搜索结果: 1-15 共查到“工学 dielectric”相关记录79条 . 查询时间(0.046 秒)
Preparation of fluorinated epoxy-phthalonitrile resins with excellent thermal stability and low dielectric constant
curing behavior fluorinated epoxy-phthalonitrile resins low dielectric constant thermal stability
2023/11/16
Fluoropolymers find applications in heat-resistant cables, chemical-resistant linings, electronic components, cladding materials, and weather-resistant films. Therefore, it is imperative to improve th...
Biorenewable rosin derived benzocyclobutene resin: a thermosetting material with good hydrophobicity and low dielectric constant
CROSS-LINKING POLYMER TEMPERATURE NANOINDENTATION
2024/3/5
Development of bio-based polymers has been promoted by the growing concerns about the long-term sustainability and negative environmental footprint of petroleum-based polymer materials. A new monomer ...
Researchers Measure How Specific Atoms Move in Dielectric Materials
Researchers Atoms Move Dielectric Materials
2015/10/13
The atomic-scale response of dielectrics/ferroelectrics to electric fields is central to their functionality. Here we introduce an in situ characterization method that reveals changes in the local ato...
Dielectric and magnetic proper ties of BiFe1-4x/3TixO3 ceramics with iron vacancies:Experimental and first-principles studies
Ceramics Vacancies Ozone Iron group ions X-ray diffraction
2016/12/2
BiFe1-4x/3TixO3 (x = 0-0.2) ceramics with Fe vacancies created by nonstioichiometric compositions were synthesized to study their crystal structures, dielectric, and ferromagnetic behavior...
Effect of freezing rate and comminution on dielectric properties of pork
radio-frequency heating microwave heating meat properties meat batter
2014/2/24
The impact of comminution and the freezing rate on the dielectric properties (ε' and ε'') of meats measured at frequencies used for cooking, i.e. radio frequency, RF (27.12 MHz), and microwave, MW (91...
Enhancement in Light Extraction Efficiency of GaN-Based Light-Emitting Diodes Using Double Dielectric Surface Passivation
GaN Light-Emitting Diode (LED) Al2O3 PEALD Passivation Double Dielectric Stack Layer
2013/1/30
SiO2Al2O3 double dielectric stack layer was deposited on the surface of the GaN-based light-emitting diode (LED). The double dielectric stack layer enhances both the electrical characteristics and the...
Rectification of evanescent heat transfer between dielectric-coated and uncoated silicon carbide plates
transfer between dielectric-coated uncoated silicon carbide plates
2015/8/7
Here, we show analytically that the thermal rectification via evanescent waves is obtained in the parallel semi-infinite bodies of the dielectric-coated silicon carbide and uncoated silico...
Comparative Study of the One Dimensional Dielectric and Metallic Photonic Crystals
Transmission Metallic Photonic Crystals Dielectric Photonic Crystals Photonic Band Gap
2013/1/30
The optical transmission properties of two types of photonic crystals have been analyzed by using the transfer matrix method. The first one is the dielectric photonic crystal (DPC), and the second is ...
Enhancing the Overwriting Characteristics of Phase-Change Optical Disks by Doping in Dielectric Layers
overwriting characteristics cycleability phase-change optical disk doping dielectric layer
2011/11/25
In this work, we studied the enhancement of overwriting characteristics of phase-change optical disks by doping in the dielectric layers. The doping elements included chromium (Cr), molybdenum (Mo), n...
Image transfer with subwavelength resolution to metal–dielectric interface
Image transfer subwavelength resolution metal–dielectric interface
2015/8/10
In image transfer, one aims to reproduce at an image plane the field distribution of the field at the source plane. We consider a near-field image transfer scheme where an image with subwavelength res...
Dielectric nanostructures for broadband light trapping in organic solar cells
Solar energy Nanophotonics photonic crystals Diffraction gratings
2015/8/10
Organic bulk heterojunction solar cells are a promising candidate for low-cost next-generation photovoltaic systems. However,carrier extraction limitations necessitate thin active layers that sacri...
Numerically exact calculation of electromagnetic heat transfer between a dielectric sphere and plate
Numerically exact calculation electromagnetic heat transfer between dielectric sphere plate
2015/8/10
We present a numerically exact calculation of electromagnetic heat transfer between a dielectric sphere and plate. We compare the calculation to a recent experiment. Our calculations unify various app...
Performance Investigation of Cone Dielectric Elastomer Actuator Using Taguchi Method
dielectric elastomer actuator performance objective Taguchi method
2011/8/4
Dielectric elastomer actuator (DEA) show promise for mechatronic applications due to the advantages of dielectric elastomer, such as lightweight, flexible, low cost, high strain, etc, and many configu...
Performance Investigation of Cone Dielectric Elastomer Actuator Using Taguchi Method
dielectric elastomer actuator performance objective Taguchi method
2011/8/4
Dielectric elastomer actuator (DEA) show promise for mechatronic applications due to the advantages of dielectric elastomer, such as lightweight, flexible, low cost, high strain, etc, and many configu...
100 Hz～3.98 MHz下苹果虎皮病果实电特性研究（Dielectric Properties of Fuji Apple Superficial Scald in the 100Hz～3.98MHz Range）
苹果 虎皮病 电特性
2010/12/29
为了研究富士苹果虎皮病病果电特性的变化规律，探讨利用电特性参数的变化来反映苹果内部的物理化学变化，运用LCR型电子测量仪测定了100Hz～3.98MHz频率、（20±1）℃恒温条件下贮藏1、8、15、22和29d的虎皮病果实复阻抗、电抗、电导、电容和介质损耗系数等电学参数。结果显示：在同一贮藏时间下，随着频率的增加，果实的复阻抗、电抗值在减小，电导值则在增加；而电容和果实的介质损耗系数变化则没...