Results 41 to 50 of about 2,011 (175)

Nanocellulose‐based hydrogel membranes for underwater osmotic actuators

Responsive Materials, EarlyView.
The review comprehensively summarizes the research progress of nanocellulose‐based hydrogel membranes for underwater osmotic actuators, from the building blocks of nanocelluloses to the underwater osmotic actuation mechanism and applications, and outlines their challenges and perspectives, aiming to facilitate their applications in underwater remote ...
Qingchen Li, Zhengru Wang, Liming Zhang, Tobias Benselfelt, Minghua Huang, Jingyi Wu, Huanlei Wang, Lars Wågberg, Mahiar Max Hamedi, Feng Xu, Weiqian Tian   +10 more
wiley   +1 more source

RADIAL VARIATION OF MICROFIBRIL ANGLE AND WOOD DENSITY AND THEIR RELATIONSHIPS IN 14-YEAR-OLD Eucalyptus urophylla S.T. BLAKE WOOD [PDF]

BioResources, 2011
The orientation of cellulose microfibrils in the cell wall along the stem axis has major effects on stiffness and longitudinal shrinkage and is of key importance in wood quality.
Loïc Brancheriau Mail, Paulo Ricardo Gherardi Hein   +1 more
doaj  

Effect of microfibril angle on the longitudinal tensile creep behavior of wood

Journal of Wood Science, 2004
In this report, we undertook studies of the viscoelastic properties of wood from the viewpoint of the fine structure and properties of the constituent materials in the wood cell wall. To measure the mechanical properties of the wood as the behavior of the cell wall, it is required to perform the longitudinal tensile test using a homogeneous specimen ...
Yoichi Kojima, Hiroyuki Yamamoto
openaire   +1 more source

Cellulose Microfibril Angle in Wood and Its Dynamic Mechanical Significance [PDF]

, 2013
إن اتجاه اللييفات الدقيقة السليلوزية في طبقات S2 من جدران الخلايا من الخشب اللين له تأثير كبير على الخواص الميكانيكية للخشب. تم العثور على الزاوية بين لييفات السليلوز ومحور الخلية الطولي، وزاوية اللييفات الدقيقة، MFA لتكون عاملاً حاسماً في تحديد الخصائص الفيزيائية والميكانيكية للخشب (Cave، 1997). لهذا السبب، تم توجيه جهد كبير نحو قياس MFA السليلوز.
Aykut Tamer, Fakhreza Abdul
openaire   +1 more source

Deterioration Law of Mechanical Properties of Insulation Pressboard Under Multifield Coupled Ageing

High Voltage, EarlyView.
ABSTRACT Converter transformers can experience progressive deterioration of their oil–pressboard insulation under elevated temperature, combined AC–DC electrical stress and persistent mechanical vibration. This study investigates how mechanical vibration affects the mechanical properties of insulation pressboard and clarifies the associated microscopic
Jiayi Chen, Guan Wang, Zihao Li, Zhongyu Zhao, Kuo Yan, Hongshun Liu   +5 more
wiley   +1 more source

Growth stresses and cellulose structural parameters in tension and normal wood from three tropical rainforest angiosperm species

BioResources, 2007
Few studies have been conducted about relation between cellulose para-meters and biomechanical properties of wood in tropical angiosperms species. For this purpose, on 13 trees from 3 species of French Guyana tropical rainforest in a clear active process
Thibaut, B., Yamamoto, H., Ruelle, J.
doaj  

Radial Variation in Microfibril Angle of Super and Common Teak Wood

Indonesian Journal of Forestry Research, 2008
Teak wood (Tectona grandis L.f.) is a well known and relatively slow growing hardwood species and popularly used as furniture and construction timber. Recently fast growing teak has been introduced which is named as super teak, as opposed and  existing common teak. The quality of super teak however, is being questioned and suspected to be not as common
openaire   +2 more sources

Structural insights into xyloglucan recognition by an ABC transporter from a Gram‐positive, thermophilic bacterium

The FEBS Journal, EarlyView.
Athe_2052 is an ABC transporter substrate‐binding protein that recognizes xyloglucan heptasaccharide (XXXG), a soluble breakdown product of plant xyloglucan. The crystal structure of Athe_2052, together with binding assays and computational modeling, shows how XXXG is recognized by this sugar transporter.
Hansen Tjo, Virginia Jiang, Philip D. Jeffrey, Angela Zhu, A. James Link, Jerelle A. Joseph, Jonathan M. Conway   +6 more
wiley   +1 more source

A Comprehensive Monte Carlo-Simulated Dataset of WAXD Patterns of Wood Cellulose Microfibrils

Data
Wide-angle X-ray diffraction analysis is a powerful tool for investigating the structure and orientation of cellulose microfibrils in plant cell walls, but the complex relationship between diffraction patterns and underlying structural parameters remains
Ricardo Baettig, Ben Ingram
doaj   +1 more source

Measuring the distribution of cellulose microfibril angles in primary cell walls by small angle X-ray scattering [PDF]

Plant Methods, 2014
Background X-ray scattering is a well-established method for measuring cellulose microfibril angles in secondary cell walls. However, little data is available on the much thinner primary cell walls. Here, we show that microfibril orientation distributions can be determined by small angle X-ray scattering (SAXS) even in primary cell walls.
Saxe, Friederike, Eder, Michaela, Benecke, Gunthard, Aichmayer, Barbara, Fratzl, Peter, Burgert, Ingo, Rüggeberg, Markus   +6 more
openaire   +5 more sources