11 research outputs found

    Kerangka kemahiran employability senibina graduan politeknik

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    Sehingga tahun 2014, hampir seratus peratus graduan diploma politeknik Malaysia diterima bekerja di pasaran pekerjaan Malaysia. Namun begitu, terdapat peningkatan tren pengangguran dalam kalangan graduan diploma senibina politeknik sejak tahun 2012. Salah satu punca kepada peningkatan jumlah pengangguran ini disebabkan oleh ketidak selarian antara kemahiran employability yang diperlukan oleh graduan senibina dan pihak firma binaan. Penekanan terhadap kemahiran employability yang bertepatan mengikut bidang penting dalam membantu graduan memahami dan mengaplikasikan kemahiran tersebut di alam pekerjaan. Kajian ini dijalankan bertujuan untuk menghasilkan kerangka kemahiran Employability Senibina (Ar–ES) bagi graduan diploma senibina politeknik yang memenuhi keperluan pihak firma binaan. Kajian ini turut bertujuan untuk mengenal pasti konstruk dan dimensi Ar–ES yang dominan diperlukan responden kajian. Kaedah gabungan penerokaan digunakan melibatkan sampel seramai 285 orang graduan diploma senibina politeknik dan 226 orang responden mewakili majikan firma binaan yang terdapat di Malaysia. Analisis data mendapati lima konstruk dan tujuh belas dimensi Ar–ES telah dikenal pasti. Konstruk etika profesional merupakan konstruk paling dominan diperlukan oleh graduan (logit= -0.19) dan pihak majikan (logit= -0.17). Hasil analisis Differential Group Functioning (DGF) mendapati tidak terdapat perbezaan yang signifikan antara graduan senibina dan pihak majikan bagi kesemua konstruk dan dimensi kerangka Ar–ES yang dominan diperlukan. Pengkaji turut mendapati bahawa kerangka Ar–ES yang diuji bersifat unidimensi dan disahkan secara empirikal dengan memenuhi kriteria analisis Principle Component Analysis (PCA). Di akhir kajian, pengkaji telah menghasilkan kerangka Ar–ES untuk graduan politeknik bagi memenuhi kehendak firma binaan Malaysia. Penghasilan kerangka ini diharap dapat membantu meningkatkan kebolehpasaran graduan diploma senibina di Malaysia dan menangani isu pengangguran dalam kalangan mereka

    Optimization of polymer blend electrolytes with tuneable conductivity potentials

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    The potential of electrolytes’ performance in electrochemical devices is among the leading research. There are several ways to improve the conductivity of electrolytes, including the employment of additive materials and polymer blends. This research aims to improve the conductivity of a polymer blend with quasi solid state electrolyte. Poly-methyl methacrylate (PMMA) and poly-vinylidene fluoride (PVdF) possed great electrochemical stability and thermal stability. Hence, these materials were chosen as the target polymer for the synthesis of the polymer blend. The electrical impedance spectroscopy (EIS) analysis showed an optimum conductivity value of 3.44 106 Scm1 with the ratio of PMMA: PVdF (70:30) at ambient temperature. The dependent temperature of PBE was also analyzed to prove that the conductivity increases with the increment of temperature and low activation energy (Ea). The thermogravimetric analysis (TGA) shows the stability of PBE up to 651 ◦C. Through this research, there are several different concentrations of PBE to investigate the stability of PBE with great value in the conductivity performance

    Optimization of polymer blend electrolytes with tuneable conductivity potentials

    Get PDF
    The potential of electrolytes’ performance in electrochemical devices is among the leading research. There are several ways to improve the conductivity of electrolytes, including the employment of additive materials and polymer blends. This research aims to improve the conductivity of a polymer blend with quasi solid state electrolyte. Poly-methyl methacrylate (PMMA) and poly-vinylidene fluoride (PVdF) possed great electrochemical stability and thermal stability. Hence, these materials were chosen as the target polymer for the synthesis of the polymer blend. The electrical impedance spectroscopy (EIS) analysis showed an optimum conductivity value of 3.44 106 Scm1 with the ratio of PMMA: PVdF (70:30) at ambient temperature. The dependent temperature of PBE was also analyzed to prove that the conductivity increases with the increment of temperature and low activation energy (Ea). The thermogravimetric analysis (TGA) shows the stability of PBE up to 651 ◦C. Through this research, there are several different concentrations of PBE to investigate the stability of PBE with great value in the conductivity performance

    Role of organic soil amendment of paramagnetic humus and compost for rehabilitation of post tin-mined tropical land

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    Open tin mining on tropical Bangka Island, Indonesia exposed heavy metals that had become a major cause of land degradation and severe local_global environmental damage. The goal of this study is to accelerate the remediation of degraded ecosystems in tin mined land, and thereby promote sustainable land use and environmental productivity. To the tailings of a former tin mined on Bangka Island, we applied an organic amendment comprising compost and paramagnetic humus at dosages of 0%, 5%, and 10%, and analyzed the results using a factorial completely randomized design (FCRD). We found the soil from the former tin mining site to be acidic (pH 5.34) and dominated by sand particles (88%) with a very low cation exchange capacity. The soils also had a very low nutrient content (available and total-N, P, K, Ca, Mg), high toxicity levels of Zn, Cu, B, Cd and Ti, as well low toxicity levels of B, Zn, Cu, Ti, Cd. Organic soil amendments of organic paramagnetic materials and compost can improve soil quality by increasing the pH, the high availability of P and K and the cation exchange capacity, as well as maintain low toxicity. The growth (high, diameter, biomass, top-root ratio) of the exotic pioneer plant Reutealis trisperma increases the quality of soils to which proper soil amendments have been applied. The overall concept and appropriate technology for rehabilitating the ecosystem of degraded tin-mined land in tropical regions which serve as the world’s lungs, will strongly contribute to the development of a healthy and sustainable environment for all life on this plane

    Dominant co-exposed {101}/{111} facet of Er-doped rutile TiO2 film via hydrothermal doping

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    The origin of the improved performance of erbium-doped TiO2 film via the hydrothermal doping process is discussed. Facet engineering of rutile TiO2 on the surface atomic structure is known but the electronic structure has been rarely studied to date. Particularly, the dominant facet of rutile TiO2 has changed upon doping resulting with co-exposed {101}/{111} facet as shown in TEM results. The surface energy levels of the conduction band (CB) and valence band (VB) on different crystal surfaces change, and these variations in energy levels will cause the electrons and holes to gravitate toward different crystal faces and inhibit the electron-hole recombination

    Investigating the interactions between travellers' familiar areas and their multi-day activity locations

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    A mental map is considered a representation of an individual's spatial cognition. It defines an individual's choice set of plausible activity locations and influences his/her daily activity-travel patterns. Despite its importance, how individuals' activity travel patterns interact with their mental maps on a daily basis is largely unknown, mainly due to data, operation, and measurement issues. The aim of this study is to address this. A total of 57 individuals in Stockholm were asked to record a two-week travel diary and draw their familiar areas in the specified maps. The familiar areas, which in this study are considered as representative of individual mental maps, were manually drawn and transferred from graph to ASCII code in ArcGIS for modelling purposes. The recently visited activity locations were used to construct the individuals' activity spaces. The crucial determinants that related to these activity spaces and familiar areas were investigated. The marginal effect of each key variable was calculated in order to understand the magnitude of influence of each variable to the individuals' activity spaces and familiar areas. The results show that an individual's activity space is partially or completely located within the individual's familiar areas and they are strongly correlated to each other. Large activity centres, such as Stockholm's central areas and areas of Huvudsta have higher probabilities to be included in both individuals' familiar areas and activ-ity spaces than other areas that are closer to home

    Optimization of polymer blend electrolytes with tuneable conductivity potentials

    No full text
    The potential of electrolytes’ performance in electrochemical devices is among the leading research. There are several ways to improve the conductivity of electrolytes, including the employment of additive materials and polymer blends. This research aims to improve the conductivity of a polymer blend with quasi solid state electrolyte. Poly-methyl methacrylate (PMMA) and poly-vinylidene fluoride (PVdF) possed great electrochemical stability and thermal stability. Hence, these materials were chosen as the target polymer for the synthesis of the polymer blend. The electrical impedance spectroscopy (EIS) analysis showed an optimum conductivity value of 3.44 × 10− 6 Scm− 1 with the ratio of PMMA: PVdF (70:30) at ambient temperature. The dependent temperature of PBE was also analyzed to prove that the conductivity increases with the increment of temperature and low activation energy (Ea). The thermogravimetric analysis (TGA) shows the stability of PBE up to 651 ◦C. Through this research, there are several different concentrations of PBE to investigate the stability of PBE with great value in the conductivity performance

    Optimization of polymer blend electrolytes with tuneable conductivity potentials

    No full text
    The potential of electrolytes’ performance in electrochemical devices is among the leading research. There are several ways to improve the conductivity of electrolytes, including the employment of additive materials and polymer blends. This research aims to improve the conductivity of a polymer blend with quasi solid state electrolyte. Poly-methyl methacrylate (PMMA) and poly-vinylidene fluoride (PVdF) possed great electrochemical stability and thermal stability. Hence, these materials were chosen as the target polymer for the synthesis of the polymer blend. The electrical impedance spectroscopy (EIS) analysis showed an optimum conductivity value of 3.44 × 10− 6 Scm− 1 with the ratio of PMMA: PVdF (70:30) at ambient temperature. The dependent temperature of PBE was also analyzed to prove that the conductivity increases with the increment of temperature and low activation energy (Ea). The thermogravimetric analysis (TGA) shows the stability of PBE up to 651 ◦C. Through this research, there are several different concentrations of PBE to investigate the stability of PBE with great value in the conductivity performance
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