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      • SCIESCOPUSKCI등재

        Comparison of Mathematical Models Applied to F1 Dairy Sheep Lactations in Organic Farm and Environmental Factors Affecting Lactation Curve Parameter

        Angeles-Hernandez, J.C.,Albarran-Portillo, B.,Gomez Gonzalez, A.V.,Pescador Salas, N.,Gonzalez-Ronquillo, M. Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.8

        The objective of this study was to compare the goodness of fit of four lactation curve models: Wood's Gamma model (WD), Wilmink (WL), and Pollott's multiplicative two (POL2) and three parameters (POL3) and to determine the environmental factors affecting the complete lactation curve of F1 dairy sheep under organic management. A total of 5,382 weekly milk yields records from 150 ewes, under organic management were used. Residual mean square (RMS), determination coefficients ($R^2$), and correlation (r) analysis were used as an indicator of goodness of fit for each model. WL model best fitted the lactation curves as indicated by the lower RMS values (0.019), followed by WD (0.023), POL2 (0.025) and POL3 (0.029). The four models provided total milk yield (TMY) estimations that were highly correlated (0.93 to 0.97) with observed TMY (89.9 kg). The four models under estimated peak yield (PY), whereas POL2 and POL3 gave nearer peak time lactation estimations. Ewes lambing in autumn had higher TMY and showed a typical curve shape. Higher TMY were recorded in second and third lambing. Season of lambing, number of lambing and type of lambing had a great influenced over TMY shaping the complete lactation curve of F1 dairy sheep. In general terms WL model showed the best fit to the F1 dairy sheep lactation curve under organic management.

      • KCI등재

        Dualismo, Neoclasismo, Crecimiento y Desarrollo en la Ciudad de México

        Gerardo Angeles-Castro,헤라르도 앙헬레스-카스트로 한국라틴아메리카학회 2008 라틴아메리카연구 Vol.21 No.4

        Over the last few years in Mexico, the Capital City tends to abandon the roll of being a dominant pole that boosts polarization in terms of economic and human development concentration. According to the Dualist thesis, over the longer-run a pole can exert a spread effect of growth and development, due to natural reasons and public policy. Although the Federal District keeps the highest indicators of per cápita income and human development, these indicators have the lowest growth in relation to the other local states. The neoclassical postulates can justify this trend, because they claim that regions with a high initial development tend to have lower growth. However, international comparisons show that the economic and human development indicators in Mexico City have fallen behind, and therefore the City does not have a solid spread effect in the national territory. In contrast, the economic and human development performance in Mexico City tends to slow down the national performance.

      • Mainstreaming Green Growth in the Global Swine Industry

        Maria Angeles O,Cateloa,Richard B,Daite 아시아무역학회 2017 Journal of Asia Trade and Business Vol.4 No.1

        Global trade in pig meat is forecast to grow on an upward trend as it did between 2006 and 2015. But in meeting future higher demand for pig meat, growth in swine production and productivity has to occur sustainably because of the environmental problems that are associated with it. The pursuit of green growth is a strategic initiative towards achieving sustainable development and inclusive growth particularly for developing countries in Asia, such as the Philippines which ranked 8th in the world in terms of the carcass equivalent of swine production. Applying a comparative analysis of environmental indicators to a balanced panel dataset of 80 swine farm observations from top swine-producing regions of Central Luzon and South Luzon for 2002 and 2015, this paper examines whether swine production in the Philippines exhibits the characteristics of green growth. The paper also determines the potential and constraints of mainstreaming green growth in swine production. The results of the analysis reveal that swine farms exhibit green growth characteristic of pollution reduction but only to a certain degree, scale, and production arrangement. Mainstreaming green growth in swine production is not impossible but will entail many cost, market, financial, and institutional barriers to hurdle.

      • KCI등재

        Sentinel-1 Persistent Scatterer Interferometric Synthetic Aperture Radar (PS-InSAR) for Long-Term Remote Monitoring of Ground Subsidence: A Case Study of a Port in Busan, South Korea

        Ryan Angeles Ramirez,권태혁 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.10

        Reclamation has allowed rapid land expansions for economic zones, residential areas, airports, industrial parks, and seaports. Meanwhile, the reclaimed lands often pose a risk of ground subsidence, jeopardizing functions of aboveground infrastructures, buildings, and facilities and threatening human lives. Therefore, it is critical to systematically monitor and manage the reclaimed lands after construction and minimize geohazard risks. This paper presents a case study on long-term remote monitoring of ground subsidence in reclaimed land using satellite synthetic aperture radar (SAR) data and the Persistent Scatterer Interferometric SAR (PS-InSAR) technique. The case study explores the excessive and persistent ground subsidence in Busan New Port, South Korea, which occurred since 2007. We employ large stacks of Sentinel-1 data acquired from the ascending and descending tracks for reliable estimation of ground subsidence and utilize the hyperbolic model, providing an updated prediction tool. A benchmarking and media fact-checking approach consistently supports our PS-InSAR analysis results. The time-series results show that the maximum subsidence rate is approximately -85 mm/yr along the radar line-of-sight (LOS). PS-InSAR can assist in saving expensive and laborious mapping and operational field-survey services and offers essential guidance for the next phase of future construction of Busan New Port.

      • KCI등재

        Radiological Alert Network of Extremadura (RAREx) at 2021:30 years of development and current performance of real-time monitoring

        María Angeles Ontalba,Jos e Angel Corbacho,Antonio Baeza,Jose Vasco,Jose Manuel Caballero,David Valencia,Juan Antonio Baeza 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.2

        In 1993 the University of Extremadura initiated the design, construction and management of theRadiological Alert Network of Extremadura (RAREx). The goal was to acquire reliable near-real-timeinformation on the environmental radiological status in the surroundings of the Almaraz Nuclear Power Plant by measuring, mainly, the ambient dose equivalent. However, the phased development of thisnetwork has been carried out from two points of view. Firstly, there has been an increase in the numberof stations comprising the network. Secondly, there has been an increase in the number of monitoredparameters. As a consequence of the growth of RAREx network, large data volumes are daily generated. To face this big data paradigm, software applications have been developed and implemented in order tomaintain the indispensable real-time and efficient performance of the alert network. In this paper, the description of the current status of RAREx network after 30 years of design andperformance is showed. Also, the performance of the graphing software for daily assessment of theregistered parameters and the automatic on real time warning notification system, which aid with thedecision making process and analysis of values of possible radiological and non-radiological alterations,is briefly described in this paper.

      • KCI등재

        WOx nanoclusters highly dispersed on titania nanofibers

        C. Angeles-Chavez,M.A. Cortes-Jácome,J.A. Toledo-Antonio 한양대학교 세라믹연구소 2008 Journal of Ceramic Processing Research Vol.9 No.5

        WOx-TiO2 catalysts with different W contents on titanium oxide nanofibers were prepared by impregnation of (NH4)2WO4 aqueous solution and annealed in air at 400 oC. X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and Raman spectroscopy were used for chemical and structural characterization. The results revealed that the support consisted of β-titanium oxide nanofibers with WOx species highly dispersed on the nanofibers saturating the surface at a concentration around 30 wt%. With an increase in the W concentration to 40 and 50 wt%, a crystalline WO3 phase segregates from the support, growing as large WO3 crystallites, whereas the support remains homogeneously decorated by WOx nanoclusters with dimensions around 1.0 nm. The W atoms remained octahedrally coordinated with a W = O Raman vibrating band at 974 cm−1. WOx-TiO2 catalysts with different W contents on titanium oxide nanofibers were prepared by impregnation of (NH4)2WO4 aqueous solution and annealed in air at 400 oC. X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and Raman spectroscopy were used for chemical and structural characterization. The results revealed that the support consisted of β-titanium oxide nanofibers with WOx species highly dispersed on the nanofibers saturating the surface at a concentration around 30 wt%. With an increase in the W concentration to 40 and 50 wt%, a crystalline WO3 phase segregates from the support, growing as large WO3 crystallites, whereas the support remains homogeneously decorated by WOx nanoclusters with dimensions around 1.0 nm. The W atoms remained octahedrally coordinated with a W = O Raman vibrating band at 974 cm−1.

      • KCI등재

        Dos crisis económicas recientes en México

        Gerardo Angeles Castro(헤라르도 앙헬레스 카스트로),Jonathan Ortiz Galindo(조나단 오르티스 갈린도) 한국라틴아메리카학회 2010 라틴아메리카연구 Vol.23 No.3

        This work shows some different definitions and theoretical foundations to understand the problem of asymmetric information thus supports the theory of banking and financial crisis. Also discussed the evolution of the 1994-1995 and 2008-2009 financial crisis, we contrast the theory of financial crisis and we make a comparison of the development of the two recessionary periods under study. Once discarded asymmetric information problems as the reason for the crisis of 2008-2009, we show the causes that led to this period of recession and approach makes the prospects for economic recovery.

      • Amorphous Ni-Mn oxide electrodeposited on activated carbon for capacitive deionization

        ( Anne Therese Angeles ),함가현,이재영 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-

        Pseudocapacitive materials are very promising electrodes for capacitive deionization since they have the ability to have high electrosorption capacity and rate. Manganese and its oxides have been used extensively due to its high theoretical capacitance, low cost and environmental friendliness. Studies has shown that mixing in Ni with Mn can improve its conductivity as well as tune its morphology. In this study, an amorphous Ni-Mn oxide was coated on activated carbon through anodic electrodeposition at constant current. Its deposition on activated carbon improved its wettability and showed an improvement in specific capacitance and charge transfer resistance. CDI testing revealed that Ni-Mn oxide as the cathode yielded higher electrosorption capacity, charge efficiency and stability than a symmetric cell of activated carbon. This shows that Ni-Mn oxide has a great potential for CDI and its easy fabrication can pave the way for commercialization and/or a large-scale application.

      • KCI등재

        Effect of tumor burden and radical surgery on survival difference between upfront, early interval or delayed cytoreductive surgery in ovarian cancer

        Martina Aida Angeles,Bastien Cabarrou,Antonio Gil-Moreno,Asunción Pérez-Benavente,Emanuela Spagnolo,Agnieszka Rychlik,Carlos Martínez-Gómez,Frédéric Guyon,Ignacio Zapardiel,Denis Querleu,Claire Illac 대한부인종양학회 2021 Journal of Gynecologic Oncology Vol.32 No.6

        Objective: We sought to evaluate the impact on survival of tumor burden and surgical complexity in relation to the number of cycles of neoadjuvant chemotherapy (NACT) in patients with advanced ovarian cancer (OC) with minimal (CC-1) or no residual disease (CC-0). Methods: This retrospective study included patients with International Federation of Gynaecology and Obstetrics IIIC–IV stage OC who underwent debulking surgery at 4 high- volume institutions between January 2008 and December 2015. We assessed the overall survival (OS) of primary debulking surgery (PDS group), early interval debulking surgery after 3–4 cycles of NACT (early IDS group) and delayed debulking surgery after 6 cycles (DDS group) with CC-0 or CC-1 according to peritoneal cancer index (PCI) and Aletti score. Results: Five hundred forty-nine women were included: 175 (31.9%) had PDS, 224 (40.8%) early IDS and 150 (27.3%) DDS. Regardless of Aletti score, median OS after PDS was significantly higher than after early IDS or DDS, but the survival difference was higher in women with an Aletti score <8. Among patients with PCI ≤10, median OS after PDS was significantly higher than after early IDS or DDS. In women with PCI >10, there were no differences between PDS and early IDS, but DDS was associated with decreased OS. Conclusion: The benefit of complete PDS compared with NACT was maximal in patients with a low complexity score. In patients with low tumor burden, there was a survival benefit of PDS over early IDS or DDS. In women with high tumor load, DDS impaired the oncological outcome.

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