摘要:
Herbicidal compositions comprising a substituted thiolcarbamate derivative corresponding to the formula (I) wherein R.sub.1, R.sub.2 and R.sub.3 are selected independently from alkyl groups having 1 to 4 carbon atoms and/or a chloroacetanilide derivative corresponding to the formula (II) wherein R.sub.4 and R.sub.5 are hydrogen or alkyl group having 1 to 4 carbon atoms, identical or different, R.sub.6 is an alkoxyalkyl group corresponding to the formula --R.sub.7 --O--R.sub.8 in which R.sub.7 and R.sub.8 are selected from alkyl groups having 1 to 4 carbon atoms and, as an antidote, a thiocarbamic acid derivative corresponding to the formula (III) wherein R.sub.9 and R.sub.10 independently from each other are alkyl or alkenyl group having 1 to 4 carbon atoms, or R.sub.9 and R.sub.10 taken together with one or two nitrogen atoms form a heterocyclic group, which may contain one oxygen atom or they form a soiro-heterocyclic or condensated ring, which can be substituted with alkyl groups having 1 to 4 carbon atoms or an aryl group, R.sub.11 is an alkyl or alkenyl group having 1 to 3 carbon atoms or a benzyl group containing one or 2 substituents, carboxy methylene, 1-methylene naphtyl, acetophenon-(2)-yl-, carb-(.alpha.)naphthoxy-methylene, N-methylene o-benzoic acid sulphimide, N-isopropyl-N-phenylacetamidyl, N,N-disubstituted-2-acetamidyl group containing alkyl, alkylene groups having 1 to 3 carbon atoms, alkoxyalkyl, phenyl or dialkyl phenyl group.
摘要:
The invention relates to a composition for the extension and increase of the activity of herbicidal compositions containing as herbicidally active ingredient at least one carbamate and/or thiolcarbamate and/or chloroacetanilide and/or dichloroacetanilide derivative and optionally antidotes therefore, which comprises at least one thio- or dithiophosphoric acid ester of the formula (I) ##STR1## wherein R stands for identical or different alkyl, alkenyl, isoalkyl, isoalkenyl, haloalkyl, haloalkenyl, isohaloalkyl or isohaloalkenyl groups, each containing up to 4 carbon atoms;R' represents identical or different alkyl, alkenyl, isoalkyl, isoalkenyl, haloalkyl, haloalkenyl, isohaloalkyl, isohaloalkenyl groups, each containing up to 4 carbon atoms;X is oxygen or sulfur,X.sub.1 is oxygen or sulfur, with the proviso that at least one of the X.sub.1 groups is other than oxygen.
摘要:
Clicks in voice and music signals are removed by detecting and interpolating the click. The use of a permanently set threshold value above the peak value of the audio signal is known for detecting the clicks, and interpolation carried out on the basis of the sample values before and after a click is known for filling them in. Disadvantages of these methods are, on the one hand, that many clicks do not have a larger amplitude than the peak signal and therefore remain undetected, and, on the other hand, interpolation is a highly complex procedure and is limited to a maximum click density. The invention provides for an error signal (en) to be determined by adaptive filtering (AF). A sample value is designated as distorted in the input signal (xn) if the absolute instantaneous value in the error signal (en) exceeds a dynamically adapted threshold value. The output signal of the adaptive filtering (yn) is used as a substitute value for the sample value designated as distorted, specifically both in the case of the signal which is output and in the input values of the adaptive filtering.
摘要:
The reproduction of mono audio signals leads to an unpleasant sound impression because of the lack of any spatial character. It is therefore desirable to produce a two-channel signal electrically from the single-channel input signal. Some of the known single-band methods are very costly and provide only an inadequate impression of a spatial character. In the case of the invention, a plurality of signals of different types are first of all formed from the mono input signal by filtering, and virtual single-band stereo signals are then generated separately for each of these signals of different types. These stereo signals are subsequently combined to form two output signals.
摘要:
The invention relates to a method of and an apparatus for measuring surface temperature of especially moving objects, advantageously measuring the temperature of fibrous products, and particularly of wires during production. The essence of the method lies in that two concentric shells not being contiguous with either the object to be measured or with one another are fitted to the object to be measured, temperature is sensed in the two end locations and in the central region of the inner shell, and in the central region of the outer shell, these values are brought to be equal to the value measured in the central region of the inner shell by dissipation or by heat transfer (heating), then temperature is measured in the central region of the inner shell. The essence of the apparatus lies in that it comprises two concentric shells separated from one another, an inner sensing and an outer compensating shell, being provided with heated surfaces, and dissipating elements, respectively. The method and the apparatus according to the invention are suitable for measuring surface temperature of moving elements, particularly of wires, fibres, strips moving at a speed of 0 to 65 m/s, irrespective of surface quality, material, or relatively low temperature ranges, where temperature radiation is hard to measure.