• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2011.10a
• /
• pp.866-868
• /
• 2011

In this paper, we propose an implementation of user interaction effect of web application using jQuery. jQuery is a very popular and extensible JavaScript library. It is strong in controlling DOM(Document Object Model), events and Ajax. But, it is poor at advanced effect of web user UI(User Interface). Implementing advanced effects need to extend jQuery or some skills. So, our proposal is a good way to implement UI effects.

• Journal of Applied Biological Chemistry
• /
• v.43 no.1
• /
• pp.31-36
• /
• 2000

Apparent MWDs of DOM in natural waters and swine wastewaters were determined through membrane ultrafiltration. The nominal MWCOs of ultrafiltration membranes by the manufacturer were confirmed to be similar with those obtained from the ultrafiltration procedures employed in this study using six MW standard compounds. Natural waters showed a wide range of MWOs, but 62.4~87.5% were in the range of MW<10K. High MW fractions were preferentially removed through water treatment processes. Swine wastewater showed two major ranges of MWDs, 49.0% in <1K and 36% in >50k while anaerobically treated swine wastewaters showed 17.5~18.0% in <1K and 53.0~58.8% in <50K. The overall DOM was reduced during anaerobic treatment by 76.8~80.0% as COD; however. the percentage of low MW fractions decreased and that of the high MW fractions increased.

• Computational Structural Engineering
• /
• v.19 no.2 s.72
• /
• pp.36-46
• /
• 2006

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.17 no.10
• /
• pp.2323-2329
• /
• 2013

Web-services employ an XML to represent data and an XML parser is needed to use data. The DOM(Document Object Model) is widely used to parse an XML, but it is not suitable for any systems with limited resources because it requires a preprocessing to create the DOM and additional memory space. In this paper, we propose the StreXTree(Streaming XML Tree) with failure transitions and without any preprocessing tasks in order to improve the system performance. Compared to other works, our StreXTree parser achieves 2.39x and 3.02x improvement in system performance in Search and RBStreX, respectively. In addition, our StreXTree parser supports Well-Formed checking to verify the syntax and structure of XML.

• Journal of KIISE:Software and Applications
• /
• v.32 no.4
• /
• pp.277-289
• /
• 2005

To overcome the long design time/high computational effort/low computational performance of phylogenetic learning featuring selection and reproduction, this paper proposes a genetic representation based on XML. Since genetic programs (GP) and genetic operations of this representation are maintained by the invocation of the built-in off-the-shelf XML parser's API, the proposed approach features significant reduced time consumption of GP design process. Handling only semantically correct GPs with standard XML schema can reduce search space and computational effort. Furthermore, computational performance can be improved by the parallelism of GP caused by the utilization of XML, which is a feasible system and wire format for migration of genetic programs in heterogeneous distributed computer environments. To verify the proposed approach, it is applied to the evolution of social behaviors of multiple agents modeling the predator-prey pursuit problem. The results show that the approach can be applied for fast development and time efficiency of GPs.

• Journal of Korean Society of Water and Wastewater
• /
• v.22 no.1
• /
• pp.31-38
• /
• 2008

The primary objective of this study was to evaluate the variation of the molecular size distribution by granular activated carbon (GAC) adsorption. GAC adsorption was assessed by using the rapid small-scale column test (RSSCT) and high-performance size-exclusion chromatography (HPSEC) was used to analyze the molecular size distribution (MSD) in the effluent of GAC column. RSSCT study suggested that GAC adsorption exhibited excellent interrelationship between dissolved organic carbon (DOC) breakthrough and MSD as function of bed volumes passed. After GAC treatment, the nonadsorbable fraction which was about 25percents of influent DOC corresponded to the hydrophilic (HPI) natural organic carbon (NOM) of NOM fractions and was composed entirely of <300 molecular weight (MW) in the HPSEC at the initial stage of the RSSCT operation. The dominant MW fraction in the source water was 1,000~5,000daltons. At the bed volumes 2,500, MW <500 of GAC treated water was risen rather than it of source water. After the bed volumes 7,300 of operation, the MW 1,000~3,000 fraction was closed to about 80percents of DOC found in the GAC influent. The Number-average molecular weight (Mn) value determined using HPSEC for the effluent of GAC column was gently increased as DOC breakthrough progress. The quotient p(Mw/Mn) can be used to estimate the degree of polydispersity was shown greatest value for the GAC effluent at the initial stage of the RSSCT operation.

• Ocean and Polar Research
• /
• v.39 no.1
• /
• pp.35-43
• /
• 2017

Concentrations of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), dissolved organic phosphate (DOP), and colored dissolved organic matter (CDOM) were measured in the coastal sea off inland aqua farms in northeastern Jeju Island in summer 2015. The highest concentrations of DOC, DON, and DOP were revealed in the surface water off Hado-ri where the lowest salinity conditions prevailed (31.6). The concentrations of DOC, DON, and DOP in the surface water were lower in the inner stations (SH1-1, 1-2, and 1-3) near the aqua farms of the Haengwon-ri than in the outer stations. The concentrations of DOC, DON, and DOP negatively correlated with salinity. These results indicate that the contribution of dissolved organic matter (DOM) from the aqua farms seems to be not significant. On the other hand, the higher concentrations of DON and DOP in the inner stations of Hado-ri (HD 1-1) seem to be attributed to excrement of migrating birds. The three components of CDOM (T, M, and C peaks) showed no relationship with salinity, perhaps due to various in situ productions by marine organisms and decomposition by ultraviolet radiation. The observed lower C:M ratio, an indicator of terrestrial source, and the higher biological index (BIX) of CDOM in the station off Hado-ri indicate that DOM is produced mainly by biological activity. Based on the higher humification index (HIX) of CDOM and the higher DOC:DON ratio off Haengwon-ri, refractory DOM in the inland aqua farms is likely transported to the coastal sea.

• Journal of KIISE:Databases
• /
• v.33 no.5
• /
• pp.551-562
• /
• 2006

XML query caching for XML database-backed Web applications began to be investigated recently. Despite its practical significance, efficiency of the storage schemes for cached query results has not been addressed. In this paper, we deal with the storage schemes for XML query cache. A fundamental problem that needs to be considered in designing an efficient storage structure for XML query cache is that there exist performance tradeoffs between the two major types of operations on a cached query result. The two are (1) retrieving the whole of it to return the query result and (2) updating just a small portion of it for its incremental refresh against the updates done to its source. We propose eight different storage schemes for XML query cache, which are categorized into three groups: (1) the schemes based on the plain text file, (2) the schemes based on the persistent DOM (PDOM) file, and (3) a scheme employing an RDBMS. We implemented all of them, and compared their performance with each other. We also compared our proposal with a storage scheme based on a current state-of-the-art XML storage scheme, showing that ours is more efficient.

• Proceedings of the KSRS Conference
• /
• 2007.03a
• /
• pp.210-215
• /
• 2007

북극 다산기지가 있는 니알슨 인근 해역인 Kongsfjorden만은 일부 해역이 해빙으로 덮혀 있는 반폐쇄적인 만으로 수심이 평균 200m 이상 된다. 이곳 북극 지방은 하절기 라도 태양의 고도가 낮아 해색위성분야의 극지활용에 대한 가능성 여부도 명확하게 알려져 있지 못하다. 따라서 본 연구에서는 북극 다산기지가 위치한 스발바드 군도의 니알슨 주변 해역(Kongsfjorden 해역)을 중심으로 2006년 8월 현장관측된 자료들을 유사한 시기의 한반도 주변 해역에서 현장관측된 자료들과 비교/분석하여 해양환경적 특성과 해수광학적인 특성이 어떤 차이가 있는지를 비교 분석하였다. 또한 북극 지방에서 인공위성을 이용한 해색위성자료의 극지활용이 가능한지를 검토하였다. 해수의 광 특성으로, 니알슨 주변 해역의 ${\alpha}^*_{ph}(440)$ 최대값은 $0.1m^2/mg$으로 한반도 주변해수의 ${\alpha}^*_{ph}(440)$ 최대값보다 약 2배정도 높게 측정되어 플랑크톤의 광 흡수효율이 중위도보다 상대적으로 높은 것으로 분석되었다. ${\alpha}^*_{ss}(440)$ 값은 $0.04-0.1m^2/g$으로 동중국해와 유사하며，한반도 주변해수보다 높은 값을 나타냈다. 이것은 Kongsfjorden 해역의 부유물질(SS) 구성성분이 동중국해와 유사한 무기광물 입자로 주로 구성되어 있음을 보여주고 있다. ${\alpha}_{dom}(400)$ 값은 $0.08-0.25m^{-1}$로 한반도 주변해수의 ${\alpha}_{dom}(400)$이 값과 유사하고 연안해역의 ${\alpha}_{dom}(400)$ 값보다 낮은 값을 나타냈다. $E_d(460)$의 평균값은 Konsfjorden 해역 $40mW/cm^2/{\mu}m$, 동중국해 $120mW/cm^2/{\mu}m$, 황해남부 $110mW/cm^2/{\mu}m$, 남해연안 $100mW/cm^2/{\mu}m$, 진해만 $100mW/cm^2/{\mu}m$이었다. 이와 같은 현장관측결과를 토대로 분석한 북극 다산기지 주변 해역의 해수광학적인 환경 특성은 용존유기물의 흡광도를 기준으로 볼 때 대양(Open Sea)의 광 특성과 유사하였다. 또한 북극지방에서 태양의 해수 입사 광량은 중위도의 약 40%정도이지만 해색위성자료의 극지활용이 가능하다고 판단되었다.

• Journal of the Korean Geotechnical Society
• /
• v.20 no.8
• /
• pp.15-27
• /
• 2004

Sliding aspects of rock slope, where large-scaled tension cracks are induced during preliminary excavation, have been analyzed. Structure of rock mass is investigated by performing the electrical resistivity survey and the orientations and positions of discontinuities are measured from DOM-drilled core log. Geological evidence far primary failure movement has been detected and clay minerals which possess swelling properties are identified through XRD analysis. Slope stability is examined by considering the orientations of discontinuities and their trace distributions on the cut-face and neighboring natural slope surface. Both orientations and positions of failure-invoking discontinuity planes, traces of which are exposed within the anticipated sliding region, are concerned fur analyzing the preferred sliding directions. Regional sliding vectors are assessed based on the relative positions of potential sliding planes in the boreholes and the general trend of anticipated failure movement of rock slope is also investigated.