Results 71 to 80 of about 32,369 (300)

Impedance Tube for Measuring Sound Absorption Coefficient

open access: yes, 2022
This thesis, consists of summering basic knowledge about absorption factor, methods for its measuring and construction of impedance tube for measuring with chosen method.
Raška, Adam
core  

ESR1 methylation and ESR1 mutations in circulating tumor cells (CTCs) and paired plasma‐cfDNA of advanced breast cancer patients: A feasibility proof‐of‐concept study

open access: yesMolecular Oncology, EarlyView.
Circulating tumor cells (CTCs) and plasma cell‐free DNA (cfDNA) were analyzed to detect ESR1 mutations and methylation in patients with advanced breast cancer. CTC‐derived DNA showed higher sensitivity for mutation detection and revealed complementary genetic and epigenetic alterations, highlighting the added value of CTC analysis for understanding ...
Dimitra Stergiopoulou   +12 more
wiley   +1 more source

Angle-Dependent Absorption of Sound on Porous Materials

open access: yesAcoustics, 2020
Sound-absorbing materials are usually measured in a reverberation chamber (diffuse field condition) or in an impedance tube (normal sound incidence). In this paper, we show how angle-dependent absorption coefficients could be measured in a factory-type ...
Jose Cucharero   +2 more
doaj   +1 more source

Construction and testing of a modern acoustic impedance tube [PDF]

open access: yes, 2001
The acoustic impedance of a material describes its reflective and absorptive properties. Acoustic impedance may be measured in a wide variety of ways.
O'Malley, Sean P.
core  

Circulating tumor cell viability during and after radiotherapy mirrors treatment response in cancer patients

open access: yesMolecular Oncology, EarlyView.
Radiotherapy (RT) response depends on the DNA repair capacity of tumor and host cells. We show that circulating tumor cell (CTC) counts and apoptosis rates before and after RT predict treatment response and outcome, which can be accessed via easily accessible liquid biopsy approaches. Created in BioRender. Wikman, H.
Yvonne Goy   +10 more
wiley   +1 more source

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

open access: yesInfrastructures
In the last decade, various asphalt paving materials have undergone investigation for sound attenuation purposes. This research aims to delve into the innovative design of sustainable road pavements by examining sound absorption in rubber-modified ...
Freddy Richard Apaza   +6 more
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

open access: yesMolecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis   +3 more
wiley   +1 more source

Development of sustainable thermoplastic and thermoset based Areca Husk and Coir Fiber reinforced composites for acoustic applications

open access: yesMaterials Research Express
With the rising need for sustainable and high-performance materials, significant research has been conducted on natural fiber-based composites for various engineering uses. This research examines the acoustic characteristics of composites made from Areca
Padmaraj N H   +4 more
doaj   +1 more source

Adaptive model-based control of boundary impedance in an acoustic impedance tube

open access: yes, 2020
Impedance tubes are employed for measurements of acoustic properties in various fluids. The ability to manipulate and control the frequency-dependent boundary impedance of the tube improves the accuracy of the estimation.
Yoav Vered   +3 more
core   +1 more source

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