Vibrations Measurement of the Funicular Generated Vibrations on Gediminas Hill North Part Slope

2017 ◽  
Author(s):  
Šarunas Skuodis ◽  
Kestutis Kelevišius ◽  
Gintaras Žaržojus
Keyword(s):  
Slope Stability ◽  
Late Pleistocene ◽  
Wave Energy ◽  
Quaternary System ◽  
Experimental Measurements ◽  
Vibration Level ◽  
Hill Slope ◽  
Propagating Waves ◽  
North Part ◽  
General Slope

An experimental measurements of the funicular generated vibrations provided after Gediminas Hill North part slope landslide, which occurred on 2016. The geology of Gediminas Hill made up strata of Quaternary system late Pleistocene glacial and glaciofliuvial coarse and fine deposit.The purpose of this measurement was to determine, whether funicular generated vibrations during exploitation is the significant slope destabilizing factor. For vibration measurements in X, Y and Z directions were implemented equipment, developed by the authors. Measurements in 25 different points on the Gediminas Hill slope were perfirmed during funicular movement up and down. Analysis of obtained results revealed, that the highest vibration level mainly localized at the top of funicular foundations, wave energy is not large, propagating waves greatly dampens in the soil and there is no effect for general slope stability and the funicular exploitation was not the main reason of the occurred landslide in 2016 Spring.

Evidence for a Cold, Dry Full-Glacial Climate in the American Southwest

1978 ◽  
Vol 9 (1) ◽  
pp. 22-40 ◽  
Author(s):  
G. Robert Brakenridge
Keyword(s):  
Soil Moisture ◽  
Slope Stability ◽  
American Southwest ◽  
Alluvial Fan ◽  
Traditional Methods ◽  
Water Budgets ◽  
The Past ◽  
Hill Slope ◽  
High Elevations ◽  
Glacial Climate

Analysis of the evidence concerning full-glacial (27,000–13,000 yr BP) time in the American Southwest has resulted in a reinterpretation of the past climate. After correction for previous errors, which include the use of (1) the July 0°C isotherm as an indicator of modern snowline and (2) relict cirques at the head of heavily glaciated valleys as indicators of past snowline, orographic snowline is estimated to have been about 1000 m lower. This, combined with similar depression estimates for timberline and for cryogenic deposits, results in an annual cooling estimate of 7–8°C. The cooler temperatures caused deposition of coarse “bouldery” alluvial-fan sediments by streams draining areas at high elevations, as well as hill-slope stability, soil development, and subsurface weathering in the lower desert ranges. Reliability of paleoclimatic inferences from water budgets of the extinct paleolakes is questioned on the basis that they exclude groundwater effects. However, recalculation of two water budgets following traditional methods indicates that lowered evaporation rates accompanying a 7–8°C annual cooling would have sufficed to maintain these lakes. Similarly, increased soil moisture would have allowed coniferous woodland to grow ∼700 m lower into the deserts, the maximum recorded by Pleistocene pack rat middens. Therefore, no significant increase in annual precipitation is inferred for full-glacial times.

Insights into the composition exploration of novel hydrogen storage alloys: evaluation of the Mg–Ni–Nd–H phase diagram

2017 ◽  
Vol 5 (8) ◽  
pp. 3848-3864 ◽  
Author(s):  
Qian Li ◽  
Qun Luo ◽  
Qin-Fen Gu
Keyword(s):  
Phase Diagram ◽  
Hydrogen Storage ◽  
First Principles ◽  
Quaternary System ◽  
Alloy Composition ◽  
Experimental Measurements ◽  
Processing Conditions ◽  
First Principles Calculations ◽  
Hydrogen Storage Alloys ◽  
Efficient Tool

In order to provide an efficient tool to explore alloy composition and processing conditions for Mg-based alloys with good hydriding/dehydriding (H/D) properties, investigation of the Mg–Ni–Nd–H quaternary system was carried out by experimental measurements and CALPHAD thermodynamic analysis combined with first-principles calculations.

Experimental Performance for a Universal Single Mooring Platform Applied to Wave-Energy Conversion System

2013 ◽  
Vol 385-386 ◽  
pp. 1070-1073
Author(s):  
Hisen Hua Lee ◽  
T.J. Wu
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Water Tank ◽  
Wave Energy Conversion ◽  
Power Generators ◽  
Propagating Waves ◽  
Conversion System ◽  
Energy Conversion System ◽  
Offshore Wave ◽  
Incident Waves

For an offshore platform applied to wave-energy conversion system, in order to catch the maximum waves to generate more powers, similar to wind-energy power generators, a range of angles for the devices normal to the propagating direction of incident waves is required, particularly when the power converting system has directional preference. A single mooring system would allow the offshore wave-energy conversion system to turn freely in accordance to the action of strong directions of propagating waves and in this way, most energy induced from the incident waves can be caught and converted into reusable powers. The aim of this study is to find the efficiency of single-moored platform applied to a wave power converting system through an experimental test in the water tank.

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