• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 1991.10a
• /
• pp.357-365
• /
• 1991

Military material-supply problem is one of the most important logistic problems under conscription system. Formally, two approaches were followed lowed to this problem. (1) Needs for material per soldier is estimated by past experience. The total demand for the material is estimated by multiplication of this coefficient and the number of soldiers given in the governmental programme. (2) The total demand for the material is estimated by the forcast based on the past statistics. The material supply system based on these estimates, however, relies too much on past statistics ;lack of flexibility is feared to adapt itself to changes in conscription programme, life-time of materials and so on. In this paper, the author has followed new approach : The conscription system itself is a linear input-output system, in which sequences of enlistment and dischargement are regarded as input and output. And the sequencial demands for the material are related by another linear transformation to the former sequences. In this regard z-transformation is applied to construct to transfer functions associated with this system. With these transfer functions, methods are established to determine the material demand corresponding to conscription programme and life-time distribution. Numerical methods by computers are also prepared.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.14 no.4
• /
• pp.85-90
• /
• 2014

We realized a wireless multiple integrated laser engagement system composed of personal area network using Zigbee. The wireless laser detector had function of analog signal processor, decoder and wireless communication. However, it should consume low power and be small and light in order to be attached to a soldier's body. The decoder was realized in software to be small and light. We induced low power consumption as reducing the load of system using a narrow band optical filter. The fabricated wireless laser detector functioned well in optically noisy environment. Although the communication to the player unit through the wireless personal area network was dependent on the attachment place it was perfectly worked with transmission power of -40.2dBm or more.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2022.05a
• /
• pp.60-62
• /
• 2022

본 논문은 국방 클라우드를 기반으로 병사 스마트폰 사용에 대한 거버넌스의 방안을 연구한다. 2020 년부터 군 부대 내에서 병사의 스마트폰의 사용이 전면 시행되었다. 하지만 대량의 병사 스마트폰을 인적자원을 통해 관리하기 때문에 많은 인적자원 리소스가 필요하고, 보안이 중요한 부대 특성상 보안 점검을 사유로 인권침해가 발생하고 있다. 따라서 군 부대 특성을 고려한 거버넌스를 정의하고 도입할 필요가 있다. VMI(Virtual Mobile Infrastructure) 시스템을 이용한 국방 클라우드 기반 스마트폰 관리 시스템은 스마트폰을 군 보급품으로 지급하고 모든 스마트폰 프로세스 및 데이터를 중앙 서버를 통해 관리한다. 본 논문에서는 국방 클라우드 기반 스마트폰 거버넌스를 정의하고 중앙 서버를 통해 모든 스마트폰의 프로세스와 데이터를 관리함으로써 얻을 수 있는 기대효과를 관리적, 보안적 측면에서 연구하였다.

• Korean journal of applied entomology
• /
• v.52 no.3
• /
• pp.227-237
• /
• 2013

The black soldier fly (BSF), Hermetia illucens, is a generalist detritivore that is usually exploited for recycling environmental wastes, including food remnants. These insects can also be used to produce antibiotics for medical applications. For this purpose, flies need to be mass-reared using an automatic rearing system that generates various sounds. Insects use sound as a means of communication for mating or warning against predators. Thus, extrinsic sounds may interrupt the normal physiological processes of insects. In this study, we analyzed the physiological changes due to various sound treatments at $25^{\circ}C$ and 8:16 h (L:D) photoperiod. At 95 dB, larvae were exposed to different sound frequencies (0-5,000 Hz). The treated larvae were adversely affected by the high-frequency sounds and showed significant reduction in pupation and adult emergence. Different sound intensities (0-105 dB) at 5,000 Hz caused significant changes in the pupation and survival of the adults at 85 dB or above. Under a stress sound condition (5,000 Hz, 95 dB), the BSF larvae exhibited aberrations in the expression of genes related to the immune system and digestion. These results indicate that high-frequency sound treatments at or above 85 dB act as a stress sound to BSF development.

• The Journal of Information Systems
• /
• v.19 no.4
• /
• pp.183-206
• /
• 2010

The technology acceptance model (TAM) is a lot of cited in information technology adoption and usage researches. But TAM has been conducted primarily in volitional environments of the adoption of new technology. This paper discusses technology acceptance in accounting information systems to examine TAM with Characteristics of Organizations and Individuals in mandated using Combined Guard System. Combined Guard System is a scientific guard system that is composed of automated surveillance system, automated sensing system and control system. GOP Scientific Guard System is operated by GOP unit in Korean Army O Division from 2006. In this study, using the extended technology acceptance model, we have analyzed factors which affect the usage intention of GOP Scientific Guard System in mandated using environment. Based upon previous researches, we have selected Support of management unit, Training, Perceived Risk, Subjective Knowledge and Computer Self-efficacy, perceived usefulness, perceived ease of use, and usage intention as variables and proposed a research model. We collected 253 survey questionnaires from Korean army officer and soldier who are serviced at GOP unit in O Division, and analyzed the data using SPSS 12.0 and SmartPLS 2.0M3. According to the results by PLS analysis, According to the results by PLS analysis, Training and Subjective Knowledge did not affect Perceived usefulness, but the other hypotheses were accepted. And Perceived usefulness, and Ease of use influenced the Usage intention. The results of this study will increase Characteristics of Organizations and Individuals on GOP Scientific Guard System and eventually contribute to establishing the activation of Combined Guard System.

• Journal of the Korea Institute of Military Science and Technology
• /
• v.11 no.1
• /
• pp.5-14
• /
• 2008

In this paper, we propose operational concepts and technology requirements for guard and surveillance robots in military field. After surveying on current trend of guard robots, we present an operational scenario and technology requirements. To begin with, we discriminate the use of fixed type guard robots(fixed robots) and mobile guard and surveillance robots(mobile robots). Fixed robots are used for substituting daily guard by human soldier. In contrast, mobile robots are used for compensating shadow area where not to be covered by fixed type robots. To be specific, mobile robots adopt communication relays to extend operational range and sensor networks to collecting information. In addition, we present technology requirements composed of wireless communication system, platform, sensor nodes, unmanned driving technology, power supply system and IFF etc. In conclusion, in order to maximize co-operational functionality, fixed robots and mobile robots should be tightly related.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2008.10a
• /
• pp.1251-1258
• /
• 2008

The purpose of this research is to introduce the new temporary earth retaining wall system using landslide stabilizing piles. This system is a self-supported retaining wall(SSR) without installing supports such as tiebacks, struts and rakers. The SSR is a kind of gravity structures consisting of twin parallel lines of piles driven below dredge level, tied together at head of soldier piles and landslide stabilizing piles by beams. There are three types of excavation wall structures: standard method for medium retained heights(<8.0m), internal excavation method and slope excavation method for deep-excavation applications(>8.0m). In the present study, the measured data from seven different sites which the SSR was used for excavation were collected and analyzed to investigate the characteristic behavior lateral wall movements associated with urban excavations in Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2019.05a
• /
• pp.205-207
• /
• 2019

Special training soldier for thermal equipment during army heavy equipment maintenance education is small training equipment and many trainees have few opportunities for practical training, and there is a high risk of safety accidents during maintenance training. Because practical training is limited and repeated practice is difficult, a training system is needed. In this study, we propose a virtual training system that can reduce the training cost beyond the time and space, enable realistic experiential training, reflect the standard maintenance manual, and train teamwork. The virtual training system using the virtual augmented reality is a system that can reduce the cost beyond the space and time and can be practically practiced. The first-person virtual training system using HMD, which is the three-dimensional display system proposed in this study, is suitable for army thermal equipment maintenance education system. The proposed system is expected to be useful for maintenance training of other equipments and other groups because it has good scalability.

• Journal of Korean Academy of Nursing
• /
• v.27 no.3
• /
• pp.577-587
• /
• 1997

Purpose : To collect and interpret basic data involving the discomfort level of platelet donors and to see which nursing interventions would help make plateletpheresis more comfortable. Methods : Using "the Platelet Donor's Discomfort Scale" developed by the researcher herself and reviewed by an expert panel, the severity of discomfort as well as factors contributing to the development of this discomfort were analyzed. This scale contained 59 items and each item was scored by the 4-point Likert manner. Between March 1, 1996 and May 31, 1996, 500 platelet donors(16 years of age and older) were enrolled in this study. The Statistical methods used were factor analysis, t-test, and ANOVA. The results were as follows : 1. The mean of the platelet donor's discomfort scale was 130, range 69-207, possible score ranging from 59-236. 2. The platelet donor's discomfort scale had psychological, environmental, physical, and time-related factors. The time- related factor was the highest positive correlation with the development of the discomfort. 3. In looking at the psychological and environmental factors of the discomfort scores, the 16-20 age group had significantly higher ratings than those of the 26-30 age group. The students' group had higher scores than the soldier's group, and those who used the V-50, MCS -3P, or the PCS Plus machines had higher scores than those who used the COBE Spectra machine(P<.05, respectively), 4. In relation to the physical factor of the discomfort score, the youngest group felt significantly more discomfort, the student's group had a higher score than the soldier's group, and those who used the V-50, MCS-3P, or or the PCS Plus machines had higher scores than those who used the COBE Spectra machine(P<.05, respectively). 5. The time related factor of the discomfort score had the highest scores in every variable, however, statistically significant differences were not found between any of the variables(P>.05). Conclusion : Based on the above results, it can be oserved that the time-related factor was the most important factor influencing discomfort. The age and job of the donor, as well as the type of machine used, were significant variables in predicting the level of discomfort, regardless of psychological, environmental, and physical factors. This data could be used to determine nursing interventions that would relieve some of the discomfort of patients, as well as donors, undergoing plateletpheresis. Furthermore, consideration of the donor's time, introduction of a platelet donor pool system, publicity and education about platelet donation are required.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.43 no.3
• /
• pp.228-242
• /
• 2020

In recent years, interest in the welfare of soldiers is increasing. More specifically, soldiers enlisted to fulfill their military service obligations live a group life that is controlled by group life, unlike military officers selected by their will. Therefore, this study aims to verify whether there is an effect of improving the morale of soldiers by increasing the satisfaction of military service meals along with the trend of increasing morale through enhancement of soldier welfare. In order to achieve the purpose of this study, we surveyed 145 army soldiers working in the front and rear areas and used 137 valid samples for analysis. The results of this study are as follows. First, both SERVQUAL (Responsiveness·Assurance, Tangibles) and Servicescape (Spatial Environment, Spatial Design) had a positive (+) effect on military meal satisfaction. Second, military service satisfaction and emotional commitment have a positive (+) effect on morale. Third, satisfaction with military meals has a positive effect on emotional commitment. This research has also shown that improvements in SERVQUAL (Responsiveness·Assurance, Tangibles) and Servicescape (Spatial Environment, Spatial Design) improve military service satisfaction and emotional engagement. Military food service SERVQUAL (Responsiveness·Assurance, Tangibles) and Servicescape (Spatial Environment, Space Design) must pay attention to increase military morale.