搜索结果: 1-15 共查到“国际动态 p>n problem”相关记录32条 . 查询时间(0.14 秒)
Century-old problem solved with first-ever 3D atomic imaging of an amorphous solid(图)
Century-old problem solved first-ever 3D atomic imaging amorphous solid
2021/4/16
Glass, rubber and plastics all belong to a class of matter called amorphous solids. In spite of how common they are in our everyday lives, amorphous solids have long posed a challenge to scientists.Si...
The telltale signature of a cookstove, commonly used to prepare food or provide heat by burning wood, charcoal, animal dung or crop residue, is the thick, sooty smoke that rises from the flames. Its r...
Soot may be half the problem when it comes to cookstoves(图)
Soot half problem comes cookstoves
2020/4/26
The telltale signature of a cookstove, commonly used to prepare food or provide heat by burning wood, charcoal, animal dung or crop residue, is the thick, sooty smoke that rises from the flames. Its r...
Facial recognition software has a gender problem(图)
Facial recognition software gender problem
2019/11/5
With a brief glance, facial recognition software can categorize gender with remarkable accuracy. But if that face belongs to a transgender person, such systems get it wrong more than one third of the ...
Combing out a tangled problem(图)
Harvard University intracellular recording nanotechnology
2019/10/23
In August 2010, Charles M. Lieber, the Joshua and Beth Friedman University Professor at Harvard University, published a paper on nanoscale devices for intracellular recording, the first nanotechnology...
Physics of laser frequency combs sheds light on nature’s problem-solving skills(图)
Physics laser frequency combs sheds light problem-solving skills
2019/10/23
Nature has a way of finding optimal solutions to complex problems. For example, despite billions of ways for a single protein to fold, proteins always fold in a way that minimizes potential energy. Sl...
Genetic testing has a data problem. New software can help(图)
Genetic testing;data problem New software
2019/10/30
In recent years, the market for direct-to-consumer genetic testing has exploded. The number of people who used at-home DNA tests more than doubled in 2017, most of them in the U.S. Some 1 in 25 Americ...
You’d Have To Be A Genius:The Problem With 'Brilliance' And Stem Participation(图)
Genius Brilliance Stem Participation
2018/1/31
Why do large gender disparities exist in certain fields but not others? Research suggests that many factors perpetuate gender disparities, including implicit and explicit biases, a lack of role models...
Trickle-Down Is The Solution(To The Planetary Core Formation Problem)(图)
Trickle-Down The Solution The Planetary Core Formation
2017/12/19
Scientists have long pondered how rocky bodies in the solar system—including our own Earth—got their metal cores. According to research conducted by The University of Texas at Austin, evidence points ...
Marine Reserves a Solution to Bycatch Problem in Oceans(图)
Marine Reserves Bycatch Problem Oceans
2017/9/4
Commercial fishermen may be able to catch more of the profitable fish they want with marine reserves than without them, according to a study in the journal PNAS led by the University of California, Da...
Cryo-EM images reveal how key biological machine unfolds problem proteins
Cryo-EM images biological machine proteins
2017/7/21
Hand over hand. That's how new, near-atomic resolution, 3-D snapshots show that a key biological machine unfolds a ribbon of protein through its central channel.The machine is a protein complex called...
New Study Exposes the Growing Problem of Patent Aggregators and Aggregators’ Negative Impact on Innovation in the United States
Patent Aggregators Negative Impact on Innovation United States
2016/5/6
The new study, co-authored by Professor Lauren Cohen of Harvard Business School, Professor Umit Gurun of the University of Texas at Dallas, and Dr. Scott Duke Kominers, a Junior Fellow at th...
The primary mission of the recently foundedNanotechnology Enabled Water Treatment (NEWT) Center, a consortium based at Rice University and led by environmental engineer Pedro Alvarez, is to ...
UI Researchers:The U.S. Must Address the ‘Wicked Problem’ of Wildfire
UI Researchers U.S. Wicked Problem Wildfire
2016/2/23
The United States must make preparing for and adapting to wildfire a top national priority, says a team of University of Idaho researchers and their international partners in a paper published to...
Study Shows Animals with Larger Brains are Best Problem Solvers
Animals Larger Brains Best Problem Solvers
2016/2/22
Why did some species, such as humans and dolphins, evolve large brains relative to the size of their bodies? Why did others, such as blue whales and hippos, evolve to have brains that, compared to the...