Pixel-aligned Implicit Function (PIFu) effectively captures subtle variations in body shape within a low-dimensional space through extensive training with human 3D scans, its application to live animals presents formi...
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Single photon avalanche diodes (SPADs) fabricated in PureB silicon technology offer exceptional versatility, functioning both as light emitting diodes and detectors sensitive down to a single photon. In PureB technolo...
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We demonstrate semipolar (20-21) micro-LED-based high-bandwidth WLEDs utilizing perovskite QDs and organic emitters in color-conversion films. The WLEDs exhibit a bandwidth in excess of 1 GHz and a CCT of 6141 K, maki...
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Ultrafast 3D imaging is indispensable for visualizing complex and dynamic biological *** scanning-based techniques necessitate an inherent trade-off between acquisition speed and space-bandwidth product(SBP).Emerging ...
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Ultrafast 3D imaging is indispensable for visualizing complex and dynamic biological *** scanning-based techniques necessitate an inherent trade-off between acquisition speed and space-bandwidth product(SBP).Emerging single-shot 3D wide-field techniques offer a promising alternative but are bottlenecked by the synchronous readout constraints of conventional CMOS systems,thus restricting data throughput to maintain high SBP at limited frame *** address this,we introduce EventLFM,a straightforward and cost-effective system that overcomes these challenges by integrating an event camera with Fourier light field microscopy(LFM),a state-of-theart single-shot 3D wide-field imaging *** event camera operates on a novel asynchronous readout architecture,thereby bypassing the frame rate limitations inherent to conventional CMOS *** further develop a simple and robust event-driven LFM reconstruction algorithm that can reliably reconstruct 3D dynamics from the unique spatiotemporal measurements captured by *** results demonstrate that EventLFM can robustly reconstruct fast-moving and rapidly blinking 3D fluorescent samples at kHz frame ***,we highlight EventLFM’s capability for imaging of blinking neuronal signals in scattering mouse brain tissues and 3D tracking of GFP-labeled neurons in freely moving *** believe that the combined ultrafast speed and large 3D SBP offered by EventLFM may open up new possibilities across many biomedical applications.
Noninvasive estimation of blood pressure is important in preventing and managing cardiovascular disease. The cuffless technique has captured a lot of attention in recent years to unobtrusively provide continuous monit...
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This paper studies highly scaled, multichannel MoS2 transistors (MCTs) through both experiments and simulations. A low-temperature MoS2 synthesis enables a novel integration scheme for MCTs on 8" wafers with self...
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WSNs are applied in many disciplines where certain conditions require the ability to adapt to network sink mobility and changes in the dynamics of the area coverage. To meet these needs, it is necessary to develop int...
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This paper analyzes the oligopolistic equilibria of multiple price-maker agents in performance-based regulation(PBR)*** these markets,there are price-maker agents representing some frequency regulation(FR)providers an...
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This paper analyzes the oligopolistic equilibria of multiple price-maker agents in performance-based regulation(PBR)*** these markets,there are price-maker agents representing some frequency regulation(FR)providers and a number of independent price-taker FR providers.A model of equilibrium problem with equilibrium constraints(EPECs)is employed in this paper to study the equilibria of a PBR market in the presence of price-maker agents and price-taker FR *** to the incorporation of the FR providers’dynamics,the proposed model is reformulated as a mixed-integer linear programming(MILP)problem over innovative mathematical *** optimal equilibrium point is also selected for the market,where none of the agents is the unique deviator and the dynamic performance of power system is improved *** effectiveness of the proposed optimal equilibrium point is evaluated by comparing the outputs with the conventional optimal dispatches of the FR providers.
In this paper, we consider a discrete-time information-update system, where a service provider can proactively retrieve information from the information source to update its data and users query the data at the servic...
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ISBN:
(数字)9781665497268
ISBN:
(纸本)9781665497268
In this paper, we consider a discrete-time information-update system, where a service provider can proactively retrieve information from the information source to update its data and users query the data at the service provider. One example is crowdsensing-based applications. In order to keep users satisfied, the application desires to provide users with fresh data, where the freshness is measured by the Age-of-Information (AoI). However, maintaining fresh data requires the application to update its database frequently, which incurs an update cost (e.g., incentive payment). Hence, there exists a natural tradeoff between the AoI and the update cost at the service provider who needs to make update decisions. To capture this tradeoff, we formulate an optimization problem with the objective of minimizing the total cost, which is the sum of the staleness cost (which is a function of the AoI) and the update cost. Then, we provide two useful guidelines for the design of efficient update policies. Following these guidelines and assuming that the aggregated request arrival process is Bernoulli, we prove that there exists a threshold-based policy that is optimal among all online policies and thus focus on the class of threshold-based policies. Furthermore, we derive the closed-form formula for computing the long-term average cost under any threshold-based policy and obtain the optimal threshold. Finally, we perform extensive simulations using both synthetic data and real traces to verify our theoretical results and demonstrate the superior performance of the optimal threshold-based policy compared with several baseline policies.
As Programmable Logic Controllers (PLCs) become more integrated into complex industrial systems and networks, their software components face increased security vulnerabilities. Fuzz testing, which uses unexpected inpu...
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ISBN:
(数字)9798331520960
ISBN:
(纸本)9798331520977
As Programmable Logic Controllers (PLCs) become more integrated into complex industrial systems and networks, their software components face increased security vulnerabilities. Fuzz testing, which uses unexpected inputs to find vulnerabilities, has been used to enhance PLC security but is primarily focused on communication protocols, often overlooking control logic. This paper presents a fuzzing framework for PLC control logic programs. The framework is designed to handle control logic’s unique execution process, which may involve translating PLC languages into general-purpose languages. It generates structurally valid test cases and is platform-independent. We implement our prototype around the OpenPLC environment and expand our experiments to a Wago PLC image to evaluate the feasibility of our method on real-world devices. Our approach exhibits strong performance in terms of code coverage, test case pass rate, and crash detection, while ensuring high time efficiency.
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