Pelatihan Pemanfaatan Limbah Keyboard Komputer untuk Produk Rumah Tangga

Saat ini, plastik merupakan material utama yang banyak digunakan dalam berbagai jenis produk karena material ini memiliki beberapa keunggulan dibandingkan material lain seperti; kuat, tahan lama, mudah dibentuk, murah, dan keunggulan lainnya. Namun sayangnya, limbah plastik sebagai material non-organik memerlukan waktu yang cukup lama untuk terurai secara alami. Di lingkungan kampus Universitas Trisakti, banyak dijumpai limbah plastik khususnya limbah alat-alat tulis dan alat-alat kantor yang tidak terpakai lagi. Salah satunya adalah keyboard komputer yang menumpuk di gudang karena sudah rusak dan bentuknya sudah ketinggalan jaman. Dalam upaya mengurangi limbah plastik di lingkungan kampus, maka tim PKM (Pengabdian Kepada Masyarakat) Program Studi Desain Produk Fakultas Seni Rupa dan Desain Universitas Trisakti berinisiatif memberikan pelatihan pemanfaatan limbah plastik menjadi produk fungsional bernilai estetik, dengan cara mengolah limbah keyboard komputer tersebut menjadi elemen astetis pada bingkai foto, tempat alat-alat tulis, gantungan kunci, dan jepit rambut. Makalah berupa penelitian kecil ini merupakan luaran hasil pelaksanaan PKM yang telah dilaksanakan kemudian disusun dengan metode penelitian kualitatif dengan pemaparan deskriptif sebagai upaya untuk menghimpun, memilah, menganalisis dan mengevaluasi data dan informasi yang diperoleh. Dari hasil pelaksanaaan PKM dapat diketahui bahwa limbah keyboard komputer ternyata bila diaplikasikan pada produk dengan memperhatikan aspek-aspek desain dapat dimanfaatkan menjadi produk fungsional bernilai jual. Kegiatan yang bersifat praktis dan nyata serta dilakukan secara berkelanjutan melalui program PKM ini diharapkan dapat terus mempererat hubungan antara institusi pendidikan dengan masyarakatnya, sehingga manfaat perguruan tinggi sebagai entitas intelektual akan semakin besar dan penting peranannya salah satunya adalah dalam upaya peningkatan kesejahteraan masyarakat

The Existence Value of Peat Swamp Forest in Peninsular Malaysia

Forests form the dominant natural ecosystem in Malaysia. About 55% of Malaysian land area is forested and endows a rich diversity of flora and fauna. Peat swamp forests constitute a significant component of forest and account for about 75% of the country’s total wetlands. Many peat swamp forests have already been converted to new land uses including palm oil plantations, agriculture and housing. The south-east Pahang peat swamp forest (SEPPSF), located at Pahang state is the largest peat swamp forest cover in Peninsular Malaysia and is believed to be the mainland Asia’s largest and intact peat swamp forest. It harbours unique flora and fauna, provides benefits and services of national interest and supports the livelihood of the aborigines (Orang Asli) communities. Many of the benefits and services from peat swamp forests are unpriced and this can lead to faulty land use decision making. Non market valuation can provide important information on the value of many currently unpriced items and enable decision makers to consider the opportunity costs of proposed land use changes. Total economic value (TEV), which includes use and non-use values, is a complex method to determine the estimated total benefits for a tropical forest. This study reports on a contingent valuation study of existence value (non-use value) of the SEPPSF. The economic value is based on the mean maximum willingness to pay of the households in Kuantan (the capital city of Pahang state) to conserve the forest.SEPPSF, economic value, CVM, Agricultural and Food Policy, Consumer/Household Economics, Environmental Economics and Policy, Farm Management, Land Economics/Use,

Seeded microfiltration of copper with modified activated carbon

In this study the use of seeded microfiltration (MF) with modified powdered carbon focussed on the removal of copper ions from an aqueous solution. The aim of the study was to look into the possibility of utilisation of suitable modified activated carbons combined with membrane filtration (microfiltration) as an alternative technique for the treatment and recovery of copper ions from liquid wastes, to give high removal efficiency with low energy consumption. To enhance the filtration process, the particle size of modified activated carbon used was small because it provides a larger surface area and a shorter diffusional distance for base metals to be adsorbed. Furthermore, in order to minimise the fouling effect, a surface filter (nickel membrane) which had pores, or slots, that passed directly from one side of the filter to the other with no tortuosity was used

Antimicrobial activities of marine fungi from Malaysia

Copyright 2011 Elsevier B.V., All rights reserved.Peer reviewedPublisher PD

Passively mode-locked laser using an entirely centred erbium-doped fiber

This paper describes the setup and experimental results for an entirely centred erbium-doped fiber laser with passively mode-locked output. The gain medium of the ring laser cavity configuration comprises a 3 m length of two-core optical fiber, wherein an undoped outer core region of 9.38 μm diameter surrounds a 4.00 μm diameter central core region doped with erbium ions at 400 ppm concentration. The generated stable soliton mode-locking output has a central wavelength of 1533 nm and pulses that yield an average output power of 0.33 mW with a pulse energy of 31.8 pJ. The pulse duration is 0.7 ps and the measured output repetition rate of 10.37 MHz corresponds to a 96.4 ns pulse spacing in the pulse train

Characterization of a-CNx Thin Films prepared by RF-PECVD Technique for humidity sensor

In this work, amorphous carbon nitride (a-CNx) thin films were deposited by radio frequency (RF) plasma enhanced chemical vapor deposition (RF-PECVD) technique. The RF power and gas mixture of methane (CH4) and nitrogen (N2) flow was kept constant, while the electrode distance was varied from 1 to 6 cm. The effect of electrode distance on the chemical bonding, morphology and humidity sensing responses of the films were investigated. Fourier transform infra-red spectroscopy (FTIR) studies showed a systematic change in the spectra and showed three main peaks namely the G and D-peak, C≡N triple bonds and C-H/O-H groups. Uniform and porous morphology was observed for films deposited at smallest distance followed by non-porous cubicle-like grain as electrode distance increased. Subsequently formation of vertically aligned nanostructures apparent both from its surface and cross section images by increasing of electrode distance to the fullest. The humidity sensing property has been studied by recording their resistance response to relative humidity (RH) at room temperature. It was found that the resistance value decreases from 15.4 to 3.6 kΩ with the increase in RH from 9 to 85%, with the highest sensitivity of 77% for film deposited at smallest distance of 1 cm

Tailoring Spectroscopic Properties of Er3+ doped Zinc Sodium Tellurite Glass via Gold Nanoparticles

Tailoring the spectroscopic properties of rare earth (RE) doped inorganic glasses mediated via surface plasmon resonance (SPR) by embedding metallic nanoparticles (NPs) with controlled concentration is prerequisite for photonic applications. Erbium (Er3+) doped tellurite glasses containing gold (Au) NPs are prepared and systematic characterizations are made to inspect the impacts of Au NPs of spectral features for desired tailoring. X-ray diffraction pattern confirm the amorphous nature of the glass samples and EDX analysis detects elemental traces. The UV-Vis spectra exhibit six absorption bands centered at 488, 523, 655, 800, 973 and 1533 nm corresponding to 4f-4f transitions of Er3+ ions. Glass sample containing 0.4 mol% Au (without Er2O3) reveals Au plasmon band at around 629 nm. The EDX spectra display elemental traces of Te, Er, Zn, Na and Au. Glass sample containing 0.2 mol% Au demonstrates maximum enhancement in the emission band intensity by a factor of 20.23 (orange), 18.35 (strong green), 16.80 (moderate green) and 15.46 (blue). The enhancement is attributed to the Au NPs assisted SPR effect. The beneficial features of proposed glasses nominate them as potential candidate for photonic devices and solid state lasers

IMPACT OF E-RECRUITMENT AND JOB-SEEKERS PERCEPTION ON INTENTION TO PURSUE THE JOBS

The study highlighted the significance of e-recruitment in the firms. In current epoch technology integrated the information in a sophisticated manner and has influenced on every setting of daily affaires. Hence job seekers are also get benefited with the internet era and start searching the jobs on internet. This study examined the relationship between the recruitment sources, job seekers’ perception and intention to pursue the job. Data was collected from 257 respondents and analysed in relation with the research objectives. The findings of the study showed that internet is the most preferred source to search the job among other recruitment sources. Furthermore, it is also suggested that the effectiveness of e-recruitment depends upon the placement of advertisement and salary is the most influential motivator to find interest in the job applied. Lastly, statistics of the study found that the recruitment sources and applicant’s perceptions of job significantly influence the intention to pursue the position applied by the job seeker

Performance of particleboard with palm kernel cake as filler

Particleboard is a common product of wood industry. Usually, the particleboard is used as a component of furniture manufacturing or part of building construction. In the production of particleboard, wood glue or binder is applied to form hard bonded particles. The usage of melamine-urea-formaldehyde (MUF) resin as a binder in particleboard production is widely practised. Due to low solid content and the cost of MUF resin, some particleboard manufacturers are adding filler to increase the solid content and to reduce the cost of binder. For example, industrial-grade wheat flour and palm shell powder are commonly used as filler. The performance of wood products is significantly affected by the type of filler used due to the compound composition. Therefore, a study conducted in this work is to investigate the performance of MUF resin-based particleboard produced with palm kernel cake powder as filler. Palm kernel cake (PKC) was chosen due to the protein content that might help in the binding strength and the reduction in free formaldehyde in the wood product. The investigation was conducted by the preparation of particleboard in laboratory with various curing time and quantity of MUF resin and filler used. The performance properties of particleboard such as water absorption (WA), thickness swelling (TS), modulus of rupture (MOR), and modulus of elasticity (MOE) were investigated. Response surface methodology (RSM) of design expert software was used for the experimental design and optimization. The results shown that there is some effect of filler on the performance properties particleboard produced. The optimized or targeted performance also can be identified via design expert software

The linkage between virtual reality experience, visiting experience, and destination loyalty: Perspective of Muslim tourists from the West

This study examines the loyalty of Muslim tourists based in Western countries by incorporating their experiences visiting the destination in person and via virtual reality (VR). Data was gathered using an online survey from 330 Muslim tourists who have experience of actually visiting tourism destinations and via VR. This study employed partial least square (PLS) to examine the proposed destination loyalty model. Data analysis reveals that Muslim tourists’ loyalty toward a tourism destination is driven mainly by perceived experience quality from visiting the destination and experience with VR content with halal experiences demonstrating an insignificant effect on their loyalty