GREENHOUSE REMOTE MONITORING & CONTROL SYSTEM

Continuous control and monitoring of the greenhouse factors can be considered as a pivotal part in the production practices. The rate of crop’s growth highly influenced by the surrounding optimal climate conditions, but in order to do so, they required sets of expensive and complex equipment. Conventional systems used an excessive work to link and dispense the transducers and their control systems. One of the reasons why it’s expensive is the requirement of the systems of having a wide range of power wires and data cables to and from the sensors to control systems. Plus, for users such as growers and planters for businesses are having difficulties to monitor and control its system from any remote location with the system applied only allowed to be control from the control room and et cetera. To overcome these drawbacks, this proposal intends to describe how the innovative greenhouse control system can be characterized as an event-based system, where every control actions are primarily deliberated compared to the events formed by instabilities from surrounding elements. Proposed control system offers a costs-saving solution with low maintenance required, as well as producing a great performance results. This solution also with eliminate the over-dependability of the industry to the human workforce today

Pembangunan sistem pembelajaran berasaskan web untuk mata pelajaran Matematik tingkatan satu di bawah tajuk Peratus

Pembangunan sistem pembelajaran berasaskan web untuk mata pelajaran Matematik Tingkatan Satu di bawah tajuk Peratus ini bertujuan untuk menambah bahan pembelajaran dengan menggunakan laman web. Model reka bentuk yang diterapkan ialah model Rapid Prototype manakala strategi pengajaran adalah dalam bentuk tutorial dan kaedah eksplorasi serta kaedah penyelesaian masalah. Perisian pembangunan laman web Microsoft FrontPage 2003 digunakan kerana ia mudah dikendalikan dan berkemampuan untuk membina laman web yang interaktif. Selain itu, beberapa perisian tambahan lain seperti Adobe Photoshop, Adobe Macromedia Dreamweaver MX 2004, Adobe Macromedia Flash MX dan sebagainya turut digunakan bagi mengintegrasikan elemen-elemen multimedia ke dalam laman web ini. Pengintegrasian elemen-elemen tersebut membolehkan pelajar meneroka dan melibatkan diri secara aktif dalam proses pembelajaran. Laman web in telah disemak oleh beberapa orang pakar matematik dan multimedia untuk menentukan ketepatannya. Diharapkan agar laman web ini dapat memberikan manfaat di samping mempelbagaikan lagi kaedah pembelajaran matematik yang sedia ada untuk pelajar-pelajar di sekolah mahupun sesiapa sahaja yang ingin mempelajarinya

Flow past a fixed and freely vibrating drilling riser system with auxiliaries in laminar flow

Drilling risers used in oil and gas operations are subjected to external loads such as wave and current. One of the phenomena that arise from the external loads is the Vortex-Induced Vibration (VIV), which affects the performance of the riser due to excessive vibration from the vortex shedding. A significant factor influencing the VIV is the design of the drilling riser and its auxiliary lines. Until now, the optimum geometrical size and gap between the auxiliary and the main riser are still very scarcely studied. In this paper, the main objective is to study the effects of the gap ratio (G/D) on the vortex shedding phenomenon on a fixed and freely vibrating riser. The riser system was modelled with a main drilling riser and six auxiliary lines with a constant diameter ratio (d/D) of 0.45 and gap ratio (G/D) = 0 to 2.0 in the laminar flow regime with Reynold Number, Re = 200. The simulations were conducted for Single Degree of Freedom (SDOF) using Computational Fluid Dynamics (CFD) software, Altair AcuSolve. It was found that the freely vibrating riser experienced higher lift and drag forces as compared to the fixed riser due to the synchronization (lock-in) of the shedding vibration and the natural frequencies. The lock-in phenomenon is normally observed on the drilling riser at different current directions. The forces are reduced when G/D is higher. The vortex shedding was significantly reduced for auxiliaries between 0.3 to 1.4. It is confirmed that by modifying the interaction of the vortices in the wake region with auxiliary lines, the hydrodynamic forces will be decreased. Finally, this fundamental study could potentially be used in the designing stage of an optimum drilling riser system by considering significant governing factors

Ergonomic Intervention Practice at the Workplace in Asian boundary: A systematic review

Work-related musculoskeletal disorders (WRMSDs) are considered occupational diseases that can cause extreme discomfort and impairment. Due to the high prevalence of WRMSDs in Asia, ergonomic intervention has become particularly important and received growing interest among scholars. This review aims to classify ergonomic intervention practices for better musculoskeletal health at workplaces in Asian countries. PRISMA was chosen to review 22 recently published ergonomic intervention studies obtained from the Scopus and WoS databases. The findings revealed three main approaches for ergonomic intervention: application of devices or tools (seven articles), administrative approach (seven articles), and a combination of both (eight articles).

Assessing Idiopathic Scoliosis Knowledge Levels Among Malaysian Physiotherapists and Associating Their Clinical Experience

Physiotherapists play a significant role in the conservative management of idiopathic scoliosis (IS) patients. This study aimed to determine the level of knowledge on IS among practising physiotherapists and the association between years of clinical experience and the level of knowledge. A total of 63 physiotherapists responded to the International Society on Scoliosis Orthopaedic and Rehabilitation Treatment (SORSOT) questionnaire. The findings demonstrated that the level of knowledge among the physiotherapists was poor, particularly regarding the prevalence, diagnosis, and treatment of IS. There was a significant association between years of clinical experience and the level of knowledge

Legal considerations on OTEC deployment in Malaysia

It is predicted that the world’s primary energy demand would rise to 37% higher by the year 2040, and this would consequently increase current pressures on the global energy system. This would in turn make renewable energy more viable against non-depletable and sustainable energy. Malaysia has made an effort to meet this energy forecast by reducing the reliance on biomass for energy production, and is committed in making it a reality. The ocean thermal energy-driven development based on the ocean thermal energy conversion technology (OTEC) has great potential in leading the Malaysian renewable energy industry. However, this cannot effectively take place until certain legal impediments are identified. Thus, a legal analysis must be conducted to provide the Malaysian government or any government authority in the world to be aware of such legal impediments in ensuring success of their OTEC venture. Given the industry is at its infant stage, such a legal review is hoped to eventually promote further legal analysis on OTEC-related activities

Nephrotoxicopathology properties of gold and iron oxide nanoparticles with Perchloric Acid & SiPEG as radiographic contrast media

Introduction: Exponential research and development of nanotechnology has lead to its implementation in medical line such as radiographic imaging. In current practice, iodine is clinically used as a contrast media in radiographic analyses. However, contraindication of iodine to kidney in clinical practice warrants for a better contrast enhancer with lower toxicity. Gold nanoparticles (GNPs) and Iron Oxide nanoparticles (IONPs) have been proposed as potential iodine’s substitute due to their novel biocompatibility. Methods: In accordance with technology-driven toxicity impact, an animal modeling study has been conducted to assess the nephrotoxicopathology of GNPs and IONPs with Perchloric Acid and SiPEG by biochemical study, in-depth tissue examination by histopathology, apoptosis, and ultrastructural observation, and molecular analysis by Comet Assay. Results: Renal function test (RFT) revealed significant alteration in iodine group compared to nanoparticles and negative control group (p<0.05). Reactive oxygen species (ROS) generation and lipid peroxidation (MDA) levels demonstrated significant reduction in both nanoparticles’ groups compared to iodine (p<0.05), suggesting for lower oxidative stress induction. Morphological aberration demonstrated by histology and ultrastructural evaluation (TEM) showed a distortion in kidney tissues and nucleus’ structure of iodine-administered group as compared to control and nanoparticles’ group. Apoptosis detection by TUNEL assay for GNPs and IONPs group also revealed a significant reduction in apoptotic cells compared to iodine group. Comet assay revealed significant reduction in DNA damaging effect of GNPs and IONPs group compared to iodine group. Conclusion: The present study may postulate that GNPs and IONPs show better contrast enhancer properties with lesser toxic properties than iodine

Evaluation of healthcare science student learning styles based VARK analysis technique

This study aimed to evaluate the learning styles among healthcare students and to study the relationship with their academic achievement. This cross-sectional study was conducted among 137 healthcare students from six different courses. Data was collected using a self-administered questionnaire and developed based on the original visual, aural/auditory, read/write, and kinesthetic (VARK) assessment. The questionnaire was divided into two sections: the demographic status and the learning style perspective. A total of 119 respondents (86.8%) has chosen unimodal as their learning styles, while the rest of the 18 respondents (13.2%) choose multimodal as their preferred learning method. Among the unimodal learning styles, visual (32%) and reading (26%) were most preferred among respondents. The auditory and kinesthetic methods of learning were less and accounted for 10% to 20%. Notably, in multimodal learning styles preferences, 4% of students prefer a combination learning style of visual and kinesthetic methods. There was no significant relationship between learning styles and academic achievement using Pearson’s Chi-square test (p>0.05). Hence, both were independent of one another. Hence, some of the dominant learning styles needed to be considered based on their future profession

Evaluation of radiation attenuation properties on a various composition of polydimethylsiloxane (PDMS) for fabrication of kidney phantom

Chemical compounds such as polydimethylsiloxane (PDMS) and hydrogen silicone (HS) have been extensively used for fabricating medical phantoms due to its human tissue equivalency. This study aimed to evaluate the mass attenuation coefficient, effective atomic number, and other radiation attenuation properties of various polydimethylsiloxane samples and to verify the best material that can be used to simulate the kidney tissue. There are six samples of polymers in total, which are denoted as S0, S1, S2, S3, S4 and S5; these were 20/0/0, 16/4/0, 16/0/4, 12/4/4, 10/4/6 and 8/4/8, respectively with the composition of PDMS, HS and water. The Photon Shielding and Dosimetry (Phy-X/PSD) software (Phy-x.net) were used to estimate the attenuation properties, and the results were compared with the theoretical values obtained from the XCOM platform. The values of effective atomic number, mass attenuation coefficient, and linear attenuation coefficient, for PDMS S0 are reported to be the highest compared to all other samples, as S0 is based on 100% PDMS without any water and HS. The S1 sample, which only contained 20% of HS, was found to be higher than S2 sample, which had 20% water but without any HS. Hence, the water in samples significantly influences the radiation attenuation properties for photon energy. The Zeff for soft tissue and PDMS are different; their respective atomic numbers differ due to a presence of higher elements such as Si. This study reveals that the modified material, S1 samples constructed from 80% PDMS and 20% hydrophilic can be used to simulate the kidney in terms of the total mass attenuation coefficient, CT number and effective atomic number