摘要:
Method for producing solar cells with a two-stage doping (9, 11) comprising the method steps of heavy doping (50) of at least a part of the solar cell substrate (1), of at least temporarily protecting doped areas (8), in which heavily doped areas (9) of the two-stage doping (9, 11) should be formed, from an etching medium and etching back (54; 62, 64; 72, 74) unprotected doped areas (17) of the solar cell substrate (1) by means of the etching medium, whereby, for the purpose of protecting the doped areas, sacrificial structures (7) are applied (52) on the areas (8) to be protected, which are at least partly etched (54; 62, 64; 72, 74) during etching back (54; 62, 64; 72, 74) of the unprotected doped areas.
摘要:
The invention relates to reactive ionic liquids containing organic cations with groups or substituents which are susceptible to electrochemical reduction and anions obtained from fluoroalkyl phosphates, fluoroalkyl phosphinates, fluoroalkyl phosphonates, acetates, triflates, imides, methides, borates, phosphates and/or aluminates, for use in electrochemical cells, such as lithium ion batteries and double-layer capacitors.
摘要:
A light wood-containing material having an average density in the range from 200 to 600 kg/m3, comprising, based in each case on the wood-containing material: A) from 30 to 95% by weight of wood particles; B) from 1 to 25% by weight of a filler having a bulk density in the range from 10 to 150 kg/m3, selected from the group consisting of foamable plastic particles and already foamed plastic particles; C) from 0.1 to 50% by weight of a binder and, if appropriate, D) additives, the following relationship being true for the d′ values according to Rosin-Rammler-Sperling-Bennet of the wood particles A) and of the particles of the filler B): d′ of the particles A)≦2.5×d′ of the particles B).
摘要翻译:平均密度为200至600kg / m 3的含轻木材的材料包括基于木材的材料:A)30至95重量%的木材颗粒; B)1至25重量%的堆积密度在10至150kg / m 3范围内的填料,其选自可发泡塑料颗粒和已发泡塑料颗粒; C)0.1至50重量%的粘合剂,并且如果合适,D)添加剂,根据木材颗粒A)和木颗粒A)的松香 - 拉姆勒 - 斯珀林 - 班奈特 的填料B):d'颗粒A)≦̸ 2.5×d'的颗粒B)。
摘要:
A method for a rate increase and a method for a rate reduction of a sampling input sequence into a sampling output sequence is provided. The sampling input sequence is subjected to signal processing. Signal processing maps a spreading with a first factor and an interpolation and a decimation with a second factor to generate the sampling output sequence with use of a counter. The counter and the signal processing are clocked with the higher rate, in each case, of the sampling input sequence or the sampling output sequence, respectively.
摘要:
The invention relates to a bar-type supporting structure for forming a frame, comprising a plurality of nodes and bars connecting the nodes, wherein each bar comprises at least one recess extending in the longitudinal direction of the bar, wherein the respective recess continues right into the node.
摘要:
An optical strain gage (1) for multi-axis strain measurement includes at least two linear light waveguide sections (2, 3, 4) with Bragg gratings (5). These are arranged next to one another in a prescribed angle (19) of 90° or 45° on a support layer (6) and are supplied with lightwaves by a common infeeding waveguide section (7). All of the light waveguide sections(2, 3, 4, 7) are provided preferably linearly on the support layer (6), and a beam dispersion element (8) is arranged between the infeeding waveguide section (7) and the measuring waveguide sections (2, 3, 4) containing the Bragg grating (5).
摘要:
A coaxial transmission, especially a hollow shaft transmission for industrial drive engineering, having a high power density. The transmission comprises an input element (7), an element (3) and an output element, a drive torque being multiplied and transmitted between the input element (7) and the output element via a plurality of radially mobile toothed sections (5). At least one toothed section (5) has a bearing element (11) which is enlarged in its effective zone with respect to an input element (7).
摘要:
The present invention relates to the use of wood-base materials for the production of furniture parts, wall claddings, insulation materials and the like for reducing the formaldehyde content in the ambient air, the wood-base materials (iii) comprising polyamine as a binder or (iv) comprising a binder differing from polyamine and additionally having polyamine in or on the outer layers of the wood-base material and the polyamine having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups.
摘要:
This invention discloses a system for determining whether a purported or alleged authorized user is in fact the authorized user, by comparing new data on a real-time basis against probability distribution representations including an authorized user probability distribution representation and a global or wide population probability distribution representation, to provide a probability as to whether the purported authorized user is the authorized user. This invention may utilize keyboard dynamics, data, X-Y device data, or other data from similar measurable characteristics, to determine the probability that the new data from the purported authorized user indicates or identifies that user as the authorized user.
摘要:
A WLAN (Wireless Local Area Network) receiver is provided that provides at least two acquisition units and at least two tracking units. The acquisition units perform a synchronization acquisition process, and the tracking units perform a synchronization tracking process. The acquisition units are arranged for being operated sequentially while the tracking units are arranged for being operated simultaneously. In an embodiment, frequency and phase error correction may be performed separately, and those units that operate at higher sampling rates may be located before lower-rate units. The synchronization process may include data-aided as well as non data-aided algorithms.