scholarly journals Determination of Water Consumption Behavioural Pattern of Student Resident at Public University: Universiti Teknologi Malaysia

Author(s):  
S Z Daud ◽  
I Sipan ◽  
H M Ali ◽  
H A Hashim ◽  
M H Ishak
Facilities ◽  
2005 ◽  
Vol 23 (1/2) ◽  
pp. 82-92 ◽  
Author(s):  
L.T. Wong ◽  
K.W. Mui
Keyword(s):  

2012 ◽  
Vol 43 ◽  
pp. 87-95 ◽  
Author(s):  
Hongyong Sun ◽  
Liwei Shao ◽  
Xiuwei Liu ◽  
Wenfang Miao ◽  
Suying Chen ◽  
...  

2021 ◽  
pp. 21-36
Author(s):  
Sérgio Weine Paulino Chaves ◽  
Rubens Duarte Coelho ◽  
Jéfferson De Oliveira Costa ◽  
Sergio André Tapparo

Micrometeorological variables of tabasco pepper cultivated under greenhouse and drip irrigated conditions have not been presented to date in literature, especially the water consumption of these plants, in terms of crop evapotranspiration (ETc) and crop coefficient (Kc). The determination of these variables is extremely important for the application of the correct amount of water to irrigated crops in these environments because PM FAO (56) standard methodology was idealized for outdoor environments. The objective of this work was to develop models of estimation of micrometeorological variables in greenhouse conditions and to determine the water demand, in terms of evapotranspiration (ET) and Kc, of the pepper (Capsicum frutescens L.), cv. Tabasco McIlhenny, drip irrigated using drainage lysimeters. The research was carried out in an experimental area located at the University of Sao Paulo (USP) in Piracicaba, SP, Brazil. The following micrometeorological variables were monitored: air temperature, air relative humidity (digital thermohygrometer) and evaporation (mini-pan) (EMT). Drainage lysimeters were used to obtain the ETc and the reference evapotranspiration (ETo) was estimated outside the greenhouse by the Penman Monteith (EToPM), Hargreaves and Samani (EToHS) methods and the class “A” pan method (ECA). It was concluded that the total value of mini-pan evaporation (EMT) inside the greenhouse was practically equal to EToPM, 5% lower than EToHS and 31% higher than ECA in the outdoor environment. ET values ranged from 0.28 to 2.42 mm day-1 and total crop ET was 446.43 mm. The Kc values for the first pepper production cycle were: 0.17 in the initial phase, 0.76 in the flowering and fruiting phase and 0.39 in the harvest phase, for the second production cycle, the value of Kc was 0.50 at the harvest phase.


Author(s):  
Ugochukwu Paul Orajaka

The study expressed the effect of job satisfaction and employee recognition to the reward of Management performance in some selected organizations in south East Nigeria. The application of descriptive statistics, correlation tools and mean likert was employed to evaluate the significant relationship and coefficient of determination of the variables. However, the tools show that there is a strong positive relationship association between the job satisfaction and employee recognition in public university. The correlation shows that there is a significant values of 0.000 with relationship of 0.942. This explained that there is a strong positive significant relationship in the system. These results conclude that job satisfaction and employee recognition has a strong positive effect to organizational performance in the study areas selected.


Author(s):  
Paulo Rogério Alves Brene ◽  
Umberto Antonio Sesso Filho ◽  
Ronaldo Raemy Rangel ◽  
Everson Kapusniak

This study aims to build a methodology for the determination of water consumption by sector in the state of Paraná's productive system. For this, it uses data from 2013 (which observed by today's look, allow effects analysis). In order to do so, the importance of water in industrial, commercial, public and practical productionprocesses a methodology was presented to determine the sectorial consumption of water in the Paraná state productive system in 50 sectors. For this purpose, data are used for the input matrix of the state for the year 2013, the number of formal jobs included in the Annual Social Information Ratio (RAIS, 2018) for the same period,and the billed volume of water for the year of 2013, coming from the Companhia de Saneamento do Paraná (SANEPAR, 2018). As a result, a total water consumption for the state of Paraná in 2013 was 391,842,491 m3, with an emphasis on the agricultural sector representing around 70% of this consumption, according to WWAP(2017), with approximately 274,289,744 m3 of water, followed by Commerce with 65,034,959 m3, Industry with 24,992,889 m3, Public Administration with 20,262,809 m3 and Public Utility with 7,262,090 m3.


2005 ◽  
Vol 5 (1) ◽  
pp. 9-15 ◽  
Author(s):  
M. de Lourdes Fernandes Neto ◽  
M. Naghettini ◽  
M. von Sperling ◽  
M. Libânio

The determination of the per capita water consumption is an essential step in the design of water supply systems. The present paper examines the influence of several variables on the per capita water consumption, based on 96 different towns in the Brazilian state of Minas Gerais. The set of samples was categorised firstly into five different classes and three distinct population intervals and, finally, was presented in overall terms. The paper also attempts to explain the relative influence of the intervening factors for each population range, and presents a multivariate regression model for the per capita water consumption rates for towns with populations ranging from 50,000 to 100,000 inhabitants. For this population range, the significant variables were: (a) percentage of water metering, (b) water tariff, and (c) energy consumption by commercial and industrial activities.


Irriga ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 172 ◽  
Author(s):  
HIPÓLITO MURGA-ORRILLO ◽  
Wellington Farias Araújo ◽  
Paulo Roberto Ribeiro Rocha ◽  
Roberto Tadashi Sakazaki ◽  
Luiz Fernandes Silva Dionisio ◽  
...  

EVAPOTRANSPIRAÇÃO E COEFICIENTE DE CULTIVO DO FEIJÃO-CAUPI CULTIVADO EM SOLO DO CERRADO SUBMETIDO À COBERTURA MORTA  HIPÓLITO MURGA-ORRILLO1; WELLINGTON FARIAS ARAÚJO2; PAULO ROBERTO RIBEIRO ROCHA3; ROBERTO TADASHI SAKAZAKI4; LUIZ FERNANDES SILVA DIONISIO5 E ANA ROSA POLO-VARGAS6  1Engenheiro Agrônomo, Prof. Invitado, Universidad Nacional de Cajamarca, (UNC), Av. Atahualpa Nº 1050- Carretera Cajamarca-Baños del Inca, Cajamarca, Perú. [email protected] Agrônomo, Prof. Dr. Associado da UFRR/CCA, Boa Vista, RR. [email protected] Agrônomo, Prof. Adjunto da UFRR/CCA, Boa Vista, RR. [email protected] Agrônomo, Doutorando na UFRR/CCA, Boa Vista, RR. [email protected] Florestal, Doutorando na UFRA, Belém, PA. [email protected] Agrônomo, Graduada na UNC, Av. Atahualpa Nº 1050- Carretera Cajamarca-Baños del Inca, Cajamarca, Perú. [email protected] 1        RESUMO O conhecimento dos parâmetros hídricos de uma cultura é fundamental para o incremento da produtividade sem o desperdício de água. Objetivou-se com o presente trabalho determinar a evapotranspiração (ETc) e o coeficiente de cultivo (Kc) da cultura de feijão-caupi (Vigna unguiculata L.) cv. Novaera, em condições de solo com e sem o uso de cobertura morta. O experimento foi conduzido no campus Cauamé da Universidade Federal de Roraima, em Boa Vista, RR, entre os meses de abril a julho de 2014. A evapotranspiração de cultivo (ETc) foi obtida por meio de lisímetro de drenagem. Os resultados evidenciaram que a ETc do feijão-caupi para ciclo da cultura sem e com cobertura morta foram de 311,0 e 260,4 mm, com valores médios de 3,5 e 3,0 mm dia-1, respetivamente. O estádio fenológico de maior demanda hídrica foi o reprodutivo atingindo valores de 5,4 mm dia-1 em solo sem cobertura e 4,9 mm dia-1 em solo com cobertura. Os Kc's pelos estádios de desenvolvimento, inicial (I), crescimento (II), reprodutivo (III), e final (IV) pelo método de Penman-Monteith foram equivalentes à 0,42; 0,82; 1,60 e 0,79 em solo sem cobertura morta, e 0,30; 0,73; 1,46 e 0,56 em solo com cobertura morta. Semelhante, o método de Jensen-Haise apresentou valores de 0,38; 0,76; 1,31 e 0,61 em solo sem cobertura morta e 0,29; 0,67; 1,19 e 0,42 em solo com cobertura morta. Palavras-chave: Vigna unguiculata. Otimização de uso de água. Consumo hídrico.  MURGA-ORRILLO, H.; ARAÚJO, W. F.; ROCHA, P. R. R.; SAKAZAKI, R. T.; DIONISIO, L. F. S; POLO-VARGAS, A. R.EVAPOTRANSPIRATION (ETc) AND CROP COEFFICIENT (Kc) OF COWPEA CROP IN SOIL WITH AND WITHOUT MULCH COVER IN THE RORAIMA SAVANNAH  2        ABSTRACT The determination of water parameters of a crop during its development is essential to maintain yield without wasting water. This study aimed to determine evapotranspiration (ETc) and crop coefficient (Kc) of cowpea crop (Vigna unguiculata L.) cv. Novaera during the various stages of development in soil conditions with and without mulch. The experiment was conducted in Cauamé, campus of the Federal University of Roraima, from April to July 2014, Boa Vista, Roraima state. Evapotranspiration cultivation (ETc) was obtained by drainage lysimeter, while the evapotranspiration reference (ETo) was estimated by Penman-Monteith and Jensen-Haise methods. The results determined that water consumption of cowpea in soil conditions with and without mulch were 311.0 and 260.4 mm, respectively. For Kc's developmental stages, initial (I), growth (II), reproductive (III), and final (IV), Penman-Monteith method showed values of 0.42, 0.82, 1.60, and 0.79 in soil without mulch, and 0.30, 0.73, 1.46, and 0.56 in soil with mulch, although the Jensen-Haise method showed values of 0.38, 0.76, 1.31 and 0.61 in soil with mulch and 0.29, 0.67, 1.19, and 0.42 in soil with mulch. Keywords: Vigna unguiculata. Optimization of water use. Water consumption 


2021 ◽  
Vol 24 (3) ◽  
pp. 136-142
Author(s):  
Petr Vaculík ◽  
Tomáš Jehlička ◽  
Viera Kažimírová ◽  
Andrea Smejtková

Abstract The article deals with the determination of water consumption at selected dairy farms during milking using automatic milking systems (AMS). The aim was to determine the water consumption during basic activities associated with the AMS use, namely water for cleaning the milking set and water for cleaning and disinfecting the entire milking system at set daily intervals (hereinafter water). The research was carried out at seven farms in the Czech Republic, which house dairy cows of the black-spotted Holstein cattle. The evaluated groups of dairy cows had from 97 to 103 milked cows for the entire monitored period. Based on the performed measurements, it was found that the average amount of water consumed by AMS per 1 litre of milked milk was 0.33 litres. The results show that water consumption is not completely constant during the year. Multiple factors, including performance, the number of non-drinking milk detections, animal health and current climatic conditions, influence it.


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