搜索结果: 1-15 共查到“理学 Speed”相关记录86条 . 查询时间(0.123 秒)
Genomic studies of cancer patients have revealed thousands of mutations linked to tumor development. However, for the vast majority of those mutations, researchers are unsure of how they contribute to...
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
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 ...
Testing the efficacy of a vaccine candidate is typically a long process, with the immune response of an animal model taking around two months.
A multi-institution team, led by Matt DeLisa, the Willia...
2022年10月28日，中国医学科学院系统医学研究院/苏州系统医学研究所（简称“系统所”）陈东升课题组在Nucleic Acids Research《核酸研究》发表了题为“SPEED: Single-cell Pan-species atlas in the light of Ecology and Evolution for Development and Diseases”（SPEED数据库：...
Researchers speed up analysis of Arctic ice and snow data through artificial intelligence（图）
Arctic ice snow data through artificial intelligenc
2021/1/28
Researchers at the University of Maryland, Baltimore County have developed a technique for quicker analysis of extensive data from Arctic ice sheets to gain knowledge of patterns and trends.Over the y...
Biology must be in a hurry. In balancing speed and accuracy to duplicate DNA, produce proteins and carry out other processes, evolution has apparently determined that speed is of higher priority, acco...
Need for speed may contribute to dolphin and whale strandings
contribute dolphin whale strandings
2017/3/30
Dolphins swimming at top speed use more than twice the amount of energy per fin beat than dolphins swimming at a more relaxed pace, according to a study by scientists at UC Santa Cruz. The researchers...
Researchers Quantify in High Speed a Viper’s Strike in Nature for the First Time（图）
Researchers Viper’s Strike Nature First Time
2017/2/16
Feeding is paramount to the survival of almost every animal, and just about every living organism is eaten by another. Not surprisingly, the animal kingdom shows many examples of extreme specializatio...
2017第2届高速生物医学成像和光谱学研讨会（High-Speed Biomedical Imaging and Spectroscopy II: Toward Big Data Instrumentation and Management）
2017 第2届 高速生物医学成像和光谱学 研讨会
2017/1/12
BiOS is organized into six tracks. Choose a track and click to see the list of conferences.Review conference details by clicking on the titles below. These details include paper titles, authors, sched...
Scientists model outer membrane of 12 bacterial species to speed new drugs for 'bad bugs'
Scientists model membrane 12 bacterial species speed new drugs bad bugs
2016/11/4
As bacteria change their behavior to foil the drugs designed to kill them, illnesses that were once relatively easy to treat become difficult to cure. The phenomenon is known as antibiotic resistance,...
Genetically engineering any organism requires first getting its cells to take in foreign DNA. To do this, scientists often perform a process called electroporation, in which they expose cells to an el...
Low-speed impact simulations into regolith in support of asteroid sampling mechanism design I:Comparison with 1-g experiments
Asteroids Surfaces Collisional physics Granular material Sampling mechanism Geological processes Regoliths
2015/12/25
This study is carried out in the framework of sample-return missions to asteroids that use a low-speed projectile as the primary component of its sampling mechanism (e.g., JAXA’s Hayabusa and Hayabusa...
Bounds on the speed of propagation of the KPP fronts in a cellular flow
propagation KPP fronts cellular flow
2015/7/14
We consider a reaction-diffusion-advection equation with a nonlinearity of the KPP type in a cellular flow. We show that the minimal pulsating traveling front speed c∗(A) in a flow ofamplitude A...
We obtain a criterion for pulsating front speed-up by general periodic incompressible flows in two dimensions and in the presence of KPP nonlinearities. We achieve this by showing that the ratio of th...
On the nonlocal Fisher-KPP equation:steady states,spreading speed and global bounds
nonlocal Fisher-KPP equation steady states spreading speed global bounds
2015/7/14
We consider the Fisher-KPP equation with a non-local interaction term. We establish a condition on the interaction that allows for existence of non-constant periodic solutions,and prove uniform upper ...