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Listing 75 - 20 of 1962 results.

Implementable Approach of Addressing the Challenges of Cloud Based Smart City Using IoT

Research Article
Author(s): E.N. Ganesh
Journal: Review of Energy Technologies and Policy Research

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Abstract
Implementation of IOT in smart city is a complex issue which requires advanced networking and communication technology and specifically cloud based technology is required. In this paper we introduce the general notion of IoT hubs and then Propose a algorithm to address the challenges faced to implement cloud based SMART Cities. We addressed two issues, one with integration of public and private cloud and another one ability to handle and exchange the data easily. This paper briefly describes an approach to address these issues and discuss about deploying cloud-based Smart City hubs.
Contribution/ Originality


Energy & Environmental Sciences » Review of Energy Technologies and Policy Research » Month: 12-2017 Issue: 2

Diversity and Growth Characteristics of Tree Species in the Botanical Gardens, University of Ibadan, Nigeria

Research Article
Author(s): Aderounmu A.F, Q.A Onilude, A.T Oladele
Journal: Journal of Forests

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Abstract
This study assessed the diversity and growth characteristics of tree species in University of Ibadan Botanical Gardens with a view to provide data for improved management of the garden. Ten plots (25m x 25m) were sampled randomly in the garden. Growth parameters evaluated included: total and merchantable height, diameter at breast height, diameters at middle, base and top. Descriptive statistics of the growth characteristics of the tree species revealed a mean volume of 20.03+ 2.91m3/ha and 0.45+0.79m2/ha for basal area. Afzelia africana had the highest tree volume (72.42m3) followed by Vitex doniana (50.10m3) while the least volume was observed in Terminalia cattapa (5.57m3). Cedrela odorata (15.3%) had highest frequency of individual trees followed by Delonix regia (4.2%) while 12 species had single tree each (1.4%). Low Slenderness coefficient (SLC) of < 70 showed that most tree species in the garden are not susceptible to wind induced damage. Only Enterolobium cyclocarpum possessed moderate SLC which could be vulnerable to wind velocity despite some form of resistance. Further research centered on tree form and growth parameters need be encouraged for improved management of the botanical garden.
Contribution/ Originality
This study documents the unique characteristics of tropical trees that are important in sustainable management of Botanical gardens for: tree diversity conservation, ecological restoration and maintenance in developing tropical countries.
Agricultural Sciences » Journal of Forests » Month: 12-2017 Issue: 2

Forecasting Goat Milk Production in Turkey Using Artificial Neural Networks and Box-Jenkins Models

Research Article
Author(s): Ferhan KAYGISIZ, Funda Hatice SEZGIN
Journal: Animal Review

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Abstract
The demand for goat milk has gradually increased in Turkey in recent years and dairy goat breeding began to be seen as an alternative investment area. The aim of the study is to create the data that will contribute to policy formulation in the stockbreeding industry by making a 10-year forecast of output pertaining to the goat milk production in Turkey. In the study, the annual data of the goat milk production in Turkey during the time period 1961 and 2016 obtained from Turkish Statistical Institute and Food and Agriculture Organization was utilized. Box-Jenkins estimation models and artificial neural networks model were used to forecast the production of goat milk. It was identified that artificial neural networks model gave the best result and prospective estimations were made through this model. As a result of the study, the projected value of milk production for 2026 was found to be 495,536.1 tons. Following the forecasts, it was calculated that the average rate of increase in the goat milk production will be 0.12%.
Contribution/ Originality
The study was conducted to estimate the amount of goat milk production in Turkey until 2026. Box-Jenkins and artificial neural networks models were used as prediction models. The results of this study contribute in the literature about the goat breeding production policies.
Agricultural Sciences » Animal Review » Month: 09-2017 Issue: 3

Sooty Mold on Lemon Trees - First Recording from El-Beida City, Libya

Research Article
Author(s): Zahra Ibrahim El-Gali, Mariam Saleh Mohammed
Journal: Review of Plant Studies

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Abstract
Sooty molds are a lineage of follicolous fungi that cover the upper surface of leaves with black mycelia. Sooty molds do not infect plants, but grow on surfaces where honeydew deposits accumulate. Sooty moulds fungi proliferate in abundance on the foliage of lemon subsisting on the honeydew secreted by insects. whiteflies was found in different stages on lower leaf surface. The black color was checked and Alternaria alternata described and reported as new recorded on lemon leaves were infected with white fly in El-Beida, Libya.
Contribution/ Originality


Agricultural Sciences » Review of Plant Studies » Month: 06-2017 Issue: 1

The Impact of Human Activities on the Ndivana Forest Reserves, Kwaya Kusar Local Government Area, Borno State, Nigeria

Research Article
Author(s): Anthony Dami, Balami Huali Daniel, Garba, S.S
Journal: International Journal of Geography and Geology

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Abstract
The focus of this study is to assess the effects of human activities on the Ndivana forest Reserves in Borno State. The types of data collected for the study involves the satellite imageries of Landsat (MSS) 1976, 1986 (TM) and Enhanced Thematic Mapper plus (ETM+) 1999, 2005, 2009 and 2013 respectively, from Global Lat-sat Cover Facility (GLCF) on Earth Science data interface. The GIS software used for the analysis of the datasets include: ILWIS 3.3a to geo-reference and image classification while, ArcGIS 10.1 was used for area calculation and over lay operations. The study adopted six land use and land cover classification scheme (namely, agriculture, bare surface, shrub/grassland, swamp, settlement and wood land). The major findings reported that the land use and land cove change for the period of 37years showed an increase and declining trends. For example, it was observed that agriculture increases in 1986 and 2009 with 3.84km2(7.21%) and 3.86km2(7.23%) because of the increase in human population that engaged in farming activities in the area and decreases in 2013 with 1.40km2(2.61%) due to increase in bare surface. Settlement also increases sharply in 1999 with 7.81km (14.75%) and decreases to 4.17km (7.79%) in 2013 due to the problems of insecurity in the region as many communities relocated to a safer environment. The implication of this change on the forest ecosystem therefore, could lead to further environmental degradation and biodiversity lost in the area.
Contribution/ Originality
This study contributes in the existing literatures and use geo-information techniques. It’s one of the very few studies which investigated the effects of human activities in the reserve. The primary contribution revealed landuse/cover change in the area. It documents GIS application for management of the reserve.
Energy & Environmental Sciences » International Journal of Geography and Geology » Month: 06-2017 Issue: 6

Porous Carbon Materials for Clean and Sustainable Energy

Research Article
Author(s): Kelvii Wei GUO
Journal: Review of Energy Technologies and Policy Research

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Abstract
Carbon materials mostly involved in new alternative clean and sustainable energy technologies have been playing more and more significant role in energy storage and conversion systems, especially for the carbon porous materials, because carbon porous materials with structures can provide large surface areas for reaction, interfacial transport, or dispersion of active sites at different length scales of pores and shorten diffusion paths or reduce diffusion effect. Therefore, the soft, hard templated and hierarchically ordered strategies employed to fabricate porous carbon materials are marked along with the relevant advantages and disadvantages aim to provide the vital information about the growing field for future energy to minimize the potential environmental risks. Carbon porous materials with attractive structures as ideal candidates for the versatility and feasibility of application to energy storage and conversion should not only be realized, but also much effort has to be devoted to systematic studies on the relationship between physicochemical properties of these materials and their performances in energy conversion and storage to more efficiently stimulate further developments in this fascinating area, alongside eco-technologies that will ensure minimal environmental impact.
Contribution/ Originality
This study contributes in the existing literature of carbon porous materials with attractive structures ordered by various techniques for future eco energy.
Energy & Environmental Sciences » Review of Energy Technologies and Policy Research » Month: 12-2017 Issue: 2

Physicochemical and Rheological Characterization of Goat Whey

Research Article
Author(s): Freire, L.A.C, Pereira, C.G
Journal: Journal of Food Technology Research

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Abstract
The whey is a product with high nutritional value, but it is too wasted. In this sense, this study aims to evaluate the physicochemical and rheological properties of goat whey. Content of total protein, lactose, fat, ash, total solids, humidity, pH and density of goat whey were determined. The whey rheological behavior was evaluated in different conditions of temperature and share rate. Two rheological models were used to fit the behavior of the goat whey and the activation energy was determined by Arrhenius equation. The characterization of goat whey showed satisfactory results. The increase in temperature resulted in a decrease of shear stress and apparent viscosity of goat whey, while the reverse was observed for strain rate increased. Ostwald-de-Waelle model presented a satisfactory arrangement with R² above 0.99 for all temperatures studied. The goat whey presented behavior index larger than 1, indicating that this is a dilatant fluid.
Contribution/ Originality
This study contributes in the existing literature about physicochemical properties of dairy products, focusing in the physicochemical and rheological properties of goat whey. Up to now, nothing was discussed about that. The study also documents that the goat whey is a dilatant fluid with small effect of temperature on viscosity.
Agricultural Sciences » Journal of Food Technology Research » Month: 06-2018 Issue: 1

EFL Teachers Response to the Ecological Expectations of the Teaching Context at a Saudi University

Research Article
Author(s): Ragia Magdeldin Youssef, Nadia Shukri
Journal: International Journal of Education and Practice

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Abstract
This paper presents the analysis of a case study on EFL experienced teachers in the English Language Institute of King Abdul Aziz University in Jeddah, Saudi Arabia. The aim of the study is to investigate if the expectations of the environment affects the intentional activity and the agency of the teachers in their classrooms. The focal area of the study is to identify ways intentional classroom activity of the teachers have changed according to the expectations of the different agents within the mentioned EFL ecological context despite the contradiction of this change with the teachers’ cognition coming from their earlier education and practical experience. As for the research method, it is a case study where two semi-structured interviews were conducted with two experienced teachers. The results of these interviews demonstrate a positive correlation between the contextual expectations of the educational institution environment with all its constituents and the agency/the intentional activity of the teachers even if this intentional activity contradicts with the teachers’ former knowledge and practice. Further studies using varied research tools is required to investigate into how teachers’ practice is influenced by the expectations of the educational ecological setting.
Contribution/ Originality
This study is one of very few studies which have investigated the relationship between the contextual expectations of the educational institution environment in Saudi Arabia with all its constituents and the agency/the intentional activity of the teachers even if this intentional activity contradicts with the teachers’ former cognition and practice.
Arts and Education » International Journal of Education and Practice » Month: 01-2018 Issue: 1

Teacher Perceptions of the Impact of Peer Learning in their Classrooms: Using Social Interdependence Theory as a Model for Data Analysis and Presentation

Research Article
Author(s): Maria Cockerill, Nicole Craig, Allen Thurston
Journal: International Journal of Education and Practice

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Abstract
Peer tutoring is a structured process of co-operative learning, supported by social interdependence theory shown to have cognitive and affective level benefits. During a RCT, this study explores teacher perceptions (n=62) of effects of co-operative learning, including implementation issues, using a mixed methods approach during a 16-week peer tutoring intervention in 58 classes (10 secondary/high schools) in England. Data suggested strengthened peer relationships enhanced student learning. Teacher perceptions remained consistent and are congruent with social interdependence theory and research validating the theory. Implications for research, theory, practice and policy are discussed. Research was supported by Educational Endowment Foundation grant: Spring2012-105.
Contribution/ Originality


Arts and Education » International Journal of Education and Practice » Month: 01-2018 Issue: 1

Performance of Growing Grasscutters Fed Diets with Varying Levels of Soybean Meal Replaced by Brewers Dried Grain

Research Article
Author(s): G. S. I. Wogar, M. I. Anya, P. Benson
Journal: International Journal of Sustainable Agricultural Research

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Abstract
The objective of this study is to contribute to knowledge on the intensive rearing of the grasscutter (Thryonomis swinderianus), which is cherished for its meat and as a source of protein. The study, which involves five treatments and four replicates in a Completely Randomized Design, aims at determining the optimum performance of growing grasscutters fed diets in which soybean meal is replaced by brewers dried grain. Twenty female grasscutters, four weeks old, and weighing between 1312g and 1315 g, were randomly allotted in groups of four to five treatment diets, in which soybean meal was replaced at 0, 25, 50, 75, and 100% levels by brewers dried grain. The grasscutters were supplied water and elephant grass (Pennisetum purpureum) ad libitum. All data was subjected to the analysis of variance, and significantly different means were separated using Duncan's Multiple Range Test. Results indicate significantly (P=.05) superior performance in respect of average daily forage intake (278.70g), average daily total feed intake (75.54g), final body weight (2145.30g), average daily weight gain (9.79g), feed conversion ratio (7.73) and cost to gain ratio (0.34) for grasscutters in the 50% diet group. It was concluded that the best growth performance was obtained when grasscutters were fed a diet in which 50% of soybean meal was replaced by 50% of brewers dried grain.
Contribution/ Originality


Agricultural Sciences » International Journal of Sustainable Agricultural Research » Month: 12-2017 Issue: 4

Competency Assessment of Veterinary Medicine Students Who are Trained in Basra Veterinary Hospital - 2017

Research Article
Author(s): Mudhar A. S. Abu Tabeekh
Journal: Animal Review

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Abstract
This study designated to evaluate the competency of veterinary students who are trained in Basra Veterinary Hospital-Basra governorate- Iraq. In the student life, performance evaluations should revealed areas of excellence. Very little research has considered in training evaluation in a veterinary sciences. The test was carried out by the students of the Veterinary Medicine College- Basra University from the third and fourth stages who succeeded to the fourth and fifth stages. One hundred and two students participated in the performance evaluation, 47 students from the fourth stage and 55 from the third stage. Totally, there were 100 multiple questions presented to the participants. The questions included 13 aspects of veterinary sciences disciplines. The results of this study revealed that the evaluation of the competency of veterinary students in the fourth stage was higher compared to the third stage by comparing the percentage of correct answers for both groups (65.86 and 60.95) respectively. In addition, the two groups recorded high percentage in physiology correct answers and low percentage in animal hygiene for the fourth year students and infectious diseases for the third year.
Contribution/ Originality
Very little research has considered in training evaluation in a veterinary sciences. This study contributes to the educational literature by assessing the level of the trainee students using the method of direct questioning, which represents a good method in evaluating the veterinary performance to improve skills of veterinary undergraduates.
Agricultural Sciences » Animal Review » Month: 12-2017 Issue: 4

Isolation and Screening of Phosphate Solubilizing Bacteria from Rhizosphere of Tea (Camellia Sinensis L.) on Andisols

Research Article
Author(s): Betty Natalie Fitriatin, Amirah Widyasmara, Mahfud Arifin, Rina Devnita, Anny Yuniarti, Rachmat Haryanto
Journal: International Journal of Sustainable Agricultural Research

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Abstract
Andisols is a soil with high retention of phosphate and cannot be absorbed by plants. Some of soil bacteria have the ability to solubilize P and make it available to growing plants are known phosphate solubilizing bacteria (PSB). The research aims to get the kinds of bacteria potential of PSB in the tea plantation. The experiment was conducted at the Laboratory of Biology, Faculty of Agriculture, Padjadjaran University from February 2016 to April 2016. Selection taken from five point blocks with a depth of 0-30 cm and 30-60 cm decision to the topography peaks and slopes. Obtained 23 isolates taken PSB and five isolates with the highest qualitative P solubility test in the soil. The experimental was conducted using Completely Randomized Design, which consists of ten treatments, sterile and non-sterile soil, and five isolates. Incubation was performed for 21 days and the total test bacteria, pH, and P-available every 7, 14, and 21 days. The results showed the best bacterial isolates that capable of solubilize phosphate was taken from A6 block located in the north area of the plantation with a depth of 0-30 cm and is at the peak topography with the ability to dissolve P in the soil is not sterile at 0.997 ppm on the 14th day.
Contribution/ Originality


Agricultural Sciences » International Journal of Sustainable Agricultural Research » Month: 12-2017 Issue: 4

Problems Confronting Shea Butter Industry in Nigeria

Research Article
Author(s): Sanusi Mohammed Kabiru, Adeloye, Florence Fadeke, Adegebo Samson Adegbemi
Journal: International Journal of Sustainable Agricultural Research

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Abstract
The Shea sector of the Nigeria economy has the potential to generate wealth and employment for large number of people at the same time. However, this is yet to be seen as the industry is currently underexploited. This could be attributed to many problems affecting the entire value chain of the industry. The study reviewed the literatures as well as authors experiences on the field using participatory tools like in-depth interview, focus group discussion and observations to identify the problems confronting the entire Shea butter industry and proffer solutions to them. The problems identified by the study includes indiscriminate cutting of Shea trees, lack of storage facilities for the kernel and butter, poor quality butter produced, lack of modern processing technology, poor infrastructural facilities like road, electricity and water. Others are lack of access to market, no credit facilities and, lack of government assistance and seasonality of Shea kernel. The study recommended that relevant government agencies should providing an enabling environment such as water, electricity, modern processing technologies, storage facility, good roads and make by-laws to stop indiscriminate cutting down of Shea trees to ensure sustainability of the Shea industry. Bank of industry and commercial banks should give out loan to Stakeholders along the value chain line to stimulate Shea butter production. The stakeholders in the industry should also form functional cooperatives to collectively solve their problems.
Contribution/ Originality
This study is one of very few studies which have investigated the problems confronting the Shea butter industry by looking at the Stakeholders along the value chain of production rather than looking at only the processors in a view to proffer solutions and inform policies planning on the way forward.
Agricultural Sciences » International Journal of Sustainable Agricultural Research » Month: 12-2017 Issue: 4

Comparison of Psychiatric Comorbidity and Quality of Life (QOL) in Persons with Tuberculosis and People Living with HIV in South-South Nigeria

Research Article
Author(s): Nkporbu A. K., ANUSIEM O.O., AGOGBUO M. O.
Journal: International Journal of Medical and Health Sciences Research

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Abstract
BACKGROUND: Tuberculosis and HIV are two chronic infective medical diseases commonly associated with psychiatric co-morbidity, which further affect the quality of life of the sufferers. AIM: The study was to determine and compare the relationship between psychiatric co-morbidity and quality of life in persons with tuberculosis and PLWHIV. METHODOLOGY: Two hundred and thirty subjects living with HIV and 140 subjects with tuberculosis were recruited. Those with clinically chronic conditions, or comorbid medical condition and treatment Resistant tuberculosis were excluded. Subjects were further administered with the study’s instruments including the socio-demographic questionnaire, GHQ-12, the brief version of the WHO Quality of Life instrument (WHOQOL-Bref) and WHO Composite International Diagnostic Interview (WHO CIDI). Results were presented via descriptive and analytical methods. RESULTS: The study found a prevalence of psychiatric co-morbidity of 19.8% among PLWHIV and 28.4% among subjects with tuberculosis (p = 0.004). For the PLWHIV, domain scores for quality of life were as follows; 60.71±15.57, 62.34±26.32, 61.57±25.04, 55.15±14.00 and 65.81±21.84 while tuberculosis was 50.97±13.87, 57.22±46.36, 54.51±45.04, 50.01±15.10 and 49.34±21.84 (p = 0.001) for physical, psychological, social relationship, environment domains and general health facet respectively. Furthermore, presence of psychiatric comorbidity significantly inversely correlated with quality of life among persons with both medical diseases. CONCLUSION: The study found a statistically significant higher prevalence of psychiatric co-morbidity and lower quality of life among the subjects with tuberculosis compared with PLWHIV. Findings suggest strongly that in managing patients with these conditions, attention should be paid to their mental health and subjective quality of life.
Contribution/ Originality
This study contributes in the existing literature about the sufferers of chronic infectious medical diseases and their vulnerability to psychiatric co-morbidity. The study documents explanations as to why some chronic medical conditions may show slow response to instituted management. The study uses new estimation methodology of Quality of life measurement and demonstrates the direct relationship between psychiatric co-morbidity and quality of life. Finally, the study contributes to logical analysis and emphasis that evaluation of patients suffering from chronic medical diseases must be holistic enough to include their mental wellbeing.
Medical Sciences » International Journal of Medical and Health Sciences Research » Month: 01-2018 Issue: 1

Predictive Models for Cutting Force in Turning Tools Based on Response Surface Methodology

Research Article
Author(s): Ezeanyagu, P. I., Okafor, C. E., Omenyi, S. N.
Journal: Review of Industrial Engineering Letters

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Abstract
This paper presents the development of predictive models for feed cutting force component when turning mild steel rods at 90owith cutting tools in a local lathe shop. The predictive models were formulated with cutting condition kept dry. Experimental plan was based on Rotatable Central Composite Design (RCCD) and cutting forces generated in the feed direction was measured using a dynamometer. Analysis was performed on the generated data for both tool-work piece combination and feed rate and its squared effect is found to influence the response variable greatly. However, other factors and their interactions provide secondary contributions. Next, the predicted models were compared with the measured feed cutting forces and an agreement established. The coefficient of determination R2 values of the models gave 76% and 79% respectively, which indicate that the predicted models could adequately describe the process within the conditions that were being studied.
Contribution/ Originality
This study contributes in the existing literature by proffering simplistic and cost effective cutting force model based on a planned experiment and statistical methodology.
Engineering » Review of Industrial Engineering Letters » Month: 03-2018 Issue: 1

Antibacterial Activity of Streptomyces Tunisiensis Mg520500 Isolated from Soil Samples

Research Article
Author(s): Saad AM Moghannem
Journal: The Asia Journal of Applied Microbiology

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Abstract
In the present study seven agriculture soil samples were collected from Dakahlia Governorate, Egypt. Twenty five actinomycete isolates were purified and selected according to their culture characteristics on starch nitrate agar medium. These purified isolates were examined for antibacterial activity against multidrug resistant bacteria (MDRB). Gram positive (E. faecalis and MRSA) and Gram negative E. coli. Among all tested actinomycete isolates only SA-13 isolate could inhibit the growth of all tested bacteria. All morphological, physiological and biochemical results of SA-13 isolate indicated that it belongs to the genus Streptomyces. The comparative analysis of 16S rDNA gene sequence and phylogenetic relationship showed that SA-13 isolate lies with strain Streptomyces tunisiensis CN-207. SA-13 submitted to the GenBank NCBI with the accession number, MG520500. Different optimization parameters were studied to enhance the antibacterial activity. The optimum conditions were temperature 30ºC, pH range7-8, inoculum size 6% v/v on modified riched medium and shaking at 200rpm. Cytotoxic activity of crude extract showed IC50 200µg/ml. Our results proves that; this isolate exhibit antibacterial activity against MDRB. Additional studies of purification and identification of bioactive compound may be useful for discovering a novel antibacterial compound.
Contribution/ Originality
This study documents Streptomyces tunisiensis SA-13 is powerful soil actinomycetes having a broad spectrum activity against resistant strains of pathogenic bacteria (ESKAPE).
Biological Sciences » The Asia Journal of Applied Microbiology » Month: 03-2018 Issue: 1

Probiotic Lactobacterin-Tk2 Therapeutic and Prophylactic Efficiency

Research Article
Author(s): Tulemisova Zh.K., Kasenova G.T., Muzapbarov B., Myktybayeva R.Zh., Boranbayeva T.K., Omarova A.B.
Journal: International Journal of Natural Sciences Research

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Abstract
Annotation. The therapeutic and prophylactic efficacy of the “Lactobacterin-TK2” probiotic for correction of clinical and microbiological changes in diarrhea of calves under farming conditions has been studied. The therapeutic efficacy showed that the drug product results in complete recovery. Findings on the calves' productivity showed that animals in the experimental groups grew more intensively than animals in the control group during the drug product administration by calves. Use of “Lactobacterin-TK2” probiotic in the treatment and prevention of gastrointestinal infections in calves has provided 100% therapeutic and preventive efficacy. We believe that the effect has been obtained due to the sanitation of the animals intestines from pathogenic flora by suppressing of pathogenic and conditionally pathogenic bacteria reproduction with lactobacilli as a result of their antagonistic activity and colonization of the intestine freed ecological niche with normal microbial flora, stimulation of humoral and cellular immunity factors, level of nonspecific resistance of the organism, activation of metabolic processes, normalization of intestinal microbiocenosis in calves. All this immediately influenced the improvement of digestion processes, which led to more intensive growth and development of animals.
Contribution/ Originality


Engineering » International Journal of Natural Sciences Research » Month: 01-2018 Issue: 1

Utilization of Fish and Mango Wastes on Biological Silage Production

Research Article
Author(s): Jose Carmen Ramirez, Ranferi Gutierrez, Jose Armando Ulloa, Petra Rosas, Gerardo Torres, Pedro Ulises Bautista
Journal: Current Research in Agricultural Sciences

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Abstract
The aim of this study was to demonstrate the utilization of mango and fish wastes in biological silage production. Six treatments containing different levels of fish and mango wastes, sugar cane molasses and corn stover were inoculated with 4 % of Lactobacillus sp. B2 strain and incubated 15 days at 30 °C. The pH values of silages varied from 4.39 to 4.70 and the lactic acid content between 2.96 to 4.42 %. Silages showed the best acidifying at 7 day of fermentation; also they further increased the lactic acid bacteria counts and decreased the coliforms bacteria. Crude protein, ethereal extract and minerals values were higher in treatments with the upper level of fish wastes. The silage with the higher corn stover showed the upper crude fiber value and the lower in vitro dry matter digestibility. Contrary, the high inclusion level of fish wastes resulted in the highest dry matter digestibility. In conclusion, the combination of fish and mango wastes is a good alternative to produce biological fish silage as an ingredient for ruminants feed. The process of production is simple and environmental friendly.
Contribution/ Originality
The present study contributes to knowledge in the use of mango and fish wastes to produce silage. The findings show that silage can be evaluated in ruminants feeds for increase the added value and avoid the environmental impact of waste landfill sites.
Agricultural Sciences » Current Research in Agricultural Sciences » Month: 03-2018 Issue: 1

Dynamic Simulation and Modeling of a Novel Combined Hybrid Photovoltaic-Thermal Panel Hybrid System

Research Article
Author(s): S. Sami, C. Campoverde
Journal: International Journal of Sustainable Energy and Environmental Research

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Abstract
A novel combined concept and simulation model of a hybrid photovoltaic-thermal solar panel hybrid system are presented. This concept is developed to enhance the energy conversion efficiency of the PV cell and utilize excess thermal energy dissipated by the conversion process to produce domestic hot water. A heat transfer and fluid flow two dimensional dynamic model was developed to describe the behavior of a combined photovoltaic cell-thermal panel hybrid system under different solar irradiance, material properties, and boundary conditions. The model is based on dynamic mass and energy equations coupled with the heat transfer coefficients, and thermodynamic constants as well as material properties.
Contribution/ Originality
This paper presents a significant contribution into the development of a novel hybrid system of solar photovoltaic-thermal solar that can significantly enhance the energy conversion efficiency of the solar photovoltaic solar panels, produce electricity as well as hot water for domestic or industrial applications.
Energy & Environmental Sciences » International Journal of Sustainable Energy and Environmental Research » Month: 03-2018 Issue: 1

Construction and Application of Water Resource Accounting Information System in Taiwan

Research Article
Author(s): David Han-Min Wang, Chih-Yuan Huang
Journal: International Journal of Business, Economics and Management

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Abstract
Since the last decade, rapid industry growth and booming world population increase the demand of water resource which brings out severe problems on water supply. In the Global Risk Report 2015 published by the World Economic Forum, water resource was ranked the greatest risk to the world. Taiwan is in 18th place in the UN global ranking among water-scarce countries. However, Taiwan has not established an integrated water resource information system to provide useful information to policy-makers and resource users. Therefore, this study adopts the international conceptual framework for water accounting to construct a water resource accounting information system tallied with Taiwan’s economic and policy conditions. The system is expected to provide useful information on water resource assets, liabilities, revenues and cost for economic sustainability. This study uses the case of Liyutan reservoir in Taiwan to illustrate the usefulness of the accounting information system which indicates new accounting research directions on water resource.
Contribution/ Originality
The paper's primary contribution is constructing the first water resource accounting information system in Taiwan by using the theories and techniques of financial accounting, and verifies the feasibility of this study with actual cases. This system contributes a lot to sustainable use of regional water resources.
Economics » International Journal of Business, Economics and Management » Month: 01-2018 Issue: 1