Abstract: An efficient combined advanced treatment method of electroplating wastewater is disclosed, which belongs to the technical field of electroplating wastewater treatment. The method includes: after pretreatments including cyanide breaking, dechromisation and coagulating sedimentation, introducing the electroplating wastewater to a contact oxidation tank for biochemical treatment, and settling the effluent from the contact oxidation tank down in an inclined pipe of a secondary sedimentation tank to realize the separation of the sludge from water; charging the effluent to a coagulating sedimentation tank, and undergoing coagulating sedimentation with the aid of a flocculant and a coagulant aid added; feeding the effluent, as an influent, to a resin adsorption tank for adsorption with a magnetic resin; and after passing through a filter, flowing the effluent after adsorption to a fixed bed resin adsorption unit, so as to realize the discharge up to standard and recycle of the effluent.

Abstract: Systems and methods for monitoring and improving software development quality are described herein. In accordance with one aspect of the present disclosure, an occurrence of a monitoring task related to source code is monitored. The source code is compiled and tested to produce a test result. The test result is analyzed. The test result analysis includes quality analysis to assess the quality of the source code.

Abstract: A method of ultrasonic brazing metal matrix composite, which forms a reinforced composite bond without filling welding wire with reinforcement or adding alloy element to generate ceramic phase, includes the steps of setting a filler metal; introducing ultrasonic vibration to braze in air; dissolving the base materials, and introducing ultrasonic wave again. The method performs the aluminum brazing at low temperature. The periodic time of brazing is shorter and the cost is lower than the conventional brazing methods. The strength, service temperature and dimensional stability of the joint are close to the base article.

Abstract: A method of ultrasonic brazing metal matrix composite, which forms a reinforced composite bond without filling welding wire with reinforcement or adding alloy element to generate ceramic phase, includes the steps of setting a filler metal; introducing ultrasonic vibration to braze in air; dissolving the base materials, and introducing ultrasonic wave again. The method performs the aluminum brazing at low temperature. The periodic time of brazing is shorter and the cost is lower than the conventional brazing methods. The strength, service temperature and dimensional stability of the joint are close to the base article.

Abstract: The present invention comprises an apparatus and a method for measuring the first arrival time of seismic waves from detonation in seismic explorations, comprising a or several detectors for measuring seismic waves and converting them into electrical signals and a signal processing means for calculating an average energy of the electrical signals to determine the first arrival time of seismic waves and using a smooth filtering method to compute accurately the first arrival time backwards from the first maximum valve in the average energy curve.

Abstract: The present invention provides a apparatus and a method used for measuring the detonation time and the first arrival time of seismic waved caused in the seismic exploration field, wherein said apparatus includes a signal measuring means used for measuring current and voltage of the detonation circuit, a test signal generating means used for adding to the detonation circuit a &ohgr;-frequency sine wave test signal in order to smooth filter out noise and interference to enhance accuracy of measurement and a signal-processing means used for detecting and measuring current and voltage with same frequency as the &ohgr;-frequency test signal from current and voltage measured by the signal measuring means, and thus computing the curve of impedance changes and, in some extent to eliminate noise and interference and to determine accurately the detonation time TB.