Latest technologies from University of Arkansashttp://arkansas.technologypublisher.comBe the first to know about the latest inventions and technologies available from University of Arkansasen-USSat, 22 Sep 2018 03:46:14 GMTWed, 15 Aug 2018 09:36:25 GMT 2018, University of ArkansasOn-Chip IEC ESD Protection Using Parasitic PNP Devices speed interface ICs require both IC-level and system level ESD protections due to system exposure to static electricity discharges. On-chip ESD protections for high speed interface ICs are difficult due to the stringent pin requirements. Specifically, the ESD designs for system-level ESD requirements are more challenging because of the high discharge current, limited type of ESD components and narrow protection window. Although system-level stress that reaches ICs will vary according to the board-level components and PCB layout, on-chip IEC ESD protection structure typically requires a tr...Wed, 15 Aug 2018 09:36:25 GMTmswaney@uark.edu fin design by additive manufacturing of metal for enhanced heat sink for electronics cooling, 09 Aug 2018 06:05:53 GMTmswaney@uark.edu integration of Phase Change Materials into Conduction Convection latent heat opimized thermal management through Novel geometries enabled in Additive manufatured heat sinks reliability of electronic modules depends, to a great extent, on the thermal performance of the system. As the power density of electronic modules increases, so does the heat from electrical losses. In order to avoid degradation or device failure caused by operation over maximum allowable temperature, heat must be effectively dispersed. A new design has been developed that integrates Phase Change Materials into a heat sink to enhance heat removal performance. This design uses Additive Manufacturing for the encapsulation of PCM at critical locations to provide a buffer against intermittent ...Thu, 09 Aug 2018 06:04:58 GMTmswaney@uark.edu mechanical-energy-based amplifiers for probing interactions of DNA with small molecules and ions between DNA and small molecules/ions are of great academic and pharmaceutical interest and importance. This is due to the interactions being essential for many fundamental processes in cells. For example, the formation of the secondary and higher-order structure of nucleotides, DNA repair, and genomic stability require the presence, meditation and or participation of metal ions such as magnesium. In addition, interactions between DNA and small molecules or ions can interfere with DNA replication, leading to DNA damage and cell death, which can accumulate and possibly lead to disea...Tue, 31 Jul 2018 06:09:53 GMTmswaney@uark.edu Biocompatible and Biodegradable Anionic Hydrogel development of biocompatible and biodegradable hydrogels for sustained delivery of biological therapeutic agents is important for many regenerative medicine applications. In general, hydrogels can be made from both natural and synthetic polymers. Natural polymers are often biocompatible and biodegradable, but are difficult to be chemically functionalized for sustained release and/or potentially immunogenic in the host body. Hydrogels made from synthetic polymers have several advantages including modifiable chemical properties, tunable mechanical properties, controllable porosity and transp...Wed, 25 Jul 2018 07:53:57 GMTmswaney@uark.edu 3D Pixel-Parallel Neuromorphic Architecture for Smart Sensors, 25 Jul 2018 07:50:10 GMTmswaney@uark.edu of PCU/UHMWPE Polymeric Blends and 3D Printing using Same American Physical Therapy Association reports that around 700,000 Americans undergo knee surgery due to meniscus injury every year. The meniscus has a vital role in functioning and protecting the knee by dispersing contact pressure and lowering the coefficient of friction. Joint stability, force transmission and lubrication are also provided by the meniscus. Currently, molded artificial meniscus implants have solid structures that impair the joints ability to permit its natural lubrication mechanism. A new fabrication method has been invented to create porosities that can retain lubricants...Wed, 25 Jul 2018 07:43:37 GMTmswaney@uark.edu and Fabrication of Custom Surfaces Topographies with Submicron Resolution topography affects many surface properties such as friction, wetting, and optical properties as well as chemical and biological compatibility of the surface. Some existing methods used to reduce friction and wear on metal surfaces often create limited texture geometries and provide poor dimensional control of the textures. Other approaches for creating dimples on surfaces leads to limited lateral resolutions. There are also other techniques for fabricating surface topographies, but most of the reported surface textures are 2D and the geometric parameters such as size, shape, and pitch ...Wed, 25 Jul 2018 07:40:26 GMTmswaney@uark.edu Warpage Reduction via Raised Free Bending Geometries, 25 Jul 2018 07:34:16 GMTmswaney@uark.edu Internet Scale Communication method of Machine Tools for Remote Operations communication methods do not provide a capability of operating machine tools over the Internet, which is necessary for developing a Cyber-Physical Manufacturing Cloud (CPMC). To address this issue, a new invention has been created to provide the first Internet scale communication method named Machine Tool Communication (MTComm) to both acquire monitoring data and exchange operational services between machine tools across the Internet. The method supports machine tool monitoring and their operations at both device and component level. MTComm is designed in such a way that various machi...Wed, 25 Jul 2018 06:25:47 GMTmswaney@uark.edu ligands containing multiple N-heterocyclic carbenes for transition metal catalysts, 04 Oct 2017 08:52:50 GMTmswaney@uark.edu Vivo Photoacoustic and Photothermal Nano-Theranostics of Biofilms, 27 Jul 2017 12:16:57 GMTmswaney@uark.edu Structured Materials Prepared from Selective Atomic Layer Deposition inSelf-Assembled, Composite Colloidal Films, 27 Jul 2017 12:11:06 GMTmswaney@uark.edu proton exchange membranes from nanoblending partially phosphonated graphene into high-temperature polymer matrix, 27 Jul 2017 12:08:25 GMTmswaney@uark.edu method for production of new TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyradical) celloulose membranes with low contact angles., 27 Jul 2017 12:06:28 GMTmswaney@uark.edu Sulfur Shuttle Behaviors in High-Energy Lithium-Sulfur Batteries, 27 Jul 2017 12:03:33 GMTmswaney@uark.edu Copper-Silica Core-Shell Nanoparticles, 20 Feb 2017 13:28:00 GMTmswaney@uark.edu and Devices for Performing Micro-assays, 09 Feb 2017 14:46:29 GMTmswaney@uark.edu Electrochemical Conversoin of Gases to More Commercially Useful Products, 03 Nov 2016 14:10:15 GMTmswaney@uark.edu Stirring for Lab-On-A-Chip Applications, 30 Sep 2016 14:22:47 GMTmswaney@uark.edu Deployable Soil Observation Topographical Differential Absorption LiDAR field deployable Soil Observation Topographic Differential Absorption LiDAR (SOTDiAL) is a compact remote sensing system that is utilized to determine soil properties remotely. The SOTDiAL is the first system of its kind, thereby promising future potential in the realm of remotely-sensed soil properties. Direct active and passive measurements made with the system are correlated with in situ soil suction (soil water potential) and index properties used to classify the soil (clay content, plasticity index). The SOTDiAL system is easily transportable to any site of interest and the occupation...Fri, 05 Aug 2016 07:13:18 GMTmswaney@uark.edu Hydrogel Employing Protein based Anti-Cancer, Vaccine and Immuno Therapy Drugs, 03 Aug 2016 13:20:11 GMTmswaney@uark.edu Photogrammetry System for 3-D Measurements of Triaxial Soil Samples triaxial test, a standard test for measuring soil shear strength, is critical to the design of foundations for all structures founded on soil, such as bridges or buildings. Currently, the cross-sectional area of a triaxial soil sample is assumed during testing, which may lead to strength measurement errors of up to 30%. The device overcomes this error by accurately determining the failure plane of the sample. Furthermore, the internal camera system allows for three-dimensional tracking of hundreds of individual targets on the surface of a sample. Targets are located to within 0.01-mm of th...Tue, 05 Jul 2016 07:59:46 GMTmswaney@uark.edu and Color-Tunable Red and Near Infrared (NIR) emitting Quantum Dots, 02 May 2016 14:48:41 GMTmswaney@uark.edu Point of Care Flow Cytometry Using Advanced Magnetohydrodynamic Fluid Transport, 26 Apr 2016 12:27:14 GMTmswaney@uark.edu Peptoids and Variations for Treating Alzheimer's Disease, 11 Mar 2016 07:16:11 GMTmswaney@uark.edu Fibroblast Growth Factor for Enhanced Wound Healing, 22 Dec 2015 09:17:22 GMTmswaney@uark.edu Green Flourescent Protein for Protein Manufacturing, 10 Dec 2015 09:25:01 GMTmswaney@uark.edu, Safe, Efficient Fast Process for Converting Biomass to Bio Fuels, 24 Sep 2015 12:34:30 GMTmswaney@uark.edu Membrane for Bio-Fuels, 24 Sep 2015 12:28:20 GMTmswaney@uark.edu of Low Molecular Weight Heparin as a Treatment for Heparin Overdose, 24 Sep 2015 12:02:31 GMTmswaney@uark.edu Device for the Improvement of Transcranial Magnetic and Transcranial Electrical Stimulation of the Brain, 06 Mar 2015 12:16:50 GMTmswaney@uark.edu Placement Analysis System (IPAS), 25 Jun 2014 08:37:07 GMTmswaney@uark.edu - Weight, Compact, Power Electronics Converter System, 05 Mar 2014 15:37:48 GMTmswaney@uark.edu Nanoparticle Building Blocks for Nanostructure Assembly and Applications of the Same The ability to produce specific arrangements of nanoscale matter to suit a specific application is an important goal of nanotechnology. New material properties may result from materials that result from the intentional design of their nanoscale structure. Researchers have recently developed a method of programming the assembly of nanoparticles using the self-assembly properties of DNA. Nanoparticles of different materials can be functionalized to accept DNA molecules at specific locations and with specific angles of attachment. The new method of programming the assembly of nanoparticles shows...Wed, 05 Mar 2014 15:37:43 GMTmswaney@uark.edu Purpose Layout Surveyor (GPLS), 05 Mar 2014 15:37:42 GMTmswaney@uark.edu for Modeling and Parameter Extraction of LDMOS Devices Under Cryogenic Conditions new model and parameter extraction methodology has been developed for LDMOS-based circuits that will accurately predict the response of LDMOS circuits even when subjected to the effects of extreme cold. The new model of LDMOS circuits can accurately predict the drain current of the LDMOS IC down to a temperature of 100 Kelvin. The model is accurate across the entire temperature range from 400 Kelvin down to below 100 Kelvin with a single set of model parameters. The invention also includes a new parameter extraction methodology that can be applied to any semiconductor device experiencing fre...Wed, 05 Mar 2014 15:37:41 GMTmswaney@uark.edu - A Behavioral Modeling Tool for Electronic Circuits and Systems Fundamentally, it is a necessity to simulate the operation of electronic circuits on a computer before committing designs to expensive fabrication and production manufacturing. In order to accomplish this task the simulator requires models of the electronic components. Many of these models are built in to the simulators or come in accompanying libraries for elementary electronic components such as transistors, diodes and passive elements. However, because design complexities have increased over the past decade, simulators can no longer handle the simulations required of an entire chip-le...Wed, 05 Mar 2014 15:37:37 GMTmswaney@uark.edu Nanowires Embedded Into a Macro Titanium Plate have developed a simple method of fabricating a tough coating of titanate nanowire bioscaffolds on a solid titanium substrate. As titanium is a biocompatible material, the new titanate nanowire surface opens the possibility of medical applications. The bottom of the nanowires are embedded into a macro-scale titanium plate, and then grow together at their top ends to produce a bioscaffold with interconnected macropores of 2-10 micrometers. The mesh mimics the natural extracellular matrix and exhibits good cellular compatibility, mechanical toughness, and structural robustness. The p...Wed, 05 Mar 2014 15:37:34 GMTmswaney@uark.edu Placement Survey System, 05 Mar 2014 15:37:31 GMTmswaney@uark.edu Name Tag Printing System career fair event management requires an accurate and streamlined means to quickly register participants. In the past, participants in career fairs and other such events used hand printed name tags. These tags were not consistent and were often illegible resulting in a frustrating experience for both the students and potential employers. To ensure prospective employers could manage their time with the students effectively a better system was required that would automatically print (name, major, level, student ID, and email address).The University of Arkansas has developed an automat...Wed, 05 Mar 2014 15:37:30 GMTmswaney@uark.edu Hydroisobenzofurans for Anticancer and/or Antibiotic Applications occurring products known as 2, 11 cyclized cembranoids have been shown to inhibit the growth of KB3 nasopharyngeal carcinoma. KB3 cells are the standard cancer cell line used to test for chemotherapy effectiveness. University scientists have developed a unique synthesis process to create bicyclic hydroisobenzofurans, the beneficial compounds that are naturally occurring in 2, 11 cyclized cembranoids. These specific compounds have not previously been investigated for anticancer or antibiotic applications. To date testing has shown inhibition of growth of 50% of the KB3 cancer test cel...Wed, 05 Mar 2014 15:37:29 GMTmswaney@uark.edu Anti-Fungal Agent, 05 Mar 2014 15:37:27 GMTmswaney@uark.edu Cooperative Education/Internship Mangaement System (OCMS) OCMS is a web-based email-scheduled automated workflow tool that uses web forms and an SQL server to manage data. The OCMS allows students to submit a request to be enrolled into the Cooperative Education Course. Students complete a short online form that provides a basic student profile including contact information, major, level, as well as some basic company information including company name, location and a company contact. Once this form has been completed a system generated email is sent to the employer contact. The employer is given information in the email that the student is in th...Wed, 05 Mar 2014 15:37:24 GMTmswaney@uark.edu Aids for Access to Advanced Software by Blind / Low Vision Users invention allows for the use of sophisticated software packages that employ Graphical User interfaces (GUIs) by blind/low vision (BLV) individuals. Current state of the art technology adapts the use of GUIs by eliminating the mouse based interface (MBI) through a combination of programmed keystrokes combined with audio information. The elimination of MBI, however, ultimately limits the BLV user to software packages that have been specially adapted for their use. A system has been developed that allows the BLV user to have refined control over MBI and permit true MBI events by using tactil...Wed, 05 Mar 2014 15:37:19 GMTmswaney@uark.edu Carbon Nanotubes for Biomedical Applications, 05 Mar 2014 15:37:18 GMTmswaney@uark.edu Legal e-Source Website the most successful charitable organization can struggle with unknown or complicated legal issues. Historically the information required to ensure compliance and to answer important ongoing questions was not available in a single, easy to use, online location. UA Legal e-Source will assist nonprofit organizations in both understanding of and compliance with state and federal laws giving nonprofits the tools necessary to achieve and maintain nonprofit status, freeing them to better focus on their nonprofit mission.The award winning UA Legal eSource web portal includes both open and registe...Wed, 05 Mar 2014 15:37:17 GMTmswaney@uark.edu Non-Linear Behavior of Analog Circuits is the name of a software code that models the behavior of non-linear analog electrical circuits. As the complexity and performance criteria of analog and mixed-signal systems are steadily increased, behavioral modeling methods are commonly used by design engineers for rapid higher-level simulations. Behavioral models have the potential of faster simulation speed without loss of accuracy for given performance specifications. ASCEND has the unique ability to model the non-linear behavior of circuits. Non-linear dynamic effects can be included in ASCEND models, greatly improving the simul...Wed, 05 Mar 2014 15:37:16 GMTmswaney@uark.edu