Soongsil University Research Articles

LTE-D2D 차량 네트워크에서 정보 전달 방법

Current IEEE 802.11p which is suggested for vehicle to vehicle communication supports one hop communication. Thus, it has a limitation to carry out efficient data dissemination. In this thesis, we suggest LTE-D2D based vehicle network to provide efficient data dissemination in the vehicle environment. In this network architecture, we use name based message with IP packet options and we put the intermediate vehicle node called ‘super vehicle node’ and each normal vehicle node in the cell requests data to the super vehicle node. The super vehicle node responses data to the normal vehicle node. Performance analysis is based mathematical modeling. We compare LTE cellular network to LTE-D2D based vehicle network about throughput according to packet delivery time. ※ 본 연구는 미래창조과학부 및 정보통신산업진흥원의 IT융합 고급인력과정 지원사업의 연구결과로 수행되었음 (NIPA-2014-H040114-1005) First Author : Soongsil University, School of EE, adgirlyh@dcn.ssu.ac.kr, 학생회원 ° Corresponding Author : Soongsil University, Schoo of EE younghan@ssu.ac.kr, 종신회원 논문번호:KICS2014-12-492, Received December 16, 2014; Revised March 13, 2015; Accepted March 13, 2015 I. 서 론 최근 사물 간 통신에 대한 관심이 늘어나면서 이에 대한 응용으로 차량 간 통신에 대한 연구도 활발히 진 행되고 있다. 따라서 이제 차량은 단순히 이동 수단 기능만이 아닌 안전과 오락을 위한 정보 제공의 기능 까지 담당하게 되었다. 이에 따라 앞으로 차량 통신에 서 발생되는 트래픽 량이 더욱 증가할 전망이다. 늘어 나는 트래픽은 기지국에 많은 부하를 가져올 수 있기 때문에 이를 효과적으로 관리하기 위한 차량 네트워 크 내 정보 전달 방법에 대한 연구가 필요하다. 차량 네트워크 기술은 VANET(Vehicular Ad-hoc Networks)이라고 한다. VANET 기술은 IEEE 802.11a/g 기술을 기반으로 하며 현재 IEEE 802.11p 기술을 표준으로 한다. 따라서 차량 네트워크에 대한 많은 제안들은 802.11p를 사용하여 한 홉 전송을 통 논문 / LTE-D2D 차량 네트워크에서 정보 전달 방법 603 한 차량과 차량 간 통신을 수행한다. 하지만 IEEE 802.11p를 사용하는 VANET에서는 한 홉 전송으로 인해 정보의 전송 범위가 한정적이다. 또한 무선 링크 를 통해 동적으로 움직이는 차량 간 통신 환경에 맞게 빠른 속도를 지원하기 위해 인증 절차를 생략하여 보 안상에 문제가 있을 수 있다 . 본 논문에서는 근거리 통신 기술 중 LTE-D2D 기 술을 사용하여 기존 LTE 기지국과의 연동을 통해 넓 은 커버리지를 제공할 수 있는 차량 네트워크 구조를 제안한다. 또한 차량 네트워크에서 효율적인 정보 전 달을 위해 버스, 화물차와 같은 중간 차량 노드의 역 할을 추가하였다. 이를 통해 일반적으로 기지국을 거 쳐 LTE 코어망까지 정보를 요청하고 응답받던 메시 지 수행 과정을 중간 차량 노드가 일부 담당할 수 있 도록 설정하였다. 전송되는 메시지의 형태는 기존 IP 패킷 옵션을 지닌 이름 기반의 정보 메시지를 사용하 여 자연재해와 같이 통신망이 끊어진 긴급 상황에서 도 효과적인 정보 전달이 가능하도록 설계하였다. 본 논문의 2장에서는 제안한 네트워크 구조와 관련 된 연구로 VANET의 개념과 VANET에서 사용되는 근거리 통신 기술인 802.11p와 LTE-D2D, 정보 전달 과 관련된 ICN 기술에 대해 설명하고 3장에서는 LTE-D2D 차량 네트워크에서 정보 전달 방법에 대해 제안한다. 4장에서는 기존 LTE 셀룰러 네트워크와 LTE-D2D 차량 네트워크에서의 데이터 처리율 비교 를 통해 제안한 방법의 성능을 분석한다. 끝으로 5장 에서 결론을 맺는다.

융복합 전자정부 서비스를 위한 전자정부 표준프레임워크 기반 시큐어코딩 점검 시스템 설계 및 개발

Abstract Recently computer, smart phone, medical devices, etc has become used in a variety of environments as the application fields of IT products have become diversification. Attack case of abuse of software security vulnerabilities is on the increase as the application fields of software have become diversification. Accordingly, secure coding program is of a varied but history management, updating, API module to be vulnerable to attack. Thus, this paper proposed a materialization of CMS linked system to enable check the vulnerability of the source code to content unit for secure software development, configuration management system that interwork on the transmission module. Implemented an efficient coding system secure way that departmentalized by the function of the program and by analyzing and applying secure coding standards. Key Words : Software vulnerability, Secure-Coding, Convergence E-Government Service, E-Government Standard Framework, Hybrid Analysis, OWASP * This work was supported by the ICT R&D program of MSIP/IITP [R0112-14-1061, The analysis technology of a vulnerability on an open-source software, and the development of Platform] and the Business for Academic-industrial Cooperative establishments funded Korea Small and Medium Business Administration [Grants No. C0221528]Received 16 January 2015, Revised 20 February 2015Accepted 20 March 2015Corresponding Author: Moon seog Jun(Soongsil University) Email: mjun@ssu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

상호작용과 몰입 향상을 위한 홀로그램과 햅틱 환경 기반의 동작 인터페이스

ABSTRACT This paper proposes a user interface for enhancing immersiveness and usability by combining hologram and haptic device with common Leap Motion. While Leap Motion delivers physical motion of user hand to control virtual environment, it is limited to handle virtual hands on screen and interact with virtual environment in one way. In our system, hologram is coupled with Leap Motion to improve user immersiveness by arranging real and virtual hands in the same place. Moreover, we provide a interaction prototype of sense by designing a haptic device to convey touch sense in virtual environment to user's hand.Keywords : Gesture Recognition(동작인식), Hologram(홀로그램), Haptics(햅틱), User Interaction(사용자 상호작용), Immersion(몰입감) Received: Dec. 22, 2014 Revised: Jan. 27, 2015Accepted: Feb. 11, 2015Corresponding Author: Jinho Park(Soongsil University)E-mail: c2alpha@ssu.ac.krISSN: 1598-4540 / eISSN: 2287-8211Ⓒ The Korea Game Society. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

LTE-Advanced에서 단말간 직접 통신을 위한 영역 정보 기반 자원할당 및 전력 제어 기법

In this paper, we considered the scenario that one cellular link and muti-D2D links share the same frequency resource which can improve the spectrum efficiency during uplink communication in LTE (Long Term Evolution)-Advanced network. In order to reduce the interference caused to the D2D users, we set DME (Discovery and Management Entity) which can send the area information to eNB(evolved Node B). We proposed a resource allocation scheme by using these assistant devices to reduce the interference that CUE (Cellular User Equipment) causes to DUE Rx (D2D UE Receiver). Basing on the area information, in order to mitigate the interference among the D2D pairs which share the same frequency resource, a power control scheme has been proposed. The simulation results prove that by using the DMEs, the proposed schemes improve the stability of D2D communication and bring the highest performance of the communication system when comparing to the other different schemes. 논문 15-40-01-05 The Journal of Korean Institute of Communications and Information Sciences '15-01 Vol.40 No.01 http://dx.doi.org/10.7840/kics.2015.40.1.32 32 ※ 본 연구는 중소기업청에서 지원하는 2014년도 산학연협력 기술개발사업 (C022124)과 정부(교육부)의 지원으로 한국연구재단의 기초 연구사업 (No. 2013R1A1A2059500)의 연구수행으로 인한 결과임. First Author : School of Electronic Engineering, Soongsil University, hyanglee@ssu.ac.kr, 학생회원 ° Corresponding Author : School of Electronic Engineering, Soongsil University, yashin@ssu.ac.kr, 종신회원 * School of Electronic Engineering, Soongsil University, osshin@ssu.ac.kr, 종신회원 논문번호:KICS2014-08-312, Received August 19, 2014; Revised December 3, 2014; Accepted January 8, 2015 논문 / LTE-Advanced에서 단말간 직접 통신을 위한 영역 정보 기반 자원할당 및 전력 제어 기법 33 Communication phase Interference senario

Impact of Nurse Staffing Level and Oral Care on Hospital Acquired Pneumonia in Long-term Care Hospitals

Impact of Nurse Staffing Level and Oral Care on Hospital Acquired Pneumonia in Long-term Care Hospitals Chae, Jung Mi · Song, Hyunjong · Kang, Gunseog · Lee, Ji Yun Health Insurance Review & Assessment Research Department Department of Health Policy and Management, Sangji University Department of Statistics and Actuarial Science, Soongsil University Department of Nursing, Kangwon National University

깊이 카메라와 SVM을 이용한 수화 인식 시스템

In this paper, we propose a sign language recognition system using SVM and depth camera. Especially, we focus on the Korean sign language. For the sign language system, we suggest two methods, one in hand feature extraction stage and the other in recognition stage. Hand features are consisted of the number of fingers, finger length, radius of palm, and direction of the hand. To extract hand features, we use Distance Transform and make hand skeleton. This method is more accurate than a traditional method which uses contours. To recognize hand posture, we develop the decision tree with the hand features. For ∙제1저자 : 김기상 ∙교신저자 : 최형일 ∙투고일 : 2014. 9. 19, 심사일 : 2014. 9. 29, 게재확정일 : 2014. 10 28 * 숭실대학교 미디어학과(School of Media, Soongsil University) ※ 본 연구는 서울시 산학연 협력사업(SS110013)과 2013년도 정부(미래창조과학부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임 (No.2013R1A1A2012012) 64 Journal of The Korea Society of Computer and Information November 2014 more accuracy, we use SVM to determine the threshold value in the decision tree. In the experimental results, we show that the suggested method is more accurate and faster when extracting hand features a recognizing hand postures. ▸

모바일 소셜 네트워크 게임의 특성이 온라인 구전에 미치는 영향에 관한 연구

본 연구는 기존에 존재하는 다양한 형태의 게임에 대한 선행 연구를 기반으로 모빌리티와 소셜 요인을 부각시킨 새로운 게임형태인 모바일 소셜 네트워크 게임에 대해 연구하고 기존의 게임과는 차별화된 모바일 소셜 네트워크 게임의 특성이 게임 유저들의 온라인 구전에 미치는 영향에 대해 분석하였다. 그 결과 사용자 간의 상호적 관계, 시간과 장소의 구애를 받지 않고 지속적인 접속이 필요 없는 특성들이 몰입을 증가 시킨다는 사실을 밝혀냈다. 하지만 미디어와 상호작용 과정 속에서 개인이 지각하는 사회적 실재감과 비동기성은 만족에 영향을 미치지 않은 것으로 나타났다. 또한 이러한 몰입은 만족보다 온라인 구전에 많은 영향을 미치는 것으로 나타났고 이러한 연구결과는 향후 국내 모바일 소셜 네트워크 게임 산업의 지속적인 발전에 기여할 수 있는 참고자료가 될 수 있을 것이라고 기대한다.

한류 확산에 따른 게임의 확장 가능성 연구

본 논문은 차기 한류를 주도할 수 있는 문화콘텐츠로서 게임의 확장 가능성을 타진해 보았다. 게임이 한류문화상품으로 성장하고 확산되기 위해서는 한류게임의 지속성을 유지할 수 있는 새로운 전략을 세우고, 한류게임의 친근성을 확대시켜 호감도를 극대화시키는 스토리텔링을 계획해야 된다는 사실을 인식할 수 있었다. 더불어서 글로벌 시장에서 한국문화를 대변할 수 있는 한국형 문화게임을 개발하고, 현지화전략을 세움과 동시에 정부차원의 종합적인 지원체계를 갖추는 일이 급선무라는 사실을 파악할 수 있었다.

깊이영상에서 효율적인 핸드 마우스를 위한 3D 포인팅

This paper proposes a 3D pointing interface that is designed for the efficient application of a hand mouse. The proposed method uses depth images to secure high-quality results even in response to changes in lighting and environmental conditions and uses the normal vector of the palm of the hand to perform 3D pointing. First, the hand region is detected and tracked using the existing conventional method; based on the information thus obtained, the region of the palm is predicted and the region of interest is obtained. Once the region of interest has been identified, this region is approximated by the plane equation and the normal vector is extracted. Next, to ensure stable control, interpolation is performed using the extracted normal vector and the ∙제1저자 : 주성일 ∙교신저자 : 최형일 ∙투고일 : 2014. 8. 11, 심사일 : 2014. 8. 18, 게재확정일 : 2014. 8. 24. * 숭실대학교 글로벌미디어학과(Dept. of Global Media, Soongsil University) ※이 논문은 서울시 산학연 협력사업(SS110013)의 지원을 받아 수행된 연구임. 36 Journal of The Korea Society of Computer and Information August 2014 intersection point is detected. For stability and efficiency, the dynamic weight using the sigmoid function is applied to the above detected intersection point, and finally, this is converted into the 2D coordinate system. This paper explains the methods of detecting the region of interest and the direction vector and proposes a method of interpolating and applying the dynamic weight in order to stabilize control. Lastly, qualitative and quantitative analyses are performed on the proposed 3D pointing method to verify its ability to deliver stable control. ▸

Simple Preparation of Anatase Titanium Dioxide Nanoparticles by Heating Titanium-Organic Frameworks

Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, and Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea *E-mail: crpark@snu.ac.kr Institute for Integrative Basic Sciences, Department of Chemistry, Soongsil University, Seoul 156-743, Korea *E-mail: jaheon@ssu.ac.kr Received January 9, 2014, Accepted April 30, 2014

법령 내 별표 서식에 대한 개정지시문 자동 생성 시스템의 설계 및 구현

Legislation are social norms that give directly or indirectly, huge impact on the social or corporate, personal problems, unlike a normal document. Also, over time it has a feature constantly changing by the laws enactment and amendment, repealed. The amendment statement ∙제1저자 : 조성수 ∙교신저자 : 김명호 ∙투고일 : 2014. 02. 13, 심사일 : 2014. 03. 03, 게재확정일 : 2014. 04. 08. * 숭실대학교 대학원 컴퓨터학과 (Deptartment of Computer Science and Engineering, Soongsil University) ** 숭실대학교 컴퓨터학부 (School of Computer Science and Engineering, Soongsil University) ※ 기 논문은 숭실대학교 대학원 석사학위 논문[1]의 요약임을 명기한다. 112 Journal of The Korea Society of Computer and Information April 2014 automatic generated system is used for purpose of proclamation to those. However, existing system is able to generate amendment statement just text body of law how compare and analyze the current legislation and amendment legislation. However, actual legislation to be created attached table of the table form in complex structure besides simple text form as body text. In this paper, we additional implement attached table processing to existing the amendment statement automatic generated system that containing the table does not handle attached table. We were analyse to the amendment statement generated grammar and table structure in attached table of the legislation for processing to attached table. Also proposed a method to compare attached table in the table. So, it is enable the automatic generation with amendment statement which various forms of legislation the documents. ▸

감정규칙을 사용한 게임 캐릭터 분석

ABSTRACT Emotion is one of the elements of the game that will help the user interaction. The way to express the emotions and personality of the character was taken into account severity of reaction to action or a specific graphics in the game so far. However recently structured for the interest in the study of emotion increases and to utilize a variety of feelings in the game is needed. In the field of autonomous agents, studies of the possibility of the use of emotion, defined 12 different emotion rules. In this paper, we dilate by defining the terms used in the game rules of emotion made ​the rules of the emotion of the game. And, we analyzed emotions in actual game character used Game Emotions Rule. As a result, it was possible to see the rules of the game feeling separate from that being used for game genre similar.Keywords : Game(게임), Emotion Rule(감정규칙), Character(캐릭터) Received: Dec. 16, 2013 Revised: Feb. 20, 2014Accepted: Mar. 10, 2014Corresponding Author: Il-Ju Ko(Soong-sil University)E-mail: andy1026@gmail.comISSN: 1598-4540 / eISSN: 2287-8211Ⓒ The Korea Game Society. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Transformation of classroom spaces: traditional versus active learning classroom in colleges

Educational environment influences students’ learning attitudes, and the classroom conveys the educational philosophy. The traditional college classroom design is based on the educational space that first appeared in medieval universities. Since then classrooms have not changed except in their size. In an attempt to develop a different perspective of educational environment, a new design of classroom, the active learning classroom (ALC), was established at SoongSil University in Korea. Two questionnaire surveys were conducted for diagnosing the educational effects of students’ learning in the ALC and comparing the results with those obtained regarding the traditional classroom. The result proved the existence of a ‘golden zone’ and a ‘shadow zone’ in the traditional classroom, which discriminate students’ learning experiences depending on seating positions. On the contrary, the ALC did not produce such positional discrimination. Students perceived the ALC environment as more inspirational, especially in regards to active class participation. Students with more emphasis on academic achievement showed greater tendency to share information and to create new ideas in the ALC. However, in the traditional classroom setting, only students with high GPAs were more motivated to learn while the gap in learning attitudes was offset in the ALC setting. In-depth discussions about research findings were undertaken and four suggestions were provided in support of school administrators and relevant institutional personnel, faculty members, and researchers for future utilization of the ALC.

A Comparison between Asia-Pacific Region Criteria and Entropy Model Criteria about Body Mass Index of Elderly Females Using Morbidity of Chronic Disease

School of Computer Information, Kyungpook National University, Sangju, Korea Department of Microbiology, Gyeongsang National University Medical School, Jinju, Korea Department of Biomedical Laboratory Science, Daegu Health College, Daegu, Korea Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea Department of Food Science & Nutrition, Kyungpook National University, Daegu, Korea Department of Food & Nutrition, Gyeongsang National University, Jinju, Korea

Editor's Introduction to This Issue

This issue features a number of review articles that cover many topics, from the fundamental aspect of our genome and transcriptome to the application of genomics for understanding diseases. Profs. Goh and Choi at Yale University, USA, review an emerging technology called exome sequencing and its application in identifying disease-causing variants. While it focuses mainly on inherited diseases, complex diseases are also touched upon, and the common challenges ahead are discussed. Prof. Ikegawa at RIKEN, Japan, gives a historical overview of genome-wide association studies (GWASs) and discusses their future prospects in a narrative tone. Prof. Kyong Soo Park's group at Seoul National University, Korea, gives a more specific account of the application of GWASs in assessing genetic risk factors of gestational diabetes. My group at Soongsil University, Korea, also contributes a review on expression quantitative trait loci and their role in predisposing disease susceptibility. Recently, transposable elements (TEs) have been attracting attention, as they are not 'junk' anymore, and play important roles in gene regulation and genomic evolution. Prof. Kyudong Han's group at Dankook University, Korea, focuses on a few types of TEs that are specific to primate genomes. Besides these review articles, we have several interesting original articles and application notes, as well as a preliminary research communication. For example, Prof. Taesung Park's group at Seoul National University, Korea, reports a novel analysis of gene-gene interactions in GWAS data using a network graph method. While calculating the gene-gene interactions is a difficult task, interpreting such results is an even more daunting task. Their new method facilitates such a process, as demonstrated with success in its application to the study of body mass index. Genomics & Informatics is now available in PubMed Central (PMC), a full-text service, and PubMed, PMC's sister abstract service. We expect more broad international visibility of Genomics & Informatics through these services. Our next immediate goal is the coverage by SCOPUS, one of the renowned citation databases. We plan to apply for inclusion into SCOPUS in the middle of 2013.I hope you enjoy this year's final issue of Genomics & Informatics your continued support is greatly appreciated.

Editor's Introduction to This Issue

This issue features a number of review articles that cover many topics, from the fundamental aspect of our genome and transcriptome to the application of genomics for understanding diseases. Profs. Goh and Choi at Yale University, USA, review an emerging technology called exome sequencing and its application in identifying disease-causing variants. While it focuses mainly on inherited diseases, complex diseases are also touched upon, and the common challenges ahead are discussed. Prof. Ikegawa at RIKEN, Japan, gives a historical overview of genome-wide association studies (GWASs) and discusses their future prospects in a narrative tone. Prof. Kyong Soo Park's group at Seoul National University, Korea, gives a more specific account of the application of GWASs in assessing genetic risk factors of gestational diabetes. My group at Soongsil University, Korea, also contributes a review on expression quantitative trait loci and their role in predisposing disease susceptibility. Recently, transposable elements (TEs) have been attracting attention, as they are not 'junk' anymore, and play important roles in gene regulation and genomic evolution. Prof. Kyudong Han's group at Dankook University, Korea, focuses on a few types of TEs that are specific to primate genomes. Besides these review articles, we have several interesting original articles and application notes, as well as a preliminary research communication. For example, Prof. Taesung Park's group at Seoul National University, Korea, reports a novel analysis of gene-gene interactions in GWAS data using a network graph method. While calculating the gene-gene interactions is a difficult task, interpreting such results is an even more daunting task. Their new method facilitates such a process, as demonstrated with success in its application to the study of body mass index. Genomics & Informatics is now available in PubMed Central (PMC), a full-text service, and PubMed, PMC's sister abstract service. We expect more broad international visibility of Genomics & Informatics through these services. Our next immediate goal is the coverage by SCOPUS, one of the renowned citation databases. We plan to apply for inclusion into SCOPUS in the middle of 2013.I hope you enjoy this year's final issue of Genomics & Informatics your continued support is greatly appreciated.

Optimal design of 6-DOF eclipse mechanism based on task-oriented workspace – ADDENDUM

In the article1 the author omitted the following from the acknowledgement section:This work was supported by the Soongsil University Research Fund of 2012.

An Unprecedented Self-Assembled Porous Framework Constructed by Intermolecular S…S Contacts

Department of Chemistry, Soongsil University, Seoul 156-743, KoreaReceived April 30, 2012, Accepted May 8, 2012Key Words : ET, Ferrocene, Self-assembly, Porous fra mework, Intermolecular S···S contact In contrast to the polar hydrogen bond donor-acceptorpairs, thiol-containing moieties are not regarded as goodhydrogen bond tectons due to their insufficient polarity.

Analyzing Korean TV Commercials during Prime Time based on Cultural Background

Abstract This study investigated Korean TV advertising‘s creative strategy and trend. To achieve the goal, we conducted content analysis for prime time TV advertising messages (KBS, MBC, SBS). We found that Korean TV advertising contents showed more direct messages than indirect messages, much relationship between ads messages and product, more brand in advertisements, little humor, relatively many celebrities in ads. and much importance on the reputation of the firm. The findings will be a significant source regarding promotion strategy for global company who plans to enter into Korean market. Key Words : Korean TV commercials, Localized Strategy, Cultural Dimensions, Creative Advertising Strategy * Principal Researcher, Dept. of Global Commerce, Soongsil University ** Corresponding Author, Dept. of Statistic & Actuarial Science, Soongsil University논문접수: 2012년 10월 11일, 1차 수정을 거쳐, 심사완료: 2012년 11월 10일 1. Introduction The markets’ globalization is apparently reality. Many of the top 100 brands have worldwide presence in more than 100 countries including Korea [11]. Global brands, however, have been struggled to represent tasty for each country in advertising, because the markets are not homeogenous. Accordingly, successful global brands need to develop a localized market strategy. Even global brands’ overheating competition accelerates the needs of localized advertising strategy for local consumer. Initiating or creating a localized advertising strategy, however, is not easy at all because of transformation of local culture and consumer culture change. Korea is one of leading countries in technological development and international trade in the world, and significantly influences East Asia’s culture and economic. Korea has benefited from globalization when the Korean state modulated globalization well and made

Researchers create nano-material with “ultimate porosity”

Chemists in the USA at the University of California, Los Angeles (UCLA) and in South Korea at Soongsil University say they have created a nano-material with the “ultimate porosity” – achieving world records for both porosity and carbon dioxide storage capacity in an important class of materials known as metal–organic frameworks (MOFs).