NASA Tech Briefs, November 1990

Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences

Astronautics and aeronautics, 1970. Chronology on science, technology, and policy

An immediate reference to aerospace-related events of 1970 is provided to help historians in preserving historical accuracy and precision. Chronologies of major NASA launches, and manned space flights for 1970 are included

Unmet goals of tracking: within-track heterogeneity of students' expectations for

Educational systems are often characterized by some form(s) of ability grouping, like tracking. Although substantial variation in the implementation of these practices exists, it is always the aim to improve teaching efficiency by creating homogeneous groups of students in terms of capabilities and performances as well as expected pathways. If students’ expected pathways (university, graduate school, or working) are in line with the goals of tracking, one might presume that these expectations are rather homogeneous within tracks and heterogeneous between tracks. In Flanders (the northern region of Belgium), the educational system consists of four tracks. Many students start out in the most prestigious, academic track. If they fail to gain the necessary credentials, they move to the less esteemed technical and vocational tracks. Therefore, the educational system has been called a 'cascade system'. We presume that this cascade system creates homogeneous expectations in the academic track, though heterogeneous expectations in the technical and vocational tracks. We use data from the International Study of City Youth (ISCY), gathered during the 2013-2014 school year from 2354 pupils of the tenth grade across 30 secondary schools in the city of Ghent, Flanders. Preliminary results suggest that the technical and vocational tracks show more heterogeneity in student’s expectations than the academic track. If tracking does not fulfill the desired goals in some tracks, tracking practices should be questioned as tracking occurs along social and ethnic lines, causing social inequality

Where is the Global Transaction Centre of RMB: Shanghai, Hong Kong or perhaps London?

Session OSS1: Geographies of Finance and FinancialisationConference Theme: Sustaining Regional FuturesThis paper presents preliminary results of a study on the world major foreign exchange markets and FOREX trading centres. This research focuses on the recent trends of transactions of the world major foreign currencies, their geographical locations and the driving forces behind them. It also touches upon the relation of “on-shore” and “off-shore” characteristics, which helps to distinguish the importance and prominence of FOREX trading centres. The findings could shed light on the potential location and emergence of a global RMB transaction centre-the so-called RMB off-shore centre that Shanghai and Hong Kong are currently competing for, which is a battle that London and Singapore would also like to join.postprin

Performance analysis for wireless G (IEEE 802.11G) and wireless N (IEEE 802.11N) in outdoor environment

This paper described an analysis the different capabilities and limitation of both IEEE technologies that has been utilized for data transmission directed to mobile device. In this work, we have compared an IEEE 802.11/g/n outdoor environment to know what technology is better. The comparison consider on coverage area (mobility), throughput and measuring the interferences. The work presented here is to help the researchers to select the best technology depending of their deploying case, and investigate the best variant for outdoor. The tool used is Iperf software which is to measure the data transmission performance of IEEE 802.11n and IEEE 802.11g

Performance Analysis For Wireless G (IEEE 802.11 G) And Wireless N (IEEE 802.11 N) In Outdoor Environment

This paper described an analysis the different capabilities and limitation of both IEEE technologies that has been utilized for data transmission directed to mobile device. In this work, we have compared an IEEE 802.11/g/n outdoor environment to know what technology is better. the comparison consider on coverage area (mobility), through put and measuring the interferences. The work presented here is to help the researchers to select the best technology depending of their deploying case, and investigate the best variant for outdoor. The tool used is Iperf software which is to measure the data transmission performance of IEEE 802.11n and IEEE 802.11g

Developing an Ecological Social Justice Framework for Ocean Energy Technologies: Case Studies From the Phillipines

Unless subjected to skeptical and conscious scrutiny, environmentally-friendly ocean energy technologies can become Trojan machines of social inequity due to the subtle re-organizing influences of technologies on culture and the society. Environmental laws that promote or regulate ocean energy technologies can act as Trojan legal regimes in the absence of a framework for assessing and anticipating their adverse impacts on social justice. Environmental justice is inadequate for this task, so an alternative framework is proposed: ecological social justice, drawn from the Third Worlds perspective of sustainable development as equitable sharing. Though overshadowed by the prevalent notion of sustainable development as limits to growth, a review of international environmental law shows that the ideas of equitable sharing have persisted, underpinning demands for more equitable distribution of resources and environmental amenities, greater public participation in decision-making, and special attention in favor of specified social groups. Beginning with the critiques of environmental justice and then drawing upon a substantivist view of the role of the Economy as an ecological link between Society and Nature, a sketch of ecological social justice is drawn. The assessment of whether specific legal regimes or their implementation promote or hinder social justice revolve around three focal points: distribution, recognition, and participation, and pay special attention to the role of culture and power in society. The assessment also incorporates and emphasizes the local conception of social justice in order to remain true to its ecological character. To demonstrate, the paper conducts detailed case studies of the Philippines. The 1987 Constitution established a right to environment as a result of the historical evolution of a constitutional policy of promoting social justice, This caused Philippine environmental and ocean resource laws to incorporate provisions that promote ecological social justice. Analysis of Philippine ocean environment and energy laws and two internationally-recognized ocean energy projects reveals insights into how even the most environmentally-friendly but complex technologies can lead to domination and oppression, and how guiding ideals of equitable sharing at the local levels can lead to more socially-just solutions

Esa 12th Conference: Differences, Inequalities and Sociological Imagination: Abstract Book

Esa 12th Conference: Differences, Inequalities and Sociological Imagination: Abstract Boo