This study explores ways to enhance pre-service English teachers’ curriculum development competency through collaboration with in-service teachers. To this end, a course was designed to incorporate three key competencies of curriculum development (curriculum literacy, curriculum development competency, and curriculum evaluation competency) while adopting task-based language teaching and collaboration with inservice teachers as teaching methods. The designed course was implemented in a university for validation and revision. Ten pre-service English teachers participated in the course, where they developed English curricula in response to requests from three in-service middle school English teachers. A questionnaire survey conducted at the end of the semester with both pre-service and in-service teachers revealed that the proposed course model adequately worked to improve the three key competencies of English curriculum development among pre-service teachers. Further, collaboration with inservice teachers was found to enhance pre-service teachers’ responsibility and active engagement in curriculum development, while also providing practical assistance and creative teaching ideas to in-service teachers.

The 4th Industrial Revolution and the continuous development of Science and Technology have also required a speedy business promotion method in the defense industry. Advanced countries including the United States are already boldly innovating the existing high-cost and long-term acquisition system with the highest priority in weapons development to cope with the military rise of Russia and China. The Ministry of National Defense and the Defense Acquisition Program Administration have also recently introduced a quick acquisition system and are applying it to business promotion. In addition, some small-scale projects and weapons systems are being reorganized so that they can be managed by the units demanding them. After an organizational diagnosis of the Project Acquisition Group by the Ministry of National Defense in 2020, it has been reassigned as a subordinate unit of the Army Logistics Command from a direct unit managed by the Army HQ. As a result, problems such as work conflict or redundancy have been identified. In addition, a system has been implemented to shorten the acquisition period by applying a rapid acquisition program in the field of weapons systems by benchmarking the rapid acquisition program of advanced countries. The force support system project process will also need to introduce such a quick acquisition system. In addition, the Ministry of National Defense is considering ways to delegate some weapon systems to each military, which will then carry out tasks ranging from requirements determination to project management. Accordingly, it is now time to expand the organization for the management of the Army's weapons system acquisition project. Therefore, in this paper, the Army Project Acquisition Group was analyzed on its organization, acquisition procedures, and cooperation systems, with presentations of development plans for each field.

본 논문에서는 대규모 실시간 매칭의 생존 게임에서 플레이를 위한 유저들의 소셜 관계에 대해 연구한다. 특 히 “사전 팀 구성”을 통한 자의적인 팀 구성이 어떤 방식으로 유저들을 연결하는 지 연구하고자 한다. 다수 의 사람 간 집단 역학에서 나타나는 특성이나 패턴에 대한 조사를 중심으로 하였으며, 개인의 특성은 보조적 인 수단으로만 사용된다. 이번 연구에서는 게임을 플레이하는 유저들의 익명화 된 대규모 데이터를 활용하며 이에 대한 간소화된 집계 방법을 제안한다. 데이터 세트에는 사전 팀 구성에 관한 11,259만 줄의 속성이 포 함되어 있으며, 데이터에서 우리는 250만개의 노드와 1,182만개의 무방향 에지가 있는 협업 네트워크를 구성 하여 대규모 게임 내 협동 네트워크를 만듭니다. 연결 정도, 경로 길이, 클러스터링 및 소속 하위 컴포넌트의 크기 등 네트워크에 관한 수치를 통해 게임내 소셜 활동에 대한 이해를 높이고자 한다. 본 논문에서는 다음 의 두가지 특성을 중심으로 결론을 제시한다. 첫째, 네트워크 내에는 대규모로 연결된 2개(전체의 44% 및 2%)와 나머지의 파편화된 하위 컴포넌트로 구성 되어있다. 이 대규모 컴포넌트 중 작은 쪽은 한국 유저로만 구성되어 있다. 둘째, 컴포넌트 크기 별 평균 연결 거리와 군집화 계수, k-core를 확인함으로써 기타 다른 네 트워크 대비 이웃 간 연결이 강하면서 전체적으로는 비교적 멀리 떨어져 있음을 확인한다.

본 연구는 백남준의 위성아트 프로젝트 시리즈의 첫 방송인 1984년 <굿모닝 미스터 오웰> 에서 예술가, 미술관, 방송국 등 다양한 행위자들 사이에서 실질적인 협력관계로 끌어내는 과정 에서 그의 ‘쌍방향 소통’의 개념에 대하여 실증적인 성찰을 시도한다. 백남준은 ‘TV’를 예술 매체 로 활용한 시점인 1960년대부터 ‘쌍방향 소통’의 가능성을 고민해 왔고, 디렉터이자 플레이어로 서 이러한 개념을 제시하는 퍼포먼스를 이어왔다. 이후 위성방송 시스템이 상용화로 그 개념을 실천할 수 있는 기술적 환경이 조성되면서, 그는 스스로 플레이어 자리에서 내려와 1984년부터 2년을 주기로 위성아트 프로젝트 3부작을 제작하였다. 이러한 그의 탐구와 실험들이 위성아트 프로젝트에서 다층적 협력관계를 구축하는 논리적 기반이 되었음을 <굿모닝 미스터 오웰>을 중 심으로 살펴보고자 한다.

This study explored if and to what extent foreign language high school students would benefit from participating in a school English drama contest in terms of English proficiency, affective attitudes, and collaborative competence. For this purpose, questionnaires were constructed to measure students’ perception of their growth in those areas after participating in the contest. Pre- and post-questionnaires were administered to 85 students, and in-depth interviews were conducted with 13 of the survey respondents. In a comparison of the pre- and post-test measures, the study found that the drama contest contributed to reducing students’ anxiety and enhancing their intrinsic motivation. Although pre- and post-test differences in language proficiency and collaborative competence were found to be non-significant, the participants addressed positive aspects of their experience in the contest. For example, they reported that they improved their pronunciation, speaking, and writing skills and that they collaborated and learned from one another by sharing ideas, providing feedback, and exchanging opinions.

최근 디지털 의상으로 제품을 만드는 것이 활성화됨에 따라서 삼차원 공간의 컴퓨터 그래픽을 이용하는 게 임엔진을 및 3D Tool로 샘플을 만들기 시작했다. 이러한 트렌드에 따라서 밴드 기업들은 디지털 의류 모델 을 화상 회의 프로그램을 이용하여 협업하기 시작했다. 하지만 화상 회의에서의 원격화면 공유 기능은 각 공유자의 바탕화면 혹은 각 사용자가 사용하고 있는 데스크탑에 보여지는 화면만을 공유하여 발표화면을 보여주는 기능에 그치고 있어 협업작업에서 필요한 사용자 간의 상호작용을 지원하기에는 부족한 점이 있 다. 본 연구에서는 디지털 의상 협업 작업 시 화상 회의를 사용함에 있어서 불편한 점들을 개선하고 회의를 효율적으로 진행하기 위한 Framework를 제작했다. 프레임워크 제작을 위해 Unity3D 게임엔진과 WebRTC 그 리고 Javascript를 사용하였으며, 중계서버 제작을 위하여 클라우드 AWS 서비스를 사용했다. 시연 결과 화상 회의 참여자들은 스크린에 인터랙션을 할 수 있었으며 따로 프로그램을 설치할 필요가 없었다. 그리고 최대 해상도를 1440p까지 높여 기존의 화상 회의에서의 화질을 더 개선할 수 있었다. 해당 시연 결과를 통하여 기존의 다른 화상 회의 앱과 기능들을 비교하여 제안한 Framework의 효용성을 검증했다.

Recently, the Defense Advanced Research Projects Agency(DARPA) in the United States is studying a new concept of war called Mosaic Warfare, and MUM-T(Manned-Unmanned Teaming) through the division of missions between expensive manned and inexpensive unmanned aircraft is at the center. This study began with the aim of deriving the priority of autonomous functions according to the role of unmanned aerial vehicles in the present and present collaboration that is emerging along with the concept of mosaic warfare. The autonomous function of unmanned aerial vehicles between the presence and absence collaboration may vary in priority depending on the tactical operation of unmanned aerial vehicles, such as air-to-air, air-to-ground, and surveillance and reconnaissance. In this paper, ACE (Air Combat Evaluation), Skyborg, and Longshot, which are recently studied by DARPA, derive the priority of autonomous functions according to air-to-air collaboration, and use AHP analysis. The results of this study are meaningful in that it is possible to recognize the priorities of autonomous functions necessary for unmanned aircraft in order to develop unmanned aerial vehicles according to the priority of autonomous functions and to construct a roadmap for technology implementation. Furthermore, it is believed that the mass production and utilization of unmanned air vehicles will increase if one unmanned air vehicle platform with only essential functions necessary for air-to-air, air-to-air, and surveillance is developed and autonomous functions are expanded in the form of modules according to the tactical operation concept.

Manned-unmanned teaming can be a very promising air-to-air combat tactic since it can maximize the advantage of combining human insight with the robustness of the machine. The rapid advances in artificial intelligence and autonomous control technology will speed up the development of manned-unmanned teaming air-to-air combat system. In this paper, we introduce a manned-unmanned teaming air-to-air combat tactic which is composed of a manned aircraft and an UAV. In this tactic, a manned aircraft equipped with radar is functioning both as a sensor to detect the hostile aircraft and as a controller to direct the UAV to engage the hostile aircraft. The UAV equipped with missiles is functioning as an actor to engage the hostile aircraft. We also developed a combat scenario of executing this tactic where the manned-unmanned teaming is engaging a hostile aircraft. The hostile aircraft is equipped with both missiles and radar. To demonstrate the efficiency of the tactic, we run the simulation of the scenario of the tactic. Using the simulation, we found the optimal formation and maneuver for the manned-unmanned teaming where the manned-unmanned teaming can survive while the hostile aircraft is shot-downed. The result of this study can provide an insight to how manned aircraft can collaborate with UAV to carry out air-to-air combat missions.

Collaborative filtering, one of the most widely used techniques to build recommender systems, is based on the idea that users with similar preferences can help one another find useful items. Credit card user behavior analytics show that most customers hold three or less credit cards without duplicates. This behavior is one of the most influential factors to data sparsity. The ‘cold-start’ problem caused by data sparsity prevents recommender system from providing recommendation properly in the personalized credit card recommendation scenario. We propose a personalized credit card recommender system to address the cold-start problem, using multiple user profiles. The proposed system consists of a training process and an application process using five user profiles. In the training process, the five user profiles are transformed to five user networks based on the cosine similarity, and an integrated user network is derived by weighted sum of each user network. The application process selects k-nearest neighbors (users) from the integrated user network derived in the training process, and recommends three of the most frequently used credit card by the k-nearest neighbors. In order to demonstrate the performance of the proposed system, we conducted experiments with real credit card user data and calculated the F1 Values. The F1 value of the proposed system was compared with that of the existing recommendation techniques. The results show that the proposed system provides better recommendation than the existing techniques. This paper not only contributes to solving the cold start problem that may occur in the personalized credit card recommendation scenario, but also is expected for financial companies to improve customer satisfactions and increase corporate profits by providing recommendation properly.

본 연구는 급변하는 경영환경 속에서 BtoB거래에서의 협업이 중요함에도 불구하고 협업을 구성하는 요소가 불명확하기에 협업Quality라고 명명한 측정도구 개발이 목적이며, 이를 바탕으로 BtoB기업의 조 직성과와의 구조적 관계를 연구한 논문이다. 협업Quality의 측정개발은 Study1, Study2로 구성이 되어있으며, Study1에서는 FGI를 통해 협업 Quality의 측정항목을 개발하고, 전문가 집단의 인터뷰를 통해 협업의 구성요인을 알아냈다. Study2에서 는 측정항목들의 신뢰성과 타당성을 검증하여 4개의 요인으로 도출하였고, 이 요인들을 신뢰, 공유된 목표, 정보공유성, 조직유연성으로 명명하였다. 마지막으로 도출된 요인들과 조직성과와의 관계를 규명하였다. 결과적으로 본 연구의 협업Quality는 BtoB거래에서 공급업체와 구매업체간의 협업을 의미하며, 개발된 측정도구는 향후 협업과 파트너십 연구에 기초자료가 될 것으로 기대된다.