搜索结果: 1-15 共查到“Barrier”相关记录212条 . 查询时间(0.078 秒)
Advanced nanocellulose-based gas barrier materials: Present status and prospects
Nanocellulose Gas barrier Layer-by-layer materials Composites Biomaterials
2023/12/7
Nanocellulose based gas barrier materials have become an increasingly important subject, since it is a widespread environmentally friendly natural polymer. Previous studies have shown that super-high ...
Engineers develop nanoparticles that cross the blood-brain barrier（图）
血脑屏障 纳米颗粒 胶质母细胞瘤 化疗药物
2023/6/19
There are currently few good treatment options for glioblastoma, an aggressive type of brain cancer with a high fatality rate. One reason that the disease is so difficult to treat is that most chemoth...
Study of Belize Barrier Reef Shows Nitrogen Enrichment from Land-based Sources Doubled in Four Decades：What’s killing coral reefs in Florida is also killing them in Belize
coral reef nitrogen concentration algal blooms ecological system
2021/8/5
Only 17 percent of live coral cover remains on fore-reefs in Belize. A study finds new evidence that nitrogen enrichment from land-based sources like agriculture run-off and sewage, are significantly ...
Injective Trapdoor Functions via Derandomization: How Strong is Rudich’s Black-Box Barrier?
black-box barriers one-way functions derandomization
2018/11/19
The key observation underlying our approach is that Rudich's impossibility result applies not only to one-way functions as the underlying primitive, but in fact to a variety of "unstructured'' primiti...
Weak Zero-Knowledge Beyond the Black-Box Barrier
zero knowledge non-black-box techniques fully-homomorphic encryption
2018/11/9
The round complexity of zero-knowledge protocols is a long-standing open question, yet to be settled under standard assumptions. So far, the question has appeared equally challenging for relaxations s...
Pushing the Communication Barrier in Secure Computation using Lookup Tables
Secure computation compiler GMW lookup tables
2018/5/28
Secure two-party computation has witnessed significant efficiency improvements in the recent years. Current implementations of protocols with security against passive adversaries generate and process ...
We study secret sharing schemes for general (non-threshold) access structures. A general secret sharing scheme for nn parties is associated to a monotone function F:{0,1}n→{0,1}F:{0,1}n→{0,1}. In such...
Can We Overcome the nlogn Barrier for Oblivious Sorting?
complexity theory foundations oblivious algorithms
2018/3/5
It is well-known that non-comparison-based techniques can allow us to sort nn elements in o(nlogn)o(nlogn) time on a Random-Access Machine (RAM). On the other hand, it is a long-standing open q...
Towards Breaking the Exponential Barrier for General Secret Sharing
Exponential Barrier General Secret Sharing
2017/11/10
A secret-sharing scheme for a monotone Boolean (access) function F:{0,1}n→{0,1}F:{0,1}n→{0,1} is a randomized algorithm that on input a secret, outputs nn shares s1,…,sns1,…,sn such that for any (x1,…...
UW team shatters long-range communication barrier for devices that consume almost no power（图）
UW team shatters long-range communication barrier consume almost no power
2017/9/20
University of Washington researchers have demonstrated for the first time that devices that run on almost zero power can transmit data across distances of up to 2.8 kilometers — breaking a long-held b...
2017哺乳动物皮肤的屏障功能高登研究研讨会（The Gordon Research Seminar on Barrier Function of Mammalian Skin）
2017 哺乳动物皮肤的屏障功能高登研究 研讨会
2017/3/29
The first Gordon Research Seminar on Barrier Function of Mammalian Skin is a new and special forum for graduate students, post-docs, and other scientists with similar interests to present and exchange...
2017哺乳动物皮肤的屏障功能戈登学术会议（The 2017 Gordon Research Conference on Barrier Function of Mammalian Skin）
2017 哺乳动物皮肤的屏障功能戈登 学术会议
2017/2/13
The 15th meeting of the Gordon Research Conference on "Barrier Function of Mammalian Skin" will be held at the Waterville Valley Resort between August 13th and August 18th, 2017. This Gordon Conferenc...
Effects of alanyl-glutamine supplementation on the small intestinal mucosa barrier in weaned piglets
Alanyl-glutamine Glutamine Small Intestine Mucosa Barrier Piglet
2017/3/9
The study was to investigate the effects of alanyl-glutamine (Ala-Gln) and glutamine (Gln) supplementation on the intestinal mucosa barrier in piglets.
Barrier-island migration drives large-scale marsh loss（图）
Barrier-island migration drives large-scale marsh loss
2017/2/16
If you’ve visited the Outer Banks or other barrier islands, you’ve likely experienced their split personalities—places where high waves can pound the sandy ocean shore while herons stalk placid saltma...
Darwin’s Theory About “Impassable”Marine Barrier Holds True for Coral Larvae
Darwin’s Theory Impassable Marine Barrier Coral Larvae
2016/9/12
An international team of scientists used a state-of-the-art computer model, a high-powered supercomputer, and five billion ‘virtual’ coral larvae to test Charles Darwin’s 1880 hypothesis that marine s...