Digital Commons Network^™

Recovery Of Metallic Materials From Printed Wiring Boards By Green Pyrolysis Process, Alex Luyima, Lifeng Zhang, Jaan Kers, Viktor Laurmaa

Materials Science and Engineering Faculty Research & Creative Works

Currently, the main options for the treatment of electronic waste are involved in reuse, remanufacturing, and recycling, as well as incineration and land filling. Recycling of e-waste can be broadly divided into three major steps: (a) disassembly: selectively disassembly, targeting on singling out hazardous or valuable components for special treatment, is an indispensable process in recycling of e-waste; (b) upgrading: using mechanical processing and/or metallurgical processing to up-grade desirable materials content, i. e. preparing materials for refining process; (c) refining: in the last step, recovered materials are retreated or purified by using chemical (metallurgical) processing so as to be acceptable …

What’S In Your Cup: A Critique Of The Fair Trade System And Its Ability To Support Qualitative Socioeconomic And Environmental Transformation, Brittan M. Stockert

Master's Theses

No abstract provided.

Characterization Of Wave Physics Using The Rigorous Helmholtz Decomposition Based On The Surface Integral Equation, Xiaoyan Y.Z. Xiong, Wei E.I. Sha, Li (Lijun) Jun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

Helmholtz decomposition (HD) is a fundamental tool of vector calculus and plays an important role in electromagnetics. In this work, arbitrary vector field defined on the open or closed surface is decomposed into the sum of an irrotational (curl-free) vector field and a solenoidal (divergence-free) vector field by using the surface integral equation method. Unlike the popular loop-tree decomposition that is only a quasi-HD suitable for the circuit physics in the low frequency regime, the HD developed in this paper is rigorous and can capture both circuit and wave physics from very low frequency to high frequency regimes. The work …

An Efficient Method For Highly Oscillatory Physical Optics Integrals, Yu Mao Wu, Li (Lijun) Jun Jiang, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

In this work, we use the steepest descent path (SDP) method in the complex analysis to calculate the highly oscillatory physical optics (PO) integral with quadratic phase and amplitude variations on the triangular patch. Compared with traditional approximate asymptotic expansion approach, our method has significantly improved the PO integral accuracy by one to two digits (10 1 to 102) for evaluating the PO integral. Moreover, the computation effort for the highly oscillatory integral is frequency independent. © 2012 IEEE.

Distribution System Operation With Solid State Controller And Energy Storage Management, F. Meng, D. Shah, B. H. Chowdhury, M. L. Crow

Electrical and Computer Engineering Faculty Research & Creative Works

A novel distribution system infrastructure is proposed with solid state controller locating at load sites. an energy storage management algorithm is developed to optimize battery charge/discharge operation using forward dynamic programming method. This algorithm is implemented in a system test bed in PSCAD. the simulation results present economic benefits to private customers with reduced energy cost. It also reduces system peak demand which may improve system reliability. © 2012 IEEE.

An Automated Forward Operating Base Electrical Distribution System Simulator, Onur Kahveci, Mariesa L. Crow, Steven Corns

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, an automated forward operating base electrical distribution system simulator (ODCC) is developed. the ODCC has been developed based on the open platform distribution system simulator (DSS) that is able to create variable models of electrical systems and performing many types of analysis. © 2012 IEEE.

Developing Life Cycle Management Plans For Power Plant Components, Srinath Raghavan, Badrul H. Chowdhury

Electrical and Computer Engineering Faculty Research & Creative Works

A process to develop life cycle management (LCM) plans for power plant components is described. an LCM plan is a guide to make operational decision for a piece of equipment over its life cycle. an LCM typically consists of preventive maintenance schedule, condition monitoring and inspection activities, replacement or refurbishment plans and spares management. It is developed on the basis of component failure modes, operating history, maintenance practices, ageing, spares and obsolescence. Once an LCM plan has been formulated it can be compared with other alternative LCM strategies in order to minimize the long-term costs over the plant lifetime. for …

Implementation Of A Microgrid Central Controller In A Laboratory Microgrid Network, Md Rasheduzzaman, Shyam N. Bhaskara, Badrul H. Chowdhury

Electrical and Computer Engineering Faculty Research & Creative Works

When distributed generation (DG) units operate in a microgrid environment, there is a need for coordinated operation between the DGs, the utility grid and the loads. a Microgrid Central Controller (MGCC) can keep track of the status from the systemic point of view and command the local micro source controllers (MC) to ensure system stability. in various modes of operation, vis-à-vis grid-connected, islanded and during transition from grid-connected to islanded mode and vice versa, the MGCC can support the MCs by feeding the necessary information to contribute towards stable system operation. This paper discusses the implementation of the MGCC for …

President's Weekly Perspective, 12/10/2012, Robert G. Frank

President Frank's Administration

No abstract provided.

Deposition Of Gerald Sandoval 2012, Catholic Church. Archdiocese Of Santa Fe (N.M.)

Depositions

No abstract provided.

Fokker-Planck Equation Application To Analysis Of A Simplified Wind Turbine Model, Keyou Wang, Mariesa L. Crow

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a new method to evaluate the stochastic dynamic model of the wind turbine system using stochastic differential equations (SDE). the wind speed is described by the Rayleigh distribution which is constructed as the stationary solution of a one-dimensional nonlinear SDE. the dynamic model of the wind turbine system can be combined with this SDE of wind speed to expand to multi-dimensional stochastic differential equations. the time evolution of the probability density function of the system is described by the Fokker-Planck equation (FPE) which can be derived from the corresponding stochastic differential equations. the procedure is illustrated using …

程炜及大宁县程炜扶贫开发有限公司介绍, Wei Cheng

South South Forum 南南論壇

个人简历

程炜，女，1950年6月日出生在河北省武邑县。

Chengwei, female, June 3rd, 1950 born in Wuyi County, Hebei Province.

1956年因家乡发大水,随父母来到北京。

In 1956, she moved to Beijing with her parents because of flood.

1968年到山西省汾西县城关公社马沟大队插队。

In 1968, as educated youth, she left Beijing and worked in Magou production team, Chengguan Commune, Fenxi County, Shanxi Province.

1972年被推荐上了清华大学化工系高分子专业。

In 1972, she was recommended to study at Tsinghua University, majoring in Polymer Science

1976年1月被学校分配到燕山石化化工研究所，同时接到山西省汾西县委的邀请书，放弃了在北京工作的机会，回到了曾经插队的汾西县。

In 1976, on graduation, she was assigned to Yanshan Petrochemical Institute of Chemical Engineering. At the same time, she was invited by Fenxi County to return. She decided to give up the precious opportunity to work in …

Surviving The Fukushima Nuke Crisis : People’S Anger, Anguish, And Alternative Actions = 在福岛核泄漏危机中幸存下去：人民的愤怒、伤痛和另类行动, Masaaki Ohashi

South South Forum 南南論壇

The 2nd worst Nuke Crisis, which has begun 21 month ago in March 11, 2011 from Fukushima No. 1 Nuclear Power Station, has not settled in any sense, but is posing Fukushima people very difficult and unprecedented challenges. This presentation will examine following points:

1. A brief view on the troubled 4 reactors of the Fukushima No.1 Nuclear Power Station, in terms of continuing radiation discharge, on-going but slow dismantling process that takes more than 30-40 years, higher radiation levels in Fukushima Prefecture. etc.
2. The present location of Fukushima people, such as restriction areas (totally, night time etc.), locations and relocations(evacuations) …

Current Situation Of Farmers, Peasants' Movement, And Ecological Agriculture In Nigeria, Arigbede Olaseinde Dr.

South South Forum 南南論壇

No abstract provided.

Unemployment And Regulatory Policy, Eric A. Posner, Jonathan Masur

Coase-Sandor Institute for Law & Economics Research Paper Series

No abstract provided.

Unemployment And Regulatory Policy, Eric A. Posner, Jonathan Masur

Public Law and Legal Theory Working Papers

No abstract provided.

转基因话语、利益结构与基因竞赛 = Transgenicdiscourse, Interest Structure And Gene Competition, Li Zhou

South South Forum 南南論壇

由于近些年生物技术的突飞猛进，世界各国已经展开了一场类似于核竞赛，又远比核竞赛更为隐秘和严重的基因竞赛，我们需要认识转基因竞赛甚至战争的性质，走出技术化的缺乏主体性的转基因话语讨论。转基因研发推广过程中，有七股力量已经联合，形成一个利益共同体，使得转基因大潮势不可挡：跨国粮商得利润、外国政府得战略、地方政府得政绩、中资公司得好处、科研院所得经费、国家部门得租金、种粮农民得闲暇。我们需要认识让生存逻辑和生命逻辑，服从于商业逻辑和政治逻辑的转基因利益结构，认识其可能导致人类生存危机等系统性风险，旗帜鲜明地反对转基因育种和产业化推广；退一步讲，即使进行转基因技术的研发，也要采用国家集中体制，以防止类似核扩散的基因技术不可控行为的发生，阻止一场在种子领域的殖民掠夺；同时重点发展和推广常规育种，强化农田水利建设，采用更为安全可行的措施，以阻止人类在转基因领域的自杀式竞争。

Since the rapid development of the biotechnology in recent years, the countries in the world have already started a new kind of competition—genetic competition, which is similar to nuclear arms race but far more secret and serious. We need to recognize the nature of the transgenic contest and genetic war, getting out from the subjectivity-absent technical discussion on transgenic technology. In the process of transgenic research and development(R&D), seven forces have already jointed and formed a “community of interests”, pushing the transgenic trends overwhelming: the international food dealers gain profits, foreign government wins strategy, local government achieves performance, Chinese-funded …

Economic Resilience : Including A Case Study Of The Global Transition Network, Julie Richardson

South South Forum 南南論壇

This paper explores the dynamic properties of organisms and ecosystems that make them so resilient and capable of adapting to changing circumstances, allowing them to maintain an overall condition of coherence, wholeness and health while living in balance within the resources of the planet. Key principles of resilient ecological systems are explored including: self-regulation; positive and negative feedback; diversity; scale and context; cooperation; emergence and novelty; and ecological tipping points. In contrast, market based economic systems can produce unstable growth with unintended destruction of cultural and species diversity and homogenisation of global life-styles. The paper re-examines fundamental economic principles using …

Alternatives In Times Of The Reinvention Of Capitalism, Pablo Solon

South South Forum 南南論壇

Crisis & reconfiguration

1. A new attack to the labor force
2. Privatization of public services and knowledge (the commons)
3. The expansion of financialisation
4. A new assault to Mother Earth: Natural capital
5. Intervention, criminalization and war

Gpsa Council Meeting, 12/8/2012, Graduate And Professional Student Association

GPSA Meeting Agendas and Minutes

No abstract provided.

December 8, 2012 (Pages 7395-7508), Pennsylvania Legislative Reference Bureau

Volume 42 (2012)

No abstract provided.

Murray Ledger And Times, December 8, 2012, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Influence Of Volatile Degassing On Initial Flow Structure And Entrainment During Undersea Volcanic Fire Fountaining Eruptions, P. D. Friedman, Steven Carey, M. Raessi

Graduate School of Oceanography Faculty Publications

Release of dissolved volatiles during submarine fire fountaining eruptions can profoundly influence the buoyancy flux at the vent. Theoretical considerations indicate that in some cases buoyant magma can be erupted prior to fragmentation (~75% vesicle volume threshold). Laboratory simulations using immiscible fluids of contrasting density indicate that the structure of the source flow at the vent depends critically on the relative magnitudes of buoyancy and momentum fluxes as reflected in the Richardson number (Ri). Analogue laboratory experiments of buoyant discharges demonstrate a variety of complex flow structures with the potential for greatly enhanced entrainment of surrounding seawater. Such conditions are …

Launch And Landing Infrastructure On The Moon, Robert P. Mueller, Phillip T. Metzger, Wayne G. Finger, Steve W. Moore

Space Congress® Proceedings

To explore the solar system effectively, we need to develop outposts on the Moon, Mars, and other surfaces so that we can make use of their in situ resources, stage equipment for further exploration, and perform more in-depth scientific investigations in those chosen locales. This strategy will differ from our previous sortie missions to the Moon in that it will require engineers to develop infrastructure on planetary surfaces and thus export features of human civilization into space. One example of the need for engineering is the development of launch and landing pads on the Moon. Without these pads, the high …

Laying Out The Future Of Cryogenics, James Fesmire, James Stanley

Space Congress® Proceedings

NASA has developed a family of thermal test cryostats at the Cryogenics Test Laboratory at NASA’s Kennedy Space Center. The lab is a one-of-a-kind capability for research, development, and application of cross-cutting technologies to meet the needs of aerospace and other industry, government, and research institutions. Provided are experimental testing, prototype construction, engineering evaluation, and practical problem-solving for technology development with government and commercial partners worldwide. Technology focus areas include thermal insulation systems, cryogenic components, propellant process systems, and low-temperature applications. Our overall objective is to develop materials, produce new technology, and promote engineering for energy-efficient storage, transfer, and use …

Design Features Of Our Country’S Newest Commercial Launch Pad, Richard P. Pruss, Steven W. Moore

Space Congress® Proceedings

The new launch site at Wallops Flight Facility has completed design, construction, activation and is now preparing for orbital launches to support the Space Station resupply. The development of Pad 0A presented RS&H’s design team with special technical, managerial and financial challenges. The presentation describes the design approaches for the launch vehicle transit, launch mount, water systems, foundations, flame deflector and other special features and innovations. It describes the extra challenges presented by an extended engine test firing at the launch pad. It also reviews how the design was impacted by the schedule, cost and international demands of this project. …

Project Oasis: A Network Of Spaceports, Robert P. Mueller, Tracy Gill, Jeffrey Brink, Wiley Larson

Space Congress® Proceedings

Providing routine, affordable access to a variety of orbital and deep space destinations requires an intricate network of ground, planetary surface and space-based spaceports across the Earth (land and sea), in various Earth orbits, and on other extra-terrestrial surfaces. Advancements in technology and international collaboration are necessary to enable such a spaceport network to satisfy private and government customers’ research, exploration, and commercial objectives. Technologies, interfaces, assembly techniques, and protocols must be adapted to enable critical capabilities and interoperability throughout the spaceport network. The conceptual space mission architecture must address the full range of required spaceport services, such as managing …

Reliability, Maintainability, And Availability –Consideration During The Design Phase In Ground Systems To Ensure Successful Launch Support, Amanda Gillespie

Space Congress® Proceedings

The future of Space Exploration includes missions to the moon, asteroids, Mars, and beyond. To get there, the mission concept is to launch multiple launch vehicles months, even years apart. In order to achieve this, launch vehicles, payloads (satellites and crew capsules), and ground systems must be highly reliable and/or available, to include maintenance concepts and procedures in the event of a launch scrub.

In order to achieve this high probability of mission success, Ground Systems Development and Operations (GSDO) has allocated Reliability, Maintainability, and Availability (RMA) requirements to all hardware and software required for both launch success and, in …

Multi-Use Facilities - Repurposing Facilities Infrastructure To Support The Multi-Customer Environment, Dave Hertzler, Alan T. Deluna

Space Congress® Proceedings

Since the early 90’s the space launch business has undergone significant change in customers, composition, capacity, and key players. These changes have a resultant effect upon the spaceport industry. Some spaceports, in their current state, may not survive the probable future market and business environment. To stay in the game, spaceports are reexamining their target launch vehicles, services, and operations philosophy. One of the strategies being developed to accommodate current and future changes is to repurpose facilities to support multiple customers. The new vision is that multiple commercial, as well as government entities, having multiple spacecraft and launch vehicle configurations …

Nasa Ground And Launch Systems Processing Technology Area Roadmap, Nancy Zeitlin, Gregory Clements, Barbara Brown, Stan Schaefer, Mike Fawcett

Space Congress® Proceedings

In 2010, NASA developed a set of 14 draft roadmaps to guide the development of space technologies under the leadership of the NASA Office of the Chief Technologist. Each of these roadmaps focused on a particular technology area. The roadmaps are intended to foster the development of advanced technologies and concepts that address NASA’s needs and contribute to other aerospace and national needs. NASA contracted with the National Research Council (NRC) to perform an independent critique of the draft roadmaps. NASA assessed the NRC’s prioritizations and recommendations and developed the Strategic Space Technology Investment Plan (SSTIP) to outline the future …