Relevant bibliographies by topics / Fibre processing

Academic literature on the topic 'Fibre processing'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Fibre processing.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Fibre processing"

1

Baltiņa, Ilze, Zaiga Zamuška, Veneranda Stramkale, and Guntis Strazds. "HEMP GROWTH AND FIBRE PROCESSING POSSIBILITIES IN LATVIA." Latgale National Economy Research 1, no. 4 (June 23, 2012): 42. http://dx.doi.org/10.17770/lner2012vol1.4.1822.

Full text
Abstract:
Use of hemp fibre is rapidly increasing in Europe. This tendency is related to carbon and glass fibre substitution with recycled and biodegradable raw materials for use in car production. Scientists and manufacturers work to obtain new composite materials where hemp fibre will be as reinforcement. Hemp fibres are light and with high tensile strength comparing with other technical fibres. Advantage – eco–friendly utilization possibilities. The research work to determine hemp fibre efficiency was carried out for two years at the Latgale Agricultural Research Centre. In this work different hemp fibre varieties were used. To determine the most suitable varieties for Latvian climatic conditions all the varieties were tested at the laboratories of Riga Technical University, Institute of Textile Material Technologies and Design. We are looking for new possibilities to make technical textile samples from different hemp fibre varieties. In cooperation with Laboratories of the Scientific Institute of Food Safety, Animal Health and Environment “BIOR” the amount of tetrahydrocannabinol (THC) in different variety cannabis plants were determined. It was concluded that amount of THC of different open–air cultivation varieties grown in Latvia is different but anyway this amount is much below the acceptable norm.
APA, Harvard, Vancouver, ISO, and other styles
2

Vasumathi, M., and Murali Vela. "Mechanical Behaviour of Chemically Treated Reshira-Epoxy Composite at Cryogenic Temperatures." Advanced Materials Research 488-489 (March 2012): 718–23. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.718.

Full text
Abstract:
Natural fiber composite has already proved its worth in various mechanical applications. Natural fibres with attractive properties such as low density, environment-friendliness and less processing work are widely available and provide an alternative to the conventional fibres. In this paper, the fibre reshira has been tried for the first time for cryogenic applications. Initially, the fibre is given chemical treatment with sodium hydroxide solution to enhance the adhesion between the fibre and the resin. The treated fibre is reinforced with epoxy resin and its properties such as storage modulus, loss modulus and Glass Transition Temperature are evaluated both at room temperature and under cryogenic conditions and these are compared to see which condition produces better mechanical performance.
APA, Harvard, Vancouver, ISO, and other styles
3

Zimniewska, Malgorzata. "Hemp Fibre Properties and Processing Target Textile: A Review." Materials 15, no. 5 (March 3, 2022): 1901. http://dx.doi.org/10.3390/ma15051901.

Full text
Abstract:
Over the last several decades, Cannabis sativa L. has become one of the most fashionable plants. To use the hemp potential for the development of a sustainable textile bio-product sector, it is necessary to learn about the effect of the processes creating hemp’s value chain on fibre properties. This review presents a multi-perspective approach to industrial hemp as a resource delivering textile fibres. This article extensively explores the current development of hemp fibre processes including methods of fibre extraction and processing and comprehensive fibre characteristics to indicate the challenges and opportunities regarding Cannabis sativa L. Presented statistics prove the increasing interest worldwide in hemp raw material and hemp-based bio-products. This article discusses the most relevant findings in terms of the effect of the retting processes on the composition of chemical fibres resulting in specific fibre properties. Methods of fibre extraction include dew retting, water retting, osmotic degumming, enzymatic retting, steam explosion and mechanical decortication to decompose pectin, lignin and hemicellulose to remove them from the stem with varying efficiency. This determines further processes and proves the diversity of ways to produce yarn by employing different spinning systems such as linen spinning, cotton and wool spinning technology with or without the use of the decortication process. The aim of this study is to provide knowledge for better understanding of the textile aspects of hemp fibres and their relationship to applied technological processes.
APA, Harvard, Vancouver, ISO, and other styles
4

Thumm, Armin, Damien Even, Pierre-Yves Gini, and Mathias Sorieul. "Processing and Properties of MDF Fibre-Reinforced Biopolyesters with Chain Extender Additives." International Journal of Polymer Science 2018 (December 16, 2018): 1–9. http://dx.doi.org/10.1155/2018/9601753.

Full text
Abstract:
Biopolyesters are a way to improve natural fibre composite sustainability. This study explores, for the first time, the potential of using medium density fibreboard (MDF) fibres to reinforce four biobased and biodegradable polyester matrices to create a fully “green composite.” Added at 30 wt %, MDF fibres did not improve the strength of the injection moulded NFCs and this deficiency was investigated by measuring fibre length, viscosity, and molecular weight of the matrices. Compared to other lignocellulosic fibres, the use of MDF fibres led to a molecular weight reduction of biopolyesters during processing. This effect was particularly striking for PLA. The addition of a chain extender enhanced the molecular weight of PLA and improved its processability. The tensile strength increase was correlated to a reduction of fibre pull-out, enabling the MDF fibre to fulfil its expected reinforcement role within the biopolyester composite.
APA, Harvard, Vancouver, ISO, and other styles
5

McGregor, B. A. "Production, properties and processing of American bison (Bison bison) wool grown in southern Australia." Animal Production Science 52, no. 7 (2012): 431. http://dx.doi.org/10.1071/an11213.

Full text
Abstract:
American bison grow a thick coat of fibres which assists them to withstand severe climatic conditions. Bison fibre was traditionally used in textiles by native North Americans. This study aimed to quantify the production, fibre attributes and dehairing processing of bison fibre produced from bison grazed in north-eastern Victoria. Three age/sex classes were sampled (n = 16) at seven body positions in spring. The fibre growing area was measured. Fibre was tested for diameter distribution, clean washing yield, proportion of fine fibres <36 µm and fine fibre length, and processed by cashmere dehairing. Bison were 1–2 years of age, liveweights 160–450 kg and had mean fibre growing area of 1.4 m2. They produced an average 1184 g (range 530–1640 g) of fine fibre with mean fibre diameter 18.5 µm, clean washing yield 76.5%, wax content 9.8%, suint content 14.5%, clean fine fibre yield 56.4%, fine fibre length 37 mm and fibre curvature was 93°/mm. Mid-side fibre had a crimp frequency of 6.5/cm and mean resistance to compression of 6.6 kPa. Fibre had a tenacity of 8.7 cN/tex and an extension of 39.3%. Restricted maximum likelihood mixed model analysis showed age/sex class and sampling site significantly affected all fibre attributes. Finer and longer fibre was produced in anterior sites and in younger bison. Fibre curvature declined 5.3°/mm for each 1-µm increase in mean fibre diameter. Dehaired fibre had a mean fibre diameter of 17.8 µm and mid-length of 28 mm, suitable for woollen spinning. The production by bison of coats containing significant amounts of fibre indicates that careful harvesting of fibre could form an important source of income in bison enterprises.
APA, Harvard, Vancouver, ISO, and other styles
6

Hernandez-Estrada, Albert, Mehedi Reza, and Mark Hughes. "The structure of dislocations in hemp (Cannabis sativa L.) fibres and implications for mechanical behaviour." BioResources 15, no. 2 (February 21, 2020): 2579–95. http://dx.doi.org/10.15376/biores.15.2.2579-2595.

Full text
Abstract:
Elementary fibres isolated from mechanically processed technical hemp were axially sectioned and imaged with transmission electron microscopy (TEM) to reveal details of the axial morphology of dislocations in the fibre. The overall aim was to investigate the detailed axial structural changes that the fibres undergo during processing, to help better understand the alterations in the deformation behaviour the fibres undergo following processing. The images showed the structure and morphology of dislocations as well as the different forms of damage that processing produced in the fibre structure, such as misalignment of the microfibrils, delamination, and buckled cellulose microfibrils. Furthermore, the results of this work show the ability that axial sectioning of the fibre has to reveal new details of the cell wall structure of hemp to offer new insights in the study of the fibre structure. In turn, the results of this work may help explain the mechanical behaviour of the fibres when they are loaded, as well as help explain the greater chemical accessibility of dislocations, for example, when the fibre is acid hydrolysed.
APA, Harvard, Vancouver, ISO, and other styles
7

Deng, Xinying, Ming Shun Hoo, Yi Wen Cheah, and Le Quan Ngoc Tran. "Processing and Mechanical Properties of Basalt Fibre-Reinforced Thermoplastic Composites." Polymers 14, no. 6 (March 17, 2022): 1220. http://dx.doi.org/10.3390/polym14061220.

Full text
Abstract:
Basalt fibre is derived from volcanic rocks and has similar mechanical properties as glass fibre. However, poor fibre-matrix compatibility and processing issues are the main factors that have restricted the mechanical performance of basalt fibre-reinforced thermoplastic composites (BFRTP). In this work, basalt continuous fibre composites with polypropylene (PP) and polycarbonate (PC) matrices were studied. The composites were processed by compression moulding, and a processing study was conducted to achieve good quality composites. For the BF-PC composites, the optimisation of material preparation and processing steps allowed the polymer to impregnate the fibres with minimal fibre movements, hence improving impregnation and mechanical properties. For BF-PP composites, a compatibiliser was required to improve fibre-matrix compatibility. The compatibiliser significantly improved the tensile and impact strength values for short BF-PP composites and continued to increase at 40 wt%. Furthermore, the analytical modelling of the Young’s moduli indicated that the induced fibre orientation during processing for short BF-PP composites and unidirectional (UD) BF-PC composites had better stress transfer than that of UD BF-PP composites.
APA, Harvard, Vancouver, ISO, and other styles
8

Pecenka, Ralf, Carsten Lühr, and Hans-Jörg Gusovius. "Design of Competitive Processing Plants for Hemp Fibre Production." ISRN Agronomy 2012 (July 24, 2012): 1–5. http://dx.doi.org/10.5402/2012/647867.

Full text
Abstract:
Despite an annually growing demand for natural fibres accompanied by worldwide increasing fibre prices as well as long tradition and experience in fibre processing, the production facilities for hemp and flax fibres are very limited in Europe. At present, the lack of modern harvesting and economic processing technologies seem to be the greatest obstacles for hemp fibre producers under the changing conditions of international raw material markets. Therefore, detailed investigations of all process stages of hemp fibre processing have been carried out at the Leibniz Institute for Agricultural Engineering (ATB). A novel hemp processing line has been developed, installed, and tested at industrial scale in the last 3 years. Investigations regarding optimum plant layout have shown that a straw throughput of approximately 4 t h−1 is required for economic fibre production for all new processing lines at currently high straw prices of more than 150 € t−1. Throughputs in the range from 4 to 6 t h−1 showed a favourable relation between profit and investment cost. At throughputs higher than 6 t h−1, the profit per ton processed straw can be further increased. But investment and straw logistic cost increase at these high-throughput levels often much faster.
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Jie, Hua Zhang, and Jian Chun Zhang. "Actions of Temperature on the Structure and Properties of Hemp Fibre." Advanced Materials Research 557-559 (July 2012): 1483–86. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.1483.

Full text
Abstract:
As to demonstrate the effect of treatment temperature on hemp fibre, this article recorded and compared the change of supramolecular structure and properties of hemp fibre under different processing temperature (150°C and -30°C). The result shows: the change of processing temperature can affect the crystallinity of hemp fibre, with the rise of treatment time, the crystallinity of fiber increases at high temperature and is contrary at low temperature. Meantime, the degree of thermodynamic change is higher at low processing temperature than that of high temperature. Furthermore, with the rise of treatment time, the moisture regain of fibre fluctuates under high temperature and rises under low temperature.
APA, Harvard, Vancouver, ISO, and other styles
10

Bolton, James. "The Potential of Plant Fibres as Crops for Industrial Use." Outlook on Agriculture 24, no. 2 (June 1995): 85–89. http://dx.doi.org/10.1177/003072709502400204.

Full text
Abstract:
At some time in the future, fibres produced on agricultural land will contribute significantly to the world fibre supply. Such fibres might come from residues or from dedicated fibre crops harvested annually. Dedicated fibre crops will become a reality sooner if agriculture can produce fibres more competitively than forestry. New markets for plant fibre may also help the farmer. Long-fibre crops (flax, hemp, kenaf) have particular promise providing that production costs are competitive with those for Third World fibres, or that a technological edge in processing can be established.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Fibre processing"

1

Korte, Sandra. "Processing-Property Relationships of Hemp Fibre." Thesis, University of Canterbury. Mechanical Engineering, 2006. http://hdl.handle.net/10092/1175.

Full text
Abstract:
There is great interest in the plant Cannabis sativa (hemp) as a source of technical fibres for the reinforcement of polymers in composite materials due to its high mechanical properties. As a natural fibre hemp also offers biodegradabilty and is therefore an inexpensive and renewable alternative to glass fibres However, the environmental benefits of natural fibres cannot be fully exploited if the manufacturing of their composites involves polluting processing steps. Unfortunately, there is still a lack of environmetally sustainable processing methods yielding technical fibres of sufficient quality. Enzyme application as a biotechnological processing method is a good candidate for this aim and is therefore actively investigated at present. In this work the effects of a range of enzymes on the morphological, compositional and mechanical properties of hemp was investigated. The enzymes were firstly characterised and then applied to hemp fibre for differing periods of time. After visual inspection, a set of fibre samples were selected and subjected to further analysis by Fourier-Transform Infrared Spectroscopy (FTIR), tensile testing and scanning electron microscopy (SEM). The commercial formulation Pectinex® Ultra-SL emerged as the most efficient in terms of treatment time and fibre quality. The effectiveness of treatments was further investigated by developing a novel experimental method that correlates the adhesion forces measured by atomic force microscopy (AFM) on the fibre surface to the properties of the fibres or composites. In order to identify correlations between the adhesion forces and fibre or composite properties, hemp fibre was subjected to four distinctly different treatments to obtain significant differences between fibre properties. The fibres and composites were then analyzed using a combination of FTIR, tensile testing, 3-point bend testing, dynamic mechanical analysis (DMA) and SEM. Based on this comprehensive dataset the AFM data was correlated using the software SPSS. The information derived from AFM (adhesion forces and surface topology) was useful in the clarification of fibre modifications evoked by the treatments.
APA, Harvard, Vancouver, ISO, and other styles
2

Islam, Mohammad Saiful. "The Influence of Fibre Processing and Treatments on Hemp Fibre/Epoxy and Hemp Fibre/PLA Composites." The University of Waikato, 2008. http://hdl.handle.net/10289/2627.

Full text
Abstract:
In recent years, due to growing environmental awareness, considerable attention has been given to the development and production of natural fibre reinforced polymer (both thermoset and thermoplastic) composites. The main objective of this study was to reinforce epoxy and polylactic acid (PLA) with hemp fibre to produce improved composites by optimising the fibre treatment methods, composite processing methods, and fibre/matrix interfacial bonding. An investigation was conducted to obtain a suitable fibre alkali treatment method to: (i) remove non-cellulosic fibre components such as lignin (sensitive to ultra violet (UV) radiation) and hemicelluloses (sensitive to moisture) to improve long term composites stability (ii) roughen fibre surface to obtain mechanical interlocking with matrices (iii)expose cellulose hydroxyl groups to obtain hydrogen and covalent bonding with matrices (iv) separate the fibres from their fibre bundles to make the fibre surface available for bonding with matrices (v) retain tensile strength by keeping fibre damage to a minimum level and (vi) increase crystalline cellulose by better packing of cellulose chains to enhance the thermal stability of the fibres. An empirical model was developed for fibre tensile strength (TS) obtained with different treatment conditions (different sodium hydroxide (NaOH) and sodium sulphite (Na2SO3) concentrations, treatment temperatures, and digestion times) by a partial factorial design. Upon analysis of the alkali fibre treatments by single fibre tensile testing (SFTT), scanning electron microscopy (SEM), zeta potential measurements, differential thermal analysis/thermogravimetric analysis (DTA/TGA), wide angle X-ray diffraction (WAXRD), lignin analysis and Fourier transform infrared (FTIR) spectroscopy, a treatment consisting of 5 wt% NaOH and 2 wt% Na2SO3 concentrations, with a treatment temperature of 120oC and a digestion time of 60 minutes, was found to give the best combination of the required properties. This alkali treatment produced fibres with an average TS and Young's modulus (YM) of 463 MPa and 33 GPa respectively. The fibres obtained with the optimised alkali treatment were further treated with acetic anhydride and phenyltrimethoxy silane. However, acetylated and silane treated fibres were not found to give overall performance improvement. Cure kinetics of the neat epoxy (NE) and 40 wt% untreated fibre/epoxy (UTFE) composites were studied and it was found that the addition of fibres into epoxy resin increased the reaction rate and decreased the curing time. An increase in the nucleophilic activity of the amine groups in the presence of fibres is believed to have increased the reaction rate of the fibre/epoxy resin system and hence reduced the activation energies compared to NE. The highest interfacial shear strength (IFSS) value for alkali treated fibre/epoxy (ATFE) samples was 5.2 MPa which was larger than the highest value of 2.7 MPa for UTFE samples supporting that there was a stronger interface between alkali treated fibre and epoxy resin. The best fibre/epoxy bonding was found for an epoxy to curing agent ratio of 1:1 (E1C1) followed by epoxy to curing agent ratios of 1:1.2 (E1C1.2), 1: 0.8 (E1C0.8), and finally for 1:0.6 (E1C0.6). Long and short fibre reinforced epoxy composites were produced with various processing conditions using vacuum bag and compression moulding. A 65 wt% untreated long fibre/epoxy (UTLFE) composite produced by compression moulding at 70oC with a TS of 165 MPa, YM of 17 GPa, flexural strength of 180 MPa, flexural modulus of 10.1 GPa, impact energy (IE) of 14.5 kJ/m2, and fracture toughness (KIc) of 5 MPa.m1/2 was found to be the best in contrast to the trend of increased IFSS for ATFE samples. This is considered to be due to stress concentration as a result of increased fibre/fibre contact with the increased fibre content in the ATFE composites compared to the UTFE composites. Hygrothermal ageing of 65 wt% untreated and alkali treated long and short fibre/epoxy composites (produced by curing at 70oC) showed that long fibre/epoxy composites were more resistant than short fibre/epoxy composites and ATFE composites were more resistant than UTFE composites towards hygrothermal ageing environments as revealed from diffusion coefficients and tensile, flexural, impact, fracture toughness, SEM, TGA, and WAXRD test results. Accelerated ageing of 65 wt% UTLFE and alkali treated long fibre/epoxy (ATLFE) composites (produced by curing at 70oC) showed that ATLFE composites were more resistant than UTLFE composites towards hygrothermal ageing environments as revealed from tensile, flexural, impact, KIc, SEM, TGA, WAXRD, FTIR test results. IFSS obtained with untreated fibre/PLA (UFPLA) and alkali treated fibre/PLA (ATPLA) samples showed that ATPLA samples had greater IFSS than that of UFPLA samples. The increase in the formation of hydrogen bonding and mechanical interlocking of the alkali treated fibres with PLA could be responsible for the increased IFSS for ATPLA system compared to UFPLA system. Long and short fibre reinforced PLA composites were also produced with various processing conditions using compression moulding. A 32 wt% alkali treated long fibre PLA composite produced by film stacking with a TS of 83 MPa, YM of 11 GPa, flexural strength of 143 MPa, flexural modulus of 6.5 GPa, IE of 9 kJ/m2, and KIc of 3 MPa.m1/2 was found to be the best. This could be due to the better bonding of the alkali treated fibres with PLA. The mechanical properties of this composite have been found to be the best compared to the available literature. Hygrothermal and accelerated ageing of 32 wt% untreated and alkali treated long fibre/PLA composites ATPLA composites were more resistant than UFPLA composites towards hygrothermal and accelerated ageing environments as revealed from diffusion coefficients and tensile, flexural, impact, KIc, SEM, differential scanning calorimetry (DSC), WAXRD, and FTIR results. Increased potential hydrogen bond formation and mechanical interlocking of the alkali treated fibres with PLA could be responsible for the increased resistance of the ATPLA composites. Based on the present study, it can be said that the performance of natural fibre composites largely depend on fibre properties (e.g. length and orientation), matrix properties (e.g. cure kinetics and crystallinity), fibre treatment and processing methods, and composite processing methods.
APA, Harvard, Vancouver, ISO, and other styles
3

Leedumrongwatthanakun, Saroch. "Quantum information processing with a multimode fibre." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS526.

Full text
Abstract:
Le transport à haut débit de données à travers des fibres optiques grâce au multiplexage spatial est en pratique limité par la diaphonie modale. Au lieu de considérer ce couplage modal comme une limitation, nous exploitons ici ce mélange de modes comme une ressource. Nous mettons en oeuvre un réseau optique linéaire programmable basé sur le concept de design photonique inverse, exploitant les techniques de mise en forme du front d’onde. Nous démontrons la manipulation d’interférences quantiques à deux photons sur divers réseaux linéaires, comprenant des degrés de liberté spatiaux et de polarisations. En particulier, nous vérifions expérimentalement la « zero transmission law » dans des interféromètres de Fourier et de Sylvester, permettant de quantifier le degré d’indiscernabilité d’un état d’entrée. De plus, grâce à la possibilité de mettre en oeuvre un réseau non unitaire, nous mettons en évidence l’anti-coalescence de photons dans toutes les configurations de sortie, et réalisons une expérience d’absorption cohérente. Nous démontrons ainsi l’aspect reconfigurable de l’implémentation de tels réseaux optiques linéaires dans des fibres multimodes. De plus, nous étudions les propriétés statistiques du speckle à un et à deux photons générés à partir de divers états d’entrée, après propagation dans une fibre multimode. Ces propriétés statistiques du speckle peuvent être utilisées pour extraire des informations sur la dimensionnalité, la pureté et l’indiscernabilité d’un état quantique inconnu, permettant ainsi leur classification. Ce travail met en évidence le potentiel du contrôle de front d’onde en milieux complexes pour le traitement quantique de l’information
Transport of information through a multimode optical fibre raises challenges when one wants to increase the data traffic using many spatial modes due to modal cross-talk and dispersion. Instead of considering those complex mixing of modes as a detrimental process, in this dissertation, we harness its mode mixing to process quantum optical information. We implement a reconfigurable linear optical network, a fundamental building block for scalable quantum technologies, based on an inverse photonic approach exploiting the technology of wavefront shaping. We experimentally demonstrate manipulation of two-photon quantum interference on various linear optical networks across both spatial and polarization degrees of freedom. In particular, we experimentally show the zero-transmission law in Fourier and Sylvester interferometers, which are used to certificate the degree of indistinguishability of an input state. Moreover, thanks to the ability to implement a non-unitary network, we observe the photon anti-coalescence effect in all output configurations, as well as the realization of a tunable coherent absorption experiment. Therefore, we demonstrate the reconfigurability, accuracy, scalability and robustness of the implemented linear optical networks for quantum information processing. Furthermore, we study the statistical properties of one-and two-photon speckles generated from various ground-truth states of light after propagating through a multimode fibre. These statistical properties of speckles can be used to extract information about the dimensionality, purity, and indistinguishability of an unknown input state of light, therefore allowing for state classification. Our results highlight the potential of complex media combined with wavefront shaping for quantum information processing
APA, Harvard, Vancouver, ISO, and other styles
4

Mahmood, Amjed Saleh. "Processing-performance relationships for fibre-reinforced composites." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/4181.

Full text
Abstract:
The present study considers the dependence of mechanical properties in composite laminates on the fibre architecture. The objective is to characterise the mechanical properties of composite plates while varying the fibre distribution but keeping the constituent materials unchanged. Image analysis and fractal dimension have been used to quantify fibre distribution and resin-rich volumes (RRV) and to correlate these with the mechanical properties of the fibre-reinforced composites. The formation, shape and size of RRV in composites with different fabric architectures is discussed. The majority of studies in literatures show a negative effect of the RRV on the mechanical behaviour of composite materials. RRV arise primarily as a result of (a) the clustering of fibres as bundles in textiles, (b) the stacking sequence, and/ or stacking process, (c) the resin properties and flow characteristics, (d) the heating rate as this directly affects viscosity and (e) the consolidation pressure. Woven glass and carbon/epoxy fabric composites were manufactured either by the infusion or the resin transfer moulding (RTM) process. The fractal dimension (D) has been employed to explore the correlation between fabric architecture and mechanical properties (in glass or/ carbon fibre reinforced composites with different weave styles and fibre volume fraction). The fractal dimension was determined using optical microscopy images and ImageJ with FracLac software, and the D has been correlated with the flexural modulus, ultimate flexural strength (UFS), interlaminar shear strength (ILSS) and the fatigue properties of the woven carbon/epoxy fabric composites. The present study also considers the dependence of fatigue properties in composite laminates on static properties and fibre architecture. Four-point flexural fatigue test was conducted under load control, at sinusoidal frequency of 10 Hz with amplitude control. Using a stress ratio (R=σmin/σmax) of 0.1 for the tension side and 10 for the compression side, specimens were subjected to maximum fatigue stresses of 95% to 82.5% step 2.5% of the ultimate flexural strength (UFS). The fatigue data were correlated with the static properties and the fibre distribution, in order to obtain a useful general description of the laminate behaviour under flexural fatigue load. The analysis of variance (ANOVA) technique was applied to the results obtained to identify statistically the significance of the correlations. Composite strength and ILSS show a clear dependence on the fibre distribution quantified using D. For the carbon fabric architectures considered in this study, the fatigue properties of composite laminates have significant correlations with the fibre distribution and the static properties of the laminates. The loss of 5-6 % in the flexural modulus of composite laminates indicates an increasing risk of failure of the composite laminates under fatigue loads. The endurance limits, based on either the static properties or the fibre distribution, were inversely proportional to the strength for all laminates.
APA, Harvard, Vancouver, ISO, and other styles
5

Pini, Niccolò. "Development and processing of novel Active Fibre Composites /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16904.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Svanberg, Maria. "Effects of processing on dietary fibre in vegetables." Lund : Dept. of Applied Nutrition and Food Chemistry, Lund Institute of Technology, Lund University, 1997. http://books.google.com/books?id=EcZtAAAAMAAJ.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Doroudiani, Saeed. "Microcellular wood-fibre thermoplastic composites, processing-structure-properties." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41016.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Penty, Richard Vincent. "Novel optical fibre Kerr devices for signal processing." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291606.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Millar, D. S. "Digital signal processing for coherent optical fibre communications." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1333248/.

Full text
Abstract:
In this thesis investigations were performed into digital signal processing (DSP) algorithms for coherent optical fibre transmission systems, which provide improved performance with respect to conventional systems and algorithms. Firstly, an overview of coherent detection and coherent transmission systems is given. Experimental investigations were then performed into the performance of digital backpropagation for mitigating fibre nonlinearities in a dual-polarization quadrature phase shift keying (DP-QPSK) system over 7780 km and a dual-polarization 16- level quadrature amplitude modulation (DP-QAM16) system over 1600 km. It is noted that significant improvements in performance may be achieved for a nonlinear step-size greater than one span. An approximately exponential relationship was found between performance improvement in Q-factor and the number for required complex multipliers. DSP algorithms for polarization-switched quadrature phase shift keying (PS-QPSK) are then investigated. A novel two-part equalisation algorithm is proposed which provides singularity-free convergence and blind equalisation of PS-QPSK. This algorithm is characterised and its application to wavelength division multiplexed (WDM) transmission systems is discussed. The thesis concludes with an experimental comparison between a PS-QPSK transmission system and a conventional DP-QPSK system. For a 42.9 Gb/s WDM system, the use of PS-QPSK enabled an increase of reach of more than 30%. The resultant reach of 13,640 km was, at the time of publication, the longest transmission distance reported for 40 Gb/s transmission over an uncompensated link with standard fibre and optical amplification.
APA, Harvard, Vancouver, ISO, and other styles
10

Alam, Shaif-ul. "Advanced fibre circuitry for all-optical signal processing." Thesis, University of Southampton, 2000. https://eprints.soton.ac.uk/15501/.

Full text
Abstract:
This thesis presents results of new types of fibre lasers and oscillators as well as a new all-fibre nonlinear modulator with nearly instantaneous response time. The development of a simple and stable, passively mode-locked source of picosecond pulses is described in chapter 2. Here the mode locking of the laser was obtained by using the combined effect of frequency-shifted feedback and a nonlinear amplifying loop mirror. The new cavity configuration allowed tuning of the laser continuously over 25 nm of the erbium gain bandwidth by using a bulk diffraction grating. The shortest reported pulse width (1.2 ps) from this type of laser has been demonstrated. A complete characterisation of the laser, including its mode locking build-up time, is presented. Cascaded nonlinearity in quadratic nonlinear materials is the basis in realising nonlinearity free optical amplifiers. Experimental results on cascaded nonlinearity in a periodically poled lithium niobate sample are presented in chapter 3. A nonlinear phase shift of more than 1.5p was obtained from only a 4 mm long sample due to its large effective nonlinear refractive index coefficient (~1 x 10-13 cm2/W). Experiments on the nonlinear phase shift compensation in an optical fibre and amplifier are presented in chapter 4. Phase shift compensation of more than 1.5p has been successfully demonstrated. Chapter 5 presents theoretical investigations on the modulation of optical signals using the stimulated Raman scattering (SRS) process in silica fibre. Numerical results reveal that to modulate signals in this scheme it is necessary to consider other competing nonlinear effects such as cascaded SRS, modulation instability etc. actively. Signal modulation as fast as 250 - 300 GHz can be realised using this intensity modulator. Chapter 6 describes the experimental results on the modulation of optical signal using SRS in optical fibre. With this Raman intensity modulator, bit-by-bit modulation of 10 Gbit/s simulated data stream has been demonstrated. An extinction ratio (modulation depth) of more than 15 dB was realised. The proposed intensity modulator can also be used as a time domain scalpel and can create a dark pulse in a bright background.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Fibre processing"

1

Beyreuther, Roland. Dynamics of fibre formation and processing: Modelling and application in fibre and textile industry. Berlin: Springer, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jarman, C. G. An industrial profile of coconut fibre extraction and processing. London: Tropical Development and Research Institute, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hoelstad, Torsten. Fibre length by electronic image analysis. København: Danmarks geologiske undersøgelse, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kaya, Cengiz. Processing and properties of alumina fibre-reinforced mullite ceramic matrix composites. Birmingham: University of Birmingham, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lo, Kah Wei. Quantitative measurements of fibre distribution of composite materials using image processing techniques. Poole: Bournemouth University, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Domb, Moshe Mario. Analysis of thermal residual stresses during processing of fibre-reinforced thermoplastic composites. [Toronto, Ont.]: University of Toronto, Graduate Dept. of Aerospace Science and Engineering, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jamieson, R. G. The effect of the sliping process on fibre diameter and subsequent wet processing. Christchurch: WRONZ, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sanderson, K. W. The fibre properties, processing performance and yarn properties of Stripper- and Spindle-picked cotton. Port Elizabeth: South African Wool and Textile Research Institute, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sanderson, K. W. A review of the effects of ginning practices on cotton fibre and yarn properties and processing performance. Port Elizabeth: SAWTRI, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cogswell, F. N. Thermoplastic aromatic polymer composites: A study of the structure, processing, and properties of carbon fibre reinforced polyetheretherketone and related materials. Oxford [England]: Butterworth-Heinemann, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Fibre processing"

1

Morton-Jones, D. H. "Fibre reinforced plastics." In Polymer Processing, 220–36. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0815-4_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jarman, Cyril. "Prelims - Plant Fibre Processing." In Plant Fibre Processing, i—viii. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1998. http://dx.doi.org/10.3362/9781780442990.000.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jarman, Cyril. "1. Plant Fibre Processing." In Plant Fibre Processing, 1–53. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1998. http://dx.doi.org/10.3362/9781780442990.001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Schmidt, Mario, Hannes Spieth, Christian Haubach, and Christian Kühne. "Direct processing from fibre to fibre moulded part." In 100 Pioneers in Efficient Resource Management, 398–401. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-56745-6_84.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cotter, D. "Nonlinearity in optical fibre communications." In Nonlinear Optics in Signal Processing, 322–62. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1560-5_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Taylor, C. C., M. R. Faghihi, and I. L. Dryden. "An understanding of muscle fibre images." In Image Analysis and Processing, 223–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-60298-4_262.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Dhange, V. K., S. M. Landage, and G. M. Moog. "Organic Cotton: Fibre to Fashion." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 275–306. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0878-1_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sawpan, M. A., K. L. Pickering, and Alan Fernyhough. "Hemp Fibre Reinforced Poly(Lactic Acid) Composites." In Advanced Materials and Processing IV, 337–40. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-466-9.337.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cole, Monica M. "The Fibre-processing, Textile, and Clothing Industries." In South Africa, 440–50. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003306702-34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Dhondt, Fieke, and Subramanian Senthilkannan Muthu. "Optimal Conditions for Hemp Fibre Production." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 37–50. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3334-8_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Fibre processing"

1

Andonovic, Ivan, Brian Culshaw, and Mohammed Shabeer. "Fibre Optic Signal Processing." In Optical Fibers and Their Applications V, edited by Ryszard S. Romaniuk and Mieczyslaw Szustakowski. SPIE, 1990. http://dx.doi.org/10.1117/12.952941.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Holmes, A. S., and R. R. A. Syms. "A Self-Aligning Guided Wave System For Delay-Line Signal Processing." In Fibre Optics '89, edited by Peter McGeehin. SPIE, 1989. http://dx.doi.org/10.1117/12.960974.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Turitsyn, Sergei K., and Sonia Boscolo. "All-optical nonlinear fibre signal processing." In 2009 11th International Conference on Transparent Optical Networks (ICTON). IEEE, 2009. http://dx.doi.org/10.1109/icton.2009.5185184.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Moguedet, M., J. Balcaen, Y. Be´reaux, and J. Y. Charmeau. "Modelling Processing of Unfilled and Long-Glass Fibre Reinforced Thermoplastics in a Screw-Barrel Unit." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82740.

Full text
Abstract:
In injection moulding, long glass fibre reinforced thermoplastics (LGFT) are an attractive way to produce large parts at low cost. The strength of the part depends chiefly on the average fibre length, fibres which are subjected to considerable attrition during processing in conventional three stage screws. First of all, in this study we have coupled a melting analysis in a conventional screw to a model of fibre breakage whereby a fibre anchored at one end in the solid bed is submitted, at its other end, to the intense shear stress of the molten polymer flowing in the film close to the barrel. As the melting of the solid bed progresses, more fibres are unlayered and submitted to bending which intensity is depending on both the fibre length and orientation. When the bending is too high, the fibre breaks. Bimodal fibre length distribution are obtained and compared to existing data. The sensibility of the model to main processing parameters such as screw rotation, initial fibre length, viscosity, barrel temperature and screw geometry are also investigated. Next, we present a new analytical solution for flow of a viscous fluid in a single screw channel that takes into account the torsion and curvature of the channel. Contrary to common knowledge in polymer processing based on the Parallel Plate Model, we found that, in the case of cross-sections with large aspect ratio, torsion effects can be significant. The implication of the model on velocity field, residence time and mixing efficiency is investigated and compared to the predictions of the classical Parallel Plate Model, to finite elements calculations, and to 3D experimental measurements. Indeed, an innovating device has been developed in our laboratory to visualize the flow of a viscous fluid in the channel of a screw. It consists of a transparent barrel and of a rotating screw, pumping a transparent viscous fluid at room temperature. A particle plunged in the flow is constantly monitored by four video-cameras placed around the barrel and recording its position in a frame. The 3D path lines are then computed.
APA, Harvard, Vancouver, ISO, and other styles
5

Lakshminarayanan, Vasudevan. "New Results in Biomedical Image Processing." In International Conference on Fibre Optics and Photonics. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/photonics.2012.t1a.2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Monzo´n, M. D., Z. Ortega, A. N. Beni´tez, P. M. Herna´ndez, M. D. Marrero, and I. Angulo. "Behaviour of Vacuum Casting Plastic Composites Under Different Treatments of Banana Fibres." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39782.

Full text
Abstract:
Nowadays, the natural fibres market is having an important growth due to the commitment of contemporary society with the sustainable development that leads the natural resources preservation and the environment protection. Fibres from banana food wastes provide high mechanical properties related to other natural fibers such as flax, sisal, hemp, etc. The aim of the present research work is to compare different banana fibres processing in order to improve the matrix fibre adhesion and behavior of fibre under processing conditions. Simple Anova analysis has been implemented on four different formulations: 1. No fibre processing, 2. Alkaline processing with Caustic Soda (NaOH), 3 Maleic Anhydride, 4. Combination of Soda and Maleic Anhydride. Several samples of MTT 8040 resin, under vacuum casting, with silicone moulds, conditions, have been done. Mechanical properties and efficiency factors of adhesion fibre-matrix have been determined and compared.
APA, Harvard, Vancouver, ISO, and other styles
7

French, Paul, Mo Naeem, Alexander Wolynski, and Martin Sharp. "Fibre laser material processing of aerospace composites." In ICALEO® 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2010. http://dx.doi.org/10.2351/1.5061935.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

French, Paul, Mo Naeem, Alexander Wolynski, and Martin Sharp. "Fibre laser material processing of aerospace composites." In ICALEO® 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2010. http://dx.doi.org/10.2351/1.5062047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cuny, T., P. Bettinelli, J. Le Calvez, R. Parker, R. Guerra, and M. Williams. "Variable Gauge Length Processing: DAS VSP Examples." In First EAGE Workshop on Fibre Optic Sensing. European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.202030008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ellmauthaler, A., M. LeBlanc, M. Willis, J. Maida, and G. Wilson. "Real-Time DAS VSP Acquisition and Processing." In First EAGE Workshop on Fibre Optic Sensing. European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.202030013.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Fibre processing"

1

Higgins, B. G., R. L. Powell, and You-Lo Hsieh. Processing of continuous fiber composites: Final report. Office of Scientific and Technical Information (OSTI), February 1989. http://dx.doi.org/10.2172/6165155.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Naskar, Amit K., Kokouvi M. Akato, Chau D. Tran, Ryan M. Paul, and Xuliang Dai. Low–Cost Bio-Based Carbon Fiber for High-Temperature Processing. Office of Scientific and Technical Information (OSTI), February 2017. http://dx.doi.org/10.2172/1345795.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Janke, C. J. Structure-Processing-Property Relationships at the Fiber-Matrix Interface in Electron-Beam Cured Composite Materials. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/2732.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Thompson, Louis B., Antonio P. Mallarino, and Kenneth T. Pecinovsky. Crop Response to Phosphorus in Fertilizer and Struvite Recovered from Corn Fiber Processing for Bioenergy. Ames: Iowa State University, Digital Repository, 2013. http://dx.doi.org/10.31274/farmprogressreports-180814-332.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Weisenberger, Matthew, and Ashley Morris. Precursor Processing Development for Low Cost, High Strength Carbon Fiber for Composite Overwrapped Pressure Vessel Applications. Office of Scientific and Technical Information (OSTI), March 2021. http://dx.doi.org/10.2172/1773155.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Szweda, A. Research & Development of Materials/Processing Methods for Continuous Fiber Ceramic Composites (CFCC) Phase 2 Final Report. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/836562.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Szweda, A. Research and development of material/processing methods for the Continuous Fiber Ceramic Composites Program. Monthly report, July 1994. Office of Scientific and Technical Information (OSTI), September 1994. http://dx.doi.org/10.2172/10180741.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gribok, Andrei V. Performance of Advanced Signal Processing and Pattern Recognition Algorithms Using Raw Data from Ultrasonic Guided Waves and Fiber Optics Transducers. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1495185.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Morgan, Roger J. Characterization of the Structure-Processing-Performance Relations of Phenylethynyl Phthalic Anhydride Crosslinked Fluorinated Polyimides (AFR-PEPA-N) and Their Carbon Fiber Composites. Fort Belvoir, VA: Defense Technical Information Center, April 2007. http://dx.doi.org/10.21236/ada468808.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hinkle, A. W., P. H. Jacobsen, and D. R. Lucas. Project W-026, Waste Receiving and Processing (WRAP) Facility Module 1: Maximum possible fire loss (MPFL) decontamination and cleanup estimates. Revision 1. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/10191560.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Fibre processing' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography