scholarly journals Analytical Study of the Performance of Electrodynamic Tether Orbit Transfer System with Consideration of Lifetime by the Impact of Space Debris.

2002 ◽  
Vol 44 (146) ◽  
pp. 183-189 ◽  
Author(s):  
Yoshiki Yamagiwa ◽  
Yukitaka Sakata ◽  
Tatsuya Hashimoto
Keyword(s):  
Analytical Study ◽  
Space Debris ◽  
Transfer System ◽  
Orbit Transfer ◽  
Electrodynamic Tether ◽  
The Impact

Comparative analytical study of Ashuddha Karaveera and Shuddha Karaveera

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Apeksha D. Patil ◽  
Dhiraj B. Patil
Keyword(s):  
Stainless Steel ◽  
Analytical Study ◽  
Warm Water ◽  
Foreign Matter ◽  
Steel Vessel ◽  
Mild Heat ◽  
Stainless Steel Vessel ◽  
The Impact

Karaveera (Cerebra thevetia Linn.) is reported under Upavisha Dravya in classical ayurvedic pharmacopeias. It is observed that Shodhana (purification procedures) of the mool should be carried out before its internal administration. There are different Shodhana methods mentioned in Ayurveda. In this study Godugdha was used as media. The impact of Shodhana was evaluated by physico analytical study. It clearly proves physico analytical changes during Shodhana. Ashuddha Karaveera was taken on white clean cloth and they dumped in Pottali with Godugdha. Pottali was tied to middle of wooden rod dipped in Godugdha in stainless steel vessel and mild heat given to pottali in Dolayantra. Shuddha Karaveera was obtained and then washed with leuk warm water and dried. Ashuddha Karaveera contains toxin in it which was removed after Shodhana process. So that foreign matter, loss on drying was less in Shuddha Karaveera and due to Shodhan process with Godugdha total ash, acid insoluble ash was more than that of Ashuddha Karaveera.

Debris/Micrometeoroid Impacts and Synergistic Effects on Spacecraft Materials

MRS Bulletin ◽  
2010 ◽  
Vol 35 (1) ◽  
pp. 41-47 ◽  
Author(s):  
E. Grossman ◽  
I. Gouzman ◽  
R. Verker
Keyword(s):  
Space Debris ◽  
Synergistic Effects ◽  
Degradation Mechanism ◽  
Space Environment ◽  
Materials Properties ◽  
Gas Gun ◽  
Naturally Occurring ◽  
Space Activity ◽  
The Impact ◽  
Debris Impact

AbstractIn the last 40 years, the increased space activity created a new form of space environment of hypervelocity objects—space debris—that have no functional use. The space debris, together with naturally occurring ultrahigh velocity meteoroids, presents a significant hazard to spacecraft. Collision with space debris or meteoroids might result in disfunction of external units such as solar cells, affecting materials properties, contaminating optical devices, or destroying satellites. The collision normally results in the formation of additional debris, increasing the hazard for future missions. The hypervelocity debris effect is studied by retrieving materials from space or by using ground simulation facilities. Simulation facilities, which include the light gas gun and Laser Driven Flyer methods, are used for studying the materials degradation due to debris impact. The impact effect could be accelerated when occurring simultaneously with other space environment components, such as atomic oxygen, ultraviolet, or x-ray radiation. Understanding the degradation mechanism might help in developing materials that will withstand the increasing hazard from the space debris, allowing for longer space missions. The large increase in space debris population and the associated risk to space activity requires significant measures to mitigate this hazard. Most current efforts are being devoted to prevention of collisions by keeping track of the larger debris and avoiding formation of new debris.

Analytical Study of the Oblique Impact of a Rod with a Flat Using an Elasto-Plastic Contact Model

2015 ◽  
Vol 801 ◽  
pp. 25-32
Author(s):  
Ozdes Cermik ◽  
Hamid Ghaednia ◽  
Dan B. Marghitu
Keyword(s):  
Impact Velocity ◽  
Contact Force ◽  
Analytical Study ◽  
Initial Conditions ◽  
Permanent Deformation ◽  
Oblique Impact ◽  
Coefficient Of Restitution ◽  
Contact Model ◽  
Impact Angles ◽  
The Impact

In the current study a flattening contact model, combined with a permanent deformation expression, has been analyzed for the oblique impact case. The model has been simulated for different initial conditions using MATLAB. The initial impact velocity used for the simulations ranges from 0.5 to 3 m/s. The results are compared theoretically for four different impact angles including 20, 45, 70, and 90 degrees. The contact force, the linear and the angular motion, the permanent deformation, and the coefficient of restitution have been analyzed. It is assumed that sliding occurs throughout the impact.

scholarly journals Pakistan-United States Diplomatic Relations: Analytical Study

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Abdul Rahim , Dr. Adil Zaman Kasi
Keyword(s):  
United States ◽  
Analytical Study ◽  
Reciprocal Relationship ◽  
Impact Factors ◽  
Diplomatic Relations ◽  
Political Factors ◽  
The Social ◽  
Osama Bin Laden ◽  
Relationship Of ◽  
The Impact

This research paper discusses the reciprocal relationship of Pakistan and United States. Pakistan and United States are engaged in transactional relationship for gaining the credibility of through securing their national interest which bought distractive approaches in bilateral relationship. Historically, Pakistan-United States have been supporting each other against the terrorism as had strong diplomatic alignment in countering terrorism, extremism and fundamentalism. The distrust prevailed and occupied which dismantle the international move to dismantle the terror. The uncertainty of relationship causes a cataclysmic events which provides distrust as well as dismantle the international coalition for the peace establishment. This paper includes the diplomatic ties between Pakistan and United States specially post 9/11. The diplomatic successful alignment for the international peace brought effective orientation thereafter the impact factors of diverse misunderstanding which were mismanaged diplomatically as cases of Raymond Davis, Salala Check post, nuclear proliferation, Osama Bin Laden, Drone Attacks, and Memogate. Their diplopic move is essential to be revamped for the social, economic and political factors which sources the regional peace of South and Central Asia.  

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