8,540 research outputs found

    Dynamic Analysis of UAV’s Motor Support Bar Length Control System

    Get PDF
    UAV (Unmanned Aerial Vehicle) can be described as aircraft that do not need any presence of pilots inside it. Basically, UAV is come out in a small aircraft sothat the aircraft can be easily controlled by the people from afar[1]. The UAV’s motor support bar length control systems are the UAV’s control systems that move according to the variable arm length movement and also a constant revolution of the propeller speeds. The purpose of the study is to run the dynamic analysis at the UAV’s motor support bar length control systems and also to enhance the UAV’s mathematical modellingby using the SOLIDWORKS¼software which involved in using both CAD and CAE systems[2]. The detaileddesign is used SOLIDWORKS¼software to conduct the static and dynamic analysis of UAV’s motor support bar length control systems. The design is restricted to the arm due to the critical part that has the highest vibration at the UAV’s motor support bar length control systems. The results that obtain from the study from the static and dynamic analysis are the displacement of the motor, Von Misses stress of the arm, and also the resonance frequency that will give the modes shape to the systems

    The Predictors of Habitual Behavior in Using Mobile Phone among University Students

    Full text link
    The use of technology in academic activities, particularly in higher education institutions is one thing in common and undeniable. Entering the era of information technology without borders, the use of technology such as computers, laptops, tablets, mobile phones and so on are seen as essential roles to assist educational activities. Therefore, the utilization has become the norm among instructors and students in higher education institutions. Through previous studies, the terms of norms often referred to habitual behavior or automatically behavior. This study focused on three of independent variables from UTAUTrsquos model (performance expectancy, effort expectancy and social influences) to predict studentsrsquo habitual behavior in higher education in the use of mobile phone. This study involved 393 of undergraduatesrsquo student and was conducted entirely in Universiti Putra Malaysia (UPM), Serdang.nbsp The results of data analysis revealed all the independent variables have significant effect on habitual behavior.nbs

    Pseudobinary Fe4Ti3S8 compound with a NiAs-type structure: Effect of Ti for Fe substitution

    Full text link
    The transition metal sulfide Fe4Ti3S8 with 7:8 composition has been synthesized and studied by using X-ray diffraction, magnetization and electrical resistivity measurements. This compound exhibits a monoclinic crystal lattice (space group I12/m1). The substitution of Ti for Fe in Fe7S8 is found to result in a lowering of the Curie temperature (TC ≈ 205 K), in a larger value of the coercive field (Hc ∌ 9 kOe at low temperatures) and in a substantial growth of the resultant magnetic moment per formula unit (ÎŒFU) in comparison with Fe7S8. An enhanced value of ÎŒFU is attributed to the preferential substitution of Ti in alternating cation layers. From the paramagnetic susceptibility measured within temperature interval (250-350) K, a reduced value of the effective moment per iron (ÎŒFe ∌ 2.4ÎŒB) was determined. The electrical resistivity of Fe4Ti3S8 shows a non-metallic behavior and is affected by magnetic ordering. © 2013 Elsevier Masson SAS. All rights reserved

    Kesan penggunaan koswer multimedia animasi visual terhadap pencapaian pelajar dalam mata pelajaran matematik

    Get PDF
    Ramai pelajar yang bermasalah dalam topik Pelan dan Dongakan. Ini kerana pelajar sukar untuk membayangkan objek yang tersembunyi melalui proses pengajaran dan pembelajaran (P&P) secara konvensional. Penyelidik telah membangunkan satu koswer multimedia animasi visual dalam topik Pelan dan Dongakan dengan menerapkan kesemua elemen-elemen yang dapat membantu meningkatkan kemahiran visual iaitu elemen animasi, video, audio, grafik dan teks. Seterusnya, kajian kuasi eksperimental ini turut dijalankan bertujuan untuk mengetahui kesan penggunaan koswer multimedia animasi visual terhadap pencapaian pelajar bagi mata pelajaran Matematik di sekolah menengah. Ujian Pra dan Ujian Pos digunakan untuk melihat perbezaan pencapaian yang signifikan selepas menggunakan koswer multimedia animasi visual yang menggunakan teori Kognitif Visual Wiley. Responden yang terlibat dalam kajian ini ialah seramai 40 orang pelajar Tingkatan Lima yang dibahagikan kepada dua kumpulan iaitu kumpulan rawatan dan kumpulan kawalan yang dipilih daripada sebuah sekolah di daerah Batu Pahat, Johor. Hasil analisis menunjukkan peningkatan skor min markah bagi pelajar kumpulan rawatan. Hasil analisis ujian-t (paired-sample-t-test) membuktikan bahawa wujudnya perbezaan skor min markah yang signifikan di antara markah ujian pra dan markah ujian pos bagi kumpulan rawatan. Oleh itu, terdapat perbezaan yang signifikan di antara skor min markah ujian pra dan ujian pos bagi pelajar kumpulan rawatan selepas menggunakan koswer multimedia animasi visual. Manakala instrumen soal selidik yang digunakan untuk melihat tahap penerimaan pelajar selepas menggunakan koswer multimedia animasi visual berdasarkan tiga aspek iaitu aspek isi kandungan, aspek interaksi dan aspek persembahan telah memeperolehi skor min yang tinggi bagi ketiga-tiga aspek tersebut. Dapatan kajian ini menggambarkan penggunaan koswer multimedia animasi visual dapat membantu meningkatkan pencapaian Matematik di dalam bilik darjah terutama yang tidak melibatkan pengiraan

    Pengaruh Literasi Keuangan Syariah terhadap Perilaku Keuangan Masyarakat Binaan Pondok Pesantren Daarut Tauhid Kabupaten Bogor

    Get PDF
    The issue of sharia financial literacy is closely related to one's ability to know and understand Islamic financial products and services based on sharia principles. The purpose of sharia financial literacy is expected not only to know and understand sharia financial services institutions and sharia financial products and services but also how to be able to change and improve people's behavior in sharia financial management so as to improve public welfare. This study aims to analyze the level of Shariah financial literacy and the influence of the level of sharia financial literacy on the financial behavior of the people guided by the Daarut Tauhid Islamic Boarding School in Bogor. Data analysis uses descriptive statistical analysis and multiple linear regression analysis. Cumulatively, all sharia financial literacy variables have a positive effect on people's financial behavior. Partially, each variable has a positive effect

    Livestock Production and Economic Implications from Augmenting Degraded Rangeland with \u3ci\u3eAtriplex halimus\u3c/i\u3e and \u3ci\u3eSalsola vermiculata\u3c/i\u3e in Northwest Syria

    Get PDF
    Three stocking rates (low: one sheep 2.25 ha-1, medium: one sheep 1.5 ha-1 year-1 and high: one sheep 0.75 ha-1 year-1) were studied for 7 seasons (1990/91-1996/97) on native range and on pasture over sown with fodder shrubs at Maragha, northwest Syria. There were 8 Awassi sheep in each stocking rate treatment, and the treatments were replicated 3 times in fenced paddocks. Milk yield, lamb production, live weight and supplementary feeding of the sheep were monitored. The results showed significantly higher forage availability on the range over-sown with fodder shrubs by 82% and 41% in the medium and high rainfall seasons, respectively and by 142% and 379% in the average and low rainfall seasons, compared with the native pasture. The total energy used in the supplementary feed was greater under the native pasture than that in the shrub-sown pasture in 5 out of 7 seasons, while crude protein consumption was greater in the native pasture than on the shrub-sown pasture in all 7 seasons. Milk production and lamb body mass were higher on shrub-sown pasture than those in native pasture in 4 and 6 out the 7 seasons, respectively. Benefits obtained from reduced feed costs, extra milk and lamb sales were higher on shrub-sown pasture than those in the native pasture in 5 out of the 7 seasons. Total benefits measured over the entire study period were highest under the high stocking rate, reaching about 77 US $ ha-1. We concluded that shrub plantation in west Asia could safely be utilized at stocking rate of one sheep 0.75 ha-1 year-1 for the benefits of the pasture and users

    Isolation of bioflocculant-producing bacteria from Penaeus vannamei ponds for the production of extracellular polymeric substances

    Get PDF
    Bioflocculants are essential polymers with their flocculating activity depending on the characteristics of the secreted flocculants by bioflocculant-producing bacteria. However, the characteristics of bioflocculant produced by microorganisms were not investigated profoundly. In order to better understand these characteristics, determination of extracellular polymeric substances (EPS) from bioflocculant-producing bacteria were characterized in terms of protein concentrations. A total of 51 bioflocculant-producing bacteria isolates were screened from Pacific whiteleg shrimp, Penaeus vannamei culture ponds in Setiu, Terengganu, Malaysia. Screening of bioflocculant-producing bacteria were conducted through morphological approaches followed by protein extraction using Lowry assay method. The identified bioflocculant-producing bacteria includes Corynebacterium sp., Klebsiella sp., Lactobacillus sp., Staphylococcus sp., Bacillus sp., Streptococcus sp., Vibrio spp., Neisseria sp., Serratia sp. and Yersinia sp., with the highest protein concentration of 829 mg mL-1 were attained by Staphylococcus sp. The various amounts of EPS concentration produced by different species of bacteria were dependent on their specific population growth and growth rate. Therefore, the establishment of bioflocculant-producing bacteria isolated from biofloc which showed high tendency for EPS production were performed successfully

    Analytical Study for the Charge-Transfer Complexes of Risperidone in Pure and Dosage Forms

    Get PDF
    Two simple, accurate and sensitive spectrophotometric methods were carried out to investigate through charge-transfer reactions of risperidone (RIS) as n-electron donor with various Ï€ acceptors: 7, 7, 8, 8-tetracyanoquinodimethane (TCNQ) and p-chloranilic acid (pCA). The absorbance of reaction product was measured at 842 and 520 nm for TCNQ and pCA reagents respectively. Different experimental parameters affecting the reactions were carefully studied. The reaction pathway was postulated. The proposed spectrophotometric method was utilized for the analysis of RIS in pure form as well as in its pharmaceutical preparations. Under the optimum reaction conditions, Beerñ€ℱs law is obeyed over the concentration range of 1-12 ”g mL-1 and 10-180 ”g mL-1 for TCNQ and pCA respectively. The limit of assays detection (LOD) is 0.114 ”g mL-1 and 2.55 ”g mL-1 for TCNQ and pCA respectively. The mean recovery percentage was 99.72 ± 1.06 and 100.50 ± 1.07 for TCNQ and pCA respectively. The results were compared favorably with those obtained by comparison method. The proposed method was validated statistically according to ICH guidelines

    Manajemen Pendapatan Dan Pengecualian Pajak Pendapatan Di Malaysia

    Full text link
    This study examines whether earnings management action was done in Malaysia for period of 1999. The study was based on abnormal accrual, continued by is spliting off to discretionary accrual and non-discretionary accrual by Jones\u27 model (1991). There were 295 companies registered in Kuala Lumpur Stock Exchange which had completed financial statement for the year of 1999-2000. Statistical analysis in this study shows that there is no strove evidence that the earnive management by income maximization that was motivated by the release of income tax exemption was applied in 1999 by income amximization that was motivated motivated by the release of tax income exemption was applied in 1999. The analysis is also done for the year of 2000, as the action of earning management in 1999 will have impact for the financial reporting in the following year. Thus, in can be identified that the finding in the year of 2000 will support the finding of the previous year
    • 

    corecore