- Parallel Computing and Optimization Techniques
- Embedded Systems Design Techniques
- Interconnection Networks and Systems
- Distributed and Parallel Computing Systems
- Photonic and Optical Devices
- Real-Time Systems Scheduling
- Advanced Data Storage Technologies
- CCD and CMOS Imaging Sensors
- Semiconductor Lasers and Optical Devices
- Laser Design and Applications
- Distributed systems and fault tolerance
- Neural Networks and Applications
- Advanced Memory and Neural Computing
- VLSI and Analog Circuit Testing
- Fungal and yeast genetics research
- Geophysics and Sensor Technology
- Cloud Computing and Resource Management
- Muscle activation and electromyography studies
- EEG and Brain-Computer Interfaces
- Stroke Rehabilitation and Recovery
- Laser-Matter Interactions and Applications
- Glioma Diagnosis and Treatment
- Photochemistry and Electron Transfer Studies
- VLSI and FPGA Design Techniques
- Molecular Junctions and Nanostructures
University of Arkansas at Fayetteville
2015-2025
University College London
1977-2024
Perth Children's Hospital
2023
Princess Margaret Hospital for Children
2023
Thomas Jefferson University
2015-2022
Neurological Surgery
2018-2022
University of East Anglia
1986-2020
Paderborn University
2019
Bellingham Technical College
2018
University of Georgia
2000-2017
In theories which describe the response of freely rotating molecules to externally imposed stimuli it is frequently necessary average rotationally a product direction cosines relating space-fixed and molecular coordinate frames. this paper systematic method for deriving required tensor averages presented, results up seventh rank are explicitly shown. Where appropriate both reducible irreducible expressions given their equivalence demonstrated. Finally, some useful identities rotational...
Configurable computing offers the potential of producing powerful new systems. Will current research overcome dearth commercial applicability to make such systems a reality? Unfortunately, no system date has yet proven attractive or competitive enough establish presence. We believe that ample opportunity exists for work in broad range areas. In particular, configurable community should focus on refining emerging architectures, more effective software/hardware APIs, better tools application...
Emerging hybrid chips containing cpu and FPGA components are an exciting new development promising commercial off-the-shelf economies of scale, while also supporting hardware customization.
The marine slug Elysia chlorotica (Gould) forms an intracellular symbiosis with photosynthetically active chloroplasts from the chromophytic alga Vaucheria litorea (C. Agardh). This symbiotic association was characterized over a period of 8 months during which E. deprived V. but provided light and CO2. fine structure remained intact in even after starvation as revealed by electron microscopy. Southern blot analysis total DNA indicated that algal genes, i.e., rbcL, rbcS, psaB, psbA, 16S rRNA...
Even though plant cells are highly plastic, plants only develop hyperplasia under very specific abiotic and biotic stresses, such as when exposed to pathogens like Beet curly top virus (BCTV). The C4 protein of BCTV is sufficient induce alter Arabidopsis development. It was previously shown that interacts with two Shaggy-like kinases, AtSK21 23, which negative regulators brassinosteroid (BR) hormone signaling. Here we show the five additional AtSK family members. Bikinin, a competitive...
Data-driven physics models offer the potential for substantially increasing sample rate applications in high-rate cyberphys- ical systems, such as model predictive control, structural health monitoring, and online smart sensing. Making this practical re- quires new deployment tools that search networks with maximum accuracy while meeting both real-time performance resource constraints. Tools generate customized architectures machine learning models, HLS4ML FINN, require manual control over...
Ustilago maydis, the causal agent of corn smut disease, displays dimorphic growth in which it alternates between a budding haploid saprophyte and filamentous dikaryotic pathogen. We are interested identifying genetic determinants pathogenicity U. maydis. To do this we have taken forward approach. Earlier, showed that adenylate cyclase (uac1) mutants display constitutively phenotype. Mutagenesis uac1 disruption strain allowed isolation large number suppressor mutants. These named ubc, for...
This paper introduces hthreads, a unifying programming model for specifying application threads running within hybrid computer processing unit (CPU)/field-programmable gate-array (FPGA) system. Presently accepted CPU/FPGA computational models-and access to these models via high level languages-focus on language extensions increase accessibility and portability. However, this argues that new high-level built common software abstractions better address goals. The hthreads system, in general,...
Recent architectural advancements in reconfigurable devices have exposed the ability to support massive parallelism inside of small, low-cost, embedded devices. The these has promised bring an unprecedented level performance systems domain. However, complexity programming is daunting - too for average programmer. This paper presents Hthreads. Hthreads a computational architecture which aims bridge gap between regular programmers and powerful but complex accomplishes this goal using three...
A description is given of PAWS (parallel assessment window system), a set tools that provides an interactive user-friendly environment for analysis existing, prototype, and conceptual machine architectures running common application. consists application tool, architectural characterization performance graphical display tool. The tool facility evaluating the level degree application's parallelism. architecture allows users to create, store, retrieve descriptions machines in database. This...
Quantum computing-specifically Shor's algorithm [1]-presents an existential threat to some standard cryptographic algorithms. In preparation, post-quantum cryptography (PQC) algorithms have been in development and are nearing mathematical cryptanalytic maturity. Standardization efforts through the National Institute of Standards Technology (NIST) PQC standardization process chosen one PKE/KEM (i.e., CRYSTALS-Kyber) three digital signature CRYSTALS-Dilithium, Falcon, SPHINCS+). CRYSTALS-Kyber...
Designers of embedded and real-time systems are continually challenged to meet tighter system requirements at better price-performance ratios. Best-practice methods have long promoted the use commercial-off-the-shelf components reduce design costs time market, but creating COTS that reusable in a wide range applications remains difficult. In part, challenge lies satisfying contradictory forces generalization specialization. Systems designers all too familiar with tension these opposing cause...
Ustilago maydis is a dimorphic basidiomycete and the causal agent of corn smut disease. It serves as genetic model for understanding dimorphism, pathogenicity, mating response in filamentous fungi. Previous studies indicated importance regulated cAMP-dependent protein kinase A (PKA) growth pathogenicity U. maydis. The roles two phosphatases that potentially act antagonistically to PKA were assessed. reverse genetics approach mutate catalytic subunits calcineurin (CN, phosphatase [PP]2B) PP2A...
Field-Programmable Gate Arrays (FPGAs) are becoming important components within commercially available cloud computing systems. However, the FPGAs not yet sufficiently abstracted existing software ecosystems. Contrary to how applications transparently scheduled across general purpose processors, processes need explicitly provision and control communications with hardware circuits FPGAs. In this paper, we introduce a novel virtualization framework called FPGAVirt that leverages Virtio...
In this paper, we present hthreads, a unifying programming model for specifying application threads running within hybrid CPU/FPGA system. Threads are specified from single pthreads multithreaded program and compiled to run on the CPU or synthesized FPGA. The hthreads system, in general, is unique reconfigurable computing community as it abstracts components into unified custom threaded multiprocessor architecture platform. To support abstraction of component boundary, have created hardware...
This paper describes the hardware/software co-design of a multithreaded RTOS kernel on new Xilinx Virtex II Pro FPGA. Our is an integral part our hybrid thread programming model being developed for systems which are comprised both software resident and hardware concurrently executing threads. Additionally, we provide interrupt semantics by migrating uncontrollable asynchronous invocations into controllable, priority based scheduling requests. Performance tests verify codesign approach...
Modern FPGA devices, which include (multiple) processor core(s) as diffused IP on the silicon die, provide an excellent platform for developing custom multiprocessor systems-on-programmable chip (MPSoPC) architectures. As researchers are investigating new methods migrating portions of applications into hardware circuits, it is also critical to develop run-time service frameworks support these capabilities. Hthreads (HybridThreads) a multithreaded RTOS kernel hybrid FPGA/CPU systems designed...
Ustilago maydis, causal agent of corn smut disease, is a dimorphic fungus alternating between saprobic budding haploid and an obligate pathogenic filamentous dikaryon. Maize responds to U. maydis colonization by producing tumorous structures, only within these does the sporulate, melanized sexual teliospores. Previously we identified Ust1, APSES (Asm1p, Phd1p, Sok2p, Efg1p, StuAp) transcription factor, whose deletion led growth production highly pigmented teliospore-like structures in...