scholarly journals STRUCTURAL METHOD FOR DETERMINING DEFORMATIONS BY GEODETIC MEASUREMENTS

2019 ◽  
Vol 45 (2) ◽  
pp. 92-95
Author(s):  
Valeriy Gladilin ◽  
Vadim Belenok ◽  
Liliia Hebryn-Baidy ◽  
Natali Chookarina
Keyword(s):  
Dynamic System ◽  
Poor Performance ◽  
Center Of Gravity ◽  
Variable Load ◽  
Structural Method ◽  
Industrial Equipment ◽  
Precision Equipment ◽  
Geodetic Measurements ◽  
Vertical Displacements

Industrial equipment is a dynamic system that deforms during installation (assembly) and during operation. Under the influence of variable load and mixing of the center of gravity of the equipment and foundations on which it is installed, uneven horizontal and vertical displacements occur, therefore individual equipment elements are unevenly deformed, which can lead to poor performance or stoppage of this equipment. Timely measurement of the displacement of certain points of equipment (deformations) of precision equipment with the help of geodetic and other methods and their correct use for correcting the geometry of the equipment will contribute to improving the operational properties and increasing the period of uninterrupted operation of equipment’s, for example, precision conveyor lines for assembling cars.

External work in walking

1963 ◽  
Vol 18 (1) ◽  
pp. 1-9 ◽  
Author(s):  
G. A. Cavagna ◽  
F. P. Saibene ◽  
R. Margaria
Keyword(s):  
Inertial Force ◽  
Center Of Gravity ◽  
The Body ◽  
External Work ◽  
High Speeds ◽  
Moving Body ◽  
Vertical Displacements ◽  
Lateral Displacements ◽  
Work Done ◽  
Static Contractions

From records obtained from a triple accelerometer applied to the trunk of a subject the displacements of the trunk in vertical, forward, and lateral directions have been calculated. With motion pictures taken simultaneously, displacements of the center of gravity within the body were measured. From these data the external mechanical work of walking was calculated. The sum of work for vertical and for forward displacements of the center of gravity of the body gives the total external work; energy for the lateral displacements was negligible. Total external work appears to be lower than that calculated from the vertical displacements alone, because work done in lifting is partly sustained by the inertial force of the forward-moving body. Total external work reaches a highest value (0.1 kcal/km kg) at the most economical speed of walking, 4 km/hr, which corresponds to an energy consumption of 0.48 kcal/km kg. At this speed the internal work appears negligible; it amounts to appreciable entities at very low speeds because of the static contractions of the muscles, and at high speeds because of considerable stiffening of the limbs and movements not involving a displacement of the center of gravity. Submitted on May 25, 1962

Geodetic measurements in the Dixie Valley Area

1957 ◽  
Vol 47 (4) ◽  
pp. 321-325
Author(s):  
C. A. Whitten
Keyword(s):  
Valley Floor ◽  
Similar Amount ◽  
East Side ◽  
The West ◽  
West Side ◽  
Geodetic Measurements ◽  
Vertical Displacements ◽  
Dixie Valley ◽  
Valley Area

abstract Resurveys made after the 1954 earthquake in the Dixie Valley Area determined the horizontal and vertical displacements which occurred. Triangulation stations on the west side of the fault moved north approximately 4 feet, and points on the east side moved south by a similar amount. Releveling showed a drop and also a tilt of a valley floor.

scholarly journals TO THE QUESTION OF DEFINING ERRORS ARISING IN THE ANALYSIS OF SHIP STABILITY IN SHIP COMPUTER SOFTWARE

2019 ◽  
pp. 7-15
Author(s):  
Irina Yakuta ◽  
Boris Samuilovich Guralnik
Keyword(s):  
Computer Software ◽  
Weather Conditions ◽  
Static Stability ◽  
Stability Diagram ◽  
Climatic Conditions ◽  
Center Of Gravity ◽  
Variable Load ◽  
Random Errors ◽  
Ship Stability ◽  
The Difference

The article shows the need to account the difference between real weather conditiona and weather parameters given in shipboard computer software. Taking into account the fact that climatic conditions in the oceans are getting severer, it is unsafe to rely on relevance and reliability of the shipboard software forecasts navigating in zones with extreme weather conditions. Having the opportunity on board to get enough accurate weather forecasts in advance a navigator can competently plan the future voyage and avoid the expected storm. It not always possible to calculate the divergence with the storm and a vessel can be affected by cyclonic activity for different reasons. The ships stability is considered reached if the weather criterion shows the area ratio b/a > 1 on a static stability diagram. The analysis showed that for this case b/a = 0.436, which is 2.3 times less the minimum allowable value. It is stated that in the course of a ship operation the displacement and heights of center of gravity increase on the empty ship. If the ship stability is controlled by calculations, there occur random errors of due to inaccuracy of evaluating variable load. An increase of displacement and a height of center of gravity of an empty ship, as well as accidental errors due to inaccuracy of evaluation of deadweight may reach in total over 100 tons for displacement and up to 0,20 m for elevation of center of gravity. This fact should be taken into account in the shipboard software analyses. There have been given examples of formulas determining the displacement errors and a height of center of gravity of the vessel under operational load

Orosensory Perception, Speech Production, and Deafness

1973 ◽  
Vol 16 (2) ◽  
pp. 257-266 ◽  
Author(s):  
Milo E. Bishop ◽  
Robert L. Ringel ◽  
Arthur S. House
Keyword(s):  
High School ◽  
Speech Production ◽  
Poor Performance ◽  
Normal Hearing ◽  
The Other ◽  
Functional Disorders ◽  
Form Discrimination ◽  
School Subjects ◽  
Oral Form ◽  
Similarities And Differences

The oral form-discrimination abilities of 18 orally educated and oriented deaf high school subjects were determined and compared to those of manually educated and oriented deaf subjects and normal-hearing subjects. The similarities and differences among the responses of the three groups were discussed and then compared to responses elicited from subjects with functional disorders of articulation. In general, the discrimination scores separated the manual deaf from the other two groups, particularly when differences in form shapes were involved in the test. The implications of the results for theories relating orosensory-discrimination abilities are discussed. It is postulated that, while a failure in oroperceptual functioning may lead to disorders of articulation, a failure to use the oral mechanism for speech activities, even in persons with normal orosensory capabilities, may result in poor performance on oroperceptual tasks.

Feeling Like a Burden

2020 ◽  
Vol 51 (4) ◽  
pp. 219-238
Author(s):  
James H. Wirth ◽  
Ashley Batts Allen ◽  
Emily M. Zitek
Keyword(s):  
Negative Affect ◽  
Poor Performance ◽  
Self Esteem ◽  
Social Consequences ◽  
Social Costs ◽  
Negative Outcomes ◽  
Negative Effects ◽  
Self Compassion

Abstract. We examined the negative outcomes, particularly social costs that result when a person harms their group by performing poorly, and whether self-compassion could buffer against these negative outcomes. In Studies 1 and 2, participants performed poorly and harmed their group or performed equal to their group. Harmful poor-performing participants felt more burdensome, experienced more negative affect, felt more ostracized, anticipated more exclusion, and felt lowered self-esteem than equal-performing participants. Studies 3 and 4 disentangled poor performance from harming a group. Poor-performing participants either harmed the group or caused no harm. Harmful poor-performing participants felt more burdensome and anticipated more exclusion, indicating the additional social consequences of a harmful poor performance over a non-harmful performance. Across studies, trait self-compassion was associated with reduced negative effects.

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