We report a comprehensive study on influence of oxygen partial pressure on NiO thin films grown on glass substrates in a combined argon and oxygen ambience by reactive dc magnetron sputtering. In ...this present article, we have discussed the dependence of oxygen pressure on structural, chemical, morphological, optical and electrical properties of the sputtered NiO films. Glancing angle x-ray diffraction reveals that the deposited films were polycrystalline in nature with FCC phase. The preferred orientation changes from (200) to (111) in a higher O2 flow rate environment and an average particle size was estimated using Scherrer relation. The surface morphology of films was studied by using atomic force microscopy. The x-ray photoelectron spectroscopy analysis demonstrates the core level Ni 2p spectra over a range of 850 eV to 885 eV of binding energy and observed Ni 2p3/2, Ni 2p1/2 domains along with their satellite peaks. It infers the presence of both Ni+2 and Ni+3 oxidation states in the sputtered films. Additionally, Raman spectroscopy was carried out to confirm the structural defects level and crystalline nature of the films. The optical results show that deposited films were semi-transparent and the evaluated optical band gap of the material lies in the range 3.36 eV to 3.52 eV. The extracted electrical properties infer either n-type or p-type conductivity depending on the processing conditions of the films.
This study estimated the growth of body, carcass, primal cuts, edible offal, and feathers of Japanese quail reared in two thermal environments, receiving three nutritional plans, from one to 39 days ...of age. A total of 576 one-day-old female chicks (Coturnix japonica) with an average initial weight of 7.51±0.75g/bird were evaluated in a completely randomized design with a 3 × 2 factorial arrangement (three nutritional plans × two temperatures). The animals were housed in two climatic chambers, at 25 ºC and 35 ºC, using 12 replications with eight birds per experimental unit. Nutritional plans (NP) were as follows: NP1: one diet from 1-21days and another from 22-39 days; NP2: one diet from 1-14 days and another from 15-39 days; and NP3: a single diet from 1-39 days. The growth curves and growth rates of body, carcass, primal cuts, feathers, and edible offal were evaluated using the Gompertz mathematical model. Quail fed NP3 showed higher growth curves and rates for body, carcass, drumstick +thigh, and feather. There was an effect on maturity rate, which was lowest in quail housed at 35 ºC. Among the animals kept at 25 ºC, the group fed NP3 exhibited the highest growth rate and breast weight. The nutritional plan consisting of a single diet offered from 1 to 39 days, formulated based on the tables for Japanese and European quail, is the most suitable for estimating the growth curves (Gompertz model) of Japanese quail housed at 25 ºC or 35 ºC.
RESUMO: Objetivou-se estimar o crescimento corporal, carcaça, cortes nobres, vísceras comestíveis e penas de codornas japonesas criadas em dois ambientes térmicos e alimentadas com três planos nutricionais de um a 39 dias. Foram utilizadas 576 pintainhas (Coturnix japônica), fêmeas, com um dia de idade, com peso médio inicial 7,51 ± 0,75g/ave, distribuídas em delineamento inteiramente casualizado em esquema fatorial 3 × 2 (três planos nutricionais x duas temperaturas), alojadas em duas câmaras climáticas de 25º e 35 ºC, com 12 repetições e oito aves por unidade experimental. Os planos nutricionais foram: plano nutricional um (PN1) - uma dieta de 1-21 dias e uma dieta de 22-39 dias; plano nutricional dois (PN2) - uma dieta de 1-14 dias e uma dieta de 15-39 dias; e plano nutricional três (PN3) - dieta única de 1-39 dias. Foram avaliadas as curvas e taxas de crescimento corporal, carcaça, cortes nobres, penas e vísceras comestíveis, através do modelo matemático de Gompertz. Codornas alimentadas com PN3 apresentaram maiores curvas e taxas de crescimento corporal, de carcaça, coxa + sobrecoxa e penas. Houve efeito para taxa de maturidade, sendo inferior para codornas alojadas em 35 ºC. Nas aves mantidas em 25 ºC, observou-se maior taxa de crescimento e peso de peito nas codornas alimentadas com PN3. O plano nutricional composto por uma única dieta ofertada durante o período de um a 39 dias, formulado com base nas recomendações das tabelas para codornas japonesas e europeias, é o mais indicado para estimar curvas de crescimento no modelo de Gompertz de codornas japonesas alojadas em 25 ºC ou 35 ºC.
Falling is a major challenge faced by elderly and disabled people who live alone. They therefore need reliable surveillance so they can be assisted in the event of a fall. An effective fall detection ...system is needed to provide good care to such people as it will allow for communication with caregivers. Such a system will not only reduce the medical costs related to falls but also lower the death rate among elderly and disabled people due to falls. This review paper presents a survey of different fall detection techniques and algorithms used for fall detection. Various fall detection approaches including wearable, vision, ambience, and multimodal systems are analyzed and compared and recommendations are presented.
ABSTRACT Enthalpy is currently suggested as a suitable index for assessing the internal environment of poultry production, primarily dependents on air temperature and relative air humidity. This ...study aimed to analyze enthalpy in bird production in Londrina, located in the northern region of Paraná, Brazil, and to model the comfort enthalpy required for enhanced production efficiency. Data from 1961 to 2021 from the Instituto Nacional de Meteorologia (INMET), Brasília, Federal District, Brazil, were utilized to compare the thermal comfort conditions and critical limits set for the birds. The meteorological data from this period were scrutinized to understand their variations and interrelationship through a descriptive study and correlation analysis of different parameters. The research findings, based on the enthalpy indices derive historical averages, suggest that heating is crucial for birds during the first and second weeks of housing, during the winter, given the location’s low temperatures. For birds housed during the third to sixth weeks of age, the enthalpy indices indicated the necessity of cooling systems.
RESUMO A entalpia tem sido proposta atualmente como um índice adequado para a avaliação do ambiente interno de galpões de frangos de corte, pois depende basicamente da temperatura e da umidade relativa do ar. Dessa forma, objetivou-se analisar a entalpia como índice de conforto térmico na produção de aves para o município de Londrina, Paraná, e modelar a entalpia aos índices de conforto térmico que proporcionam eficiência na produção. Para o estudo, utilizaram-se dados de 1961 a 2021 do Instituto Nacional de Meteorologia (INMET), de Brasília, Distrito Federal. Os dados meteorológicos desse período foram analisados para conhecer suas variações e as relações entre eles, através de um estudo descritivo e de correlação entre diferentes parâmetros, para comparar as condições de conforto térmico e os limites críticos estabelecidos para as aves. Com base nos resultados desta pesquisa, considerando os índices de entalpia obtidos através de médias históricas, pode-se concluir que a utilização de aquecimento para as aves na primeira e segunda semanas de alojamento, no período de inverno, considerando o local estudado, é imprescindível, devido às baixas temperaturas registadas. Para aves alojadas na terceira, quarta, quinta e sexta semana de idade, considerando os índices de entalpia, pode-se concluir que é necessária a utilização de sistemas de resfriamento para as aves.
Fast food restaurants are important for both residents and tourists in Macau because they serve as a common cultural and organizational entity. The objective of this study is to identify the ...attributes, consequences, and value of fast food consumption among tourists and residents in Macau and to compare hierarchical value maps between the two different groups. Data were collected in fast food restaurants in Macau. A hard laddering method was utilized based on Means-end chain theory, in order to identify how attributes of fast food are connected to consumers' final values. The findings indicate that good taste, brand reputation, and restaurant ambience are important attributes shared among tourists and residents. While brand familiarity and the lack of a language barrier were more important attributes to tourists, reasonable prices were the most important attribute that residents appreciated. This study provides useful insights that will enable fast food operators to develop and efficiently communicate their value propositions to their target customers.
Open in early 2020 as the pandemic rushed into Indonesia, made culinary and hospitality industry such: café must adopt a new normal quickly. New normal regulation from the authorities made ...restriction in crowd maker activities and regional mobility (PSBB). On this situation, Café shall make innovation to survive from the further economic crisis. Some protocol such as: wash both hands with soap, body temperature check before entering the buildings; limitation in number of visitors must be performed. This study purpose is to investigate the design innovation of café business during this pandemic. Using direct physical observation and literature studies, this research obtains results of certain innovation by the cafe such as: redesigning the interior layout, emphasizing the room ambience, and photo spots addition. Those innovations were expected to maintain café business during pandemic.
PDF
