 개 이상의 인터페이스를 가지고 있는 단말은 현재 사용 중인 인터페이스의 문제가 발생했을 경우 다른 여분의 인터페이스를 통해 인터넷에 접하거나, 효과적으로 traffic을 분산시킬 수 있는 등 많은 장점들을 지니고 있다. 이런 환경을 단말의 Multihoming이라고 하는데 현재까지는 인터넷 상의 프로토콜이 이와 같은 Multihoming을 지원하고 있지 않다. 따라서 본 논문은 이와 같은 IPv6 환경에서 이동 단말의 Multihoming 지원 시 필요한 기술적인 고려사항에 대해 알아보고 multiple interface로부터 획득한 address들의 등록을 통해 신뢰성 있는 접근성과 vertical handover를 지원할 수 있는 방법을 소개한다.

• 한국실내디자인학회논문집
• /
• 제22권5호
• /
• pp.216-224
• /
• 2013

There are the relevant provisions that apply to building regulations about the Building codes, Fire Protection laws, and more Multi-using interior finish materials businesses etc. The differences between these regulations are as follows: The Building codes is defined the main use of the building according to facilities to used to set the scale by the use of the floor space, On the other hand, Fire Protection laws are the basic purpose and the act of using the architectural space(or sales) by separating object by fire. And Multiple-using Businesses Facilities consist of two regulations engaged in the kind of law and the size of the floor area. One building can not be based on operating facilities and together in Multiple use businesses Law. As such, the Buildings are applied to the Building codes, Fire Protection laws, such as Multi-using Businesses Facilities interior construction industry due to the structural differences in the position of the designer feeling a lot of difficulties and confusion. The Multi-use businesses Facilities engage in the kind of law, the size of the floor area and seating capacity. These can not be based on operating facilities, and consists of two regulations together in one building. This study is purposed to help improving the finish of the interior architecture that is related to the Building code regulations, Fire Protection laws, Multi-using Facilities interior finishing material relevant with the provisions from the law through analyze the case of developed countries, and the current Multiple use Businesses Facilities research range from the law of multiple-using facilities, interior finishing, interior architecture for supervision reasonably and compensation for the interior design. So, Result is as follows: First, interior decorations can be separated the fixed material and the moveable things. second, It should be included multi-using Business though small size business space at the basement floor. third, It should be established statute law that design and construction responsibility. forth, re-testing fire resist performance after some period. and finally, it need to mitigate regulation where be installed sprinkler.