搜索结果: 1-15 共查到“Defects”相关记录136条 . 查询时间(0.089 秒)
Sodium-ion batteries have been touted as a sustainable alternative to lithium-ion batteries because they are powered by a more abundant natural resource. However, sodium-ion batteries have hit a signi...
Sometimes it’s good to be a little bad.
A new way to generate light using pre-existing defects in semiconductors（图）
半导体 高铟浓度 氮化铟镓LED
2023/6/7
Researchers from the Low Energy Electronic Systems (LEES) interdisciplinary research group at the Singapore-MIT Alliance for Research and Technology (SMART), MIT’s research enterprise in Singapore, to...
中国科学院苏州纳米技术与纳米仿生研究所蔺洪振研究团队Nano Letter：护锂英雄有孤胆，空缺之处是我家（SAC-in-Defects）（图）
蔺洪振 Nano Letter 金属 锂电池 可充电 二次电池
2021/4/8
便携式智能器件与长续航动力汽车的发展对可充电的二次电池的能量密度提出了更高的要求。金属锂电池因其高比容量（3860 mA h g-1）和较低的标准电压而备受关注，是理想的高能量密度负极材料。然而，锂金属电池的实际应用仍面临不可控的锂离子动力学问题，如不可控的锂沉积和溶解行为、固态电解质中间相（SEI）界面的反复生成和变形以及体积膨胀等，这会引起严重的锂枝晶问题并缩短锂金属循环寿命。我们在前期的正极...
Wriggling Microtubules Help Explain Coupling of “Active” Defects and Curvature（图）
Wriggling Microtubules Explain Coupling Active Defects Curvature
2017/10/26
Imagine a tiny donut-shaped droplet, covered with wriggling worms. The worms are packed so tightly together that they must locally line up with respect to each other. In this situation, we would say t...
Moderate folic acid supplementation and MTHFD1-synthetase deficiency in mice, a model for the R653Q variant, result in embryonic defects and abnormal placental development
birth defects developmental defects embryo folic acid high folate methylenetetrahydrofolate reductase MTHFD1 placenta
2018/12/19
Background: Moderately high folic acid intake in pregnant women has led to concerns about deleterious effects on the mother and fetus. Common polymorphisms in folate genes, such as methylenetetrahydro...
Fortification with low amounts of folic acid makes a significant difference in folate status in young women: implications for the prevention of neural tube defects
Neural tube defects folic acid fortification
2016/6/1
Mandatory fortification of grain products with folic
acid was introduced recently in the United States, a policy expected
to result in a mean additional intake of 100 mg/d. One way of predicting
th...
Faulty bioelectric signal responsible for facial defects caused by rare genetic disorder
Faulty bioelectric signal facial defects genetic disorder
2016/2/23
Tufts University biologists have discovered the bioelectric mechanism by which the rare genetic disorder Andersen-Tawil syndrome (ATS) causes facial abnormalities, a finding that could lead to prevent...
Tessier Number 30 Clefts With Congenital Heart Defects
Facial Median Cleft Congenital Heart Defects
2015/10/22
Introduction: Midline cleft of mandible, classified as Tessier 30 clefts is extremely rare, with less than 100 reported cases in the latest studies. Variations in severity and associated malformations...
New Technique Developed by Team Including CMU President Suresh Removes Defects While Keeping Materials Strong
CMU President Removes Defects Keeping Materials Strong
2015/11/12
When designing a new material, whether for an airplane, car, bridge, mobile device, or biological implant, engineers strive to make the material strong and defect-free. However, methods conventionally...
Formulas for the force dipole interaction of surface line defects in homoepitaxy
Formulas for the force surface line defects homoepitaxy
2015/10/16
Using asymptotics, we derive explicit, simplified formulas for integrals representing the force dipole interaction energy per unit length between line defects (steps) of the same sign that form pertur...
Configuration of VLSI Arrays in the Presence of Defects
Circuit area fault tolerance percolation theory probabilistic analysis queuing processes systolic arrays
2015/8/14
The penalties for configuring VLSI arrays for yield enhancement are assessed. Each dement of the fabricated array is assumed to be defective with independent probability p. A fixed fractmn R of the el...
Configuration of VLSI Arrays in the Presence of Defects
Circuit area fault tolerance percolation theory probabilistic analysis queuing processes systolic arrays wafer-scale integration wire length
2015/8/12
The penalties for configuring VLSI arrays for yield enhancement are assessed. Each dement of the fabricated array is assumed to be defective with independent probability p. A fixed fractmn R of the el...
A computer memory with defects is modeled as a discrete memoryless channel with states that are statistically determined. The storage capacity is found when complete defect information is given to the...
Evaluation of the activity of intraarticular hyaluronic acid in the repair of experimentally induced osteochondral defects of the stifle joint in dogs
osteochondral defect hyaluronic acid dog
2015/4/2
The present study examined the results of using hyaluronic acid with autogenetic cancellous grafts in the treatment of experimentally induced osteochondral defects in the stifle joints of dogs. In thi...