Abstract: A high performance louvered fin for a heat exchanger is disclosed, wherein adjacent entrance louvers have increased widths and adjacent exit louvers have decreased widths in order to optimize thermal efficiency.

Abstract: The present invention relates to a process for preparing a stable suspension of carbon nanoparticles in a hydrophilic thermal transfer fluid to enhance thermal conductive properties and other characteristics such as freezing point of an antifreeze coolant. The process involves the step of dispersing carbon nanoparticles directly into a mixture of a thermal transfer fluid and other additives in the present of surfactants with intermittent ultrasonication. The present invention also relates to the composition of a hydrophilic nanofluid, which comprises carbon nanoparticles, particularly carbon nanotubes, a hydrophilic thermal transfer fluid, and at least one surfactant. Addition of surfactants significantly increases the stability of nanoparticle dispersion.

Abstract: The present invention relates to processes for preparing a stable suspension of carbon nanoparticles in a thermal transfer fluid to enhance thermal conductive properties, viscosity, and lubricity. One process is to disperse carbon nanoparticles directly into a thermal transfer fluid and other additives in the present of surfactants with intermittent ultrasonication. The second process is carried out in three stages. First, carbon nanoparticles are dispersed into a volatile solvent. Then, a thermal transfer fluid, surfactants, and other additives are added into this intermediate dispersion and mixed thoroughly. At last, the volatile solvent is removed to produce a uniformly dispersed nanofluid. The third process is to disperse carbon nanoparticles at an elevated temperature into a homogeneous mixture of surfactants and other additives in a thermal transfer fluid with help of a physical agitation.

Abstract: Light emitting devices having charge transporting layers comprising one or more metal complexes are provided. More particularly, devices include hole transporting layers comprising at least one organometallic complex are disclosed. The present devices can further comprise an electron blocking layer for improved efficiency.

Abstract: The invention provides isolated nucleic acid molecules which encode novel fatty acid desaturase family members. The invention also provides recombinant expression vectors containing desaturase nucleic acid molecules, host cells into which the expression vectors have been introduced, and methods for large-scale production of long chain polyunsaturated fatty acids (LCPUFAs), e.g., DHA.

Abstract: Light emitting devices having charge transporting layers comprising one or more metal complexes are provided. More particularly, devices include hole transporting layers comprising at least one metal complex are disclosed. The present devices can further comprise an electron blocking layer for improved efficiency.

Abstract: The invention provides isolated nucleic acid molecules which encode novel fatty acid desaturase family members. The invention also provides recombinant expression vectors containing desaturase nucleic acid molecules, host cells into which the expression vectors have been introduced, and methods for large-scale production of long chain polyunsaturated fatty acids (LCPUFAs), e.g., DHA.

Abstract: A method of exchanging heat that includes flowing a high pressure, high temperature fluid within a tubing generally along a first direction and flowing a low pressure, low temperature fluid within a first gap formed between a first wall and a first portion of the tubing positioned nearest the first wall and a second gap formed between a second wall and a second portion of the tubing that is positioned nearest the second wall.

Abstract: Light emitting devices having charge transporting layers comprising one or more metal complexes are provided. More particularly, devices include hole transporting layers comprising at least one metal complex are disclosed. The present devices can further comprise an electron blocking layer for improved efficiency.

Abstract: Organic light emitting devices the emissive layer comprises a host material containing a fluorescent or phosphorescent emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, wherein the device comprises an electron transporting layer comprising a derivative of cyclooctatetraene.

Abstract: The invention provides isolated nucleic acid molecules which encode novel fatty acid desaturase family members. The invention also provides recombinant expression vectors containing desaturase nucleic acid molecules, host cells into which the expression vectors have been introduced, and methods for large-scale production of long chain polyunsaturated fatty acids (LCPUFAs), e.g., DHA.

Abstract: The synthesis of asymmetric tetrasubstituted cyclooctatetraenes (“COTs”) and the use of said compounds in organic light emitting diodes is reported, wherein said COTs represent a class of wide gap electron transporters that are readily deposited in vacuum.

Abstract: The synthesis of asymmetric tetrasubstituted cyclooctatetraenes (“COTs”) and the use of said compounds in organic light emitting diodes is reported, wherein said COTs represent a class of wide gap electron transporters that are readily deposited in vacuum.