A survey of advanced battery systems for space applications

The results of a survey on advanced secondary battery systems for space applications are presented. Fifty-five battery experts from government, industry and universities participated in the survey by providing their opinions on the use of several battery types for six space missions, and their predictions of likely technological advances that would impact the development of these batteries. The results of the survey predict that only four battery types are likely to exceed a specific energy of 150 Wh/kg and meet the safety and reliability requirements for space applications within the next 15 years

The informal Economy as an engine for poverty reduction and development in Egypt

The purpose of this paper is handling the informal sector in Egypt and the role it can play in accelerating the development process and poverty reduction. The structure of the paper starts with an introduction, and then gives a definition of development and its objectives in order to give a comprehensive ground for what will be discussed under the informal sector section and poverty section, as at the end the paper links development, informal sector with poverty reduction. Furthermore, the paper discusses situation of the informal sector in Egypt and the role of government in issuing the laws that may pave the way for creating a more conducive business environment for the Micro and Small Enterprises (MSEs) which constitute the traditional form of informal enterprises. In addition, the paper explains formalization of informal economy, showing the pros and cons of both formal informal sectors, most importantly its shows a trade off between the formality and informality. The paper closes with providing a policy recommendations and finally conclusion.Informal Economy, Formalisation, Economic Development, Poverty

A survey of advanced battery systems for space applications

The results of a survey on advanced secondary battery systems for space applications are presented. The objectives were: to identify advanced battery systems capable of meeting the requirements of various types of space missions, with significant advantages over currently available batteries, to obtain an accurate estimate of the anticipated improvements of these advanced systems, and to obtain a consensus for the selection of systems most likely to yield the desired improvements. Few advanced systems are likely to exceed a specific energy of 150 Wh/kg and meet the additional requirements of safety and reliability within the next 15 years. The few that have this potential are: (1) regenerative fuel cells, both alkaline and solid polymer electrolyte (SPE) types for large power systems; (2) lithium-intercalatable cathodes, particularly the metal ozides intercalatable cathodes (MnO2 or CoO2), with applications limited to small spacecrafts requiring limited cycle life and low power levels; (3) lithium molten salt systems (e.g., LiAl-FeS2); and (4) Na/beta Alumina/Sulfur or metal chlorides cells. Likely technological advances that would enhance the performance of all the above systems are also identified, in particular: improved bifunctional oxygen electrodes; improved manufacturing technology for thin film lithium electrodes in combination with polymeric electrolytes; improved seals for the lithium molten salt cells; and improved ceramics for sodium/solid electrolyte cells

The Religious and Anthropological Perspectives of Development and Poverty

This paper examines the role of both religion and anthropology in development and accordingly reducing poverty. Within this introduction I intend to discuss the reason invited me to handle this problem. This reason is that I see both religion and anthropology can play a crucial role in the development process and accordingly lead to reducing poverty.Anthropology, Religion, Poverty, Development