The increase in directional stability of the wheel tractor when driving on non-horizontal support surface

2016 ◽  
Vol 6 (1) ◽  
pp. 194-202
Author(s):  
Петров ◽  
Aleksey Petrov ◽  
Стеновский ◽  
Viatcheslav Stenovsky ◽  
Белоусова ◽  
...  
Keyword(s):  
Functional Relationship ◽  
Power Balance ◽  
Support Surface ◽  
Theoretical Studies ◽  
Supporting Surface ◽  
Trajec Tory ◽  
Mode Of Operation ◽  
Object Of Study ◽  
Relationship Of ◽  
Horizontal Support

The aim of the study is to prevent the machine´s withdrawal from the technological trajec-tory in conditions of the slope agriculture. The object of study is the process of wheel tractor´s withdrawal of a given course in the mode of operation on sloping areas of the support surface. The results of theoretical studies of the power balance in the process of interaction between the tread elements with an inclined supporting surface are given. The functional relationship of pow-er given on the tractorexchange rate stability and configurational, geometric parameters of the tread´s working elements of the wheel mover.

scholarly journals The Decerebrate Cat Generates the Essential Features of the Force Constraint Strategy

2010 ◽  
Vol 103 (6) ◽  
pp. 3266-3273 ◽  
Author(s):  
Claire F. Honeycutt ◽  
T. Richard Nichols
Keyword(s):  
Intact Animal ◽  
Three Dimensional ◽  
Support Surface ◽  
Prior Training ◽  
Supporting Surface ◽  
Decerebrate Cat ◽  
Limb Position ◽  
Lower Brain Stem ◽  
Different Levels ◽  
Horizontal Support

Cats actively respond to horizontal perturbations of the supporting surface according to the force constraint strategy. In this strategy, the force responses fall into two groups oriented in either rostral and medial directions or caudal and lateral directions, rather than in strict opposition to the direction of perturbation. When the distance between forelimbs and hindlimbs is decreased, the responses are less constrained and directed more in line with the perturbation. We have recently shown that electromyographic responses from limb muscles of the decerebrate cat resemble those obtained in the intact animal. Our objectives here were to determine whether the decerebrate cat preparation would also exhibit the force constraint strategy and whether that strategy would exhibit the characteristic dependence on limb position on the strategy. Horizontal support surface perturbations were delivered and three-dimensional exerted forces were recorded from all four limbs. Clustered force responses were generated by all four limbs and were found to be statistically indistinguishable between animals decerebrated using two different levels of transection. The directionality of the force responses was preserved throughout successive time epochs during the perturbations. In addition, the clustering of force responses increased with distance between forelimbs and hindlimbs. These results indicate that the force constraint strategy used by terrestrial animals to maintain stability can be generated without the assistance of the cerebral cortices and without prior training. This suggests an important role for the lower brain stem and spinal cord in generating an appropriate strategy to maintain stability.

Functional Relationship of Polymerization Sites of Vertebrate Fibrinogens

1979 ◽  
Author(s):  
C Cierniewski ◽  
T Krajewski ◽  
E Janiak
Keyword(s):  
Gel Electrophoresis ◽  
Functional Relationship ◽  
Polyacrylamide Gel Electrophoresis ◽  
Polyacrylamide Gel ◽  
Functional Similarity ◽  
Fractionation Method ◽  
Relationship Of ◽  
Fibrin Monomers ◽  
Fibrinogen Molecule ◽  
Cold Ethanol Fractionation

Various studies on the interaction of immobilized mammalian fibrinogen and fibrin monomers with some fibrinogen derivatives demonstrated the presence of two sets of polymerization sites in the mammalian fibrinogen molecule. We obtained the same results while investigating the fibrinogen molecules of other classes of vertebrates /Pisces. Amphibia. Aves/. Despite significant differences among their subunit structures, all of them contain polymerization sites homologous to mammalian counterparts. Moreover, due to great functional similarity, fibrinogen or fibrin monomers of the analyzed species of Pisces. Amphibia. Aves and Mammalia interacted in a specific way with immobilized pig fibrin monomers or fibrinogen, respectively. Using these pig affinity adsorbents, fibrinogen and fibrin monomers of different vertebrates were isolated directly from plasma and analyzed by SDS polyacrylamide gel electrophoresis. Polypeptide compositions of eluted proteins were identical to those obtained for corresponding fibrinogen preparations isolated by cold-ethanol fractionation method. It appears to indicate that the nature of polymerization sites in vertebrate fibrinogens is alike.

Actor Relations in Interregional Cooperation Policy Dynamics Case Study: The Banjar Bakula Metropolitan Area Development Program in South Kalimantan Province

2018 ◽  
Vol 2 (2) ◽  
pp. 115
Author(s):  
Taufik Abrain
Keyword(s):  
Regional Cooperation ◽  
Development Program ◽  
Policy Dynamics ◽  
Interregional Cooperation ◽  
Object Of Study ◽  
Relationship Of ◽  
The Relationship ◽  
Area Development ◽  
Cooperation Policy

Several studies have shown that the success of interregional cooperation may be influenced by coordination, commitment, participation, variance of cooperation, structure, format of cooperation, and political will. Nevertheless, these factors do not stand alone since actor relations as a determining aspect is capable of driving those factors effectively. This article aims to examine the aspect of actor relations as a contributing factor that determines successful cooperation among regions. This is a qualitative research with the policy of inter-regional cooperation of the Banjarbakula Program, South Kalimantan Province from February 2017 to February 2018, set as its object of study. The result of this study states that the success of inter-regional cooperation is influenced by the relationship of actors in development factors as suggested by previous experts. The actors involved in the inter-regional cooperation examined in this case had become triggers of coordination, commitment, and participation toward success and failure, as well as the effectiveness of regional cooperation policy. Structural obstacles, ego-centric character, minimum budget availability, and non-visionary planning could be overcome as long as actor relations were properly managed.

Justification of design parameters of the fractional reaping conveyor and its devices for removal of beveled stems from under the wheels of the vehicle

2019 ◽  
Vol 1 (3) ◽  
pp. 1-10
Author(s):  
Mikhail M. Konstantinov ◽  
Ivan N. Glushkov ◽  
Sergey S. Pashinin ◽  
Igor I. Ognev ◽  
Tatyana V. Bedych
Keyword(s):  
Optimal Design ◽  
Technological Process ◽  
Design Parameters ◽  
Theoretical Studies ◽  
Optimal Parameters ◽  
Belt Conveyor ◽  
Grain Crops ◽  
Mode Of Operation ◽  
Optimal Values ◽  
Main Component

In this paper we consider the structural and technological process of the combine used in the process of separate harvesting of grain crops, as well as a number of its parameters. Among the main units of the combine, we allocate a conveyor and devices for removing beveled stems from under the wheels of the vehicle. The principle of operation of the conveyor at different phases of the Reaper and especially the removal of cut stems from under the wheels of the vehicle during operation of the Reaper. The results of theoretical studies on the establishment of the optimal design of the parameters of the belt conveyor are presented, the ranges of their optimal values are considered and determined. Studies on the establishment of optimal parameters of the screw divider in the Reaper, which is the main component of the device for removal of beveled stems, are presented. Taking into account the optimal design and mode of operation of the screw divider, the correct work is provided to remove the cut stems from under the wheels of the harvester.

scholarly journals COMPOUND NOUNS IN GERMAN LANGUAGE

2020 ◽  
Vol 1 (10(78)) ◽  
pp. 124-127
Author(s):  
Svitlana Korol
Keyword(s):  
Component Composition ◽  
Word Formation ◽  
Regular Growth ◽  
German Language ◽  
New Words ◽  
Plural Form ◽  
Compound Nouns ◽  
Object Of Study ◽  
Relationship Of

The article deals with one of the most common types of word formation in German as word compounding. Compound nouns have become the object of study, as this part of the language leads the way in the formation of new words in this way. The relevance of the research is reinforced by the fact that German compound nouns differ by their multicomponent structure and are in the process of regular growth of their numbers, so they are attracting the attention of Germanists of different generations continuously. The study has examined the nature of the component composition of composites, the types of bonding between components, the types of constituent components, the role of the connecting element, the syllable’s accentuation of components of the compound noun etc. The compound can be built from nouns, adjectives, verbs or an invariable element (prepositions). There is no limit of the number of the associated words. The last word in the compound always determines the gender and plural form of the compound noun. The connectors or linking elements in existing German compound words often correspond to old case endings (e.g., plural, genitive). These endings expressed the relationship of the compound parts to one another. The article considers the causes of the formation of complex nouns. Compounds make the German language more flexible. In general, compounds are used to convey more information in one word and for reasons of language economy. Special attention deserves such a phenomenon as Denglish. This is the mashing of words from the two languages to create new hybrid words.

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