Gospodarka Surowcami Mineralnymi-Mineral Resources Management最新文献

筛选
英文 中文
Złoża Kopalin o Znaczeniu Publicznym (ZKoZP) w relacji do Projektu Polskiej Polityki Surowcowej Państwa
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/122594
{"title":"Złoża Kopalin o Znaczeniu Publicznym (ZKoZP) w relacji do Projektu Polskiej Polityki Surowcowej Państwa","authors":"","doi":"10.24425/122594","DOIUrl":"https://doi.org/10.24425/122594","url":null,"abstract":"","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"4 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74753759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 13
Determination of iron minerals with landsat ETM+, Kırşehir, Turkey 用陆地卫星ETM+测定铁矿物,Kırşehir,土耳其
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/122579
Zeynel Basibuyuk, Engin Ekdur
{"title":"Determination of iron minerals with landsat ETM+, Kırşehir, Turkey","authors":"Zeynel Basibuyuk, Engin Ekdur","doi":"10.24425/122579","DOIUrl":"https://doi.org/10.24425/122579","url":null,"abstract":"Image processing techniques (band rationing, color composite, Principal Component Analyses) are widely used by many researchers to describe various mines and minerals. The primary aim of this study is to use remote sensing data to identify iron deposits and gossans located in kaman, Kırşehir region in the central part of Anatolia, Turkey. Capability of image processing techniques is proved to be highly useful to detect iron and gossan zones. landsat ETM+ was used to create remote sensing images with the purpose of enhancing iron and gossan detection by applying ArcMap image processing techniques. The methods used for mapping iron and gossan area are 3/1 band rationing, 3/5 : 1/3 : 5/7 color composite, third PC and PC4 : PC3 : PC2 as rgB which obtained result from standard Principal Component Analysis and third PC which obtained result from Developed selected Principal Component Analyses (Crosta Technique), respectively. Iron-rich or gossan zones were mapped through classification technique applied to obtained images. Iron and gossan content maps were designed as final products. These data were confirmed by field observations. It was observed that iron rich and gossan zones could be detected through remote sensing techniques to a great extent. This study shows that remote sensing techniques offer significant advantages to detect iron rich and gossan zones. It is necessary to confirm the iron deposites and gossan zones that have been detected for the time being through field observations.","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"37 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75198570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Image segmentation method of mine pass soil and ore based on the fusion of the confidence edge detection algorithm and mean shift algorithm 基于置信度边缘检测算法和均值移位算法融合的矿井通道土矿石图像分割方法
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/gsm.2021.139742
Feng Jin, Kai Zhan, S. Chen, Shuwei Huang
{"title":"Image segmentation method of mine pass soil and ore based on the fusion of the confidence edge detection algorithm and mean shift algorithm","authors":"Feng Jin, Kai Zhan, S. Chen, Shuwei Huang","doi":"10.24425/gsm.2021.139742","DOIUrl":"https://doi.org/10.24425/gsm.2021.139742","url":null,"abstract":"In the execution of edge detection algorithms and clustering algorithms to segment image containing ore and soil, ore images with very similar textural features cannot be segmented effectively when the two algorithms are used alone. This paper proposes a novel image segmentation method based on the fusion of a confidence edge detection algorithm and a mean shift algorithm, which integrates image color, texture and spatial features. On the basis of the initial segmentation results obtained by the mean shift segmentation algorithm, the edge information of the image is extracted by using the edge detection algorithm based on the confidence degree, and the edge detection results are applied to the initial segmentation region results to optimize and merge the ore or pile belonging to the same region. The experimental results show that this method can successfully overcome the shortcomings of the respective algorithm and has a better segmentation results for the ore, which effectively solves the problem of over segmentation. MEtoDa sEgMEntacji obrazu glEby i ruDy w oparciu o połączEniE algorytMu wykrywania krawęDzi ufności i algorytMu zMiany śrEDniEj S ł o w a k l u c z o w e wykrywanie krawędzi, ufność, algorytm zmiany średniej, segmentacja obrazu S t r e s z c z e n i e W procesie algorytmu wykrywania krawędzi ufności i algorytmu grupowania do segmentacji obrazu zawierającego rudę i glebę, obraz rudy o bardzo podobnych cechach tekstury nie może być skutecznie segmentowany, gdy oba algorytmy są używane osobno. W pracy zaproponowano nowatorską metodę segmentacji obrazu opartą na połączeniu algorytmu wykrywania krawędzi ufności i algorytmu zmiany średniej, który integruje kolor, teksturę i cechy przestrzenne obrazu. Na podstawie wstępnych wyników segmentacji uzyskanych przez algorytm segmentacji zmiany średniej informacja o krawędziach oryginalnego obrazu jest wyodrębniana za pomocą algorytmu wykrywania krawędzi opartego na stopniu ufności, a otrzymane wyniki są stosowane do początkowych wyników segmentacji obszaru w celu optymalizacji i scalenia rudy lub gleby należących do tego samego obszaru. Wyniki eksperymentalne pokazują, że metoda ta może skutecznie przezwyciężyć wady odpowiedniego algorytmu i daje lepsze wyniki segmentacji dla rudy, co dobrze rozwiązuje problem nadmiernej segmentacji.","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"49 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91386089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Brines from the Mesozoic formations of northern and central Poland as a prospective source of chemical raw materials 来自波兰北部和中部中生代地层的卤水作为化学原料的潜在来源
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/118655
B. Uliasz-Misiak, B. Winid
{"title":"Brines from the Mesozoic formations of northern and central Poland as a prospective source of chemical raw materials","authors":"B. Uliasz-Misiak, B. Winid","doi":"10.24425/118655","DOIUrl":"https://doi.org/10.24425/118655","url":null,"abstract":"Polish brines are highly mineralized and can potentially be used for recovery of selected useful elements such as magnesium and potassium. They also contain a number of other elements, including iodine, bromine, boron, and strontium. The results of the examination of the chemical composition of groundwater from the Mesozoic formations (bromine, iodine, lithium, magnesium, and strontium content) of northern and central Poland were analyzed. The basic statistical parameters of the content of these elements (Br, i, Mg) in brines of the Triassic, Jurassic, and Cretaceous deposits and the content of lithium and strontium in waters of the entire Mesozoic formations were determined. in order to indicate aquifers that are the most suitable for the recovery of bromine, iodine, lithium, magnesium, and strontium, the relationship between concentrations and the depth of retention and dependencies between selected chemical components of these waters were analyzed. it has been found that the mineralization and concentrations of magnesium, bromine, and iodine increase with the age of aquifers, where these waters occur. Triassic waters are the most prospective for bromine and magnesium recovery among all analyzed aquifers. Furthermore, a relationship between the content of bromine, strontium, and magnesium has also been observed. The increase in the 20 Uliasz-Misiak and Winid 2018 / Gospodarka Surowcami Mineralnymi – Mineral Resources Management 34(2), 5–20 content of individual elements observed for lithium, strontium, and bromine with the increasing depth indicates a potential abundance of waters occurring at significant depths. The presented analysis is an approximation of the content of bromine, iodine, lithium, magnesium, and strontium; however, it may be the basis for further studies on the perspectives of using brines from the Mesozoic deposits of central and northern Poland as a source of chemical raw materials. K e y w o r d s : brine, mesozoic, Poland, recovery, chemical raw materials Solanki z utworów mezozoicznych północnej i środowej polSki jako potencjalne źródło Surowców chemicznych s t r e s z c z e n i e W Polsce występują solanki o wysokich mineralizacjach, które mogą być potencjalnie wykorzystywane do odzysku wybranych pierwiastków użytecznych takich jak np. magnez, potas. mogą one również zawierać szereg innych pierwiastków, jak np. jod, brom, bor, stront. Przeanalizowano wyniki badań chemizmu wód podziemnych z utworów mezozoicznych z obszaru Polski północnej i środkowej pod kątem zawartości: bromu, jodu, litu, magnezu i strontu. obliczono podstawowe parametry statystyczne zawartości tych pierwiastków w solankach w utworach triasu, jury i kredy oraz litu i strontu łącznie wodach w utworach mezozoiku. W celu wskazania najbardziej perspektywicznych pięter wodonośnych pod kątem występowania bromu, jodu, litu, magnezu i strontu przeanalizowano zależności pomiędzy stężeniami a głębokością zalegania, a także zależności między wybranymi składnikami ","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"453 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76491830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
The pace of removing asbestos-containing products in Poland and the forecast time for the completion of this process 波兰清除含石棉产品的速度和预计完成这一进程的时间
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/gsm.2022.143018
Beata Klojzy-Karczmarczyk, J. staszczak
{"title":"The pace of removing asbestos-containing products in Poland and the forecast time for the completion of this process","authors":"Beata Klojzy-Karczmarczyk, J. staszczak","doi":"10.24425/gsm.2022.143018","DOIUrl":"https://doi.org/10.24425/gsm.2022.143018","url":null,"abstract":"Polish )","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"110 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72863231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
The effects of mineralogical changes that occurin artificial aggregates 人工聚集体中发生的矿物学变化的影响
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/118648
Z. Adamczyk, M. Grygierek, M. Łupieżowiec, J. Nowak, E. Strzałkowska
{"title":"The effects of mineralogical changes that occurin artificial aggregates","authors":"Z. Adamczyk, M. Grygierek, M. Łupieżowiec, J. Nowak, E. Strzałkowska","doi":"10.24425/118648","DOIUrl":"https://doi.org/10.24425/118648","url":null,"abstract":"","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"83 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79792141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Ore extraction and analysis from RGB image and 3D Point Cloud 基于RGB图像和三维点云的矿石提取与分析
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/gsm.2022.140612
Feng Jin, Kai Zhan, S. Chen, Shuwei Huang, Yuansheng Zhang
{"title":"Ore extraction and analysis from RGB image and 3D Point Cloud","authors":"Feng Jin, Kai Zhan, S. Chen, Shuwei Huang, Yuansheng Zhang","doi":"10.24425/gsm.2022.140612","DOIUrl":"https://doi.org/10.24425/gsm.2022.140612","url":null,"abstract":"Based on the theory of computer vision, a new method for extracting ore from underground mines is proposed. This is based on a combination of RGB images collected by a color industrial camera and a point cloud generated by a 3D ToF camera. Firstly, the mean-shift algorithm combined with the embedded confidence edge detection algorithm is used to segment the RGB ore image into different regions. Secondly, the effective ore regions are classified into large pieces of ore and ore piles consisting of a number of small pieces of ore. The method applied in the classification process is to embed the confidence into the edge detection algorithm which calculates edge distribution around ore regions. Finally, the RGB camera and the 3D ToF camera are calibrated and the camera matrix transformation of the two cameras is obtained. Point cloud fragments are then extracted according to the cross-calibration result. The geometric properties of the ore point cloud are then analysed in the subsequent procedure. WyDOByCIE I AnAlIzA RuDy z OBRAzu RGB I ChmuRy PunkTóW 3D S ł o w a k l u c z o w e obraz rudy, chmura punktów 3D, wbudowane wykrywanie krawędzi ufności, zmiana średniej, kalibracja krzyżowa S t r e s z c z e n i e W oparciu o teorię widzenia komputerowego zaproponowano nową metodę wydobycia rudy z podziemnych kopalń. Jest to połączenie obrazów RGB zebranych przez kolorową kamerę przemysłową oraz chmury punktów wygenerowanej przez kamerę 3D ToF. Po pierwsze, algorytm zmiany średniej w połączeniu z wbudowanym algorytmem wykrywania krawędzi ufności służy do segmentacji obrazu rudy RGB na różne regiony. Po drugie, efektywne regiony rud są podzielone na złoża rudy o dużych rozmiarach i zwałowiska składające się z małej ilości rudy. Metodą stosowaną w procesie klasyfikacji jest określenie ufności w algorytmie wykrywania krawędzi, który oblicza rozkład krawędzi wokół regionów rudnych. Wreszcie, kamera RGB i kamera 3D ToF są skalibrowane i uzyskuje się transformację matrycy obu kamer. Następnie, fragmenty chmury punktów są wyodrębniane zgodnie z wynikiem kalibracji krzyżowej. W kolejnej procedurze przeanalizowano właściwości geometryczne chmury punktów rudy.","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90037218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Sub-Permian basement in the Radom-Lublin area – geological and reservoir implications based on seismic geophysical data 拉多姆-卢布林地区次二叠系基底——基于地震地球物理资料的地质和储层意义
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/gsm.2022.141661
L. Dziewińska
{"title":"Sub-Permian basement in the Radom-Lublin area – geological and reservoir implications based on seismic geophysical data","authors":"L. Dziewińska","doi":"10.24425/gsm.2022.141661","DOIUrl":"https://doi.org/10.24425/gsm.2022.141661","url":null,"abstract":"This paper presents the results of an analysis of selected seismic profiles (reflection and refraction data) from the Radom-Lublin area aimed at obtaining a better understanding of geological structure and the identification of hydrocarbon deposits. To accurately reproduce the seismic reflection covering the sub-Permian formations, seismic cross sections were interpreted based on effective reflection coefficients (ERC). In interpreting the results, reference was made to the results of studies of the area using other geophysical methods. The results of these studies made it possible to obtain new information on the geology and structure of the Paleozoic complex of the Radom-Lublin area and its relationships with the basement tectonics. The structural arrangement of Carboniferous and Devonian formations as well as older Silurian, Ordovician, and Cambrian series were recognized. Selected significant tectonic and lithological di-scontinuities and the nature and directions of their course were characterized. Special attention was given to regional tectonic zones: the Skrzynno Fault, the Ursynów-Kazimierz fault zone and the Kock zone. The use of ERC methodology made it possible to define the boundaries of lithostratigraphic units in Carboniferous, Devonian, and older formations. The obtained results can be used to assess hydrocarbon accumulation in the area under consideration.","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"2000 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88296886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Physical properties of Devonian limestones from selected deposits in the context of frost resistance 泥盆纪石灰石在抗冻性背景下的物理特性
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/122581
Karol Skowera, Z. Rusin
{"title":"Physical properties of Devonian limestones from selected deposits in the context of frost resistance","authors":"Karol Skowera, Z. Rusin","doi":"10.24425/122581","DOIUrl":"https://doi.org/10.24425/122581","url":null,"abstract":"bulk density, pore filling level and volume absorption. The authors do not correspond compressive strength and resistance to abrasion as this will be the subject of further research.","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"72 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78266887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Suitability evaluation model for the land reclamation of coal mines in the northern foot of tianshan mountain, Xinjiang 新疆天山北麓煤矿土地复垦适宜性评价模型
IF 0.9 4区 工程技术
Gospodarka Surowcami Mineralnymi-Mineral Resources Management Pub Date : 2023-07-20 DOI: 10.24425/gsm.2022.141669
Ruihua Hao, Zizhao Zhang, Xiaoli Guo, Xuebang Huang, Zezhou Guo, Tianchao Liu
{"title":"Suitability evaluation model for the land reclamation of coal mines in the northern foot of tianshan mountain, Xinjiang","authors":"Ruihua Hao, Zizhao Zhang, Xiaoli Guo, Xuebang Huang, Zezhou Guo, Tianchao Liu","doi":"10.24425/gsm.2022.141669","DOIUrl":"https://doi.org/10.24425/gsm.2022.141669","url":null,"abstract":"The suitability levels of land reclamation for eleven sites in two coal mine","PeriodicalId":50416,"journal":{"name":"Gospodarka Surowcami Mineralnymi-Mineral Resources Management","volume":"106 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79289473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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