Atmospheric Environment (1967)最新文献

筛选
英文 中文
Rates of air pollution induced surface recession and material loss for a cathedral in belgium 比利时一座大教堂的空气污染率导致地面衰退和材料损失
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90119-4
E. Roekens, R. van Grieken
{"title":"Rates of air pollution induced surface recession and material loss for a cathedral in belgium","authors":"E. Roekens,&nbsp;R. van Grieken","doi":"10.1016/0004-6981(89)90119-4","DOIUrl":"10.1016/0004-6981(89)90119-4","url":null,"abstract":"<div><p>Runoff water samples were taken at the St. Rombout's Cathedral (Mechelen, Belgium), which was constructed with sandy limestones of Balegem and Gobertingen. Gypsum appeared to be the principal deterioration compound. The mean annual surface recession from the cathedral was calculated to be around 20 μm. Yearly several tons of stone material are flushed away from the cathedral with the rain water.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Pages 271-277"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90119-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833444","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: 23
Determination of elemental concentrations in small-mass particulate matter aircraft samples by x-ray fluorescence 用x射线荧光法测定飞机样品中小质量颗粒物质的元素浓度
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90531-3
H. Sievering , C. Crouch , L. Gunter , D. Wellman , J. Boatman
{"title":"Determination of elemental concentrations in small-mass particulate matter aircraft samples by x-ray fluorescence","authors":"H. Sievering ,&nbsp;C. Crouch ,&nbsp;L. Gunter ,&nbsp;D. Wellman ,&nbsp;J. Boatman","doi":"10.1016/0004-6981(89)90531-3","DOIUrl":"10.1016/0004-6981(89)90531-3","url":null,"abstract":"<div><p>Aircraft sampling of atmospheric particulate matter often implies small mass collection for subsequent analysis, especially when free tropospheric samples are considered. We present here results of the use of an X-ray fluorescence instrument, specifically designed for small-mass samples, in the determination of free tropospheric and boundary layer elemental concentrations. Based on 1- to 2-h-long samples, ng m<sup>−3</sup> ambient air concentrations of Ti, Cr, Mn, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, Mo, Cd and Pb may be determined with uncertainties of 5–15% in polluted and even some rural boundary layer samples. In free tropospheric and remote boundary layer samples, concentrations may be determined for many of these elements but with larger uncertainties.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 9","pages":"Pages 2059-2062"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90531-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52836192","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: 4
Indoor air: Spatial variations of chlorinated pesticides 室内空气:氯代农药的空间变化
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90532-5
David J. Anderson, Ronald A. Hites
{"title":"Indoor air: Spatial variations of chlorinated pesticides","authors":"David J. Anderson,&nbsp;Ronald A. Hites","doi":"10.1016/0004-6981(89)90532-5","DOIUrl":"10.1016/0004-6981(89)90532-5","url":null,"abstract":"<div><p>The concentrations of two classes of chlorinated pesticides were measured in various locations within four homes. The prevalent compounds were chlorinated derivatives of cyclopentadiene which had been used as termiticides. These compounds were found in basement areas at higher concentrations than in upstairs areas of the homes. Another class of chlorinated pesticide was represented by chlorpyrifos; its spatial profile was consistent with its application in upstairs areas.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 9","pages":"Pages 2063-2066"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90532-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52836209","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: 5
4829911 Pollution-free, resource recovery, garbage disposal/fuel burning plant 4829911无公害、资源回收、垃圾处理/燃料燃烧厂
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90208-4
Jay P Nielson
{"title":"4829911 Pollution-free, resource recovery, garbage disposal/fuel burning plant","authors":"Jay P Nielson","doi":"10.1016/0004-6981(89)90208-4","DOIUrl":"10.1016/0004-6981(89)90208-4","url":null,"abstract":"","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 10","pages":"Page i"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90208-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834604","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
Geochemistry of organic and inorganic ions of late winter arctic aerosols 冬末北极气溶胶有机和无机离子的地球化学特征
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90252-7
Shao-Meng Li , John W. Winchester
{"title":"Geochemistry of organic and inorganic ions of late winter arctic aerosols","authors":"Shao-Meng Li ,&nbsp;John W. Winchester","doi":"10.1016/0004-6981(89)90252-7","DOIUrl":"10.1016/0004-6981(89)90252-7","url":null,"abstract":"<div><p>In order to examine possible natural as well as anthropogenic aerosol ionic components in the Arctic troposphere, we have measured the concentrations of 12 organic and inorganic ions in late winter Arctic aerosols at Barrow, Alaska, sampled as separated coarse and fine fractions. Inorganic ion concentrations are similar to previous data reported from the Arctic. The organic anion methanesulfonate (MSA), in total coarse + fine, averages 0.12 ± 0.02 nmol m<sup>−3</sup>. High levels of formate (Fo <sup>−</sup>) and acetate (Ac<sup>−</sup>) and traces of propionate (Pp<sup>−</sup>) and pyruvate (Py<sup>−</sup>) are found, which altogether account for 20% of the total aerosol mass. Total concentrations, as mean ± S.E. nmol m<sup>−3</sup>, are (Fo<sup>−</sup>) 5.3± 0.7, (Ac<sup>−</sup>) 12.4 ± 2.2, (Pp<sup>−</sup>) 0.3±0.1, and (Py<sup>−</sup>) 0.1 ± 0.04. Internal relationships among the carboxylic acid anions suggest emissions from natural vegetation. Lacking local sources during winter, these organic anions are likely to have come from lower latitudes as acid vapors that condensed with gaseous NH<sub>3</sub> into aerosols in the cold Arctic.</p><p>Four aerosol types, evidenced by seven principal components in the coarse and fine aerosol fractions of 69 12-h samples, are found by absolute principal component analysis (APCA). The most prominent type is a contaminated sea salt, apparently transported to the Arctic after scavenging combustion products. The second contains carboxylic acid anions, such as could have resulted from co-condensation with NH<sub>3</sub> of organic acid vapors from natural sources at lower latitudes. The third is a marine aerosol component containing most of the MSA, Br<sup>−</sup> and NO<sup>−</sup><sub>3</sub>, as well as small amounts of carboxylic acid anions and some sea salt, and may be a collection of products from gas phase oxidation of precursors. Finally, a fine non-sea salt sulfate (nssSO<sup>2−</sup><sub>4</sub>) component is found that may have come from SO<sub>2</sub> conversion in air. Most components have good charge balance of the measured ions as indicated by anion/cation ratios near unity. The ratios reflect approximate acid-base neutralization in the components and indicate aged aerosol systems with long atmospheric residence times.</p><p>Viewing similar components in coarse and fine fractions together, about 10% of the carboxylic acid anions are associated with pollutants in aerosol type 1. Type 2 accounts for 80% of Fo<sup>−</sup>and 60% of Ac<sup>−</sup>. Type 3 accounts for 18% of Fo<sup>−</sup> and 10% of Ac<sup>−</sup>. Thus, the carboxylic acid anions appear to be mostly natural, with more than 90% of Fo<sup>−</sup> and 70% of Ac<sup>−</sup> in types 2 and 3. In coarse aerosols viewed separately, 67% of nssSO<sup>2−</sup><sub>4</sub> is in the contaminated sea salt. In fine aerosols, 52% of nssSO<sup>2−</sup><sub>4</sub> is in a separate SO<sup>2−</sup><sub>4</sub> component which may be forme","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 11","pages":"Pages 2401-2415"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90252-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834712","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: 62
Absorption of NH3 and SO2 during activation of atmospheric cloud condensation nuclei 大气云凝结核活化过程中NH3和SO2的吸收
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90565-9
M.J. Rood, R.M. Currie
{"title":"Absorption of NH3 and SO2 during activation of atmospheric cloud condensation nuclei","authors":"M.J. Rood,&nbsp;R.M. Currie","doi":"10.1016/0004-6981(89)90565-9","DOIUrl":"10.1016/0004-6981(89)90565-9","url":null,"abstract":"<div><p>A numerical model is presented that considers the micro-physics and chemistry of cloud condensation nuclei (CCN) as the nuclei are transported vertically from the base of a cloud. The CCN are initially composed of mixtures of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>, H<sub>2</sub>SO<sub>4</sub> and H<sub>2</sub>O and are in equilibrium with gaseous SO<sub>2</sub> and NH<sub>3</sub> concentrations. The model incorporates liquid phase oxidation of S(IV) to S(VI) during adiabatic lifting of the CCN. Simultaneous absorption of SO<sub>2</sub> and NH<sub>3</sub> between the cloud droplets and gaseous dispersion medium is also considered. The model also evaluates whether the droplets are in chemical equilibrium with respect to gaseous SO<sub>2</sub> and NH<sub>3</sub> concentrations. Results from the model indicate that oxidation of S(IV) increases cloud droplet acidity during activation of the CCN. Large cloud droplets also exhibit gas phase mass transfer limitations with respect to SO<sub>2</sub> and NH<sub>3</sub>. pH values of the resulting cloud droplet size distribution range over 3 pH units within the cloud at typical atmospheric conditions.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 12","pages":"Pages 2847-2854"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90565-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52836718","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: 2
Light hydrocarbons in the Norwegian Arctic 挪威北极地区的轻烃
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90258-8
Øystein Hov, Norbert Schmidbauer, Michael Oehme
{"title":"Light hydrocarbons in the Norwegian Arctic","authors":"Øystein Hov,&nbsp;Norbert Schmidbauer,&nbsp;Michael Oehme","doi":"10.1016/0004-6981(89)90258-8","DOIUrl":"10.1016/0004-6981(89)90258-8","url":null,"abstract":"<div><p>From late February to mid April 1985 pressurized air samples were collected 3 times per week on weathership M in the North Atlantic and in Ny-Ålesund on Svalbard. The samples were analyzed for individual light hydrocarbons C<sub>2</sub>-C<sub>6</sub>, and it was found that the average sum of C<sub>2</sub>-C<sub>6</sub> hydrocarbons was about 35 ppbC in Ny-Ålesund and 31 ppbC on ship M, with the least reactive species ethane and propane as the most abundant ones.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 11","pages":"Pages 2471-2482"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90258-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834798","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: 41
Seasonal variations in sulfate, nitrate and chloride in the greenland ice sheet: Relation to atmospheric concentrations 格陵兰冰盖中硫酸盐、硝酸盐和氯化物的季节变化:与大气浓度的关系
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90259-X
C.I. Davidson, J.R. Harrington, M.J. Stephenson, M.J. Small, F.P. Boscoe, R.E. Gandley
{"title":"Seasonal variations in sulfate, nitrate and chloride in the greenland ice sheet: Relation to atmospheric concentrations","authors":"C.I. Davidson,&nbsp;J.R. Harrington,&nbsp;M.J. Stephenson,&nbsp;M.J. Small,&nbsp;F.P. Boscoe,&nbsp;R.E. Gandley","doi":"10.1016/0004-6981(89)90259-X","DOIUrl":"10.1016/0004-6981(89)90259-X","url":null,"abstract":"<div><p>Samples from three snowpits near Dye 3 in South Greenland have been used to study seasonal variations in contaminant transport from the atmosphere to the Ice Sheet. The snowpits cover the years 1982–1987. The samples have been dated by comparing δ<sup>18</sup>O values with meteorological data from Dye 3. Airborne concentrations of SO<sup>2−</sup><sub>4</sub> over the Ice Sheet have been estimated for the dates corresponding to each snowpit sample by statistically analyzing data from several air monitoring stations throughout the Arctic, and computing average values from the appropriate stations. Seasonal variations in concentrations in air, concentrations in snow, and mass-basis scavenging ratios (concentration in snow divided by concentration in air) have been identified. Results indicate that concentrations of SO<sup>2−</sup><sub>4</sub>in the air show a strong peak in late February, resulting from long-range transport of mid-latitude anthropogenic emissions, while those in the snow show a broad peak in January, February and March with smaller seasonal variation overall. The smaller variation in the snow is attributed in part to the effect of riming, which results in more efficient scavenging during warm weather when airborne concentrations are low. The importance of riming is also supported by the annual cycle in scavenging ratio which peaks in mid-summer coincident with maximum temperatures. In agreement with previous estimates, dry deposition appears to account for 10–30% of the total SO<sup>2−</sup><sub>4</sub> in the snow. Concentrations of NO<sup>−</sup><sub>3</sub> in the snow show a strong peak in summer; natural material from the stratosphere as well as anthropogenic emissions transported from the mid-latitudes may be responsible. Concentrations of Cl<sup>−</sup> in the snow are maximum in January, with relatively high concentrations during October through March and a smaller peak in July. The winter peak is believed to reflect long-range transport (LRT) of marine aerosol from north Atlantic storms, while the summer peak is attributed to seaspray from nearby coastal Greenland. Riming also may influence the seasonal variations in NO<sup>−</sup><sub>3</sub> and Cl<sup>−</sup> in the snow.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 11","pages":"Pages 2483-2493"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90259-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834811","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: 87
An anticyclonic point of view on low-level tropospheric long-range transport 对流层低层远程输送的反气旋观点
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90261-8
Wolfgang E. Raatz
{"title":"An anticyclonic point of view on low-level tropospheric long-range transport","authors":"Wolfgang E. Raatz","doi":"10.1016/0004-6981(89)90261-8","DOIUrl":"10.1016/0004-6981(89)90261-8","url":null,"abstract":"<div><p>Research on Arctic haze has provided an example when anticyclones may play a dominant role in carrying out low-level tropospheric long-range transport. This dominant role of anticyclones in transporting Arctic haze may be the result of the unique geographic and climatological situation existing during winter/spring in which both the huge Eurasian continent and the adjacent ice-covered Arctic Ocean tend to be regions where anticyclones form and exist over long periods of the winter and spring seasons. It is assumed that the seasonal variation of transport mechanisms provided by anticyclones is the primary cause for the seasonal variation of Arctic haze. Centers of anticyclones are the regions where air masses form and obtain their characteristics, both meteorological and chemical, due to the aerosols and gases released into the air. Transport within an air flow along the edges of quasi-stationary anticyclones will remain under stable atmospheric conditions, hence, dilution, lifting and removal of aerosols and gases will be less compared to a transport within the influence of a cyclonic pressure system. According to the concept of isentropic flow, anticyclones may dominate only low-level transport, whereas cyclones may be more important in controlling transport at upper tropospheric levels.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 11","pages":"Pages 2501-2504"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90261-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834831","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: 23
Air pollution legislation and regulation in the european community: A review essay 欧洲共同体的空气污染立法和管制:一篇综述文章
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90578-7
Timothy O'Riordan
{"title":"Air pollution legislation and regulation in the european community: A review essay","authors":"Timothy O'Riordan","doi":"10.1016/0004-6981(89)90578-7","DOIUrl":"10.1016/0004-6981(89)90578-7","url":null,"abstract":"<div><p>Pollution control generally is moving from the specific to the general, from the local to the international, from reactive measures to foresight management, from emission based to technology forced, and from single media managed to integrated. These are trends only, but there is a persistence behind these trends. This suggests that air pollution legislation and regulation will be driven more by international protocols and commitments than by national interests. Since enforcement will remain primarily a national responsibility because individual countries vary in their enthusiasm to meet externally imposed air pollution legislation, the weak link in the regulatory chain may well prove to be practical implementation of legislative intent.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 2","pages":"Pages 293-306"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90578-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52836830","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: 18
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