Results 131 to 140 of about 71,707 (286)
Fatigue Life Evaluation of Reducer Box of Beam Pumping Unit based on Rain Flow Method
The light weight design of the reducer is one of the most important research topics in the field of mechanical transmission,the box is a very important part of the reducer.
Shang Huichao, Yang Shufeng
doaj
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Modeling the blood–brain tumor barrier is challenging due to complex interactions between brain microvasculature and glioma cells. We present two‐photon polymerized 3D micro‐porous capillary‐like structures that support endothelial alignment, cytoskeletal organization, and pericyte‐endothelial‐glioma tri‐cultures.
Nastaran Barin +9 more
wiley +1 more source
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti +6 more
wiley +1 more source
To address the problems of low efficiency, large energy consumption, frequent workover operation, high management cost and low economic benefit of the artificial lift system composed of beam pumping unit, sucker rod and subsurface pump for low ...
Huang Hua +4 more
doaj
Distributed Bragg Reflector Based on Plasmonic Ag: Plasma Polymer Nanocomposites
This paper presents a comprehensive approach for the optical design and validation of silver nanocomposite‐based Distributed Bragg Reflectors (DBRs). It describes deriving material properties (n, k) and using them to predict the performance of the deposited optical stack, as well as to characterize imperfections in the DBR deposition, or even to ...
Zdeněk Krtouš +7 more
wiley +1 more source
Intramolecular bridge‐locking frustrates detrimental anti‐parallel packing in evaporated organic films. This design enhances net polar orientation, leading to a twofold off‐resonance increase in the second‐order nonlinear susceptibility (χ(2)) without electric‐field poling.
Pierre‐Luc Thériault +6 more
wiley +1 more source
Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions
Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter +9 more
wiley +1 more source
Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme +9 more
wiley +1 more source
Versatile Gasochromic Hydrogen Detection via Supraparticle‐Based Applied Composite Materials
Silica‐platinum‐resazurin supraparticles are embedded into PMMA to form suprabeads and thin films. The thereby obtained indicators change color from purple to pink to colorless on hydrogen exposure. The indicator systems are tested under various environmental conditions, and their performance is related to their microscopically visualized structure ...
Sarah Wenderoth +7 more
wiley +1 more source

