Results 31 to 40 of about 34,194 (261)

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Reconcentrating the Ionic Liquid EMIM-HSO₄ Using Direct Contact Membrane Distillation

Molecules
Adequate water supplies are crucial for missions to the Moon, since water is essential for astronauts’ health. Ionic liquids (ILs) have been investigated for processing metal oxides, the main components of lunar regolith, to separate oxygen and metals ...
Mark J. Wong, Viral Sagar, Joan G. Lynam
doaj   +1 more source

Rheology of polytetrafluoroethylene [PDF]

Journal of Polymer Science Part A: General Papers, 1963
AbstractThe rheology of polytetrafluoroethylene above its melting point was studied by the technique of stress relaxation. The temperature shift for the maximum relaxation time at various temperatures fits the WLF equation, if the value of Tg is taken to be 110°C. Degradation of the polymer becomes appreciable above 380°C.
A. V. Tobolsky, D. Katz, M. Takahashi
openaire   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Analysis of cutting parameters for enhanced dimensional accuracy in polytetrafluoroethylene groove cutting

Journal of Advanced Mechanical Design, Systems, and Manufacturing
Polytetrafluoroethylene (PTFE) is commonly employed in the fabrication of fluidic components within the circulatory systems of electronics, biomedicine and other industries.
LiHua HE, YaoLin LIU, Jing NI, Zhi CUI, BoKai LOU   +4 more
doaj   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

FRICTIONAL BEHAVIOR OF STEEL SLIDING ON POLYMERIC MATERIALS [PDF]

Journal of the Egyptian Society of Tribology
The aim of the present study is to investigate the friction coefficient displayed by sliding of bearing steel on polytetrafluoroethylene (PTFE) and polymethyl methacrylate (PMMA) at dry and in the presence of paraffin and glycerin oils​​.
M. M. Tarboosh, M. I. Khashaba, W. Y. Ali   +2 more
doaj   +1 more source

Wear resistance of nanostructured metal-polymer self-lubricating powder composites

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
Tribotechnical tests and microstructural studies were carried out. Wear mechanism of nanostructured metalpolymer self-lubricating composite materials has been established.
V. N. Pasovets, V. A. Kovtun, Yu. M. Pleskachevsky   +2 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

DEVELOPMENT OF ELECTRONIC SKIN BASED ON BIDIRECTIONAL DIRECT CURRENT TRIBOELECTRIC NANOGENERATOR [PDF]

Journal of the Egyptian Society of Tribology
The present paper studies the development of the design of electronic skin by introducing bidirectional direct current triboelectric nanogenerator (BDC-TENG) to work as self-powered sensor.
W. Y. Ali, M. A. Massoud, A. S. Ali, A. M. Al-Kabbany, M. H. El-Shazly   +4 more
doaj   +1 more source