• Proceedings of the Korea Electromagnetic Engineering Society Conference
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• 2000.11a
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• pp.225-228
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• 2000

In this paper, the design for a low noise amplifier with the EM simulation is presented. The ATF36077 pHEMT device is applied to design LNA for U-NII frequency band (5 GHz ～ 6 GHz). The matching networks have been designed by the only open ended stub in order to reduce parasitic effects generated from a via structure. Through EM simulator, the simulation result shows that the linear gain (@5.5 GHz) is over 10 dB, input return loss and output return loss (@ 5.5 GHz) are a below 10 dB respectively, and the 3rd order intercept point is about 17 dBm.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.2
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• pp.181-190
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• 2014

The optimized flight path planning which is appropriate for UAV operation with high performance and multiplex sensors is required for efficient ISR missions. Furthermore, a mission visualization tool is necessary for the assessment of MoE(Measures of Effectiveness) prior to mission operation and the urgent tactical decision in peace time and wartime. A mission visualization and analysis tool was developed by combining STK and MATLAB, whose tool was used for UAV ISR mission analyses in this study. In this mission analysis tool, obstacle avoidance and FoM(Figure of Merit) analysis algorithms were applied to enable the optimized mission planning.

• International Journal of Aeronautical and Space Sciences
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• v.14 no.3
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• pp.264-271
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• 2013

A method of multiple transport-aircraft mission modeling is proposed in order to improve the efficiency of evaluating and optimizing pre-mission plans. To deal with the challenge of multiple transport-aircraft missions, the object-oriented modeling method is utilized. The elements of the mission are decomposed into objects and businesses, And the major mission objects and their important properties are summarized. A complex mission can be broken down into basic business modules such as the ground section and flight section. The business models of loading and fueling services in the ground section are described. The business model of the flight section is composed of an air route and flight profile with the flight equation and the fuel consumption model. The logical relationship of objects and business modules is introduced. The architecture of the simulation system, which includes a database, computation module, graphical user interface (GUI) module, and a result analysis module, is established. A sample case that includes two different plans is provided to verify the model's ability to achieve multi-aircraft composite mission simulation.

• The Critical Review of Religion and Culture
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• no.29
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• pp.134-167
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• 2016

This paper aims at exploring the characteristics and meanings of religious freedom controversy surrounding religious education, with special reference to proselytism, in protestant mission school in recent Korea. Most of protestant mission schools have been providing students compulsory religion class and chapel service in the name of religious education. According to the school authorities, religious education should be provided for the realization of founding philosophy, and they say that mission school has the right to religious education. On the contrary, many non-christian students argue that their religious liberty is seriously violated by required religious education especially compulsory chapel worship. So serious conflicts broke between mission school authorities and students. Supreme Court decided that Soongsil University has the right to maintain compulsory chapel service, ruling that Daegwang High School should not maintain required chapel worship. It seems that Supreme Court gave different decisions to high school and university respectively, considering the differences between high school and university in application for admission to a school, students' critical consciousness, school's autonomous rights, etc. However, these precedents are being challenged by many peoples and groups. There are three agents which are involved in religious freedom controversy in mission school. The first are mission school authorities supported by religious groups, the second government supported by political parties, and the third mission school students guided by NGO. Among them protestant groups are playing the major role in making religious freedom problems in mission school. Protestant groups try to convert mission school students to protestantism by compulsory chapel service and religion class. Such a protestant proselytism becomes a cause of oppressing students' human rights and religious liberty. In this situation government has a responsibility to protect the students' rights to religious freedom. But government seldom impose sanctions on the protestant mission schools' compulsory programs. The reason why government does not restrict mission school's unlawful religious education is because protestant groups have strong influence in voting. Eventually civil movements organizations involved in religious freedom controversy for the sake of students's human rights. In conclusion, the assailment is protestant proselytism, the accessory is government, the victim is students in the religious education in mission school in recent Korea.

• Journal of the Korean Institute of Educational Facilities
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• v.11 no.6
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• pp.4-12
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• 2004

This research has a purpose to review architectural education in the early modern times in Korea. Although the mission school had some programs on basic woodworks, which were for architectural technicians afterwards, it has not been paid attention yet. Missionaries recognized the problematic situation that the most western-styled building all over Korea were built by Chinese or Japanese technicians, and they made up the minds and tried to train Korean apprentices. This training program couldn't be developed to the authorized curriculum, and moreover was limited that it was concentrated on just woodwork training; however, the missionaries made their best endeavor to overcome the deficiency of skillful technicians. At the woodwork department of the mission school there were occasionally effective programs, for example, a training of drawing or an actual participation at the real construction site. Mission schools could be said to offer the helpful programs for the early education on newly coming architecture.

• The Journal of Korean Medicine
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• v.42 no.4
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• pp.176-184
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• 2021

Objectives: The purpose of this study is to introduce the procedures and methods for mission and vision development at a College of Korean Medicine (CKM), which established its mission and vision using Delphi techniques and big data analysis on various members and stakeholders. Methods: A total of 754 participated in the Delphi survey. A Delphi survey was conducted with professors, students, parents, and alumni stakeholders to establish Daegu Haany University CKM's mission and vision. The data were analyzed through content analysis and big data analysis of keywords. Results: As a result of the study, the most important keywords to be included in the mission and vision were "professionalism" and "morality." Included in the mission were the concepts of "morality" and "professionalism," which were emphasized by the four groups. All surveyed stakeholders regarded "scientific," and "global" as important themes to be included in the vision. Conclusions: The present study confirmed that there were themes commonly prioritized by all stakeholders for college mission and vision, and a difference in demand for educational goals between professors and students was also affirmed. Therefore, institutions of higher learning should develop their mission and vision by appropriately reflecting the needs of the interest groups.

• Journal of The Korean Astronomical Society
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• v.36 no.3
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• pp.249-260
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• 2003

ASTRO-F is the next generation Japanese infrared space mission of the Institute of Space and Astronautical Science. ASTRO-F will be dedicated to an All Sky Survey in the far-infrared in 4 bands from 50-200microns with 2 additional mid-infrared bands at 9microns and 20microns. This will be the first all sky survey in the infrared since the ground breaking IRAS mission almost 20 years ago and the first ever survey at 170microns. The All Sky Survey should detect 10's of millions of sources in the far-infrared bands most of which will be dusty luminous and ultra-luminous star forming galaxies, with as many as half lying at redshifts greater than unity. In this contribution, the ASTRO-F mission and its objectives are reviewed and many of the mission expectations are discussed.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.45 no.1
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• pp.54-62
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• 2017

For the Earth observation satellite for ISR mission, a satellite constellation can be utilized to observe a specific area periodically and ultimately increase the effectiveness of the mission. The Walker-Delta method was applied to design constellation orbits with four satellites, which could detect abnormal activities in AoI(Area of Interest). To evaluate the effectiveness of the mission, a revisiting time was selected as a key requirement. This paper presents the mission analysis process for four SAR satellites constellation as well as the result of constellation configuration design to meet the requirements. Figure of Merits analysis was performed based on algorithm developed. Finally, it was confirmed that the constellation orbit with four different orbital planes is likely to be appropriate for ISR mission.

• Publications of The Korean Astronomical Society
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• v.30 no.2
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• pp.621-624
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• 2015

We present the current status (as of August 2014) of SPICA (Space Infrared Telescope for Cosmology and Astrophysics), which is a mission optimized for mid- and far-infrared astronomy with a cryogenically cooled 3m-class telescope. SPICA is expected to achieve high spatial resolution and unprecedented sensitivity in the mid- and far-infrared, which will enable us to address a number of key problems in present-day astronomy, ranging from the star-formation history of the universe to the formation of planets. We have carried out the "Risk Mitigation Phase" activity, in which key technologies essential to the realization of the mission have been extensively developed. Consequently, technical risks for the success of the mission have been significantly mitigated. Along with these technical activities, the international collaboration framework of SPICA has been revisited, which resulted in la arger contribution from ESA than that in the original plan. To enable the ESA participation under the new framework, a SPICA proposal to ESA is under consideration as a medium-class mission under the framework of the ESA Cosmic Vision. The target launch year of SPICA under the new framework is the mid-2020s.

• Journal of Engineering Education Research
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• v.14 no.3
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• pp.15-24
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• 2011

The purpose of this study is to develop the 'Engineering Team Mission Project Education Program and Textbook', which is improved creativity and creative problem for Juniors(middle school students) that is in the growth stage to become the leading role in future society. This can be applied the creative experience activities time of revised curriculum in 2009 being implemented to secondary education by 2011. The results of this study are as follows. The formation of Team Mission Project Education Program is the big field 2 project, lower field 8 module and 38 total lessons. This education program has secured the validity of the SME(Subject Matter Expert) expert conference. Actually, by putting the education program and textbook to the invention talent class formed by middle school students and by normally analyzing, it has been analyzed as very satisfying result. Therefore, the "Engineering Team Mission Project Education Program and Textbook" can be provided as a practical education course of new talent training and engineering talent model of the nation's knowledge property education. And it can perform as an education program using usefully in the creative experience activity education course in middle class education stage. Also, it is concluded to become the basis of engineering design education's high grade education and department of engineering's creative engineering.