Lingyi Zhang

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1-Bromopropane (1-BP), an alternative to ozone-depleting solvents, is reported to exhibit neurotoxicity and reproductive toxicity in animals and humans. However, the underlying mechanism of the toxicity remains elusive. This study was designed to identify the microglial changes and oxidative stress in the central nervous system (CNS) after 1-BP exposure.(More)
The Internet today offers primarily a best-effort service. Research and technology development efforts are currently underway to allow provisioning of better than best-effort Quality of Service (QoS) assurances. In this article, we develop a spot pricing framework for intra-domain expected bandwidth contracts with loss based QoS guarantees. The framework(More)
The Internet today offers primarily a best-effort service. Research and development efforts are currently underway to allow the provision of better than best-effort quality of service assurances. In this article we develop a spot-pricing framework for bandwidth assured Internet service contracts. A nonlinear pricing model forms the basis for the framework.(More)
The Internet today mostly offers a simple best-effort mode of service. The capabilities of the Internet will be significantly enhanced if it supports better QoS modes, especially when QoS is provided for end-to-end services. This enhancement in the Internet's capabilities requires both technological development and economic mechanisms to support better QoS(More)
The technological advances in recent years are allowing Internet Service Providers (ISPs) to provide Quality of Service (QoS) assurance for traffic through their domains. This article develops a spot pricing framework for intra-domain expected bandwidth contract with'a loss based QoS guarantee. The framework accounts for both the cost and the risks(More)
The technological advances in recent years are allowing Internet Service Providers (ISPs) to provide Quality of Service (QoS) assurance for traffic through their domains. This article develops a spot pricing framework for intra-domain expected bandwidth contract with a loss based QoS guarantee. The framework accounts for both the cost and the risks(More)
During the fast switching in Ge2Sb2Te5 phase change memory devices, both the amorphous and fcc crystalline phases remain metastable beyond the fcc and hexagonal transition temperatures respectively. In this work, the metastable electrical properties together with crystallization times and resistance drift behaviour of GST are studied using a high-speed,(More)
Dynamic scheduling problems arise in areas, including traveling salesman problems, vehicle routing, nuclear fuel assembly loading patterns, and asset scheduling for resource allocation problems, to name a few. A generalized 3-dimensional scheduling problem is a decision making process that involves allocating limited resources to a set of tasks over time,(More)