scholarly journals On the oscillations of spatial vibration-isolating system of mining machines under the action of impact loads

2019 ◽  
Vol 109 ◽  
pp. 00052
Author(s):  
Mykola Lysytsia
Keyword(s):  
Oscillation Amplitude ◽  
Conveyor Belt ◽  
Point Of View ◽  
Experimental Results ◽  
Impact Loads ◽  
Belt Conveyer ◽  
Spatial Vibration

Theoretical and experimental results concerning interaction between lumpy loads and loading sections of a belt conveyer have been represented. The rational parameters of the loading section of the conveyor belt are determined from the point of view of reducing the amplitude of oscillations after the interaction. The regularities of oscillation amplitude of a loading section after interaction with a single lump have been identified.

Die intrinsische Systemreaktion des tribologisch beanspruchten Schmierfettes

2021 ◽  
Author(s):  
Erik Kuhn
Keyword(s):  
Driving Forces ◽  
Observation Point ◽  
Point Of View ◽  
Experimental Results ◽  
Research Paradigm ◽  
Lubricating Grease ◽  
New Research

This article deals with the observed reactions of a lubricating grease to tribological stress. An attempt is made to find the driving forces describe that are responsible for the intrinsic response. From these considerations, a new research paradigm is derived that leaves the traditional observation point of view. The investigations are illustrated with experimental results.

UNEXPECTED BEHAVIOR IN THE CROSSING OF MICROWAVE AND OPTICAL BEAMS

2005 ◽  
Vol 19 (27) ◽  
pp. 1403-1410 ◽  
Author(s):  
E. ALLARIA ◽  
R. MEUCCI ◽  
D. MUGNAI ◽  
A. RANFAGNI ◽  
C. RANFAGNI
Keyword(s):  
Lorentz Invariance ◽  
Point Of View ◽  
Experimental Results ◽  
Light Velocity ◽  
Broken Lorentz Invariance ◽  
Points Of View ◽  
Optical Beams ◽  
Definite Solution ◽  
Unexpected Behavior

The question of the superluminal speed of information was stopped at crossroads in the last few years. According to one point of view, this speed must be limited to the light velocity in vacuum, whereas a different point of view is more open in this respect and, under specific conditions, this limit is considered surmountable. Very recently, a third approach (based on the hypothesis of a local broken Lorentz-invariance) was proposed and, if confirmed, would go beyond the controversy of the two points of view mentioned above. It is therefore worthwhile to recall attention to this problem, which is far from having a definite solution. The present paper reports some experimental results (similar to those of Ref. 1) which can contribute to these discussions, and also considers the fact that they seem to give some support to the aforesaid third approach, although revised in terms of decaying waves.

scholarly journals Vector Representation for the Soil Erosion Model USLE,

1970 ◽  
Vol 66 (2) ◽  
Author(s):  
Petru CARDEI ◽  
Vasile HEREA ◽  
Vergil MURARU ◽  
Raluca SFARU
Keyword(s):  
Soil Erosion ◽  
Rainfall Event ◽  
Point Of View ◽  
Experimental Results ◽  
Vector Representation ◽  
Vector Form ◽  
Vector Graphics ◽  
Erosion Model ◽  
Daily Amount ◽  
Annual Period

This article presents a mathematical viewpoint as vector form on estimating the risk of erosion due to water action, starting from the original USLE. We started with a vector representation of pluviometric regime. Daily amount of rain during a year can be in the form vector graphics. This representation is equivalent to a vector. Starting from this representation is computed the factor of the rain erosivity. We found that other factors in the USLE formula allowed the same type of representation. These representations have been used in the daily calculating for the erosion. This point of view extends the USLE model using to the rainfall event erosivity assessment, similarly with the RUSLE models. This vision permit the comparison between the possible divisions of the annual period: month, weeks, days, hours, minutes or seconds. In this article the solution test are made by comparison of the result with experimental results obtained in the Valea Calugareasca vineyard.

Mechanistic Studies of Atomic Oxygen Reactions with Polymers and Combined Effects with Vacuum Ultraviolet Light

MRS Bulletin ◽  
2010 ◽  
Vol 35 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Masahito Tagawa ◽  
Timothy K. Minton
Keyword(s):  
Atomic Oxygen ◽  
Vacuum Ultraviolet ◽  
Uv Light ◽  
Synergistic Effects ◽  
Low Earth Orbit ◽  
Point Of View ◽  
Experimental Results ◽  
Space Environment ◽  
Combined Effects ◽  
The Individual

AbstractThis article focuses on mechanistic aspects of hyperthermal atomic oxygen reactions with polymers, which are the major contributor to material degradation in low Earth orbit. Due to the importance of well-controlled experiments in the understanding of the reaction mechanisms, ground-based experimental results obtained by a hyperthermal atomic oxygen beam generated by laser detonation facilities are mainly surveyed. Combined effects of atomic oxygen and vacuum ultraviolet (VUV) light on fluorinated polymers are also described. Such combined effects of hyperthermal atomic oxygen and VUV light are important not only from a fundamental point of view but also for engineering purposes (i.e., methodology for ground-based space environmental simulation). The VUV-sensitive polymers, poly(methyl methacrylate), and Teflon fluorinated ethylene-propylene do not show significant synergistic effects. Instead, the effect of combining atomic oxygen and VUV light produces erosion of the polymer that is the sum of the erosion caused by atomic oxygen and UV light acting individually. The experimental results suggest that material erosion in a complicated space environment may be quantitatively predicted if the erosion yields caused by the individual action of atomic oxygen and VUV light are known.

A SELF-RECTIFYING BIPOLAR RRAM DEVICE BASED ON Ni/HfO2/n+-Si STRUCTURE

2014 ◽  
Vol 28 (04) ◽  
pp. 1450030
Author(s):  
YINGTAO LI ◽  
XINYU JIANG ◽  
CHUNLAN TAO
Keyword(s):  
Resistive Switching ◽  
High Density ◽  
Point Of View ◽  
The Self ◽  
Experimental Results ◽  
Schottky Junction ◽  
Conductive Filament ◽  
Switching Mechanism ◽  
Switching Characteristics

A bipolar RRAM device based on Ni / HfO 2/n+- Si structure with self-rectifying characteristics is demonstrated for high density cross-bar memory application. Experimental results indicate that Ni conductive filament generated at LRS plays an important role in resistive switching, resulting in the formation of a Schottky junction at the Ni -CF/n+- Si interface which determines the self-rectifying behavior at LRS. These results are very important from the point of view of understanding the self-rectifying switching mechanism and improving the resistive switching characteristics of self-rectifying RRAM devices.

STOCHASTIC BACKGROUND OF GRAVITATIONAL WAVES

2000 ◽  
Vol 09 (03) ◽  
pp. 361-368 ◽  
Author(s):  
PIA ASTONE ◽  
VALERIA FERRARI ◽  
MICHELE MAGGIORE ◽  
JOSEPH D. ROMANO
Keyword(s):  
Data Analysis ◽  
Gravitational Waves ◽  
Point Of View ◽  
Experimental Results ◽  
Stochastic Background ◽  
Theoretical Predictions ◽  
The Status

The search for a stochastic background of gravitational waves is very interesting, both from a cosmological and astrophysical point of view. We give here a brief summary of the status of theoretical predictions, experimental results and data analysis activities.

scholarly journals Finding Music Formal Concepts Consistent with Acoustic Similarity

2020 ◽  
Author(s):  
Yoshiaki Okubo
Keyword(s):  
Efficient Algorithm ◽  
Formal Concept Analysis ◽  
Concept Analysis ◽  
Point Of View ◽  
Experimental Results ◽  
Formal Concept ◽  
Acoustic Similarity ◽  
Formal Concepts

In this paper, we present a method of finding conceptual clusters of music objects based on Formal Concept Analysis. A formal concept (FC) is defined as a pair of extent and intent which are sets of objects and terminological attributes commonly associated with the objects, respectively. Thus, an FC can be regarded as a conceptual cluster of similar objects for which its similarity can clearly be stated in terms of the intent. We especially discuss FCs in case of music objects, called music FCs. Since a music FC is based solely on terminological information, we often find extracted FCs would not always be satisfiable from acoustic point of view. In order to improve their quality, we additionally require our FCs to be consistent with acoustic similarity. We design an efficient algorithm for extracting desirable music FCs. Our experimental results for The MagnaTagATune Dataset shows usefulness of the proposed method.

scholarly journals EXPERIMENTAL STUDY AND ANALYSIS OF FLAT BELT CONVEYER SYSTEM WITH DIFFERENT WEIGHT CONDITION

2021 ◽  
Vol 8 (12) ◽  
pp. 328-332
Author(s):  
Vishnu Dutta Tiwari ◽  
Gouraw Beohar
Keyword(s):  
Experimental Study ◽  
Conveyor Belt ◽  
The Other ◽  
Belt Conveyer ◽  
Uneven Bottom ◽  
Weight Condition ◽  
Conveyor Belts ◽  
Conveyer System ◽  
Drive Pulley ◽  
Belt System

A conveyor belt system essentially consists of an endless belt of elastic material connected between two flat pulleys and driven by the rotation of one of the pulleys by a direct current motor. Usually, the material is fed to the belt near the other end of the pulley. The moving belt that carries the material to the drive pulley tends to sag between the two end pulleys due to its own weight. Rubber conveyor belts are commonly used to transport items with uneven bottom surfaces, small items that fall between rolls, or product bags that sag between rolls.

scholarly journals Novel User Level Data Leakage Detection Algorithm

2019 ◽  
Vol 8 (10) ◽  
pp. 2378-2381
Keyword(s):  
Performance Metrics ◽  
Detection Algorithm ◽  
Point Of View ◽  
Experimental Results ◽  
Detection Technique ◽  
Data Sources ◽  
Research Issue ◽  
Leakage Detection ◽  
Important Research ◽  
Level Data

Data leakage detection (DLD) is the most widely used detection technique in many applications such as etc. detecting data leakage by various data sources is an important research issue. Several researchers contributed to detect the data leakage by proposing various techniques. In the existing DLD techniques the performance metrics such as accuracy and time have been neglected. In this paper, we have proposed a new DLD algorithm and named it as novel user level data leakage detection algorithm (NULDLDA). In the proposed NULDLDA we have considered the user point of view to know the leakage of data by which agent among several existing agents. We have implemented and compared the NULDLDA with existing DLD. The experimental results indicate that proposed NULDLDA improved the performance over DLD with respect to time and accuracy.

scholarly journals On the Interaction of Gestural and Linguistic Perspective Taking

2021 ◽  
Vol 6 ◽  
Author(s):  
Stefan Hinterwimmer ◽  
Umesh Patil ◽  
Cornelia Ebert
Keyword(s):  
Perspective Taking ◽  
Test Item ◽  
Point Of View ◽  
Experimental Results ◽  
The Other ◽  
Clear Preference ◽  
Test Items ◽  
Linguistic Level ◽  
As If

In this paper, we investigate the question of whether and how perspective taking at the linguistic level interacts with perspective taking at the level of co-speech gestures. In an experimental rating study, we compared test items clearly expressing the perspective of an individual participating in the event described by the sentence with test items which clearly express the speaker’s or narrator’s perspective. Each test item was videotaped in two different versions: In one version, the speaker performed a co-speech gesture in which she enacted the event described by the sentence from a participant’s point of view (i.e. with a character viewpoint gesture). In the other version, she performed a co-speech gesture depicting the event described by the sentence as if it was observed from a distance (i.e. with an observer viewpoint gesture). Both versions of each test item were shown to participants who then had to decide which of the two versions they find more natural. Based on the experimental results we argue that there is no general need for perspective taking on the linguistic level to be aligned with perspective taking on the gestural level. Rather, there is clear preference for the more informative gesture.

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