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Selected Works

2017

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Articles 241 - 255 of 255

Full-Text Articles in Engineering

Efficient Data Caching Management In Scalable Multi-Stage Data Processing Systems, Jiayin Wang, Zhengyu Yang, David Evans Dec 2016

Efficient Data Caching Management In Scalable Multi-Stage Data Processing Systems, Jiayin Wang, Zhengyu Yang, David Evans

Zhengyu Yang

According to some example embodiments, a method includes: receiving, by a processor, from a data source, a processing profile comprising input data blocks and a plurality of operations for executing using the input data blocks; executing, by the processor, one or more of the operations of the processing profile to generate a new output data after each of the executed one or more operations; storing, by the processor, the new output data from at least one of the one or more operations as intermediate cache data; and transmitting, by the processor, the new output data from a final operation from …

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Automatic Data Replica Manager In Distributed Caching And Data Processing System, Zhengyu Yang, Jiayin Wang, David Evans Dec 2016

Automatic Data Replica Manager In Distributed Caching And Data Processing System, Zhengyu Yang, Jiayin Wang, David Evans

Zhengyu Yang

A method of data storage includes determining a latency distance from a primary node to each of two or more replica nodes, choosing a preferred replica node of the two or more replica nodes based on the determined latency distances, and write-caching data into the preferred replica node.

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Adaptive Caching Replacement Manager With Dynamic Updating Granularities And Partitions For Shared Flash-Based Storage System, Zhengyu Yang, David Evans, Jiayin Wang Dec 2016

Adaptive Caching Replacement Manager With Dynamic Updating Granularities And Partitions For Shared Flash-Based Storage System, Zhengyu Yang, David Evans, Jiayin Wang

Zhengyu Yang

A method of adjusting temporal and spatial granularities associated with operation of a virtualized file system, the method including analyzing past workloads of a plurality of virtual machines associated with the virtualized file system, and adjusting the temporal and spatial granularities to be similar to average re-access temporal and spatial distances of data sets corresponding to the past workloads.

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High Thermal Conductivity In Soft Elastomers With Elongated Liquid Metal Inclusions, Michael D. Bartlett, Navid Kazem, Matthew J. Powell-Palm, Xiaonan Huang, Wenhuan Sun, Jonathan A. Malen, Carmel Majidi Majidi Dec 2016

High Thermal Conductivity In Soft Elastomers With Elongated Liquid Metal Inclusions, Michael D. Bartlett, Navid Kazem, Matthew J. Powell-Palm, Xiaonan Huang, Wenhuan Sun, Jonathan A. Malen, Carmel Majidi Majidi

Michael Bartlett

Soft dielectric materials typically exhibit poor heat transfer properties due to the dynamics of phonon transport, which constrain thermal conductivity (k) to decrease monotonically with decreasing elastic modulus (E). This thermal−mechanical trade-off is limiting for wearable computing, soft robotics, and other emerging applications that require materials with both high thermal conductivity and low mechanical stiffness. Here, we overcome this constraint with an electrically insulating composite that exhibits an unprecedented combination of metal-like thermal conductivity, an elastic compliance similar to soft biological tissue (Young’s modulus < 100 kPa), and the capability to undergo extreme deformations (>600% strain). By incorporating liquid metal …

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Mechanical Properties And Microstructures Of Regenerated Cement From Waste Concrete, Yileng Du, Hongjuan Zuo Dec 2016

Mechanical Properties And Microstructures Of Regenerated Cement From Waste Concrete, Yileng Du, Hongjuan Zuo

Jack Lee

No abstract provided.

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Massive Open Online Courses: Integrating Open Source Technology And Open Access Literature Into Technology Based Degrees, Maurice Dawson, Sharon Burton, Dustin Bessette, Jorja Wright Dec 2016

Massive Open Online Courses: Integrating Open Source Technology And Open Access Literature Into Technology Based Degrees, Maurice Dawson, Sharon Burton, Dustin Bessette, Jorja Wright

Maurice Dawson

Massive Open Online Courses (MOOCs) are a new phenomenon of course delivery for students, faculty, and administrators to use.  As this technology continues to grow in the short term it is essential to develop a method in which Open Source Software (OSS), open source technologies, and open access literature can be incorporated to strengthen the MOOC environment. Strengthening the MOOC environment can be used as a method to increase retention as well as increase enrollment in higher education.  As Science, Technology, Engineering, and Mathematics (STEM) programs are going online it is imperative that the tools meet the demands of today’s …

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Printed Dot Quality In Response To Doctor Blade Angle, Bilge N. Altay, Alexandra Pekarovicova, Paul D. Fleming Dec 2016

Printed Dot Quality In Response To Doctor Blade Angle, Bilge N. Altay, Alexandra Pekarovicova, Paul D. Fleming

Bilge Nazli Altay

Doctor blade is one of the critical machine part of the gravure printing press that controls the amount of ink transfer on the substrate. The angle of the blade can be varied; however, an improper angle may cause major problems. In this study, the doctor blade angle was positioned at three different level to address its effect on the printed dot quality. Print trials were made on a web-fed gravure press at the speed of 650 ft./min. A high-resolution overhead camera was used to analyze the key dot attributes. The results showed that measuring only the density of printed dot …

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Irresistible Bargains: Navigating The Surveillance Society, Robert M. Pallitto Dec 2016

Irresistible Bargains: Navigating The Surveillance Society, Robert M. Pallitto

Robert M Pallitto

Agents in contemporary societies are faced continually with choices regarding engagement with technological artifacts. They can choose to engage or decline engagement after considering the costs and benefits in each case. However, certain aspects of the surveillance society may be irresistible in a number of ways, so that refusal to engage with them is not a realistic option. The proliferation of the Internet of Things (IoT), particularly as embedded in “smart city” initiatives, helps to make surveillance technologies potentially irresistible. After laying the conceptual groundwork for discussing irresistible bargains, this essay offers a two-part normative critique, focusing on the asymmetrical …

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Urban Waterways And Waterfront Spaces: Social Construction Ofa Common Good, Anne Taufen Wessells, Raul P. Lejano Dec 2016

Urban Waterways And Waterfront Spaces: Social Construction Ofa Common Good, Anne Taufen Wessells, Raul P. Lejano

Anne Taufen

No abstract provided.

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Impact Of Mismatch Angle On Electronic Transport Across Grain Boundaries And Interfaces In 2d Materials, Zlatan Aksamija Dec 2016

Impact Of Mismatch Angle On Electronic Transport Across Grain Boundaries And Interfaces In 2d Materials, Zlatan Aksamija

Zlatan Aksamija

We study the impact of grain boundaries (GB) and misorientation angles between grains on electronic
transport in 2-dimensional materials. Here we have developed a numerical model based on the firstprinciples
electronic bandstructure calculations in conjunction with a method which computes electron
transmission coefficients from simultaneous conservation of energy and momentum at the interface to
essentially evaluate GB/interface resistance in a Landauer formalism. We find that the resistance across
graphene GBs vary over a wide range depending on misorientation angles and type of GBs, starting
from 53 Ω μm for low-mismatch angles in twin (symmetric) GBs to about 1020 Ω μm …

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Impact Of Building Vibrations On Vibrocardiographic Signal Collection, Bolivar Perez Dec 2016

Impact Of Building Vibrations On Vibrocardiographic Signal Collection, Bolivar Perez

Bolivar Perez

According to the Centers for Disease Control and Prevention, heart disease is the number one cause of death in the United States, killing approximately 614,348 people a year (“Leading Causes of Death,” 2016). VCG signals, vibrocardiographic signals, can provide useful clinical information which may lead to develop new diagnostic methods. However, due to the sensitive equipment used to collect accurate results, any amount of outside noise or vibrations will taint the data collected and provide inaccurate results. Thus, the building vibrations and those of the surrounding areas where the VCG signals are being collected can potentially impact the end …

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Identifying Growth In India By Assessment Of Quality Of Products And Services, Romesh G. Mulgi, Dec 2016

Identifying Growth In India By Assessment Of Quality Of Products And Services, Romesh G. Mulgi,

International Scientific Journals

SMEs contribute about 40 percent of the country’s gross domestic product (GDP) in India. Research has shown that in most countries, SMEs generate by far more employment opportunities than big companies or the public sector. Employment is the major source of livelihood globally. No wonder the search for employment is one of the greatest reasons that accounts for the Rural-Urban migration. Many studies have been conducted to determine factors that influence growth on SMEs. The mixed results can perhaps be explained by contextual differences or the mix of variables observed. This study looked at the quality of the goods produced …

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Sustainable Construction Development As The Best Solution For Challenges Are Related To The Traditional Building, Biradar S. Chandra,, Ashish B. Ray Dec 2016

Sustainable Construction Development As The Best Solution For Challenges Are Related To The Traditional Building, Biradar S. Chandra,, Ashish B. Ray

International Scientific Journals

In this paper, sustainability is examined as one of the objectives of enabling man in construction industry. It has been observed that some of the developing countries in the west Africa are yet to practice sustainable building. As the developed countries battles with measures of maintaining and improving the quality of life for its citizens and harmonize within the local climate, tradition, culture, also the environment in the region, this study examines the level of awareness of sustainable construction among the key stakeholders in construction industry. A descriptive survey design using data collection instrument such as questionnaire was adopted. One …

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Tanzania Collaboratory 2014-2017, Thomas Fowler Iv Dec 2016

Tanzania Collaboratory 2014-2017, Thomas Fowler Iv

Thomas Fowler IV, DPACSA, FAIA

The work in this publication is a summary of ongoing work that started in 2014, when architecture and architectural
engineering students starting developing the master plan for the proposed Polytechnic University in Samé, Tanzania, Africa, working directly with ARUP’s David Lambert and the MBESESE Initiative. Since this time we have had 60 plus graduate and undergraduate students who have provided research and design input into the development of this project.

This work from 2014 – 2017 provides an update to the master plan and building designs for the Polytechnic University, along with proposed hotel designs have been developed for another …

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Development, Testing And Use Of An Instrumented Unmanned Aerial System To Investigate Changes To The Near-Surface Meteorology Within A Wind Farm, Kevin A. Adkins Dec 2016

Development, Testing And Use Of An Instrumented Unmanned Aerial System To Investigate Changes To The Near-Surface Meteorology Within A Wind Farm, Kevin A. Adkins

Kevin A. Adkins, PhD

No abstract provided.

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