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New black hole images reveal a glowing, fluffy ring and a high-speed jet（图）
黑洞图像 高速喷气机 等离子体物理学
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2023/6/9
In 2017, astronomers captured the first image of a black hole by coordinating radio dishes around the world to act as a single, planet-sized telescope. The synchronized network, known collectively as ...
Mating causes ‘jet lag’ in female fruit flies, changing behavior（图）
交配 雌性果蝇 时差 生物钟 基因表达
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2023/5/17
A seminal fluid protein transferred from male to female fruit flies during mating changes the expression of genes related to the fly’s circadian clock, an innovative technique has revealed.
Mysteriously bright flash is a black hole jet pointing straight toward Earth, astronomers say（图）
黑洞生长 超大质量黑洞 兹威基瞬态设施 天文观测
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2023/6/9
Earlier this year, astronomers were keeping tabs on data from the Zwicky Transient Facility, an all-sky survey based at the Palomar Observatory in California, when they detected an extraordinary flash...
Tuning in to invisible waves on the JET tokamak（图）
JET托卡马克 聚变实验 天线诊断
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2023/6/9
Research scientist Alex Tinguely is readjusting to Cambridge and Boston.
Low-level jet models inform US offshore wind development
低层 喷气式飞机 海上风电开发
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2023/5/23
With the federal government planning to hold the largest sale of offshore wind farm leases in the nation’s history, a new Cornell study could help inform the development of offshore wind farms by prov...
High-speed camera captures a water jet’s splashy impact as it pierces a droplet（图）
高速摄像机 水射流 注射药物
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2023/6/19
Squirting a jet of water through a drop of liquid may sound like idle fun, but if done precisely, and understood thoroughly, the splashy exercise could help scientists identify ways to inject fluids s...
Scientists show jet lag impairs immune response in mice（图）
jet lag impairs immune response mice
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2020/10/23
Imagine you've just arrived in Paris. Your body thinks it should be midnight -- a restorative time when your cells typically proofread DNA, organize and store energy, and perform other essential chore...
Stable, strongly magnetized plasma jet created in laboratory（图）
Stable strongly magnetized plasma jet created laboratory
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2019/10/28
Scientists for the first time have created a particular form of coherent and magnetized plasma jet that could deepen understanding of larger plasma jets that stream from newborn stars and possibly bla...
Discovery could lead to jet engines that run hotter—and cleaner
jet engines run hotter cleaner
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2017/2/16
Researchers here have made a discovery in materials science that sounds likesomething from the old Saturday morning cartoon Super Friends: They’ve found a way to deactivate “nano twins” to impro...
Vortex filament simulation of the turbulent coflowing jet
Vortex filament simulation turbulent coflowing jet
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2016/5/18
A high resolution grid-free vortex filament scheme is applied to the prediction and simulation of coflowing round jets with a view to acquiring a new perspective on their physics and establishing the ...
The Coastal Jet:Observations of Surface Currents Over the Oregon Continental Shelf From HF Radar
Coastal Jet Surface Currents Oregon Continental Shelf HF Radar
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2015/8/10
The ocean circulation over the Oregon shelf during spring and summer is dominated by the effects of coastal upwelling. Equatorward winds drive an offshore Ekman transport in the surface layer, which p...
Neutron Stars Strike Back at Black Holes in Jet Contest
Neutron Stars Strike Back Black Holes Jet Contest
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2015/8/13
Some neutron stars may rival black holes in their ability to accelerate powerful jets of material to nearly the speed of light, astronomers using the Karl G. Jansky Very Large Array (VLA) have discove...
Jet contrails affect surface temperatures（图）
Jet contrails surface temperatures
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2015/7/13
High in the sky where the cirrus ice crystal clouds form, jet contrails draw their crisscross patterns. Now researchers have found that these elevated ice cloud trails can influence temperatures on th...
Topography of material made by the application of abrasive water jet technology
abrasive flow feed rate cutting by abrasive water jet
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2015/5/5
Water jet cutting technology is widely applicable in all industrial areas in areas where the need for high
dimensional precision machined material. Quality of surface corresponds to the scale from m...
Possibilities of homogenization of the kerf width created by the technology of abrasive water-jet cutting
kerf width influence of feed rate influence of abrasive mass flow
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2015/3/27
The paper deals with the possibilities of homogenization of the kerf width by proper choice of the respective feed rate and abrasive mass flow for particular models of cutting. The introductory part i...