Based on the fundamental principle of sound intensity measuring,the noise sources from surface radiating of 4190 diesel engine are distinguished by utilizing the sound intensity module of B&K 3560C portable type system of vibration and noise.
In order to assure measurement accuracy of portable type ultrasonic flowmeter, starting from measuring principles and methods, this paper introduces same factors of influence measurement such as parameters of pipeline fixing straight pipeline and so on, and puts forward setting methods.
Using the vibration and noise testing soft(B&K) of Danmark and portable type vibration and noise testing soft(HEAD-ArtemiS) of German to test the compressor. The compressor noise is main the exhaust noise by the method of sound pressure testing、spectrum analyzing、total value analyzing、array spectrum analyzing and near field testing.
Detection of coronary artery stenosis after successful percutaneous coronary intervention by dipyridamole stress portable type s
In our previous studies, using portable type signalaveraged electrocardiography (portable SAECG) with dipyridamole stress we reported that patients with coronary artery disease were identified at the bedside with high sensitivity and specificity.
But Java attempts to satisfy some rather contradictory goals, portable type-safe code and also reasonably fast execution.
For each evaporative cooler other than portable type $10.65 15.