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Active Microfluidic Mixer with Fully-Differential Rotary Blades
No full textMixing of microfluidic flows is difficult due to the fact that microfluid is generally laminar flow and turbulence is not enough. To improve the mixing of microfluid, passive or active microfluidic mixers are developed. Active micromixers need external energy input, but generally result in better mixing outcome compared to passive micromixers. In this poster, an active rotary microfluidic mixer with four rotary blades is designed. It has three inlets and one outlet. The four rotary blades introduce turbulence of the microfluid to help improve the mixing. The four rotary blades are arranged to form a fully differential structure. They can be activated to rotate clockwise, counter-clockwise or with a combination of both. The shape of the micromixer is custom-designed to reduce the dead angle compared to traditional cylinder mixer
Chermak-Delgado Simple Groups
No full textIn mathematics, a group is a set of elements equipped with a binary operation that satisfies the axioms of identity, inverses, and associativity. A subgroup of a group is a subset which is itself a group under the same binary operation. Subgroups of a group can be displayed in a subgroup lattice, which is a diagram where lines are drawn to illustrate set containment, and which as an algebraic structure satisfies the conditions of join and meet. A normal subgroup of a group is a subgroup which is invariant under the action of conjugation. The normal subgroup lattice of a group has nice properties. For example, in the normal subgroup lattice, the join of two subgroups is simply the product of those subgroups. In 1989, A. Chermak and A. Delgado[2], discovered a new subgroup lattice for finite groups, which has since been called the Chermak-Delgado lattice. This lattice consists of those subgroups which have maximal Chermak-Delgado measure. The CD-measure is defined as the product of the order of the subgroup and the order of its centralizer subgroup. The Chermak-Delgado lattice shares many nice properties in common with the normal subgroup lattice, but it has the unique property that it is self-dual, which means that if you flip it upside down, you get the exact same diagram. Below is the CD lattice for the quaternions group, Q8
Design and Evaluation of a Logistics Network for Tire Recovery in Turkey
No full textTire remanufacturing, commonly known as tire retreading, and tire recycling are very profitable, yet many companies who reprocess used tires mostly conduct either only recycling or only retreading in Turkey. In this study, the profitability of adding a tire retreading facility into the logistics network for a company in Turkey who currently conducts recycling operations only is investigated. The problem is formulated and solved as a mixed integer programming (MIP) model to find the optimal design that maximizes the overall profit. Numerical experimentations are conducted to see the effects of changing return parameters on the optimal design and profit
A Seat at the UN Security Council for India? How the Indian Diaspora in the US may be key...
No full textPrime Minister Narendara Modi assumed his role as India’s Head of Government in May 2014. One of his initiatives has been his appeal for United Nations reform with a specific focus on India assuming a broader role, including a permanent seat in the UN Security Council. While President Obama announced both in April and in September 2015 that he would support India having a permanent seat at the UN, the road to permanent Security Council membership for India, in spite of many reasons why this would make sense, will face obstacles because of the processes required to effect UN reform. The Indian diaspora notably in the United States may play a key role in allowing this to happen in the coming decade
Small Island Developing States and the Threat of Anthropogenic Climate Change
No full textAnthropogenic emissions of greenhouse gases (GHGs) and toxic chemicals in the atmosphere are causing increasing levels of contamination, pollution, and warming of the Earth’s surface at an unprecedented rate. Because of their intrinsic vulnerabilities, Small Island Developing States (SIDS) are particularly susceptible to the impacts of global climate change. Despite recent accomplishments and progress in achieving climate neutrality and ocean conservation, this research argues that SIDS continue to suffer severe impediments in the pursuit of sustainable development
Voldemort NOSQL Database
No full textDistributed storage is the backbone of many of the largest scale web sites. Traditionally these systems have been the province of web giants like Google, Yahoo, and Amazon; but a recent surge of open source systems have begun to make this available to a much broader user base. This includes the design and implementation of Project Voldemort, an open source distributed storage system originally developed at LinkedIn. Voldemort handles a big chunk of traffic at Linkedin serving thousands of requests per second over terabytes of data. Voldemort is a distributed data store that is designed as a key-value store used by LinkedIn for high-scalability storage. Voldemort is still under development. It is neither an object database, nor a relational database. It does not try to satisfy arbitrary relations and the ACID properties, but rather is a big, distributed, fault-tolerant, persistent hash table. A 2012 study comparing systems for storing APM monitoring data reported that Voldemort, Cassandra, and HBase offered linear scalability in most cases, with Voldemort having the lowest latency and Cassandra having the highest throughput
Graphene Semiconductor Field Effect Transistor
No full textManoj kumar Manimaran's, Isaac Macwan's, and Prabir Patra's poster on a Graphene Semiconductor Field Effect Transistor
Education through Expression: Supporting Youth Performance as a Tool for Coexistence Building in East Jerusalem
No full textThe Israel/Palestine conflict has a way of repeating itself; a way of crisscrossing in and out of the headlines of mainstream international media, often remaining as a spotlight to ongoing problems in the Middle East more broadly. Peace talks have started and ended and begun again, but little progress is made when both sides claim stake to the land. There is a growing roar from civil society on both sides that changes must be made, while the changes may be different they stem from the hope for safety and freedom. These people are split both mentally and physically by a wall but there is hope yet. Violence between Israelis and Palestinians which seem to dominate the discussion is not the only story to be told, there is a story of hope, a story of the arts being used as a tool for education and for self-expression. This hope is being provided by arts programming that allows for Israeli and Palestinian youths to create works together, which allows them to have an outlet for their emotions and provides them with a non-violent path to resistance. By highlighting these stories and by creating a new performance based- alternative to this conflict with an original peace and implantation plan, perhaps a new door can be opened on a path towards coexistence and ultimately peace
Visual Servoing Using an Autonomous Quadcopter
No full textThe goal of this project is to make autonomous quadcopter track and follow a given object in 3D space. We use visual servoing and adapted such that it can autonomously guide a quadcopter. In this poster we explain the technique and results
MarkLogic Database – Only Enterprise NoSQL DB
No full textMarkLogic DB is one of the Enterprise NoSQL database that supports multiple-model database design. It is optimized for structured and unstructured data that allows to store, manage, query and search across JSON, XML, RDF (Triplestore) and can handle data with a schema free and leads to faster time-to-results by providing handling of different types of data. It provides ACID Transactions using MVCC (multi-version concurrency control). One of the important key feature of MarkLogic is its Bitemporal behavior by providing data at every point in time. Due to its shared-nothing architecture it is highly available and easily and massively scalable with no single point of failure making structured data integration easier. It also has incremental backup means to only backup the updated data. Marklogic provides Hadoop integration and Hadoop is designed to store large amount of data in Hadoop Distributed File System (HDFS) and works better with the transactional applications