摘要:
An edge emitting semiconductor laser chip includes at least one contact strip, wherein the contact strip has a width B, an active zone, in which electromagnetic radiation is generated during the operation of the semiconductor laser chip, and at least two current barriers, arranged on different sides of the contact strip and extending along the contact strip, wherein the largest distance V between at least one of the current barriers and the contact strip is chosen in such a way that the ratio of the largest distance V to the width B is V/B>1.
摘要:
In a radiation-emitting semiconductor component with a layer structure comprising an n-doped confinement layer, a p-doped confinement layer, and an active, photon-emitting layer disposed between the n-doped confinement layer and the p-doped confinement layer, it is provided according to the invention that the n-doped confinement layer is doped with a first n-dopant (or two mutually different n-dopants) for producing high active doping and a sharp doping profile, and the active layer is doped with only one second n-dopant, different from the first dopant, for improving the layer quality of the active layer.
摘要:
In at least one embodiment, the optoelectronic semiconductor component includes an optically active area that is formed with a crystalline semiconductor material that contains at least one of the substances gallium or aluminum. Furthermore, the semiconductor component contains at least one facet on the optically active area. Furthermore, the semiconductor component contains at least one boundary layer, containing sulfur or selenium, with a thickness of up to five monolayers, wherein the boundary layer is located on the facet. Such a semiconductor component has a high destruction threshold relative to the optical powers that occur during operation of the semiconductor component.
摘要:
The microwave switch includes a housing (1) and a rotor (2) having a rotor axis (A). The rotor (2) includes respective plate-shaped parts (10,20) having corresponding ring-shaped outer surfaces (OS, OS′) and walls (15 to 18) extending between the plate-shaped parts. The rotor (2) is provided with through-going passages (7,8,9) extending transversely to the rotor axis (A) between the plate-shaped parts (10,20) and the walls (15 to 18). Grooves (6) for improving isolation of the passages (7,8,9) are provided only in the ring-shaped outer surfaces (OS, OS′) and extend longitudinally substantially parallel to the rotor axis (A). The grooves (6) open into the passages and the passages are bounded by the plate-shaped parts (10,20) in both directions of the rotor axis.
摘要:
A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of manganese ions and 50 to 300 g/l of phosphate ions. The solution has a pH value of 1 to 3.6, a free acid content of 0 to 100 points, a total acid content of 40 to 400 points and a ratio of free acid to total acid of 1:4 to 1:20.
摘要:
The present invention relates to a mixer system for the production of water-thinnable coating compositions having a precisely defined color shade, from various base colors, which mixer system is characterized in that it comprises A) various base colors A which contain less than 5% by weight of water, at least one color and/or effect pigment, organic solvent, at least one water-dilutable or water-dispersible acrylic polyurethane resin (A1) and/or polyacrylate resin (A2) and optionally auxiliaries and additives, and B) at least one pigment-free component B which contains water. The present invention also relates to a process for the production of coating compositions using this mixer system and to the use of the mixer system for the production of aqueous basecoats for the coating of automobile bodies and/or plastic parts, in particular for automotive refinishing.
摘要:
The present invention relates to the method of determining the risk of acute kidney injury comprising determining the amount of one or more marker(s) selected from REN, SLC38A4, IL17RB, TMEM149, FLRT3, and CATSPERG or any combination thereof in a sample.
摘要:
In a method for measuring the transmit time of light, in particular for cameras, a first light signal which is clocked by a first clock controller (16) is input into a light system (14) by a light transmitter (12) and is reflected back to a receiver photodiode (13) by means of a reflective objective (O). The photodiode (13) determines a reception signal as a result of the first light signal. By virtue of the fact that a further light signal which is clocked by a further clock controller (17) is input into the photodiode (13) at an angle with respect to the first light signal and is mixed at the photodiode (13) with the first light signal to form a common reception signal (S13), that the common reception signal (S13) is filtered with a filter (25) whose frequency response corresponds to the frequency of the clock difference in order to form a filter signal, in that the clock signal of the first clock controller (16) and of the further clock controller (17) are also mixed in a mixer (30) in order to form a mixed signal and in that the phase shift between the mixed signal of the clock controllers (16, 17) and the filter signal is used to determine the transit time of light, a method for measuring the transit time of light is provided which can operate in particular with cameras even with relatively inexpensive components and relatively low-frequency amplifiers.
摘要:
The present invention relates to the method of determining the risk of acute kidney injury comprising determining the amount of a marker selected from VCAN, NRP1, CCL2, CCL19, COL3A1, GZMM or any combination thereof in a sample.
摘要:
A coating composition consisting of at least three components, comprising a component (I) comprising at least one hydroxyl-containing oligomeric or polymeric resin dispersed or dissolved in one or more organic, optionally water dilutable solvents, as binder (A), a component (II) comprising at least one polyisocyanate dispersed or dissolved in one or more organic, optionally water dilutable solvents, as crosslinking agent (F), and a component (III) which comprises water, wherein component (I) comprises at least one hydroxyl-containing polyacrylate resin (A) containing polyether sidegroups and/or endgroups of the general formula I Y—(—O—R—)n— (I) in which the index and variables have the following meanings: n=3 to 100; R=C2 to C6 alkanediyl and C3 to C8 cycloalkanediyl; Y=hydrogen atom or C1 to C4 alkyl; as binder (A).
摘要翻译:由至少三种组分组成的涂料组合物,其包含分散或溶解在一种或多种有机,任选的水可稀释溶剂中的至少一种含羟基的低聚物或聚合物树脂作为粘合剂(A),组分( II)包含分散或溶解在一种或多种有机,任选水可稀释溶剂中的至少一种多异氰酸酯作为交联剂(F)和包含水的组分(III),其中组分(I)包含至少一个含羟基的 含有聚醚侧基和/或通式Iin的端基的聚丙烯酸酯树脂(A),其指数和变量具有以下含义:n = 3〜100; R = C2〜C6烷二基和C3〜C8环烷二基; Y =氢原子或 C1〜C4烷基;作为粘合剂(A)。