Kualiti pengalaman pembelajaran pelajar-pelajar sarjana muda kejuruteraan elektrik di Kolej Universiti Teknologi Tun Hussein Onn (KUiTTHO) dari aspek pembelajaran kognitif, psikomotor dan afektif

Pembelajaran kognitif, psikomotor dan afektif merupakan pembelajaran yang perlu ditekankan dalam konteks pengajaran dan pembelajaran di institusiinstitusi pengajian tinggi. Ketiga-tiga aspek pembelajaran tersebut amat penting bagi melahirkan graduan yang mempunyai ketrampilan yang tinggi dari segi kreativiti, berinovatif, berkaliber, berkompetensi serta mempunyai motivasi kendiri yang tinggi. Kajian ini adalah satu kajian untuk menilai kualiti pengalaman pembelajaran pelajar-pelajar Saijana Muda Kejuruteraan Elektrik di KUiTTHO. Kajian ini meninjau pengalaman pembelajaran di dalam kelas dan di makmal/bengkel dari aspek pembelajaran kognitif, psikomotor dan afektif. Responden terdiri daripada empat puluh orang pelajar Saijana Muda Kejuruteraan Elektrik semester akhir yang dipilih secara rawak. Instrumen yang digunakan dalam kajian ini ialah jenis soal selidik di mana penilaian dilakukan berdasarkan persepsi responden terhadap pengalaman pembelajaran yang ditempuhi sepanjang pengajiannya serta menjalankan sesi temubual dengan beberapa orang responden. Data-data yang dikumpulkan, dianalisis menggunakan SPSS version 11.0 yang melibatkan skor min dan sisihan piawai. Dapatan kajian menunjukkan kualiti keseluruhan pengalaman pembelajaran pelajar adalah di tahap sederhana (skor min = 3.49). Bagi pengalaman pembelajaran di dalam kelas dan makmal, kualitinya adalah di tahap sederhana (skor min = 3.31 dan 3.67 masing-masing). Sementara kualiti keseluruhan pengalaman pembelajaran dari aspek kognitif, psikomotor dan afektif juga berada di tahap sederhana (skor min = 3.50, 3.39 dan 3.57 masing-masing). Oleh itu, berdasarkan kualiti pengalaman pembelajaran pelajar yang sederhana ini, pengkaji telah membina satu produk cadangan iaitu Sistem Senarai Semak Kualiti Pengajaran dan Pembelajaran bagi membantu pihak pengurusan akademik KUiTTHO meningkatkan kualiti pengajaran dan pembelajaran dari ketiga-tiga aspek kognitif, psikomotor dan afektif

An Electronically Reconfigurable Patch Antenna Design for Polarization Diversity with Fixed Resonant Frequency

In this paper, an electronically polarization reconfigurable circular patch antenna with fixed resonant frequency operating at Wireless Local Area Network (WLAN) frequency band (2.4-2.48 GHz) is presented. The structure of the proposed design consists of a circular patch as a radiating element fed by coaxial probe, cooperated with four equal-length slits etched on the edge along x-axis and y-axis. A total of four switches was used and embedded across the slits at specific locations, thus controlled the length of the slits. By activating and deactivating the switches (ON and OFF) across the slits, the current on the patch is changed, thus modifying the electric field and polarization of the antenna. Consequently, the polarization excited by the proposed antenna can be switched into three types, either linear polarization, left-hand circular polarization or right-hand circular polarization. This paper proposes a simple approach that able to switch the polarizations and excited at the same operating frequency. Simulated and measured results of ideal case (using copper strip switches) and real case (using PIN diode switches) are compared and presented to demonstrate the performance of the antenna

Bandwidth enhancement of rectangular dielectric resonator antenna using circular slot coupled technique

This article presents a technique to enhance the bandwidth of a rectangular dielectric resonator antenna using a circular slot. The structures are designed and simulated using CST Microwave Studio software, and it is found that the circular slot exhibits a bandwidth of 36.44% (0.92-1.33 GHz). The circular slot is compared with the rectangular slot. It is shown that the rectangular slot produces a bandwidth of 6.39% (1.06-1.13 GHz). Both structures exhibit similar radiation patterns with slightly different gains at 3.10 and 3.25 dBi. The bandwidth is enhanced more than five times using the circular slot, compared to the rectangular slot

Textile Diamond Dipole and Artificial Magnetic Conductor Performance under Bending, Wetness and Specific Absorption Rate Measurements

Textile diamond dipole and Artificial Magnetic Conductor (AMC) have been proposed and tested under wearable and body centric measurements. The proposed antenna and AMC sheet are entirely made of textiles for both the substrate and conducting parts, thus making it suitable for wearable communications. Directive radiation patterns with high gain are obtained with the proposed AMC sheet, hence minimizing the radiation towards the human body. In this study, wearable and body centric measurements are investigated which include bending, wetness and Specific Absorption Rate (SAR). Bending is found not to give significant effect to the antenna and AMC performance, as opposed to wetness that yields severe performance distortion. However, the original performance is retrieved once the antenna and AMC dried. Moreover, notable SAR reduction is achieved with the introduction of the AMC sheet, which is appropriate to reduce the radiation that penetrates into human flesh

GENETSKA VARIJABILNOST, ZNAČAJKE I GENETSKA RAZLIČITOST AZIJSKOG GRAHA (VIGNA RADIATE L. WILCZEK)

Genetic variability, correlation coefficient, path coefficient and genetic diversity were determined among fifty mungbean genotypes. There was a great deal of significant variation for all the characters among the genotypes. Considering genetic parameters high genotypic co-efficient of variation (GCV) was observed for no. of primary branches, seed yield per plant but no. of seed per pod and days to 80% maturity showed low GCV. In all the cases, phenotypic variances were higher than the genotypic variance. High heritability with low genetic advance in percent of mean was observed for days to 50% flowering suggesting non-additive gene effects for the expression of the character and selection for such trait might not be rewarding. High heritability with high genetic advance in percent of mean was observed for no. of primary branches per plant and a thousand seed weight indicating that this trait was under additive gene control and selection for genetic improvement for this trait would be effective. Seed yield per plant showed highest significant positive correlation with a thousand seed weight. It also has a significant positive correlation with seed per pod at genotypic level and a non-significant positive correlation with seed per pod at phenotypic level. Therefore, these traits could be important for the direct selection to improve yield. Total six clusters were formed for fifty genotypes. Considering group distance, cluster mean values, and other agronomic performances, inter genotypic crosses between G16 and G47; G16 and G13; G47 and G13: G21 and G19: G8 and G21, G21 and G35, G3 and G8, G3 and G35, G3 and G19, G8 and G19 might be suggested for future hybridization program.Među pedeset genotipova azijskog graha određeni su genetska varijabilnost, koeficijent korelacije, koeficijent putanje i genetska različitost. Među genotipovima bilo je mnogo značajnog variranja u svim značajkama. U genetskim parametrima primijećen je značajno visoki koeficijent raznolikosti (GLV) u broju primarnih grančica i prinosu sjemena po biljci, ali je broj sjemenki po mahuni dana do 80% zrelosti pokazao niski GLV. U svim slučajevima fenotipska variranja bila su viša nego genotipska variranja. Visoka nasljednost s niskim genetskim napretkom u postotku prosjeka primijećeni su za dane do 50% do cvatnje, što pretpostavlja djelovanje neaditivnog gena za izražavanje značajki pa selekcija za takve osebine možda nije korisna. Visoka nasljednost s visokim genetskim napretkom u postotku prosjeka primijećena je za broj primarnih grančica po biljci i težinu 1000 sjemenki, što upućuje da je ova osobina pod kontrolom aditivnog gena, te da bi selekcija za genetsko poboljšanje ove osobine bila djelotvorna. Prinos sjemena po biljci pokazao je najvišu značajnu pozitivnu korelaciju s težinom 1000 sjemenki. Isto tako ima pozitivnu korelaciju sa sjemenom po mahuni na razini fenotipa. Stoga bi ove značajke mogle biti važne za izravnu selekciju radi poboljšanja prinosa. Formirano je ukupno šest klastera za pedeset genotipova. S obzirom na grupnu udaljenost, srednju vrijednost klastera i druge agronomske rezultate/performanse može se preporučiti međugenetsko križanje za buduće programe hibridizacije između G16 i G47; G16 i G13; G47 i G13; G21 i G19, G8 i G21, G21 i G35, G3 i G8, G3 i G35, G3 i G19, G8 i G19

EEG pattern of human calmness during listening to Al-Quran recitation and soft instrumental music

Emotions is a really importance and powerful in human life this is because it can affect the brain which is the most importance organ in human organic system. Good emotion will gives a good effect towards the brain and human while the bad emotion will be vice versa from the good emotion. This is the reasons why emotion needs to manage wisely. Calmness is the one thing that people always seek off after having a hard time or stress. Music has a great effect towards human mind and body. It has proven that listening to music increase the alpha wave level associated to the increase of relaxation. Music is one of therapy that beneficial the people who experiencing depression, stress or anxiety. This research used al�Quran recitation of Surah al-Shua’ara and soft instrumental music as the material to simulate the brain to generate the calmness. There are 10 subject were recorded the EEG signal during listening to al-Quran recitation and soft instrumental music by using Emotiv Insight equipment. The raw data of EEG will undergo analysing process by using SPSS software to test the accurately of the data. The objective of this research is to compare the calmness between the Al-Quran recitation and soft instrumental music. As the result, it is found that most of the subjects were calm during listening to al-Quran recitation compared to the soft instrumental music, but still the soft instrumental music gives calmness towards the listener this is because alpha wave level is low during listening to them compared to beta wave level. In conclusion, al-Quran recitation gives calmness towards the listener compared to the soft instrumental music

Analysis of genetic diversity in mango (Mangifera indica L.) using isozymetic polymorphism

The isozymetic study was designed for assessing the genetic diversity among the selected mango cultivars/genotype available in Bangladesh. All the isozymes, used in the present study showed polymorphism for mango. A total of 25 different electrophoretic zymotypes were observed for three isozymes studied. Glutamate oxaloacetate transaminase, malate dehydrogenase and peroxidase analysis possessed 8, 10 and 7 zymotypes, respectively, and genotypes were grouped into different electrophoretic zymotypes which indicated higher level of genetic diversity of mango. For glutamate oxaloacetate transminase, G6 was the most common zymotypes whereas G3, G5, and G8 were found in few cases. Similarly, M8 and M6 in malate dehydrogenase as well as P6 and P5 in peroxidase were found more frequent while other zymotypes in both isozymes were less frequent. Frequency was very few for one zymotype in all cases of three isozymes such as, G8, M10 and P7. Cluster analysis through UPGMA dendogram using isozymes electrophoretic pattern provided strong information about existence of variability among the genotypes of mango. Based on Euclidean distance, a dendogram was constructed using banding pattern of 60 mango genotypes developed through three isozymes activities. The dendogram showed eight major clusters designated as I, II, III, IV, V, VI, VII and VIII. The results generated with isoenzyme will be helpful in improvement as well as may guide us in designing strategies that maximize the utility of genetic resources.Key words: Polymorphism, isozyme, mango, genetic diversity, variety

Embroidery Leaf Shape Dipole Antenna Performances and Characterisation

In this paper, leaf shape textile antenna in ISM band has been chosen to study. The operating frequency of the dipole antenna is 2.45GHz. The effect of conductive threads with three different types of sewing has been analysed. The first type of sewing leaf shape dipole antenna is to stitch around itself and embroidered into a fleece fabric with circular follow by vertical and horizontal stitch respectively. From measured return loss, the antenna with circular stitch shows better performances with optimum resonances compared with the two types of stitching. The measured results confirm that the circular stitch is more suitable for leaf shape dipole antenna design. Thus it can be concluded that different stitch gives different results for leaf shape dipole antenna