The authors propose a new defined tensile stress distribution for steel fiber reinforced concrete (SFRC) to evaluate the flexural strength of SFRC beams. It is a simplified formula based on the SFRC tensile stress – ...
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This paper introduces techniques in Gaussian process regression model for spatiotemporal data collected from complex *** study focuses on extracting local structures and then constructing surrogate models based on Gau...
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This paper introduces techniques in Gaussian process regression model for spatiotemporal data collected from complex *** study focuses on extracting local structures and then constructing surrogate models based on Gaussian process *** proposed Dynamic Gaussian Process Regression(DGPR)consists of a sequence of local surrogate models related to each *** DGPR,the time-based spatial clustering is carried out to divide the systems into sub-spatio-temporal parts whose interior has similar variation patterns,where the temporal information is used as the prior information for training the spatial-surrogate *** DGPR is robust and especially suitable for the loosely coupled model structure,also allowing for parallel *** numerical results of the test function show the effectiveness of ***,the shock tube problem is successfully approximated under different phenomenon complexity.
Bending test of reinforced concrete beams using materials imported from Southeast Asia were tested to evaluate the non-contact lap splice length of longitudinal bars encased in grouted corrugated ducts. The test resul...
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In this study, we examined the effect of increasing the diameter of the CFRP strand on the structural performance of the end fixing structure with the aim of further expanding the application of the end fixing structu...
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This paper addresses the global finite-time pose control problem of a leader-following dual spacecraft six-degree-of-freedom (6-DOF) formation in the twistor framework, where velocity measurements of the follower spac...
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Whether the oil and gas fields in the Carbon Capture,Utilization,and Storage(CCUS)project use underground storage or energy supplementation to enhance oil recovery,they must be injected or monitored through the ***,th...
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Whether the oil and gas fields in the Carbon Capture,Utilization,and Storage(CCUS)project use underground storage or energy supplementation to enhance oil recovery,they must be injected or monitored through the ***,the foundation and requirement for the safety of carbon dioxide(CO_(2))storage is the wellbore's *** CO_(2) is dissolved in water,carbonic acid is created,and this acid strongly corrodes underground ***,the integrity issue with CO_(2) injection wells is more noticeable than with other *** annular pressure during gas injection is the primary symptom of gas injection string leakage in CO_(2) injection *** study aims to provide real-time pipe string monitoring using a distributed optical fiber temperature sensing system(DTS)and a distributed optical fiber acoustic sensing system(DAS).Variations in temperature and vibration are caused by annulus pressure relief or gas *** fiber logging,in contrast to traditional logging,has better performance indicators for optical fiber sensing *** adapt to complex wellbore conditions,it is necessary to enhance the temperature accuracy of DTS and the sensitivity and signal-to-noise ratio of DAS in CO_(2) drive injection wells based on the features of the gas injection *** differentiate the leakage signal from the regular fluid flow signal,the energy calculation in the frequency band is done for DAS based on noise reduction,and the signal processing in the frequency band is done by the spectrum characteristics of the CO_(2) wellbore *** translation invariant wavelet algorithm is the primary denoising method for DTS,overcoming the shortcomings of traditional wavelet threshold algorithms such as excessive smoothing and the pseudo-Gibbs ***,the depth correction during the optical cable lowering process is also examined in this paper.A CO_(2) gas injection well field experiment was conducted using this technology.A 1671m well w
Many computer vision models designed for plant diagnosis predominantly focus on training with leaf images. However, real-world diagnosis often requires a comprehensive approach that extends beyond the examination of l...
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This paper proposes a multi-access and multi-user semantic communication scheme based on semantic matching and intent deviation to address the increasing demand for wireless users and *** scheme enables flexible manag...
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This paper proposes a multi-access and multi-user semantic communication scheme based on semantic matching and intent deviation to address the increasing demand for wireless users and *** scheme enables flexible management of long frames,allowing each unit of bandwidth to support a higher number of *** leveraging semantic classification,different users can independently access the network through the transmission of long concatenated sequences without modifying the existing wireless communication *** overcome the potential disadvantage of incomplete semantic database matching leading to semantic intent misunderstanding,the scheme proposes using intent deviation as an *** allows different receivers to interpret the same semantic information differently,enabling multiplexing where one piece of information can serve multiple users with distinct *** results show that at a bit error rate(BER)of 0.1,it is possible to reduce the transmission by approximately 20 semantic basic units.
Ultrasonic biochemical detection is important for biomarker detection,drug monitoring,and medical diagnosis,as it can predict disease progression and enable effective measures to be taken in a timely ***,the ultrasoni...
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Ultrasonic biochemical detection is important for biomarker detection,drug monitoring,and medical diagnosis,as it can predict disease progression and enable effective measures to be taken in a timely ***,the ultrasonic technology currently used for biochemical marker detection is directly modified on the surface of the *** associated test methods are costly and unreliable while having poor repeatability;therefore,they cannot achieve low-cost rapid *** this study,a detection mechanism based on the Rayleigh scattering of acoustic waves caused by nanoparticles,which causes changes in the received sound pressure,was developed for the first *** modification of antibodies on an insertable substrate decouples the functionalization step from the sensor surface and facilitates the application of capacitive micromachined ultrasonic transducers(CMUTs)in conjunction with Au nanoparticles(AuNPs)for CA19-9 cancer antigen detection.A corresponding detection theory was established,and the relevant parameters of the theoretical formula were verified using different *** our fabricated CMUT chip with a resonant frequency of 1 MHz,the concentrations and substances of the CA19-9 antigen markers were successfully *** the concentration range of 0.1–1000 U/mL,the receiving voltage decreased with increasing *** investigations revealed that the influence of other interfering markers in the human body can be ignored,demonstrating the feasibility and robustness of biochemical detection based on CMUTs combined with nanoparticles.
With the rise of blockchain as a more promising technology, industries and academia are interested to foresee a decentralized and transparent ecosystem of data storing, sharing, and verifying across platforms. The cur...
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