657 research outputs found
Moisture absorption and diffusivity of epoxy filled layered-structure nanocomposite
No full textThis paper studies moisture absorption and diffusivity of epoxy reinforced layered structure nanocomposites and its effect on fracture toughness. Two different types of layered fillers employed in the study were clay and graphene platelets, in which both surface layers were unmodified and modified by characterized by swelling analysis and fracture toughness measurement. The outcomes surfactant. The nanocomposites were showed that the moisture absorption and diffusivity decreased with the addition of layered fillers. It was found that the modified graphene platelets and clay outperformed the unmodified layers and neat epoxy in terms of reduction of moisture absorption and diffusivity. The modified graphene platelets reduced the moisture uptake and diffusivity about 30% and 33%, respectively compare to neat epoxy, thus indicates its outstanding performance in barrier applications. However, once the nanocomposites were swelling in the water for 5 days, it is noticed that the fracture toughness of nanocomposites were reduced significantly about 35% in average. Nevertheless, the modified graphene platelets still display the better performance compare to the other samples although there was reduction of fracture toughness
An analysis of stylistic approaches haydn’s quartet opus 64 no. 5 in D major (hoboken iii: 63) / Mohammad Fitry Ismail
No full textThe purpose of study is to gain knowledge mm the one of the type of chamber music as known as string quartet. String quartet is groups take in {our people; frequently it has two violins, one viola and one violoncello. The development of the string quartet was started in 18‘" century by the time in the classical era (175071820). In order to, this scope of study not focused on the performance method but the author more concerned on the composition analysis including form, melody and harmony as well. Hence, the author prefers string quartet op. 64 no 5 in D Major, composed by Joseph Haydn as a medium to do style analysis on that string quarte
Recovery of Precious Metal Elements in Aqua Regia Using Cellulose-Based Adsorbents
No full text金沢大学博士(学術)博士論文 要旨Abstract/本文Full 以下に掲載：(1) Chemical Engineering Journal 495. 2024. Elsevier. 共著者：M. Mehedi Hasan Rocky, Ismail M.M. Rahman, Masaru Endo, Hiroshi Hasegawa;博士論文 要旨Abstract/本文Full 以下に掲載：(2) Journal of Material Cycles and Waste Management 26 pp.816-829 2023. Springer Nature. 共著者：M. Mehedi Hasan Rocky, Ismail M. M. Rahman, Yuto Sakai, Foni B. Biswas, Shafiqur Rahman, Masaru Endo, Kuo H. Wong, Asami S. Mashio & Hiroshi Hasegawa;(3)Chemical Engineering Journal 472. 2023. Elsevier . 共著者：M. Mehedi Hasan Rocky, Ismail M.M. Rahman , Foni B. Biswas, Shafiqur Rahman, Masaru Endo, Kuo H. Wong, Asami S. Mashio , Hiroshi Hasegawadoctoral thesi
The environmental graphics identification in Malaysia's autism school design / Mohammad Shahidan Rosli, Nor Hazirah Hasri and Sarah Rahman
No full textAutism is a developmental disorder that has a substantial impact on a person's verbal and verbal communication skills, as well as social interaction
Strain Sensor Based on Embedded Fiber Bragg Grating in Thermoplastic Polyurethane Using the 3D Printing Technology for Improved Sensitivity
No full textA new and easy-to-fabricate strain sensor has been developed, based on fiber Bragg grating (FBG) technology embedded into a thermoplastic polyurethane filament using a 3-dimensional (3D) printer. Taking advantage of the flexibility and elastic properties of the thermoplastic polyurethane material, the embedding of the FBG provides durable protection with enhanced flexibility and sensitivity, as compared to the use of a bare FBG. Results of an evaluation of its performance have shown that the FBG sensors embedded in this way can be applied effectively in the measurement of strain, with an average wavelength responsivity of 0.013 5 nm/cm of displacement for tensile strain and −0.014 2 nm/cm for compressive strain, both showing a linearity value of up to 99%. Furthermore, such an embedded FBG-based strain sensor has a sensitivity of ∼1.74 times greater than that of a bare FBG used for strain measurement and is well protected and suitable for in-the-field use. It is also observed that the thermoplastic polyurethane based (TPU-based) FBG strain sensor carries a sensitivity value of ∼2.05 times higher than that of the polylactic acid based (PLA-based) FBG strain sensor proving that TPU material can be made as the material of choice as a “sensing” pad for the FBG
Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach
No full textAn innovative vibration sensor based on a Fabry–Perot interferometer (FPI) using fiber Bragg grating (FBG) reflectors was demonstrated in this work. The sensor was designed to be compact and easy to fabricate, independent of temperature, to overcome limitations seen in previous designs, providing an effective correction for temperature effects in FBG-based FPI (FBG-FPI) sensors. A laser source with a peak wavelength of 1547.42 nm obtained from the FBG reflective peak was used to illuminate the FBG-FPI so that the light source was always within the FBG-FPI optimum wavelength operating range of 1547.15 to 1547.80 nm. The sensor was shown to capture a 3-kHz burst signal from a signal generator in 1-, 2-, and 3-Hz intervals. In addition, the work carried out has revealed that the sensor could be used to capture sinusoidal signals at frequencies up to 9 kHz, creating a performance comparable with many existing conventional piezoelectric sensors. Furthermore, the ability to operate regardless of any ambient temperature changes [from 26.5°C (room temperature) up to 80°C] opens the way to use such a sensor system over a wide range of engineering applications taking advantage of the next generation of FBG-based FPIs
Interaksi Ilmiah: PPSM UiTM Sarawak bersama PeTARY UNIMAS / Sharin Sulaiman
No full textPada 8 Disember 2023 hari Jumaat, seramai 10 orang pensyarah Pusat Pengajian Sains Maklumat, UiTM Cawangan Sarawak Kampus Samarahan yang diketuai oleh Dr Susan Hydra Sikayu selaku Ketua Pusat Pengajian (Perakaunan dan Pengajian Sains Maklumat) telah membuat kunjungan hormat dan sesi perkongsian ilmu bersama barisan pengurusan tertinggi yang diketuai oleh Puan Levas anak Mejus selaku Pengarah Perpustakaan Tun Abdul Rahman Ya’kub (PeTARY), Universiti Malaysia Sarawak. Antara tujuan utama kunjungan hormat ini diadakan adalah untuk untuk membincangkan peluang kolaborasi yang boleh diwujudkan antara Pusat Pengajian Sains Maklumat, UiTM Cawangan Sarawak dengan Perpustakaan Tun Abdul Rahman Ya’kub (PeTARY), Universiti Malaysia Sarawak (UNIMAS) terutama yang melibatkan perkongsian ilmu melalui forum dan konferensi dalam bidang sains maklumat. Program ini bertempat di Bilik Mesyuarat, Perpustakaan Tun Abdul Rahman Ya’kub dan dihadiri seramai 10 orang barisan pensyarah dari Pusat Pengajian Sains Maklumat, UiTM Cawangan Sarawak dan 5 orang pengurusan tertinggi Perpustakaan Tun Abdul Rahman Ya’kub yang terdiri daripada Puan Levas anak Mejus (Pengarah PeTARY), Haji Valentino Bin Abu Bakar (Timbalan Pengarah), Encik Zaiden Bin Sanyut (Ketua Penolong Pengarah), Puan Norazlina Binti Abdul Rahman (Ketua Penolong Pengarah), Encik Abdul Rahman Bin Mohammad Hussain (Pembantu Pustakawan) dan Cik Norlia Binti Ismail (Setiausaha Pejabat)
Islamisation or Malaynisation? : a study on the role of Islamic law in the economic development of Malaysia : 1969-1993
No full textThe thesis examines the role of Islam and Shariah (Islamic law) in the
economic development of Malaysia and it rejects the assumption that Islam and
Shariah inhibit economic development. In contemporary Malaysia, there are two
'policies' adopted by the Government. Firstly, 'Islamisation' which is for the
advancement of Islamic law and institution building. Secondly, 'Malaynisation' which
promotes the socio-economic development of the Malay ethnic group. The study
adopts a holistic approach which covers the political economy of law in Malaysia.
The thesis explores the relationship between the two policies considering in
particular whether they are essentially the same. The study covers the pre-colonial,
colonial and post-colonial periods although the focus is on the post-1969 period which
involved the application of the New Economic Policy (NEP).
The NEP was a pro-Malay Policy to rectif,' the economic imbalance of the
Malays vis-à-vis other communities. Therefore, the focus of this thesis is on the Malay-
Muslim population of Peninsular Malaysia who form the bulk of the Bumiputera
(indigenous people).
Two Bum iputera and Islamic organisations, Bank Islam (BIIMB) and Tabung Haji
(TH) as well as the Bumiputera unit trust scheme, Amanah Saham Nasional (ASN) are
used as the case studies. Their establishment, structure and organisation are examined.
There is a specific focus on the extent to which they are examples of Islamisation or
Malaynisation.
It is clear that in contemporary Malaysia, Islam and Shariah are being used by
the Government to promote economic development. Islamic values have been used to
further Malay economic participation in the commercial sector. As a consequence, the
economic position of many Malay-Muslims has greatly improved. However, the
Government position is questioned by the Islamic opposition who say that the
Islamisation policy in many respects is either contrary to Islam or merely cosmetic, and
want a 'pure' Islamic approach. The thesis therefore involves a critical examination of
the perspectives of both the Government and the Islamic opposition
Effects of climate and corrosion on concrete behaviour
No full text© 2017 Author(s). Corrosion of steel is a damaging agent that reduces the functional and structural responsibilities of reinforced concrete structures. Accordingly, reinforced concrete members in the environments that are prone to concrete carbonation or chloride attack coupled with high temperature and relative humidity suffer from accelerated corrosion of reinforcing material. Also, literature proves that climate influences corrosion of concrete, and suggests investigation of impact of corrosion on concrete based on climate zone. Therefore, this paper presents the effects of climate and corrosion on concrete behavior, using bond strength of concrete as a case study. Concrete specimens were prepared form concrete mix that was infested with 3.5 kgm-3 of sodium chloride to accelerate corrosion. The specimens were cured sodium chloride solution 3.5% by weight of water for 28 days before placing them in the exposure conditions. Pull-out tests were conducted at time intervals for one year to measure the impact of exposure condition and corrosion on bond strength of concrete. The results show reduction of bond strength of concrete by 32%, 28% and 8% after one year of subjection of the specimens to the unsheltered natural climate, sheltered natural climate, and laboratory ambient environment respectively. The findings indicate that the climate influences corrosion, which reduces the interlocking bond between the reinforcing bar and the adjacent concrete
Rural tourism: a case of Cameron Highlands, Pahang. The relationship between service quality & tourist loyalty towards tourist experience as mediator / Alif Azhari Ismail, Norhidayah Mohd Yusoff and Mohammad Izzul Hanis Abdul Rahman
No full textThis paper examined tourists’ evaluation of service quality in rural tourism destination, which is in Cameron Highlands, Pahang, Malaysia. Cameron Highlands is a highland, which is quite popular among tourists that want to see yet another side of Malaysia; a side where they can walk for hours in the cool climate. Because of the perfect climate, it was very suitable for cultivating tea; Cameron Highlands soon grew out to be the biggest tea region of Malaysia and one of the top rural tourism destinations. The domestic tourists’ experience acts as the mediating effect of domestic tourists’ loyalty on this relationship. The data was analysed using multi-regression method. The service quality dimensions delivered have a significant positive influence on tourists’ loyalty. Moreover, previous experience moderates the relationship between service quality and domestic tourists’ loyalty. The findings of this study offer some interesting implications for practitioners and researchers
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