Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
The purpose of this study was to try the effect of the use of earthworm meal and chlorella vulgaris on the growth rate, survival rate and feed efficiency of tilapia. The research method is experimental with completely randomized design (CRD) with four treatments, one control and three replications. The treatments used were: (i) S. Vulgaris at 25%, Astaxanthin at 0.2% and fish meal by 50%, (ii), 25% fishmeal, 50% S. Vulgaris and Astaxanthin by 0,2%, (iii) 40% C. Vulgaris, 0.4 Astaxanthin and 20% fishmeal (iv) 40% C. Vulgaris, 0.4 Astaxanthin and 30% fishmeal. Analysis of the data using analysis of variance (ANOVA) and to know the difference between treatments using Duncan's Multiple Range Test. Results showed the administration of C. Vulgaris and Astaxanthin on feed rations provide a significantly different effect (p > 0.05).The results of this research showed that the highest feed efficiency was 29.45 % highest survival rate was 86.67 % obtained on treatment iii. The highest absolute weight and length growth was 4.96 g and 0.9 cm on treatment (ii). Water quality of red tilapia rearing media was temperature range between 25-28 °C, pH 7-8, dissolved oxygen 4-5 mg/L and ammonia 1.5 to 3.0 mg/L
The purpose of granting an extension of time is to fix the period by which the date of completion should be extended, depending on the incidence of the events concerned and measured by what is fair and reasonable provided the contractor submit a notice of delay to apply for the extension. This study aims to advocate the contractor in minimizing mistakes frequently committed during extension of time application. Quantitative research approach using survey form among architects registered with Malaysia Institute of Architects member list with office located in Kuala Lumpur was adopted. Data collected revealed that failure to issue notice of delay which caused outright rejected was the main common mistakes. This study concluded that to minimize the common mistakes that contractor frequently committed during submission, contractor must be equipped with good contractual knowledge and good record keeping practice
Radio propagation is essential for emerging technologies with appropriate design, deployment and management strategies for any wireless network. Empirical propagation models have found favour in both research and industrial communities owing to their speed of execution and their limited reliance on detailed knowledge of the terrain. These models are used extensively in signal prediction and interference analysis. High prediction errors of these empirical models arise when they are being deployed to an environment different from the one they are initially designed for. This work therefore provides the error bounds on the efficacy of five different empirical models at predicting path loss for Ekiti and Lagos states in Southwest, Nigeria. The Ekiti State Television (EKTV) was employed for Ekiti State while Lagos State Television (LTV) was used for Lagos State. The models used for this analysis are Okumura-Hata, Hata- Davidson, COST-231, CCIR and ECC-33 models. Measurement of TV signal path loss was conducted in Lagos and Ekiti States. The measured path loss for two routes in Lagos and Ekiti States was compared with the selected predictive path loss models. The performance of the predictive path loss models were evaluated using the mean error and root mean square error. The Hata-Davidson predictive model was discovered to have the least error bounds in all the routes considered for the two States
Concrete construction process faces a lot of problems seeking them continuously can raise the efficiency of construction process and concrete members. One of the major problems which occurred in concrete structure projects is the movement of the wood mold during construction, the concrete member may deform and case a deterioration of other surrounding structural members. This study investigates one of the critical problems in the building of Al-Masbah Telecom Center Company in Iraq. The twisting of the upper ends of the columns 25 mm was occurred while the lower end remains fixed, this rotation was achieved due to the movement of the wooden mold during construction process. This certain problem required re-analysis and extensive study to take a decision regarding the adequacy of column capability to carry applied load and redistribution of stresses in all structural members. The structural calculations revealed that there was no effect due to end twisting on column capability to carry the applied loads and structure stability. This study focuses on repairing one of a telecommunications concrete buildings in Baghdad (capital of Iraq); the damage in building was carried out due to twisting of columns as a result of movement in the mold during construction. This study includes an illustration of the damage causes and repairing methods. It is also includes a theoretical calculations of capacity of these columns after damage occurrence, and comparing the results with capacity of undamaged columns. This study also dealing with a reanalysis of the structure carrying capacity for applied loads
Aloe vera is considered as member of the Liliaceae family and Aloe Chinensis Baker is one of the species that is widely cultivated in Pontianak, Indonesia. The quality parameters of Aloe vera juice include pH, refractive index, vitamin C and density. The objectives of this study to investigate the influence of Sodium benzoate-Citric acid on the quality of Aloe vera gel juice, including pH, density, refractive index and vitamin C, as well to determine the storage time by using the Arrhenius approach. This study used 3 L of Aloe vera gel juice added with 1.8 g of Sodium benzoate and 6 g of Citric acid, stirred until homogenous then divided into bottles of 200 mL each for analyzing pH, refractive index, density, and vitamin C contents at the storage temperature of 30oC, 40oC and 50oC with the storage time of 0, 10, 20, 30, 40, 50 and 70 days. The determination of Aloe vera gel juice storage time was calculated using linear regression equation of the parameter with the lowest amount of activation energy. The obtained equation to determine the storage time was Ln k = -1233.1(1/T) – 0.8438 with the total activation energy of vitamin C is 2450.1697 cal/mol
