摘要:
Method and apparatus for leak testing a closed container with at least one flexible wall area, whether or not the container undergoing leakage testing is is filled with a product or not. A biasing member is moved towards and onto the flexible wall area in order to apply a predetermined force and the accompanying reaction forces are monitored over time. The instant invention of this leakage or integrity testing system constitutes an improvement over conventional prior art pressure monitoring sytems by instead monitoring a biasing force applied by such biasing member to such flexible wall area at different times over a testing cycle, whereby storage of two biasing force values at different times allows the later processing of a difference signal that is generated by using two measured force signals over time to thus result in both a leak indicative signal and an updated compensating zero offset signal. Furthermore, the moving of the biasing member may be done at a constant rate or predetermined rate, or the moving accomplished by establishing a pressure difference between the inside of the container and its ambient surroundings, such as may be done by evacuating such surroundings by application of vacuum.
摘要:
A process for obtaining a consensus protein from a group of amino acid sequences of a defined protein family, proteins and polynucleotides so obtained, and compositions containing such proteins.
摘要:
In order to obtain a reliable idea of the state of tightness for tightness testing of containers filled with liquids in which a pressure differential .DELTA.p is created between the interior of the container and its exterior, and also relative to the container wall in contact with the filling, an impedance measurement (7) is performed using measuring electrodes (3a, 3b) on the exterior of container (1).
摘要:
A method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behavior of one of these pressures permitting the gas tightness of the container to be assessed. A pressure value is stored and subsequently compared with one of the pressures, the stored pressure value being stored electronically and compared with at least one value of the output signal from a pressure sensor. The container is housed in an enclosure which is connected to a pressure or suction line, and a pressure-value storage unit, a comparator unit and a pressure sensor are associated with the pressure or suction line.
摘要:
To test a closed container having at least one flexible wall area in order to determine a leakage by an increasing of the inner volume of the container and a measuring of a correspondingly caused changed measured value, at least one outer wall area of the container is exposed to a medium having a pressure which is greater than a pressure produced by the increase of the volume of the container if such has no leakage. The increase of the volume can be made by a pneumatic or mechanical application of a force at a flexible wall area. The arrangement is specifically suitable when the wall of the container or its contents strive to self-seal a leakage spot in a wall area.
摘要:
This invention relates to the production of 7-dehydrocholesterol, 25-hydroxy-7-dehydrocholesterol, and 25-hydroxy ergosterol in yeast such as Saccharomyces cerevisiae. It also relates to various enzymes catalyzing the reduction of the double bond at position 24 of lanosterol, dimethyl zymosterol, methyl zymosterol, zymosterol, cholesta-7, 24-dienol, or cholesta-5,7,24-trienol; or the hydroxylation at position 25 of ergosterol, 7-dehydrocholesterol, cholesta-8-enol, and cholesta-7-enol. It also relates to various nucleic acids encoding cholesterol C25-hydroxylases and sterol Δ24-reductases and their use to produce and hydroxylate 7-dehydrocholesterol or ergosterol. It also relates to the yeast strains so produced, and methods of making these sterols that include the steps of cultivaton a transformed yeast cell, and harvesting the resulting sterol(s).
摘要:
Close containers which are filled with a consumer product are tested on leakiness by means of mass spectrometry (10) in that an impact (AN(P)) by the consumer product (P) upon the surrounding atmosphere (A(P)) of the container to be leak tested is monitored by the mass spectrometry (10).
摘要:
Close containers which are filled with a consumer product are tested on leakiness by means of mass spectrometry (10) in that an impact (AN(P)) by the consumer product (P) upon the surrounding atmosphere (A(P)) of the container to be leak tested is monitored by the mass spectrometry (10).
摘要:
The present invention relates to newly identified mRNA stabilizing elements useful for the production of a target fermentation product, such as e.g. vitamins or enzymes, in particular riboflavin (vitamin B2), biotin, pantothenic acid (vitamin B5), folic acid, thiamin, pyridoxine (vitamin B6), vitamin B12, xylanase, amylase, protease, glucanase, amylomaltase or maltogenic amylase.
摘要:
A ball joint having an inner hub which has an inner hub axis and an outer surface, in which inner races and cage guide surfaces are arranged in the inner hub; an outer hub which has an outer hub axis and an inner surface, in which outer races and cage guide surfaces are arranged in the outer hub, and a cage which is ring-shaped and has a cage axis. The inner surface of the cage extends in the direction of the cage axis, the outer surface of the cage extends away from the direction of the cage axis, an inner race is constructed to extend straight and/or parallel to the inner hub axis, and an outer race is constructed to extend straight and/or parallel to the outer hub axis.