A Study on the Wind and Geothermal as a Potential of Renewable Energy Sources in Malaysia

This paper is studies about the potential of renewable energy sources in Malaysia. Energy is one of the most valuable and desired resources over. In general, almost all countries in the world suffer a negative impact from the increasing oil prices. A new source of renewable energy from wind and geothermal is a possible contributor to solve the energy crisis. Even though, this renewable energy had already established especially in the developed countries, but until now the mature application in harvesting both energy is still not commercialization applied in Malaysia. Besides of that, the relevant scientific literature about these both energy employed in Malaysia is not easily found. Hence, this paper is presenting the previous research in harvesting the wind and geothermal energy that have been employed in other countries in term of their advantages, drawbacks, costing and technologies. This is the preliminary effort intended in order to investigate the relevancy and suitability to be implemented in Malaysia. In addition, the studies have gives a meaningful indicator regarding the effort to create a wind and geothermal power plant in Malaysia. As a final point, the idea that has been proposed in this paper would provide an understanding of the principle in harvesting the wind and geothermal energy and furthermore give a significant contribution for further research

The present and future of QCD

This White Paper presents an overview of the current status and future perspective of QCD research, based on the community inputs and scientific conclusions from the 2022 Hot and Cold QCD Town Meeting. We present the progress made in the last decade toward a deep understanding of both the fundamental structure of the sub-atomic matter of nucleon and nucleus in cold QCD, and the hot QCD matter in heavy ion collisions. We identify key questions of QCD research and plausible paths to obtaining answers to those questions in the near future, hence defining priorities of our research over the coming decades

An improved resonant wireless power transfer system with optimum coil configuration for capsule endoscopy

Resonant wireless power transfer is a prominent method of powering a biomedical capsule endoscope, in which the high efficiency of an inductive power link and the electromagnetic safety of biological tissues are greatly important. This paper presents a complete analytical model of a resonant wireless power transfer link, where the efficiency is remarkably increased with the improved power transmission coil configuration. This configuration involves two outer coils and one middle coil. The separation and turn ratios between the outer coils and the middle coil are 0.4 times of the coil radius and 3:2, respectively. An analysis of and comparison with the existing coil configuration show that the proposed configuration relatively attains higher Q-factor, coupling coefficient, and H-field uniformity, which lead to improvement in power transfer efficiency, stability, and electromagnetic safety. The analysis is validated through experiments. With a power receiving coil of Ø11 mm × 8 mm, the proposed power transfer coil attains a minimum efficiency of around 36.6% at the worst position of the power-receiving coil. The attained efficiency was 156% higher than the efficiency of 14.62% obtained by the best of existing coil at the same level of H-field uniformity. Incorporating high permeability core, up to 200 mW of power is transferred with the proposed coil at 300 kHz in accordance with the electromagnetic safety guideline

The Present and Future of QCD

International audienceThis White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclear Science Advisory Committee (NSAC) 2023 Long Range Planning process. A total of 424 physicists registered for the meeting. The meeting highlighted progress in Quantum Chromodynamics (QCD) nuclear physics since the 2015 LRP (LRP15) and identified key questions and plausible paths to obtaining answers to those questions, defining priorities for our research over the coming decade. In defining the priority of outstanding physics opportunities for the future, both prospects for the short (~ 5 years) and longer term (5-10 years and beyond) are identified together with the facilities, personnel and other resources needed to maximize the discovery potential and maintain United States leadership in QCD physics worldwide. This White Paper is organized as follows: In the Executive Summary, we detail the Recommendations and Initiatives that were presented and discussed at the Town Meeting, and their supporting rationales. Section 2 highlights major progress and accomplishments of the past seven years. It is followed, in Section 3, by an overview of the physics opportunities for the immediate future, and in relation with the next QCD frontier: the EIC. Section 4 provides an overview of the physics motivations and goals associated with the EIC. Section 5 is devoted to the workforce development and support of diversity, equity and inclusion. This is followed by a dedicated section on computing in Section 6. Section 7 describes the national need for nuclear data science and the relevance to QCD research