Metallic tubes, under axial loading, are frequently preferred in many different industries due to their high energy absorption efficiency. The studies increase the capacity (EAC) of these structures still up date. In this study, deformation behavior and EAC regionally pre-deformed identical aluminum steel tubes loading were investigated experimentally. Regional strength was obtained by radial w...

BACKGROUND Chronic ethanol administration to rodents requires specially designed equipment and is labor intensive. Here we report a new procedure. METHOD A commercial liquid diet preparation was made into a gel by addition of 0.5% agar. The gel, containing 5.3% ethanol, was offered in Falcon tubes equipped with a feeding opening. RESULTS The gel consumption by C57/Bl mice resulted in high b...

LABORATORY MICROCOSMS WERE USED TO: i) measure the effects of soil moisture on survival of Steinernema riobravis and ii) investigate the suitability of using microcosms to study motility and survival of these nematodes. Nematodes recovered from soil contained in petri dishes declined by more than 95% during 7 days, whereas nematodes recovered from the inner surfaces of dishes increased 35-fold....

A disk-type input coupler for the Pohang Light Source (PLS) storage ring cavity was fabricated and tested up to 60 kW. A coaxial adapter is required for this system which should have an exit for the loop coupling tubes. Since this input coupler can extract HOMs better than the cylinder-type one out of the cavity, a specially designed HOM absorber was implemented in the design of the adapter. A ...

PROBLEM STATEMENT: Petroleum hydrocarbons, and other volatile organic compounds (VOCs), which are found to contaminate groundwater and soils, are usually treated by pump-and-treat methods, which are very time-consuming, expensive, and not very effective. We are proposing the use of pervaporation for effectively removing these hydrocarbons and VOCs from contaminated soil and groundwater (with or...

Required refrigerant charge in heat pump systems with propane is analyzed. Two are compared: the first a direct pump, fin-and-tube exchangers, and second an indirect system, plate exchangers additional brine-to-air exchanger. Each system was considered to be able work reversibly, 5 kW design cooling capacity summer 8 heating winter. separately developed simulation codes were used calculate requ...