An allenylidene Au(i) catalyst derived from triazole units and its initial application

2020 ◽  
Vol 56 (43) ◽  
pp. 5787-5790
Author(s):  
Bai-Ling Chen ◽  
Yuan Zhang ◽  
Ya-Ru Lei ◽  
Hui-Ming Wang ◽  
Zili Chen
Keyword(s):  
Nazarov Reaction ◽  
Initial Application

First example of allenylidene Au(i) catalyst, based upon alkynyl triazole unit, was developed and utilized in Au(i) mediated Nazarov reaction.

Technical Research for Undocking Scheme on the Horizontal Slipway for Towing the 15,000 Ton Launching Weight Bulk-Carrier

2013 ◽  
Vol 380-384 ◽  
pp. 186-190
Author(s):  
Ya Nan Huang ◽  
Da Lu Liu ◽  
Feng Sheng Sun ◽  
Yu Wang ◽  
Ming Xing Gao
Keyword(s):  
Production Efficiency ◽  
Initial Position ◽  
Bulk Carrier ◽  
Static State ◽  
Processing Scheme ◽  
Making Sense ◽  
Initial Application ◽  
Bottle Neck ◽  
High Production ◽  
The Moment

When comparing with ship construction within newly-built docks or on tilting slipways, ship constructing on the flat earth method can be said to be a new ship-building technique by which ship is built on a platform and launched with the aid of floating-dock or barge. Some obvious advantages of this technique are such as less investment in basic facilities, low production cost, high production efficiency, wide applicability of ship types, ability to overcome the bottle-neck effect of berths and docks. In this paper, a bulk-carrier being taken as an example, the design of launching processing scheme on the horizontal shipway includes calculation of launching weight and determination of hoisting force during the whole towing period. The whole towing process of hull can be divided into three stages, the first is from the static state to the moment of beginning to move, the second is from the initial position of movement to the front of slipway onto which the hull is predicted to be pulled, and the third is from the front of slipway to the designated position on the floating dock. Subsequently, after the hull being sealed and positioned correctly, the floating dock for launching may be towed to deeper water zone and the hull can be buoyed up on the water surface, and the whole launching process can be completed. From the research, the conclusion is made that the launching technique of this paper is available and feasible. Especially, this paper is the initial application of this method on the 15000t launching ship home and has the epoch-making sense.

scholarly journals Stereoselective Synthesis of Spirocyclic Ketones by Nazarov Reaction

2006 ◽  
Vol 8 (2) ◽  
pp. 353-353 ◽  
Author(s):  
Cristina Prandi ◽  
Annamaria Deagostino ◽  
Paolo Venturello ◽  
Ernesto G. Occhiato
Keyword(s):  
Stereoselective Synthesis ◽  
Nazarov Reaction

Integrated Unit Technology for Gas Field Surface Gathering and Transmission

2012 ◽  
Vol 271-272 ◽  
pp. 1328-1345
Author(s):  
Jin Li ◽  
Jian Yang Zhao
Keyword(s):  
Natural Gas ◽  
Power Consumption ◽  
New Technologies ◽  
Ball Valve ◽  
Gas Field ◽  
Pneumatic Control ◽  
Initial Application ◽  
Design Idea

In combination with the author's experiences in design for integrated unit for natural gas field gathering and transmission, this paper describes conventional practices and technical characteristics of integrated unit in the processes of standardization design and modularization establishment and analyzes the initial application of pneumatic control ball valve, wedge-shaped flowmeter and other new technologies for surface facilities in the gas field. As a result, a new design idea is proposed in this paper, i.e., to improve the integration level of surface facilities, to minimize power consumption and maintenance works and to realize unattended work mode.

The Retro-Nazarov Reaction.

ChemInform ◽  
2003 ◽  
Vol 34 (16) ◽  
Author(s):  
Michael Harmata ◽  
Dong Reyoul Lee
Keyword(s):  
Nazarov Reaction

ChemInform Abstract: PtI2-Catalyzed Tandem 3,3-Rearrangement/Nazarov Reaction of Arylpropargylic Esters: Synthesis of Indanone Derivatives.

ChemInform ◽  
2012 ◽  
Vol 43 (17) ◽  
pp. no-no
Author(s):  
Huaiji Zheng ◽  
Xingang Xie ◽  
Juan Yang ◽  
Changgui Zhao ◽  
Peng Jing ◽  
...  
Keyword(s):  
Nazarov Reaction

scholarly journals Retrospectives: The Introduction of the Cobb–Douglas Regression

2012 ◽  
Vol 26 (2) ◽  
pp. 223-236 ◽  
Author(s):  
Jeff Biddle
Keyword(s):  
Time Series Data ◽  
Series Data ◽  
Mathematical Representation ◽  
Least Squares Regression ◽  
Empirical Measures ◽  
Stable Relationship ◽  
Initial Application ◽  
Economic Association ◽  
The Relationship ◽  
Theory Of Production

At the 1927 meetings of the American Economic Association, Paul Douglas presented a paper entitled “A Theory of Production,” which he had coauthored with Charles Cobb. The paper proposed the now familiar Cobb–Douglas function as a mathematical representation of the relationship between capital, labor, and output. The paper's innovation, however, was not the function itself, which had originally been proposed by Knut Wicksell, but the use of the function as the basis of a statistical procedure for estimating the relationship between inputs and output. The paper's least squares regression of the log of the output-to-capital ratio in manufacturing on the log of the labor-to-capital ratio—the first Cobb–Douglas regression—was a realization of Douglas's innovative vision that a stable relationship between empirical measures of inputs and outputs could be discovered through statistical analysis, and that this stable relationship could cast light on important questions of economic theory and policy. This essay provides an account of the introduction of the Cobb–Douglas regression: its roots in Douglas's own work and in trends in economics in the 1920s, its initial application to time series data in the 1927 paper and Douglas's 1934 book The Theory of Wages, and the early reactions of economists to this new empirical tool.

scholarly journals 3 per cent-accurate predictions for the clustering of dark matter, haloes, and subhaloes, over a wide range of cosmologies and scales

2020 ◽  
Vol 499 (4) ◽  
pp. 4905-4917
Author(s):  
S Contreras ◽  
R E Angulo ◽  
M Zennaro ◽  
G Aricò ◽  
M Pellejero-Ibañez
Keyword(s):  
Dark Matter ◽  
Spatial Distribution ◽  
Cosmological Parameters ◽  
Galaxy Surveys ◽  
Circular Velocity ◽  
Initial Application ◽  
Wide Range ◽  
Massive Neutrinos ◽  
Dynamical Dark Energy ◽  
Better Than

ABSTRACT Predicting the spatial distribution of objects as a function of cosmology is an essential ingredient for the exploitation of future galaxy surveys. In this paper, we show that a specially designed suite of gravity-only simulations together with cosmology-rescaling algorithms can provide the clustering of dark matter, haloes, and subhaloes with high precision. Specifically, with only three N-body simulations, we obtain the power spectrum of dark matter at z = 0 and 1 to better than 3 per cent precision for essentially all currently viable values of eight cosmological parameters, including massive neutrinos and dynamical dark energy, and over the whole range of scales explored, 0.03 < $k/{h}^{-1}\, {\rm Mpc}^{-1}$ < 5. This precision holds at the same level for mass-selected haloes and for subhaloes selected according to their peak maximum circular velocity. As an initial application of these predictions, we successfully constrain Ωm, σ8, and the scatter in subhalo-abundance-matching employing the projected correlation function of mock SDSS galaxies.

scholarly journals Spatiotemporal analysis for detection of pre-symptomatic shape changes in neurodegenerative diseases: Initial application to the GENFI cohort

NeuroImage ◽  
2019 ◽  
Vol 188 ◽  
pp. 282-290 ◽  
Author(s):  
Claire Cury ◽  
Stanley Durrleman ◽  
David M. Cash ◽  
Marco Lorenzi ◽  
Jennifer M. Nicholas ◽  
...  
Keyword(s):  
Neurodegenerative Diseases ◽  
Spatiotemporal Analysis ◽  
Initial Application ◽  
Shape Changes
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