On the Ergodicity of an Autonomous Robot for Efficient Environment Explorations

This paper addresses the autonomous robot ergodicity problem for efficient environment exploration. The spatial distribution as a reference is given by a mixture of Gaussian and the mass generation of the robot is assumed to be skinny Gaussian. The main problem to solve is then to find out proper timing for the robot to visit as well as leave each component-wise Gaussian for the purpose of achieving the ergodicity. The novelty of the proposed method is that no approximation is required for the developed method. Given the definition of the ergodic function, a convergence condition is derived based on the timing analysis. Also, a formal algorithm to achieve the ergodicity is provided. To support the validity of the proposed algorithm, simulation results are provided

Metasurface supporting quasi-BIC for optical trapping and Raman-spectroscopy of biological nanoparticles

Optical trapping combined with Raman spectroscopy have opened new possibilities for analyzing biological nanoparticles. Conventional optical tweezers have proven successful for trapping of a single or a few particles. However, the method is slow and cannot be used for the smallest particles. Thus, it is not adapted to analyze a large number of nanoparticles, which is necessary to get statistically valid data. Here, we propose quasi-bound states in the continuum (quasi-BICs) in a silicon nitride (Si3N4) metasurface to trap smaller particles and many simultaneously. The quasi-BIC metasurface contains multiple zones with high field-enhancement (‘hotspots’) at a wavelength of 785 nm, where a single nanoparticle can be trapped at each hotspot. We numerically investigate the optical trapping of a type of biological nanoparticles, namely extracellular vesicles (EVs), and study how their presence influences the resonance behavior of the quasi-BIC. It is found that perturbation theory and a semi-analytical expression give good estimates for the resonance wavelength and minimum of the potential well, as a function of the particle radius. This wavelength is slightly shifted relative to the resonance of the metasurface without trapped particles. The simulations show that the Q-factor can be increased by using a thin metasurface. The thickness of the layer and the asymmetry of the unit cell can thus be used to get a high Q-factor. Our findings show the tight fabrication tolerances necessary to make the metasurface. If these can be overcome, the proposed metasurface can be used for a lab-on-a-chip for mass-analysis of biological nanoparticles

Information Sharing among the government, university, and industry: a CIS approach

The study explores the concept of collaborative information system through the combined deployment of Quadruple Helix Model (QHM) collaboration promoted by Agensi Inovasi Malaysia, an agency under the Ministry of Science, Technology and Innovation Malaysia (MOSTI) and the “Whole-of-Government” (WoG) concept of ICT implementation across the Malaysian government agencies promoted by MAMPU. The four QHM collaborators are the government, universities, industries and citizens, which are involved in the human capital development and workforce employment in any country. The idea of having collaboration among all these four collaborators in information system is vital, where in the Innovation Economy, knowledge and information no longer resides just within the walls of an organization. QHM’s premise is that all four actors have equal roles to play in stimulating innovative human capital development in a country. The prime objective of this study is to investigate the possibility of four QHM actors collaborating by leveraging a standard online platform where each of them is able to access, exchange, and represent information for the greater benefit of the citizens for a particular country, especially in the context of Malaysia. The description of the collaborators includes the functionalities and information services offered by each of the collaborative icon together with brief concept of implementation mechanism. As the expected outcome, the citizens would get ample information based on their needs. The discussion incorporates the justification of why four actors have been chosen for collaboration in this study. Finally, future implications indicate the direction of the design and successful implementation of this study

Impact of Moral and Ethical Degradation on Poverty in Bangladesh: A Sustainable Solution from Islamic Perspective

The paper aimed to study the impact of degradation of moral and ethical values in some cases since this degradation had become a worried matter for our society In this study we also tried to mention some interior causes which have an exquisite interrelation with the poverty nature of Bangladesh Researchers followed the analytical method to complete this study The research shows there is a mentionable impact of educational political cultural and economic moral degradation of poverty Hence a critical proper sustainable solution from the Islamic perspective is needed to protect this degradation It is also proven that Islam as a comprehensive way of life encompasses a complete moral and ethical ground that is amplify in human social culture and their lifestyle So abide by the precept of Islamic views it is possible to build a sustainable social development in completing with moral ethical and Islamic perception with collectivel

Impact of Minimum Wage on Employment and Exports in Readymade Garments in Bangladesh

Readymade Garment (RMG) sector is the key sector of Bangladesh economy. It provides job opportunities for more than 4 million people and most of whose are women. Since last three decades, the RMG sector has become the leading export earning sector. It becomes possible only for cheap labour force. But inflation rate has in Bangladesh is also high. Thus the real wage in RMG sector is very low. As a result workers lead a measureable life. So, the government announced the fifth minimum wage. Theoretically, an increase in wage may decrease employment level and create job-less situation for workers. But this study does not find any effect of increasing minimum wage in RMG sector in Bangladesh on employment level and it does not create any unemployment. So, it seems to be blessing for the workers. Keywords: Impact, Readymade garments, Minimum wage, Worker.