The proposed device is an electromagnetic inclinometer, consisting of a beam embedded at one end and of which the free end is rigidly connected to a seismic mass, this mechanical system allows the forces exerted on the seismic mass resulting from tilts relative to the horizontal to be converted into movements of the free end of the embedded beam, a magnetic circuit consisting of two flat windings is associated with this device, one winding is rigidly connected to the free end of the beam and the other is placed on a fixed support, the planes of the two windings are substantially parallel, the receiving winding placed on the mobile part of the mechanical system allows the movements to be converted into voltage via the transmitting winding and the conditioning circuit, said voltage is displayed by a digital voltmeter accurate to the nearest 0.01 mV. Calibrating the electromagnetic inclinometer from 0° to 90° allows it to be used in order to carry out measurements accurate to 0.01° ≤ Δθ ≤ 0.04°. The range of use of this inclinometer is between 0° and 90°, measurements can be repeated, and deformations of the beam can be perfectly reversed within this range of measurements, which can be broadened to an interval ranging from 0 to 180° by improving this device.
The invention relates to a phytotherapy product including carob syrup, aniseed powder, fenugreek powder, pollen and royal jelly. The product is useful in the treatment of anaemia.
The invention relates to a natural formula based on powders of aniseed, water-cress, herb ivy, lesser galangal, fenugreek and dry absinthe flower. Said formulation is a remedy against respiratory illnesses such as bronchitis, coughing and asthma, has expectorant, antiseptic and antispasmodic properties, is used against inflammations of the respiratory passages, and has a cleaning effect on toxic substances that cigarettes leave in these passages.
1. A Streptomyces sp. N02 strain, characterized by a 16S rDNA sequence SEQ No. 1. 2. A method for selecting a strain as claimed in claim 1, characterized in that it comprises the following steps - bringing a sample of the rhizosphere of the soil of the Middle Atlas mountains which may contain the Streptomyces sp. N02 strain into contact with a medium suitable for the selection of actinomycete strains, - treating said sample in order to isolate the actinomycete strains present, and - isolating the Streptomyces sp. N02 strain according to the ability of same to produce molecules which inhibit clover seed germination. 3. The use of a strain as claimed in claim 1, as a bioherbicide. 4. The use of the products of the strain as claimed in claim 1, for inhibiting seed germination and plant growth.
This invention relates to the use of the Amycolatopsis sp. RC21 strain, of a mutant strain or of an active compound for inhibiting the growth of the causal agent of tuberculosis, and/or inhibiting the proliferation of cancer cells and/or for an antioxidant effect. Likewise, the subject matter of the present invention is a novel actinomycete strain of endophytic nature, Amycolatopsis sp. RC21, characterized by a 16S rDNA sequence SEQ No. 1 deposited in the Pubmed/NCBI nucleotide database, or a mutant strain thereof, and also a method for selecting this strain. The invention is also directed towards a method for extracting and purifying active compounds from the Amycolatopsis sp. RC21 strain or from a mutant strain, and also the active compounds obtained.
The device provided is a tensiometer, it is an experimental device that allows the surface tension of liquids to be measured. It consists of: an electromagnetic force sensor, to which a rectangular strip of glass is attached by way of a rod that is securely fastened to it; a scissor lift; and a beaker that contains the liquid to be studied. Using the lift the beaker is gradually raised until the free surface of the liquid and the lower part of the strip, the width and thickness of which are known, make contact. Next, the beaker is gradually lowered using the scissor lift, the tension measured by the force sensor gradually increases as the beaker is lowered until the strip tearing limit, where the tension reaches its maximum value. Prior calibration of the sensor allows the tearing force of the strip to be calculated, and the surface tension of the liquid to be deduced therefrom. The measurement range of the electromagnetic force sensor (electromagnetic dynamometer) is comprised between 0 mN and 30 mN, and returns measurements with a precision of ΔF = 10-2 mN. By attaching an attachment to the electromagnetic force sensor, the surface tension of liquids may be measured simply by weighing N droplets of a given drop count, knowing its capillary diameter. In this case, the force sensor is used as an electromagnetic weighing scale the measurement range of which is between 0 g and 3 g, and returns values with a precision Δm = 1 mg. Surface tension measurements were carried out on water/ethanol mixtures using both techniques (strip tearing method and falling droplets of a drop count method), the results obtained by these two techniques were in very good agreement. Surface tension measurements were also carried out on pure liquids (distilled water, methanol and acetic acids) the results obtained were in very good agreement with results from the literature.
The invention relates to an electricity generator by means of which an air flow is generated with a fan, the air flow being used by a wind turbine to generate electricity. The fan is supplied with electricity by a hydroelectric system which consists of a vessel, a water turbine and a pond for feeding the vessel by means of a pump. The present invention describes a novel model for producing electricity using wind generated by a flow of water which circulates in a closed circuit.
F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations
F03B 13/14 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy
The invention relates to an experimental device in the form of a densimeter which can be used to obtain density measurements in relation to liquids and solids using Archimedes' principle, according to which any body immersed in a fluid in a state of equilibrium is subjected to a buoyancy force from the fluid and the intensity of said force is equal to the weight of the displaced fluid. The device comprises an electromagnetic force sensor, a plunger, and a container filled with liquid. The plunger, which is suspended from the sensor by a wire of negligible weight, is inserted into the liquid-filled container. The electromagnetic force sensor can be used to: measure the apparent weight of the plunger; and deduce the density of the plunger if the liquid is considered to be a reference liquid having a density that is known with great precision, or deduce the density of the liquid if the plunger is considered to be a reference plunger having a weight, volume and density that are known with great precision. The use range of the sensor is between 0 g and 10 g and the precision thereof is Δm = 3mg to 0g, and can reach 1.5 mg to 10 g. The accuracy of the density measurements provided by the densimeter depends on the characteristics of the sensor and those of the plunger. That is, the larger the volume of the plunger, the greater the sensitivity of the densimeter.
G01N 9/10 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
G01G 7/02 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups by electromagnetic action
G01G 19/18 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing suspended loads having electrical weight-sensitive devices
G01N 9/20 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by balancing the weight of the bodies
9.
DESIGN AND AUTOMATION OF A NOVEL VACUUM MOULDING UNIT
Le présent projet vise le domaine des procédés de fabrication des pièces de précision. Il s'agit d'un procédé de moulage sous vide, qui présente plusieurs avantages par rapport aux conceptions antérieurs, en se basant sur une nouvelle conception mécanique au niveau des châssis, en utilisant une liaison pivot (1 du schéma annexe), qui aide à leur ouverture et fermeture. La vertu de cette nouvelle conception a permis d'éliminer le poste de centrage, le poste du retournement des châssis et optimiser les mouvements des tuyaux de dépression; ce qui minimise l'encombrement des composants de l'installation, et d'économiser l'énergie consommée dans les déplacements des châssis, par la réduction du nombre d'actionneurs et les efforts qui doivent être appliqués. En outre, la nouvelle conception assure la fermeture et l'ouverture des châssis par des rails de guidage supérieurs (2 du schéma annexe). Ces derniers sont guidés, à leur tour, en translation par les rails inférieurs (3 du schéma annexe). En fait, cette conception facilite complètement l'automatisation du mécanisme, assure l'augmentation de la cadence de production et la réduction des efforts et des actionneurs, afin d'optimiser la consommation de l'énergie. Les axes accroches (4 du schéma annexe) sont des axes de la liaison pivot qui existent entre les châssis; à leur tour, ils assurent à la fois le guidage en rotation et la liaison temporaire avec le vérin de soulèvement des châssis, grâce à des doigts (5 du schéma annexe) qui sont équipés par des oreilles d'orientation (6 du schéma annexe). En effet, cette innovation permet de réduire le nombre des postes constituant les installations classiques de cinq à deux postes, en plus le choix du liant physique : dépression sous vide permettant la préservation de l'environnement et évite la perte du sable en le recyclant.
The proposed sensor is an electromagnetic sensor of forces. Its principle of operation relies on the phenomenon of influence by magnetic induction between two flat coils, of like diameter and comprising the same number of turns, situated a certain distance, x, apart, on one and the same axis passing through their centres. One of the coils is fixed on a horizontal support, and powered by a Wien oscillator, with precise conditions of phase and amplification. This coil generates a sinusoidal voltage of 84 Hz and of amplitude 2.5 V. The second flat coil is wound on an insulating cylinder, linked to the end of a spring. The other end of this same spring is attached to a fixed support. The second coil is therefore secured to the cylinder suspended vertically from the spring. The two coils, the spring and the cylinder are aligned on one and the same vertical axis. The cylinder plays the role of guidance, since it can move vertically and pass through an orifice on the contour of which is placed the fixed coil. At the lower end of the cylinder, we have fixed a hook making it possible to suspend masses or to attach a gauge for placing masses. The magnetic induction created by the fixed coil gives rise to an electromotive force at the terminals of the moving coil which depends on the distance x between the coils. When a mass is placed on the gauge, the spring elongates, the cylinder moves downwards, and the distance x between the coils decreases. This translates into an increase in the voltage across the terminals of the moving coil. The spring therefore plays the role of a force-displacement converter. The designed device is an electromagnetic sensor of forces, and can also be considered to be a displacement sensor: - sensor for forces: from 0 to 10 g, with an accuracy of 8 mg ≤ Δm ≤ 20 mg; - sensor for displacements: from 0 to 5 mm, with an accuracy of 4 μm ≤ Δx ≤ 10 μm. Under the best operating conditions, the accuracies of these sensors become: 4 mg ≤ Δm ≤ 10 mg and 2 μm ≤ Δx ≤ 5 μm. Finally, improvements could be made to this sensor, to make it more efficacious and conducive to numerous industrial applications.
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
G01L 5/16 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01G 3/02 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring
G01G 3/15 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of magnetic properties
G01G 7/02 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups by electromagnetic action
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