Results 51 to 60 of about 7,015,582 (266)

Vertical upward flow patterns in small diameter tubes [PDF]

, 2005
Two-phase flow patterns were studied in vertical small diameter tubes using R134a as the working fluid. The observed flow patterns include bubbly, dispersed bubble, confined bubble, slug, churn, annular and mist flow.
Chen, L, Tian, YS, Karayiannis, TG
core   +4 more sources

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

An Age-Based Size-Specific Dose Estimate for Pediatric Computed Tomography Head Examinations Performed at Songklanagarind Hospital, Thailand, from 2017 to 2019

Applied Sciences
Computed tomography (CT) is the primary source of diagnostic radiation in pediatric patients. Patient head size and tissue attenuation are critical factors for estimating CT radiation doses.
Saowapark Poosiri, Kanokkwan Chuboonlap, Nuttita Kaewlaied   +2 more
doaj   +1 more source

Microstructural Evolution and In Situ Formation of TiB and TiC in Ti─5Al─2.5Sn Alloy Processed by Powder Metallurgy

Advanced Engineering Materials, EarlyView.
Accelerated in situ formation of TiB and TiC in Ti–5Al–2.5Sn–B4C is driven by transient liquid phase formation, which enhances particle reactions and microstructural evolution. This process increases hardness and establishes a coupled relationship between sintering temperature and reinforcement content, strongly influencing porosity in the resulting ...
Fernando. Y. Kojima, Juliano. Soyama
wiley   +1 more source

Recycling of agricultural waste: Characteristics and distribution of meso-voids in straw flake asphalt mixtures and their correlation with pavement performance

Industrial Crops and Products
This study aims to elucidate the mesoscopic void characteristics of straw flake-reinforced asphalt mixtures and their correlation with pavement performance by systematically analyzing the mesostructure using industrial computed tomography (CT) scanning ...
Rui Guo, Tengfei Nian, Fei Zhou, Ruimin Liu, Bo Ai   +4 more
doaj   +1 more source

Available phosphorus content in bare soil surface and soluble in water runoff under intense rainfall [PDF]

Revista Brasileira de Ciência do Solo
Available phosphorus (P) content on bare soil surface and in runoff varies with the variation in the dose and form of P application and soil management.
Agna Letícia Botelho Figueiredo, Ildegardis Bertol, Camilo Bertol, Barbara Bagio, Marco Segalla Prazeres   +4 more
doaj   +1 more source

Effect of Calendering and Surface Treatment on the Thermochromic Response of Cholesteric Liquid Crystals on PET Nonwovens

Advanced Engineering Materials, EarlyView.
This study explores the influences of calendering and surface treatment during direct ink writing (DIW) of thermochromic cholesteric liquid crystal (CLC) on PET nonwovens. For the PVA‐coated nonwovens, calendering reduces pore size leading to reduced ink absorption and enhanced spreading. The NeverWet‐coated nonwovens improve thermochromic responses by
Sreenivasan Sreenivasan Narayanan, Lineth Pérez Monsalve, Christina Tang, Hong Zhao   +3 more
wiley   +1 more source

Experimental Investigation to Enhance the Heat Transfer in Heat Exchanger by Made Groove in Outer Surface of the Inner Tube

Wasit Journal of Engineering Sciences, 2017
This study deals with experimental work implementing to recover the benefit by changing the shape of the tube in heat exchanger (HE) and improving the heat transfer using water as the working fluid.
Zena K. Kadhim, Safaa Abed Mohammad
doaj   +1 more source

CORRELATION BETWEEN ANTERIOR–POSTERIOR AND LATERAL DIMENSIONS WITH THE EFFECTIVE AND WATER-EQUIVALENT DIAMETERS IN AXIAL IMAGES FROM HEAD COMPUTED TOMOGRAPHY EXAMINATIONS

Radiation Protection Dosimetry, 2021
AbstractThe study aims to correlate the effective diameter (Deff) and water-equivalent diameter (Dw) parameters with anterior–posterior (AP), lateral (LAT) and AP + LAT dimensions in order to estimate the patient dose in head CT examinations. Seventy-four patient datasets from head CT examinations were retrospectively collected.
Winda Kusuma Dewi, Choirul Anam, Eko Hidayanto, Annisa Lidia Wati, Geoff Dougherty   +4 more
openaire   +2 more sources

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source