PING HAN∗,‡, RUI-XUE XU†,‡,§, PING CUI‡, YAN MO‡, GUOZHONG HE∗ and YIJING YAN∗,†,‡,¶ ∗State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences, Dalian 116023, China †Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026, China ‡Department of Chemistry, Hong Kong Uni...

The lithium-air battery is one of the most promising technologies among various electrochemical energy storage systems. We demonstrate that a novel air electrode consisting of an unusual hierarchical arrangement of functionalized graphene sheets (with no catalyst) delivers an exceptionally high capacity of 15000 mAh/g in lithium-O(2) batteries which is the highest value ever reported in this fi...

In everyday life, one of the most frequent activities involves accelerating and decelerating an object held in precision grip. In many contexts, humans scale and synchronize their grip force (GF), normal to the finger/object contact, in anticipation of the expected tangential load force (LF), resulting from the combination of the gravitational and the inertial forces. In many contexts, GF and L...

A series of lithium complexes ([Ph₂P(o-C₆H₄-CH₂Li·TMEDA)] (1-Li), [PhP(o-C₆H₄-CH₃)(o-C₆H₄-CH₂Li·TMEDA)] (2-Li), [PhP(o-C₆H₄-CH₂Li·TMEDA)₂] (2-Li₂) and [P(o-C₆H₄-CH₂Li·TMEDA)₃] (3-Li₃)) was prepared from mono-, di- and tri-benzylphosphines and varying amounts of nBuLi and was characterized extensively by IR and ¹H, ⁷Li, 13C and 31P NMR spectroscopy. The molecular structures of complexes 1-Li and...

Immunohistochemical techniques were used to survey the distribution of several conventional transmitters, receptors, and neuropeptides in the pigeon nucleus of the basal optic root (nBOR), a component of the accessory optic system. Amongst the conventional neurotransmitters/modulators, the most intense labeling of fibers/terminals within the nBOR was obtained with antisera directed against glut...

Natural ageing responses of duplex structured Mg-6%Li and Mg-6%Li-6%Zn-1.2%Y alloys have been investigated. Microstructural analyses revealed that the precipitation and coarsening process of α-Mg particles could occur in β-Li phases of both two alloys during ageing process. Since a certain amount of Mg atoms in β-Li phases were consumed for the precipitation of abundant tiny MgLiZn particles, t...

Nine new species of the genus Stedocys Ono, 1995 are described: Stedocys gaolingensis Wu & Li sp. n. (♂♀, Guangxi), S. huangniuensis Wu & Li sp. n. (♀, Guangxi), S. ludiyanensis Wu & Li sp. n. (♂♀, Guangxi), S. matuoensis Wu & Li sp. n. (♀, Guangxi), S. pulianensis Wu & Li sp. n. (♂, Guangxi), S. shilinensis Wu & Li sp. n. (♂♀, Hainan), S. xianrenensis Wu & Li sp. n. (♂♀, Guangxi), S. xiangzhou...

The complexive abilities of 5,11,17-tddert-butyl-23 amino-25.26,27,28-tet3propoxy-calix[4]arere and5,1127-tri-amino-23 acelyktert-butylamide-25,26,27,28-tetrabutoxy-calixplarene towards alkali metalions Lit Nat, Kt RIC and Cs+ in methanol-chloroform mixture have been evaluated at 25 °C, using UVVis spectrophotometric techniques. The results showed that the hgands are capable to complex with all...

In the paper, we continue our study on the state complexity of combined operations on regular languages. We study the state complexities of k ∪ i=1 Li , k ∩ i=1 Li , k ∪ i=1 Li , and k ∩ i=1 Li , for regular languages Li, 1 ≤ i ≤ k. We obtain the exact bounds for these combined operations and show that the state complexities of k ∪ i=1 Li and k ∩ i=1 Li are the same as the mathematical composit...