摘要:
A measuring system for determination of at least one chemical property in an oil under transportation from a first container to a second container, where a pipe inlet is arranged to withdraw a sample part from the oil in flow and a sample handling arrangement is arranged for guiding a sample from the sample part into and out of at least one chemical property measuring instrument. The measuring system further includes a control computer unit connected to the sample handling arrangement and being programmed to performing a plurality of consecutive measuring cycles, each including i) guiding a sample from the sample part into the at least one chemical property measuring instrument, ii) performing a measurement of the at least one chemical property in the sample, and iii) withdrawing the sample from the at least one chemical property measuring instrument.
摘要:
The present application relates to a hearing aid, especially a hearing aid with multiple modes of operation and efficient switching between these modes of operation. The hearing aid comprises means for performing a first mode of operation, means for performing a second mode of operation, first and second quality measuring means for providing first and second quality measures corresponding to the first and second modes of operation, respectively, and selecting means for automatically selecting one of said first and second modes of operation by applying a predetermined selection criterion to the first and second quality measures, and wherein the selecting means is programmed to select the mode of operation for which the estimated quality measure is largest when the difference between the first and second quality measures exceeds a predetermined threshold value.
摘要:
The present invention concerns a method for in situ measuring of evaporation from a surface and an apparatus for measuring the evaporation from a surface. The apparatus comprises an evaporation surface made of a porous, hydrophilic material, which surface is connected to a reservoir. The method describes how to use the apparatus according to the invention.
摘要:
A method of controlling beam quality and stability of a laser apparatus, the laser apparatus comprising, a diode laser (10) providing first radiation of at least a first wavelength, and a frequency conversion unit (12) configured to frequency-convert the first radiation from the diode laser and to output the frequency-converted radiation (213), the frequency-converted radiation having at least a second wavelength different from the first wavelength, the diode laser (10) comprising at least a first and a second section (222,223), a first contact (220) for injecting a first current (I1) into the first section (222), a second contact (221) for injecting a second current (I2) into the second section (223), and means for controlling a temperature of the diode laser; wherein the method comprises monitoring a first parameter indicative of the power content of a dominant lobe of the first radiation; iteratively determining a combination of respective values of the first current, the second current and the temperature at which combination of respective values the monitored first parameter and a stability parameter indicative of a fluctuation over time of the monitored first parameter each fulfills a respective predetermined optimization criterion; and setting the first current, the second current, and the temperature to the determined combination of respective values.
摘要:
The invention relates to a method and a system for optimizing the performance of a loudspeaker system as perceived by user.The physical part of the speaker system is adjustable which enables the speaker units to be placed in positions that imply maximal acoustical performance. This is obtained by combined means to: 1) bring the speaker in a specified position and 2) apply accordingly position dependant individual acoustical filters inserted in the signal path to each individual speaker.
摘要:
The invention relates to a measuring system for determination of at least one chemical property and optionally one or more physically properties in an oil e.g. a bunker fuel or a lubricant under transportation from a first container e.g. a fuel supply tank to a second container e.g. a tank og a ship. The system comprises a pipe inlet arranged to continuously or stepwise withdraw a sample part from the oil in flow under transportation from said first container to said second container, a pipe outlet for discharging at least some of the sample part, at least one chemical property measuring instrument for measuring a chemical property in a sample of said sample part, a sample handling arrangement for guiding a sample from said sample part into and out of said at least one chemical property measuring instrument. The measuring system further comprises a control computer unit connected to said a sample handling arrangement and being programmed to performing a plurality of consecutive measuring cycles, each comprising i. guiding a sample from said sample part into said at least one chemical property measuring instrument, ii. performing a measurement of said at least one chemical property in said sample, and iii. withdrawing said sample from said at least one chemical property measuring instrument.
摘要:
Herbicidally active substituted phenyl carbamates I ##STR1## in which R.sup.1 represents a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or an aryl group, which aryl group may be substituted by a halogen atom and/or a C.sub.1 -C.sub.6 alkyl group and/or a trifluoromethyl group, and R.sup.2 represents a C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.2 -C.sub.6 alkynyl group that may be substituted by a terminal halogen atom, are prepared by reacting N-hydroxyphenyl carbamates II ##STR2## with either isocyanates R.sup.1 --N.dbd.C.dbd.O or amino chlorides R.sup.1 --NH--COCl in an aqueous medium thus avoiding the use of organic solvents. The end product I may be extracted from the aqueous slurry into a water-immiscible solvent.The N-hydroxyphenyl carbamates II can be prepared by reacting 3-aminophenol with chloroformates in an aqueous medium, and the resulting product may be reacted in situ, without isolation, with isocyanates, in the same reaction vessel. Stabilized herbicidal compositions containing compounds I may be prepared by suspending the compounds I in a liquid phase comprising one or more oily components and one or more surfactants.