Quantifying the Stabilizing Effect of Forests on Shallow Landslide-Prone Slopes

Author(s):  
Luuk Dorren ◽  
Massimiliano Schwarz
2012 ◽  
Vol 2 (3) ◽  
pp. 121-124
Author(s):  
Prof. N. R. Patil Prof. N. R. Patil ◽  
◽  
Prof. D. R. Kulkarni Prof. D. R. Kulkarni ◽  
Prof. S. D. Talegaonkar Prof. S. D. Talegaonkar

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  

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.


Alloy Digest ◽  
1991 ◽  
Vol 40 (8) ◽  

Abstract ALLVAC 6A1-6V-2Sn is a highly beta stabilized alpha + beta titanium alloy, a modification of the 6 A1-4V system. Added vanadium plus copper and iron produce the stabilizing effect. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-98. Producer or source: Teledyne Allvac.


1981 ◽  
Vol 46 (8) ◽  
pp. 1856-1859 ◽  
Author(s):  
Tomáš I. Přistoupil ◽  
Stanislav Ulrych ◽  
Marie Kramlová

The stabilizing effect of glucose and sucrose upon haemoglobin molecules against oxidation during lyophilization was perturbated by the presence of fluid or greasy polyethylene glycols (m.w. 300-600 daltons) but not of the rigid ones (m.w. 1 500-6 000 daltons). The results corroborate the idea of a simple mechanical nature of haemoglobin stabilization under study.


2021 ◽  
Vol 60 (4) ◽  
pp. 2122-2126
Author(s):  
Marta A. Fik-Jaskółka ◽  
Izabela Pospieszna-Markiewicz ◽  
Giovanni N. Roviello ◽  
Maciej Kubicki ◽  
Wanda Radecka-Paryzek ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document