Results 31 to 40 of about 150,785 (321)

Differing adaptations of IGF-I and its IGFBPs in dairy cows during a negative energy balance in early lactation and a negative energy balance induced by feed restriction in mid-lactation

Veterinární Medicína, 2013
Control of metabolic pathways is a major task of the somatotropic axis and its constituents. Insulin-like growth-factor binding proteins (IGFBPs) bind IGF-I and -II and act as carriers and regulators of their activities in blood, body fluids and tissues.
E.C. Kessler, J.J. Gross, R.M. Bruckmaier   +2 more
doaj   +1 more source

An Empirical Study on the Wear of Reciprocating Hydraulic Rod Seals Using 15 Different Oils

Chemical Engineering &Technology, Volume 46, Issue 1, Page 86-94, January 2023., 2023
The primary objective of this study was to evaluate the influence of various oils and their wetting properties on the wear of rod seals. In an empirical investigation, the wear of rod seals increased with lower viscosity and higher polarity of the oil. Both oil properties are combined in a newly introduced parameter which helps to assess the lubricity ...
Oliver Feuchtmüller, Lothar Hörl, Frank Bauer   +2 more
wiley   +1 more source

How Wetting Properties Influence the Wear of Radial Lip Sealing Systems

Chemical Engineering &Technology, Volume 46, Issue 1, Page 61-70, January 2023., 2023
Increased wear on radial lip seal systems is observed when sealing modern lubricants. This can impair the function of the sealing system and ultimately lead to leakage. This work shows methods to identify and predict excessive wear of radial lip sealing systems.
Philipp Fricker, Matthias Baumann, Frank Bauer   +2 more
wiley   +1 more source

Biological Markers in Early Multiple Sclerosis: the Paved Way for Radiologically Isolated Syndrome

Frontiers in Immunology, 2022
Radiologically Isolated Syndrome (RIS) is characterized by MRI-typical brain lesions fulfilling the 2009 Okuda criteria, detected in patients without clinical conditions suggestive of MS. Half of all RIS patients convert to MS within 10 years.
Manon Rival, Manon Rival, Manon Galoppin, Eric Thouvenot, Eric Thouvenot   +4 more
doaj   +1 more source

Energy Savings through Adaptive Upstream Throttling and Supply Shut‐Off on Downstream Throttled Drives

Chemical Engineering &Technology, Volume 46, Issue 1, Page 137-146, January 2023., 2023
Pneumatic drives are widely used for their robustness and simple commissioning but tend to have a high energy demand. A simple to implement energy‐saving speed controller is presented. A design method for the controller is proposed and analyzed by a lumped parameter model. The results suggest this approach as a promising strategy to economically reduce
Christian Reese Jimenez, Olivier Reinertz, Katharina Schmitz   +2 more
wiley   +1 more source

Assessment of the Lubricity of Grease‐Sealing Rotary Shaft Seals Based on Grease Properties

Chemical Engineering &Technology, Volume 46, Issue 1, Page 53-60, January 2023., 2023
Grease‐lubricated rotary shaft sealing systems have an increased risk of starved lubrication. For this work, the lubricity of 23 greases was first evaluated and then correlated with grease properties. The results show which properties correlate with the lubricity of the greases and how the lubricity of the grease can be predicted on the basis of short ...
Susanne Hahn, Simon Feldmeth, Frank Bauer   +2 more
wiley   +1 more source

Growth Factor‐Loaded Mesoporous Silica Particles, Incorporated in Electrospun PCL Fibres, Provide Topographical and Chemical Cues for Tendon Tissue Engineering

Advanced Materials Technologies, EarlyView.
Electrospinning enables the hierarchical assembly of nanofiber‐based scaffolds for tissue engineering. However, encapsulated proteins often undergo structural changes. This study used mesoporous silica nanoparticles (MSNs) as protective carriers, mitigating protein denaturation and supporting controlled release.
Vera Citro, Marta Clerici, Matthew T. Shephard, Tina P. Dale, Aldo R. Boccaccini, Nicholas R. Forsyth   +5 more
wiley   +1 more source

Holistic Analysis of the Tribological Interfaces of an Axial Piston Pump – Focusing on the Pump Efficiency

Chemical Engineering &Technology, Volume 46, Issue 1, Page 5-13, January 2023., 2023
Research on the lubricating interfaces in an axial piston pump is summarized, by linking their gap height and temperature behavior to the overall pump efficiency. The temperature field and dynamic fluid film height were measured in two of the three lubricating interfaces.
Ahmed Shorbagy, Roman Ivantysyn, Jürgen Weber   +2 more
wiley   +1 more source

Creatine or guanidinoacetic acid? Which is more effective at enhancing growth, tissue creatine stores, quality of meat, and genes controlling growth/myogenesis in Mulard ducks

Journal of Applied Animal Research, 2019
This study aimed to determine the effectiveness of guanidinoacetic acid (GAA) with or without methionine (Met) compared to creatine (CREA) at enhancing duck’s performance, restoring tissue CREA and improving meat quality.
Doaa Ibrahim, Rania El Sayed, Ahmed Abdelfattah-Hassan, A. M. Morshedy   +3 more
doaj   +1 more source

On the Relentless Pursuit of an Oral Insulin Delivery System: How Far is Too Far?

Advanced Therapeutics, EarlyView.
Injectable insulin preparations have far outpaced oral ones by virtue of adequate bioavailability and are driven by innovations, including insulin pumps, real‐time blood glucose monitoring, and artificial intelligence. In contrast, oral insulin delivery systems, including nanomedicines, continue to struggle and lag due to varied reasons.
Sourav Bhattacharjee
wiley   +1 more source