Self-Healing Cellular Automata to Correct Soft Errors in Defective Embedded Program Memories

Static Random Access Memory (SRAM) cells in ultra-low power Integrated Circuits (ICs) based on nanoscale Complementary Metal Oxide Semiconductor (CMOS) devices are likely to be the most vulnerable to large-scale soft errors. Conventional error correction circuits may not be able to handle the distributed nature of such errors and are susceptible to soft errors themselves. In this thesis, a distributed error correction circuit called Self-Healing Cellular Automata (SHCA) that can repair itself is presented. A possible way to deploy a SHCA in a system of SRAM-based embedded program memories (ePM) for one type of chip multi-processors is also discussed. The SHCA is compared with conventional error correction approaches and its strengths and limitations are analyzed

A Review of Bayesian Methods in Electronic Design Automation

The utilization of Bayesian methods has been widely acknowledged as a viable solution for tackling various challenges in electronic integrated circuit (IC) design under stochastic process variation, including circuit performance modeling, yield/failure rate estimation, and circuit optimization. As the post-Moore era brings about new technologies (such as silicon photonics and quantum circuits), many of the associated issues there are similar to those encountered in electronic IC design and can be addressed using Bayesian methods. Motivated by this observation, we present a comprehensive review of Bayesian methods in electronic design automation (EDA). By doing so, we hope to equip researchers and designers with the ability to apply Bayesian methods in solving stochastic problems in electronic circuits and beyond.Comment: 24 pages, a draft version. We welcome comments and feedback, which can be sent to [email protected]

Proceedings of the 2nd Annual Conference on NASA/University Advanced Space Design Program

Topics discussed include: lunar transportation system, Mars rover, lunar fiberglass production, geosynchronous space stations, regenerative system for growing plants, lunar mining devices, lunar oxygen transporation system, mobile remote manipulator system, Mars exploration, launch/landing facility for a lunar base, and multi-megawatt nuclear power system

Recent progress and perspectives of space electric propulsion systems based on smart nanomaterials

Miniaturized spacecraft built from advanced nanomaterials are poised for unmanned space exploration. In this review, the authors examine the integration of nanotechnology in electric propulsion systems and propose the concept of self-healing and adaptive thrusters

Reconfigurable middleware architectures for large scale sensor networks

Wireless sensor networks, in an effort to be energy efficient, typically lack the high-level abstractions of advanced programming languages. Though strong, the dichotomy between these two paradigms can be overcome. The SENSIX software framework, described in this dissertation, uniquely integrates constraint-dominated wireless sensor networks with the flexibility of object-oriented programming models, without violating the principles of either. Though these two computing paradigms are contradictory in many ways, SENSIX bridges them to yield a dynamic middleware abstraction unifying low-level resource-aware task reconfiguration and high-level object recomposition. Through the layered approach of SENSIX, the software developer creates a domain-specific sensing architecture by defining a customized task specification and utilizing object inheritance. In addition, SENSIX performs better at large scales (on the order of 1000 nodes or more) than other sensor network middleware which do not include such unified facilities for vertical integration

A critical review on sustainable biochar system through gasification: energy and environmental applications

This review lays great emphasis on production and characteristics of biochar through gasification. Specifically, the physicochemical properties and yield of biochar through the diverse gasification conditions associated with various types of biomass were extensively evaluated. In addition, potential application scenarios of biochar through gasification were explored and their environmental implications were discussed. To qualitatively evaluate biochar sustainability through the gasification process, all gasification products (i.e., syngas and biochar) were evaluated via life cycle assessment (LCA). A concept of balancing syngas and biochar production for an economically and environmentally feasible gasification system was proposed and relevant challenges and solutions were suggested in this review

A comparative study between dry needling verses shockwave therapy on peroneal trigger points in patients with a history of chronic inversion ankle sprain

Abstract: Purpose: The aim of this study was to explore the comparative effects of two different soft tissue approaches in the treatment of active peroneal trigger points. The data from the two different groups was analyzed to establish which soft tissue approach was the most effective in the treatment of active peroneal trigger points in a patient with a history of a chronic inversion ankle sprain. Method: This clinical trial was a quantitative, randomized study that was comparative in nature, of which 30 male and female participants between the ages 18 to 35 years o ld were recruited. This study used the stratification method of randomization according to age and gender. Upon meeting the criteria, participants were divided as they were recruited into two smaller groups of fifteen. Group A received dry needling while group B received shockwave therapy to the most active trigger point in the peroneal muscle group on the side of the chronic inversion ankle sprain. Treatment sessions were carried out over three weeks on alternate days with treatment proceeding on days 1 through 6. Perceived pain was measured using the NPRS, tenderness of the most active peroneal trigger point was measured using the pressure algometer and ankle range of motion was measured using the goniometer on visits 1, 4 and 7. Results: The analysis of Numerical Pain Rating Scale revealed a statistical significance. This indicates that both groups have significance clinically, as both groups were effective in decreasing perceived pain. As was the case with the analysis of the pain pressure algometer readings, both groups revealed a statistical significance, indicating that both groups have significance clinically, as both groups were effective in decreasing pain threshold. However, neither group showed a superior result in reducing perceived pain and pain threshold. As for range of motion, dry needling proved to have a clinical significance as group A yielded the superior results, showing an increase in ankle dorsiflexion, plantarflexion and inversion. Contrary, shockwave therapy proved to be clinically insignificant as there was only an increase in ankle inversion noted. Conclusion: To conclude, both treatment protocols were effective in reducing pain of the active peroneal trigger point. However, dry needling showed to be more effective than shockwave therapy in improving the overall range of motion of the ankle of participants who have a history of a chronic inversion ankle sprain.M.Tech. (Chiropractic

Computational Modelling of Concrete and Concrete Structures

Computational Modelling of Concrete and Concrete Structures contains the contributions to the EURO-C 2022 conference (Vienna, Austria, 23-26 May 2022). The papers review and discuss research advancements and assess the applicability and robustness of methods and models for the analysis and design of concrete, fibre-reinforced and prestressed concrete structures, as well as masonry structures. Recent developments include methods of machine learning, novel discretisation methods, probabilistic models, and consideration of a growing number of micro-structural aspects in multi-scale and multi-physics settings. In addition, trends towards the material scale with new fibres and 3D printable concretes, and life-cycle oriented models for ageing and durability of existing and new concrete infrastructure are clearly visible. Overall computational robustness of numerical predictions and mathematical rigour have further increased, accompanied by careful model validation based on respective experimental programmes. The book will serve as an important reference for both academics and professionals, stimulating new research directions in the field of computational modelling of concrete and its application to the analysis of concrete structures. EURO-C 2022 is the eighth edition of the EURO-C conference series after Innsbruck 1994, Bad Gastein 1998, St. Johann im Pongau 2003, Mayrhofen 2006, Schladming 2010, St. Anton am Arlberg 2014, and Bad Hofgastein 2018. The overarching focus of the conferences is on computational methods and numerical models for the analysis of concrete and concrete structures

Design Of N Bit Adder And Subtractive Using Quantum Dot Cellular Automata

Relatively easy to fix reasoning as well as quantum dot cellular robot (QCA) with each other can be taken into consideration as one of the most encouraging innovations for future generation computer systems. As CMOS circuits are coming close to restrictions in minimizing area as well as power dissipation, relatively easy to fix reasoning and also QCA modern technology have prospective to change CMOS. Moreover, restricted research is done on reversible sequential circuits with QCA implementation. This paper targets style as well as application of a standard sequential element, a relatively easy to fix dual side set off D flip flop, utilizing QCA. The logical capability, computational as well as power evaluation of the recommended circuit has actually been checked out in this work. This is one of such first attempts to make, analyze as well as carry out relatively easy to fix consecutive element using QCA. This layout will certainly help with the perception of complicated relatively easy to fix sequential circuits in the location of QCA circuits