Search

The primary aim of this study is to investigate the influence of using glass dust as an additional in conventional concrete material on the properties of fresh and hardened concrete. Soil pollution happen when non-biodegradable materials disposed into land. However, the used of this non- biodegradable can do wonder for construction purposes. This is due to the non- biodegradable materials which cannot be broken down to simple organic molecules by micro-organisms. Glass dust is one of the example of non- biodegradable. Nowadays, the used of this dust becoming more popular due to its properties. In this study, the glass dust which consist of silica has being used as an additional ingredients to concrete cement. The concentrations of the glass has being varies to determine the mechanical properties e.g. compressive strength of M35 grade concrete. The variation of glass dust are from 10, 20 and 30%. The compressive strength of concrete cubes is tested after 7 and 14 days. The outcomes of the study are presented in tables and graphs.

Water hyacinth (Eichhornia crassipes) is a free-floating plant, which grows up to three feet in height. It has thick, waxy, rounded, glossy leaves, which rise well above the water surface on stalks. Water hyacinth is among the major problems currently facing lake Victoria which is the second-largest freshwater lake in the world by area and directly supports a population of more than 40 million East Africa’s (Tanzania, Kenya, and Uganda) inhabitants. In addition to that, the lake is source of the river Nile. Navigation, eco system, fishing industry, tourism, crop production, and livestock keeping are among the socio-economic impacts resulting from invasion of water hyacinth on lake Victoria. In this paper, a manual water hyacinth harvester is constructed, tested, and analysis.

The elements that contribute to the oil spill incidents can be separated into human factors, technical factors, and natural factors. The human factors consist of fatigue, unsafe behavior, illegal releasing the oil to the sea, poor emergency planning response, and human activities. Meanwhile, the technical factors covered ship collision, vessel condition, engine oil problem, pipeline leak, loading and unloading activity, oil digging, and shipwreck. Besides, the natural factors cover tidal-flow, ocean-stream, and wind speed-driven advection, mechanical stretching, turbulent dispersion, and bad ocean environment. There are several precautionary steps to avoid and lessen the proportion of oil spill incidents at sea. This research concentrates on recognizing the effective precaution steps in protecting the marine environment from oil spill pollution. It covered two important elements such as ship operations and ship design. The choice of the respondents involved staff from one port at various levels, senior experienced respondents from the marine academic institute, and selected residents. A 70 questionnaire survey has been performed to accumulate significant and precise figures. The data is analyzed by using SPSS from 53 respondents. The findings reveal that the ship operations are granted the most important element in the efficiency of the precaution step to avoid the ship from the crash with the residual value at 25.5. Meanwhile, the ship design is the second criterion of the important precaution steps in the reduction of ship collision with the residual value at 20.5.

The primary objective of this study is to analyse the electrical power output generated from water flow in pipelines by using a suitable method to carry out the experiment. Hydroelectric power generation is widely used in Malaysian to generate electricity for consumer. As it comes with the function of a dam that collects water and the water flows from high level to low level that passes through turbine to generate electricity based on their capacity. For ship usage itself, the electricity is generated using diesel generators. If one applies the principle of hydroelectric power generation on ship, one can reduce the fuel consumption and dependency toward the generator. As pipelines are widely used in ship systems, there is always pressure in it no matter type of fluid in it. Moreover, only little alteration must be made to the system when applied by ship owners. The system consists of a turbine inside the pipeline connected to the shaft that rotates the rotor to generate electricity that can be stored using batteries or distributed for ship usage.

The public concern about the effect of underwater noise toward marine life has been increasing for years where the main contributor of anthropogenic noise is commercial shipping. This has a negative impact on the marine life where the responsible body such as the International Maritime Organization (IMO) and others have set a certain guideline for reducing underwater noise. This report will discuss how the rotation of propellers affects the underwater noise. The primary objective of this study is to analyse the effect of underwater noise generated from rotation of propellers by using a suitable method to carry out the experiment. There are several parameters used in this experiment such as the number of propeller blades, the propellers size, the speed of the motor (rpm), the depth of the measuring device, the horizontal and vertical position of the measuring device.

This paper studies the efficiency of a self-polishing anti-fouling paint when subjected to different parameters. Results and mechanism of the self-polishing anti-fouling paint are presented and described. Different types of binders for paint were used for the understanding and parameters such as underwater depth, thickness of paint and sun-orientation were compared over 60 days.

The emissions produced by hydrocarbon engines are one of the main sources to air pollution and climate change. In order to mitigate those problems, the emission produced by the engine can be eliminated by replacing the fuel in the engine’s block with solenoid. The model operates on solenoid with various speed settings of the engine. No emission was generated during the operation and the combustion-related part of the engine are removed, thus, reducing the overall weight of the engine. Waste heat is dissipated at the power transistor, solenoid, and piston due to losses such as ohmic resistance and eddy current. Due to nature of the solenoid which is similar to an inductor, this engine is expected to best operate as low-speed engine.

Once an oil spill incident happens, it produces serious long-term effects on environmental, social, economics, marine ecosystems, coastal communities, and human life. Thus, this paper reviews the challenges on the oil spill incidents in Malaysia faced by main government agencies such as the Marine Department, Department of Environment, and a key player private organization named PIMMAG. The reviews are from related journal, articles, and other online references, respectively. It is vital to analyze the challenges in the oil spill management as Malaysia is facing oil spill cases. The findings disclosed that the main challenges are human mobility, miscommunication, insufficient equipment, and unknown sources of the oil spill incidents.

A Transportation industry is a worldwide working system. Water transportation is the biggest known medium to human. In such immense task, many costing variables should be mulled over so as to pick up benefit. Real costs included are fuel utilization, send upkeep and fix, officials' workmanship, port charges, protection inclusion, and some more. These kind of costing are fundamental and can't be stayed away from as it will influence the whole activity. Anyway numerous examinations and inquires about are done every now and then to improve and to have an upgraded activity. As told before fuel utilization is an exceptionally critical viewpoint. It is imperative to advance the voyage activity, or toward the end it will cause a flood in fuel costs. For the duration of the time architects had attempted their best to limit the fuel utilization by having a streamlined ship activity. Be that as it may, in any case it yet still stays as an unsolved astounded. Then again contamination via pollution is an insulting issue which is corresponding to the development of human exercises. An irrefutable truth is this is for the most part brought about by people which are results identified with the quick advancement innovation. Numerous harms had and will happen if the issue isn't visited. Numerous endeavors have been made to turn out with an answer for the issue.[1] Numerous improvements had been done to the waste administration framework where waste items can be recycled and to be utilized in the first structure or in another one. Having an appropriate reusing strategy will guarantee a superior and much productive way of life. This exploration is predominantly expected to tackle both of these issues simultaneously. By utilizing pyrolysis strategy, waste products are thermally treated so as to create three kinds of by-products. These results are char, bio oil, and syngas which are fuel in three states. Later the results can be utilized as an elective fuel source to be utilized in delivery industry. The fundamental result that is engaged in this exploration was the bio oil, which is a bio diesel that can be utilized as fuel source locally available ship. The last decision was to decide an entirely appropriate recommendation of waste item that can be pyrolysed to deliver a superior marine fuel at much lower cost. In the end toward the finish of this exploration a solitary recommendation will be especially helpful in taking care of both the issues referenced previously. An extraordinary commitment to the earth and to the entire transportation industry will be accomplished.

The research review the application of contactless inductive charging for marine applications. Contactless power transfer (CPT) is the method to transfer power between two separately coil that known as primary and secondary winding. The CPT system is built from main component of winding that separated from primary and secondary winding through a large air gap for battery charging application. The principle of resonance is used to increase the efficiency of power transfer through large air gap between the winding. In addition, the compensation network is applied in primary and secondary winding of the CPT transformer to reduce VA rating and increased power transfer capability of the CPT system. Next, marine electrical propulsion and energy storage system such as battery, super capacitor, flywheel and super conducting magnetic energy storage will be discussed. The advancement of electrical propulsion ships make it reliable to the ship power system in term of fuel economy, and reduced emission and at the same time meet the increasing of power demands.

In this study, kapok/Chop Strand Mat (CSM) reinforced unsaturated polyester hybrid composites were fabricated using hand lay-up method with a boat composite sandwich- configuration laminate method. The glass CSM was used as a shell with kapok as a core, with an approximate total fiber content of 60%. Three different designated layers of kapok and weight ratios of (60/40)% and (40/60)% were used to fabricated for comparison purposes. Fire retardant properties were investigated using UL-94 which are vertical burning and horizontal burning test. The result showed that the hybrid composite with 3 layers of kapok took the longest time to burn. It has proved that the hybrid kapok/CSM reinforced displayed better in fire retardation than the raw CSM composites by using sandwich arrangement. It was found physical properties of kapok reinforced composite showed the increasing trend of water absorption and thickness swelling with the increasing storage time.