• Korean Journal of Remote Sensing
• /
• v.35 no.5_2
• /
• pp.841-850
• /
• 2019

The purpose of this study is to strengthen the capability of rapid mapping for disaster through improving the positioning accuracy of mapping and fusion of multi-sensing point cloud data derived from Unmanned Aerial Vehicles (UAVs) and disaster investigation vehicle. The positioning accuracy was evaluated for two procedures of drone mapping with Agisoft PhotoScan: 1) general geo-referencing by self-calibration, 2) proposed geo-referencing with optimized camera model by using fixed accurate Interior Orientation Parameters (IOPs) derived from indoor camera calibration test and bundle adjustment. The analysis result of positioning accuracy showed that positioning RMS error was improved 2~3 m to 0.11~0.28 m in horizontal and 2.85 m to 0.45 m in vertical accuracy, respectively. In addition, proposed data fusion approach of multi-sensing point cloud with the constraints of the height showed that the point matching error was greatly reduced under about 0.07 m. Accordingly, our proposed data fusion approach will enable us to generate effectively and timelinessly ortho-imagery and high-resolution three dimensional geographic data for national disaster management in the future.

• KNOM Review
• /
• v.22 no.2
• /
• pp.12-21
• /
• 2019

There is a rapid development of experimental equipment and ICT technology in data-intensive scientific areas, thus, big data of more than exabyte size is being generated. However, the big data transmission technology does not satisfy the needs of the application researchers who utilize it. Various high-performance transmission technologies have been developed based on QoS(Quality of Service), but they also require changes in the clean slate method. On the other hand, ScienceDMZ technologies improve the performance of scientific big data transmission by bypassing the firewall that causes a big problem in transmission performance. In addition, it is possible to implement without changing the existing network. In this paper, we built ScienceDMZ in an international long-distance environment based on KREONET(Korea Research Environment Open NETwork), and we verified the performance. We also introduced how GPU platform could be linked in a distributed ScienceDMZ environment.

• Journal of Scientific & Technological Knowledge Infrastructure
• /
• s.9
• /
• pp.20-25
• /
• 2002

정보공유를 위한 표준화된 데이터 관리 및 이들에 대한 관리 메카니즘를 지원하기 위한 작업의 일환으로 ISO/IEC JTC1 WG2 - 데이터 관리 및 교환(Data Management and Interchange)에서는 데이터 공유 및 교환을 위한 근본적인 해결방안으로 메타데이터 레지스트리(Metadata Registry : MdR)에 대한 표준화를 진행하고 있다.

• Journal of Scientific & Technological Knowledge Infrastructure
• /
• s.9
• /
• pp.52-59
• /
• 2002

현재 우리가 사용하고 있는 Internet Protocol인 TCP/IP(Transmission Control Protocol/Internet Protocol)중 어드레스 IPv4 10진수 체계가 16진수 체계로 변화된 것이 바로 IPv6 Address이다. IPv6 Address특징으로서는 기하 급수적으로 늘어나는 Internet Address를 감당해낼 수 있고, Multi-Media Data 처리가 능숙한 데다 보안성까지 갖추고 있어 앞으로 이용에 대한 장래성이 기대되는 프로토콜이다.

• Journal of Korean Elementary Science Education
• /
• v.35 no.2
• /
• pp.137-149
• /
• 2016

The purpose of this study is to develop a descriptive paper test item which can evaluate elementary school students' HGA (scientific Hypothesis Generating Ability) and to propose a counting formula that can easily assess student's HGA objectively and quantitatively. To make the test item can possibly evaluate all the students from 6th graders to 3rd graders, the 'rabbit's ear' item is developed. Developed test item was distributed to four different elementary schools in Seoul. Total 280 students who were in the 6th grade solved the item. All the students' reponses to the item were analyzed. Based on the analyzed data evaluation factors and evaluation criteria are extracted to design a Hypothesis Generating ability Quotient (HGQ). As the result 'Explican's Degree of Likeness' and 'Hypothesis' Degree of Explanation' are chosen as evaluation factors. Also precedent evaluation criteria were renewed. At first, Explican's Degree of Likeness evaluation criterion was turned four levels into three levels and each content of evaluation criterion is also modified. Secondly, new evaluation factor 'Hypothesis' Degree of Explanation' was developed as combined three different evaluation criteria, 'level of explican', 'number of explican' and 'structure of explican'. This evaluation factor was designed to assess how the suggested hypothesis can elaborately explain the cause of one phenomenon. Newly designed evaluation factors and evaluation criteria can assess HGA more in detail and reduce the scoring discordant through the markers. Lastly, Developed counting formula is much more simple than precedent Kwon's equation for evaluating the Hypothesis Explanation Quotient. So it could help easily distinguish one student's scientific hypothesis generating ability.

• Journal of the Korean Chemical Society
• /
• v.56 no.1
• /
• pp.92-101
• /
• 2012

The degradation of one of the commercially important hydrogel based on acrylic acid and acryl amide, (acrylic acid-co-acryl amide) hydrogels, by means of ultrasound irradiation and its combination with heterogeneous ($TiO_2$) was investigated. 24 kHz of ultrasound irradiation was provided by a sonicator, while an ultraviolet source of 16 W was used for UV irradiation. The extent of sonolytic degradation increased with increasing ultrasound power (in the range 30-80 W). $TiO_2$ sonophotocatalysis led to complete (acrylic acid-co-acryl amide) hydrogels degradation with increasing catalyst loading, while, the presence of $TiO_2$ in the dark generally had little effect on degradation. Therefore, emphasis was totally on the sonolytic and sonophotocatalytic degradation of hydrogels and a synergy effect was calculated for combined degradation procedures (Ultrasound and Ultraviolet) in the presence of $TiO_2$ nanoparticles. $TiO_2$ sonophotocatalysis was always faster than the respective individual processes due to the enhanced formation of reactive radicals as well as the possible ultrasound-induced increase of the active surface area of the catalyst. A kinetics model based on viscosity data was used for estimation of degradation rate constants at different conditions and a negative order for the dependence of the reaction rate on total molar concentration of (acrylic acid-co-acryl amide) hydrogels solution within the degradation process was suggested.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.10
• /
• pp.4462-4470
• /
• 2012

This study aims to examine the effects of process-based integrated Mathematics Science Activities on children's science process skills and scientific attitudes and arrange efficient teaching and learning environment in the field. The subjects of research were 89 three-year and five-year old children attending kindergarten attached to W university in I city, Jeollabuk-do and process-based integrated Mathematics Science activities were conducted with themes. For data analysis, paired t-test was conducted with SPSS for Windows program and as a result of performing process-based integrated Mathematics Science activities, it was found that there were significant differences in sub-factors of science process skills and scientific attitude by age and sex. These results suggested that process-based integrated activities had positive influences on three-year and five-yeard old children.

• Korean Institute of Interior Design Journal
• /
• v.16 no.2 s.61
• /
• pp.322-330
• /
• 2007

Because 6sigma is doing innovative success In management whole, estimate that can exert direct effect in interior Design management. Therefore, this study did by purpose that 6sigma that is scientific method that do customers satisfaction by ultimate purpose acts as basic study that can heighten practical use Possibility and result of interior Design management and value by interior design standardization process. Need to use marketing data that is scientific design component at schematic design step for successful interior design that can improve result. Hereupon, this study is doing to big dimension that utilizes 6sigma and makes standard process of only Interior Design, and did to dimension that present study phase verifies if '6sigma' is practical use possibility by intoner design process. Did by method that verification method of 6sigma practical use possibility analyzes "Information transmission efficiency improvement of department store display space" 6sigma project example. When see that example project is analyzed on Improvement constituent that "Design improvement" out of Vital few Xs of statistical analysis item must heighten the customers satisfaction rate conclusively, target process might be established because design becomes center of gravity if did design improvement very first time. Finally, possibility that 6sigma can utilize in process of interior design is verified, and it is scientific methodology that can utilize to all business members that there are not any special category of business even if is in practical use. Such scientific 6sigma method need persistent study that make standard process analyzing a lot of problems that is expected to be beaconed and happens substantially in here after to management development of interior design.

• Journal of the Korean association of regional geographers
• /
• v.18 no.4
• /
• pp.400-413
• /
• 2012

The purpose of this study was to look into the formation process and characteristics of local high-tech industrial complex with an example of the Ochang Scientific Industrial Complex and analyzed the characteristics by business type and size, transfer process of the companies in the Complex. For this purpose, statistical data of the companies were analyzed and a survey of them was conducted, and the following results were obtained. First, the Ochang Scientific Industrial Complex was created for agglomeration of IT industries in early days but now there are IT industries and BT industries mixed due to internal and external economic condition. Second, there are more small and medium companies than large companies in the Ochang Scientific Industrial Complex. These companies are in the stage of developing new products and marketing, and many of them were parts and materials developers of core technology or high innovation with venture identification. Third, high rates of the companies in the Ochang Scientific Industrial Complex came from the capital area and the Chungcheong area and the companies which moved in the Complex with their head quarters accounted for more than 70 percent. Fourth, the companies were classified into 5 types according to the type of product and the level of technical innovation.

• Journal of the Korean Society for information Management
• /
• v.24 no.3
• /
• pp.179-200
• /
• 2007

This study identifies the interdisciplinary structures of 8 scientific disciplines in science and technology using the data from journal citations and web links, and compares the interdisciplinarity among these scientific disciplines. The interdisciplinarity refers to interdisciplinary connections among scientific fields and the degree of interdisciplinarity is measured by the number of associated fields and the rate of self-citation. A re-arranged classification scheme for science and technology was adopted to identify subject categories of journals and web pages. Web link analysis revealed a few additional interdisciplinary connections that were not identified by the journal citation analysis, thus demonstrating that it is useful means of investigating the interdisciplinarity of scientific fields. Besides, in most of the cases the interdisciplinarity of the engineering fields were found greater than that of the fields in natural sciences in both analyses.