Results 71 to 80 of about 51,913 (299)

Superhydrophobic structures on 316L stainless steel surfaces machined by nanosecond pulsed laser [PDF]

open access: yes, 2018
In this paper nanosecond laser machining process was developed to improve the hydrophobicity of AISI 316L stainless steel surface. A geometrical model of laser machined Gaussian micro hole, together with constrain conditions, was established for the ...
Cai, Yukui   +5 more
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

Opto-PCB: Three demonstrators for optical interconnections [PDF]

open access: yes, 2008
We report on a research project targeting optical waveguide integrated PCBs conducted within the European FP6 Network of Excellence on Micro-Optics NEMO.
Alajoki, T.   +14 more
core   +1 more source

Widening Viewing Angles of Automultiscopic Displays using Refractive Inserts [PDF]

open access: yes, 2018
Displays that can portray environments that are perceivable from multiple views are known as multiscopic displays. Somemultiscopic displays enable realistic perception of 3D environments without the need for cumbersome mounts or fragile head-tracking ...
Komura, Taku   +4 more
core   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang   +18 more
wiley   +1 more source

Air-Mode Photonic Crystal Micro-Ring Resonator With Enhanced Quality Factor for Refractive Index Sensing

open access: yesIEEE Photonics Journal, 2020
Intense light-matter interaction is critical for enabling high-sensitivity refractive index sensors, high-efficiency light sources, and high-performance nonlinear devices.
Yameng Xu, Shubo Hu, Mei Kong
doaj   +1 more source

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

open access: yesAdvanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo   +14 more
wiley   +1 more source

EFFECTS OF SURFACE MICROMORPHOLOGY CHARACTERISTICS ON FATIGUE PERFORMANCE OF DOUBLE COLD EXPANDED HOLE

open access: yesJixie qiangdu, 2022
Established the double cold expansion simulation model, and investigated the effects of surface micromorphology characteristics on the fatigue performance of double cold expanded holes.
JIANG TingYu   +6 more
doaj  

Key technologies in ultrasonic machining micro holes

open access: yesChinese Journal of Mechanical Engineering, 2007
In order to enhance the micro level and precision of micro holes machined by ultrasonic machining (USM), the key technologies for machining micro holes are studied, which in- dude high precise machine tool, USM unit, manufacturing technology of the micro tool and the choice of the geometric parameters.
openaire   +1 more source

Glimpses on the micro black hole Planck phase

open access: yes, 2008
Mass thresholds, lifetimes, entropy and heat capacity for micro black holes close to their late Schwarzschild phase are computed using two different generalized uncertainty principles, in the framework of models with extra spatial dimensions.
Banks, Fabio Scardigli, Giddings
core   +1 more source

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