Method of fuel tank design development for future long-term space flights

1990 ◽  
Vol 21 (6-7) ◽  
pp. 439-447
Author(s):  
V.U. Bezugly ◽  
N.E. Boitsun ◽  
I.N. Kozlov ◽  
A.S. Makarova
2019 ◽  
Vol 13 (4) ◽  
pp. 685-713
Author(s):  
Sh. Sh. Nabiev ◽  
G. Yu. Grigor’ev ◽  
A. S. Lagutin ◽  
L. A. Palkina ◽  
A. A. Vasil’ev ◽  
...  

Author(s):  
Ashley Clark ◽  
Matthew Walker ◽  
Kyle Wetzlar ◽  
Stephen Choi ◽  
James Coe ◽  
...  
Keyword(s):  

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Ilario Puglia ◽  
Michele Balsamo ◽  
Marco Vukich ◽  
Valfredo Zolesi

The study and analysis of human physiology during short- and long-duration space flights are the most valuable approach in order to evaluate the effect of microgravity on the human body and to develop possible countermeasures in prevision of future exploratory missions and Mars expeditions. Hand performances such as force output and manipulation capacity are fundamental for astronauts’ intra- and extravehicular activities. Previous studies on upper limb conducted on astronauts during short-term missions (10 days) indicated a temporary partial reduction in the handgrip maximum voluntary contraction (MVC) followed by a prompt recovery and adaptation to weightlessness during the last days of the mission. In the present study, we report on the “Crew’s Health: Investigation on Reduced Operability” (CHIRO) protocol, developed for handgrip and pinch force investigations, performed during the six months increment 7 and increment 8 (2003-2004) onboard International Space Station (ISS). We found that handgrip and pinch force performance are reduced during long-term increments in space and are not followed by adaptation during the mission, as conversely reported during short-term increment experiments. The application of protocols developed in space will be eligible to astronauts during long-term space missions and to patients affected by muscle atrophy diseases or nervous system injury on Earth.


Author(s):  
Kyle Bethel ◽  
Steven C. Catha ◽  
Melvin F. Kanninen ◽  
Randall B. Stonesifer ◽  
Ken Charbonneau ◽  
...  

The research described in this paper centers on a composite of thermoplastic materials that can be inserted in a degraded steel pipe to completely restore its strength. Through the use of fabrics consisting of ultra high strength fibers that are co-helically wrapped over a thin walled thermoplastic cylindrical tube that serves as a core, arbitrarily high pressures can be achieved. This paper first outlines the design, manufacturing and installation procedures developed for this unique material to provide a context for the engineering research. Based on this outline, the technological basis that has been developed for assuring the strength and long term durability of this concept during its insertion, and in its very long term service as a liner in energy transmission pipelines, is presented in detail. The research that is described includes burst testing of the material in stand alone pipe form, load/elongation testing of ultra high strength fabrics, and linear and nonlinear elastic and viscoelastic analysis models. This body of work indicates that the concept is fundamentally feasible for restoring a wide range of large diameter natural gas and liquid transmission pipelines to be able to carry arbitrarily high pressures over very long lifetimes. It also indicates that liners can be safely installed in long lengths even in lines with severe bends in a continuous manner. With further research the concept has the potential for eliminating hydro testing and smart pigging during service, and could possibly be installed in some lines that are currently unpiggable.


2003 ◽  
Author(s):  
Kimberly L. Cook ◽  
Victoria Garrett ◽  
Alice C. Layton ◽  
Hebe M. Dionisi ◽  
Gary S. Sayler ◽  
...  

2021 ◽  
Author(s):  
Angelica Wiljén ◽  
John Chaplin ◽  
Vanessa Crine ◽  
William Jobe ◽  
Ensa Johnson ◽  
...  

BACKGROUND Children with long-term illness frequently experience symptoms that affect their daily life, and this is underreported in healthcare. Despite the large number of mHealth tools, few are based on a theoretical framework or supported by scientific knowledge. Incorporating universal design when developing a product ensures that all may benefit from the design and that person-centred communication is facilitated. OBJECTIVE Our study aimed to develop a person-centred communication support mHealth tool (i.e. Pictorial support in person-centred care for children: PicPecc) based on universal design principles for children with long-term illness to communicate their symptoms, using the co-design process by involving various stakeholder groups (children with long-term illness, parents, healthcare professionals, developers). METHODS The co-design development process included four phases: (i) interviews with seven children, 8 parents and 19 healthcare professionals to determine needs and wishes for support, (ii) workshop with 19 researchers, (iii) workshop with developers and (iv) interviews with 10 children, 9 parents and 21 healthcare professionals to evaluate the mock-up (prototype) of the developed mHealth tool. Data were synthesised using interpretive description. RESULTS There is a need for children with long-term illness to address symptoms such as fear, fatigue, nausea, pain, and anxiety. Fatigue and anxiety may be overlooked by healthcare professionals and therefore an easy-to-use tool to facilitate communication with the children is needed. Three common aspects were constructed: different perspectives on provided and perceived support, need for an easy tool to assess symptoms and to facilitate communication, as well as mapping the journey to facilitate recall. Parent and children stakeholders expressed a need for support when dealing with psychosocial issues, while parents were simultaneously concerned that children may regard the word anxiety as too alarming. However, the children themselves did not react to the word. Researchers repeated the importance of employing easy-to-use mHealth tools for children to communicate symptoms going beyond pain, e.g. anxiety and fatigue. The developers highlighted the practical and logistical implications of suggestions offered by other stakeholders and proposed best options for the development of the tool. CONCLUSIONS The co-designed developed PicPecc tool demonstrated the capacity to provide support when dealing with multiple symptoms and conditions. PicPecc opens a dialogue between the child and the healthcare professionals, and it addresses symptoms that may otherwise be overlooked. Future research includes usability testing and evaluation in hospitals, as well as in a home care setting. CLINICALTRIAL -


Author(s):  
Ruth Gannon Cook ◽  
Kathryn Ley

This study approaches educational marketing from the perspective of the customers, the students. Instructors and instructional designers have designed online learning using a process that revolves around delivery. The process addresses meeting the needs of administrators and aligns well with the growing demands of the educational marketplace. But the growing failure of students to successfully complete online courses warrants further exploration than simply adding more interactivities or instructor interaction. The authors pose that advertising and marketing have addressed complex consumer relationships for almost a century and have created long term successful customer relationships which could provide insights to help with higher education student retention issues. A look at design development research and marketing semiotics could provide greater understanding and student involvement to help marketing semiotics provide a deeper understanding of the importance of inclusion of students' life experiences and cultural histories.


2020 ◽  
Vol 10 (14) ◽  
pp. 4868
Author(s):  
Tanaka Kungwengwe ◽  
Richard Evans

The anterior cruciate ligament (ACL) provides stabilization support for the back and forth motion of the knee joint. ACL ruptures account for 50% of all sports-related knee injuries with approximately 76.6% of them requiring reconstructive surgery, necessitating long-term patient rehabilitation. Compliance with rehabilitation management programs, following ACL reconstruction, is fundamental for the successful restoration of the knee’s kinematics and reducing the risk of secondary osteoarthritis. Existing recovery programs are often paper-based and require patients to perform exercises at home, unsupervised, resulting in a low level of self-efficacy; by promoting self-efficacy in home-based settings, rehabilitation outcomes can improve. This paper reports the design development of the Sana system, a mobile and wearable application that adopts behavioral design principles and gamification theory to improve long-term post-operative outcomes for ACL reconstruction recovery. A feasibility study was conducted from 15 October 2019–13 May 2020, employing the double diamond framework and a human-centered design approach (BS EN ISO 9241-210: 2019). Eighteen participants were recruited, including eight domain experts (in fields such as user experience design, human factors, and physiotherapy), and ten representative users who had undergone long-term rehabilitation for musculoskeletal injuries.


2019 ◽  
Vol 12 (01) ◽  
pp. 1-19 ◽  
Author(s):  
Kelsey Medeiros ◽  
Jennifer Griffith

AbstractRecent events in the workplace, government, and college campuses in the US have brought the issues of sexual harassment and assault to the forefront of media and public discussion. Industrial and organizational (I-O) psychologists are uniquely suited to help address these issues by aiding in intervention development. Specifically, I-O psychologists can provide key insight regarding the context, design, development, and evaluation of sexual harassment and assault training efforts. Although some empirical evidence suggests that trainings are effective in the short term, there is little evidence to suggest long-term attitudinal or behavioral change outside of the training environment. Much of the research in this area, however, has focused solely on the training intervention, excluding the pre- and post-training environment. Thus, the present effort focuses on designing trainings that promote transfer, as well as improving measurement of desired outcomes, to provide a framework for improving sexual harassment and assault training. This framework addresses how individual differences, needs analysis, training design, evaluation, and post-training support contribute to lasting change while addressing the unique challenges associated with sexual harassment and assault. Last, this framework provides guidance for improving research in this area as well as practical suggestions for improving training programs.


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