摘要:
The process for generating at least one warning signal relating to the level in a tank (3) for storing a product (4) comprises the following steps:the storage level of the product in the tank, together with the values of the product quantity consumed during predefined time intervals are determined,these values are placed in memory together with the associated measurement instants,at other successive instantsthe values placed in memory of the product quantity consumed are used to calculate a value of the estimated quantity of product which will be consumed in the future,this estimated value is subtracted from the last measurement value so as to obtain an estimated value of the storage level at a future instant,this estimated value of the storage level is compared with a preset threshold, anda warning signal is generated if the estimated value is less than the preset threshold.
摘要:
A compressed gas delivery vehicle includes a cooling system designed to cool the interior of a gas storage vessel containing adsorbent or absorbent material during filling of the vessel.
摘要:
Process for decontaminating, cleaning a solid organic substrate contaminated by solid radioactive particulate inorganic contaminants, in which: the said solid substrate is brought into contact with an extraction medium, devoid of water, comprising: dense pressurized CO2; at least one nonhalogenated surface-active compound chosen from block copolymers of poly(ethylene oxide) PEO and poly(propylene oxide) PPO, such as (EO)x-(PO)y diblock copolymers, (EO)x-(PO)y-(EO)x triblock copolymers and (PO)x-(EO)y-(PO), triblock copolymers, where x and y are integers from 2 to 80 with x other than y; and polydi(1 to 6C)alkylsiloxanes, such as polydimethylsiloxane (PDMS); and at least one complexing agent chosen from tributyl phosphate (TBP), crown ethers, tributylphosphine oxide, triphenylphosphine oxide and tri(n-octyl)phosphine oxide; the solid substrate and/or the extraction medium is/are subjected, simultaneously with the contacting operation, to a mechanical action.
摘要:
Connecting structures made of a tubular metal element. The structure has a tubular metal element which is connected to the orifice of a chamber. The chamber is made of a thin metal sheet. The structure also has a duct shaped connecting member which is sealed onto the other end of the tubular metal element. The structure may be used for producing fuel cells when the plate which forms parallel channels, is a current collector with gas circulating channels in contact with a proton-exchanging membrane.
摘要:
Dental cleansing device including a fork-shaped instrument with two arms capable of being connected to a pressurized fluid supply device. Each of the two arms (2,3) of the instrument (1) has, on its internal face, an orifice (15,16) for ejecting a water jet (17,18), the two orifices being directed so as to enable the ejection of non-aligned water jets in opposite directions. Each arm (2,3) may, in addition, have a needle eye (4,5) for the passage of a piece of interdental floss (6).
摘要:
A dental device for cleaning teeth includes a fork-shaped instrument with two arms, each arm having a free end and a needle eye near the free end, where the two arms are separated by a predetermined distance at a point of the needle eyes. A dental floss for use with the dental device includes a guide rod connected to one end of the dental floss and a stop button connected to another end of the dental floss such that the floss can be securely mounted to the forked-shaped instrument. The guide rod and stop button can be integrally molded with the dental floss, the entire assembly made from a strong, plastic material.
摘要:
A dental hygiene apparatus having five incurvated, flexible, rotating brushes mounted in a H-shaped arrangement on a housing which comprises an open brush holder portion matching with two opposed half dental arches and consists of an outer cheek-guard and an inner tongue-guard, and a closed biting portion provided with a pair of opposite restrictions for receiving the incisor teeth of the other two half dental arches.