• Journal of the Korea Institute of Military Science and Technology
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• v.24 no.2
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• pp.165-174
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• 2021

This study describes a method of measurement and verification of array manifold of uniform circular array antenna applicable to multistatic Passive Coherent Location(PCL) system using FM broadcasting. In an environment of outdoor test where FM broadcast signals are scattered, array manifold measurement methods using network analyzer and multi-channel digital receiver are introduced. Also, the descriptions and solutions for the test limits of each measurement method and the considerations affecting the measurement accuracy are presented. In addition, to verify the validity of the measured array manifold, the gain and phase difference were compared with the array manifold data obtained by EM simulation, and the effectiveness and accuracy of the measured array manifolds were compared and analyzed by estimating the direction of arrival of the FM broadcast signal received from the multistatic PCL system.

• Journal of Fashion Business
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• v.1 no.3
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• pp.45-59
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• 1997

This study, on the military fashion which has been inspired by the men's military uniform, is composed of an examination of the following; the aspect on the women's hi-fashion and the street fashion and the analysis of it's intention. On hi-fashion, from the 1960s to the early half of the 1970s, by the influence of the minimalism, maintained it's couture style, which is the formal image as well as moderating the line and simplifying the details, From the latter part of the 1970s to the 1980s, mannish image was sensed greatly by the wide shoulders with pads and large silhouette. The 1990's theme was the retro. Many different expression techniques appeared, but the trend was the retro. However, on the streets, young generation and hippies wore unisex army mode because of the influence of anti-war movement. Also, Hell's Angels, punks used black leather jacket with Nazi symbol, badge and eyelet expressed to show their aggressiveness as an avantgarde fashion. The intentions of military fashion can be analyzed as women's amazon need, the feeling of movement, and the spirit of rebellion.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.237-240
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• 2018

Recently, many parts including military uniform and combat boots have been changed into functional ones in company with the development of military supplies. Especially, problems such as crack of soles and defective boots regarding combat boots have been improved, which is the motive of this study. As a result of verifying other theses, the study on the satisfaction of combat boots is not existent. The contents of study are the pressure of combat boots, the analysis on the shoelace of combat boots as the instrument for suicide and they are not interesting, which is the reason to become a subject of this study.

• Journal of the Korean Society of Costume
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• v.57 no.7
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• pp.84-97
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• 2007

Dancing with weapons existed spontaneously when war and hunting were common, and sword dancing, as a dance for banquets, developed and changed in various forms. In Korea, sword dancing was performed from the Three Dynasty Period, and in Joseon Dynasty, it was performed as court ceremony. The origin of the sword dancing, that has been performed from the Joseon Dynasty until now, and costumes for sword dancing isn't accurate. The purpose of this study is to analyze the sword dancing costume of China, Korea's neighboring country, and that of Korea in the same period, and to find out the process of wearing military uniform: Jun-mo, Jeo-go-ri, Chi-ma, Gwae-ja, and Jun-dae, being settled as the sword dancing costumes of Korea in late Joseon Dynasty. In China, sword dancing became famous in Han Dynasty, and in Tang Dynasty, it was the meridian of sword dancing with the most magnificent form. After the Song Dynasty, the sword dancing fades away. In Korea, the sword dancing started as a mask dancing of children that Hwa-rang(bravery youth) in Shilla Dynasty started. After the Unified Shiila Period, the sword dancing of Tang Dynasty spread to Korea, with active interchange between the two countries. After the Corea Dynasty, the mask dancing of children faded and the sword dancing of Tang Dynasty changes into Korean form. It was incorporated into the court ceremony after the mid-period of Joseon Dynasty, and the costumes were settled as the military uniform, which are Gwae-ja, and Jun-dae on top of Chi-ma, and Jeo-go-ri, and Jun-moon the head.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2008.10a
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• pp.106-109
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• 2008

The aim of this study is to develop a model of layering system for future soldier system. Future soldier has been supposed to carry various digital devices embedded into the combat uniform. The combat uniform must be developed to be fit to soldier's body and movement, and can be felt comfortable to soldier. The Uniform must be studied in ergonomic and physiological component because it is different from the present one. It has many devices inside, so there are some unknown barriers to set the devices on to the body. For making the ergonomic aspect of future combat suits clear, the movement of the body was researched. The size of arms(3 parts), torsos(4 parts), and legs(3 parts) of people were measured by movement. Many dots were drawn on the testees' bodies every 3cm. Each time they made compulsory poses, the distances between dots be measured and analyzed. For making the physiological aspect of future combat suits clear, the thermo-map and sweating map of body were made. The 3 maps - movement, thermo and sweating- were overlapped. The devices for future soldier were arranged on the overlapped map considering relations between devices. The final layering system developed on the arrangement of devices.

• Korean Journal of Community Nutrition
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• v.20 no.1
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• pp.53-60
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• 2015

Objectives: The purpose of this study is to provide the basic data for efficient operation and management of the military foodservice by analyzing the satisfaction of the quality of the foodservice and the perception of the military foodservice which are provided according to the ranks of the soldiers. Methods: A total of 252 military personnel (48 Private, 87 Private first class, 74 Corporal and 43 Sergeant) participated in Gyeonggi area from November 1 to 30, 2013, and data were analyzed by the SPSS Win (ver 18.0). Results: The perception with foodservice, variety of menu (p < 0.001), importance (p < 0.01), problem (p < 0.05) and leftover reason (p < 0.05) significantly differed by the rank of the soldiers. With regard to the satisfaction with food, there were significant difference by rank for all items (p < 0.01). Satisfaction with facilities did not indicate significant differences by rank. Satisfaction with sanitation indicated significant difference by rank in the categories of table ware (p < 0.05), process of distribution (p < 0.05), employee's uniform (p < 0.001) and drinking water (p < 0.05). Satisfaction with service indicated significant difference by rank with regard to kindness of employees (p < 0.01), providing information on foodservice (p < 0.05) and fast distribution (p < 0.01). Conclusions: In order to improve the satisfaction of all ranks, there is a need to offer a variety of nutritionally balanced menu and a proper amount of food provided through the voluntary food distribution services. The results also suggested the need to find a sustainable foodservice management plan to carry out satisfaction surveys regularly in the military foodservice.

• Journal of the Korean Society of Clothing and Textiles
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• v.40 no.4
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• pp.669-684
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• 2016

This study investigates Korean fighter pilot's usage and satisfaction of a flight duty uniform (FDU). The survey was conducted from October 2014 to March 2015 using Focus Group Interview (FGI) and questionnaires. FGI collected qualitative data about duty and requirements; subsequently, surveys were performed to collect quantitative data about wearing conditions and satisfaction with FDU. The results of the FGI and the questionnaire were as follows. Type of pilot duty was divided into two parts, flight duty and ground duty. It is important to consider duties as well as factors related to survival when developing FDU. According to anthropometric data and wearing size, the basic size for apparel grading should be changed from actual size, 'M95XL' to 'M100L'. It is also necessary to improve the whole sizing system. Further studies about body form changes in pilot's movement are needed to improve mobility because the respondents perceived some restrictions at several body parts in movement with the coverall uniform. Summer FDU had a low satisfaction level in vent hole function and appearance. Furthermore, protection problems in the vent hole were also an issue. Making a seasonal classification of FDU fabric will be more effective than a vent hole to increase a pilot's thermal satisfaction. Respondents had a passive stance towards FDU reform (including pocket change); therefore, a new FDU design strategy should concentrate on improving current FDU functions like mobility (or comfort) rather than dramatic changes. Pilots complained about the quality stability of FDU; therefore, quality control by military administration as well as concrete and clear design instructions by the developer should be attained together. The results obtained in this study are expected to be used as an important basis for the further development of FDU.

• Journal of the military operations research society of Korea
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• v.23 no.2
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• pp.85-102
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• 1997

There have been several research efforts to support interoperability among multiple databases. In integrating multiple databases, we must resolve schema conflicts due to the heterogeneity in databases. To resolve these conflicts, not only meta-data for database schemas but also general knowledge expressing the real world meanings associated with the database schemas are required. This paper presents a uniform representation method for relational schema and general knowledge base that is composed, among other things, of concept hierarchy and thematic roles in relationship, using the knowledge representation language Lk. This representation method has a flexible descriptive power which facilitates concepts to be expressed at different levels of granularity and can describe knowledge expressed in Lk are used for input of the next step, such as conflict resolution and query processing of multiple database.

• Journal of the Korea Institute of Military Science and Technology
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• v.14 no.1
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• pp.55-61
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• 2011

This paper presents bubble wake measurement results generated by the planing hull. The bubble was generated by SNAME TMB model(No. 4876) with hard chine at the CWC(Circulating Water Channel). ABS(Acoustic Bubble Spectrometer) was used to measure bubble wake measurement. The manufactured model is one meter in length and uniform velocity to generate the bubble at CWC is 3m/s, relatively higher speed than conventional hull form. Measurements were performed successfully and measured results show well the general characteristics of bubble wake generated by planing hull. Furthermore, experimental equations are proposed for the practical use.

• Journal of the Korea Institute of Military Science and Technology
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• v.3 no.1
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• pp.155-163
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• 2000

A general characterization procedure based on the extraction of a 2n-port admittance matrix corresponding to n uniform coupled lines on the multi-layered substrate using the Finite-Difference Time-Domain (FDTD) technique is presented. The frequency-dependent normal mode parameters are obtained from the 2n-port admittance matrix, which in turn provides the frequency-dependent distributed inductance and capacitance matrices. To illustrate the technique, several practical coupled line structures on multi-layered substrate, including a three-line structure, have been simulated. It is shown that the FDTD based time domain characterization procedure is an excellent broadband simulation tool for the design of multiconductor coupled lines on multilayered PCBs as well as thick or thin hybrid structures.