Suggested Topics within your search.
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4081
Movement of Overlying Strata and Mechanical Responses of Shallow Buried Gas Pipelines in Coal Mining Areas
Published 2025-01-01“…Distributed optical fiber strain sensors and thin-film pressure sensors were used to simultaneously measure the stress variations in the pipeline and changes in the soil pressure surrounding it. …”
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4082
The manual of photography /
Published 2009Table of Contents: “…Introduction to the imaging process -- Light theory -- Photographic light sources -- The human visual system -- Introduction to colour science -- Photographic and geometrical optics -- Images and image formation -- Sensitometry -- Image sensors -- Camera lenses -- Photographic camera systems -- Exposure and image control -- Image formation and the photographic process -- Digital cameras and scanners -- Displays -- Digital printing and materials -- Digital image file formats -- Image storage media and archiving -- Introduction to image quality and system performance -- Speed and sensitivity -- Tone reproduction -- Photographic colour reproduction -- Digital colour reproduction -- Noise, sharpness, resolution and information -- Digital image workflow -- Colour management systems -- Spatial image processing -- Digital image processing in the frequency domain -- Image compression.…”
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4083
Design of robust constant beamwidth beamformer with maximal sparsity
Published 2015-09-01“…To reduce the complexity of broadband array systems,an optimization model was built based on the analysis of the sparsity of the broadband array.The objective function was the convex combination of sensor and TDL sparsity with the constraint of constant beamwidth.By re-weighting the objective function,the sparsity of the array weights in-creased and converged to the maximal value.The equivalence between the norm constraint on array weights and the spar-sity of TDL was proved.Simulation results demonstrate that to obtain the same performance,the number of sensors and TDL of the proposed beamformer needed is decreased which reduces the system complexity,showing that the beam-former designed has great practical value.…”
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4084
Environmental Applications of Sorbents, High-Flux Membranes of Carbon-Based Nanomaterials
Published 2022-01-01“…There are several environmental applications for carbon-based nanoparticles: sorbents, membranes, antimicrobial agents, and sensors. According to this review, carbon-based nanomaterials have a variety of environmental benefits. …”
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4085
Research of proactive complex event processing method
Published 2016-09-01“…Based on the preliminary analysis results of the indeterminate event stream that generated by the sensors and control purpose equipment of CPS,the adaptive dynamic Bayesian network and parallel Markov decision process model were used to support the proactive complex event processing.In order to resolve the vast state space issue of Markov decision process for large CPS,states partition and reward decomposition methods were proposed to parallel the decision making process.The experimental result based on the simulation of traffic network shows that proposed method can process event stream effectively and has favorable scalability.…”
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4086
Computation of New Degree-Based Topological Indices of Graphene
Published 2016-01-01“…Graphene is one of the most promising nanomaterials because of its unique combination of superb properties, which opens a way for its exploitation in a wide spectrum of applications ranging from electronics to optics, sensors, and biodevices. Inspired by recent work on Graphene of computing topological indices, here we propose new topological indices, namely, Arithmetic-Geometric index (AG1 index), SK index, SK1 index, and SK2 index of a molecular graph G and obtain the explicit formulae of these indices for Graphene.…”
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4087
Non-Hermitian topology and entanglement in an optomechanical superlattice
Published 2025-01-01“…The interplay between topology and dissipation can give rise to a wealth of new phenomena and pave the way for novel topological lasers, sensors, and other quantum devices. Along these lines, we propose here an optomechanical setup in which the concomitant presence of a spatially modulated external drive and dissipation gives rise to a topologically nontrivial state for mechanical and optical excitations. …”
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4088
Design and implementation of the motion control system of the mobile robot based on PID
Published 2016-10-01“…A kind of motion control system of the autonomous mobile robot was introduced,and a PID closed-loop control method was proposed that controlling the robot moving along the expected direction and speed effectively through establishing the kinematics model of the autonomous mobile robot.In addition,the modular software program and the hardware system were developed whose main components were the STC12C5A60S2 microprocessor,the MC33886 motor driver chip and hall sensors.Finally,experiments proves the control method and the system effective and stable.…”
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4089
Research on secure DPC localization algorithm of WSN
Published 2011-01-01“…In resource-constrained sensor networks,how to locate the sensor’s coordinates securely and effectively is one of the most challenging problems.A lot of algorithms of the security localization were analyzed,and a distributed RSSI-based DPC（distance and position consistent） security location algorithm was brought forth.The algorithm can de-tect and filter out the false nodes that are generated by malicious attacks applying the consistency of measure and com-puting;meanwhile all the nodes are involved in the activation without a central node.The performance of the algorithm is studied,and the experimental results show that DPC still has very high efficiency and good robustness in noisy conditions with a number of false nodes.…”
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4090
Lightweight authentication protocol for security vehicle network of railway freight train
Published 2018-11-01“…With the development of railway transportation,it has put forward higher requirements for the safety of freight train.The present ground vehicle safety monitoring system,due to technical limitations,can’t meet the security requirement for real time information report of the train.Vehicular sensor can collect real-time vehicle information,to guarantee the safety of the train.Vehicle network is the basic of the communications between vehicular sensors.The basic of the security vehicle network for the railway freight train is authentication.Lightweight authentication protocol for the security vehicle network was proposed.The protocol can authenticate the network nodes without CA.…”
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4091
Feature Comparison in Structural Health Monitoring of a Vehicle Crane
Published 2008-01-01“…Also transmissibilities between sensors were estimated. Damage was introduced with additional masses at different locations of the structure. …”
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4092
Measuring and Calculative Complex for Registration of Quasi-Static and Dynamic Processes of Electromagnetic Irradiation
Published 2007-10-01“…So, to overcome disadvantages of former control units a new one has been developed applying Hall’s sensors. The device developed allows effectively register of the inductive component of the electromagnetic irradiation in wide range of temperature for many shot-time processes.…”
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4093
Research of 5G NR RedCap technology
Published 2022-03-01“…Faced to industrial wireless sensors, video surveillance, wearable devices, RedCap UE (reduced-capability user equipment) was proposed in 3GPP Release 17 (Rel-17), which could greatly reduce the costs of UE under the premise of satisfying the requirements of these use cases.Firstly, the standardization progress of 5G RedCap was introduced.Then, typical use cases of 5G RedCap technology were analyzed.After that, deep research was carried on the complexity reduction characteristics as well as the related gains brought by RedCap technology from two aspects of UE optimization and network performance improvement.Finally, the development potential and the evolution direction in the future were summarized.…”
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4094
Le crowdsourcing urbain comme nouvelle forme d’engagement citoyen
Published 2022-02-01“…Beyond a real operational interest for the public space managers, these mechanisms of anomalies feedbacked by citizen "sensors" poses many questions to the administrations (organizational, political, ethical). …”
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4095
Adaptive threshold scheme for fault detection for positive switched systems with parametric uncertainty
Published 2025-01-01“…This paper addresses the challenge of designing a fault detection observer for actuators and sensors in a particular class of positive switched systems, using the average dwell time method. …”
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4096
IFC and Monitoring Database System Based on Graph Data Models
Published 2021-01-01“…The presented IFC and sensor graph data models are structurally flexible and scalable to meet the challenges of smart cities and big data.…”
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4097
Calibrating Time Domain Reflectometers for Soil Moisture Measurements in Sandy Soils
Published 2017-05-01“… The UF/IFAS Plant Science Research and Education Unit (PSREU) in Citra, FL developed an in-laboratory calibration protocol for CS616 TDR sensors for sandy soils, which are typical of north central Florida. …”
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4098
Calibrating Time Domain Reflectometers for Soil Moisture Measurements in Sandy Soils
Published 2017-05-01“… The UF/IFAS Plant Science Research and Education Unit (PSREU) in Citra, FL developed an in-laboratory calibration protocol for CS616 TDR sensors for sandy soils, which are typical of north central Florida. …”
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4099
“Clickable” Nanoparticles for Targeted Imaging
Published 2006-04-01“…Nanoparticle click chemistry will be useful for other nanomaterials, design of novel sensors, and drug delivery vehicles.…”
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4100
Advancing civil infrastructure assessment through robotic fleets
Published 2024-01-01“…Modern civil engineering structures, instrumented with Internet-of-Things-enabled smart sensors and actuators, are considered cyber-physical systems that integrate physical processes with computational and communication elements. …”
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