The present study attempts to improve heat transfer efficiency of a domestic gas burner by enhancing heat transfer from flue gases. Heat transfer can be augmented using the obstacles that are inserted into the flow field near the heated wall of the domestic gas burner. First, to achive the maximum efficiency, the insert geometry is optimized by the multi-objective genetic algorithm so that heat...

OBJECTIVE Aseptic loosening of artificial knee joints induced by wear particles from a tibial polyethylene (PE) insert is a serious problem limiting their longevity. This study investigated the effects of grafting with our original biocompatible phospholipid polymer 2-methacryloyloxyethyl phosphorylcholine (MPC) on the insert surface. METHODS The hydrophilicity of the PE surface was determine...

RATIONALE Overexpression of the (+)insert smooth muscle myosin heavy chain (SMMHC) isoform could contribute to airway bronchospasm by increasing the velocity of contraction. Whether the (+)insert isoform is present in the small airways and its expression is reversible in asthma are unknown. OBJECTIVES To determine the anatomical location and the expression kinetics of the (+)insert SMMHC isof...

Resistance to antiretroviral drugs is generally conferred by specific amino acid substitutions, rather than insertions or deletions, in reverse transcriptase (RT) of human immunodeficiency virus type 1 (HIV-1). The exception to these findings is the amino acid insertions found in the beta3-beta4 loop of the RT enzyme in response to treatment with nucleoside reverse transcriptase inhibitors. Thi...

Positron emission tomography (PET) is widely used in clinical diagnosis as it provides metabolic and functional information about an organ of interest or the whole body. We are developing novel insert devices for existing PET scanners to achieve higher resolution in selected regions of interest such as the head, neck, breast, or abdomen. In this work, the insert is a ring of high-resolution det...

Cloning of DNA fragments in phage M13 is a routine procedure in DNA sequence determination. A simple procedure for the determination of DNA fragment orientation has been described earlier (1). Here we introduce a modification of this procedure which allows the simultaneous determination of DNA fragment orientation and size. Procedure: Single-stranded M13 DNAs (1, about lpg) were mixed in 5ul of...

Discrete burnable poisons like the Wet Annular Burnable Absorber and Pyrex have been used in PWR core to improve power distribution provide more negative moderator temperature coefficient. The absorber poison rods burns fast is completely gone after one cycle exposure core. Traditionally, are designed be part of fuel assembly. They burned together with first loading discharged cycle. In recent ...

Prime stimuli formed by inserting unrelated letters in a given target word (called "superset" primes) provide a means to modify the relative positions of the letters shared by prime and target. Here we examined the time-course of superset priming effects in an ERP study using the sandwich-priming paradigm. We compared the effects of superset primes formed by the insertion of unrelated letters (...