JCA(Java Connector Architecture) is the important supplement to J2EE standard, and its primary aim is to realize the integration between different EIS and various application servers based on J2EE standard.
In order to meet the requirements of high-temperature (175～200℃) connectors, a high strength and electroconductive copper alloy (CE-4) containing<5% Ni and minor amounts of Al, Si, Cr, Mg and other elements is prepared.
This paper introduces present situation and trends in standardization of mechanical structures of electronic equipments, which include: dimensions of mechanical structures (IEC60297 series, IEC60917 series), outdoor enclosures (IEC61969 series), environmental testing (IEC61587 series), connectors (IEC60603, IEC61076-4 series), and foreign standards based on IEC60297 and IEC60917 etc;
A new series of p-benzoquinones, hydroquinones, and quinol dimethyl ethers substituted by a pyrazole ring either directly or after an oxoethyl linker was synthesized and screened for in vitro cytotoxic activity.
In the preparation of imprinted polymer, Cu2+ was used as the template, oleic acid as the functional monomer and divinylbenzene as the cross-linker.
The structures of catalytic and substrate binding domains, as well as linker sequences, are briefly considered.
The Goα was crosslinked by a cross-linker, N,N"-1,4-phenylenedimaleimide (p-PDM), yielding multiple crosslinked products.
It was found also that nucleosomes' positioning on the NPTII gene and their mutual disposition, namely the spacing between neighboring nucleosomes (linker length) are determined by the location of positioning signals only.