Study of Dynamic Impacts at Combined Operations of the Thin Turning and Boring

2020 ◽  
pp. 226-235 ◽  
Author(s):  
Gennadii Oborskyi ◽  
Alexandr Orgiyan ◽  
Volodymyr Tonkonogyi ◽  
Albakush Aymen ◽  
Anna Balaniuk
Keyword(s):  
Combined Operations ◽  
Dynamic Impacts

scholarly journals The research of dynamic impacts on the hydraulic structure foundation base, transformed in the process of accident recovery

2018 ◽  
Vol 251 ◽  
pp. 04040
Author(s):  
Zaven Ter-Martirosyan ◽  
Ivan Luzin
Keyword(s):  
Field Experiments ◽  
Dynamic Properties ◽  
Soil Parameters ◽  
Experimental Site ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Foundation Base ◽  
Dynamic Impacts ◽  
Scale Experiment ◽  
Selection Of

The article presents the results of a comprehensive research of the dynamic impacts on a modified base. The modified base was obtained as a result of compensatory injection at the experimental site for the accident recovery at the hydraulic engineering structure. The complex study of the dynamic impacts includes special laboratory tests to determine the soil parameters, the finite element analysis of the experimental site, taking into account the dynamic properties, the selection of the necessary equipment for field experiments based on the numerical solution results, a full-scale experiment with the measurement of the foundation sediments of the experimental site.

William III and his two navies

1989 ◽  
Vol 43 (2) ◽  
pp. 117-132
Keyword(s):  
Turning Point ◽  
Short Interval ◽  
17Th Century ◽  
Dutch Republic ◽  
Glorious Revolution ◽  
Combined Operations ◽  
Common Enemy ◽  
The Common ◽  
William Iii ◽  
The Glorious Revolution

Soon after his accession to the English throne William’s two navies started combined operations against the common enemy France. The Nine Years War had broken out, and this was followed after a short interval by the War of the Spanish Succession. Combined naval operations by two allies were nothing uncommon in those days. Anglo- French fleets had fought the Dutch in no fewer than four fierce battles in 1672 and 1673. French and Dutch squadrons had cooperated against the English Navy in 1666, and much earlier in 1596 and 16252727 Anglo- Dutch fleets jointly attacked Spanish ports (1). In these examples cooperation never lasted long nor was it very close. Problems concerning the command structure were seldom satisfactorily solved. Allies regularly changed sides during the 17th century. The Glorious Revolution, however, can be treated as a turning point. England became involved in a generations-long struggle against France. The Dutch Republic under William III had already started to fight Louis XIV’s urge for expansion, more than 15 years earlier. Both countries almost became traditional allies. Right from the beginning in 1689 detailed arrangements were made for naval cooperation, long-standing ones as later developments showed.

Anatomically Complete Supraclavicular Reoperation for Recurrent Neurogenic Thoracic Outlet Syndrome: Clinical Characteristics, Operative Findings, and Long-term Outcomes

Hand ◽  
2021 ◽  
pp. 155894472098807
Author(s):  
Momodou L. Jammeh ◽  
J. Westley Ohman ◽  
Chandu Vemuri ◽  
Ahmmad A. Abuirqeba ◽  
Robert W. Thompson
Keyword(s):  
Thoracic Outlet Syndrome ◽  
Length Of Hospital Stay ◽  
Functional Improvement ◽  
Scalene Muscle ◽  
Neurogenic Thoracic Outlet Syndrome ◽  
First Rib ◽  
Previous Operation ◽  
Combined Operations ◽  
The Mean ◽  
Operative Findings

Background: The clinical outcomes of reoperations for recurrent neurogenic thoracic outlet syndrome (NTOS) remain undefined. Methods: From 2009 to 2019, 90 patients with recurrent NTOS underwent anatomically complete supraclavicular reoperation after previous operation(s) performed at other institutions using either supraclavicular (Prev-SC = 48), transaxillary (Prev-TA = 31), or multiple/combination (Prev-MC = 11) approaches. Prospectively maintained data were analyzed retrospectively. Results: The mean patient age was 39.9 ± 1.4 years, 72% were female, and the mean interval after previous operation was 4.1 ± 0.6 years. The mean Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score was 62 ± 2, reflecting substantial preoperative disability. Residual scalene muscle was present in 100% Prev-TA, 79% Prev-SC, and 55% Prev-MC ( P < .05). Retained/residual first rib was present in 90% Prev-TA, 75% Prev-SC, and 55% Prev-MC ( P < .05). There were no differences in operative time (overall 210 ± 5 minutes), length of hospital stay (4.7 ± 0.2 days), or 30-day readmissions (7%). During follow-up of 5.6 ± 0.3 years, the improvement in QuickDASH scores was 21 ± 2 (36% ± 3%) ( P < .01) and patient-rated outcomes were excellent in 10%, good in 36%, fair in 43%, and poor in 11%. Conclusions: Anatomically complete decompression for recurrent NTOS can be safely and effectively accomplished by supraclavicular reoperation, regardless of the type of previous operation. Residual scalene muscle and retained/residual first rib are more frequently encountered after transaxillary operations than after supraclavicular or multiple/combined operations. Supraclavicular reoperation can achieve significant symptom reduction and functional improvement for approximately 90% of patients with recurrent NTOS.

An initial study of the dynamic influences and interactions upon levels of sustainability at the global spatial scale

2021 ◽  
pp. 205301962110358
Author(s):  
Jason Phillips
Keyword(s):  
Population Growth ◽  
Greenhouse Gases ◽  
Spatial Scale ◽  
Influencing Factors ◽  
Initial Study ◽  
Global Environment ◽  
Human Relationship ◽  
Sustainable Society ◽  
Dynamic Impacts ◽  
Dominant Influence

This paper conducts an initial determination and evaluation of the fundamental dynamic influences and interactions upon indicated levels and nature of sustainability occurring, at the global spatial scale over the specified period of 2006–2016. This is achieved by the first full application of the Sustainability Dynamics Framework (SDF) to the results of the Sustainable Society Index (SSI). The results indicate that obtained S-values are potentially influenced primarily by a triumvirate of influencing factors – Population Growth, GDP and Greenhouse Gases. A cumulative analysis of indicator categories indicated that Environmental Wellbeing was the dominant influencing category upon obtained S-values for the period 2008–2014, and Anthropospheric Wellbeing was the dominant influence in 2006 and 2016. The analysis concludes that the triumvirate has potentially caused fundamental breaches and dynamic impacts and feedbacks upon the global environment-human relationship and system. Unless the triumvirate is managed and mitigated urgently, then there is a potential realistic risk of unsustainability occurring.

scholarly journals Cyber attacks in smart grid – dynamic impacts, analyses and recommendations

2020 ◽  
Vol 5 (4) ◽  
pp. 321-329
Author(s):  
B.M. Ruhul Amin ◽  
Seyedfoad Taghizadeh ◽  
Md. Shihanur Rahman ◽  
Md. Jahangir Hossain ◽  
Vijay Varadharajan ◽  
...  
Keyword(s):  
Smart Grid ◽  
Cyber Attacks ◽  
Dynamic Impacts
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