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Twenty four units of 48V DC LED luminary are retrofitted at a 120m2 energy harvesting laboratory located at level five, CleanTech One building for energy efficiency applied research. DC renewable is connected to the building DC grid to power 125 lumen per watt DC LED luminaries system with real time sub-meters' logging, and communicating via Power over Ethernet (PoE) based intelligent control technology...
Hyperperfusion detected on arterial spin labeling (ASL) images acquired after acute stroke onset has been shown to correlate with development of subsequent intracerebral hemorrhage. We present in this study a quantitative hyperperfusion detection model that can provide an objective decision support for the interpretation of ASL cerebral blood flow (CBF) maps and rapidly delineate hyperperfusion regions...
This paper presents an on-demand, multi-step synthesis scheme that is capable of forming semi-permeable microcapsules on an integrated microfluidic chip. Three-layered PDMS devices with pneumatically actuated diaphragm-valves constructed on specially designed fluidicchannels are utilized to realize the encapsulation process. In the prototype demonstration, Na-alginate droplets are metered, trapped,...
We have successfully demonstrated the fabrication of piezoelectric PDMS films utilizing casting, stacking, and micro plasma discharge processes. To realize electromechanical sensitivity, PDMS structures with micrometer-sized cells are implanted with positive and negative charges on the opposite internal surfaces of each cell, which behaves just like a dipole. In the prototype demonstration, multilayer...
Heavy-ion test results utilizing novel test methodologies of non-volatile antifuse-based FPGAs are presented and discussed. In particular, the programmable architectures in the RTAX-S FPGA-family including the I/O structures, and the FPGA core were tested and their cross-sections measured. Previously available SET mitigation solution based on SET filtering was implemented on the RTAX-S test designs...
This paper presents a systematic method to detect feature points on the silhouette of human body from front and side images. Based on the correspondence between the coordinates and the eight numbering system of chain codes, the codes that depicted at 90 degree angle were taken as corner points. The system then connects the other associated points horizontally and vertically. Thus, the human landmark...
Atrial fibrillation is caused by some excited cardiac myocardium re-stimulated by the recurrent impulse that made the left atrium contraction irregularly. The changes of cardiac patterns could be recorded by the CT scan of the multi-slices and multi-frame technology. The abnormal rhythmic wall motion can be analyzed between the systolic of atrium and diastolic of atrium. This study has developed a...
Heavy-ion and proton test results utilizing novel test methodologies of reprogrammable and non-volatile flash-based FPGAs are presented and discussed. The 5 programmable architectures in the A3P FPGA-family were tested: I/O structures, FPGA Core, PLL, FROM and SRAM. Furthermore, the circuitry used for the programming and the erase of the A3P product was exercised in proton beams. The data shows no...
Heavy-ion test results utilizing novel test methodologies of reprogrammable and non-volatile flash-based FPGAs are presented and discussed. The 5 programmable architectures in the A3P FPGA-family were tested: I/O structures, FPGA Core, PLL, FROM and SRAM.
The function of left atrium can be accurately estimated non-invasively using 4D CT cardiac images. A self-developed image analysis program will first reconstruct 3D volume of heart. Then, one may re-sample images for accurately deleting the 4 pulmonary veins from the atrium and set the boundary. With the prior processed information, the active contour methodology and seed regional growth methodology...
High performance, high density, radiation hardened Field Programmable Gate Arrays (FPGAs) are in great demand for military and space applications to reduce design cost and cycle time. BAE Systems has implemented radiation hardened 150nm bulk CMOS process technology in its foundry located in Manassas, VA to support such advanced product needs. BAE Systems and Actel Corporation are collaborating to...
Wind-induced conductor vibrations are Aeolian vibration, galloping and sub-span oscillation. Aeolian vibration is caused by an alternating wind force, which arises from a pressure difference associated with a regular formation of vortices behind a conductor. Galloping is a low frequency, large amplitude, wind-induced vibration of both single and bundle overhead conductors, with a single or a few loops...
The radiation characteristic of the floating-gate switch in a 0.22 mum flash-based FPGA is investigated by measuring the threshold voltage after each stage of X-ray irradiation. The focus is on the applied bias on the floating-gate device during irradiation. A two-parameter, semi-physical model is used to fit the experimental results. For an erase or write state with a particular irradiation-bias,...
A self-developed program that analyzed the load- independent LV pressure-volume (P-V) data from acute myocardial infarcted (AMI) patients to examine the process of chamber remodeling was reported. The extracted pressure-volume relationship at first week was compared to the 12 week data after PTCA procedure. The analysis program extracted static and dynamic parameters from ventricular pressure and...
We design and fabricate polarization-dependent components (PDCs) based on all-dielectric, fully planarized, multilayer microstructures of 150 nm period by using low-loss materials. Quarter-wave and half-wave phase plates at 405 nm are presented. Multifunction integrated diffractive PDCs are discussed
Single event effect vulnerabilities of currently available commercial-off-the-shelf (COTS) field programmable gate arrays (FPGAs) have been measured. They are compared with those observed in older COTS devices as well as with some radiation hardened devices
Recent advances in wireless technology have increased the number of mobile device users and given pace to the rapid development and deployment of e-commerce to the mobile user. This new type of e-commerce, conducting transactions via mobile terminals, is called mobile commerce (m-commerce). Due to its inherent characteristics such as ubiquity, personalization, flexibility, and dissemination, mobile...
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