Studi Interaksi Seng(II) pada Asam Humat Muara Kuang Serta Aplikasinya terhadap Limbah Industri Pelapisan Seng

Telah diekstraksi asam humat dari tanah gambut asal Muara Kuang dengan menggunakan natrium hidroksida dalam kondisi atmosfir nitrogen. Asam humat yang diperoleh dikarakterisasi dengan spektroskopi infra merah, kadar air dan kadar abu untuk selanjutnya digunakan sebagai material untuk mengikat kation seng(II) dalam medium air dan diterapkan untuk mengikat kation dalam limbah industri pelapisan seng. Hasil penelitian menunjukkan bahwa asam humat dari tanah gambut asal Muara Kuang mengandung gugus karboksilat (-COOH) dengan kadar abu sebesar 26,04% (b/b) dan kadar air sebesar 14,16%(b/b). Kation Zn(II) yang terikat pada asam humat hasil isolasi sebanyak 96,79%. Asam humat hasil isolasi dapat mengikat kation Zn(II) dari limbah industri pelapisan seng sebesar 8,814%

Growth of Tiger Grouper (Epinephelus Fuscoguttatus) Juvenile From Wild and Hatchery at Different Type of Feeds

This study aimed to observe the influence of two sources of juvenile tiger grouper Epinephelus fuscoguttatus (Forsskål, 1775) from the sea and the hatchery by several types of food (pellets, tilapia & anchovies). Growing Studies were carried out above 9600 juvenile tiger grouper from two sources namely differing from the sea of 4800 juvenile and 4800 juvenile hatchery from hatching. The design of treament were done by 2x3 with four replications. During the 30 day rearing period, each 5 days is taken sampling total body length (cm) juvenile tiger grouper. The results showed that during the rearing period the value of marine juvenile grouper only high growth in juvenile ate anchovies and tilapia except on day 5 and 30, and could not adapt to the food from the pellet. While in hatchery juvenile tiger grouper had high growth to consume pellets only and could not adapt well to the food of tilapia and except anchovies on day 15th

Simulating urban growth in the George town conurbation

Simulation of land use changes has been discussed at length, with increasing papers proposing new methods to predict urban growth. Simulating urban growth can provide a clearer view of urban expansion which gave huge impact in developing a city. This phenomenon, however, also has driven the encroachment into agricultural and forest land in order to cater urban growth expansion. Therefore, this paper aims to develop an urban growth simulation model using GIS-based CA-Markov approach, incorporated with driving forces of urban growth in the Malaysian context. Land use data based on year 2006, 2010 and 2014 of the study area were prepared in a GIS database and used to develop and validate a CA-Markov Model using Idrisi Kilimanjaro software. The findings indicated new or expanded built-up areas of 2018 are found to be located in close proximity to existing growth centers and settlements.Keywords: CA-Markov; Geograpghic Information Sciences (GIS); Land use changes;Urbanization

Water quality, diversity and distribution of freshwater fishes in, Negeri Sembilan / Nur Hasyimah R. ... [et al.]

The study of diversity and distribution of freshwater fishes at Sungai Sungai Muar in Kuala Pilah, Negeri Sembilan was done on 30-31 January 2011. Cast net and trawl were used in the sampling activities. Species of fishes found during sampling activities includes Cyclocheilichthys apogon, Osteochilus hesseltii, Hampala microlepidota, Puntius gonionotus, Oreochromis mossambicus, Hyposarcus pardalis and Prophagorus nieuhofi. In Sungai Sungai Muar, fishes from family Cyprinidae was dominant with total of 24 individuals from 4 species which include Cyclocheilichthys apogon, Osteochilus hesseltii, Hampala microlepidota and Puntius gonionotus. Diversity and distribution of species was analyzed using diversity index which is Shannon-Weiner and Simpson Index. Based on the analysis provided, the reading shows that Sungai Muar consist of high diversity of fish species with diversity indexes 2.14 (Shannon-Weiner) and 0.75 (Simpson). The most abundant species at the site was Osteochilus hesseltii with 13 individuals while the least abundant species was Prophagorus nieuhofi with one individual only. For water quality observation, the mean of the following data was recorded as the following; temperature was 24.9 °C, the percentage of Dissolved Oxygen (DO) was 58.97 %, the conductivity of water was 68.27 µs and pH was 6.94. Based on the data, we can conclude that the condition of Sungai Muar in Kuala Pilah is Sungai Muar was classiffied as Class I which indicates suitable for very sensitive aquatic species

HUMAN CAPITAL INVESTMENT (HCI) DETERMINANTS AFFECTING THE INSTITUTION’S PERFORMANCE: THE PRACTICALITY OF PARTIAL LEAST SQUARES STRUCTURAL EQUATION MODELLING (PLS-SEM) APPROACH

Purpose of the study: This paper aimed to assess the analysis of the role of human capital investment (HCI) determinants and its remarkable contribution towards the education institution's performance by adapting the Malcolm Baldridge Criteria for Performance Excellence. Methodology: This research adopted a quantitative study and a survey tool comprises of sixty items with seven Likert scale was utilized as an instrument to assemble data from 309 lecturers in UiTM Kelantan. Next to test the research hypothesis data were then analyzed using the Structural Equation Modelling approach on the SmartPLS3 platform. Main Findings: The analysis demonstrated the influences of HCI determinants towards the UiTM performance. The coefficient of determination (R2) value of 66.9% suggested that the variance of institution performance could moderately be explained by the observed variables, namely knowledge, skill, and training. The result also indicates the highest positive significant value for skill towards performance with β=0.283, t-value= 1.981 and p<0.005. It is proven that a persistent skill development significantly contributes to the performance. Applications of this study: The research finding is useful to help the Ministry of Higher Education (MOE) in Malaysia to identify the relevant determinants in improving human capital quality. Novelty/Originality of this study: There were a lot of studies that were conducted involving higher education in Malaysia. But the only limited number of studies was conducted by scholars in assessing the main contribution of human capital investment factors towards the institution's success

Current PI-Gain Determination for Permanent Magnet Synchronous Motor by using Particle Swarm Optimization

This paper proposes the modern approach using Particle Swarm Optimization (PSO) algorithm in determining the ideal value of Proportional Integral (PI) gain for current controller of Permanent Magnet Synchronous Motor (PMSM). Controlling the torque of PMSM and optimizing the PI-gain are the main objectives of this project. The PI controller is employed to control the speed and the torque of the PMSM with the implementation of Field Oriented Control (FOC) method. This new proposed PSO technique proved that the ability in reducing the torque ripple compared to conventional heuristic method. The ideal PI-gain acquired from the PSO was included into current PI controller. From the result obtained, it shows that the viability of the PSO technique is the best to determine PI-gain for current controller

Literature instructions in secondary schools: a case study

Literature component has been made clear by the Ministry of Education (2012) in Malaysia Education Blueprint 2013-2025 to promote active learning and enhance learning. However, some studies show that learners might not be interested in literature lessons in schools for many different reasons. Their reactions and responses during the literature lessons show their lack of interest. This research was undertaken to investigate learners’ reactions during literature lessons. This qualitative case study was carried out on two mixed ability classes, consisting of 53 high school learners from two schools in Johor Bahru district and four English teachers. Lessons were observed and videotaped, and the participant-teachers were interviewed and audiotaped to seek responses on their learners’ reactions and responses during lessons. This research provides new insights on how learners perceive literature lessons in schools which promotes language learning