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Summary: To enhance the cycling ability and rate property of carbon anode material for sodium ion battery, an easy, green, and scalable thermal pyrolysis method had been exploited to synthesize the nitrogen, sulfur self‐doped porous carbon anode derived from the walnut shell. The microstructure and electrochemical properties of this synthesized porous carbon materials are investigated by tuning the thermal pyrolysis temperature. When it is at 1000 °C, the porous carbon material exhibits the largest average interlayer distance of about 0.408 nm (d002) and excellent electrochemical performance. The porous carbon electrode material carbonized at 1000°C for sodium ion battery manifests a high reversible specific capacity of about 305 mAh g−1 at a current density of 100 mA g−1 after 200 cycles, and as large as 182 mAh g−1 at 1 A g−1 after 1500 charge/discharge cycles. Nitrogen and sulfur doped biomass carbon anode material with an excellent storage capacity for sodium ion, makes it an appealing candidate as cheap and high‐performance anode materials for sodium ion batteries. [ABSTRACT FROM AUTHOR]

ABSTRACT Some amide derivatives are highly valuable products with antiproliferative and cytotoxic bioactivity. In this paper, 12 novel amide compounds were synthesized correspondingly by boc-protection glycine, deprotection, and condensation reactions. The antiproliferative and cytotoxic activity of these compounds was also evaluated by human cervical cancer (Hela) and hepatoma carcinoma (SK-Hep-1) cancer cell lines. The assay revealed that eight compounds ( 5a-d, 6a-d) exhibited activity against Hela cancer cells. Four of them ( 5a-d) also showed activity against SK-Hep-1 cancer cells. © 2012 Wiley Periodicals, Inc. Heteroatom Chem 24:9-17, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.21057 [ABSTRACT FROM AUTHOR]

A low-cost Ku-band array of microstrip antennas, which is fed by standard waveguide, is presented in this article. The 72 corner-fed square patches of the array are arranged in a 6-by-12 configuration. A novel waveguide-to-microstrip transition with power divider is employed as the fed for the array to reduce the loss of the microstrip feed line. The resonant frequency of the array is 12.5 GHz and the gain was measured to be 24.3 dBi. The measurement results show good agreements with full-wave simulation. This array of waveguide-fed microstrip antennas can be used in many modern communication systems, such as a mobile radar sensor, in which the transition can be fixed as a connection between the module with a front-end waveguide and the antennas. © 2010 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2011. [ABSTRACT FROM AUTHOR]