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        • SCISCIESCOPUS

          Determination of anthelmintic drug residues in milk using ultra high performance liquid chromatography-tandem mass spectrometry with rapid polarity switching

          Whelan, M.,Kinsella, B.,Furey, A.,Moloney, M.,Cantwell, H.,Lehotay, S.J.,Danaher, M. Elsevier 2010 Journal of chromatography Vol.1217 No.27

          A new UHPLC-MS/MS (ultra high performance liquid chromatography coupled to tandem mass spectrometry) method was developed and validated to detect 38 anthelmintic drug residues, consisting of benzimidazoles, avermectins and flukicides. A modified QuEChERS-type extraction method was developed with an added concentration step to detect most of the analytes at <1μgkg<SUP>-1</SUP> levels in milk. Anthelmintic residues were extracted into acetonitrile using magnesium sulphate and sodium chloride to induce liquid-liquid partitioning followed by dispersive solid phase extraction for cleanup. The extract was concentrated into dimethyl sulphoxide, which was used as a keeper to ensure analytes remain in solution. Using rapid polarity switching in electrospray ionisation, a single injection was capable of detecting both positively and negatively charged ions in a 13min run time. The method was validated at two levels: the unapproved use level and at the maximum residue level (MRL) according to Commission Decision (CD) 2002/657/EC criteria. The decision limit (CCα) of the method was in the range of 0.14-1.9 and 11-123μgkg<SUP>-1</SUP> for drugs validated at unapproved and MRL levels, respectively. The performance of the method was successfully verified for benzimidazoles and levamisole by participating in a proficiency study.

        • KCI등재

          상하수처리 계획을 위한 BOT 도입 방안

          Whelan, Brian J .,Norton, Michael R .,Clark, Jonathan 한국수처리기술연구회 1996 한국수처리학회지 Vol.4 No.4

          정부들은 사회자본의 재정조달과 관례에 의해 기본적인 공공의 요구들을 제공하기 위한 책임들을 전통적으로 충족시켰다. 최근에 한 새로운 접근방법이 건설(Build), 운전(Operate), 변경(Transfer) 개념들을 채택하는 그런 시설들을 제공하기 위해 채택되어 왔다. 본 논문은 BOT개념을 공정의 전형적인 구조와 관리로 설명한다. 또한 위험의 본질들, 성공에 열쇠가 되는 적절한 배분을 다루며 BOT 개념을 상하수처리장의 수행에 적용시키는 것을 개괄적으로 설명한다. 마지막으로 최근에 착수된 처리장들의 효율성을 파악하고 미래의 교훈들을 제시한다. BOT 접근방법을 보편적으로 채택하는 동기들은 다음과 같다. .자본예산에 주는 부담을 최소화하는 것. .사적인 부문(Sector)으로부터 증대된 효율성을 도입하는 것. .외국의 투자와 신기술의 도입을 장려하는 것. BOT 계약들을 많은 전통적인 공공의 부문들을 넘어 프로젝트의 건설을 재정지원하는 방법으로서 점점 더 많이 사용되고 있다. BOT 접근방식은 재정적으로 그리고 법적으로 복잡하다. 잠재적인 특허권과 의뢰인 집단에 의한 이상적인 접근에 중요한 기본적인 문제들에 대한 분명한 정의는 성공적인 검증과 배분을 특히 중요하다. 하수처리 프로젝트들은 BOT 접근방식에 아주 적합하고 현재는 허가기간의 초기단계를 넘어 성공적으로 운영되는 전세계에 걸친 많은 BOT 하수처리 프로젝트들의 본보기들이 있다. 성공적으로 후원되고 있는 BOT 하수처리 프로젝트들의 수는 늘어가고 있고 의뢰인 집단이 그 개념을 좀 더 알게 되고 그 개념에 대한 경험을 얻을 때, BOT의 사용은 확산될 수 있다. Goverments have traditionally fulfilled their responsibilities for the provision of basic community needs by the financing and management of the infrastructure which provides it. In recent year, a new approach has been adopted for the provision of such facilities adopting the Build, Operate, transfer(BOT)concept. This paper describes, the BOT concept, typical structure and management of the process. It then deals with the essemtials of risk, the proper allocation of which is the key to successm and outline the application of BOT concepts to the implementation of Water/Wastwater Treatment Plants. Finally, it summarises the effestiveness of those undertaken to date and suggests lessons for the future.

        • SCIESCOPUS

          Wireless operational modal analysis of a multi-span prestressed concrete bridge for structural identification

          Whelan, Matthew J.,Gangone, Michael V.,Janoyan, Kerop D.,Hoult, Neil A.,Middleton, Campbell R.,Soga, Kenichi Techno-Press 2010 Smart Structures and Systems, An International Jou Vol.6 No.5

          Low-power radio frequency (RF) chip transceiver technology and the associated structural health monitoring platforms have matured recently to enable high-rate, lossless transmission of measurement data across large-scale sensor networks. The intrinsic value of these advanced capabilities is the allowance for high-quality, rapid operational modal analysis of in-service structures using distributed accelerometers to experimentally characterize the dynamic response. From the analysis afforded through these dynamic data sets, structural identification techniques can then be utilized to develop a well calibrated finite element (FE) model of the structure for baseline development, extended analytical structural evaluation, and load response assessment. This paper presents a case study in which operational modal analysis is performed on a three-span prestressed reinforced concrete bridge using a wireless sensor network. The low-power wireless platform deployed supported a high-rate, lossless transmission protocol enabling real-time remote acquisition of the vibration response as recorded by twenty-nine accelerometers at a 256 Sps sampling rate. Several instrumentation layouts were utilized to assess the global multi-span response using a stationary sensor array as well as the spatially refined response of a single span using roving sensors and reference-based techniques. Subsequent structural identification using FE modeling and iterative updating through comparison with the experimental analysis is then documented to demonstrate the inherent value in dynamic response measurement across structural systems using high-rate wireless sensor networks.

        • 現 蘇聯 Baltic艦隊 上陸軍

          Morhew J. Whelan,윤화섭 해군대학 1982 海洋戰略 Vol.- No.15

          현재 소련은 발틱해 일대를 거의 지배하고 있다. 세계제2차대전 이후 소련은 Bothnia와 Finland만 입구의 제해권은 획득하였을 뿐 아니라, 그들의 국경선을 발틱해의 동해안 선을 따라 확장하여 왔다.

        • KCI등재후보

          Wireless operational modal analysis of a multi-span prestressed concrete bridge for structural identification

          Matthew J. Whelan,Michael V. Gangone,Kerop D. Janoyan,Neil A. Hoult,Campbell R. Middleton,Kenichi Soga 국제구조공학회 2010 Smart Structures and Systems, An International Jou Vol.6 No.5

          Low-power radio frequency (RF) chip transceiver technology and the associated structural health monitoring platforms have matured recently to enable high-rate, lossless transmission of measurement data across large-scale sensor networks. The intrinsic value of these advanced capabilities is the allowance for high-quality, rapid operational modal analysis of in-service structures using distributed accelerometers to experimentally characterize the dynamic response. From the analysis afforded through these dynamic data sets, structural identification techniques can then be utilized to develop a well calibrated finite element (FE) model of the structure for baseline development, extended analytical structural evaluation, and load response assessment. This paper presents a case study in which operational modal analysis is performed on a three-span prestressed reinforced concrete bridge using a wireless sensor network. The low-power wireless platform deployed supported a high-rate, lossless transmission protocol enabling real-time remote acquisition of the vibration response as recorded by twenty-nine accelerometers at a 256 Sps sampling rate. Several instrumentation layouts were utilized to assess the global multi-span response using a stationary sensor array as well as the spatially refined response of a single span using roving sensors and reference-based techniques. Subsequent structural identification using FE modeling and iterative updating through comparison with the experimental analysis is then documented to demonstrate the inherent value in dynamic response measurement across structural systems using high-rate wireless sensor networks.

        • A Study to Optimize a Commerical Vehicle Fuel Consumption Using Vehicle Simulation

          Myungseok Lyu,Steven Whelan,Ben Rogers 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.5_1

          An approach to optimizing vehicle fuel economy is described based on a study of a commercial vehicle. The approach is based on using a V-SIM software vehicle simulation to identify the relative efficiency of each of the vehicle systems, such as the engine hardware, engine software calibration, transmission, cooling system and ancillary drives. The simulation based approach offers a detailed understanding of what vehicle systems are underperforming and by how much the vehicle fuel economy can be improved if those systems are brought up to best-in-class performance. In this way, the optimum vehicle fuel economy can be provided to the vehicle customer. A further benefit is that the simulation requires only a minimum of vehicle testing for initial validation, with all subsequent field test cycles performed in software, thereby reducing development time and cost for the manufacturer.

        • Neural correlates of oddball detection in self-motion heading: a high-density event-related potential study of vestibular integration.

          Nolan, H,Butler, J S,Whelan, R,Foxe, J J,B?lthoff, H H,Reilly, R B Springer-Verlag 2012 Experimental brain research Vol.219 No.1

          <P>The perception of self-motion is a product of the integration of information from both visual and non-visual cues, to which the vestibular system is a central contributor. It is well documented that vestibular dysfunction leads to impaired movement and balance, dizziness and falls, and yet our knowledge of the neuronal processing of vestibular signals remains relatively sparse. In this study, high-density electroencephalographic recordings were deployed to investigate the neural processes associated with vestibular detection of changes in heading. To this end, a self-motion oddball paradigm was designed. Participants were translated linearly 7.8 cm on a motion platform using a one second motion profile, at a 45 angle leftward or rightward of straight ahead. These headings were presented with a stimulus probability of 80-20 %. Participants responded when they detected the infrequent direction change via button-press. Event-related potentials (ERPs) were calculated in response to the standard (80 %) and target (20 %) movement directions. Statistical parametric mapping showed that ERPs to standard and target movements differed significantly from 490 to 950 ms post-stimulus. Topographic analysis showed that this difference had a typical P3 topography. Individual participant bootstrap analysis revealed that 93.3 % of participants exhibited a clear P3 component. These results indicate that a perceived change in vestibular heading can readily elicit a P3 response, wholly similar to that evoked by oddball stimuli presented in other sensory modalities. This vestibular-evoked P3 response may provide a readily and robustly detectable objective measure for the evaluation of vestibular integrity in various disease models.</P>

        • SCOPUS

          A study of the pH dependence of electronically excited guanosine compounds by picosecond time-resolved infrared spectroscopy

          McGovern, David A.,Doorley, Gerard W.,Whelan, Aine M.,Parker, Anthony W.,Towrie, Michael,Kelly, John M.,Quinn, Susan J. Korean Society of Photoscience 2009 Photochemical & photobiological sciences Vol.8 No.4

          The photophysical properties of 5'-guanosine monophosphate (5'-GMP) and polyguanylic acid {poly(G)} in $D_2O$ solutions of varying pH have been studied using picosecond transient infrared absorption spectroscopy. Whereas in neutral or weakly alkaline solution only the vibrationally excited electronic ground state of 5'-GMP is observed, in acidic solution the relatively long-lived ($229{\pm}20\;ps$) electronic excited state of protonated 5'-GMP, which possesses strong absorptions at 1517 and $1634\;cm^{-1}$, could be detected. The picosecond transient behaviour of polyguanylic acid in acidic solution is also very different from that of the polynucleotide in neutral solution due not only to the protonation of guanine moieties yielding the protonated excited state but because of the disruption of the guanine stacks which are present in the species in neutral solution.

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