Balance of forces in aerodynamic fibre-spinning from a polypropylene melt

1979 ◽  
Vol 10 (3) ◽  
pp. 236-239 ◽  
Author(s):  
A. V. Genis ◽  
D. V. Fil'bert ◽  
A. A. Sindeev
Keyword(s):  
Fibre Spinning ◽  
Balance Of Forces ◽  
Polypropylene Melt

Dichotomy of Consumerizm and Communitarism as a Method of Balance of Forces in Society

2020 ◽  
Vol 20 (1) ◽  
pp. 83-91
Author(s):  
Aleksey E. Shishkin
Keyword(s):  
Middle Ages ◽  
Domestic Politics ◽  
Death Sentence ◽  
Consumer Society ◽  
Domestic Industry ◽  
Cultural Traditions ◽  
The People ◽  
Food Programs ◽  
Balance Of Forces ◽  
New Community

Relevance. The market-imposed system of consumerism overstepped the boundaries of bifurcation and entered into “legitimate rights” to abolish the living traditional world, thereby disturbing the balance in society and thereby signed the death sentence to itself. The problem of research. Exploring the possibilities of social reloading from consumerism to communitarianism to restore the balance of power in society. Scientific novelty and research results. Our novelty of research lies in the application of scientific tools to analyze a possible reload. We used the complementarity principle of N. Bohr, the principle of spontaneous emergence of I. Prigogine, the principle of incompatibility L. Zade, the principle of managing uncertainties, the principle of ignorance of individual opinions and collective ideas, the principle of conformity, the principle of diversity of development of a complex system, the principle of unity and mutual transitions, the principle oscillatory (pulsating) evolution – showed instability in the management of society by mondialist-compradors and a possible countdown of the transition from the sensual age to the ideation nnuyu, and in our case – from consumerism to communitarianism. The main purpose of the work. From the apparent modern triumph of consumerism over communitarianism, we are not interested in a fact-problem, but in the idea of transforming reality that can stop the process of obscuration. Discussion and Conclusion. In the Middle Ages, during the construction of the project “Holy Russia”, communities were created according to the principle of “big”. Around the devotee of piety, voluntary monastic settlements were created, which grew into suburbs. Of these, the ascetic-hesychast stood out, who went into the forest and chopped down a new temple. To the righteous people flocked, yearning for a just life. This is how a new community was created. There was a new prayer book and then the big man blessed him to organize other settlements. The state should be interested in finding new forms of solutions for educational, economic, technical, cultural and food programs, therefore the initiative of communitarianists should not be punished, but supported. Today, foreign investors are becoming owners of not only factories, but even entire branches of domestic industry and are able to significantly influence domestic politics in our country. The growing number of immigrants as a destabilizing factor is becoming increasingly important. In such a situation, the fate of the country depends on the ability of the people to a new unification. It is necessary to unite on the basis of religious and cultural traditions on the principle of professional fraternities; if only there would be more centers of spiritual culture, but not by the principle of quantity, as is always the case with officials, but by the qualitative qualification of the “big man” as a center of creative and integrative power. From the foregoing, the idea of building ideational (communitarian) cohorts is born, which, through their ascetic life and creative work, should set a new vector for historical development (“salt”) consumer society.

THE CONCEPT OF THE BALANCE OF FORCES IN THE 21ST CENTURY

2018 ◽  
Vol 28 (6) ◽  
pp. 1835-1847
Author(s):  
Vladimir Tomashevic ◽  
Hatidza Berisha ◽  
Aleksandar Cirakovic
Keyword(s):  
International Relations ◽  
21St Century ◽  
Scientific Understanding ◽  
Theoretical Understanding ◽  
Major Powers ◽  
Realistic Theory ◽  
World Power ◽  
History Of ◽  
Balance Of Forces ◽  
Single World

In this paper the authors proceed from defining the concept of balance of forces, theoretical understanding of the balance of forces from the aspect of the scientific understanding of the realistic theory of international relations with concrete examples from the history of international relations. However, the focus of the work is an analysis of the power between a single world power (USA) and major powers (Russia, China) in a possible balance of power.The aim of the paper is to try to point out, through a relatively brief review, the possibility of establishing a balance of forces in the 21st century.

scholarly journals Hierarchically Porous Silk/Activated-Carbon Composite Fibres for Adsorption and Repellence of Volatile Organic Compounds

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1207
Author(s):  
Aled D. Roberts ◽  
Jet-Sing M. Lee ◽  
Adrián Magaz ◽  
Martin W. Smith ◽  
Michael Dennis ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Carbon Composite ◽  
Hierarchically Porous ◽  
Surface Areas ◽  
Regenerated Silk Fibroin ◽  
Volatile Organic ◽  
Fibre Spinning ◽  
Solution Blow Spinning

Fabrics comprised of porous fibres could provide effective passive protection against chemical and biological (CB) threats whilst maintaining high air permeability (breathability). Here, we fabricate hierarchically porous fibres consisting of regenerated silk fibroin (RSF) and activated-carbon (AC) prepared through two fibre spinning techniques in combination with ice-templating—namely cryogenic solution blow spinning (Cryo-SBS) and cryogenic wet-spinning (Cryo-WS). The Cryo-WS RSF fibres had exceptionally small macropores (as low as 0.1 µm) and high specific surface areas (SSAs) of up to 79 m2·g−1. The incorporation of AC could further increase the SSA to 210 m2·g−1 (25 wt.% loading) whilst also increasing adsorption capacity for volatile organic compounds (VOCs).

scholarly journals Cribellate thread production as model for spider’s spinneret kinematics

2021 ◽  
Author(s):  
Margret Weissbach ◽  
Marius Neugebauer ◽  
Anna-Christin Joel
Keyword(s):  
Molecular Structure ◽  
Mechanical Properties ◽  
Fibre Type ◽  
Material Science ◽  
Spider Silk ◽  
Functional Unit ◽  
Material Strength ◽  
Spinning Process ◽  
Fibre Spinning ◽  
House Spider

AbstractSpider silk attracts researchers from the most diverse fields, such as material science or medicine. However, still little is known about silk aside from its molecular structure and material strength. Spiders produce many different silks and even join several silk types to one functional unit. In cribellate spiders, a complex multi-fibre system with up to six different silks affects the adherence to the prey. The assembly of these cribellate capture threads influences the mechanical properties as each fibre type absorbs forces specifically. For the interplay of fibres, spinnerets have to move spatially and come into contact with each other at specific points in time. However, spinneret kinematics are not well described though highly sophisticated movements are performed which are in no way inferior to the movements of other flexible appendages. We describe here the kinematics for the spinnerets involved in the cribellate spinning process of the grey house spider, Badumna longinqua, as an example of spinneret kinematics in general. With this information, we set a basis for understanding spinneret kinematics in other spinning processes of spiders and additionally provide inspiration for biomimetic multiple fibre spinning.

The Political Economy of Post-Independence India—A Review Article

1989 ◽  
Vol 48 (4) ◽  
pp. 787-797 ◽  
Author(s):  
Akhil Gupta
Keyword(s):  
Political Economy ◽  
Central Government ◽  
Organizational Structures ◽  
The State ◽  
The Political ◽  
Newly Industrialized Countries ◽  
The Past ◽  
Nation States ◽  
Balance Of Forces ◽  
The Third World

Economists and political scientists have become increasingly interested in the political economy of India during the past decade and particularly during the past three or four years. The titles under review will be valuable not only to India specialists but also to comparative scholars because of the intriguing mix of conditions found in India. More like a continent than a country in its diversity, India is in some ways very similar to densely populated, predominantly rural and agricultural China, differing most perhaps in the obstinacy and depth of its poverty. In the predominant role played by the state within an essentially capitalist economy, it is closer to the model of Western social democracies than it is to either prominently ideological capitalist or socialist nation-states; like other countries in the “third world,” the state in India plays a highly interventionist developmental role. Finally, since Independence it has pursued, more successfully than most nation-states in Latin America and Asia, policies of importsubstituting industrialization and relative autarchy. In terms of its political structures, India differs from most newly industrialized countries (NICs) in that it generally continues to function as a parliamentary democracy. The federal political system creates an intriguing balance of forces between central and the regional state governments, which are often ruled by opposition parties with agendas, ideologies, and organizational structures quite different from those of the central government.

scholarly journals Microtubule Flux and Sliding in Mitotic Spindles ofDrosophila Embryos

2002 ◽  
Vol 13 (11) ◽  
pp. 3967-3975 ◽  
Author(s):  
Ingrid Brust-Mascher ◽  
Jonathan M. Scholey
Keyword(s):  
Mitotic Spindles ◽  
Pole Motion ◽  
Spindle Poles ◽  
Balance Of Forces ◽  
Anaphase B

We proposed that spindle morphogenesis in Drosophilaembryos involves progression through four transient isometric structures in which a constant spacing of the spindle poles is maintained by a balance of forces generated by multiple microtubule (MT) motors and that tipping this balance drives pole-pole separation. Here we used fluorescent speckle microscopy to evaluate the influence of MT dynamics on the isometric state that persists through metaphase and anaphase A and on pole-pole separation in anaphase B. During metaphase and anaphase A, fluorescent punctae on kinetochore and interpolar MTs flux toward the poles at 0.03 μm/s, too slow to drive chromatid-to-pole motion at 0.11 μm/s, and during anaphase B, fluorescent punctae on interpolar MTs move away from the spindle equator at the same rate as the poles, consistent with MT-MT sliding. Loss of Ncd, a candidate flux motor or brake, did not affect flux in the metaphase/anaphase A isometric state or MT sliding in anaphase B but decreased the duration of the isometric state. Our results suggest that, throughout this isometric state, an outward force exerted on the spindle poles by MT sliding motors is balanced by flux, and that suppression of flux could tip the balance of forces at the onset of anaphase B, allowing MT sliding and polymerization to push the poles apart.

Design and Preliminary Testing of a Novel Dual-Chambered Syringe

2011 ◽  
Vol 5 (2) ◽  
Author(s):  
Karen May-Newman ◽  
Maria T. Matyska ◽  
Martin N. Lee
Keyword(s):  
Low Cost ◽  
Preliminary Test ◽  
Blood Stream ◽  
Medical Procedure ◽  
Dual Chamber ◽  
Two Fluids ◽  
Small Channel ◽  
Locking Mechanism ◽  
Fluid Properties ◽  
Balance Of Forces

Intravenous catheterization is the most common invasive medical procedure today and is designed to introduce medication directly into the blood stream. Common practice is to administer medicine with one syringe, followed by a saline flush to clear the line of any residual medication. The risk of infection due to the introduction of bacteria in the catheter hub is increased with the number of times the hub is accessed. In addition, the two-step process adds millions of nursing hours per year and is prone to error. The goal of this effort was to design and test a dual-chamber syringe that could be reliably used for both dispensing medicine and the saline flush, and be produced at a low cost. The syringe has a novel dual-chamber design with a proximal chamber for medicine and a distal chamber that contains saline. The saline chamber has a fixed volume when the handle is locked into position, which allows the handle to control the variable volume of the medicine chamber. Between the two chambers is a plunger that surrounds the small channel (which is an extension of the distal chamber) that separates the saline from the medicine. When the distal chamber is unlocked, the handle controls the volume of the saline chamber. By this mechanism, the syringe is able inject the medicine followed by the saline flush with a single access to the catheter hub. The smooth operation of the device relies on a locking mechanism to control the rear plunger and volume of the distal saline chamber, and a bubble plug residing in the small channel between the chambers that prevents mixing of the medicine and saline fluids. The bubble plug is held in place by a balance of forces that depend on geometric variables and fluid properties. The chosen design prevents mixing of the two fluids during the operation of the device, which was experimentally validated with mass spectrometry. The dual-chamber syringe has successfully achieved the design goal of a single syringe for the two-step catheter procedure of dispensing medicine and a saline flush. This novel design will reduce the potential for catheter-based infection, medical errors, medical waste, and clinician time. Preliminary test results indicate that this innovation can significantly improve the safety and efficiency of catheter-based administration of medicine.

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