Results 161 to 170 of about 84,531 (218)

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

Advanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won, Jaehyun Jang, Hyeonseo Kim, Inyoung Choi, Steve Park, Seongjun Park   +5 more
wiley   +1 more source

3D Printing of Self‐Healing Polymers by Material Extrusion: A Process‐Centric Review of Setups, Parameters, and Applications

Advanced Robotics Research, EarlyView.
This review highlights recent advances in material extrusion 3D printing of self‐healing polymers, focusing on the interplay between material chemistry, rheology, hardware customization, and process optimization. Filament‐ and ink‐based extrusion strategies, multimaterial architectures, and postprocessing approaches are discussed for applications in ...
Antonio Pavone, Gianni Stano, Gianluca Percoco   +2 more
wiley   +1 more source

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Structure of the product of dehydration of glutamic acid

Tetrahedron, 1966
Abstract Acylation of glutamic acid with glutaric anhydride instead of affording the expected N-glutaryl derivative yielded a high melting 1 substance (340° with dec) which was shown by X-ray diffraction, IR and UV to be identical with that obtained by King et al. , and Tesuo et al. , from glutamic acid by dehydration. The tetraketo structure (I),
S, el-Zanfally, M, Khalifa, Y M, Abou-Zeid   +2 more
openaire   +2 more sources

Crystal Structure of Dehydrated Wairakite

Journal of Structural Chemistry, 2002
Single‐crystal X‐ray analysis was employed to study dehydrated wairakite Ca0.97Na0.06K0.03×[Al1.95Si4.04O12] with the following parameters: a = 18.260(4) A, b = 18.284(4) A, c = 13.432(3) A, β = 90.28(3)°, V = 4989(3) A3, Z = 16, space group B21/d. A comparison was carried out with the structure of the high‐temperature (600°) phase, space group I41/acd.
Yu. V. Seryotkin, V. V. Bakakin, I. A. Belitsky, B. A. Fursenko   +3 more
openaire   +1 more source

Food dehydration and product structure

Trends in Food Science & Technology, 2003
Abstract Dehydration of biological material is a controlled effort to preserve the structure or create a new one that serves for functional purposes. In this context, food dehydration is revisited from the perspective of recent advances in food materials science, knowledge from desiccation in Nature, microstructural probing, novel processing ...
José Miguel Aguilera, Amparo Chiralt, Pedro Fito   +2 more
openaire   +1 more source

Structural modifications induced by dehydration in the zeolite gismondine

Zeolites, 1993
Abstract Gismondine from Montalto di Castro, Italy [Ca3.91Al7.77Si8.22O32·17.57 H2O], a = 10.0199(4), b = 10.6373(5), c = 9.8316(5) A , β = 92.561(6)°, space group P21/c, dehydrated in vacuum for 1 and 24 h and transformed into two new phases, here called gismondine (1 h) and gismondine (24 h), respectively. Gismondine (1 h) is characterized
Vezzalini G., QUARTIERI, Simona, Alberti A.   +2 more
openaire   +2 more sources

Structural changes of water in a hydrogel during dehydration

The Journal of Chemical Physics, 2009
Raman spectra of poly-N,N,-dimethylacrylamide hydrogel were measured in order to investigate the mechanism of the structural changes in water and the polymer network during dehydration. The results show that the vibrational energies of the CO and the O–H stretching modes increase with the extent of dehydration, whereas that of the CH3 rocking mode ...
Yurina, Sekine, Tomoko, Ikeda-Fukazawa
openaire   +2 more sources

Structural Characterisation and Dehydration Behaviour of Siramesine Hydrochloride

Journal of Pharmaceutical Sciences, 2009
In this study the crystal structures of siramesine hydrochloride anhydrate alpha-form and siramesine hydrochloride monohydrate were determined, and this structural information was used to explain the physicochemical properties of the two solid forms.
Zimmermann, Anne, Tian, Fang, Lopez de Diego, Heidi, Frydenvang, Karla Andrea, Rantanen, Jukka Tapio, Elema, Michiel Ringkjøbing, Hovgaard, Lars   +6 more
openaire   +3 more sources

Carotenoid dehydrates in recent marine sediments. The structure and synthesis of fucoxanthin dehydrate

Organic Geochemistry, 1988
Abstract Fucoxanthin dehydrates are common constitutents of anoxic marine sediments representing important intermediates in the early diagenesis of major phytoplankton pigments. We report here the full structure and synthesis of fucoxanthin 5′-dehydrate and fucoxanthinol 5′-dehydrate isolated from Buzzards Bay (Massachusetts) and Peru surface ...
Daniel J. Repeta, Nelson M. Frew
openaire   +1 more source

Structural study of the coherent dehydration of wadsleyite

American Mineralogist, 2011
The coherent dehydration of pure-Mg wadsleyite has been investigated by single-crystal X-ray diffraction at high temperature and room pressure. Hydrous wadsleyite with 2.8 wt% H2O has monoclinic unit-cell parameters of a = 5.6693(4), b = 11.571(1), c = 8.2407(5) A, β = 90.209(3)°, and V = 540.59(7) A3.
Y. Ye, J. R. Smyth, D. J. Frost
openaire   +1 more source