Land-ocean interaction of carbon cycle and bio-diversity change during the Cretaceous in Asia

Graciano P. Yumul, Jr.,Hiromichi Hirano,Yong Il Lee 한국지질과학협의회 2006 Geosciences Journal Vol.10 No.3

Tectonic setting of a composite terrane: A review of the Philippine island arc system

Graciano P. Yumul Jr.,Carla B. Dimalanta,Victor B. Maglambayan,Edanjarlo J. Marquez 한국지질과학협의회 2008 Geosciences Journal Vol.12 No.1

Features resulting from the interplay of arc magmatism, ophiolite accretion, ocean basin closure and other subsequent tectonic processes are preserved in the Philippine island arc system. Subduction of ocean floor along the trenches surrounding the Philippines is a major factor in shaping the geologic history of this island arc system. Stress-strain relationships, as manifest in both the regional and local setting of the archipelago, are derived from the interaction of at least four major plates: Sundaland, Philippine Mobile Belt, Philippine Sea and, to a certain extent, the Indo-Australian plate. Collision zones in this island arc system are characterized by the involvement of oceanic bathymetric highs (seamounts, spreading ridge, submerged continental fragment). A major strike-slip fault, the Philippine Fault Zone, with compressional and extensional components, traverses the whole archipelago where all excess stress not accommodated by the surrounding trenches is taken up. Tholeiitic through adakitic to calc-alkaline rock suites characterize the different magmatic arcs. Exposed oceanic lithospheric fragments exhibit transitional mid-ocean ridge, back arc basin to island arc geochemical characteristics. The observed crustal thickness in the Philippines resulted from combined magmatic (volcanism) and amagmatic (ophiolite accretion) processes, with the former being the dominant factor. Features resulting from the interplay of arc magmatism, ophiolite accretion, ocean basin closure and other subsequent tectonic processes are preserved in the Philippine island arc system. Subduction of ocean floor along the trenches surrounding the Philippines is a major factor in shaping the geologic history of this island arc system. Stress-strain relationships, as manifest in both the regional and local setting of the archipelago, are derived from the interaction of at least four major plates: Sundaland, Philippine Mobile Belt, Philippine Sea and, to a certain extent, the Indo-Australian plate. Collision zones in this island arc system are characterized by the involvement of oceanic bathymetric highs (seamounts, spreading ridge, submerged continental fragment). A major strike-slip fault, the Philippine Fault Zone, with compressional and extensional components, traverses the whole archipelago where all excess stress not accommodated by the surrounding trenches is taken up. Tholeiitic through adakitic to calc-alkaline rock suites characterize the different magmatic arcs. Exposed oceanic lithospheric fragments exhibit transitional mid-ocean ridge, back arc basin to island arc geochemical characteristics. The observed crustal thickness in the Philippines resulted from combined magmatic (volcanism) and amagmatic (ophiolite accretion) processes, with the former being the dominant factor.

Magmatic and amagmatic contributions to crustal growth in the Philippine island arc system: Comparison of the Cretaceous and post-Cretaceous periods

Carla B. Dimalanta,Graciano P. Yumul, Jr. 한국지질과학협의회 2006 Geosciences Journal Vol.10 No.3

Volume, p. 35.Yumul, G.P. Jr., Dimalanta, C.B., Tamayo, R.A.Jr. and Bellon, H.,2003b, Silicic arc volcanism in Central Luzon, Philippines: Char-acterization of its space, time and geochemical relationship. TheIsland Arc, 12, 207218.Yumul, G.P.Jr., Dimalanta, C.B., Tamayo, R.A.Jr. and Maury, R.C.,2003c, Collision, subduction and accretion events in the Philip-pines: A synthesis. The Island Arc, 12, 7791.

Brazilian savannah fruits: Characteristics, properties, and potential applications

Silva, Cinthia Aparecida de Andrade,Fonseca, Gustavo Graciano 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.5

The Brazilian savannah is the second largest biome of the country, and it displays great biodiversity. The fruits of the native trees have peculiar characteristics and are recognized for their nutritional and therapeutic aspects. However, little is known about their technological and biotechnological potential applications. The existing information concerning these aspects has never been compiled so far. It is known that many of these fruits contain many bioactive compounds of industrial interest, such as carotenoids and phenolic constituents. Another aspect of the fruit is the high fatty acid content of some species. Pequi, bocaiuva, jatoba, baru, amburama, and buriti, for instance, are among those fruits described as being rich in fatty acids, mostly unsaturated ones. Here, we reviewed 18 species from the Brazilian savannah identified to be of interest because of high potencial for sustained medium- and short-term explorations, under the technological and biotechnological aspects, seeking the development of new products from these scarcely studied raw materials.

Brazilian savannah fruits: Characteristics, properties, and potential applications

Cinthia Aparecida de Andrade Silva,Gustavo Graciano Fonseca 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.5

The Brazilian savannah is the second largest biome of the country, and it displays great biodiversity. The fruits of the native trees have peculiar characteristics and are recognized for their nutritional and therapeutic aspects. However, little is known about their technological and biotechnological potential applications. The existing information concerning these aspects has never been compiled so far. It is known that many of these fruits contain many bioactive compounds of industrial interest, such as carotenoids and phenolic constituents. Another aspect of the fruit is the high fatty acid content of some species. Pequi, bocaiuva, jatoba, baru, amburama, and buriti, for instance, are among those fruits described as being rich in fatty acids, mostly unsaturated ones. Here, we reviewed 18 species from the Brazilian savannah identified to be of interest because of high potencial for sustained medium- and short-term explorations, under the technological and biotechnological aspects, seeking the development of new products from these scarcely studied raw materials.

Yield, Viscosity, and Gel Strength of Wami Tilapia (Oreochromis urolepis hornorum) Skin Gelatin: Optimization of the Extraction Process

Alexandre da Trindade Alfaro,Gustavo Graciano Fonseca,Evellin Balbinot,Nilson Evelazio de Souza,Carlos Prentice 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.3

A factorial design and response surfacemethodology were used to optimize the extraction processof tilapia skin gelatin (Oreochromis urolepis hornorum). The concentrations of NaOH (0.15%-0.35%) and H2SO4(0.15%-0.35%), the extraction temperature (40°C-60°C),and the extraction time (3-15 h) were independent variables. Response variables were yield (%), viscosity (mPa·s), andgel strength (g). The NaOH (%) and H2SO4 (%) concentrationshad significant influences (p<0.05) on viscosity and gelstrength, while the extraction temperature (oC) and theextraction time (h) showed significant influences (p<0.05)on all dependent variables. Increasing the temperature andextraction time provided higher yields with a reduction inthe gelatin viscosity and gel strength. Tilapia fish skin canbe used as a source for production of gelatin.

Influence of Adding Recovered Protein from Processing Wastewater on the Quality of Mechanically Separated Chicken Meat Surimi Like-Material

William Renzo Cortez-vega,Gustavo Graciano Fonseca,Daniela Cardozo Bag-atini,Carlos Prentice 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.2

Functional and nutritional soluble proteins can be recovered from surimi (and surimi-like material) processing wastewater, reducing environmental problems and the cost of an irresponsible waste disposal. Recovered proteins may be added back at a low percentage to surimi products. The aim of this work was to evaluate the effect of the addition of soluble recovered proteins (RP), obtained from mechanically separated chicken meat surimi-like material (MSCM-SLM) processing wastewater by acidic pH-shifting, on the composition and texture of RP-MSCM-SLM, with RP contents of 0, 10, 20 and 30% (w/w) in the mixture. For that, proximate composition and gel properties were evaluated. The fat content of the MSCMSLM was significantly reduced to 11.98% and protein increased to 83.64% (dry basis) after three washing cycles. The addition of 30% RP in the MSCM-SLM significantly augmented the protein content to 93.45% and reduced fat content from to 2.78%. On the other hand, the addition of RP was responsible for a drastic decrease in texture parameters, reaching 252.36 g, 185.23 g.cm, and 6.97 N for breaking force, gel strength and cutting strength, respectively, when 30% of RP was included in the MSCM-SLM. It was concluded that the obtained intermediary product (RP-MSCM-SLM) is a good option to applications in processed meat products where high texture parameters are dispensable, e.g., emulsified inlaid frankfurter-type sausages, but high protein content and low fat content desired.

Application of a newly developed software program for image quality assessment in conebeam computed tomography

Marcus Vinicius Linhares de Oliveira,António Carvalho Santos,Graciano Paulo,Paulo Sergio Flores Campos,Joana Santos 대한영상치의학회 2017 Imaging Science in Dentistry Vol.47 No.2

Purpose: The purpose of this study was to apply a newly developed free software program, at low cost and with minimal time, to evaluate the quality of dental and maxillofacial cone-beam computed tomography (CBCT) images. Materials and Methods: A polymethyl methacrylate (PMMA) phantom, CQP-IFBA, was scanned in 3 CBCT units with 7 protocols. A macro program was developed, using the free software ImageJ, to automatically evaluate the image quality parameters. The image quality evaluation was based on 8 parameters: uniformity, the signal-to-noise ratio (SNR), noise, the contrast-to-noise ratio (CNR), spatial resolution, the artifact index, geometric accuracy, and low-contrast resolution. Results: The image uniformity and noise depended on the protocol that was applied. Regarding the CNR, highdensity structures were more sensitive to the effect of scanning parameters. There were no significant differences between SNR and CNR in centered and peripheral objects. The geometric accuracy assessment showed that all the distance measurements were lower than the real values. Low-contrast resolution was influenced by the scanning parameters, and the 1-mm rod present in the phantom was not depicted in any of the 3 CBCT units. Smaller voxel sizes presented higher spatial resolution. There were no significant differences among the protocols regarding artifact presence. Conclusion: This software package provided a fast, low-cost, and feasible method for the evaluation of image quality parameters in CBCT.

Application of a newly developed software program for image quality assessment in cone-beam computed tomography

de Oliveira, Marcus Vinicius Linhares,Santos, Antonio Carvalho,Paulo, Graciano,Campos, Paulo Sergio Flores,Santos, Joana Korean Academy of Oral and Maxillofacial Radiology 2017 Imaging Science in Dentistry Vol.47 No.2

Purpose: The purpose of this study was to apply a newly developed free software program, at low cost and with minimal time, to evaluate the quality of dental and maxillofacial cone-beam computed tomography (CBCT) images. Materials and Methods: A polymethyl methacrylate (PMMA) phantom, CQP-IFBA, was scanned in 3 CBCT units with 7 protocols. A macro program was developed, using the free software ImageJ, to automatically evaluate the image quality parameters. The image quality evaluation was based on 8 parameters: uniformity, the signal-to-noise ratio (SNR), noise, the contrast-to-noise ratio (CNR), spatial resolution, the artifact index, geometric accuracy, and low-contrast resolution. Results: The image uniformity and noise depended on the protocol that was applied. Regarding the CNR, high-density structures were more sensitive to the effect of scanning parameters. There were no significant differences between SNR and CNR in centered and peripheral objects. The geometric accuracy assessment showed that all the distance measurements were lower than the real values. Low-contrast resolution was influenced by the scanning parameters, and the 1-mm rod present in the phantom was not depicted in any of the 3 CBCT units. Smaller voxel sizes presented higher spatial resolution. There were no significant differences among the protocols regarding artifact presence. Conclusion: This software package provided a fast, low-cost, and feasible method for the evaluation of image quality parameters in CBCT.

A Novel Discrete-time Nonlinear Model Predictive Control Based on State Space Model

Carlos Sotelo,Antonio Favela-Contreras,Francisco Beltrán-Carbajal,Graciano Dieck-Assad,Pedro Rodríguez-Cañedo,David Sotelo 제어·로봇·시스템학회 2018 International Journal of Control, Automation, and Vol.16 No.6

This paper proposes a novel finite dimensional discrete-time Nonlinear Model Predictive Control. This technique is based on discrete-time state-space models, Taylor series expansion for prediction and performance index optimization. Furthermore, the technique extends the concept of the Lie derivative for the discrete time case using Euler backwards method. The performance validation for the discrete-time Nonlinear Model Predictive Control uses the simulation of a single-link flexible joint robot and the inverted pendulum. Comparison of the proposed finite dimensional discrete-time Nonlinear Model Predictive Control technique with Feedback Linearization Control is also discussed. Analytical and numerical results show excellent performances for both, the single-link flexible joint and inverted pendulum controllers using the proposed discrete-time Nonlinear Model Predictive Control technique.