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CRITICAL REACTION [12 records]
Record 1 - internal organization data 2025-04-23
Record 1, English
Record 1, Subject field(s)
- Chemical Elements and Compounds
Record 1, Main entry term, English
- high-purity solvent
1, record 1, English, high%2Dpurity%20solvent
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
High-purity solvents are essential for applications requiring minimal interference and maximum solvation efficiency. They are used in the synthesis of advanced materials, purification processes, and reaction media in pharmaceutical and chemical research. Their exceptional purity ensures accurate results and reproducibility in critical experiments and productions. 1, record 1, English, - high%2Dpurity%20solvent
Record 1, Key term(s)
- high purity solvent
Record 1, French
Record 1, Domaine(s)
- Éléments et composés chimiques
Record 1, Main entry term, French
- solvant de grande pureté
1, record 1, French, solvant%20de%20grande%20puret%C3%A9
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Un solvant de grande pureté peut être utilisé pour le nettoyage d'une grande variété de surfaces sans laisser de résidu graisseux ou d'odeur résiduelle. 2, record 1, French, - solvant%20de%20grande%20puret%C3%A9
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2015-04-29
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
Record 2, Main entry term, English
- relative importance
1, record 2, English, relative%20importance
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The average number of neutrons with the velocity and position of type B which must be added to a critical system to keep the chain reaction rate constant after removal of a neutron with the velocity and position of type A. 1, record 2, English, - relative%20importance
Record number: 2, Textual support number: 1 OBS
relative importance: term and definition standardized by ISO. 2, record 2, English, - relative%20importance
Record 2, French
Record 2, Domaine(s)
- Physique atomique
Record 2, Main entry term, French
- importance relative
1, record 2, French, importance%20relative
correct, feminine noun, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Nombre moyen de neutrons ayant la vitesse et la position de B qui doivent être ajoutés à un système critique pour maintenir constant le taux de réaction en chaîne après suppression d'un neutron ayant la position et la vitesse de A. 1, record 2, French, - importance%20relative
Record number: 2, Textual support number: 1 OBS
importance relative : terme et définition normalisés par l'ISO. 2, record 2, French, - importance%20relative
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2014-11-03
Record 3, English
Record 3, Subject field(s)
- Atomic Physics
- CBRNE Weapons
Record 3, Main entry term, English
- initiation
1, record 3, English, initiation
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The action which sets off a chain reaction in a fissile mass which has reached the critical state(generally by the emission of a "spurt" of neutrons). 1, record 3, English, - initiation
Record number: 3, Textual support number: 1 OBS
initiation: term and definition standardized by NATO in the AAP-6 standard published in 1998, but not included in the 2014 version. 2, record 3, English, - initiation
Record 3, French
Record 3, Domaine(s)
- Physique atomique
- Armes CBRNE
Record 3, Main entry term, French
- amorçage
1, record 3, French, amor%C3%A7age
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Action provoquant la réaction en chaîne dans une masse fissile ayant atteint l'état critique (en général par émission d'une «bouffée» de neutrons). 1, record 3, French, - amor%C3%A7age
Record number: 3, Textual support number: 1 OBS
amorçage : terme et définition normalisés par l'OTAN dans la norme AAP-6 de 1998, mais non repris dans l'édition de 2014. 2, record 3, French, - amor%C3%A7age
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física atómica
- Armas QBRNE
Record 3, Main entry term, Spanish
- iniciación
1, record 3, Spanish, iniciaci%C3%B3n
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
La acción que origina una reacción en cadena en una masa fisionable, que ha alcanzado el estado crítico (generalmente por la emisión de neutrones acelerados). 1, record 3, Spanish, - iniciaci%C3%B3n
Record 4 - internal organization data 2011-08-09
Record 4, English
Record 4, Subject field(s)
- Biological Sciences
Record 4, Main entry term, English
- optimum temperature
1, record 4, English, optimum%20temperature
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- temperature optimum 2, record 4, English, temperature%20optimum
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Temperature at which an enzyme exhibits maximal activity under specified conditions. 1, record 4, English, - optimum%20temperature
Record number: 4, Textual support number: 1 CONT
Although enzyme-catalyzed reactions often appear to have an optimum temperature, the peak in such a plot of catalytic activity vs. temperature results because enzymes, being proteins, are denatured by heat and become inactive as the temperature is raised beyond a certain point. The apparent temperature "optimum" is thus the resultant of two processes :(1) the usual increase in reaction rate with temperature and(2) the increasing rate of thermal denaturation of the enzyme above a critical temperature. 3, record 4, English, - optimum%20temperature
Record 4, French
Record 4, Domaine(s)
- Sciences biologiques
Record 4, Main entry term, French
- température optimale
1, record 4, French, temp%C3%A9rature%20optimale
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Température à laquelle la vitesse de réaction enzymatique atteint une valeur maximale. 2, record 4, French, - temp%C3%A9rature%20optimale
Record number: 4, Textual support number: 1 CONT
La température optimale est un compromis entre le fait que l'élévation de température augmente la vitesse de réaction et qu'en même temps, elle dénature l'enzyme. Il est difficile de donner une valeur précise à la température optimale d'une réaction enzymatique, la vitesse de dénaturation de l'enzyme étant fonction du pH et de la durée de la réaction. (...) Plus le temps est court, plus la température optimale peut être élevée. 3, record 4, French, - temp%C3%A9rature%20optimale
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Ciencias biológicas
Record 4, Main entry term, Spanish
- temperatura óptima
1, record 4, Spanish, temperatura%20%C3%B3ptima
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2009-10-07
Record 5, English
Record 5, Subject field(s)
- Nuclear Fission Reactors
Record 5, Main entry term, English
- critical excursion
1, record 5, English, critical%20excursion
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Unlike reactor cores, nuclear fuel cycle installations do not have their own resources provided at the design stage to regulate or stop any uncontrolled chain reaction. Critical excursion is a phenomenon that occurs quickly and of which there are few physical warning signs. 1, record 5, English, - critical%20excursion
Record 5, French
Record 5, Domaine(s)
- Réacteurs nucléaires de fission
Record 5, Main entry term, French
- excursion critique
1, record 5, French, excursion%20critique
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Si, dans une configuration fissile donnée, le coefficient de multiplication [...] dépasse accidentellement 1, la source de neutrons dans le système croît, en première approximation, exponentiellement à partir de sa valeur initiale S0 en un temps très court, le taux de fissions variant de la même façon. La source initiale de neutrons résulte du rayonnement cosmique et de réactions internes au système [...]. Cette réaction en chaîne, appelée excursion critique, provoque une émission de chaleur croissante et des flux intenses de rayons bêta, gamma et de neutrons à l'intérieur et à l'extérieur du système. 1, record 5, French, - excursion%20critique
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2006-08-08
Record 6, English
Record 6, Subject field(s)
- Animal Diseases
- Poultry Production
Record 6, Main entry term, English
- gizzard erosion
1, record 6, English, gizzard%20erosion
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Gizzard erosion is a condition seen in broiler chickens caused by gizzerosine toxicity. 3, record 6, English, - gizzard%20erosion
Record number: 6, Textual support number: 1 OBS
Gizzerosine is formed by a reaction between the 3 amino group of lysine with free histidine during the heating of fish meal. The amount of heat to which fish meal is exposed during the drying process is critical in the formation of gizzerosine. 3, record 6, English, - gizzard%20erosion
Record number: 6, Textual support number: 2 OBS
So far gizzerosine toxicity have only been described in chickens, possibly due to the high level of fish meal in the diets of this species ... The question of the influence of gizzerosine on horses and other species is however still unanswered. 3, record 6, English, - gizzard%20erosion
Record 6, French
Record 6, Domaine(s)
- Maladies des animaux
- Élevage des volailles
Record 6, Main entry term, French
- érosion du gésier
1, record 6, French, %C3%A9rosion%20du%20g%C3%A9sier
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Une équipe japonaise vient de reproduire expérimentalement une forte érosion du gésier sur des poulets de chair de différents âges, en leur inoculant un Adénovirus aviaire de type I (souche 99ZH). 3, record 6, French, - %C3%A9rosion%20du%20g%C3%A9sier
Record number: 6, Textual support number: 1 OBS
Il a été signalé que la gizzérosine provoque l'érosion du gésier (EG) chez les poulets [...] 2, record 6, French, - %C3%A9rosion%20du%20g%C3%A9sier
Record number: 6, Textual support number: 2 OBS
érosion : lésion de la peau ou d'une muqueuse avec perte de substance très superficielle. 4, record 6, French, - %C3%A9rosion%20du%20g%C3%A9sier
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2003-12-10
Record 7, English
Record 7, Subject field(s)
- Combustion and Fuels (Fireplaces)
- Heat (Physics)
Record 7, Main entry term, English
- condensed-phase combustion
1, record 7, English, condensed%2Dphase%20combustion
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- condensed phase combustion 2, record 7, English, condensed%20phase%20combustion
- gasless phase combustion 3, record 7, English, gasless%20phase%20combustion
- solid-solid phase combustion 3, record 7, English, solid%2Dsolid%20phase%20combustion
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
A certain class of ceramic and metallic materials can be manufactured by the self-propagating high-temperature synthesis method. Even though by now this process has included reaction systems of the solid-gas and solid-liquid types, the original work was directed towards the reactions investigated where not only the reactants but also the final products formed in the solid phase. These reactions are therefore generally referred to as gasless, solid-solid or condensed phase combustion reactions. 3, record 7, English, - condensed%2Dphase%20combustion
Record number: 7, Textual support number: 2 CONT
Condensed phase combustion is a complex phenomenon of theoretical and practical interest, in particular, as a method to synthesize materials. This combustion synthesis process involves a self-sustained combustion wave which propagates through initial reactants converting them into a desired product. In condensed phase combustion the initial reactants as well as final, and possibly intermediate products, remain in the condensed phase throughout the reaction. Though the combustion process occurs in a heterogeneous medium composed of reactive particles, typical models of condensed phase combustion treat the medium as homogeneous. 4, record 7, English, - condensed%2Dphase%20combustion
Record number: 7, Textual support number: 3 CONT
A deflagration analysis of porous energetic materials with two-phase flow and a multiphase sequential reaction mechanism. ... A theoretical analysis for the unconfined deflagration of a porous energetic material is developed for a two-step global reaction mechanism that consists of the condensed-phase combustion of the reactive material to produce gas-phase intermediates, followed by a gas-phase reaction that produces final gas-phase products. 1, record 7, English, - condensed%2Dphase%20combustion
Record number: 7, Textual support number: 1 OBS
Combustion is a chemical reaction, it gives off heat and is self-sustaining. It can occur in a condensed-phase(glowing), a gas-phase(flame) or both. Fire results when a combustible material(fuel) in the presence of an oxidizing agent(oxygen) is heated to a critical temperature(ignition temperature). 5, record 7, English, - condensed%2Dphase%20combustion
Record 7, French
Record 7, Domaine(s)
- Combustion et combustibles (Foyers)
- Chaleur (Physique)
Record 7, Main entry term, French
- combustion en phase condensée
1, record 7, French, combustion%20en%20phase%20condens%C3%A9e
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Synthèse auto-propagée à haute température. La synthèse auto-propagée est un processus de combustion en phase condensée (en anglais «SHS» - «self-propagating high temperature synthesis») développé pour produire des céramiques et des matériaux refractaires. 1, record 7, French, - combustion%20en%20phase%20condens%C3%A9e
Record number: 7, Textual support number: 1 OBS
état condensé : État de la matière dans lequel les atomes du corps sont très proches les uns des autres. (Les états solide et liquide sont des états condensés). 2, record 7, French, - combustion%20en%20phase%20condens%C3%A9e
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2003-06-17
Record 8, English
Record 8, Subject field(s)
- Biological Sciences
- Biotechnology
Record 8, Main entry term, English
- transamination
1, record 8, English, transamination
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
A critical reaction in all organisms is the transfer of an amino group from one carbon skeleton to another by the process of transamination. Frequently, the most active exchange is between glutamate and aspartate.... This reaction is catalyzed by aspartate aminotransferase(also known as glutamate-oxaloacetate transaminase, glutamate-aspartate transaminase, and similar permutations). 2, record 8, English, - transamination
Record 8, French
Record 8, Domaine(s)
- Sciences biologiques
- Biotechnologie
Record 8, Main entry term, French
- transamination
1, record 8, French, transamination
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
On connaît maintenant la quasi-totalité des amino-transférases (transaminases) capables d'assurer la transamination de tous les amino-acides (E.C. 2.6.1....). Toutes ces transaminases fonctionnent avec un coenzyme commun, le phosphate de pyridoxal, selon un mécanisme moléculaire bien connu. Dans les cellules encaryotes, ces enzymes sont localisés à la fois dans le cytosol et dans les mitochondries : il en existe ainsi plusieurs variétés moléculaires séparables par électrofocalisation. 2, record 8, French, - transamination
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Ciencias biológicas
- Biotecnología
Record 8, Main entry term, Spanish
- transaminación
1, record 8, Spanish, transaminaci%C3%B3n
correct, feminine noun
Record 8, Abbreviations, Spanish
Record 8, Synonyms, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1989-10-16
Record 9, English
Record 9, Subject field(s)
- Helicopters (Military)
- Flight Controls (Aeroindustry)
Record 9, Main entry term, English
- aft cyclic 1, record 9, English, aft%20cyclic
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The natural reaction of applying lift pedal and aft cyclic in an attempt to stop the sudden yaw and rolling moments of the aircraft would only exacerbate this already critical situation. 1, record 9, English, - aft%20cyclic
Record 9, French
Record 9, Domaine(s)
- Hélicoptères (Militaire)
- Commandes de vol (Constructions aéronautiques)
Record 9, Main entry term, French
- aft cyclique
1, record 9, French, aft%20cyclique
masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- pas cyclique vers l'arrière 2, record 9, French, pas%20cyclique%20vers%20l%27arri%C3%A8re
proposal, masculine noun
Record 9, Textual support, French
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 1989-05-23
Record 10, English
Record 10, Subject field(s)
- Blasting Work (Mining)
Record 10, Main entry term, English
- propagation sensitivity
1, record 10, English, propagation%20sensitivity
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
The second aspect of performance sensitivity is usually distinguished by the name of Propagation Sensitivity, which is a measure of the ability of an explosive to support or reinforce a detonation that has already been created. Since the tendency for the detonation wave to fail or fade increases as the hole diameter is reduced, it has become customary to measure propagation sensitivity by the(minimum) critical diameter of a charge at least six diameters long that will support the detonation process once created. At a point below this value, a detonation wave cannot be consistently propagated, and a misfire... may occur; or otherwise the reaction may be incomplete, resulting in a poor blast effect and significant fume. 1, record 10, English, - propagation%20sensitivity
Record 10, French
Record 10, Domaine(s)
- Travail aux explosifs (Exploitation minière)
Record 10, Main entry term, French
- sensibilité à l'onde explosive
1, record 10, French, sensibilit%C3%A9%20%C3%A0%20l%27onde%20explosive
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Sensibilité à l'onde explosive. C'est une caractéristique très importante car elle conditionne la transmission de la détonation dans une file de cartouches. La Commission de Normalisation a adopté comme critère le coefficient de transmission de détonation (CTD), (...) La sensibilité à l'onde explosive est fonction de la densité de l'explosif et de son état (pulvérulent, gélatineux, fondu). Quand la densité est trop élevée, surtout avec les explosifs nitratés, l'onde explosive provoquée par le détonateur peut ne pas agir, ou s'arrêter en cours de propagation : on a alors un raté, ou un culot d'explosif. 2, record 10, French, - sensibilit%C3%A9%20%C3%A0%20l%27onde%20explosive
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 1988-10-26
Record 11, English
Record 11, Subject field(s)
- Blasting Work (Mining)
Record 11, Main entry term, English
- critical diameter
1, record 11, English, critical%20diameter
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
The second aspect of performance sensitivity is usually distinguished by the name of Propagation Sensitivity, which is a measure of the ability of an explosive to support or reinforce a detonation that has already been created. Since the tendency for the detonation wave to fail or fade increases as the hole diameter is reduced, it has become customary to measure propagation sensitivity by the(minimum) critical diameter of a charge at least six diameters long that will support the detonation process once created. At a point below this value, a detonation wave cannot be consistently propagated, and a misfire... may occur; or otherwise the reaction may be incomplete, resulting in a poor blast effect and significant fume. 2, record 11, English, - critical%20diameter
Record 11, French
Record 11, Domaine(s)
- Travail aux explosifs (Exploitation minière)
Record 11, Main entry term, French
- diamètre critique
1, record 11, French, diam%C3%A8tre%20critique
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 DEF
Diamètre d'une charge cylindrique de substance explosive au-dessous duquel cette substance ne peut pas détoner. 2, record 11, French, - diam%C3%A8tre%20critique
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 1986-03-27
Record 12, English
Record 12, Subject field(s)
- Semiconductors (Electronics)
- Industrial Techniques and Processes
Record 12, Main entry term, English
- gettering column 1, record 12, English, gettering%20column
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 CONT
In most metallic [solar collector] systems, especially those using a number of metals or a reactive metal such as aluminum, the heat transfer fluid can have a significant impact on corrosion. In aqueous solutions, the concentration of dissolved chemicals, heavy metal ions, and pH of the fluid must be controlled. Deionized or demineralized water has been used successfully but additional steps are usually taken. These include the use of a gettering column to trap heavy metal ions before they enter critical parts of the system and inhibitors which stabilize the metal ions and reduce their reaction with less noble metals. 1, record 12, English, - gettering%20column
Record 12, French
Record 12, Domaine(s)
- Semi-conducteurs (Électronique)
- Techniques industrielles
Record 12, Main entry term, French
- colonne filtre
1, record 12, French, colonne%20filtre
feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record 12, Spanish
Record 12, Textual support, Spanish
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