Column separation refers to the breaking of liquid columns in fully filled pipelines. This may occur in a water hammer event when the pressure drops to the vapor pressure at specific locations such as closed ends, high points or knees (changes in pipe slope). A vapor cavity, driven by the inertia of the parting liquid columns, will start to grow. The cavity acts as a vacuum, a low-pressure poin...

Water hammer wave is widely applied to test hydraulic components in various areas. A new high-pressure impulse generator presented this paper order provide the standard water for long-term usage. combination of a sleeve and rotary spool was used build generator, booster piston amplify output pressure. Mathematical models were established using commercial software, prototype rig built based on s...

Odontomutilla listopadovi sp. n. is described and illustrated from Myanmar (Mandalay Region). A female of new species (male unknown) strikingly differs congeners by having two golden spots located transversely in the basal half second metasomal tergum (lacking such or 1(3) other genus). The genus Ashmead, 1899 newly recorded Myanmar. Three wrongly me species: Krombei¬nidia margheritae (Hammer, ...

olive oil extraction methods and technology can affect the quality and quantity of the extracted oil. in this study, qualitative and quantitative parameters were investigated for oil extracted using a hammer crusher at 720 and 1450 rpm at 30°, 40°, 60° c mixing temperatures. the data were analyzed using a complete randomized block factorial design using spss software with three replications. th...

Achieving optimal program performance requires deep insight into the interaction between hardware and software. For software developers without an indepth background in computer architecture, understanding and fully utilizing modern architectures is close to impossible. Analytic loop performance modeling is a useful way to understand the relevant bottlenecks of code execution based on simple ma...