2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)最新文献

筛选
英文 中文
Human- Robot Interface for Teleoperated Robotized Planetary Sample Collection and Assembly 远程操作机器人行星样品采集与组装的人机界面
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189984
Lorenzo Pagliara, Vincenzo Petrone, Enrico Ferrentino, P. Chiacchio
{"title":"Human- Robot Interface for Teleoperated Robotized Planetary Sample Collection and Assembly","authors":"Lorenzo Pagliara, Vincenzo Petrone, Enrico Ferrentino, P. Chiacchio","doi":"10.1109/MetroAeroSpace57412.2023.10189984","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189984","url":null,"abstract":"As human space exploration evolves toward longer voyages farther from our home planet, in-situ resource utilization (ISRU) becomes increasingly important. Haptic teleoperations are one of the technologies by which such activities can be carried out remotely by humans, whose expertise is still necessary for complex activities. In order to perform precision tasks with effectiveness, the operator must experience ease of use and accuracy. The same features are demanded to reduce the complexity of the training procedures and the associated learning time for operators without a specific background in robotic teleoperations. Haptic teleoperation systems, that allow for a natural feeling of forces, need to cope with the trade-off between accurate movements and workspace extension. Clearly, both of them are required for typical ISRU tasks. In this work, we develop a new concept of operations and suitable human-robot interfaces to achieve sample collection and assembly with ease of use and accuracy. In the proposed operational concept, the teleoperation space is extended by executing automated trajectories, offline planned at the control station. In three different experimental scenarios, we validate the end-to-end system involving the control station and the robotic asset, by assessing the contribution of haptics to mission success, the system robustness to consistent delays, and the ease of training new operators.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115266137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reducing static linearity testing for ADCs 减少adc的静态线性测试
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10190046
Grazia Iadarola, P. Daponte, L. De Vito, S. Rapuano, S. Spinsante
{"title":"Reducing static linearity testing for ADCs","authors":"Grazia Iadarola, P. Daponte, L. De Vito, S. Rapuano, S. Spinsante","doi":"10.1109/MetroAeroSpace57412.2023.10190046","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10190046","url":null,"abstract":"Static linearity testing of Analog-to-Digital Converters (ADCs) is known to be a time-consuming process. This paper describes a method exploiting the Compressed Sensing to reduce time in ADCs for linearity testing based on the static transfer curve. The proposed method reduces randomly the input voltage values to characterize the ADC, computing reduced values of Integral Nonlinearity (INL). Subsequently, the complete INL curve is reconstructed, by exploiting the INL sparsity in the Fourier domain. By comparing the INL curve obtained by the standard method to the reconstructed INL curve, the error value is generally low. Thus, the proposed method results promising to reduce the overall duration of static linearity testing for ADCs.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115645819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low cost and label free Raman sensors based on Ag-coated ZnO nanorods for monitoring astronaut's health 基于镀银氧化锌纳米棒的低成本和无标签拉曼传感器,用于监测宇航员的健康
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189969
F. Maita, L. Maiolo, I. Lucarini, Ignacio Del Rio De Vicente, E. Palmieri, Eleonora Fiorentini, V. Mussi
{"title":"Low cost and label free Raman sensors based on Ag-coated ZnO nanorods for monitoring astronaut's health","authors":"F. Maita, L. Maiolo, I. Lucarini, Ignacio Del Rio De Vicente, E. Palmieri, Eleonora Fiorentini, V. Mussi","doi":"10.1109/MetroAeroSpace57412.2023.10189969","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189969","url":null,"abstract":"Astronauts usually are forced to work in harsh environments, facing challenges related to living in microgravity conditions, operating in outer space, or even exploring planets with unknown pathogens and viruses. To this end, it is essential to provide astronauts easy tools to monitoring their health status with low cost and fast diagnostic methods. Indeed, undetected damages occurring at one crew member can compromise an entire mission and worst, it can cause the death for all the other crew members. In this respect, biosensors can offer valuable solutions. Among different biosensing techniques, Raman sensing can provide information on complex organic compounds like proteins, enzymes, DNA mutations etc. Here we present a low cost and totally label free Raman platform based on silver-coated zinc oxide nanostructures to reveal biomarkers and chemical alterations in human fluids like saliva or blood, without the need of sample processing.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115753736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diagnosis of space-induced effects on blood components by label-free optical technique and microfluidics 利用无标记光学技术和微流体技术诊断空间对血液成分的影响
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189985
J. Běhal, Zhe Wang, L. Miccio, M. Mugnano, P. Memmolo, D. Pirone, V. Bianco, G. La Verde, I. Kurelac, M. Villone, M. Pugliese, C. Arrichiello, F. Ferranti, P. Muto, Silvia Mari, P. Maffettone
{"title":"Diagnosis of space-induced effects on blood components by label-free optical technique and microfluidics","authors":"J. Běhal, Zhe Wang, L. Miccio, M. Mugnano, P. Memmolo, D. Pirone, V. Bianco, G. La Verde, I. Kurelac, M. Villone, M. Pugliese, C. Arrichiello, F. Ferranti, P. Muto, Silvia Mari, P. Maffettone","doi":"10.1109/MetroAeroSpace57412.2023.10189985","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189985","url":null,"abstract":"A recently developed technology is presented on the combination of label-free imaging and microfluidics boosted by artificial intelligence architectures to detect morphological variations induced on biological cells as, for example, blood components. The new tool is named Holographic Image Flow Cytometry (HIFC) system where Quantitative Phase Contrast (QPMs) images are retrieved for cell flowing and rotating into a microfluidics circuit. The HIFC is based on interferometric imaging scheme thus avoiding fluorescence based sample preparations. For each cells travelling in the field of view multiple images are recorded at different rotation angles thus achieving a wide and informative dataset to identify different cell populations. Furthermore it has been proved that such technology can provide tomographic phase contrast images at single cell level. The HIFC system is able to supply about 200 images for each rotating cells. In the present manuscript the imaging system and the numerical processing will be described and the main results reviewed. Among others, the application of the technology on model lymphocytes Juckart cells irradiated at different radiation doses will be presented. Furthermore, recent improvement in the stability of the optical setup will be reported.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127339365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strain gauge thermal compensation: approaches and new improvements 应变片热补偿:方法及新改进
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10190050
Andrea Cazzani, A. Menichino, M. Inverno, M. Belardo
{"title":"Strain gauge thermal compensation: approaches and new improvements","authors":"Andrea Cazzani, A. Menichino, M. Inverno, M. Belardo","doi":"10.1109/MetroAeroSpace57412.2023.10190050","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10190050","url":null,"abstract":"The present paper deals with strain gauge thermal compensation strategies, with the aim of reducing to a minimum the measurement errors due to thermal effects. In the paper a survey of various techniques used to compensate these thermal effects is reported, along with some experimental activities performed in order to improve the installation processes. Particular attention was devoted to the analytical approach and to the dummy gauge technique, highlighting the difficulties for composite materials. As for the analytical approach, a deep description was made for the measurement of the coefficient of thermal expansion (CTE) directly by means of strain gauges, whose precise identification is crucial. Referring to the dummy gauge technique instead some experiments have been performed in order to test a new installation process and solution that could guarantee reducing measurement errors. The results show that the dummy gauge technique is the most suitable for the present case: the instrumentation installed on the wing of the Next Generation Civil Tiltrotor under development by Leonardo Helicopters Division within Clean Sky 2 Fast Rotorcraft Aircraft Demonstrator Platform.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"7 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126034145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Adaptive Vertical Farm as an Efficient Tool for the Cultivation of Multiple Crops in Space 自适应垂直农场作为空间多作物栽培的有效工具
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189949
P. Bagnerini, Mauro Gaggero, Marco Ghio, F. Malerba
{"title":"The Adaptive Vertical Farm as an Efficient Tool for the Cultivation of Multiple Crops in Space","authors":"P. Bagnerini, Mauro Gaggero, Marco Ghio, F. Malerba","doi":"10.1109/MetroAeroSpace57412.2023.10189949","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189949","url":null,"abstract":"The adaptive vertical farm is proposed to produce a variety of fresh food for astronauts during missions or future space installations. It is an innovative vertical greenhouse that relies on the idea of gradually adjusting the distance between the shelves moving them automatically according to the growth of the plants. We refer to this concept as adaptive principle. In more detail, an optimal scheduling algorithm of sowings is presented for the cultivation of two types of crops using mixed-integer linear programming to fully exploit the available vertical space and maximize the production yield. Numerical results are reported in a case study involving the cultivation of wheat and lettuce to showcase the effectiveness of the approach in comparison with a vertical farm with fixed shelves.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116396976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design and Performance Studies of a Simple Direct Digital Electronic Instrumentation System for Thermistor Interfacing 热敏电阻接口简易数字电子仪表系统的设计与性能研究
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189940
S. R, S. B. Nair, Chandrika Sreekanthan Anoop, Roy Thankachan
{"title":"Design and Performance Studies of a Simple Direct Digital Electronic Instrumentation System for Thermistor Interfacing","authors":"S. R, S. B. Nair, Chandrika Sreekanthan Anoop, Roy Thankachan","doi":"10.1109/MetroAeroSpace57412.2023.10189940","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189940","url":null,"abstract":"The paper proposes a direct-digital interfacing circuit for linearization of thermistors. The proposed circuit comprises a switched passive linearized network and a simple relaxation-oscillator circuit for digitization. The salient features of the proposed scheme include, 1) simple architecture for thermistor linearization, 2) direct-digital output, without requiring analog-to-digital conversion, 3) usage of a single (uni-polar) reference voltage. The working principle of the interfacing system is established using a detailed mathematical derivation. The efficacy of the proposed digitizer is evaluated using simulation and hardware experiment studies, over different range of temperatures. Results demonstrate that the interfacing system can work very well for the temperatures considered. This digital converter can find number of applications, in aviation, aerospace and other industrial sectors.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128983037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Educational Approaches for Personnel in Vessel Traffic Services 船舶交通服务人员的教育方法
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10190025
J. Carson-Jackson, M. Fiorini, Marco Galloro
{"title":"Educational Approaches for Personnel in Vessel Traffic Services","authors":"J. Carson-Jackson, M. Fiorini, Marco Galloro","doi":"10.1109/MetroAeroSpace57412.2023.10190025","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10190025","url":null,"abstract":"The role of Vessel Traffic Services (VTS) continues to evolve as a key partner in safe navigation, port efficiency and protection of the maritime environment and adjacent shore infrastructure. The personnel who carry out the duties related to VTS are trained in the specific elements and competences of VTS. The core elements of the training program have undergone revision based on over two decades of experience. The changes in the training reflect not only the features of the current maritime ecosystem but also educational training methodologies. This paper presents an overview of the requirements, and obligations, for VTS training. It also explores the role of VTS in port resource management, including the interactions between VTS, Pilots, Masters and allied services.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124651017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of annealing in deposited Ti-Pt thin films sensing elements for quartz crystals microbalances 沉积Ti-Pt薄膜传感元件退火对石英晶体微天平的影响
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10189942
Elimar Vieira Vaz Junior, Chiara Martina, B. Saggin, Riccardo Gerosa, E. Zampetti, Maria Aurora Mancuso, A. Longobardo, E. Palomba, F. Dirri, C. Gisellu, D. Scaccabarozzi
{"title":"Influence of annealing in deposited Ti-Pt thin films sensing elements for quartz crystals microbalances","authors":"Elimar Vieira Vaz Junior, Chiara Martina, B. Saggin, Riccardo Gerosa, E. Zampetti, Maria Aurora Mancuso, A. Longobardo, E. Palomba, F. Dirri, C. Gisellu, D. Scaccabarozzi","doi":"10.1109/MetroAeroSpace57412.2023.10189942","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10189942","url":null,"abstract":"This work discusses the effect of annealing heat treatment on deposited thin films for quartz crystal microbalances (QCMs), intended to be used for thermogravimetric analysis at high temperatures. The developed QCMs comprise embedded deposited resistors that can be employed either as heaters or temperature sensors, which are manufactured by particle vapor deposition of a bilayer of Ti-Pt microfilm. There is evidence in the literature that the annealing heating treatment affects the electrical resistance and the thermal coefficient of resistance (TCR) of this type of microfilm, especially in high-temperature ranges. It was found that for the analyzed conditions, i.e. with annealing temperatures varying between 250°C and $350^{circ}mathrm{C}$, a general increase of the TCR is obtained, providing an improvement of the sensitivity of the resistors for the expected temperature measurement range.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124678580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Re-entry dynamics of the reusable stage of a space launcher: a first level model 空间发射装置可重复使用阶段的再入动力学:一级模型
2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2023-06-19 DOI: 10.1109/MetroAeroSpace57412.2023.10190019
M. Chiarelli, Stefano Carbutti, G. Mariani, G. Palaia, K. A. Salem
{"title":"Re-entry dynamics of the reusable stage of a space launcher: a first level model","authors":"M. Chiarelli, Stefano Carbutti, G. Mariani, G. Palaia, K. A. Salem","doi":"10.1109/MetroAeroSpace57412.2023.10190019","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace57412.2023.10190019","url":null,"abstract":"The development of reusable launchers has increased significantly in recent years, mainly due to the advent of private companies that have achieved great successes in this field. The main reasons for going down this path are to reduce the cost and environmental impact of the space industry. This paper addresses the study of the re-entry dynamics and control of the first stage of a reusable launcher schematized as a rigid body having 3 DOF, the translations in the vertical plane and the rotation in pitching. The re-entry dynamics is faced by solving nonlinear-coupled differential equations. The study begins with the flip maneuver that takes place above the Kàrmàn line and finishes with the stage landing. Stability in the dense atmosphere is studied through a state space model at different altitudes. Results include the time histories of descent velocity, attitude and altitude, obtained through the implementation of an in-house code, as well as the mathematical expressions of the transfer functions of the system in the state space related to the last part of the re-entry maneuver. This latter result is the most important as it makes the model general and allows the study of a number of cases of interest as the system inputs change.","PeriodicalId":153093,"journal":{"name":"2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124023488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信