搜索结果: 1-15 共查到“理学 Gemini”相关记录35条 . 查询时间(0.05 秒)
将Gemini型可聚合阳离子表面活性剂单体[顺丁烯二酸二乙酯撑基双（辛烷基）二甲基氯/溴化铵（G8-2-8）、顺丁烯二酸二乙酯撑基双（十二烷基二甲基氯/溴化铵）（G12-2-12）、顺丁烯二酸二乙酯撑基双（十六烷基二甲基氯/溴化铵）（G16-2-16）]引入聚砜（PSF）聚合物的氯仿铸膜液中，
Gemini对PVA分散螺吡喃有机凝胶薄膜光致变色行为的调控
光致变色 螺吡喃 Gemini表面活性剂 聚乙烯醇 褪色速率 耐疲劳性
2019/1/16
通过共溶剂-乳化-溶剂挥发法制备了聚乙烯醇（PVA）分散螺吡喃（SP）光致变色有机凝胶薄膜（PDPG-SP），采用双子型表面活性剂六亚甲基-1，6-双十二烷基二甲基溴化铵（Gemini）调控聚合物/有机凝胶界面相互作用，系统研究了薄膜光致变色行为、褪色行为、微观结构形貌、力学性能及耐疲劳性能.结果表明，
Gemini Tracks Distant Star Cluster with Adaptive Optics
Gemini Distant Star Cluster Adaptive Optics
2017/7/20
We present a proper motion measurement for the halo globular cluster Pyxis, using HST/ACS data as the first epoch, and GeMS/GSAOI Adaptive Optics data as the second, separated by a baseline of ～ 5 yea...
Gemini Tracks Collapse of Io's Atmosphere During Frigid Eclipses
Gemini Collapse Io's Atmosphere Frigid Eclipses
2016/8/11
A Southwest Research Institute-led team has documented atmospheric changes on Io, Jupiter’s volcanically active satellite, as the giant planet casts its shadow over the moon’s surface during daily ecl...
A team of Australian researchers used two Maunakea-based observatories – Gemini North and W. M. Keck Observatory – to discover why some galaxies are clumpy rather than spiral in shape and it appears t...
中国科学院紫金山天文台研究者利用紫金山天文台青海观测站13.7米毫米波射电望远镜对Gemini分子云进行了CO（J=1-0）分子谱线的观测。根据该分子云的部分区域的通道积分图（图1，其中红色的叉表示核候选体的位置）推断分子云核候选体的较大速度差值由像碰撞、紊乱磁场一样的随机过程触发。从线宽的分析（图2）则得到了非热致宽在该分子云中占据主导地位的结论。至于恒星形成，位力质量和LTE质量的关系（图3）...
Stunning exoplanet images and spectra from the first year of science operations with the Gemini Planet Imager (GPI) were featured today in a press conference at the 225th meeting of the American Astro...
A compelling new image from Gemini Observatory peers into the heart of a group of galaxies (VV166) traveling through space together. The variety of galactic forms range from a perfect spiral, to featu...
NOAO/Gemini: Sakurai's Object: Stellar evolution in real time
NOAO/Gemini Sakurai's Object Stellar evolution real time
2014/4/16
Stellar lifetimes are measured in billions of years, so changes in their appearance rarely take place on a human timescale. Thus an opportunity to observe a star passing from one stage of life to anot...
Gemini: Graph estimation with matrix variate normal instances
Graphical model selection covarianc eestimation inverse covariance estimation Graphical Lasso,Matrix variate normal distribution
2012/11/23
Undirected graphs can be used to describe matrix variate distributions. In this paper, we develop new methods for estimating the graphical structures and underlying parameters, namely, the row and col...
Feeding and feedback in the active nucleus of Mrk 1157 probed with Gemini NIFS
galaxies: individual (Mrk 1157) – galaxies: individual (NGC591) – galaxies:Seyfert – galaxies: ISM – infrared: galaxies – galaxies: kinematics and dynamics
2011/10/8
We have mapped the stellar and gaseous kinematics, as well as the emission-line flux distributions and ratios, from the inner 450pc radius of Mrk1157, using 2D near-IR spectra obtained with the Gemini...
New Cataclysmic Variable 1RXS J073346.0+261933 in Gemini
stars cataclysmic variables X-ray sources.
2011/9/29
In course of the search for the optical identifications associated with ROSAT X-ray sources we have found a highly variable object with the very unusual long-term behavior, color indices and high X-ra...
Gemini GMOS spectroscopy of HeII nebulae in M33
stars atmospheres — stars Wolf-Rayet — ISM HII regions — ISM lines and bands — galaxies individual (M33)—galaxies
2010/11/15
We have carried out a narrow-band survey of the Local Group galaxy, M33, in the HeII λ4686 emission line, to identify HeII nebulae in this galaxy. With spectroscopic follow-up observations, we confirm...
Gemini/GMOS Spectroscopy of 26 Strong Lensing Selected Galaxy Cluster Cores
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2011/1/4
We present results from a spectroscopic program targeting 26 strong lensing cluster cores that were visually identified in the Sloan Digital Sky Survey (SDSS) and the Second Red-Sequence Cluster Surve...
TPPS和Gemini表面活性剂的复合膜及其手性的研究
Gemini表面活性剂 多层膜 手性
2010/1/12
研究了一种新的gemini表面活性剂(C12H24-α,ω-(C12H25N＋(CH3)2Br－)2, （简写为C12-C12-C12）和TPPS在气液界面上形成的复合膜及其手性.实验发现,单独C12-C12-C12不能在纯水表面形成稳定的单分子膜，但当亚相中存在TPPS时，可形成稳定的单分子膜.通过水平提拉法将复合膜转移到固体基板上，发现在适当的pH值条件下，TPPS可在复合膜中形成J-聚集体，...