Results 21 to 30 of about 8,846 (205)

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Passive Directional Water Transport on Superhydrophobic Gradient Textures Fabricated by Direct Laser Interference Patterning

Advanced Materials Technologies, EarlyView.
Microstructures fabricated by two‐beam DLIP combining spatial‐period and roughness gradients are fabricated to enhance directional transport of water droplets. The coupled gradients increase transport distance by 160% and strongly suppress motion against the gradient, demonstrating an effective strategy for controlled droplet manipulation.
Tianhao Wu, Marcos Soldera, Fabian Ränke, Andrés Fabián Lasagni   +3 more
wiley   +1 more source

НОВЫЕ БИОМАРКЕРЫ СИСТЕМНОГО ВОСПАЛЕНИЯ SIRI И AISI, ВЗАИМОСВЯЗЬ С ПРОЦЕССАМИ РАННЕГО СОСУДИСТОГО СТАРЕНИЯ У ПАЦИЕНТОВ С СУБКЛИНИЧЕСКИМ ГИПОТИРЕОЗОМ И БЕССИМПТОМНЫМ АТЕРОСКЛЕРОЗОМ КОРОНАРНЫХ АРТЕРИЙ

Žurnal Grodnenskogo Gosudarstvennogo Medicinskogo Universiteta
Цель исследования. Оценить характеристики липидограммы, количественные и индексированные показатели лейкоцитарной формулы, масштабы атеросклеротического поражения коронарного бассейна, установить взаимосвязь дисфункции щитовидной железы (ЩЖ) с ...
Е. Б. Петрова, О. Н. Шишко, С. Э. Огурцова, М. И. Бельская, М. Г. Колядко, И. И. Русских, Н. П. Митьковская   +6 more
doaj   +1 more source

Characterization chip formation of commercial steel materials at low speed cylindrical grinding processes

MATEC Web of Conferences, 2018
Cylindrical grinding is the process of metal removal using multiple cutting point. The objective of the study is to investigate the chip characteristics (shape and width) and surface roughness materials. The materials are AISI 1020, AISI 1045, AISI 1090,
Isti Nugroho Wahyu, Nugroho Sri, Rusnaldy   +2 more
doaj   +1 more source

High temperature oxidation behavior of AISI 304 and AISI 430 stainless steels

Materials Research, 2006
The oxidation behavior of AISI 304 and AISI 430 stainless steels was investigated from 1100 °C up to 1200 °C. Mössbauer spectroscopy and x ray diffraction were used to access the phase composition of the formed scales. The main crystalline phases
Carlos Eduardo Reis de Carvalho, Geraldo Magela da Costa, André Barros Cota, Edson Hugo Rossi   +3 more
doaj   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

Chemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler, Kati Schatz, Sebastian Rehfeldt, Harald Klein   +3 more
wiley   +1 more source

Overcoming Cell Fixture Challenges in High‐Pressure Operation of Solid‐State Batteries

Energy Science &Engineering, EarlyView.
Accurate application of high uniaxial pressure remains a limiting factor in large‐format solid‐state battery testing. A spring‐loaded fixture employing deflection‐based pressurization enables precise, homogeneous, and reproducible pressure application without expensive in‐fixture sensors, providing a robust framework for systematic investigation of ...
Lovis Wach, Constantin Ruess, Sophie Grabmann, Ruediger Daub   +3 more
wiley   +1 more source

New Thermal Lattice Boltzmann Method for Modeling Heat Transfer Problems Considering Temperature‐Dependent Properties

Heat Transfer, EarlyView.
ABSTRACT Several engineering problems involve the need to model conjugate heat transfer processes considering the temperature‐dependence of the material properties. Consequently, a simulation tool capable of modeling this process is of great interest. In this context, the present work proposes a thermal lattice Boltzmann method (TLBM) for modeling the ...
Julia Akiko Sassa, Ivan Talão Martins, Luben Cabezas Gómez   +2 more
wiley   +1 more source

Diagnostic performance of the systemic inflammation response index and aggregate index of systemic inflammation in polycystic ovary syndrome: A ROC curve analysis

Romanian Journal of Laboratory Medicine
Polycystic ovary syndrome (PCOS) is a common endocrine disorder in reproductive-age women, characterized by hormonal, metabolic, and inflammatory changes. Chronic low-grade inflammation plays a key role in its pathogenesis.
Dikova Natalia Nikolaeva, Andreeva Petya, Dimova Ivanka, Velizarova Milena   +3 more
doaj   +1 more source

Hematological Inflammation Indices Are Associated With Active Uveitis in Ankylosing Spondylitis

Journal of Clinical Laboratory Analysis, EarlyView.
Hematological inflammation indices reflect the systemic inflammatory burden in ankylosing spondylitis. Patients with active uveitis exhibit a distinct pro‐inflammatory profile characterised by increased NLR, PLR, SII, SIRI, and AISI, along with decreased HALP and CALLY scores.
Mesude Seda Aydoğdu, Zarife Ekici Gök
wiley   +1 more source