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WOOD CELL [25 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-03-02

English

Subject field(s)
  • Petrography
DEF

A constituent intermediate between vitrinite and fusinite showing a well-defined structure of wood and sclerenchyma. The cell cavities, either round, oval, or elongated in cross section, vary in size but are generally smaller and sometimes less well defined than those of fusinite.

French

Domaine(s)
  • Pétrographie
DEF

Constituant à mi-chemin entre la vitrinite et la fusinite, de structure nette, habituellement régulière, de bois ou de sclérenchyme, et dont la dimension des cavités généralement plus petites et parfois moins apparentes que celles de la fusinite, varie sensiblement (à section ronde, ovale ou allongée).

Spanish

Save record 1

Record 2 2011-08-29

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
K2Cr2O7
formula, see observation
7778-50-9
CAS number
DEF

A chemical compound in the form of bright yellowish red transparent crystals, has a bitter metallic taste.

OBS

Utilization : Oxidizing agent(chemicals, dyes, intermediates), analytical reagent, brass pickling compositions, electroplating, pyrotechnics, explosives, safety matches, textiles, dyeing and printing, chrome glues and adhesives, chrome tanning leather, wood stains, poison fly paper, process engraving and lithography, synthetic perfumes, chrome alum manufacture, pigments, alloys, ceramic products, depolarizer in dry cell batteries, bleaching fats and waxes.

OBS

Chemical formula: K2Cr2O7

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
K2Cr2O7
formula, see observation
7778-50-9
CAS number
OBS

Formule chimique : K2Cr2O7

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
K2Cr2O7
formula, see observation
7778-50-9
CAS number
OBS

Fórmula química: K2Cr2O7

Save record 2

Record 3 2009-02-16

English

Subject field(s)
  • Xylology (The Study of Wood)
DEF

Moisture that is intimately associated with the finer wood elements of the cell wall by molecular absorption.

French

Domaine(s)
  • Xylologie (Étude des bois)
DEF

Eau renfermée dans les parois cellulaires du bois.

OBS

eau liée : terme retenu par le Comité technique de la terminologie française du bois de l'Association canadienne de normalisation.

Spanish

Campo(s) temático(s)
  • Xilología (Estudio de la madera)
Save record 3

Record 4 2007-11-28

English

Subject field(s)
  • Wood Products
  • Plant Diseases
CONT

Since bluing fungus does not attack the cell wall, except to a negligible extent, and feeds only upon the cell content, blued wood is not weakened.

Key term(s)
  • blue stained wood

French

Domaine(s)
  • Produits du bois
  • Maladies des plantes
CONT

Il arrive que l'on trouve du bois bleui en plus grandes quantités dans le commerce [...] La coloration bleuâtre ou noirâtre est provoquée par un champignon que transporte l'insecte, et apparaît souvent sous forme de traînées qui suivent le fil du bois. Cette coloration est sans danger, et elle n'affecte pas la résistance du bois.

Spanish

Save record 4

Record 5 2006-01-20

English

Subject field(s)
  • Woodworking
  • Joints and Connections (Construction)
DEF

A mechanical friction process allowing the assembly of timber by rotating wood dowels into wood substrates without any use of adhesives.

OBS

Glueless wood welding... is very quick. The process consists in applying rapid, alternating mechanical friction to the two wood surfaces to be welded, under some pressure. The equipment for this type of work already exists as it is used to weld thermoplastics joints as used in the car industry. At the very high temperatures attained by mechanical friction(higher than 180°C) the characteristics of the wood lignin and hemicellulose between the wood cell walls change, and start to flow, hence the initial phase of "melting".

French

Domaine(s)
  • Travail du bois
  • Joints et assemblages (Construction)
DEF

Méthode d'assemblage par friction de deux pièces de bois réalisé par la rotation à haute vitesse de chevilles de bois sans l'aide d'adhésifs.

OBS

[Le soudage du bois] s'appuie sur la fusion de certains polymères constituants du bois, la lignine et les hémicelluloses, lorsque la température à l'interface des deux pièces atteint 180 °C. Cela conduit à un enchevêtrement de fibres fortement comprimées localement.

Spanish

Save record 5

Record 6 2006-01-20

English

Subject field(s)
  • Woodworking
  • Joints and Connections (Construction)
DEF

The bonding of two flat pieces of timber through mechanical friction without adhesives.

OBS

Glueless wood welding... is very quick. The process consists in applying rapid, alternating mechanical friction to the two wood surfaces to be welded, under some pressure. The equipment for this type of work already exists as it is used to weld thermoplastics joints as used in the car industry. At the very high temperatures attained by mechanical friction(higher than 180ºC) the characteristics of the wood lignin and hemicellulose between the wood cell walls change, and start to flow, hence the initial phase "melting".

French

Domaine(s)
  • Travail du bois
  • Joints et assemblages (Construction)
DEF

Assemblage par friction des surfaces planes de deux pièces de bois sans l'aide d'adhésifs.

OBS

[Le soudage du bois] s'appuie sur la fusion de certains polymères constituants du bois, la lignine et les hémicelluloses, lorsque la température à l'interface des deux pièces atteint 180 ºC. Cela conduit à un enchevêtrement de fibres fortement comprimées localement.

Spanish

Save record 6

Record 7 2006-01-20

English

Subject field(s)
  • Woodworking
  • Joints and Connections (Construction)
DEF

[A] mechanical friction process allowing the assembly of timber without any use of adhesives.

CONT

Glueless wood welding... is very quick. The process consists in applying rapid, alternating mechanical friction to the two wood surfaces to be welded, under some pressure. The equipment for this type of work already exists as it is used to weld thermoplastics joints as used in the car industry. At the very high temperatures attained by mechanical friction(higher than 180ºC) the characteristics of the wood lignin and hemicellulose between the wood cell walls change, and start to flow, hence the initial phase of "melting".

French

Domaine(s)
  • Travail du bois
  • Joints et assemblages (Construction)
DEF

Procédé qui fait appel à la friction pour réaliser l'assemblage de deux pièces de bois sans recourir aux adhésifs.

OBS

[Le soudage du bois] s'appuie sur la fusion de certains polymères constituants du bois, la lignine et les hémicelluloses, lorsque la température à l'interface des deux pièces atteint 180 ºC. Cela conduit à un enchevêtrement de fibres fortement comprimées localement.

Spanish

Save record 7

Record 8 2005-08-08

English

Subject field(s)
  • Geochemistry
  • Air Pollution
  • Pollutants
  • Various Metal Ores
CONT

soot: Carbon particulate matter, the product of incomplete combustion. Soot is made of very finely divided carbon particles clustered together into long chains.

CONT

Where carbonaceous material is present, sulphides fill wood cells or replace cell walls.

French

Domaine(s)
  • Géochimie
  • Pollution de l'air
  • Agents de pollution
  • Minerais divers (Mines métalliques)
DEF

Matière qui contient du carbone.

CONT

Lorsque de la matière carbonée est présente, les sulfures en remplissent les cellules ligneuses ou remplacent les parois cellulaires.

Spanish

Save record 8

Record 9 2005-08-02

English

Subject field(s)
  • Xylology (The Study of Wood)
  • Ecosystems
  • Plant Biology
DEF

A physiological unit of living trees forming the structural unit of tree tissues, e.g. bast, cambium, cellulose, fiber, etc.

CONT

Where carbonaceous material is present, sulphides fill wood cells or replace cell walls.

French

Domaine(s)
  • Xylologie (Étude des bois)
  • Écosystèmes
  • Biologie végétale
DEF

Unité physiologique de tout arbre vivant composant la structure essentielle des vaisseaux ligneux.

CONT

Lorsque de la matière carbonée est présente, les sulfures en remplissent les cellules ligneuses ou remplacent les parois cellulaires.

Spanish

Save record 9

Record 10 2005-07-18

English

Subject field(s)
  • Plant Biology
  • Algae
  • Biotechnology
CONT

Where carbonaceous material is present, sulphides fill wood cells or replace cell walls.

CONT

Experiments conducted by Calmano et al. (1993) also show that oxidation of anoxic sediment causes remobilization of certain metals and their readsorption by environment elements, algae cell walls in particular.

French

Domaine(s)
  • Biologie végétale
  • Algues
  • Biotechnologie
CONT

Lorsque de la matière carbonée est présente, les sulfures en remplissent les cellules ligneuses ou remplacent les parois cellulaires.

CONT

Les expériences menées par Calmano et al. (1993) montrent également que l'oxydation de sédiments anoxiques entraîne la remobilisation de certains métaux et la réadsorption par les composantes du milieu, notamment sur les parois cellulaires des algues.

Spanish

Campo(s) temático(s)
  • Biología vegetal
  • Algas
  • Biotecnología
Save record 10

Record 11 2004-06-03

English

Subject field(s)
  • Plant Biology
  • Xylology (The Study of Wood)
DEF

Hardening of the cell walls of wood by lignification.

French

Domaine(s)
  • Biologie végétale
  • Xylologie (Étude des bois)
DEF

Durcissement de la membrane d'une cellule par lignification.

Spanish

Campo(s) temático(s)
  • Biología vegetal
  • Xilología (Estudio de la madera)
DEF

Endurecimiento de las paredes celulares de la madera por lignificación.

Save record 11

Record 12 2004-01-15

English

Subject field(s)
  • Paleontology
DEF

A process of fossilization whereby organic matter is converted into a stony substance by the infiltration of water containing dissolved inorganic matter ... which replaces the original organic materials, sometimes retaining the structure.

CONT

[Petrifaction produces] mineralized plant remains. They result when the wood or other structure is preserved by deposition of mineral material such as silica, pyrite, or calcium carbonate(calcite) along the cell walls.... the internal structure of the plant can be studied.

French

Domaine(s)
  • Paléontologie
DEF

Transformation (de structures organiques) par imprégnation de composés minéraux (silice, carbonate de calcium ...).

CONT

Suivant la nature du milieu, la minéralisation peut conduire à des fossiles de nature bien différente : siliceux, calcaires, magnésiens (coal-balls de la houille), pyriteux, talqueux ou charbonneux. [...] les végétaux silicifiés (tiges, troncs, racines) sont toujours admirablement conservés et leur tissus peuvent être étudiées au microscope comme ceux des plantes actuelles.

CONT

La pétrification de certains organismes permet leur fossilisation.

Spanish

Campo(s) temático(s)
  • Paleontología
DEF

Transformación en piedra.

Save record 12

Record 13 2003-12-10

English

Subject field(s)
  • Silviculture
  • Biotechnology
DEF

The process in which plant cells become woody by conversion of certain constituents of the cell wall into lignin, generally considered to include the hardening, and cementing of the cell walls in the formation of wood.

French

Domaine(s)
  • Sylviculture
  • Biotechnologie
DEF

Imprégnation des parois d'un tissu ou d'une cellule par de la lignine.

Spanish

Campo(s) temático(s)
  • Silvicultura
  • Biotecnología
DEF

Proceso por el que las células vegetales se convierten en leñosas mediante la transformación de algunos constituyentes de la pared celular en lignina.

Save record 13

Record 14 2003-02-04

English

Subject field(s)
  • Plant Biology
  • Beekeeping
  • Sugar Industry
DEF

A sweet viscid fluid, of various shades from nearly white to deep golden, being the nectar of flowers collected and worked up for food by certain insects, esp. the honey-bee.

PHR

Honey of borax.

PHR

Honey-heavy, honey-laden.

PHR

Honey bike, brake, -cake, colour, -crock, -cup, drink, -harvest, -knife, -mead, -pore, -scale, -shop, -time, wine.

PHR

Honey-coloured, -hearted, -lipped, -loaded, -steeped, -mouthed, -stored, -wooled.

PHR

Honey agaric, ant,-apple,-baby,-badger,-bag,-balm, banana,-basket,-bearer,-beer,-berry,-blob,-bloom,-bottle,-bread,-bucket,-bun,-bunch,-cell,-cherry, chile,-creeper,-dresser,-extractor,-fall,-farmer,-flow,-fly, fungus,-garlic,-gate,-gatherer,-gilding,-gland,-gold,-holder,-hunter,-kite,-locust,-lotus,-maker,-man,-mark,-meal,-mesquit,-moth,-mouse, mushroom,-pear,-people,-plant,-pod, possum,-rore,-soap,-sop,-spot,-stalks,-stomach,-sucker,-tear,-tube,-ware,-water,-week,-wood,-words,-worker.

PHR

Honey-bearing, -dropping, -eating, -flowing, -gathering, -making, -secreting, -storing, -yielding.

PHR

Borax, clover, corn, heather, stone, wood honey.

PHR

Clarified honey.

PHR

Live, unripe, virgin, white, wild honey.

French

Domaine(s)
  • Biologie végétale
  • Élevage des abeilles
  • Sucrerie (Industrie de l'alimentation)
DEF

Substance sirupeuse et sucrée, de couleur ambrée, que les abeilles élaborent dans leur jabot avec le nectar des fleurs ou d'autres matières végétales, et qu'elles dégorgent dans des alvéoles de cire pour la nourriture de leur communauté.

CONT

Les abeilles vont chercher le nectar des fleurs pour le convertir en miel.

PHR

Fourmi, mouche à miel.

PHR

Bonbon, préparation pharmaceutique au miel.

PHR

Couleur, gâteau, goût, jatte, parfum, pot de miel.

PHR

Douceur, production du miel.

PHR

Miel rosat, violat.

PHR

Miel de Narbonne, du Gâtinais; miel des fleurs.

PHR

Sentir le miel; séparer le miel de la cire.

Spanish

Campo(s) temático(s)
  • Biología vegetal
  • Cría de abejas
  • Industria azucarera
Save record 14

Record 15 2002-10-15

English

Subject field(s)
  • Xylology (The Study of Wood)
CONT

Fiber : A general term of convenience for any long, narrow cell of wood or bast, other than vessel elements and parenchyma... Often qualified as wood fibers(i. e. of the xylem) and bast fibers(of the phloem), the former including both the tracheids of Gymnospermae and the libriform wood-fibers and fiber-tracheids of woody Angiospermae.

French

Domaine(s)
  • Xylologie (Étude des bois)
DEF

Cellule longue et étroite, autre que les éléments de vaisseau et de parenchyme, disposée parallèlement à l'axe de l'arbre.

OBS

Sont comprises dans les fibres du bois, les trachéides des conifères et des feuillus.

Spanish

Campo(s) temático(s)
  • Xilología (Estudio de la madera)
Save record 15

Record 16 2002-08-14

English

Subject field(s)
  • Xylology (The Study of Wood)
CONT

Wood is composed of dead and living plant cells.... The green leaves consisting of living cells contain some proteins, considerable water and less cellulosic cell wall materials. The woody tissues are essentially composed of dead cells. The main components of the cell walls are cellulose microfibrils embedded in a matrix of hemicellulose and lignin.

French

Domaine(s)
  • Xylologie (Étude des bois)

Spanish

Campo(s) temático(s)
  • Xilología (Estudio de la madera)
Save record 16

Record 17 2002-01-30

English

Subject field(s)
  • Morphology and General Physiology
  • Natural History
  • Xylology (The Study of Wood)
DEF

An imperforate wood cell with bordered pits to congeneric elements.

CONT

... tracheids are elongated, spindle-shaped cells ... Such incomplete inner walls add strength, yet still permit a long tracheid to bend without breaking.

French

Domaine(s)
  • Morphologie et physiologie générale
  • Histoire naturelle
  • Xylologie (Étude des bois)
DEF

Cellule du bois non perforée qui communique avec les éléments congénères par des ponctuations aérolées.

Spanish

Campo(s) temático(s)
  • Morfología y fisiología general
  • Historia natural
  • Xilología (Estudio de la madera)
Save record 17

Record 18 2002-01-30

English

Subject field(s)
  • Treatment of Wood
DEF

The point in drying wood at which all free moisture has been removed from the cell itself while the cell wall remains saturated with absorbed moisture.

OBS

It usually is taken as 25% to 30% moisture content, based on oven dry weight.

OBS

fibre-saturation point: term reproduced with the permission of the copyright holder, CSA International, 178 Rexdale Blvd., Toronto, Ontario, Canada M9W 1R3. However, CSA International shall not be responsible for the manner in which the information is presented, nor for any interpretations thereof. This CSA International material may not have been updated to reflect amendments subsequently made to the original content. For further information, contact CSA International.

French

Domaine(s)
  • Traitement des bois
DEF

Degré d'humidité du bois lorsque toute l'eau libre en est extraite et que les parois des cellules sont encore saturées.

OBS

Au-delà de ce point, toute perte additionnelle d'eau se traduit par une variation dimensionnelle du bois.

OBS

point de saturation des fibres : terme retenu par le Comité technique de la terminologie française du bois de l'Association canadienne de normalisation.

Key term(s)
  • point de saturation des membranes

Spanish

Campo(s) temático(s)
  • Tratamiento de la madera
Save record 18

Record 19 2001-07-03

English

Subject field(s)
  • Equipment and Tools (Water Supply)
  • Wastewater Treatment
CONT

Fixed bed reactors. In fixed bed fermenters, the cells are immobilized by absorption on or entrapment in solid, non-moving solid surfaces. In one type of fixed bed fermenter, the cells are immobilized on the surfaces of immobile solid particles such as plastic blocks, concrete blocks, wood shavings or fibrous material such as plastic or glass wool. The liquid feed is either pumped through or allowed to trickle over the surface of the solids where the immobilized cells convert the substrates into products. Once steady state has been reached there will be a continuous cell loss from the solid surfaces. These types of fermenters are widely used in waste treatment and as biological filters in small aquarium water recycling systems.

French

Domaine(s)
  • Équipement et outillage (Alimentation en eau)
  • Traitement des eaux usées
DEF

Système comportant un matériel fixe qui supporte les microorganismes assurant l'épuration des eaux usées qui traversent le réacteur.

Spanish

Save record 19

Record 20 2001-02-28

English

Subject field(s)
  • Museums
  • Restoration of Works of Art (Museums and Heritage)
DEF

A wood preservation treatment developed by Parks Canada and the Canadian Conservation Institute for waterlogged artefacts which uses polyethylene glycol and computer data to slow down and stabilize the degradation process of the cells.

CONT

The sand and gravel were carefully washed from the interior of the scoop, and the wood surface was cleaned with an ultrasonic dental scaler and soft brushes. The PEGcon method(which employs software developed jointly by Parks Canada and CCI) was used to evaluate the condition of the wood and to calculate suitable polyethylene glycol(PEG) solutions for treatment. The cleaned scoop was then soaked in PEG solution as directed by PEGcon; the wood absorbed the PEG and the cell walls were protected against shrinkage and collapse.

French

Domaine(s)
  • Muséologie
  • Restauration d'œuvres d'art (Muséologie et Patrimoine)
DEF

Méthode de préservation des bois gorgés d'eau mise au point par Parcs Canada et l'Institut canadien de conservation qui fait appel à une solution de polyéthylène glycol jumelée aux calculs d'un logiciel afin de stabiliser la dégradation des cellules ligneuses.

OBS

Les polyéthylèneglycols (PEG) sont des polymères solubles dans l'eau dont le poids moléculaire varie en fonction du nombre de groupements d'oxyde d'éthylène n dans la molécule. [...] Les PEG 200 et PEG 400 sont liquides à température ambiante. Leur viscosité leur permet une rapide diffusion dans les matériaux organiques humides. Ils jouent un rôle de stabilisateur dimensionnel vis-à-vis de l'humidité, après séchage. La concentration en PEG 200 ou PEG 400 dans les solutions d'imprégnation des bois gorgés d'eau n'excède pas 20 % sinon la surface de l'objet après séchage serait trop hygroscopique. Elle est de 30 % pour le traitement des cuirs gorgés d'eau.

Spanish

Save record 20

Record 21 2000-10-24

English

Subject field(s)
  • Treatment of Wood
DEF

Improved wood in which the cell walls have been impregnated with synthetic resin and compressed so as to reduce materially the wood's shrinking and swelling, and increase its density and strength properties.

OBS

compreg: term standardized by ISO and BSI.

Key term(s)
  • resin-treated wood

French

Domaine(s)
  • Traitement des bois
DEF

Bois comprimé contenant une résine synthétique uniformément distribuée dans sa masse dans le but d'améliorer ou de modifier ses propriétés.

OBS

bois imprégné densifié : terme normalisé par l'ISO.

Key term(s)
  • bois imprégné-densifié

Spanish

Save record 21

Record 22 1998-11-28

English

Subject field(s)
  • Plant Diseases
  • Silviculture
  • Forestry Operations
DEF

A special type of rot, developing under very wet conditions... in the outer wood layers, caused by cellulose-destroying microfungi, e. g. chaetomium ssp. that attack the secondary cell walls and not the intercellular layer.

OBS

soft sap rot: term standardized by ISO.

French

Domaine(s)
  • Maladies des plantes
  • Sylviculture
  • Exploitation forestière
DEF

Altération caractérisée par un ramollissement superficiel du bois qui acquiert une teinte grisâtre et présente souvent, en outre, un fendillement dans les directions longitudinale et transversale.

OBS

pourriture molle : terme normalisé par l'ISO et par l'AFNOR; ramollissement : terme normalisé par l'AFNOR.

Spanish

Save record 22

Record 23 1998-11-06

English

Subject field(s)
  • Solid Fossil Fuels
  • Petrography
DEF

A constituent showing well-defined cellular structure of wood or sclerenchyma. The cell cavities vary in size and shape-round, oval, or elongated. Bogen structure is common.

French

Domaine(s)
  • Combustibles fossiles solides
  • Pétrographie
DEF

Constituant de bois ou de sclérenchyme, à structure cellulaire nette et régulière et dont les cavités cellulaires présentent des dimensions variées, à section ronde, ovale ou allongée. La structure en étoile est fréquente.

Spanish

Save record 23

Record 24 1993-02-25

English

Subject field(s)
  • Xylology (The Study of Wood)
  • Silviculture
CONT

For pulp fibers, many of the diagnostic features of cell formation seen in wood samples are lost. However, positive identification is possible by following a logical sequence of exclusion, and finally comparing unknown fibers with authenticated fiber samples and/or photomicrographs. The technique is straightforward, especially where only a limited number of choices are possible. The principal diagnostic feature is the shape and orientation of the cell wall openings(pits) in softwood earlywood tracheids and hardwood vessels which are unique for each species.

French

Domaine(s)
  • Xylologie (Étude des bois)
  • Sylviculture

Spanish

Save record 24

Record 25 1987-02-10

English

Subject field(s)
  • Wood Products
  • Reconstituted-Wood Products
DEF

Materials used in the manufacturing of sandwich panels.

OBS

Fabrication of sandwich panels.... Core Materials. Many lightweight materials, such as balsa wood, rubber or plastic foams, and formed sheets of cloth, metal, or paper, have been used as core for sandwich construction. Cores of formed sheet materials are often called honeycomb cores. By varying the sheet material, sheet thickness, cell size, and cell shape, cores of a wide range in density can be produced.

French

Domaine(s)
  • Produits du bois
  • Bois reconstitués
CONT

Les réseaux alvéolaires sont formés de lattes en placage contreplaqué, panneaux de fibres durs ou de particules. Ils sont très souvent constitués aussi par un matériau en nid d'abeilles déployable, formé de carton collé dont les mailles varient entre 20 et 60 mm selon les fabrications (...)

Spanish

Save record 25

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