• 제목/요약/키워드: Potential capability

검색결과 668건 처리시간 0.025초

Pilot 규모의 반응기를 이용한 폐수처리에 관한 연구 (A study on the performance of wastewater treatment with the pilot-scale reactor)

  • 서명교;최윤찬;서정호;노종수;이근복;김의용
    • 한국환경보건학회지
    • /
    • 제22권4호
    • /
    • pp.10-15
    • /
    • 1996
  • Treatment of a synthetic wastewater was made for the purpose of evaluating the performance of a pilot scale of an IFBBR. The particles used in this experiment were circular shaped polystyrene whose density was lower than that of water. The reactor volume was 400 l and the SCOD removal efficiency was more than 90% at HRT of 5 hrs. The IFBBR was successfully operated for 5 months without any significant problems. And it whs certained that IFBBR had a potential capability for treating wastewater.

  • PDF

PV Hot Spot 탐지를 위한 부스트 컨버터 설계 (Photovoltaic Hot Spot Detection Method Integrated into a Boost Converter)

  • 매준훙;김예린
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 2015년도 전력전자학술대회 논문집
    • /
    • pp.103-104
    • /
    • 2015
  • Solar energy has proven to be a potential clean energy source to help offset the large consumption of fossil. Nowadays, many research projects aim to enhance photovoltaic (PV) system performance and functionality. This research focuses on integrating self-monitor capability into dc-dc converters that control PV panels to detect a fault in series-connected PV cells, called hot spotting. A detection method using ac parameter characterization is proposed and its operation is examined through simulation.

  • PDF

Evaluation of Yields by Mobilization and Harvesting of Peripheral Blood Stem Cells

  • Yu, In-Seon;Kang, Jin-Hyung;Lee, Eun-Sook;Lee, Suk-Hyang
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
    • /
    • pp.429.1-429.1
    • /
    • 2002
  • In the patients with hematologic and solid tumors. clinical application of peripheral blood stem cells (PBSCs) increases to reconstitute hematopoiesis after high-dose chemotherapy. To mobilize PBSCs. the hematopietic growth factors have been widely used as single treatment or after chemotherapy. The important issue in the collection of PBSCs is to predict their potential capability to reconstitute hematopoiesis. which depends on optimal time of leukapheresis and the quantity of collected PBSCs. (omitted)

  • PDF

The Effect of Single Wall Carbon Nanotubes on the Dipole Orientation and Piezoelectric Properties of Polymeric Nanocomposites

  • Kang, Jin-Ho;Park, Cheol;Gaik Steven J.;Lowther Sharon E.;Harrison Joycelyn S.
    • 한국고분자학회:학술대회논문집
    • /
    • 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
    • /
    • pp.245-245
    • /
    • 2006
  • Recent studies of single wall carbon nanotube (SWNT)/polyimide nanocomposites indicate that these materials have a potential to provide the combination of structural integrity and sensing/actuation capability. This study shows the effect of the SWNT type and concentration on the dipole orientation and piezoelectric properties of the electroactive polymide nanocomposites using a thermally stimulated current (TSC) spectroscopy. These nanocomposites exhibit very thermally stable piezoelectric properties up to $150^{\circ}C$. This presentation will highlight the dipole orientation and electroactive characteristics of the SWNT/polyimide nanocomposites and discuss their potential multifunctional aerospace applications.

  • PDF

Dynamic Research of a Potential Carrier for Hydrophobic Compound Model Pyrene Using Amphiphilic Peptide EYK

  • Wang, Liang;Zhao, Xiao-Jun
    • Bulletin of the Korean Chemical Society
    • /
    • 제32권2호
    • /
    • pp.620-624
    • /
    • 2011
  • In recent years, the study of self-assembly peptide used in drug delivery system has been attracted great interest from scientists. In the category are self-assembly peptides in the structure either with one hydrophobic surface and another hydrophilic or a hydrophobic head and a hydrophilic tail. Here, we focus on a novel designed peptide EYK with double amphiphilic surfaces, investigating on the capability of peptide as a carrier for hydrophobic compound model pyrene. The fluorescence data presented the dynamic process of the transfer, showing that the pyrene was in the crystalline form in peptide solution, and molecularly migrated from its peptide encapsulations into the membrane bilayers when the peptide-pyrene suspension was mixed with liposome vesicles. The results indicated that the peptide EYK could stabilize hydrophobic pyrene in aqueous solution and delivered it into EPC liposome as a potential carrier.

Towards Resource-Generative Skyscrapers

  • Imam, Mohamed;Kolarevic, Branko
    • 국제초고층학회논문집
    • /
    • 제7권2호
    • /
    • pp.161-170
    • /
    • 2018
  • Rapid urbanization, resource depletion, and limited land are further increasing the need for skyscrapers in city centers; therefore, it is imperative to enhance tall building performance efficiency and energy-generative capability. Potential performance improvements can be explored using parametric multi-objective optimization, aided by evaluation tools, such as computational fluid dynamics and energy analysis software, to visualize and explore skyscrapers' multi-resource, multi-system generative potential. An optimization-centered, software-based design platform can potentially enable the simultaneous exploration of multiple strategies for the decreased consumption and large-scale production of multiple resources. Resource Generative Skyscrapers (RGS) are proposed as a possible solution to further explore and optimize the generative potentials of skyscrapers. RGS can be optimized with waste-energy-harvesting capabilities by capitalizing on passive features of integrated renewable systems. This paper describes various resource-generation technologies suitable for a synergetic integration within the RGS typology, and the software tools that can facilitate exploration of their optimal use.

식품안전을 위한 제품안전 검토 절차(PSR-Logic)에 관한 연구 - 사례 연구 (A Study of the Product Safety Review for the Food Industry: Safety Review Process - Case study -)

  • 현완순;이용수;정수일
    • 대한안전경영과학회지
    • /
    • 제7권5호
    • /
    • pp.85-96
    • /
    • 2005
  • The purpose of the research is to discuss the product safety procedures for the food industry The producer and supplier of the products should satisfy the increasing consumer safety needs. To develop and produce safe products, the food industry must rigorously perform potential hazard findings and very thorough risk analysis to detect even the very minute potential danger. The ultimate product liability rests with the consumer safety and the manufacturer's capability which competes in the market places. This is especially important in the food industry. However, small to medium sized food producing companies are facing challenges in this area due to their overall capabilities. Therefore this research presents safety procedures which are relatively simple to implement.

EVALUATION OF AN ACCIDENT MANAGEMENT STRATEGY OF EMERGENCY WATER INJECTION USING FIRE ENGINES IN A TYPICAL PRESSURIZED WATER REACTOR

  • PARK, SOO-YONG;AHN, KWANG-IL
    • Nuclear Engineering and Technology
    • /
    • 제47권6호
    • /
    • pp.719-728
    • /
    • 2015
  • Following the Fukushima accident, a special safety inspection was conducted in Korea. The inspection results show that Korean nuclear power plants have no imminent risk for expected maximum potential earthquake or coastal flooding. However long- and short-term safety improvements do need to be implemented. One of the measures to increase the mitigation capability during a prolonged station blackout (SBO) accident is installing injection flow paths to provide emergency cooling water of external sources using fire engines to the steam generators or reactor cooling systems. This paper illustrates an evaluation of the effectiveness of external cooling water injection strategies using fire trucks during a potential extended SBO accident in a 1,000 MWe pressurized water reactor. With regard to the effectiveness of external cooling water injection strategies using fire engines, the strategies are judged to be very feasible for a long-term SBO, but are not likely to be effective for a short-term SBO.

Enhancing the Hexavalent Chromium Bioremediation Potential of Acinetobacter junii VITSUKMW2 Using Statistical Design Experiments

  • Pulimi, Mrudula;Jamwal, Subika;Samuel, Jastin;Chandrasekaran, Natarajan;Mukherjee, Amitava
    • Journal of Microbiology and Biotechnology
    • /
    • 제22권12호
    • /
    • pp.1767-1775
    • /
    • 2012
  • The Cr(VI) removal capability of Acinetobacter junii VITSUKMW2 isolated from the Sukinda chromite mine site was evaluated and enhanced using statistical design techniques. The removal capacity was evaluated at different pH values (5-11) and temperatures ($30-40^{\circ}C$) and with various carbon and nitrogen sources. Plackett-Burman design was used to select the operational parameters for bioremediation of Cr(VI). Three parameters (molasses, yeast extract, and Cr(VI) concentration) were chosen for further optimization using central composite design. The optimal combination of parameters was found to be 14.85 g/l molasses, 4.72 g/l yeast extract, and 54 mg/l initial Cr(VI), with 99.95% removal of Cr(VI) in 12 h. A. junii VITSUKMW2 was shown to have significant potential for removal of Cr(VI).

인터넷 상호접속 진화에 따른 대역폭 거래(Bandwidth Trading)의 필요성 및 거래시스템 아키텍처 설계 (Evolution of Internet Interconnections and System Architecture Design for Telecom Bandwidth Trading)

  • 김도훈
    • 한국IT서비스학회지
    • /
    • 제7권1호
    • /
    • pp.131-149
    • /
    • 2008
  • Bandwidth Trading(BT) represents a potential market with over 1 trillion USD across the world and high growth potential. BT is also likely to accelerate globalization of the telecommunications industry and massive restructuring driven by unbundling rush. However, systematic researches on BT remain at an infant stage. This study starts with structure analysis of the Internet industry, and discusses significance of Internet interconnection with respect to BT Issues. We also describe the bandwidth commoditization trends and review technical requirements for effective Internet interconnection with BT capability. Taking a step further, this study explores the possibility of improving efficiency of network providers and increasing user convenience by developing an architectural prototype of Hub-&-Spoke interconnection model required to facilitate BT. The BT market provides an Innovative base to ease rigidity of two-party contract and Increase service efficiency. However, as fair, efficient operation by third party is required, this research finally proposes an exchanging hub named NIBX(New Internet Business eXchange).