摘要:
A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要:
A perpendicular magnetic recording medium including improvements to the recording layer (RL), exchange break layer (EBL), soft underlayer (SUL), overcoat (OC), adhesion layer (AL) and the combination of the layers. Advances in the RL include a cap layer. Improvements in the EBL include a multiple layer EBL.
摘要:
A perpendicular magnetic recording medium has an “exchange-spring” type magnetic recording layer (RL) formed of two ferromagnetic layers with substantially similar anisotropy fields that are ferromagnetically exchange-coupled by a nonmagnetic or weakly ferromagnetic coupling layer. Because the write head produces a larger magnetic field and larger field gradient at the upper portion of the RL, while the field strength decreases further inside the RL, the upper ferromagnetic layer can have a high anisotropy field. The high field and field gradient near the top of the RL, where the upper ferromagnetic layer is located, reverses the magnetization of the upper ferromagnetic layer, which then assists in the magnetization reversal of the lower ferromagnetic layer. Because both ferromagnetic layers in this exchange-spring type RL have a high anisotropy field, the thermal stability of the medium is not compromised. The medium shows improved writability, i.e., a low switching field, as well as lower intrinsic media noise, over a medium with a conventional single-layer RL.
摘要:
A perpendicular magnetic recording medium, such as a perpendicular magnetic recording disk, has a magnetic “torque” layer (MTL) that exerts a magnetic torque onto the perpendicular magnetic recording layer (RL) in the presence of the applied perpendicular write field. The MTL thus acts as a write assist layer in reversing the magnetization of the RL. A coupling layer (CL) is located between the MTL and the RL and provides the appropriate ferromagnetic coupling strength between the MTL and the RL.
摘要:
Provided are embodiments of a mobile communication terminal with a data generation unit arranged for generating a data stream, a data serialization unit arranged for segmenting the data stream into at least two distinct data packets, and a channel broker unit. The channel broker unit is connected to the serialization unit to receive the at least two data packets and to select for each of the data packets a bearer channel out of at least two different bearer channels.
摘要:
Flow measuring device for ascertaining flow of a measured medium flowing through a measuring tube, which flow measuring device has a first housing for protruding into the measured medium, wherein the first housing has a first surface intended to face the measured medium, wherein the flow measuring device includes a second surface for bounding the measured medium, and wherein each separation between the first surface for bounding the first housing from measured medium, the second surface for bounding the measured medium and the first surface of the first housing amounts to at least 1 mm.
摘要:
A coupling element of a sensor of an ultrasonic, flow measuring device, which includes at least three rods having, in each case, a first rod end and a second rod end. The rods, in each case, have, on their respective first ends, first end faces, which, in each case, can be acoustically coupled with the sound-emitting and/or sound-receiving area of an ultrasonic transducer element. The respective first end faces of the rods together form a first coupling surface of the coupling element, and the rods, in each case, have, on their respective second ends, second end faces, which form a second coupling surface of the coupling element, wherein the rods, in each case, have a first rod cross section, which is different in shape and/or size from a respective second rod cross section.
摘要:
The present invention relates to an improved process for the production of prostaglandins and prostaglandin analogs. In particular, this invention relates to the production of prostaglandins of the PGF2α-series, including latanoprost, travoprost, and bimatoprost, which are active pharmaceutical ingredients used for the reduction of elevated intra-ocular pressure in patients with glaucoma and ocular hypertension.
摘要:
A coupling element of a sensor of an ultrasonic, flow measuring device, which includes at least three rods having, in each case, a first rod end and a second rod end. The rods, in each case, have, on their respective first ends, first end faces, which, in each case, can be acoustically coupled with the sound-emitting and/or sound-receiving area of an ultrasonic transducer element. The respective first end faces of the rods together form a first coupling surface of the coupling element, and the rods, in each case, have, on their respective second ends, second end faces, which form a second coupling surface of the coupling element, wherein the rods, in each case, have a first rod cross section, which is different in shape and/or size from a respective second rod cross section.
摘要:
An apparatus for ascertaining and/or monitoring volume- and/or mass-flow of a measured medium flowing in a flow direction through a measuring tube of predetermined inner diameter. The apparatus includes a plurality of ultrasonic sensors, which transmit and/or receive ultrasonic measuring signals along different, defined measuring paths, and a control/evaluation unit, which ascertains volume- and/or mass-flow of the measured medium in a pipeline/in the measuring tube on the basis of the ultrasonic measuring signals according to a sound entrainment method or the echo principle. At least two ultrasonic sensors, which transmit and/or receive the ultrasonic measuring signals on different measuring paths, are positioned in an opening located in the wall of the measuring tube.