INFLUENCE OF TECHNOLOGICAL PARAMETERS OF CANTILEVER-TYPE SCRAPER FOR MANURE DISPOSAL ON ITS PERFORMANCE INDICATORS

2016 ◽  
Vol 11 (1) ◽  
pp. 92-95
Author(s):  
Филипчик ◽  
Vitaliy Filipchik ◽  
Савиных ◽  
Petr Savinykh ◽  
Алешкин ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Process Parameters ◽  
Performance Indicators ◽  
Theoretical Studies ◽  
Technological Parameters ◽  
Livestock Farms ◽  
Experimental And Theoretical Studies

The article presents the results of experimental and theoretical studies of dependence of performance indicators of cantilever-type scraper to manure disposal from the process parameters, namely, the manure friction coefficient and its velocity, when cleaning manure from livestock farms with captive raising of animals. We obtained a dependence of consumed power, expended on the drive of cantilever-type scraper, from manure friction coefficient and its velocity.

The Numerical Simulation of Air Bulge Forming of Profiled Can

2010 ◽  
Vol 97-101 ◽  
pp. 2774-2778
Author(s):  
Jie Jin ◽  
Xin He
Keyword(s):  
Numerical Simulation ◽  
Parameter Estimation ◽  
Friction Coefficient ◽  
Process Parameters ◽  
Wall Thickness ◽  
Process Parameter ◽  
The Other ◽  
Technological Parameters ◽  
Forming Process ◽  
Inner Pressure

Air bulge forming is a forming process where an inner pressure deforms the material to the shape of a die cavity. The main concerns about such a process of profiled cans are to avoid wall thickness reduction, wrinkling and bursting. The success of this process strongly depends on the choice of process parameters, i.e. the properties of material, thickness and inner pressure. By transforming the problem into a deformation controlled rather than a force controlled process, the results from the process parameter estimation become more reliable but on the other hand less intuitive. In this context, the influence of materials, friction coefficient, transitional fillet radius, thickness and bulging load are studied and some suited technological parameters and forming rules are obtained. The most important point is that the simulation and results of experiments are probably consistent.

The Stabilizing Effect of Pre-Equilibria: A Trifluoromethyl Complex as CF2 Reservoir in Catalytic Olefin Difluorocarbenation

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  
Keyword(s):  
High Selectivity ◽  
Side Reactions ◽  
Theoretical Studies ◽  
Attractive Feature ◽  
Catalyst Recovery ◽  
Wide Range ◽  
Stabilizing Effect ◽  
Experimental And Theoretical Studies

A new, efficient, catalytic difluorocarbenation of olefins to give 1,1-difluorocyclopropanes is presented. The catalyst, an organobismuth complex, uses TMSCF<sub>3</sub> as a stoichiometric difluorocarbene source. We demonstrate both the viability and robustness of this reaction over a wide range of alkenes and alkynes, including electron-poor alkenes, to generate the corresponding 1,1-difluorocyclopropanes and 1,1-difluorocyclopropenes. Ease of catalyst recovery from the reaction mixture is another attractive feature of this method. In depth experimental and theoretical studies showed that the key difluorocarbene-generating step proceeds through a bismuth non-redox synchronous mechanism generating a highly reactive free CF<sub>2</sub> in an endergonic pre-equilibrium. It is the reversibility when generating the difluorocarbene that accounts for the high selectivity, while minimizing CF<sub>2</sub>-recombination side-reactions.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

Homo- and heterobimetallic trihydride complexes stabilized by the tripodal phosphine ligand MeC(CH2PPh2)3: experimental and theoretical studies

1989 ◽  
Vol 28 (13) ◽  
pp. 2552-2560 ◽  
Author(s):  
Claudio Bianchini ◽  
Franco Laschi ◽  
Dante Masi ◽  
Carlo Mealli ◽  
Andrea Meli ◽  
...  
Keyword(s):  
Phosphine Ligand ◽  
Theoretical Studies ◽  
Experimental And Theoretical Studies
Sign in / Sign up

Export Citation Format

Share Document