Yielding Process

2014 ◽  
pp. 49-98
Keyword(s):  
Yielding Process

Morphology and mechanical properties of transcrystalline isotactic polypropylene

e-Polymers ◽  
2003 ◽  
Vol 3 (1) ◽  
Author(s):  
Koh-hei Nitta ◽  
Yoshikazu Yamamoto
Keyword(s):  
Mechanical Properties ◽  
Isotactic Polypropylene ◽  
Mechanical Energy ◽  
Supermolecular Structure ◽  
The Other ◽  
Morphological Properties ◽  
Spherulitic Morphology ◽  
Other Hand ◽  
Morphology And Mechanical Properties ◽  
Yielding Process

Abstract We examined mechanical and morphological properties of fully transcrystalline polypropylene grown from the surface of poly(tetrafluoroethylene) sheets. Comparison of mechanical properties between transcrystalline and spherulitic polypropylenes demonstrated that Young’s modulus is dependent on the crystallinity and independent of the supermolecular structure. On the other hand, the mechanical yielding process was predominantly affected by the supermolecular structure, and the mechanical energy required for yielding of transcrystalline sheets was greater than that of the spherulitic morphology. In addition, it was found that mechanical necking is required for the alignment of lamellae in the stretching direction. This means that the unfolding process of lamellae orienting in the stretching direction is associated with necking and ductility.

Critical quantities on the yielding process of waxy crude oils

2015 ◽  
Vol 54 (6) ◽  
pp. 479-499 ◽  
Author(s):  
Bruno A. Tarcha ◽  
Bárbara P. P. Forte ◽  
Edson J. Soares ◽  
Roney L. Thompson
Keyword(s):  
Crude Oils ◽  
Waxy Crude ◽  
Waxy Crude Oils ◽  
Yielding Process

Formation and Control of Burr in Grind-Hardening

2007 ◽  
Vol 359-360 ◽  
pp. 98-102 ◽  
Author(s):  
Gui Cheng Wang ◽  
Ju Dong Liu ◽  
Qin Feng Li ◽  
Yun Ming Zhu ◽  
Hong Jie Pei ◽  
...  
Keyword(s):  
New Technologies ◽  
Grind Hardening ◽  
And Control ◽  
Yielding Process

Based on grind-hardening experiments, the two side-direction burrs were studied. Three main stages (burr generation, augmentation and formation) in the burr yielding process were clarified and the varying laws of burr morphologies and dimensions were systematically revealed. In turn raises, some new technologies, processes and methods of actively controlling burrs were put forward.

Development of a Practical, Safe, and High-Yielding Process for the Preparation of Enantiomerically Puretrans-Cyclopropane Carboxylic Acid

2002 ◽  
Vol 6 (5) ◽  
pp. 618-620 ◽  
Author(s):  
Ambarish K. Singh ◽  
Meena N. Rao ◽  
James H. Simpson ◽  
Wen-Sen Li ◽  
John E. Thornton ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Yielding Process

The biomass yielding process of xenobiotic degradation

2010 ◽  
Vol 101 (12) ◽  
pp. 4337-4342 ◽  
Author(s):  
Nyuk-Min Chong ◽  
Shiu-Ching Tsai ◽  
Thanh Nga Le
Keyword(s):  
Xenobiotic Degradation ◽  
Yielding Process

scholarly journals Effect of D-Mannitol on the Microstructure and Rheology of Non-Aqueous Carbopol Microgels

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1782
Author(s):  
Simona Migliozzi ◽  
Panagiota Angeli ◽  
Luca Mazzei
Keyword(s):  
Rheological Behaviour ◽  
Crystalline Form ◽  
Dispersed Phase ◽  
Chemical Similarity ◽  
Interparticle Interactions ◽  
Time Resolved ◽  
Rheological Analysis ◽  
Personal Care Product ◽  
Infinitesimal Deformations ◽  
Yielding Process

D-mannitol is a common polyol that is used as additive in pharmaceutical and personal care product formulations. We investigated its effect on the microstructure and rheology of novel non-aqueous Carbopol dispersions employing traditional and time-resolved rheological analysis. We considered two types of sample, (i) fresh (i.e., mannitol completely dissolved in solution) and aged (i.e., visible in crystalline form). The analysis of the intracycle rheological transitions that were observed for different samples revealed that, when completely dissolved in solution, mannitol does not alter the rheological behaviour of the Carbopol dispersions. This highlights that the chemical similarity of the additive with the molecules of the surrounding solvent allows preserving the swollen dimension and interparticle interactions of the Carbopol molecules. Conversely, when crystals are present, a hierarchical structure forms, consisting of a small dispersed phase (Carbopol) agglomerated around a big dispersed phase (crystals). In keeping with this microstructural picture, as the concentration of Carbopol reduces, the local dynamics of the crystals gradually start to control the integrity of the microstructure. Rheologically, this results in a higher elasticity of the suspensions at infinitesimal deformations, but a fragile yielding process at intermediate strains.

Keeping it simple: A higher-yielding process for manufacturing dendritic cells

2019 ◽  
Vol 11 (517) ◽  
pp. eaaz9749
Author(s):  
Vikramaditya G. Yadav
Keyword(s):  
Dendritic Cells ◽  
Dendritic Cell ◽  
Hollow Fiber ◽  
Hollow Fiber Bioreactor ◽  
Optimized Protocol ◽  
Single Batch ◽  
Yielding Process

An optimized protocol using a hollow-fiber bioreactor produces a complete dose of dendritic cell–based immunotherapies in a single batch.

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