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Search Results: 1 - 10 of 41 matches for " The Manila Galleon "
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El abogado Gemelli: memoria viajera y cultura letrada
Bernabéu Albert, Salvador
Anuario de Estudios Americanos , 2012,
Abstract: This study offers a biographical sketch of the traveler Gianfrancesco Gemelli Carreri (Radicena, 1651-Naples, 1725), who undertook (among other travels) a trip around the world between 1693 and 1698. His European dealings are placed in context, his literary output scrutinized, and the controversies surrounding the publication of his Giro del Mondo (1699-1700) discussed. The latter part of the study examines the circumstances behind his journey from Manila to Acapulco and the richness of his account of it, one of the most detailed and fascinating texts we have of a passage across the northern Pacific. El trabajo aborda la biografía del viajero Gianfrancesco Gemelli Carreri (Radicena, 1651-Nápoles, 1725), quien realizó, entre otros viajes, una vuelta al mundo entre 1693 y 1698. Se contextualizan sus empresas europeas, se analiza la producción literaria y se resaltan las polémicas que rodearon su Giro del Mondo (1699-1700). La última parte del trabajo está dedicada a estudiar las circunstancias y riqueza de datos del relato de su periplo desde Manila a Acapulco: uno de los textos más completos e interesantes para conocer la travesía del Pacífico Septentrional.
Evaluation of Multiple Herbicides for Control of Sponge Plant (Limnobium laevigatum)  [PDF]
Ben E. Willis, Mark A. Heilman, West M. Bishop, Scott W. Shuler
Journal of Geoscience and Environment Protection (GEP) , 2018, DOI: 10.4236/gep.2018.66004
Abstract: Sponge plant is an emerging threat that has spread throughout California including the Sacramento-San Joaquin Delta, which is an important water resource for agriculture as well as critical habitat for a variety of threatened and endangered species. More data are needed on effective control methods for this spreading invader, as current management practices are not preventing proliferation. The overall objectives of this research were to evaluate imazamox, penoxsulam, topramezone, florpyrauxifen-benzyl, and carfentrazone-ethyl for control of sponge plant using three testing scales, as well as compare image analysis software to traditional biomass response for measuring herbicide performance. Overall, 280 g imazamox ha1 (with one-percent methylated seed oil surfactant) was found as a potent solution for all different growth stages of sponge plant, and 70 g penoxsulam ha1 as an alternative for control of sponge plant in the seedling and rosette growth stage. The image analysis software yielded similar measurement of herbicide effects as traditional biomass measure. Mesocosm testing indicated imazamox treatment sites should be inspected at four week intervals to identify plants missed by prior applications. This research provides water resource managers critical information for identification of an aquatic invasive species, and selecting an effective rapid management program.
Fabrication of Manila Hemp Fiber Reinforced Cross Ply Biodegradable Composites and Their Tensile Properties  [PDF]
Shinji Ochi
Open Journal of Composite Materials (OJCM) , 2018, DOI: 10.4236/ojcm.2018.83007
Abstract: Natural plant fibers, including flax, kenaf, jute, bamboo, ramie and much more are renewable and sustainable resources and are considered good candidates for cost-effective alternatives to glass and carbon fibers. In this research, cross ply biodegradable composites were fabricated by press-forming method. The biodegradable composites consist of Manila hemp textile as a reinforcement and starch-based biodegradable plastics as a matrix was fabricated and investigated about mechanical properties. The tensile strength increased with the fiber content until fiber content of about 50% and leveled off thereafter. This dependence on the fiber content is due to the decrease in fiber strength of loading direction caused by fiber damages introduced during hot-pressing. In order to decrease the damage of fibers aligned in loading direction, Manila hemp textile was produced by using Manila hemp fibers for warp and biodegradable resin thread for weft. As a result, the tensile strength of cross ply composites increased from 153 MPa to 202 MPa.
The Formation of Migrant Muslim Communities in Metro Manila
Akiko Watanabe
Kasarinlan : Philippine Journal of Third World Studies , 2007,
Abstract: The paper examines the formation of migrant Muslim communities in Metro Manila set against the Philippine government’s changing policies toward the Muslim Filipinos in Mindanao at the turn of the twenty-first century. The Muslim Filipinos’ migration to Metro Manila has been steered by kin and ethnic relations and religious tolerance. This, in turn, resulted in ethnic and economic stratifications in and among the migrant Muslim communities in Metro Manila. The paper analyzes these communities and the dynamics that structure Muslim Filipinos’ spatial movements in and around Metro Manila.
Modeling the Circulation of Manila Bay: Assessing the Relative Magnitudes of Wind and Tide Forcing
Cesar Villanoy,Marilou Martin
Science Diliman , 1997,
Abstract: A two-dimensional circulation model of Manila Bay was used to determine the relative importance of wind and tide forcing. Tidal forcing was prescribed using tidal curves based on two diurnal (O1 and K1) and two semidiurnal (M2 and S2) components on both sides of the bay mouth. A slight amplitude increase towards the head of the bay was obtained, presumably due to shoaling effects. The high correlation between sea level variations at selected coastal tide stations and model results suggests the dependence on tidal forcing at the mouth. Strongest tidal velocities were found at the mouth and decreased towards the head of the bay. The wind-driven component of the flow using mean September 1995 wind forcing shows the presence of two asymmetrical, counter-rotating gyres. Comparison of wind and tidal kinetic energies indicates the dominance of the wind-driven component of the flow only in selected shallow areas adjacent to the coast.
Flood Hazards in Metro Manila: Recognizing Commonalities, Differences, and Courses of Action
Doracie B. Zoleta-Nantes
Social Science Diliman , 2000,
Abstract: This paper looks at the vulnerability to flood hazards of different urban groups in Metro Manila, the Philippines. It contextualizes and finds similarities and differences in the physical, social, economic and institutional manifestations of severe flood hazards to three groups of people in the mega-city. They are the street children and residents of wealthy neighborhoods and urban poor settlements. It explicates a set of issues that needs to be confronted and a list of appropriate actions that can be taken to initiate a pro-active stance in dealing with the causes and consequences of flood hazards at the local scale. This is necessary for future development planning and hazard mitigation purposes.
Humic Substances from Manila Bay and Bolinao Bay Sediments
Elma Llaguno
Science Diliman , 1997,
Abstract: The C,H,N composition of sedimentary humic acids (HA) extracted from three sites in Manila Bay and six sites in Bolinao Bay yielded H/C atomic ratios of 1.1-1.4 and N/C atomic ratios of 0.09 - 0.16. The Manila Bay HA's had lower H/C and N/C ratios compared to those from Bolinao Bay. The IR spectra showed prominent aliphatic C-H and amide I and II bands. Manila Bay HA's also had less diverse molecular composition based on the GC-MS analysis of the CuO and alkaline permanganate oxidation products of the humic acids.
A rapid method for simultaneous determination of arsenic, cadmium and lead in drinking water by inductively coupled plasma mass spectrometry
Joshua Rey P. Torres,Ma. Krystell G. Banaag,Irene B. Rodriguez
Science Diliman , 2010,
Abstract: The raw water source of drinking water in most areas in the Philippines is typically river water and in some cases groundwater. These sources are prone to elevated levels of metals and metalloids that may cause exposure of the general population when the treatment of the water is inadequate. This work presents a simple method based on EPA Method 200.8 for the determination of total concentrations of arsenic (As), cadmium (Cd) and lead (Pb) in drinking water using inductively coupled plasma-mass spectrometry (ICP-MS) as the element-selective detector. This was applied in the determination of these elements in the water supply in Metro Manila, Philippines. The method detection limits were 0.095 μg L-1, 0.043 μg L-1, and 0.114 μg L-1 for total As, Cd and Pb, respectively.The method was validated using National Institute of Standards and Technology (NIST) 1643e certified reference material for trace elements in water and determined values were 60.4 ± 0.5 μg L-1, 6.7 ± 0.1 μg L-1, and 19.6 ± 0.5 μg L-1 for As, Cd and Pb, respectively. These determined values were in good agreement with the certified values in the reference material. Analysis of actual drinking water samples showed that most samples did not exceed the limit of the Philippine drinking water standard for the elements.
Desamparo en que con la vida, se pierde el alma . Las controversias en torno a la obra pía del Abad Sidoti para la recogida de ni os chinos abandonados (Filipinas, 1705-1740)
Manchado López, Marta M.a
Revista de Indias , 2011,
Abstract: This study focuses on the pious work founded by the Italian cleric Juan Bautista Sidoti in Manila in 1705, aimed at rescuing children that were abandoned by their parents in China. The objective of this investigation was to explain the origin and characteristics of said foundation, as well as the trials and tribulations it suffered throughout the years that hindered its application in later years. El presente estudio se centra en la obra pía fundada en 1705 en Manila por el clérigo italiano Juan Bautista Sidoti, destinada al rescate de ni os abandonados por sus padres en China. Se ha realizado a partir de documentación inédita procedente de los fondos del Archivo General de Indias. El objetivo de esta investigación ha sido explicar el origen y características de dicha fundación, así como las vicisitudes que sufrió a lo largo de los a os y que obstaculizaron su aplicación, iniciada en fechas ya tardías.
Durability of Starch Based Biodegradable Plastics Reinforced with Manila Hemp Fibers
Shinji Ochi
Materials , 2011, DOI: 10.3390/ma4030457
Abstract: The biodegradability of Manila hemp fiber reinforced biodegradable plastics was studied for 240 days in a natural soil and 30 days in a compost soil. After biodegradability tests, weights were measured and both tensile strength tests and microscopic observation were performed to evaluate the biodegradation behavior of the composites. The results indicate that the tensile strength of the composites displays a sharp decrease for up to five days, followed by a gradual decrease. The weight loss and the reduction in tensile strength of biodegradable composite materials in the compost soil are both significantly greater than those buried in natural soil. The biodegradability of these composites is enhanced along the lower portion because this area is more easily attacked by microorganisms.
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