机构

• 长春光学精密机械与物... [1]
• 西双版纳热带植物园 [1]
• 昆明植物研究所 [1]
• 海洋研究所 [1]
• 西安光学精密机械研究... [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [3]
• CNKI期刊论文 [1]
• 会议论文 [1]

发表日期

• 2023 [1]
• 2020 [2]
• 2014 [1]
• 2010 [1]

学科主题

• Evolutiona... [1]
• Zoology [1]

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Splitting one species into 22: an unusual tripling of molecular, morphological, and geographical differentiation in the fern family Didymochlaenaceae (Polypodiales) 期刊论文  OAI收割 CLADISTICS, 2023, 卷号: 39, 期号: 4, 页码: 273-292 作者:  Shang,Hui;  Xue,Zhi-Qing;  Liang,Zhen-Long;  Kessler,Michael;  Pollawatn,Rossarin   |  收藏  |  浏览/下载：22/0  |  提交时间：2024/07/22 PHYLOGENETIC ANALYSIS  DEEP RELATIONSHIPS  RAPID RADIATION  EVOLUTION  GENUS  CLASSIFICATION  BIOGEOGRAPHY  HISTORY  DIVERSIFICATION  PARSIMONY   Complete mitochondrial genomes of two deep-sea pandalid shrimps, Heterocarpus ensifer and Bitias brevis:insights into the phylogenetic position of Pandalidae(Decapoda: Caridea) CNKI期刊论文  OAI收割 2020 作者:  SUN Shao'e;  CHENG Jiao;  SUN Song;  SHA Zhongli   |  收藏  |  浏览/下载：1/0  |  提交时间：2024/12/18 Pandalidae  deep sea  mitochondrial genome  gene order  phylogenetic relationships   A deep hashing technique for remote sensing image-sound retrieval 期刊论文  OAI收割 Remote Sensing, 2020, 卷号: 12, 期号: 1 作者:  Chen, Yaxiong;  Lu, Xiaoqiang   |  收藏  |  浏览/下载：48/0  |  提交时间：2020/03/12 cross-modal retrieval  deep hash codes  semantic similarity relationships  remote sensing   Animal Phylogeny and Its Evolutionary Implications 期刊论文  OAI收割 ANNUAL REVIEW OF ECOLOGY, EVOLUTION, AND SYSTEMATICS, VOL 45, 2014, 卷号: 45, 期号: x, 页码: 371-+ Dunn, Casey W.; Giribet, Gonzalo; Edgecombe, Gregory D.; Hejnol, Andreas 收藏  |  浏览/下载：33/0  |  提交时间：2016/05/12 CTENOPHORE MNEMIOPSIS-LEIDYI  DEEP MOLLUSCAN RELATIONSHIPS  18S RIBOSOMAL DNA  MITOCHONDRIAL GENOMES  METAZOAN PHYLOGENY  BILATERIAN ANIMALS  NERVOUS SYSTEMS  PHYLUM  ORIGIN  PLATYHELMINTHES   A design of beam shaping unit for 193nm lithography illumination system using angular spectrum theory (EI CONFERENCE) 会议论文  OAI收割 6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China 作者:  Zhao Y.;  Zhang W.;  Zhang W.;  Li S.;  Gong Y. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 Off-axis illumination (OAI) technology is widely used to enhance resolution for deep ultraviolet lithography. The realizing methods of OAI include geometrical optics method and physical optics method. However  the former has the disadvantage of weak intensity distribution controlling ability  and the latter introduces simulation errors evidently when dealing with near field diffraction propagation. A diffractive optical element (DOE) designing method using plane wave angular spectrum theory is presented in this paper. Several kinds of OAI modes at near field away from DOE can be realized  and simulation errors and the size of illuminator are also reduced. According to studying the relationships of the sampling point distance of DOE  light beam propagation distance  and the structure of the beam shaping unit  a method of determining the designing parameters is discussed. Using this method  several illumination modes are realized  and simulation results show that all diffraction efficiencies reach up to 84%. The method of DOE manufacturing is analyzed at last  and it is proven to be feasible. 2010 SPIE.