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The calibration of the binocular camera system is a method used to obtain the parameters of the mathematical model of the binocular system. However, the camera calibration methods commonly employed are only applicable to small field-of-view conditions and cannot achieve camera calibration in long distances and large field-of-view conditions.
Structural health monitoring (SHM), as a kind of emerging interdiscipline, is defined as follows: different kinds of sensors are put in a structure to make the structure have the ability to sense its external environmental loads and respond to these loads, in order to enhance its performance and survivability [].Now, SHM becomes more and more important in people''s …
För lägenheter med relativt små utrymmen är standardbelastningen relativt liten, med den maximala belastningen en 1-hästkrafters luftkonditionering, följt av några lågeffektsbelastningar …
Monteringsmetod: Väggmontage eller annan plan yta: Isolationsklass: IP67: Laddstandard: Mode 3: Standarder: IEC 61851-1: IEC 62196-2: Skydd mot felstömmar: DC skydd integrerad i boxen, …
Method ID: AfN-METHOD-NV-05 Status: Approved 9 December 2020 Accuracy: Very High (95%) or High (90%) Scale: Project or Property Location use: Victoria, Australia Summary: The Kilter Rural Vegetation Assessment Methodology was …
Human–robot collaborative assembly (HRCA) is one of the hot trends in intelligent manufacturing and has gained the attention of many researchers. In HRCA, errors in assembly sequence may reduce working efficiency and damage workpieces. To detect the assembly sequence errors rapidly and not influence the assembly process, the assembly …
Bridge displacement is an important part of safety evaluations. Currently, bridge displacement monitoring uses only a few measurement points, making it difficult to evaluate safety. To address this problem, we propose a …
In bridge structure monitoring and evaluation, deformation data serve as a crucial basis for assessing structural conditions. Different from discrete monitoring points, spatially continuous deformation modes provide a comprehensive understanding of deformation and potential information. Terrestrial laser scanning (TLS) is a three-dimensional deformation …
. [M]. . : , 2002. The State Environmental Protection Administration.
Calculations Use the spreadsheet software to set up a table like the one below. Time /s V (O 2 ) collected /cm 3 [H 2 O 2 ] /mol dm -3 Use [H 2 O 2 ] = 240 to work out the fourth column. (40−V ) Use the spreadsheet software to plot the graph of [H 2 O 2 ] against time. Use the graph to find two values for the half life.
In previous studies on multiple hypothesis solution separations (MHSS) advanced autonomous integrity monitoring (ARAIM) in phase-based GNSS precise point positioning (PPP)-real-time kinematic (RTK), the risk of wrong (or incorrect) ambiguity fixing is generally considered to be negligible after ambiguity validation. However, this unrealistic …
which is in accordance with the constraint (5). As for case (4), the reliability of each monitor station can be guaranteed by checking the observations of multi-set receivers which refers to a problem of data quality monitoring or system reliability (Hamada, 2008; Yin & Chai, 2020).As for WAAS monitor stations, three sets of receivers are equipped to collect …
For the integrity monitoring of a multi-source PNT (Positioning, Navigation, and Timing) resilient fusion navigation system, a theoretical framework of multi-level autonomous integrity monitoring is proposed. According to the mode of multi-source fusion navigation, the framework adopts the top-down logic structure and establishes the navigation source fault …
Subdural hematomas result from an intracranial hemorrhage and blood pooling in the subdural cavity. Located between the dura mater and the brain parenchyma, they have the highest incidence of intracranial hematomas [1], [2], [3].Related to previous studies in which we simulated regular-shaped hematomas through simulation and proposed a continuous …
The measurement of wing dynamic deformation in morphing aircraft is crucial for achieving closed-loop control and evaluating structural safety. For variable-sweep wings with active large deformation, this paper proposes a novel videogrammetric method for full-field dynamic deformation measurement. A stereo matching method based on epipolar geometry …
Wear is an inevitable problem in abrasive belt grinding, and the material removal rate decreases with continuous wear of the abrasive belt. This indicates that the grinding control force is affected by two dynamic factors, namely the actual material removal and abrasive belt wear state. To obtain an accurate force-control model to achieve uniform material removal, a new method for …
ProjektöversiktDen 4 februari 2024 slutförde GSL Energy en installation i USA med ett 50 kWh batterisystem för energilagring i hemmet med en Sol-Ark-växelriktare. Denna installation ger en …
Unmanned aerial vehicles (UAVs), relying on wireless communication, are inevitably influenced by the complex electromagnetic environment, attributed to the development of wireless communication …
Tool condition monitoring techniques can usually be divided into direct monitoring methods and indirect monitoring methods [5].The direct monitoring method is to directly measure the actual size of the tool wear area or directly detect the tool edge condition, mainly including computer vision method [6], optical measurement method, contact resistance …
NPP is a complex dynamic time-varying system with intricate and variable operating conditions, and has the characteristics of numerous state parameters, diversified fault types and various fault features (Peng et al., 2018).During the operation of NPP, most of the time is in a normal state, the abnormal state only takes a very small amount of time, and it leads …
Energilagring i batteri fungerar så att det lagras energi, alltså el, i olika typer av batterier. Kärt barn har många namn sägs det och du har kanske också hört talas om både batterilagring och …
Ultra-weak FBG sensing technology is a new way to achieve high-precision and long-distance distributed deformation measurement [13], [14].Zhang et al. [15] used weak FBG arrays to monitor the strain in the main beam of the bridge. However, the deformation of the bridge cannot be obtained, and it is difficult to accurately evaluate the structural health status of …
Vattenfall erbjuder även batterier som fossilfria lagringslösningar. Med batterilagring kan industrikunderna hantera sin förbrukning på ett mer flexibelt sätt genom att kapsla in höglaster …
The manufacturing industry is facing a revolution. The development of intelligent manufacturing requires to explore new technical approaches to improve production efficiency [1].The monitoring of the intelligent milling process can ensure the safety and process quality of automatic processing equipment, which is a key technology to realizing intelligent …
Droplet transfer frequency is a decisive factor in welding quality and efficiency in gas tungsten arc welding (GTAW). However, there still needs to be a monitoring method for droplet transfer frequency with high precision and good real-time performance. Therefore, a real-time monitoring method for droplet transfer frequency in wire-filled GTAW using arc sensing is …
A new IGBT module bond wires condition monitoring method is proposed, which realizes the condition monitoring of IGBT module bond wires aging in off-state. The method defines the collector-emitter peak voltage (VCEp) when the IGBT module is …
MUSIC algorithm has been applied to fields including radar [48], sonar [49], and seismic exploration [50].This algorithm utilizes a sensor array to capture signals emitted by signal sources and then generates a covariance matrix using the collected signals.
Also check out … Rates of reaction – this CPD article explains how the concept of reaction rates could be introduced.; Gradients and rates of change – this article highlights the maths skills students need to correctly interpret graphs.; Rating rate laws – not all students have developed the …
《》. [M]. 4. : , 2002: 38-47. The State Environmental Protection Administration The Water and Wastewater Monitoring Analysis Method Editorial Board. Water and Wastewater monitoring analysis method. 4th Edition.
The wear state of an abrasive belt is one of the important factors affecting the grinding precision of belt grinding processes. At present, there are two problems associated with the monitoring method of the wear condition of abrasive belts: (1) there are no uniform wear criteria to classify the wear condition of abrasive belts, and the segmentation threshold of the …
Cables are important stress components in cable-stayed bridges [1].During the actual operation of cable-stayed bridges, due to environmental factors and traffic loads, cables are prone to corrosion, fatigue, and other damage [2], [3], [4], and cable deterioration can result in extremely serious accidents.Therefore, properly monitoring cables to avoid accidents is …
Vägmonterade energilagringsbatterier är rymdbesparande, estetiskt anpassade och effektiva. De ger reservkraft och integrerar förnybara energikällor.
Civil engineering structures built according to modern codes are designed for a service life of normally more than 100 years. At the same time, there is a growing pressure to keep existing aged ...
Spiral tube bundled nozzles are adopted by many types of liquid rocket engines (LRE) due to good cooling effect and high stiffness, such as Vulcan-1 [1] and Vulcain-2 [2] of the European Ariane 5 rocket, YF-75 [3] and YF-77 engines of China''s long march rocket series. One of the major challenges in spiral tube bundled LRE nozzle manufacture is the high-precision …
Monteringsmetod. Ej relevant (1) Bredd. 350 mm (1) 670 mm (2) 700 mm (2) 890 mm (1) Modell/Utförande. Litium (Li) (2) Litiumjon (Li-ion) (1) Övrigt (2) Typ av tillbehör/reservdel. …
Owing to the influence of ground capacitance in electric vehicles, in the traditional unbalanced electric bridge DC insulation monitoring (DC-IM) method, the voltage of positive and negative ...