Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Scanning Pyroelectric Microscopy (SPEM) at micrometer resolutions has been employed to study permanent polarity and its spatial organization in various insect wings containing chitin, one of the most abundant biopolymers. Both measurements on wings of houseflies and wasps revealed a well defined pyroelectric response,…
In the present paper the influence of both time and storage temperature on the surface potential decay of polypropylene (PP) composite films was investigated. We have investigated the 200 μm PP composite films with different weight concentrations of the particles (ZnO or CuO) - 0 wt.%, 2 wt.% and 4 wt.%. The samples w…
Colloidal quantum dot‐based hybrid light‐emitting diodes (QDLEDs) have been demonstrated that exhibit quantum efficiencies >10% for all three fundamental colors (>18% for green), device lifetimes of >280K hours, extremely well‐tuned color fidelity approaching Rec. 2020 specifications, and complete solution processing…
We will introduce a novel ¼‐wave plate film (QWP) for OLED displays. This QWP film has a combination of positive and negative intrinsic properties, which results in high on‐and off‐axis contrast as well as low reflective color shift. It will be evaluated versus conventional films used in OLED panels.
Guadalupe Island represents a unique ecosystem. Its volcanic origin and remoteness from the Baja California peninsula have allowed for the successful establishment of its distinctive flora and fauna. However, the difficulty in accessing the island has precluded the study of its biotic communities, mainly the marine on…
In this paper, we report on the optical properties of gallium oxide (β-Ga 2 O 3 ) nanorods synthesized by a simple, cost-effective and environment-friendly method using gallium(III) nitrate hydrate and freshly extracted egg white (ovalbumin) in an aqueous medium. The extracted egg white acted as a matrix for the entra…
When we implanted P + or B + ions into yttria-stabilized zirconia (YSZ), its crystallinity was degraded. Concurrently, the photoluminescence at around 2.8 eV originating from two types of oxygen vacancies with one or two captured electrons became weak, indicating a decrease in the number of oxygen vacancies. Oxygen va…
Low and stable friction is required for mechanical seals in implantable ventricular assist devices . In this study, a specialized test apparatus was designed to test the frictional properties of a mechanical seal in blood in implantable ventricular assist devices. It was shown that a blood-derived protein film forms o…
Polyethylene glycol (PEG) displayed an amazing properties when mixed with other polymers or inorganic materials. Polymers of different types (organic, inorganic or hybrid) and a variety of inorganic materials have been blended and showed interesting properties. So that, a new experimental design of PEG / MCM-41composi…
O trabalho tem como objetivo a síntese de zeólita faujasita a partir de três tipos de caulim da região amazônica: dois caulins provenientes do processo de beneficiamento de caulim para cobertura de papel e caulim duro, um caulim não processado originado da lavra do caulim. Produtos da zeolitização dos caulins mostrara…
Internal reformation of low steam methane fuel is important for the high efficiency and low cost operation of solid oxide fuel cell. Understanding and overcoming carbon deposition is crucial for the technology development. Here a multi-physics model is established for the relevant experimental cells. Balance of electr…
Over the past 60 years, numerous medical strategies have been employed to overcome neoplasms. In fact, with the exception of lung, bronchial, and pancreatic cancers, the 5-year survival rate of most cancers currently exceeds 70%. However, the quality of life of patients during chemotherapy remains unsatisfactory despi…
In the search for higher efficiency machines, the use of new topologies and better electrical steels in the rotor and/or stator stack are part of the solutions envisaged. ArcelorMittal has developed a range of low loss and high permeability grades that can fit this purpose. This paper quantifies the effect of mechanic…
This work reports the technique to selectively sense different gases using a single graphene field effect transistor (FET) by measuring real time conductance as a function of gate voltage. Compare to the state-of-art, three distinctive advancements have been achieved: (1) first demonstration of selective gas sensing (…
In this paper, the effects of temperature cycling on Neodymium-Iron-Boron (NdFeB) magnet aging are investigated. An accelerated lifetime test is parameterized and performed. In order to separate the aging mechanism, the temperature limits given by the manufacturer are not exceeded and the thermal aftereffects, observe…
Due to their superior colour quality, quantum dot‐containing displays have started to appear on the consumer market. However, cadmium presents a serious threat to environmental and human health. We report a liquid crystal display backlight unit comprising heavy metal‐free quantum dots, offering a consumer‐friendly alt…
The high contrast in the electrical resistivity between amorphous and crystalline states of a phase change material can potentially enable multiple memory levels for efficient use of a data storage medium. We report on our investigation of the role of the current injection site geometry (circular and square) in stabil…
Three Al-Cu alloys with Cu contents ranging from 17 to 33 at% were prepared by a melt-spun approach, and their dealloying behavior was investigated. After being dealloyed in NaOH solution, the as-produced nanoporous copper (NPC) samples reveal an inherited structure from their precursor alloys in a comparatively large…
The possibility of the formation of stable domain states in Ba 0.8 Sr 0.2 TiO 3 films on the initial surface and in a preliminarily polarized region of the film has been demonstrated using piezoresponse force microscopy. The velocity of lateral motion of a domain wall, coercive field, minimal domain size, and recordin…
Abstract The paper deals with problems related to application of aluminum-silicon alloys for combustion engine cylinder liners.