搜索结果: 1-15 共查到“理学 shrimp”相关记录273条 . 查询时间(0.098 秒)
A new, NSF-supported study published in the Journal of Comparative Neurology provides insight into how the small brains of mantis shrimp -- fierce predators with keen vision -- may process and integr...
Crabs, lobsters and shrimp now have a family tree dating 500 million years（图）
Crabs lobsters shrimp family tree dating 500 million years
2019/10/30
Researchers have for the first time traced the roots of crabs, lobsters and shrimp to create the family tree of crustaceans people love to eat.The tree shows the 450-million-year evolution of these 10...
Mantis Shrimp Size Each Other Up Before Ceding A Fight（图）
Mantis Shrimp Size Each Other Before Ceding A Fight
2018/2/1
To a mantis shrimp, walking away from a fight doesn’t mean being a wimp. It means recognizing who they’re up against and knowing when to bail rather than drag out a doomed battle, Duke University rese...
Smart boxers bind their hands with strips of cloth to avoid injury when they pack a punch. Millions of years ago, the “smasher” mantis shrimp, one of nature’s feistiest predators, figured out a simila...
鞍本是华北克拉通最为重要的BIF铁矿集中区之一，BIF赋存于鞍山群表壳岩中.通过对广泛分布的鞍山群表壳岩的12个样品进行锆石SHRIMP U-Pb定年，大都获得2.50～2.55Ga岩浆锆石年龄，一些岩石中存在2.7～3.5Ga碎屑锆石或外来锆石.一些东北部(东部)岩石记录了新太古代晚期-古元古代早期变质锆石年龄.结合前人研究成果，可得出如下结论：(1)鞍本地区广泛分布的鞍山群含BIF表壳岩形成时...
Mantis shrimp-inspired camera enables glimpse into hidden world（图）
Mantis shrimp inspired camera enables glimpse hidden world
2017/10/26
By mimicking the eye of the mantis shrimp, Illinois researchers have developed an ultra-sensitive camera capable of sensing both color and polarization. The bioinspired imager can potentially improve ...
Oh, snap!What snapping shrimp sound patterns may tell us about reef ecosystems
snapping shrimp sound patterns reef ecosystems
2016/1/22
If you put a microphone underwater near the oyster reef in North Carolina’s Pamlico Sound, you can hear it: a crisp, crackling noise that sounds like someone just dumped a ton of Rice Krispies into th...
If you put a microphone underwater near the oyster reef in North Carolina’s Pamlico Sound, you can hear it: a crisp, crackling noise that sounds like someone just dumped a ton of Rice Krispies into th...
Intraspecific Genetic Diversity in the Marine Shrimp Penaeus vannamei: Multiple Polymorphic Elongation Factor-1a Loci Revealed by Intron Sequencing
EPIC-PCR nuclear introns shrimp concerted evolution
2015/12/17
Intron sequences from the elongation factor-1a (EF1a) gene from the marine shrimp Penaeus
vannamei reveal extensive variation even among inbred populations of hatchery-raised shrimp. Among 44
indivi...
Advanced composites may borrow designs from deep-sea shrimp
Advanced composites designs deep-sea shrimp
2015/8/4
New research is revealing details about how the exoskeleton of a certain type of deep-sea shrimp allows the animal to survive scalding hot waters in hydrothermal vents thousands of feet under water.“A...
Rapid Origin Determination of the Northern Mauxia Shrimp (Acetes chinensis) Based on Allele Specific Polymerase Chain Reaction of Partial Mitochondrial 16S rRNA Gene
Allele-specific Polymerase Chain Reaction Origin Identification
2016/5/18
Acetes chinensis is an economically important shrimp that belongs to the Sergestidae family; following fermentation, A. chinensis′ economic value, however, is low in China, and much of the catch in Ch...
How Mantis Shrimp Evolved Many Shapes with Same Powerful Punch（图）
Mantis Shrimp Evolved Many Shapes Same Powerful Punch
2015/3/4
The miniweight boxing title of the animal world belongs to the mantis shrimp, a cigar-sized crustacean whose front claws can deliver an explosive 60-mile-per-hour blow akin to a bullet leaving the bar...
太行山北段王安镇杂岩体花岗闪长岩、二长花岗岩、髫髻山组火山岩-安山岩精细SHRIMP U-Pb定年和Hf同位素地球化学研究表明:花岗闪长岩体形成于135.7±1.3Ma，二长花岗岩体形成于133.7±1.1Ma，安山岩形成于138.89±0.9Ma，与杂岩体内基性侵入岩（138Ma）具有相似的形成年龄。花岗闪长岩的锆石εHf（t）值为-21.81~-16.09，相应tDMC为2.2~2.6Ga;二...
本文报道了腾冲曲石地区英安岩测年结果和该区火山岩样品的地球化学特征。英安岩(TC7)的SHRIMP锆石U-Pb年龄为0.41±0.01Ma(MSWD=1.18),属于中更新世,是迄今在国内测得的最年轻的高精度锆石U-Pb年龄。该区的火山岩具有高钾钙碱性的特点,为一套粗面玄武岩-玄武粗安岩-粗安岩-粗面岩以及玄武岩-安山岩-英安岩岩石组合。岩石富集LILE、LREE,相对亏损Nb、Ta、Ti等高场强...
NOTE TO REPORTERS: There are mantis shrimp in the lab of David Kisailus that can be photographed and filmed.RIVERSIDE, Calif. (www.ucr.edu) — Inspired by the fist-like club of a mantis shrimp, a team ...