Measurement最新文献_第6页

AI-IoT assisted wearable bio-impedance sensor for classification of smoking habits on Fagerstrom scale AI-IoT辅助可穿戴生物阻抗传感器，用于Fagerstrom量表吸烟习惯分类

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-14 DOI: 10.1016/j.measurement.2025.118171

Aruna Mondal , Debeshi Dutta , Soumen Sen , Nripen Chanda , Soumen Mandal

{"title":"AI-IoT assisted wearable bio-impedance sensor for classification of smoking habits on Fagerstrom scale","authors":"Aruna Mondal , Debeshi Dutta , Soumen Sen , Nripen Chanda , Soumen Mandal","doi":"10.1016/j.measurement.2025.118171","DOIUrl":"10.1016/j.measurement.2025.118171","url":null,"abstract":"<div><div>Understanding smoking habits and their dependency is crucial, as it provides valuable insights into an individual’s respiratory health and lung capacity. We report the development of an IoT-enabled wearable that can measure the bio-impedance of the thoracic region of subjects, transmit the measurements to a remote server using message query telemetry transport (MQTT) protocol, and classify the smoking habits on Fagerstrom scale employing machine learning (ML). The bio-impedance data was collected from 341 smokers post which the dataset underwent calibration, filtering, and feature extraction. The feature-extracted data was labelled using Fagerstrom scale, the scores being calculated using a standard questionnaire. The extracted features were used to train k-nearest neighbour (kNN), random forests (RF), and support vector machine (SVM) classifiers in Python 3.5, using stratified k-fold cross validation. The SVM achieved highest classification accuracy of 97%, followed by RF (96%) and kNN (93%) on Fagerstrom scale with scores ranging between 0–10 highlighting the wearable’s ability to accurately classify smoking dependency, offering a reliable tool for comprehensive respiratory health monitoring. The feature importance results revealed cell membrane capacitance, heterogeneity of tissue and age were most significant features, establishing their importance in lung damage due to smoking. Higher respiratory rates for heavy smokers as compared to light smokers on Fagerstrom scale further established strong dependence of behavioural aspect of smoking habit with lung damage and lung capacity. A key application of this wearable lies in the health insurance sector, where accurate assessment of smoking habits is critical for determining insurance premiums.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118171"},"PeriodicalIF":5.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-precision calibration method for event cameras towards space situational awareness 面向空间态势感知的事件相机高精度标定方法

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-14 DOI: 10.1016/j.measurement.2025.117854

Jiachen Xie, Gangyi Wang, Xinguo Wei, Guangjun Zhang

{"title":"A high-precision calibration method for event cameras towards space situational awareness","authors":"Jiachen Xie, Gangyi Wang, Xinguo Wei, Guangjun Zhang","doi":"10.1016/j.measurement.2025.117854","DOIUrl":"10.1016/j.measurement.2025.117854","url":null,"abstract":"<div><div>Event cameras have shown significant potential in spatial situational awareness owing to the advantages of high temporal resolution, low latency, and high dynamic range. To enable event cameras to rapidly identify, accurately locate, and continuously track spatial targets, we propose a novel high-precision calibration method. The method innovatively employs a rotary table to dynamically collect calibration data, achieving precise alignment between the rotary table’s two-axis angles and the calibration point positions through the construction of intersecting trajectories. To determine the sub-pixel centroid positions of the calibration points, we design a time-interpolation centroid localization algorithm based on the precise timestamp information provided by the event camera. The algorithm is employed to calculate the centroid positions of a point light source at various time instances, and subsequently applies linear fitting techniques to derive its local motion trajectory equation. Ultimately, the calibration point positions are determined by solving for the intersections of the intersecting trajectories, which subsequently facilitates for the computation of the camera’s intrinsic and extrinsic parameters. Experimental results demonstrate that the proposed calibration method achieves reprojection errors of 0.0250 pixels and 0.0301 pixels along the two-axis of the image plane, significantly enhancing the calibration accuracy of event cameras.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 117854"},"PeriodicalIF":5.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TEGDNet: Texture Enhancement Guided Detection Network for spiral welded pipeline defect detection 用于螺旋焊管缺陷检测的织构增强导向检测网络

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-14 DOI: 10.1016/j.measurement.2025.118052

Yu Zhang , Kechen Song , Wenqi Cui , Yunhui Yan , Guotong Lv , Yanning Zhang

{"title":"TEGDNet: Texture Enhancement Guided Detection Network for spiral welded pipeline defect detection","authors":"Yu Zhang , Kechen Song , Wenqi Cui , Yunhui Yan , Guotong Lv , Yanning Zhang","doi":"10.1016/j.measurement.2025.118052","DOIUrl":"10.1016/j.measurement.2025.118052","url":null,"abstract":"<div><div>Spiral welded pipelines play a crucial role in the transportation industry. However, defects in the pipeline welds pose significant safety hazards, and their detection is challenging. Current detection methods are highly subjective, labor-intensive, and prone to missed or overlooked defects without sufficient texture information. Therefore, we propose a solution to address these challenges. Firstly, we construct a dataset of spiral welded pipeline weld defects (NEU-WELD-2000). Furthermore, we propose a texture enhancement guided detection network (TEGDNet) to detect defects with insufficient texture information, such as weak textures, strong interference, scale variation, and tiny targets. TEGDNet includes an encoder structure for feature extraction and enhancement and a decoder structure based on super-resolution reconstruction. Experiments have demonstrated that our method achieves excellent detection results with fewer than 4M parameters, while mAP<sub>50</sub> improves by 3.2%, and mAP<sub>75</sub>, which is typically harder to improve, increases by 1.2% compared to the baseline. Additionally, we validate the effectiveness of each module through ablation experiments. Finally, the proposed detection method shows great potential in actual pipeline weld detection, significantly saving time and costs for operators through visualization software. The source code and the dataset are publicly available at <span><span>https://github.com/VDT-2048/TEGDNet</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118052"},"PeriodicalIF":5.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategic measurement reduction in concrete ultrasonic transmission tomography 混凝土超声透射层析成像的策略测量减少

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-14 DOI: 10.1016/j.measurement.2025.118170

Lara Guizi Anoni , Vladimir Guilherme Haach , Lev Khazanovich

{"title":"Strategic measurement reduction in concrete ultrasonic transmission tomography","authors":"Lara Guizi Anoni , Vladimir Guilherme Haach , Lev Khazanovich","doi":"10.1016/j.measurement.2025.118170","DOIUrl":"10.1016/j.measurement.2025.118170","url":null,"abstract":"<div><div>Non-destructive testing has become increasingly important in the civil engineering industry as a means to extend the lifespan of buildings through appropriate maintenance actions. Among these tests, ultrasonic tomography stands out as an effective method for accurately assessing the internal state of concrete elements. However, the challenge lies in the large number of measurements required for image reconstruction. This study proposes three distinct analyses to better understand the relationship between the number of measurements and the quality of ultrasonic transmission tomography, with a focus on minimizing the required measurements. Two methods were developed for the strategic reduction of measurements, utilizing the ICC metric and IDW interpolation. Numerical simulations were conducted on three models with different inclusion configurations, and an experimental model was used for validation. The findings suggest that a higher number of measurements does not necessarily result in higher quality images. Instead, strategic measurement reduction demonstrated that there is an optimal configuration that achieves high-quality images with a minimal number of measurements. This study offers valuable insights for practical applications in ultrasonic transmission tomography, potentially increasing its feasibility on a larger scale.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118170"},"PeriodicalIF":5.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Specular surfaces 3D measurement method based on the fusion of mono-phase measuring deflectometry and active tactile detection 基于相位测量偏转法和主动触觉检测相融合的镜面三维测量方法

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-14 DOI: 10.1016/j.measurement.2025.118174

Huiran Hu, Aiguo Song

{"title":"Specular surfaces 3D measurement method based on the fusion of mono-phase measuring deflectometry and active tactile detection","authors":"Huiran Hu, Aiguo Song","doi":"10.1016/j.measurement.2025.118174","DOIUrl":"10.1016/j.measurement.2025.118174","url":null,"abstract":"<div><div>Specular surfaces present significant challenges for traditional 3D vision measurement techniques due to their strictly reflective properties. This paper proposes an innovative 3D reconstruction method for specular surfaces that combines monocular phase measuring deflectometry with robot active tactile detection. Mono-PMD captures surface gradient data through phase-shift patterns, while tactile sensors provide sparse, precise absolute height information. By fusing these data sources, the proposed method addresses PMD’s gradient-height ambiguity and the limited data density of tactile sensing, achieving accurate reconstruction of specular surfaces. Experimental results show that this method reduces RMS error by 34.6 % compared to the conventional PMD methods, achieving RMS errors as low as 0.0084 mm after radius fitting on concave and convex mirrors with radii of 100 mm and 200 mm. This fusion approach effectively eliminates the need for imaging agents, streamlining measurement processes, and enabling faster, more precise 3D reconstruction and positioning. The proposed method offers robust technical support for future interactions between robotic systems and high-reflective specular objects.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118174"},"PeriodicalIF":5.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A filtering approach for speech emotion recognition using wavelet approximation coefficient 基于小波近似系数的语音情感识别滤波方法

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-13 DOI: 10.1016/j.measurement.2025.118165

Ravi, Sachin Taran

{"title":"A filtering approach for speech emotion recognition using wavelet approximation coefficient","authors":"Ravi, Sachin Taran","doi":"10.1016/j.measurement.2025.118165","DOIUrl":"10.1016/j.measurement.2025.118165","url":null,"abstract":"<div><div>The understanding of emotions from human speech signals is one of the most attractive areas of research. However, it is also challenging due to the influence of language and accent on speech. This framework presents a solution for speech emotion recognition based on wavelet approximation method. In this work, the Wavelet Approximation Speech Emotion Recognition (WaSER) model is presemted. The ‘db4′ wavelet is explored to calculate the approximation coefficient. At the initial stage, silent segments of the raw speech signal are eliminated using wavelet approximation and energy thresholding, resulting in a filtered signal. For the wavelet selection and threshold value optimization, various experiments are performed. A set of prosodic and spectral features is then extracted from the filtered signal. The potential features are selected using the ReliefF algorithm, and these optimal features are utilized for further processing. An ablation experiment is also presented to demonstrate the potential of the proposed WaSER model. The WaSER model was tested on various language-based datasets, including RAVDESS, EMOVO, Emo-DB and ShEMO, attaining a highest accuracy of 94.6% on the ShEMO dataset. The ablation experiment shows that filtering the speech significantly enhanced accuracy across all datasets and maintaining a balance between accuracy and sensitivity. Also, the proposed model drastically reduces the response time compared to the existing state of art.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118165"},"PeriodicalIF":5.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel valve coil current-based droplet mass control method: Proportional valves for liquid injection process 一种新的基于阀圈电流的液滴质量控制方法：比例阀

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-13 DOI: 10.1016/j.measurement.2025.118168

Pengcheng Gao , Kun Ren , Tao Luo , Chentao Ke , Heyang Geng , Yan Sun , Jiabo Cheng

{"title":"A novel valve coil current-based droplet mass control method: Proportional valves for liquid injection process","authors":"Pengcheng Gao , Kun Ren , Tao Luo , Chentao Ke , Heyang Geng , Yan Sun , Jiabo Cheng","doi":"10.1016/j.measurement.2025.118168","DOIUrl":"10.1016/j.measurement.2025.118168","url":null,"abstract":"<div><div>In order to enhance the accuracy of liquid injection, a novel droplet mass control method is proposed in this paper. First, the working principle of a proportional valve is analyzed, and a current-displacement model is established based on Newton’s second law. Next, by taking into account the key parameters such as maximum working frequency and flow rate coefficient, the relationship between the mass of a droplet and the displacement of the valve piston is built. Then, using computational fluid dynamics (CFD) simulation, the method for determining the flow rate coefficient is denoted under the conditions of different displacements. Subsequently, by using rational cubic Bézier curves, the nonlinear relationship between the coil current and the mass of a droplet is established. Finally, a fuzzy PID control algorithm is employed to achieve rapid positioning of the valve piston, ensuring a stable output of the droplet mass. The experimental results indicate that the proposed method can control the final liquid injection error is within 0.4 mg, ensuring high precision in liquid injection.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118168"},"PeriodicalIF":5.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The study of baseline drift in MEMS sonar buoys MEMS声纳浮标基线漂移研究

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-13 DOI: 10.1016/j.measurement.2025.118137

Zhengyu Bai , Guojun Zhang , Yujia Chai , Guochang Liu , Yan Liu , Yuhao Huang , Wenqing Zhang , Li Jia , Yanan Geng , Renxin Wang , Wendong Zhang

{"title":"The study of baseline drift in MEMS sonar buoys","authors":"Zhengyu Bai , Guojun Zhang , Yujia Chai , Guochang Liu , Yan Liu , Yuhao Huang , Wenqing Zhang , Li Jia , Yanan Geng , Renxin Wang , Wendong Zhang","doi":"10.1016/j.measurement.2025.118137","DOIUrl":"10.1016/j.measurement.2025.118137","url":null,"abstract":"<div><div>MEMS sonar buoys are susceptible to motion induced by surface wave excitation, leading to signal distortion and baseline drift. To address this, a coupled motion model between the buoy and surface waves was developed using COMSOL Multiphysics 6.0, with results consistent with theoretical analysis. The output response of the MEMS buoy under vibrations from different directions was simulated, and its sensitivity to vibration direction was analyzed. A damping device comprising two disks connected by multiple elastic ropes was proposed. Transfer function analysis was used to evaluate the impact of key design parameters, revealing superior vibration isolation across frequencies compared to traditional single-disk setups. Experimental validation showed that the proposed design effectively smooths the output signal baseline, achieving an improvement of 18.55 dB at 4 Hz. This study provides a multiphysics-based method for understanding buoy–wave interactions and offers a practical solution to enhance measurement stability. The proposed damping system holds significant promise for improving MEMS sonar buoy performance in complex marine environments.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118137"},"PeriodicalIF":5.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A compact in-situ shape sensing membrane integrating displacement reconstruction and sensor layout design algorithm 一种集成位移重构和传感器布局设计算法的紧凑原位形状传感膜

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-13 DOI: 10.1016/j.measurement.2025.118033

Jiafeng Zhu , Jin Lu , Jingjing Ji

{"title":"A compact in-situ shape sensing membrane integrating displacement reconstruction and sensor layout design algorithm","authors":"Jiafeng Zhu , Jin Lu , Jingjing Ji","doi":"10.1016/j.measurement.2025.118033","DOIUrl":"10.1016/j.measurement.2025.118033","url":null,"abstract":"<div><div>Precise real-time shape sensing enables early fault prevention and ensures the stable operation of key structures. This paper presents a novel in-situ shape sensing system designed to achieve high-precision full-field displacement reconstruction. Leveraging the flexible strain-sensing membrane with compact strain rosettes and the single-sided inverse finite element method (ssiFEM)-based layout design algorithm (sLDA), the system optimizes the arrangement of strain rosettes for enhanced reconstruct accuracy under varying working conditions. By integrating the ssiFEM with optimization algorithm, the proposed sLDA minimizes reconstruction errors, enabling the system to reconstruct reliable and real-time displacement fields using a limited number of measurement channels. Simulations and experiments on a variable camber wing demonstrate the effectiveness of the system, which improves up to 8.5% reconstruction accuracy compared to a conventionally uniform layout. The results confirm that the shape sensing system offers a versatile, cost-effective solution for multi-scale structural health monitoring applications.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118033"},"PeriodicalIF":5.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous Mach number, thrust, and combustion efficiency measurement for a scramjet by using a beam-jitter-resistant TDLAS sensor 利用抗波束抖动TDLAS传感器同时测量超燃冲压发动机马赫数、推力和燃烧效率

IF 5.2 2区工程技术

Measurement Pub Date : 2025-06-13 DOI: 10.1016/j.measurement.2025.118169

Wenbin Zhou , Zhang Cao , Suyi Dou , Qingchun Yang , Lijun Xu

{"title":"Simultaneous Mach number, thrust, and combustion efficiency measurement for a scramjet by using a beam-jitter-resistant TDLAS sensor","authors":"Wenbin Zhou , Zhang Cao , Suyi Dou , Qingchun Yang , Lijun Xu","doi":"10.1016/j.measurement.2025.118169","DOIUrl":"10.1016/j.measurement.2025.118169","url":null,"abstract":"<div><div>Scramjets are the optimal propulsion systems for hypersonic applications due to their air-breathing architecture. The Mach number, thrust, and combustion efficiency of a scramjet are very sensitive to parameter changes in the chamber and must be precisely measured using a non-contact experimental method, i.e., tunable diode laser absorption spectroscopy (TDLAS). The supersonic flow generated by the scramjet induces laser beam jitter in the TDLAS sensor. In this paper, a robust TDLAS sensor with beam-jitter-resistant capabilities was developed to quantify simultaneously temperature, pressure, H<sub>2</sub>O concentration, and speed of supersonic flows in scramjets. From these four parameters, an online evaluation method for Mach number, thrust, and combustion efficiency was validated on a direct-connected scramjet platform. In supersonic flow, the signal-to-noise ratio of the proposed sensor was improved by approximately 9.28 dB. During stable operation, relative errors for average temperature, pressure, H<sub>2</sub>O concentration, speed, Mach number, and thrust were respectively about 1.4 %, 3.4 %, 3.5 %, 0.4 %, 1.1 %, and 1.7 %. The combustion efficiency of the scramjet platform was 77.83 %. The proposed sensor enables the continuous monitoring of scramjet operation at an update rate of 5 kHz and provides an effective method for scramjet performance evaluation.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"256 ","pages":"Article 118169"},"PeriodicalIF":5.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0