Night Market as Conceived-Planned Space: The Case of Davao City, Philippines

This paper explores and tackles the meaning and issues of Roxas Night Market in Davao City as conceived space. Guided by Henri Lefebvre’s notion of space as conceived, which refers to the perspective of planners, designers, or engineers, the night market in Davao City is described as space created by the Local Government Unit (LGU) and regulated by rules that it has set. Recognizing that this notion of space impinges upon the life of the street vendors, the LGU’s account of the issues that beset the area as rules are applied and decisions are imposed is also identified and looked into. Consequently, such issues interface with the other two notions of space of Lefebvre as lived and practiced. More to the point, space as lived stands for the meanings that vendors attach to their experiences as they reflect on their past and imagine their future, and space as practiced pertains to the vendors’ day-to-day experiences as they subsist in their vending sites. Using case study as research design, the night market through Lefebvre’s space as conceived can be interpreted as the LGU’s economic rationalization of space use in the context of the changing needs of the city and the uses of its public space. Corollary to this, it is also in response to the increasing number of street vendors in the city center, a way of framing vendors as symbols of resilience against terrorism after the bombing incident in 2016, and as an expression of the uncertainty and limits of its plans as the LGU grapples with its responsibility to decide on the future of street vendors and the night market in the city

NUMERICAL STUDY OF THE ERYTHRITOL MELTING PROCESS IN A TRIDIMENSIONAL RECTANGULAR CAVITY

Many areas of engineering, such as the petrochemical and food industries, use thermal energy storage to achieve better performance. Thermal energy storage can be used as a heat source or a heat sink. The thermal storage/release technology, based on the use of phase change materials (PCMs), which possess a great capacity of heat accumulation, has raised an important practical interest. Indeed, the improved storage density and the constant temperature release of energy allow a more compact heat exchange design and simplify system management. Phase change phenomena occurring during PCM melting and PCM solidification need to be carefully controlled. The aim of the present numerical study is to investigate the heat transfer and hydrodynamic characteristics of a phase change material (PCM) in a rectangular cavity and the melting process dependence on the cavity height. The geometry consists of a mini rectangular cavity which contains PCM. Water or steam flows in the longitudinal direction of the cavity, thus heating or cooling the PCM in the cavity. The computational domain is made of three materials: air, aluminum and PCM. The grid mesh is structured, hexaedrical and refined near the walls. The study is developed with different operation conditions of the mass flow and water temperature. The numerical simulation is developed through CFD (Computational Fluid Dynamics) with the Fluent code. The mathematical model was validated using results available in the literature. Results of temperature, velocity and volume fraction fields indicate that the cavity height has no impact on the melting process

A spiral structure in the disk of EX Draconis on the rise to outburst maximum

We report on the R-band eclipse mapping analysis of high-speed photometry of the dwarf nova EX Dra on the rise to the maximum of the November 1995 outburst. The eclipse map shows a one-armed spiral structure of ~180 degrees in azimuth, extending in radius from R ~0.2 to 0.43 R_{L1} (where R_{L1} is the distance from the disk center to the inner Lagrangian point), that contributes about 22 per cent of the total flux of the eclipse map. The spiral structure is stationary in a reference frame co-rotating with the binary and is stable for a timescale of at least 5 binary orbits. The comparison of the eclipse maps on the rise and in quiescence suggests that the outbursts of EX Dra may be driven by episodes of enhanced mass-transfer from the secondary star. Possible explanations for the nature of the spiral structure are discussed.Comment: To appear in the Astrophysical Journal Letters; 8 pages, 2 figures; coded with AAS latex styl

Acorn flour and sourdough: an innovative combination to improve gluten free bread characteristics

Nowadays, challenges in gluten free breads (GFB) are focused on improving the nutritional and health benefits. Acorn flour is an underexploited sustainable ingredient, naturally gluten free, with many nutritional and technological advantages. The aim of this study was to explore the interaction of acorn flour supplementation (up to 35%) to rice flour and sourdough process to obtain rice based GFB. Different levels of rice flour replacement with acorn flour (0%, 23% and 35%), and sourdough (20%) were tested in a basic GFB recipe, and technological, nutritional, and functional GFB characteristics evaluated. The combination of acorn flour and sourdough was responsible for acidifying dough and bread. Breads containing 35:65 acorn flour: rice flour led to harder breads with lower crumb luminosity and with reddish and brownish tones, besides improved structural features when adding sourdough. That combination of sourdough and acorn flour reduced the rate and the extent of starch hydrolysis, as well as increase the minerals content, total phenolic compounds and antioxidant activity. Therefore, the combination of acorn flour and sourdough process allows obtaining rice based GFB with better nutritional patterninfo:eu-repo/semantics/publishedVersio

Production Management Model Based on Lean Manufacturing and Change Management Aimed at Reducing Order Fulfillment Times in Micro and Small Wooden Furniture Companies in Peru

This research study seeks to identify and prioritize the causes of order fulfillment delays in a small wooden furniture manufacturing company. The authors propose a 5-phase Lean Optimization model to address and reduce this problem. Post-implementation results yielded a 54.87% reduction in material search and transportation times, a 32.86% reduction in travel times between stations, and a 19.81% increase in line efficiency. In addition, order fulfillment percentages increased from 12.5% to 60%

The relationship between body and substrate color for Ambystoma altamirani (Caudata: Ambystomatidae) from the Arroyo los Axolotes, Mexico

The relationship between body and substrate color for Ambystoma altamirani (Caudata: Ambystomatidae) from the Arroyo los Axolotes, Mexico. To determine whether the coloration of Ambystoma altamirani varies and whether the color is related to the color of the salamander’s substrate, A. altamirani from the Arroyo los Axolotes, state of México, Mexico, was examined. The study was conducted from February 2018 to January 2019, and the colors classified by comparison with a standard color wheel. The most common base color was olive-green (64%) followed by black (21%). The most common color combinations were olive-green with black markings (44%), solid black (14%), and olive-green with black and yellow markings (11%). Olive-green salamanders were present in every month of the study, whereas the other base colors were found in fewer months, with the greatest diversity of base colors being observed from April to July. Olive-green, black, and “light” A. altamirani were found on dark substrates more frequently than expected based on availability compared to intermediate or light substrates. Because there is no evidence for substrate color matching, substrate selection likely is based on other environmental features.Relación entre el color del cuerpo y del sustrato de Ambystoma altamirani (Caudata: Ambystomatidae) en el Arroyo los Axolotes, México. Examinamos si la coloración de Ambystoma altamirani varía y si ésta está relacionada con el color del sustrato usado por esta salamandra, en la población de Arroyo los Axolotes, Estado de México, México. Estudiamos esta población desde febrero 2018 hasta enero 2019, y clasificamos los colores comparando a estos con una rueda de color estándar. El color de fondo de cuerpo más común fue el verde olivo (64%) seguido por el negro (21%). Las combinaciones de colores de cuerpo más comunes fueron el verde olivo con marcas negras (44%), negro sólido (14%), y verde olivo con negro y marcas amarillas (11%). Salamandras verde olivo estuvieron presentes en todos los meses de estudio, mientras que los otros colores base se registraron en menos meses, con la mayor diversidad de colores base siendo observada desde abril hasta julio. Individuos de A. altamirani de colores verde olivo, negro y pálido, todos utilizaron sustratos oscuros más frecuentemente que lo esperado con base a la disponibilidad comparado a los sustratos intermedios o pálidos. Debido a que no hubo evidencia de coincidencia con el color del sustrato, esto sugiere que la selección del sustrato se base en otras características ambientales.Relação entre a cor do corpo e do substrato de Ambystoma altamirani (Caudata: Ambystomatidae) em Arroyo los Axolotes, México. Examinamos se a coloração de Ambystoma altamirani varia e se está relacionada com a cor do substrato usado por essa salamandra na população de Arroyo los Axolotes, Estado do México, México. Estudamos essa população de fevereiro de 2018 a janeiro de 2019 e classificamos as cores comparando-as com uma roda de cores padrão. A cor de fundo do corpo mais comum foi o verde-oliva (64%) seguido pelo preto (21%). As combinações de cores corporais mais comuns foram verde oliva com manchas pretas (44%), preto sólido (14%) e verde oliva com manchas pretas e amarelas (11%). As salamandras verde-oliva estiveram presentes em todos os meses de estudo, enquanto as restantes cores de base foram registadas em menos meses, sendo a maior diversidade de cores de base observada de abril a julho. Indivíduos de A. altamirani verde oliva, pretos e de cores claras usaram substratos escuros com mais frequência do que o esperado com base na disponibilidade em comparação com substratos intermediários ou claros. A falta de evidência de correspondência com a cor do substrato sugere que a seleção do substrato é baseada em outras características ambientais

Impact of acorn flour on gluten-free dough rheology properties

Gluten is a fundamental ingredient in breadmaking, since is responsible for the viscoelastic behaviour of the dough. The lack of gluten has a critical e ect on gluten-free dough, leading to less cohesive and less elastic doughs, and its replacement represents a challenge for bakery industry. However, dough rheology can be improved combining di erent ingredients with structural capacity and taking advantage from their interactions. Although acorn flour was used to bake bread even before Romans, nowadays is an underexploited resource. It presents good nutritional characteristics, particularly high fibre content and is naturally gluten free. The aim of this study was to use acorn flour as a gluten-free ingredient to improve dough rheology, following also market trends of sustainability and fibre-rich ingredients. Doughs were prepared with buckwheat and rice flours, potato starch and hydroxypropylmethylcellulose. Two levels of acorn flour (23% and 35% w/w) were tested and compared with control formulation. Micro-doughLAB was used to study mixing and pasting properties. Doughs were characterised using small amplitude oscillatory measurements (SAOS), with a controlled stress rheometer, and regarding Texture Profile Analysis (TPA) by a texturometer. Dietary fibre content and its soluble and insoluble fractions were also evaluated on the developed breads. Acorn flour showed promising technological properties as food ingredient for gluten-free baking (improved firmness, cohesiveness and viscoelasticity of the fermented dough), being an important fibre sourceinfo:eu-repo/semantics/publishedVersio

Thermodynamic properties of binary HCP solution phases from special quasirandom structures

Three different special quasirandom structures (SQS) of the substitutional hcp $A_{1-x}B_x$ binary random solutions ($x=0.25$, 0.5, and 0.75) are presented. These structures are able to mimic the most important pair and multi-site correlation functions corresponding to perfectly random hcp solutions at those compositions. Due to the relatively small size of the generated structures, they can be used to calculate the properties of random hcp alloys via first-principles methods. The structures are relaxed in order to find their lowest energy configurations at each composition. In some cases, it was found that full relaxation resulted in complete loss of their parental symmetry as hcp so geometry optimizations in which no local relaxations are allowed were also performed. In general, the first-principles results for the seven binary systems (Cd-Mg, Mg-Zr, Al-Mg, Mo-Ru, Hf-Ti, Hf-Zr, and Ti-Zr) show good agreement with both formation enthalpy and lattice parameters measurements from experiments. It is concluded that the SQS's presented in this work can be widely used to study the behavior of random hcp solutions.Comment: 15 pages, 8 figure

LEAN Production Management Model based on Organizational Culture to Improve Cutting Process Efficiency in a Textile and Clothing SME in Peru

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.In recent years, homegrown SMEs have had low production levels when compared with Chinese garment imports, losing their competitive advantage in the domestic market. SMEs represent 96% of garment companies in Peru and have a positive impact on the creation of jobs. The search for a technique to improve SME output was conducted in various studies; however, the efforts did not bear fruit over time. Thus, this article seeks to improve the low production efficiency in textile and clothing SMEs. Therefore, we proposed a model and validated it in the production area of a denim clothing manufacturing company in Peru. We conducted business diagnostics and found a production efficiency problem. Later, we adapted the Lean production management model to the prevailing organizational culture. The main result was that the company's production efficiency increased from 68% to 71%. Finally, employee commitment, along with the combination of the Lean model and organizational culture, allowed the improvements to stand the test of time after their implementation

Production management model through MPS and line balancing to reduce the non-fulfillment of orders in lingerie clothing MSEs in Peru

The focus of this research is to establish control and planning management in the sewing production process of lingerie clothing to better prepare companies for demand growth. The lack of improvement tools in this sector, the lack of staff training and a lack of quality culture has led to companies, especially MYPES, not being able to meet the established delivery times and non-fulfillment of orders with the customers, which represents 80% of dissatisfied orders due to the limited production capacity and non-productive time in the plant. This problem is due to limited production capacity, deficient production planning, and lack of materials. In order to solve this problem, industrial engineering tools were used. The application of these tools improved production from 79% to 95%