SPECTRUM

Peter Tyson

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SPECTRUM

机译：光谱

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The trunk was so out of place in that treeless expanse that it seemed to have fallen from the sky. Yet I knew from the geologic formation it lay in that it belonged there just as unassailably as the widely spaced ocotillo and creosote plants that now claimed the semi-arid landscape around it. The stone tree was eroding out of the Aguja Formation, which is roughly 75 million years old. When the tree was alive, it stood in a bald cypress-like forest on the edge of a shallow seaway that extended from the Arctic Ocean to the Gulf of Mexico.

机译：该行李箱在那个穿着小区外的地方似乎从天空中堕落。然而，我从地质形成中那么看，它躺在那里，它属于那里的是，作为现在宣称周围半干旱景观的广泛间隔的ocotillo和杂交植物。石树侵蚀了Aguja形成，大约7500万岁。当树活着时，它在一个浅水海道边缘的秃顶森林中，从北冰洋延伸到墨西哥湾。

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来源
《Sky & Telescope》 |2017年第4期|共1页
作者
Peter Tyson;
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原文格式 PDF
正文语种 eng
中图分类天文学;
关键词
seaway; million; Formation;

机译：海路;百万;形成;

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1. Estimation of the Energy Spectrums of Reflections in Pulse Doppler Weather Radars. Part 3. Statistical Analysis of the Reconstruction Techniques of Continuous Spectrums of the Reflections from Meteorological Objects [J] . D. I. Lekhovytskiy, D. V. Atamanskiy, D. S. Rachkov, Radioelectronics and Communications Systems . 2017,第2期

机译：脉冲多普勒天气雷达反射能谱估计。第3部分。气象对象反射连续谱的重建技术统计分析
2. De-multiplexing the required spectrum in a traffic demand into multiple non-adjacent granular spectrums for dynamic traffic grooming in EON [J] . Majumdar Prasanta, De Tanmay Optical Switching and Networking . 2019,第JULa期

机译：将流量需求中所需的频谱多路分解为多个不相邻的颗粒频谱，以在EON中进行动态流量疏导
3. Neuro-fuzzy based two-stage spectrum allocation scheme to ensure spectrum efficiency in CRN–CSS assisted by spectrum agent [J] . Raman Giri Prasad, Perumal Venkatesan Circuits, Devices & Systems, IET . 2019,第5期

机译：基于神经模糊的两阶段频谱分配方案，以在频谱代理协助下确保CRN–CSS中的频谱效率
4. Spectrum opportunity exploration based on joint spectrum sensing and the spectrum prediction enabled spectrum database [C] . 2016 IEEE MTT-S International Wireless Symposium . 2016

机译：基于联合频谱感知和启用频谱预测的频谱数据库的频谱机会探索
5. Truthful Double Auction Mechanisms for Heterogeneous Spectrums and Spectrum Group-Buying. [D] . Wang, Shu. 2016

机译：异构频谱和频谱购买的真实双拍卖机制。
6. Do Individuals With Autism Spectrum Disorders Help Other People With Autism Spectrum Disorders? An Investigation of Empathy and Helping Motivation in Adults With Autism Spectrum Disorder [O] . Hidetsugu Komeda, Hirotaka Kosaka, Toru Fujioka, 2019

机译：自闭症谱系障碍患者是否对自闭症谱系障碍患者有帮助？成人自闭症谱系障碍患者的移情和帮助动机调查
7. Research on the Applicability of the E Spectrum and PM Spectrum as the First Guess Spectrum of SAR Wave Spectrum Inversion [O] . Yong Wan, Ruozhao Qu, Yongshou Dai, 2020

机译：E谱和PM光谱适用性研究作为SAR波谱反转的第一猜测谱

SPECTRUM

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