摘要:
@ A growth factor containing serum derived from natural bovine serum by precipitating a first solids fraction from natural bovine serum by adding ammonium sulfate to about 25% saturation to give a first solids fraction and a first supernatant; separating said first solids fraction from said first supernatant; precipitating a second solids fractions from said first supernatant by adding ammonium sulfate to about 40% saturation to give a second solids fraction and a second supernatant; separating said second solids fraction from said second supernatant; combining said first solids fraction and said second supernatant; and desalinating said first solids fraction and said second supernatant, either before or after said combining.
摘要:
Une machine d'emballage comprend a) une tourelle (1) de remplissage de sacs, à rotation intermittente et ayant une pluralité de stations de réception de sacs, b) un fournisseur (4) de sacs, c) une unité de transport (5) de sacs pour prendre des sacs vides, en séquence ou deux par deux, chez ledit fournisseur de sacs et pour les livrer deux par deux à une première position de réception de la tourelle de remplissage, d) des dispositifs (2, 3) pour fournir les matières destinées à être emballées en portions mesurées à ladite tourelle, dans une deuxième position de réception de celle-ci, e) un dispositif (33) pour décharger de la tourelle les portions mesurées dans les sacs disposés deux par deux f) un dispositif d'enlèvement (6) des sacs, pour enlever les sacs remplis d'une position de livraison de la tourelle.
摘要:
Membranes de filtres à tubes creux microporeux modifiés par la charge. Les tubes comprennent une membrane de filtre microporeuse en polymère organique possédant une microstructure sur toute sa surface, et une certaine quantité d'agent modifiant la charge lié sur pratiquement toute la microstructure de la membrane sans réduction sensible de la taille des pores ou blocage des pores. Ces tubes creux microporeux modifiés par la charge peuvent être utilisés pour la filtration de fluides, notamment de liquides parentéraux ou biologiques contaminés par une substance particulaire chargée, ainsi que pour la plasmaphorèse et d'autres applications de filtrage à écoulement transversal. Les tubes présentent une faible teneur en substances pouvant être extraites et sont stérilisables ou hygiénisables.
摘要:
This invention relates to a method and apparatus for compensating the output signal of a reflection type eddy current probe so as to minimize the change in the phase shift of the probe output signal that otherwise would occur as a result of a change in the spacing of the probe from the surface of the metal sample being inspected or investigated.
摘要:
A process for converting cigarette tobacco winnowings into usable form for cigarette making, comprises crushing the winnowings, which have a moisture content compatible with cigarette making, effecting a first sieving operation on the resulting crushed winnowings, and effecting a second sieving operation on the smaller fraction resulting from the first sieving operation to remove particles unsuitable for direct use. Any larger fraction resulting from the first sieving operation may be subjected to cutting and thereafter a third sieving operation. Suitable apparatus for converting cigarette tobacco winnowings having a moisture content compatible with cigarette making into usable form for cigarette making, comprises crushing rollers (11, 12) to which the winnowings are fed, a sieve (18) arranged to receive the crushed winnowings from the crusher, and a second sieve (19) provided to separate the tobacco usable for cigarette making from tobacco dust. The apparatus may include a cutter (23, 24) for receiving and cutting the larger fraction of the sieved crushed winnowings. The three operations of crushing, sieving and cutting are all advantageously performed on the tobacco at cigarette maker moisture. It is also performed at ambient pressure and temperature, thereby greatly reducing capital costs over processes requiring heating, cooling, pressuring or moisture variation.
摘要:
This invention relates to a method and apparatus for compensating the output signal of a reflection type eddy current probe so as to minimize the change in the phase shift of the probe output signal that otherwise would occur as a result of a change in the spacing of the probe from the surface of the metal sample being inspected or investigated.
摘要:
An apparatus is provided for slicing and feeding tobacco comprising a horizontal trolley track (33), a trolley (31) movable along the trolley track, a slicing device including horizontally movable slicing blades (20), said slicing device being suspended from said trolley (31), a vertically movable tobacco platform (17) below the slicing blades to carry a block of tobacco leaves (10), and a horizontal conveyor belt (42) adapted to convey tobacco slices away from the slicing region. The slicing device is adapted to cut successive slices of tobacco from said block and convey them to a position over the conveyor belt and to release them on to the conveyor belt. By these means the tobacco can be sliced without the necessity of tilting and a continuous flow of tobacco slices is provided.