Measurement of the WZ Production Cross Section in Proton-Proton Collisions at CME of 7 TeV with the ATLAS Detector

This document presents a measurement of WZ production in 1.02 fb-1 of pp collision data at CME of 7 TeV collected by the ATLAS experiment at LHC in 2011. The production cross-section is measured to be consistent with the Standard Model (SM) prediction. Limits on anomalous triple gauge boson couplings have been derived.Comment: Proceeding for DPF 2011 meetin

The studies and development of synthetic methods for the synthesis of bioactive natural occurring products

Organic synthesis is one of the most dynamic and fascinating fields of science. It has made massive contribution to the well-being of mankind for over a century. Modern synthetic chemistry has been highly developed, which allow us to prepare the complex molecules with various unique properties, but, there are many new principles, strategies and methods of synthesis waiting to be discovered. The accomplishments discussed in this thesis including the following: (1) Methodology for the synthesis of angularly fused aromatic ring systems and the convergent synthesis of 3-deoxyrabelomycin. (2) The efficient and stereoselective formal total synthesis of podophyllotoxin by tandem photoenolization/Intramolecular Diels-Alder reaction. (3) Photochemical induced radical ring opening and closing to form seven membered ring compounds. (4) Discovery of photochemical 1,9-hydrogen atom abstraction and its use in the synthesis of natural products

Computational Intelligence Inspired Data Delivery for Vehicle-to-Roadside Communications

We propose a vehicle-to-roadside communication protocol based on distributed clustering where a coalitional game approach is used to stimulate the vehicles to join a cluster, and a fuzzy logic algorithm is employed to generate stable clusters by considering multiple metrics of vehicle velocity, moving pattern, and signal qualities between vehicles. A reinforcement learning algorithm with game theory based reward allocation is employed to guide each vehicle to select the route that can maximize the whole network performance. The protocol is integrated with a multi-hop data delivery virtualization scheme that works on the top of the transport layer and provides high performance for multi-hop end-to-end data transmissions. We conduct realistic computer simulations to show the performance advantage of the protocol over other approaches

Hydrogen atom abstraction reactions in organic synthesis. A formal total synthesis of racemic podophyllotoxin

The key step in a synthesis of 1 was a tandem photoenolization/Diels-Alder reaction to produce 11. Hydrolysis of the acetal and ester followed by oxidation afforded 15, an advanced intermediate in the Meyers synthesis of 1

1,5- and 1,9-Hydrogen atom abstractions. Photochemical strategies for radical cyclizations

0.1 mM in dichloromethane. *The source phase, Aq I, contained a 1:l:l ratio of AMP, CMP, and GMP at a 10 mM concentration in each. The initial pH was adjusted by the careful addition of NaOH(aq). ‘Transport experiments were performed in a manner similar to those reported in refs 5 and 7. Values reported are the average of three independent measurements; estimated error \u3c5%. “Not determined. eControl experiment using 3,8,12,13,17,22-hexaethyl-2,7,18,23-tetramethylsapphyrin (0.1 mM) as the putative carrier

Evaluation of Load-Bearing Performance of Existing Cast Steel Node

This paper presents a preliminary evaluation of the load-bearing performance of an existing cast steel node in a constructed tennis stadium using numerical simulations and non-destructive field tests. Given the absolute stress values of the existing cast steel node were immeasurable, the accuracy of the numerical simulations were verified by comparing the stress increments derived from numerical simulations and non-destructive field tests. During the experiment, the existing cast steel node was loaded indirectly by moving the retractable roof to three different positions (i.e. closed, semi-opened and fully-opened configurations); thus, only the stress increments were recorded. Three simplified truss models and one solid finite-element model were developed to simulate the stress distributions with the corresponding roof positions. A comparison suggests that the stress increments simulated with the developed finite-element models were in good agreement with experimental results. Therefore, the simulated stress distributions can be used to judge the load-bearing performance of the existing cast steel node