Rocket Science Research Articles

Solution of third-order Emden–Fowler-type equations using wavelet methods

PurposeThe numerical solution of third-order boundary value problems (BVPs) has a great importance because of their applications in fluid dynamics, aerodynamics, astrophysics, nuclear reactions, rocket science etc. The purpose of this paper is to develop two computational methods based on Hermite wavelet and Bernoulli wavelet for the solution of third-order initial/BVPs.Design/methodology/approachBecause of the presence of singularity and the strong nonlinear nature, most of third-order BVPs do not occupy exact solution. Therefore, numerical techniques play an important role for the solution of such type of third-order BVPs. The proposed methods convert third-order BVPs into a system of algebraic equations, and on solving them, approximate solution is obtained. Finally, the numerical simulation has been done to validate the reliability and accuracy of developed methods.FindingsThis paper discussed the solution of linear, nonlinear, nonlinear singular (Emden–Fowler type) and self-adjoint singularly perturbed singular (generalized Emden–Fowler type) third-order BVPs using wavelets. A comparison of the results of proposed methods with the results of existing methods has been given. The proposed methods give the accuracy up to 19 decimal places as the resolution level is increased.Originality/valueThis paper is one of the first in the literature that investigates the solution of third-order Emden–Fowler-type equations using Bernoulli and Hermite wavelets. This paper also discusses the error bounds of the proposed methods for the stability of approximate solutions.

Social Work, Cats and Rocket Science: Stories of Making a Difference in Social Work with Adults, Rob Mitchell, Mark Harvey, Elaine James and Hannah Morgan

Social Work, Cats and Rocket Science: Stories of Making a Difference in Social Work with Adults, Rob Mitchell, Mark Harvey, Elaine James and Hannah Morgan

Teacher's imaginative elaborations on adolescence: a Winnicottian reading

Abstract Adolescents in situations of social vulnerability demand a type of care, from parents, teachers, and society, that protects them from the additional risks to which they are exposed, without compromising the development of their autonomy. This qualitative study aimed to investigate the imaginative elaborations of 30 teachers about adolescence using an Interactive Narrative approach as an investigative resource. The narrative material was analyzed interpretively, searching for the affective-emotional senses underlying the elaborations of the participants, resulting in the following fields of meaning: "Do not turn adolescence into rocket science" and "Adolescence: a sign of danger". In addition to the pedagogical issues, the participants expressed difficulty in dealing with issues that are specific to the adolescent's emotional development, oscillating between stereotyped conceptions and an empathic posture in the face of adolescent immaturity. It is concluded that teachers experience ambivalent feelings towards adolescents, assuming either an authoritarian or a patronizing posture, understanding adolescent conflict as natural at this development stage.

Legal Implications of Technology Transfer to Nigeria

Legal implication of technology transfer is fraught with several controversies. Given the unique advantage of technology in the advancement of mankind in general vis-a-vis its destructive negative imperatives, opponents of its ideal usages argued that, in asserting its inherent advantages, its destructive disadvantages is not worth it. Citing cases of Hiroshima and Nagasaki in Japan in resolving the impasses of the Second World War, they argued that no sane nation would want to go that way again. The star wars with its attendant control leading to the strategic arms limitation treaty (salt) between the United States and the defunct Soviet Union was fraught with the quietest vigour. But then one cannot underestimate the unprecedented improvement in the livingstandard of man in all spheres of life, occasioned by advancement to technology. This paper examined most of the noble advantages of technology and its transfer in Nigeria with its unprecedented advancement, in the field of medicine, engineering, biomedics, agriculture, aviation, rocket science, production of weapons of mass destruction, etc. at the same time, looks at its limitations as a stop-gap to prevent what happened in history when its destructive operatives and the rat-race between the two super power, almost led to a third world war more than the water argued that technology transfer does not amount to mankind assembling plants to bring together party that were already manufactured in the countries of origin. The position is that technology transfer must translate into engaging the socio-cultural imperatives of a country to source for social raw materials and manufacturing goods and materials that are of immediate need and relevant to the country in question. The final position of this paper is that while its acquisition is central to the advancement of mankind, countries should be the watchword in its acquisition regardless of its inherent advantages.

North Korea: What is the Direction of Further Evolution

The article analyzes the changes that have occurred in the DPRK economy during the years of Kim Jong-un's rule. The article considers the significant shifts that have taken place in the direction of a market economy, both in industry and in agriculture. At the same time, it is noted that market innovations are officially presented under the guise of elements of self-financing and the further development of socialism. Not all of the functioning market schemes have received the appropriate legislative formalization and, thus, remain illegal, although they are widely used in practice. Nevertheless, the country has been successfully developing for a number of years, demonstrating steady economic growth, a construction boom, the widespread introduction of information technologies, as well as significant progress in rocket science and the improvement of the nuclear arsenal. Numerous missile tests in 2017 led to a sharp aggravation of the situation on the peninsula, tightening of international sanctions, slowing down development and freezing further "reforms". Kim Jong-un's attempts to find a way out of the current situation through initiating a negotiation process with the ROK and the United States undoubtedly contributed to reducing tension in the region, however, in general, they were not crowned with success. The course to create a self-sufficient economy with the appearance of the threat of COVID-19 was accomplished with a regime of severe self-isolation. In conclusion, considerations are expressed regarding the ways of further development of North Korea. It is predicted that the role of the state will increase in the economic life of the country, which, after a series of successes and achievements, has found itself in the most difficult situation in the last twenty years.

Physical Alloying of Plasma Metallization Carbide Nanocomposite Coating by Allotropic Carbon Nanostructures

The fundamental scientific problem for micro- and nano-electronics has been solved—methods for creating and investigating properties of physically doped materials with spatially inhomogeneous structure at the micro- and nano-meter scale have been developed. For the application of functional nanocomposite film coatings based on carbides of various transition metals structured by nanocarbon, for the first time in the world, we developed a new technique for their plasma deposition on a substrate without the use of reaction gases (hydrocarbons such as propane, acetylene, etc.). We have created nanostructured film materials, including those with increased strength and wear resistance, heterogeneous at the nanoscale, physically doped with nanostructures—quantum traps for free electrons. We learned how to simultaneously spray (in a plasma of a stationary magnetron discharge) carbides and graphite from a special mosaic target (carbide + carbon) made mechanically. As a result of such stationary sputtering of carbides and carbon, plasma nanostructured coatings were obtained from nanocarbides, metal nanocrystals and nanocarbon. Our design of such a target made it possible to intensively cool it in the magnetron body and spray its parts (carbide + carbon) simultaneously with a high power density of a constant plasma discharge—in the range of values from 40 W/cm2 to 125 W/cm2. Such sputtering with a change in the power or the initial relative surface areas of various parts of the mosaic target (carbon and carbide) made it possible to change the average density of carbide, metal and carbon in a nanostructured (nanocarbon and metal nanostructures) coating. The changed relative density of various components of the nanocomposite (nanostructures of carbide, metal, and carbon in the form of graphite) significantly affected the physical properties of the nanocomposite coating. The creating method of multiphase nanostructured composite coatings (based on carbides of transition metals) with high hardness of 30 GPa, a low coefficient of friction to dry 0.13 - 0.16, with high heat resistance up to 3000&#176C and thermal stability in the nanocrystalline state over 1200&#176C is developed. It is established that the presence of nanographite in the composite significantly improves the impact strength and extends the range of possible applications, compared with pure carbides. The solution to this problem will allow creating new nanostructured materials, investigating their various physical parameters with high accuracy, designing, manufacturing and operating devices with new technical and functional capabilities, including for the nuclear industry and rocket science.

Not Exactly Rocket Science: Looking at the Arrows, not the Boxes

This collection of integrated essays trace a number of key concepts: the differentiation of the “complex” from the “merely complicated”, the formation of the “knowledge cycle” from data to information to understanding to knowledge and finally to wisdom and, above all, knowing that asking the right question is as important as finding the answer. It traces a journey in complexity science in the hopes that lessons learned along the way have a universal appeal and utility. This is a work in progress and is not yet finished.

Rocket Science Rebooted

Chemistry & IndustryVolume 84, Issue 10 p. 27-29 Science & Innovation Rocket Science Rebooted First published: 16 October 2020 https://doi.org/10.1002/cind.8410_6.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume84, Issue10October 2020Pages 27-29 RelatedInformation

ПЕРСПЕКТИВЫ ПРИМЕНЕНИЯ АДДИТИВНЫХ ТЕХНОЛОГИЙ В АВИА- И РАКЕТОСТРОЕНИИ

SLM technology is an innovative production of products of complex geometric shapes through layer-by-layer material building-up based on a computer-based CAD model using special 3D printers. With the help of SLM technology, they create precise metal products for work as part of components and assemblies for critical purposes (for example, aerospace). SLM successfully replaces traditional manufacturing methods, since products built using SLM technology often surpass the properties of products made using traditional technologies.This technology has several advantages for the application and manufacture of aerospace products: the possible production of thin-walled parts, simplifying their production, by reducing the number of technological transitions, using computer programs and automation tools to optimize the product design, which opens up the possibility of reducing the weight of aircraft structural elements apparatuses.One of the opportunities that SLM technology allows to realize is the replacement of solid metal elements with openwork structures, ensuring a sufficient level of mechanical properties. The use of openwork designs and topological optimization can make it possible to lighten a part up to 50 %. However, it is important to ensure the necessary level of mechanical properties due to the reasonable design of elements: mesh thickness, cell size, and shape, etc. Besides, in aircraft and rocket science, often additive technologies are used to create products with internal channels of thin-walled products with inclined surfaces. Therefore, it is important to ensure the quality of thin-walled surfaces with different angles of inclination.Printing was carried out on a 3-D Alfa-150 printer manufactured by ALT Ukraine LLC. As part of the experiment, samples were made in the form of a cube with the internal structure of the honeycomb and a solid cube with equal dimensions in different modes. The second group of samples in the form of plates with different angles of inclination relative to the Z-axis (0°, 30°, 45°).When practicing printing modes with internal thin structures, it was found that under adverse conditions, fusion conditions were created, the metal fell through on a layer of powder, overhanging elements formed, and the lower surface with high roughness. Under favorable conditions, the lower surface is smooth, the layers are clearly defined, correspond to the given geometry of the model. An experiment was also performed to test the printing modes of flat samples with different angles of inclination. It has been established that different modes are optimal for different tilt angles. Thus, it was found that SLM technology allows you to create thin-section elements with maximum accuracy, and to produce parts with a unique geometric structure. According to the developed process parameters, parts of complex shape for operation in aerospace engineering can be created.

“It is not rocket science..” – Older peoples’ understanding of nutrition – A qualitative study

ObjectiveThe aim of this study was to: 1) explore older patients' knowledge, skills and behavior in relation to nutrition and 2) achieve an understanding of older patients’ experiences, understanding and attitudes towards management of nutritional needs. DesignSemi-structured interviews were conducted and analyzed using content analysis. The Readiness and Enablement Index for Health Technology (READHY) instrument was used as a framework. SettingTwo hospital units specialized in internal medicine located at two university hospitals in Copenhagen. ParticipantsPatients (N = 25) age 65 ≥ years and admitted to hospital for medical treatment. FindingsThe informants’ knowledge, behavior and attitude towards nutrition was influenced by their experience of food as an everyday phenomenon but less so by the experience of nutrition as important for their well-being and health. Three themes were identified: 1) Food – an everyday phenomenon; 2) Habits and preferences and 3) When food becomes nutrition. ConclusionOlder, ill patients have limited knowledge about specific needs for energy and protein and the importance of nutrition for their physical functioning. They have potential resources and competencies which can positively impact and be utilized in nutritional interventions. Social interaction, the pleasurable experience of eating well-prepared food, and daily routines facilitate their nutritional intake.

Leadership in the medical profession – it’s not rocket science

Cite this article: EFORT Open Rev 2020;5:354-360. DOI: 10.1302/2058-5241.5.200299

Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds.

In the ‘Rocket Science’ project, storage of Eruca sativa (salad rocket) seeds for six months on board the International Space Station resulted in delayed seedling establishment. Here we investigated the physiological and molecular mechanisms underpinning the spaceflight effects on dry seeds. We found that ‘Space’ seed germination vigor was reduced, and ageing sensitivity increased, but the spaceflight did not compromise seed viability and the development of normal seedlings. Comparative analysis of the transcriptomes (using RNAseq) in dry seeds and upon controlled artificial ageing treatment (CAAT) revealed differentially expressed genes (DEGs) associated with spaceflight and ageing. DEG categories enriched by spaceflight and CAAT included transcription and translation with reduced transcript abundances for 40S and 60S ribosomal subunit genes. Among the ‘spaceflight-up’ DEGs were heat shock proteins (HSPs), DNAJ-related chaperones, a heat shock factor (HSFA7a-like), and components of several DNA repair pathways (e.g., ATM, DNA ligase 1). The ‘response to radiation’ category was especially enriched in ‘spaceflight-up’ DEGs including HSPs, catalases, and the transcription factor HY5. The major finding from the physiological and transcriptome analysis is that spaceflight causes vigor loss and partial ageing during air-dry seed storage, for which space environmental factors and consequences for seed storage during spaceflights are discussed.

The Research of Processing Methods of Thin-Walled Waffle Constructions Taking into Account Technological Deformations

Technologists often notice deformations after machining waffle construction of the shell. In that case, size characteristics go beyond tolerance field. Waffle constructions are widely used in aviation and rocket science, because thin-walled constructions allow decreasing mass of products. Results of calculations of standard machining parameters are given in the article. Review of literature sources allow to summarize the main solutions of the problems with deformations. Author has made a conclusion of technological restrictions and field of application of selected approaches.

Concept of National Design University Leading to Self Reliance

The development in technology has hardly any interaction with different agencies working in the hi-tech areas such as nano-particles, atomic energy, rocket science, space, electronics and militia. Countries are too much concerned with the superstructures for cutting edge technological development. They remained sometimes project oriented or at times vertical without the knowledge of others working in the similar areas. For the country to be flexible in seeking political and security choices, there is a need to adopt a holistic approach to the technology development process. The need of the hour is to pay more attention in making our industrial base strong and sustainable. And equipping and raising the level of our scientist community, technologists and technicians. This will make us independent in all respects leading to self reliance.

A technique for image splicing detection using hybrid feature set

Image manipulation has no longer been rocket science for non-professionals. Tampering of images has become so popular due to the accessibility of free editing application in smart phone’s store, these applications work without any agreement or license from the user which makes the condition more vulnerable. The image alteration is not limited to the smart phone’s applications, they can be done online without downloading and signing in the application making the scenario even worst. These forged images are so tricky that they are not predictable with bare human eyes. So, in order to tackle with this delinquent act, one must develop such system which can instantly discriminate between the unique and altered image. One of the best technologies that can tackle the problem and helps to develop such a scheme is Machine learning. There are several classification techniques based on the requirement of the system that can be applied to the data set, resulting in the classification of images under the groups forged and unforged images. In this work, we have discussed the images which are being forged using Image splicing Technique, in which the region of an original image is cropped and pasted onto the other original image. In this paper, a machine learning classification technique logistic regression has been used to classify images into two classes, spliced and non-spliced images. For this, a combination of four handcrafted features has been extracted from images for feature vector. Then these feature vectors are trained using logistic regression classification model. 10-fold cross-validation test evaluation procedure has been used to evaluate the result. Finally, the comparative analysis of the proposed method with other state-of-the-art methods on three online available datasets is presented in the paper. It is observed that the obtained results perform better than state-of-the-art methods.

Science Fair: Holographic Visit, and: Science Fair: Pee Light, and: Science Fair: Roasting Pan Desalinator

Science Fair: Holographic Visit, and: Science Fair: Pee Light, and: Science Fair: Roasting Pan Desalinator Marilyn Nelson (bio) Science Fair: Holographic Visit My project began with the electric laser toyI beam for my cat to chase around the floor.All of the light waves in a laser beamare the same size: they vibrate equallyat the same time, and bend in the same way.Holograms are made of one laser beamsplit into two beams by a special lens.One half-beam shines onto a photo film,the other half, shined on the subject ofthe hologram, reflects onto the film.The beam unites in overlapping waveswhich the film catches and holds, like a dreamthat wakes you with newborn joy and heartbreak,where you're sitting next to your grandma again. [End Page 88] Science Fair: Pee Light Research into microbial fuel cellsshows us ways we can help the world's poorest.Breaking down organic material,microbes release protons and electrons.Catching them gives you electricity.First, I made a proton exchange membraneout of salt and unflavored gelatin.Anode a square of window screen, cathodea piece of wire. A shovelfulof wetlands muck, water, and when we addan organic material we get free,the microbes' work powers an LED.When you pee, you can make a few minutes of light.That might keep you safe. Or let you read at night. [End Page 89] Science Fair: Roasting Pan Desalinator Whether or not you believe in climate change,the weather's changing. Earth's temperatures climbhotter and fall frigider. Icebergs melt.Droughts last for years. Animals die of thirst.It isn't rocket science: kids like mearen't hear-not, see-not monkeys. My projectand bigger versions of it can providefresh water for farming, and for drinking.I drilled holes in a sheet of plexiglass,attached a tube leading from holes to a jar,placed ocean-water in a roasting panunder the plexiglass. Put it outside.Heated water evaporates: well, duh.What rises, captured, could make deserts green. [End Page 90] Marilyn Nelson Anuradha Bhowmik is a Bangladeshi-American poet and writer living in Philadelphia. She is a 2018 AWP Intro Journals Project Winner in Poetry, and she earned her MFA from Virginia Tech. Anuradha has received awards from the Kimmel Harding Nelson Center for the Arts, the Community of Writers at Squaw Valley, the New York State Summer Writers Institute, the Fine Arts Work Center in Provincetown, Frost Place, the Indiana University Writers' Conference, the Eckerd College Writers' Conference, and the Juniper Summer Writing Institute. Her work has appeared or is forthcoming in The Sun, diode poetry journal, Quarterly West, DIAGRAM, Shenandoah, Salt Hill, Hayden's Ferry Review, Nashville Review, Indiana Review, Bayou Magazine, Crab Orchard Review, Slice Magazine, Zone 3, The Normal School, Copper Nickel, and elsewhere. Anuradha can be found at www.anuradhabhowmik.com. Copyright © 2020 Pleiades and Pleiades Press

Simple Design of Solar Based Watering System for Plants: Application in Multi-Story Buildings

In this paper, the design of a solar-based watering system for plants in multi-story buildings is proposed. The main advantage of the design is that when the people are out of station or busy for particular days, the proposed solar-based system will water the plants for a particular time in a day. The proposed design is verified on a real-time hardware setup. The main advantage of the proposed design is that the mathematical approach is very simple and no need for any rocket science.

Науково-організаційна діяльність академіка НАН України С.М. Конюхова в галузі ракетно-космічної науки і техніки України: історіографія проблеми

Науково-організаційна діяльність академіка НАН України С.М. Конюхова в галузі ракетно-космічної науки і техніки України: історіографія проблеми

Deprescribing is not rocket science, but it is challenging

Deprescribing is not rocket science, but it is challenging

Incremental transformation: Success from farming system synergy

Those not immediately involved in managing a dryland farm sustainably in a risky water-limited environment such as Australia may think a comparison with rocket science a bit of a stretch. But if the level of challenge, the importance to humanity, the long-term multidisciplinary team approach and planning required, and the level of uncertainty inherent in the pursuit are measures, then I think the comparison is warranted. The importance of the farming systems agronomy research that has supported agriculture and food security in Australia and globally since William Farrer’s time perhaps receives less public attention than some other science areas such as genetics, genomics, or digital agriculture—indeed, agriculture is now literally “rocket science” as satellite-guided machines and sensors gather volumes of data about the soils, plants, and weather on farms at scales and speeds hitherto impossible. Yet despite spectacular advances in individual genetic or management technologies, few have been singularly transformational. Rather significant productivity improvements generally arise when a combination of technologies, often old and new are integrated and synergize in specific ways within a system—a process here termed incremental transformation. William Farrer himself was clearly aware of this fact, as this article shows, he placed as much importance on maintaining the fertility of the soil in which he grew wheat as on improving the wheat plant itself. This article first provides some background to Farrer and on his interests in Genotype × Environment × Management (G × E × M) interactions (though he certainly did not use that terminology). It then describes some examples from my own research teams, to demonstrate the ongoing impact that arises from research to capture synergies from new genetics and improved management in the pursuit of incremental transformation.