Pub Date : 2019-12-01Epub Date: 2019-11-19DOI: 10.1107/S2059798319010179
Madhumati Sevvana, Michael Ruf, Isabel Usón, George M Sheldrick, Regine Herbst-Irmer
In contrast to twinning by merohedry, the reciprocal lattices of the different domains of non-merohedral twins do not overlap exactly. This leads to three kinds of reflections: reflections with no overlap, reflections with an exact overlap and reflections with a partial overlap of a reflection from a second domain. This complicates the unit-cell determination, indexing, data integration and scaling of X-ray diffraction data. However, with hindsight it is possible to detwin the data because there are reflections that are not affected by the twinning. In this article, the successful solution and refinement of one mineral, one organometallic and two protein non-merohedral twins using a common strategy are described. The unit-cell constants and the orientation matrices were determined by the program CELL_NOW. The data were then integrated with SAINT. TWINABS was used for scaling, empirical absorption corrections and the generation of two different data files, one with detwinned data for structure solution and refinement and a second one for (usually more accurate) structure refinement against total integrated intensities. The structures were solved by experimental phasing using SHELXT for the first two structures and SHELXC/D/E for the two protein structures; all models were refined with SHELXL.
与并合孪晶不同的是，非立体孪晶的不同晶域的倒易点阵并不完全重叠。这导致了三种反射：无重叠反射、完全重叠反射和部分重叠来自第二畴的反射。这使得 X 射线衍射数据的单元尺寸确定、索引、数据整合和缩放变得复杂。不过，事后看来，由于有些反射不受孪晶的影响，因此可以对数据进行分离。本文介绍了使用一种通用策略成功求解和提炼一种矿物、一种有机金属和两种蛋白质非正交孪晶的过程。单元常量和取向矩阵由 CELL_NOW 程序确定。然后用 SAINT 对数据进行整合。TWINABS 用于缩放、经验吸收校正和生成两个不同的数据文件，一个是用于结构求解和细化的去翅数据文件，另一个是用于（通常更精确的）根据总集成强度进行结构细化的数据文件。对前两个结构使用 SHELXT 进行实验相位求解，对两个蛋白质结构使用 SHELXC/D/E 进行实验相位求解；所有模型均使用 SHELXL 进行细化。
{"title":"Non-merohedral twinning: from minerals to proteins.","authors":"Madhumati Sevvana, Michael Ruf, Isabel Usón, George M Sheldrick, Regine Herbst-Irmer","doi":"10.1107/S2059798319010179","DOIUrl":"10.1107/S2059798319010179","url":null,"abstract":"<p><p>In contrast to twinning by merohedry, the reciprocal lattices of the different domains of non-merohedral twins do not overlap exactly. This leads to three kinds of reflections: reflections with no overlap, reflections with an exact overlap and reflections with a partial overlap of a reflection from a second domain. This complicates the unit-cell determination, indexing, data integration and scaling of X-ray diffraction data. However, with hindsight it is possible to detwin the data because there are reflections that are not affected by the twinning. In this article, the successful solution and refinement of one mineral, one organometallic and two protein non-merohedral twins using a common strategy are described. The unit-cell constants and the orientation matrices were determined by the program CELL_NOW. The data were then integrated with SAINT. TWINABS was used for scaling, empirical absorption corrections and the generation of two different data files, one with detwinned data for structure solution and refinement and a second one for (usually more accurate) structure refinement against total integrated intensities. The structures were solved by experimental phasing using SHELXT for the first two structures and SHELXC/D/E for the two protein structures; all models were refined with SHELXL.</p>","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"3 1","pages":"1040-1050"},"PeriodicalIF":2.6,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6889912/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78498951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-01DOI: 10.1016/J.JAG.2013.12.003
M. Mirzaie, R. Darvishzadeh, A. Shakiba, A. Matkan, C. Atzberger, A. Skidmore
{"title":"Corrigendum to “Comparative analysis of different uni- and multi-variate methods for estimation of vegetation water content using hyper-spectral measurements” [Int. J. Appl. Earth Observ. Geoinform. 26 (2014) 1–11]","authors":"M. Mirzaie, R. Darvishzadeh, A. Shakiba, A. Matkan, C. Atzberger, A. Skidmore","doi":"10.1016/J.JAG.2013.12.003","DOIUrl":"https://doi.org/10.1016/J.JAG.2013.12.003","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"98 1","pages":"260"},"PeriodicalIF":7.5,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88524381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-09-10DOI: 10.1016/J.JAG.2007.06.005
Jay Gao
{"title":"WITHDRAWN: Impact of GCP distribution on the rectification accuracy of Landsat TM imagery in a coastal zone","authors":"Jay Gao","doi":"10.1016/J.JAG.2007.06.005","DOIUrl":"https://doi.org/10.1016/J.JAG.2007.06.005","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"25 1","pages":"14-22"},"PeriodicalIF":7.5,"publicationDate":"2007-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/J.JAG.2007.06.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54748055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-03-01DOI: 10.3929/ETHZ-A-004657154
E. Baltsavias, Chunsun Zhang
This paper presents a practical system for automated 3-D road network reconstruction from aerial images using knowledge-based image analysis. The system integrates processing of color image data and information from digital spatial databases, extracts and fuses multiple object cues, takes into account context information, employs existing knowledge, rules and models, and treats each road subclass accordingly. The key of the system is the use of knowledge as much as possible to increase success rate and reliability of the results, working in 2-D images and 3-D object space, and use of 2-D and 3-D interaction when needed. Another advantage of the developed system is that it can correctly and reliably handle problematic areas caused by shadows and occlusions. This work is part of a project to improve and update the 1:25,000 vector maps of Switzerland. The system was originally developed to processed stereo images. Recently, it has been modified to work also with single orthoimages. The system has been implemented as a stand-alone software package, and has been tested on a large number of images with different landscape. In this paper, various parts of the developed system are discussed, and the results of our system in the tests conducted independently by our project partner in Switzerland, and the test results with orthoimages in a test site in The Netherlands are presented together with the system performance evaluation.
{"title":"Automated updating of road databases from aerial images","authors":"E. Baltsavias, Chunsun Zhang","doi":"10.3929/ETHZ-A-004657154","DOIUrl":"https://doi.org/10.3929/ETHZ-A-004657154","url":null,"abstract":"This paper presents a practical system for automated 3-D road network reconstruction from aerial images using knowledge-based image analysis. The system integrates processing of color image data and information from digital spatial databases, extracts and fuses multiple object cues, takes into account context information, employs existing knowledge, rules and models, and treats each road subclass accordingly. The key of the system is the use of knowledge as much as possible to increase success rate and reliability of the results, working in 2-D images and 3-D object space, and use of 2-D and 3-D interaction when needed. Another advantage of the developed system is that it can correctly and reliably handle problematic areas caused by shadows and occlusions. This work is part of a project to improve and update the 1:25,000 vector maps of Switzerland. The system was originally developed to processed stereo images. Recently, it has been modified to work also with single orthoimages. The system has been implemented as a stand-alone software package, and has been tested on a large number of images with different landscape. In this paper, various parts of the developed system are discussed, and the results of our system in the tests conducted independently by our project partner in Switzerland, and the test results with orthoimages in a test site in The Netherlands are presented together with the system performance evaluation.","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"6 1","pages":"199-213"},"PeriodicalIF":7.5,"publicationDate":"2005-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70170471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-12-01DOI: 10.1016/J.JAG.2004.08.003
A. Maksud Kamal, S. Midorikawa
{"title":"GIS-based geomorphological mapping using remote sensing data and supplementary geoinformation: A case study of the Dhaka city area, Bangladesh","authors":"A. Maksud Kamal, S. Midorikawa","doi":"10.1016/J.JAG.2004.08.003","DOIUrl":"https://doi.org/10.1016/J.JAG.2004.08.003","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"6 1","pages":"111-125"},"PeriodicalIF":7.5,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/J.JAG.2004.08.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54744004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-05-01DOI: 10.1016/J.JAG.2004.01.002
R. Lemmens
{"title":"GPS : theory, algorithms and applications - by by Guochang Xu. - Berlin etc., Springer, 2003 : book review","authors":"R. Lemmens","doi":"10.1016/J.JAG.2004.01.002","DOIUrl":"https://doi.org/10.1016/J.JAG.2004.01.002","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"5 1","pages":"165-166"},"PeriodicalIF":7.5,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/J.JAG.2004.01.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54742304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/11250009809386788
L. Nagelkerke, F. Sibbing
Abstract The Lake Tana (northern Ethiopia) ichthyofauna is dominated by ‘large’ barbs (Barbus spp., Cyprinidae). Recently, fourteen Bar‐bus morphs have been described. This paper provides evidence that these morphs are indeed biological species. To investigate the hypothesis that disruptive selection on feeding‐related morphological characters was the evolutionary driving force of speci‐ation, an ecomorphological analysis, investigating the quantitative relationships between morphology and feeding abilities on a number of aquatic food types was investigated. The analysis accurately predicted the potential trophic niches of the Lake Tana barbs and supported the disruptive selection hypothesis. Finally, a hypothetical evolutionary scenario is presented in which disruptive selection led to initial morphological differentiation, and spatial and temporal spawning segregation stabilized the genetic differences among the morphs, resulting in speciation.
{"title":"The 'Barbus' intermedius species flock of Lake Tana (Ethiopia) I - The ecological and evolutionary significance of morphological diversity","authors":"L. Nagelkerke, F. Sibbing","doi":"10.1080/11250009809386788","DOIUrl":"https://doi.org/10.1080/11250009809386788","url":null,"abstract":"Abstract The Lake Tana (northern Ethiopia) ichthyofauna is dominated by ‘large’ barbs (Barbus spp., Cyprinidae). Recently, fourteen Bar‐bus morphs have been described. This paper provides evidence that these morphs are indeed biological species. To investigate the hypothesis that disruptive selection on feeding‐related morphological characters was the evolutionary driving force of speci‐ation, an ecomorphological analysis, investigating the quantitative relationships between morphology and feeding abilities on a number of aquatic food types was investigated. The analysis accurately predicted the potential trophic niches of the Lake Tana barbs and supported the disruptive selection hypothesis. Finally, a hypothetical evolutionary scenario is presented in which disruptive selection led to initial morphological differentiation, and spatial and temporal spawning segregation stabilized the genetic differences among the morphs, resulting in speciation.","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"1 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/11250009809386788","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59763759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1995-01-01DOI: 10.1016/S0166-1116(06)80181-0
A. Veldkamp, L. Fresco
{"title":"Modelling land use dynamics by integrating biophysical and human dimensions (CLUE) Costa Rica 1973–1984.","authors":"A. Veldkamp, L. Fresco","doi":"10.1016/S0166-1116(06)80181-0","DOIUrl":"https://doi.org/10.1016/S0166-1116(06)80181-0","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"1997 1","pages":"1413-1416"},"PeriodicalIF":7.5,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0166-1116(06)80181-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"55997809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1016/j.jag.2023.103309
Jianxun Wang, Xin Chen, Weicheng Jiang, L. Hua, Junyi Liu, H. Sui
{"title":"PVNet: A novel semantic segmentation model for extracting high-quality photovoltaic panels in large-scale systems from high-resolution remote sensing imagery","authors":"Jianxun Wang, Xin Chen, Weicheng Jiang, L. Hua, Junyi Liu, H. Sui","doi":"10.1016/j.jag.2023.103309","DOIUrl":"https://doi.org/10.1016/j.jag.2023.103309","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"30 1","pages":"103309"},"PeriodicalIF":7.5,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54752407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1016/j.jag.2023.103289
L. Alonso, J. Picos, J. Armesto
{"title":"Automatic forest change detection through a bi-annual time series of satellite imagery: Toward production of an integrated land cover map","authors":"L. Alonso, J. Picos, J. Armesto","doi":"10.1016/j.jag.2023.103289","DOIUrl":"https://doi.org/10.1016/j.jag.2023.103289","url":null,"abstract":"","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"1 1","pages":"103289"},"PeriodicalIF":7.5,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54752361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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