Results 61 to 70 of about 743,793 (309)

Impact of Self-Contained Breathing Apparatus on Air Gaps in Structural Firefighting Personal Protective Clothing

open access: yesApplied Sciences
The self-contained breathing apparatus (SCBA) is an integral part of the structural firefighting personal protective equipment (PPE) ensemble. However, when donned, it adds significant weight and restriction, interfering with the fit of the turnout suit ...
Josephine Bolaji, Meredith McQuerry
doaj   +1 more source

Accuracy improvement for complex harmonic analysis modelling of a wound field synchronous generator

open access: yesThe Journal of Engineering, 2019
Complex harmonic analysis (CHA) provides a computationally efficient alternative to finite element analysis (FEA) for modelling multi-phase wound field synchronous machines. This paper presents three methods that could improve the accuracy of the CHA: by
Xiaotao Zhang   +2 more
doaj   +1 more source

Ultrasonic characterisation of wheel hub/axle interference fit pressures [PDF]

open access: yes, 2004
Railway wheels are secured onto the axle by means of an interference fit. The wheel is press fitted onto a pre-lubricated axle, and the resulting interference fit induces a contact pressure at the interface. Occasionally railway wheels fail by fatigue,
Demilly, F.   +4 more
core  

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

High‐Contrast Optical Modulation from Strain‐Induced Nanogaps at 3D Heterogeneous Interfaces

open access: yesAdvanced Science, 2020
The realization of high‐contrast modulation in optically transparent media is of great significance for emerging mechano‐responsive smart windows. However, no study has provided fundamental strategies for maximizing light scattering during mechanical ...
Donghwi Cho   +11 more
doaj   +1 more source

Claw‐pole magnetic levitation torque motor for 2D valve with automatic neutral adjustment

open access: yesIET Electric Power Applications, 2023
In order to solve the problems of complex structure and the difficulty of neutral adjustment of the existing 2D valve electro‐mechanical converter, a kind of claw pole magnetic levitation torque motor (CPMLTM) was proposed, which automatically suspended ...
Jiahui Huang   +3 more
doaj   +1 more source

Local governments are hidden but important partners in air quality management. [PDF]

open access: yes, 2017
While it is often overshadowed by concerns about climate change, air quality is still an important issue which affects a large number of Americans. Luke Fowler looks at the role of government in managing air quality, writing that while large scale state ...
Fowler, Luke
core  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Multilayer air gap winding designs for electric machines: theory, design, and characterisation

open access: yesThe Journal of Engineering, 2019
Here, the authors present a magnetic circuit design with a multilayer air gap winding. This design provides a new degree of freedom in the design process.
Norman Borchardt   +4 more
doaj   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

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