Hollow fiber plasmapheresis module and process, said module comprising hollow fibers having cell-retaining pores and an effective length (L) to lumen diameter (D) ratio L/D not greater than 16,400 cm-1 D (L and D being in centimeters) within a housing having a blood inlet for conducting blood to the fibers, an outlet for conducting exit (plasma-depleted) blood from the fibers, and a plasma outlet ...

A conference system is disclosed which is capable of freely setting the sound volume level by making the sound volume levels of the input and output of the conference circuit variable for each participant, by pluralities of input and output ROM converters so that the levels of voices of participants of large and small line losses are made as close to each other as possible and that the participant...

PURPOSE:To reduce the size of ink droplets jetted and enable clear recording in a high density, by applying a driving waveform with a period of an integer times a period 1/(2fR2), wherein fR2 is the frequency of vibration of the normal mode of an ink jet head, to a piezoelectric element of the ink jet head. CONSTITUTION:When an ink jet head is loaded with an ink and the frequency of a sinusoidal d...

FRICTION PAD AND SUPPORT FOR A DISC BRAKE The invention relates to a friction pad for a disc brake and a disc brake assembly in which the friction pads are slidably supported by tabs extending radially outward of the friction pad backing plates on spaced axially extending, stepped edges of an aperture provided to the disc brake caliper. The friction pad tabs include support surfaces or shoulders w...

Hydrodynamic pumping of the fluidized calcining mass in a kettle is set up by the continuous flow of the mass to and from heating rods immersed therein which are constantly emitting at least about 1 British Thermal Unit of heat per minute per square inch of the surface of the rods. The transfer of heat from the walls and bottom of the kettle is enhanced so that more of the available heat is actual...

PCT No. PCT/FR87/00308 Sec. 371 Date Feb. 10, 1989 Sec. 102(e) Date Feb. 10, 1989 PCT Filed Aug. 6, 1987 PCT Pub. No. WO88/01129 PCT Pub. Date Feb. 25, 1988.A plow having symmetrical mold-boards and bodies, the plow comprising a hitch 1 connected in particular by means of a pivot 3 and to a main frame 4 which is provided with a pivot 18 receiving a hydraulic actuator 17 whose action causes a beam ...

14,17 beta -ethano-14 beta -estratriene and estratetraene of Formula I (I) wherein R1 is a hydrogen atom, a methyl or an acyl group of a monocarboxyclic acid of 1-12 carbon atoms, R2 is a hydrogen atom or an acyl group of a monocarboxylic acid of 1-12 carbon atoms, R3 is a hydrogen atom or a methyl group, and is a single or double C-C-bond show strong estrogenic activity.

An artistic technical knife which has a double-edged blade having a sharpened point at its terminus and a number of frangible recesses extending at oblique angles from one edge of the blade to the opposite side of the blade to divide the blade into a number of triangles; a blade holder; and a push knob for extending and retracting the blade from the blade holder; wherein the outermost triangle on ...

An hybrid array correlator is configured of a cascaded array of individually identical correlator cells, through which a preselectable reference symbol sequence, identifiable with a symbol to be acquired, is successively clocked, from cell to cell and then recirculated back to the beginning or first cell of the array. The physical span of the correlator covers one complete symbol time, with each c...

In the production of a graphite intercalation compound in which the intercalant is a metal chloride, the reaction is carried out in the presence of a second metal chloride of a relatively low boiling point to effect a notable reduction in the reaction time. In the production of a metal chloride intercalation compound which normally requires an atmosphere of chlorine, the addition of the second met...

A box type container used in a press for compacting materials is supported by a floating clamp arrangement that protects the container during compaction and allows significantly higher compaction pressures to be used. The clamps are supported with spherical connections and are pressed to the container with hydraulic cylinders. A container that is fabricated out of square with generous dimensional ...