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PublicationStructural, optical properties and Raman Spectroscopy of In₂O₃ Doped LiTaO₃ thin films(Universiti Malaysia Perlis (UniMAP), 2022-01)In this experiment, undoped, 2 wt.%, 4 wt.% and 6 wt.% In₂O₃ doped LiTaO₃ thin films were successfully prepared by utilizing a spin coater to carry out chemical solution deposition on the substrate surface (CSD method). The films were grown on the p-type Si (100) substrates with 2 M in 2-methoxyethanol precursor, whose solubility was twisted at 4000 rpm for 30 seconds. Crystalline formation of the films was carried out at annealing temperature 850 oC, held for 15 hours at a temperature rise rate of 1.67 oC/min. In term of XRD analysis, the structural properties of LiTaO₃ thin film undergo increment in crystallite size and lattice parameter values as the concentration of indium doping increase. The optical properties and Raman spectra of the films were then obtained using UV-Vis spectrometer and Raman spectroscopy. From the XRD measurement, the result shows a hexagonal crystal structure with lattice parameters a = 5.032-5.051 Å and c = 13.643-13.676 Å, and from the UV-Vis data, we observed that the films have a 5.034-5.184 Ev energy gap with 1.70364373 – 1.70364377 refractive index. Raman analysis produces peaks of LiTaO₃, A1TO10 (In₂O₃) and A1LO10 (In2O3). Based on the characterization results, it can be concluded that the 6 wt% In₂O₃ doped LiTaO₃ thin films are very promising for application as a light sensor.
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PublicationSynthesis and characterizations of nano magnetic particles (Co-Ni Fe₂O₄) Ferrite by co-precipitation and biomedical application( 2023-01)Characterization of Cox-1Nix Fe₂O₄ nanoparticles (NPs) employing X-ray diffraction and field emission scanning electron microscopy (FESEM) was accomplished simply by chemical coprecipitation, FTIR and finally the Magnetic Resonance Spectrometer (VSM), the singlephase cubic spinel structure in X-ray diffraction. In FESEM, micrographs of Co ferrites nanoparticles that are virtually spherical can be seen with grain sizes of less than 20 nm. Two absorption bands are visible in the FTIR spectrum, with values ranging from 400-600 cm. These beams show that all of the samples have a ferrite spectral composition. Preparation of samples yielded M-H curves because of the tight turn, which means the paper samples are soft magnetic material in the VSM. Antibacterial activity of Cox-1Nix Fe₂O₄ NPs in limiting the development of isolated pathogenic bacteria Staphylococcus aureus and E. coli was studied to compare their effects with the traditional antibiotics used before. Using Cox-1Nix Fe₂O₄ nanoparticles, it has been found that the nanoparticles release ions into the environment, which interacts with the group (-SH) of proteins, resulting in the defection of bacteria's cell membranes and the subsequent cell death.
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PublicationSynthesis of MWCNTs-TiO₂ photocatalytic nanocomposite membrane via In-situ colloidal precipitation method for methyl orange removal(Universiti Malaysia Perlis (UniMAP), 2022-07)This research aims to examine the performance of photocatalytic nanocomposite membrane for methyl orange dye (MO) removal. Multiwalled carbon nanotubes (MWCNTs) and titanium dioxide (TiO₂) are used as nanofillers to produce photocatalytic membranes via insitu colloidal precipitation method. The weight ratio of MWCNT:TiO₂ were manipulated at 10:0, 5:5, and 0:10 with nanomaterials concentration of 0.1 g/L. The membranes were characterized by surface hydrophilicity, porosity and pore size, and surface charge. The membrane performance was assessed using dead-end membrane filtration method to determine water permeability, dye rejection, and fouling propensity. Pure TiO₂ membrane improved water permeability by 22.57% due to increasing hydrophilicity and large porosity. For dye rejection, pristine membrane outperformed the nanocomposite membranes with a rejection of 25.52% due to the small membrane pore size by sieve mechanism. Lastly, all the nanocomposite membranes showed better antifouling properties with higher normalized flux for pure MWCNTs (0.6822), TiO₂ (0.6781), MWCNT/TiO₂ (0.7239) membranes relative to the pristine membrane (0.6039). The pure TiO₂ membrane has the highest improvement in flux recovery (19.87%) due to dye photodegradation under UV light assisted in membrane cleaning and defouling. Overall, this study demonstrates that photocatalytic nanocomposite membrane can be produced via in-situ colloidal precipitation method.
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PublicationSolutions-Processed Cu₂ZnSnS₄ solar cell utilizing Zn powder as local material(Universiti Malaysia Perlis (UniMAP), 2021-10)Indonesia, as any other countries, requires high electrical energy consumption. The primary electrical supply in Indonesia is dominated by the limited and high pollution fossil fuel. Solar energy is needed as alternative renewable energy to overcome the limited fossil fuels. The Cu2ZnSnS4 (CZTS) as an absorber is a good material due to its non-toxic property, environmentally friendly, low cost and elemental abundance. CZTS solar cells have a high theoretical efficiency of up to 30.9%. The abundance of mineral resources in Indonesia (especially 99% Zinc powder) is utilized for the first time to replace the standard material from Zinc Acetate Dihydrate. Cu-poor Zn-rich CZTS/CdS/ITO is made using Zinc local material compared to the Zinc Acetate Dihydrate. The fabrication technique is carried out using a solution-processed method and spin-coating deposition. The Zn to Sn ratio is investigated towards the crystallinity, morphology, optical properties and cell performance. The result shows that Zinc local material in the CZTS absorber increases the percentage of kesterite phase by 0.3 % compared to Zinc acetate (standard material) and increases the crystallite size by 38.26 nm. The best cell has an efficiency of 5.10 ×10-4 % for Z125 sample (Zn/Sn ratio of 1.25) due to better crystallinity, morphology, optical properties.
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PublicationThe thermal, surface chemical, and electrical properties of BiFe1-xZnxO3 (x = 0, 0.06, 0.12) Nanocrystalline through Sol-gel Technique(Universiti Malaysia Perlis (UniMAP), 2021-07)The synthesis of zinc doped bismuth ferrite has been successfully carried out using the sol- gel autocombustion method. The thermal properties through the TGA test showed that the mass began to stabilize in the range of temperature 600 - 750°C as the indication of the formation of single-phase BiFe0.88Zn0.12O3 nanocrystalline. It is obtained from the SEM test that the surface shape of BiFeO3 of zinc doping indicated that it was not homogeneous and there was clotting. Through the EDS test, it is shown the ratio of (% wt) Bi : Fe between calculations and experiments of 1:1 which indicates a stoichiometric reaction. The XPS study found Zn2p element has entered the Fe2p element. The electrical properties through the LCR test showed that the existence of Zn doped BiFeO3 nanocrystalline reduces the dielectric constant value at a frequency of 100 kHz - 1 MHz. The dielectric constant values are stable at high frequency which can potentially be applied to electromagnetic waves.
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PublicationPower Amplifier for 5G Technology( 2023)This book has significant value to all level of students both undergraduates as well as, postgraduate students, researchers, and engineers in the field of radio-frequency integrated circuit (RFIC) design. This book provides comprehensive understanding state-of-the-art for RF design specifically radio frequency (RF) power amplifier design. It covers overview of 5G technology, fundamental of power amplifier, design implementation of 5G power amplifier, schematic design, layout and simulation results with an in-depth illustrative discussions and up-to-date references. It is useful as a reference and essential book for high-frequency circuit designers in both academia and industry.
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PublicationDeveloping a model of entrepreneurial career success in the Malaysia cosmetic industry( 2023)The evidence suggests that entrepreneurship is important for economic development and reducing social problems like unemployment. However, success rates vary among different industries. Few studies have been conducted on the determinants of career success in the cosmetics industry, especially in Malaysia. This study aimed to investigate the impact of behavioural and psychological factors on intrinsic career success among cosmetic entrepreneurs In Malaysia. Data was collected from 301 NPRA-Registered Cosmetic Entrepreneurs using a cross-sectional approach and analyzed using SPSS and Pls-Sem Statistical software. The study found that career commitment and emotional intelligence had a significant positive effect on intrinsic career success, While career aspiration did not. The study provides insights that can support entrepreneurship at the national level in Malaysia and contribute to the development of a model of career success among Malaysian cosmetic entrepreneurs.
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PublicationThermal properties of nanocellulose‐reinforced composites: a review( 2019)Nanocellulose has received increasing attention in science and industry in recent years as a nanoscale material for the reinforcement of polymer matrix composites due to its superior mechanical properties, renewability, and biodegradability. New nanocellulose sources, modifications, and treatments are under development to reduce the high energy required during production and to create a more suitable industrial-scale production process. Thus, this paper reviews plant-based nanocellulose composites and their properties, with a focus on their thermal-related characteristics. The purpose of this review is to establish for readers the impact of the incorporation of nanocellulose on the thermal and dynamic mechanical properties of nanocellulose composites. Understanding of the thermal properties is important for researchers to assess the suitability of the nanocomposites for a variety of applications in response to new and evolving societal requirements.
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PublicationAsas sistem pneumatik dan hidraulik( 2015)Buku ini memberi pendedahan berkenaan pengenalan berkenaan Asas Pneumatik, Sistem Pneumatik, Elektro-Pneumatik, Asas Hidraulik dan Sistem Hidraulik yang dipraktikkan dalam Industri pada masa ini. Buku ini memfokuskan kepada asas pengenalan yang merangkumi teori-teori asas pneumatik, elektro-pneumatik, hidraulik dan pam hidraulik. Buku ini juga mengetengahkan simbol-simbol, komponen-komponen, dan litar-litar yang digunakan di dalam Sistem Pneumatik dan Hidraulik serta aplikasinyanya dalam Industri dan juga komponen-komponen yang diperlukan untuk melengkapkan sesuatu litar pneumatik, elektro-pneumatik dan hidraulik. Buku ini juga turut membincangkan tentang aras dan kedudukan setiap komponen mengikut kumpulan bagi litar pneumatik, elektro-pneumatik dan hidraulik. Di akhir bab buku ini menceritakan tentang teori-teori pam dan pengiraan yang terlibat bagi pam hidraulik.
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PublicationPhotocatalytic degradation of sugarcane vinasse using ZnO photocatalyst: operating parameters, kinetic studies, phytotoxicity assessments, and reusability( 2021)Photocatalytic degradation performance is highly related to optimized operating parameters such as initial concentration, pH value, and catalyst dosage. In this study, the impact of various parameters on the photocatalytic degradation of anaerobi‑ cally digested vinasse (AnVE) has been determined through decolourization and chemical oxygen demand (COD) reduction efciency using zinc oxide (ZnO) photocatalyst. In this context, the application of photocatalytic degradation in treating sugarcane vinasse using ZnO is yet to be explored. The COD reduction efciency and decolourization achieved 83.40% and 99.29%, respectively, under the conditions of 250 mg/L initial COD concentration, pH 10, and 2.0 g/L catalyst dosage. The phytotoxicity assessment was also conducted to determine the toxicity of AnVE before and after treatment using mung bean (Vigna radiata). The reduction of root length and the weight of mung bean indicated that the sugarcane vinasse contains enormous amounts of organic substances that afect the plant's growth. The toxicity reduction in the AnVE solution can be proved by UV–Vis absorption spectra. Furthermore, the catalyst recovery achieved 93% in the reusability test. However, the COD reduction efciency and decolourization were reduced every cycle. It was due to the depletion of the active sites in the catalyst with the adsorption of organic molecules. Thus, it can be concluded that the photocatalytic degradation in the treatment of AnVE was efective in organic degradation, decolorization, toxicity reduction and can be reused after the recovery process.
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Publication"A binding contract between the dominant and the submissive”: linguistic analysis of gender bias in Fifty Shades of Grey (2015)( 2022-12)Language, a significant tool for communication, is implemented to express an interlocutor’s attitude. Their language choice can imply manipulation of power or discrimination between sexes, also known as sexist language. Since dialogues in movies represent real-world communication, this study aims to delve into the sexist language depicted in Fifty Shades of Grey (2015), a romantic drama film. In particular, the genre reflects the apparent discrepancy between male and female counterparts in terms of language and gender bias. The movie was then selected as the main text for the linguistic investigation of sexist language in this descriptive qualitative research. The essential framework in this research is centered extensively on Sara Mills’ theory regarding language and feminism encompassing overt sexism and indirect sexism. Overt sexism is categorized into six types including generic pronouns, generic nouns, non-parallel terms, sexism in proverbs, sexism in swear word, and derivation. On the other hand, indirect sexism is categorized into six subtypes, namely humor, presupposition, conflicting message, scripts and metaphors, collocation, and androcentric perspective. The researchers observe that characters and their attitudes render sexist ideology while their utterances convey gender-related discrimination.
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Publication"look & blink" two step verification security log in system( 2021-03-01)A new artificial intelligence security design which is face recognition with eye blinking login system is proposed. It aims to strengthen the security account for each user using artificial intelligence technology and increase speed and user convenience for security during login. The face of a person cannot be copied and it can replace the username of the user, while eye blinking detection is another step for double verification replacing the password of a user. It is a two-step verification process that can be applied to all sorts of account login field so that this technology can replace the old school username with a password security system. The recognition system used a real-time where it is reducing the number of hackers in the field as it is impossible to hack a person's real-time face. The proposed system has been tested and analyzed the functionality by accessing the personal account in the university's portal.
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Publication"talking Phonics for Autism": Developing a multi-purpose touch screen technology software application which utilizes sound articulation point to teach autistic children( 2018-02-26)This paper aims to examine the potentials of the multi-purpose touch screen technology application which utilizes a sound articulation point software called "TALKING PHONICS FOR AUTISM"as an alternative method of teaching phonics to autistic children. "TALKING PHONICS FOR AUTISM"is developed via a collaborative effort between the Centre of International Languages (CIL) and the School of Human Development and techno Communication (iKOM), University Malaysia Perlis (UniMAP). The reading skills of autism children are developed intofive (5) levels ofMalay reading comprehension skills. The first level consists of open syllables - vowels and consonants. The following consecutivethree levels comprised of closed syllables. The fourth level introduces vocal sequence while the fifth level constitutes of Malay language loans. The Malay-language dialect phonological theory by Tajul Aripin Kassin (2000) which is based on Clements & Keysher's (1980) Generative Booking Generic Fonology Model (CV) forms the theorectical framework of this paper.
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Publication"UniMAP 2002-2005: Persepsi dan impak ekonomi Perlis"( 2011-02)Universiti Malaysia Per/is (UniMAP) ditubuhkan pada Julai 2001 dan telah memulakan operasinya secara rasmi selepas perlantikan Brigedier Jen. Dato 'Professor Dr. Kamarudin Russin sebagai Naib Canselor pertama pada 16 Februari 2002. Setelah empat (4) tahun beroperasi (2002 hingga 2005), UniMAP telah memberikan sumbangan yang sangat besar di negeri ini. lmpak utama UniMAP adalah dalam aspek ekonomi. Yang mana selama operasinya di Per/is, UniMAP telah menyumbang jutaan ringgit untuk prasarana dan perbelanjaan mengurus termasuklah emolumen staf dan perbelanjaan pelajar. Kertas kerja ini akan melihat kesan yang dibawa oleh UniMAP selama operasinya di Per/is terutamanya dalam aspek ekonomi termasuk jugalah pandangan penduduk Perlis, staf dan pelajar terhadap UniMAP dan kesan kampus teragih serta kesan pemusatan UniMAP terhadap ekonomi Per/is. 565 responden yang terdiri daripada masyarakat luar, sta.f dan pelajar UniMAP terlibat dalam penyelidikan ini. Semua maklumat ini dihurai secara diskriptif dan diikuti dengan ana/isis statistik yang mudah untuk menjelaskannya disamping data-data sekunder daripada pelbagai agensi samaada agensi kerajaan negeri, persekutuan, swasta mahupun UniMAP sendiri.
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Publication1-point fractional adams method for solving single order differential equations with fractional delay( 2023-11-17)This paper deals with fractional delay differential equations (FDDE) of single order with fractional Caputo derivatives using the 1-point fractional Adams method. The proposed method is a predictor-corrector approach that can be constructed from the Adams-Bashforth method and Adams-Moulton method to achieve both simplicity and accuracy. The implementation of the fractional Caputo derivatives using the Euler-Gamma function and the approximation of delay term using the Newton divided difference interpolation are discussed. Some of the numerical examples are presented to show the proposed method is reliable and efficient
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PublicationPantun Pak Nazel : lisan diperi setulus nubari( 2020)Pantun Melayu warisan silam masih signifikan berfungsi dalam kehidupan kontemporari buat berhibur dan pengenalan jati diri masyarakat pemiliknya serta sebagai teknik pengajaran dalam pendidikan. Buku Pantun Pak Nazel: Lisan Diperi Setulus Nubari adalah karya genre pantun ciptaan peribadi yang ke-13 oleh pengarang. Yang istimewanya ialah pantun-pantun yang dipersembahkan, sebahagiannya amat berbeza daripada yang termuat di dalam buku-buku pantun beliau yang terdahulu. Paling ketara ialah kehadiran pantun-pantun yang tidak lazim dikarang oleh penulis-penulis pantun yang lain: misalnya seperti pantun 24 kerat, 20 kerat, 16 kerat, 12 kerat, 10 kerat, lapan kerat dan enam kerat. Namun, Pak Nazel tidak melupakan pantun jenis lazim seperti, pantun empat kerat, juga pantun empat kerat tiga kata sebaris yang mengutarakan pelbagai perkara seperti mengenai harta, hina, ikhlas, jiran, kawan, rindu dan sombong. Penguasaan berbahasa Nazel Hashim Mohamad amat tinggi dan tidak ketandusan kata-kata mahupun ilham. Malah, begitu kreatif dalam menyirat hanya kata-kata akar dengan mengelak penggunaan imbuhan dalam bentuk pantun lazim popular, pantun empat kerat. Pemilihan katanya tepat, sesuai dan padan dengan mesej yang cuba diungkapkan serta menyerlah keindahan melodi dan makna bagi setiap binaan rangkap pantun ciptaan itu. Hasilnya, terjelma suatu koleksi pantun yang kelihatan mudah binaan kata-katanya tetapi segar dalam cakupan mesej yang ingin disampaikan khususnya dalam memperkatakan hal-hal yang kompleks dan abstrak serta kontemporari sifatnya selari dengan alaf milenium yang dilangkauinya.
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PublicationAsas rancangan perniagaan kejuruteraan( 2011)Buku Asas Rancangan Perniagaan Kejuruteraan ialah sebuah buku yang membicarakan mengenai beberapa komponen yang seharusnya wujud di dalam rancangan perniagaan. Apa yang ditekankan ialah pengetahuan asas untuk menghasilkan rancangan perniagaan yang mudah difahami, lengkap dan mempunyai penerangan yang jelas. Buku ini mengandungi 10 bab utama yang telah diperhalusi mengikut sub-sub topik tertentu seperti memahami rancangan perniagaan, pelan rancangan dalam menentukan organisasi, kewangan, pengeluaran dan rancangan pemasaran.
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PublicationKeusahawanan Islam di Malaysia : perkembangan dan cabaran( 2020)Penulisan keusahawanan Islam akan membawa pembaca untuk memahami isu-isu semasa yang sering dibincangkan dalam keusahawanan. Ini kerana, persoalan kemanusiaan sentiasa bersifat kompleks dan dinamis bersesuaian dengan realiti dan kondisi sesuatu masyarakat. Pelbagai cabaran dan rintangan perlu dihadapi oleh manusia demi meneruskan kelangsungan kehidupan di muka bumi dengan sejahtera khususnya dalam konteks keusahawanan. Topik perbincangan ini dimulakan dengan konsep keusahawanan kemudian diikuti dengan konsep keusahawanan Islam. Selanjutnya, perbincangan difokuskan kepada kedudukan ilmu keusahawanan dari sudut muamalah Islam. Bagi memberi gambaran yang jelas, konsep usahawan berjaya dikupas dengan mengambil kira pandangan al-Quran dan hadis supaya para pembaca mendapat gambaran yang jelas mengenai konsep pandang semesta Islam berkaitan keusahawanan. Penulisan ini juga turut membincangkan cabaran yang dihadapi dan peranan kerajaan serta kepentingan pembudayaan keusahawanan Islam pada masa kini. Semua perbincangan ini disertai dengan contoh-contoh semasa yang relevan dengan negara Malaysia pada hari ini. Adalah diharapkan pembaca dapat mengambil faedah daripada isu-isu yang dihidangkan oleh para penulis.
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PublicationPengenalan kepada ujian bahan tanpa musnah( 2013)Pengenalan Kepada Ujian Bahan Tanpa Musnah merupakan sebuah buku yang membincangkan beberapa perkara asas yang penting dalam ujian tanpa musnah. Ia meliputi kebanyakan kaedah ujian tanpa musnah yang sering digunakan di industri. Buku ini memberi penerangan dalam ujian bahan tanpa musnah yang sering digunakan dalam industri bagi memeriksa kecacatan atau ketidaksempurnaan sesuatu bahan tanpa merosakkan atau memusnahkan bahan yang diperiksa. Keseluruhan kandungan buku ini merangkumi perbincangan dari aspek teori serta konsep pengujian, kaedah pengujian, dan aplikasi ujian dalam industri.
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PublicationPerkahwinan tanpa kebenaran : wacana dari sudut hukum dan perundangan Islam( 2015)Penulisan buku ini dimulakan dengan falsafah perkahwinan menurut syariat. Kupasan panjang lebar juga difokuskan kepada bab perwalian yang menjadi asas kepada perbahasan dan perbincangan terhadap isu perkahwinan tanpa kebenaran dari sudut pandang hukum dan perundangan yang sedia ada. Perbincangan perkahwinan tanpa kebenaran ataupun dikenali dengan istilah populisnya ‘kahwin lari’ lebih menarik lagi disebabkan perbahasan berkaitan dengannya berasaskan kepada kes-kes yang berlaku di Mahkamah Syariah. Beberapa cadangan penambahbaikan telah diberikan sebagai input tambahan kepada pihak berwajib dalam menangani permasalahan perkahwinan tanpa kebenaran. Secara keseluruhannya, buku ini dapat memberi gambaran umum berkaitan perkahwinan tanpa kebenaran yang berlaku di negeri Perlis.
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