Academic literature on the topic 'Surface instable'

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Journal articles on the topic "Surface instable"

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Wu, Yu-Ke, and Yong Liu. "Fractal-like multiple jets in electrospinning process." Thermal Science 24, no. 4 (2020): 2499–505. http://dx.doi.org/10.2298/tsci2004499w.

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The electrospinning process is greatly affected by the instability of Taylor cone, an instable point can eject a jet, and multiple instable points can produce multiple jets. A fractal-like multi-jet phenomenon was found in electrospinning process with auxiliary electrodes, and main factors affecting the spinning process were studied experimentally, which included solution viscosity, surface tension, and conductivity. The fractal-like multi-jet is feasible to control the fiber morphology and its output.
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Wang, Shao Lin, Yong Huang, Fang Wang, and Zhi Lin Liu. "Theoretical Analysis of Surface Waves on Liquid Jets in Crossflows with Deformation." Advanced Materials Research 681 (April 2013): 152–57. http://dx.doi.org/10.4028/www.scientific.net/amr.681.152.

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Liquid jets in cross air flows are widely used and play an important role in propulsion systems, such as ramjet combustors. Surface waves on the liquid jets in gaseous crossflows have been observed in numerous experiments. Especially for lower gas Webber number, liquid jets breaks up due to the surface waves. However compared with injecting into gas coaxial flow, liquid jet will be deformed in crossflow due to the transverse aerodynamic force. Deformation of jet is investigated by analyzing stress force equilibrium of the cross-section. Though linear instability analysis, dispersion relation a
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ZHANG, Yingying, Volker WITTSTOCK, and Matthias PUTZ. "SIMULATION FOR INSTABLE FLOATING OF HYDRODYNAMIC GUIDES DURING ACCELERATION AND AT CONSTANT VELOCITY." Journal of Machine Engineering 18, no. 3 (2018): 5–15. http://dx.doi.org/10.5604/01.3001.0012.4602.

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High speeds and the resulting hydrodynamic pressure lead to significant floating of the linear guides. During this movement, the floating behaviour shows phenomena that can be explained by the Reynolds equation. This paper presents a dynamic model of the floating behaviour, which adds tribological approaches to the common Reynolds equation since the floating behaviour does not only depend on the speed, but also on numerous other conditions. This developed simulation method is based on the use of finite difference elements and was implemented using Simulink and Matlab, allowing flexible impleme
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Mau, Le Dinh, Nguyen Duc Thinh, Nguyen Van Tuan, et al. "DISTRIBUTION FEATURES OF CURRENT SYSTEM IN NORTHERN CENTRAL VIETNAM COAST (HA TINH - THUA THIEN-HUE) DURING APRIL 2016." Tạp chí Khoa học và Công nghệ Biển 17, no. 4 (2018): 364–72. http://dx.doi.org/10.15625/1859-3097/17/4/11060.

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This paper presents the modeled results of general current pattern (daily average value) in Northern Central Vietnam Coast (Ha Tinh - Thua Thien-Hue) during April 2016. Study results show that in general, current flowed from the North to the South with small and instable velocity (V ≈ 0.1 - 0.2 m/s). From 2nd to 6th April current flowed from the South to the North. From 7th to 29th April current flowed from the North to the South. During 13rd to 16th April current velocity was weak (V ≤ 0.1 m/s). In the southern region of Thua Thien-Hue province, the direction of current was instable (from 6th
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Juijerm, P., I. Altenberger, U. Noster, and Berthold Scholtes. "Residual Stress Relaxation and Cyclic Deformation Behavior of Deep Rolled AlMg4.5Mn (AA5083) at Elevated Temperatures." Materials Science Forum 490-491 (July 2005): 436–41. http://dx.doi.org/10.4028/www.scientific.net/msf.490-491.436.

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The cyclic deformation behavior of deep rolled and polished aluminium wrought alloy AlMg4,5Mn in the temperature range 20-300°C has been investigated. Results of quasistatic tension and compression tests of untreated specimens in the temperature range 20-300°C are presented. To characterize the fatigue behavior for stress-controlled tests as a function of test temperature, s-n curves, cyclic deformations curves and mean strains as a function of number of cycles are given. The residual stress- and work hardening states near the surface of deep rolled aluminium alloy AlMg4.5Mn before and after f
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Jiang, Ren Hao, Wei Li, Yan Ping Shi, and Jiang He. "Study on Interior Fracture Property of High Strength Steel in Very High Cycle Regime." Advanced Materials Research 482-484 (February 2012): 1169–75. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1169.

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Based on the fracture mechanics theory and fracture surface topography analysis (FRASTA) method, the interior fracture property of a bearing steel in very high cycle regime was studied by means of rotary bending fatigue test. As a result, this bearing steel represents the duplex S-N curves characteristic, where the interior inclusion-induced fracture is the predominant fracture mode in very high cycle regime. The rough granular bright facet (GBF) area corresponding to smaller inclusion is usually formed in the lifetime larger than 106 cycles, whose formation progress can be interpreted as the
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Jiang, Zhi Cai, and Wei Lian Qu. "Buckling Analysis of the Tube Compression-Bending Member in Elastic-Plastic State with ANSYS." Advanced Materials Research 327 (September 2011): 143–48. http://dx.doi.org/10.4028/www.scientific.net/amr.327.143.

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Stability is an important issue in steel structure design.When the steel member is subjected to elastic-plastic instability, the axial compression stiffness reduces with the increasing axial pressure and bending moment at end. Therefore, the authors analyze the process of steel member that is instable in elastic-plastic state in this paper by studying the degradation laws of axial compression stiffness. The eigenvalue buckling and nonlinear buckling analyses of axially compressed member and compression-bending member are carried out by using commercial package ANSYS in this study. The relation
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Zhang, Cheng, Rong Mo, Hai Cheng Yang, Xiao Jun Wang, and Xiao Rui Lu. "Study on the Processing Technology of ERTI-7 Titanium Wire Based on AHP-PQ Model." Applied Mechanics and Materials 120 (October 2011): 230–34. http://dx.doi.org/10.4028/www.scientific.net/amm.120.230.

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This article determines the main factors influencing the quality of ERTi-7 titanium wire through building AHP-PQ model: processing technology. under the circumstance of instable quality of ERTi-7 titanium wire in international market. Through the selection of raw material, feeding material evenly during melting, control of melting times and the determination of surface machining process, the inhomogeneity of chemical compositions of ERTi-7 and the corresponding removal method are studied. The results show that it is easier to obtain ingot with good surface and fine structure using triple melti
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Uebler, Susanne, and Thomas Dresselhaus. "Identifying plant cell-surface receptors: combining ‘classical’ techniques with novel methods." Biochemical Society Transactions 42, no. 2 (2014): 395–400. http://dx.doi.org/10.1042/bst20130251.

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Cell–cell communication during development and reproduction in plants depends largely on a few phytohormones and many diverse classes of polymorphic secreted peptides. The peptide ligands are bound at the cell surface of target cells by their membranous interaction partners representing, in most cases, either receptor-like kinases or ion channels. Although knowledge of both the extracellular ligand and its corresponding receptor(s) is necessary to describe the downstream signalling pathway(s), to date only a few ligand–receptor pairs have been identified. Several methods, such as affinity puri
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Zhang, Cheng Liang, Chun Wang, and Lei Liu. "Practice of Slip Surface Depth of Highway Slope Determined by Synthetic Survey Method." Advanced Materials Research 671-674 (March 2013): 337–42. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.337.

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The excavation roadbed was used in K29+450~900 sections of secondary highway from Gengma to Qingshui River. The design roadbed width was 12m, and after an excavation, the inclination of side slope was between 27 to 50 °. It is Nanting River below bed and the vertical distance is 20m between them. Under actions of external load, mountain slipping and river scouring, there appears an instable phenomenon in slope. The pile board wall had inclined which is located in the central section of one side of roadbed and close to K29+900 section after construction. The inclining range was larger and the i
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Dissertations / Theses on the topic "Surface instable"

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Girard, Marie. "Sur les courbes invariantes par un difféomorphisme C1-générique symplectique d’une surface." Thesis, Avignon, 2009. http://www.theses.fr/2009AVIG0406/document.

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Au début du XXème siècle, Poincaré puis Birkhoff ont été amenés, lors de leur recherche sur le problème restreint des trois corps, à étudier les courbes invariantes par une transformation d’une surface préservant l’aire. Cinquante ans plus tard, les théorèmes KAM démontrent la persistance de courbes invariantes après perturbation en topologie de classe k plus grande ou égale à trois. On peut alors se demander ce que devient ce résultat en topologie de classe moins élevée. Par ailleurs, l’étude des dynamiques C1-génériques connaît de nombreux développements, grâce notamment au Connecting Lemma.
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Girard, Marie Anne. "Sur les courbes invariantes par un difféomorphisme C1-générique symplectique d'une surface." Phd thesis, Université d'Avignon, 2009. http://tel.archives-ouvertes.fr/tel-00461234.

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Au début du XXème siècle, Poincaré puis Birkhoff ont été amenés, lors de leur recherche sur le problème restreint des trois corps, à étudier les courbes invariantes par une transformation d'une surface préservant l'aire. Cinquante ans plus tard, les théorèmes KAM démontrent la persistance de courbes invariantes après perturbation en topologie de classe k plus grande ou égale à trois. On peut alors se demander ce que devient ce résultat en topologie de classe moins élevée. Par ailleurs, l'étude des dynamiques C1-génériques connaît de nombreux développements, grâce notamment au Connecting Lemma.
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Jakob, Ruben. "Instabile Extremalen des Shiffman-Funktionals." Bonn : Mathematisches Institut der Universität, 2003. http://catalog.hathitrust.org/api/volumes/oclc/62767545.html.

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Giral, Patrick Jean-pierre. "Utilisation des aldehydes phyténiques comme traceurs chimiques instables : application à l'étude des transferts surface-sédiments." Aix-Marseille 2, 1991. http://www.theses.fr/1991AIX22079.

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Une nouvelle source de composes isoprenoides acycliques est avancee: la photooxydation du phytol e. Elle donne plusieurs photoproduits dont les phytenals z et e. Ces derniers ne peuvent etre produits que photochimiquement (l'isomere z en particulier), et sont instables dans l'eau: leur temps de demi-vie decroit quand la temperature augmente. La recherche de ces composes dans differents sediments et materiels particulaires de mediterranee occidentale a montre leur presence dans toute la colonne d'eau. Ils ont ainsi ete proposes comme traceurs chimiques instables. Differents exemples d'utilisati
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Daucher, Dimitri Fogli Michel. "Modélisation de comportements dynamiques aléatoires complexes par une technique de linéarisation spectrale vectorielle Application au problème de la scarification des sols de surface /." Clermont-Ferrand : Université Blaise Pascal, Clermont-Ferrand 2, 2008. http://195.221.120.247/simclient/consultation/binaries/stream.asp?INSTANCE=UCFRSIM&eidmpa=DOCUMENTS_THESES_91.

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Nilforoush, Rasoul. "Anchorage in Concrete Structures : Numerical and Experimental Evaluations of Load-Carrying Capacity of Cast-in-Place Headed Anchors and Post-Installed Adhesive Anchors." Doctoral thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-66333.

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Various anchorage systems including both cast-in-place and post-installed anchors have been developed for fastening both non-structural and structural components to concrete structures. The need for increased flexibility in the design of new structures and strengthening of existing concrete structures has led to increased use of various metallic anchors in practice. Although millions of fasteners are used each year in the construction industry around the world, knowledge of the fastening technology remains poor. In a sustainable society, buildings and structures must, from time to time, be adj
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Moisan, Gabriel. "Effets des orthèses plantaires sur la biomécanique du membre inférieur chez des patients ayant une instabilité de la cheville." Thèse, 2019. http://depot-e.uqtr.ca/id/eprint/9421/1/eprint9421.pdf.

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Books on the topic "Surface instable"

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Johns, L. E. Interfacial instabily. Springer, 2002.

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J, Parzych David, and United States. National Aeronautics and Space Administration., eds. In flight measurement of steady and unsteady blade surface pressure of a single rotation large scale advanced prop-fan installed on the PTA aircraft. National Aeronautics and Space Administration, 1991.

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D, Parzych, and United States. National Aeronautics and Space Administration., eds. In flight measurement of steady and unsteady blade surface pressure of a single rotation large scale advanced prop-fan installed on the PTA aircraft. National Aeronautics and Space Administration, 1991.

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Rawlings, Hunter. Writing History Implicitly through Refined Structuring. Edited by Sara Forsdyke, Edith Foster, and Ryan Balot. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199340385.013.4.

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Thucydides self-consciously composed his history for an elite audience of reader-listeners who would pay close attention to his work, not simply hear parts of it recited once. On the surface, he organized it tightly according to rigidly heeded principles: strict focus on war and political decision-making; rigorous ordering of time and space by consecutive summers and winters, and by theaters of action. Behind these overt structures Thucydides imposed a number of implicit designs, which lead perceptive readers to see and appreciate recurring patterns in history, particularly in political leader
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Zimmermann, Eva. Prosodically Defective Morphemes and blocking. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198747321.003.0004.

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The predictions of multiple interacting Prosodically Defective Morphemes are discussed in this chapter. For one, there are instances where several morphemes in a language are lexically marked exceptions to an MLM process. This can follow, it is shown, if those morphemes are prosodically defective themselves. A very interesting instance of such an effect can be found in Aymara where a so-called ’rescuer morpheme’ exists whose only surface effect is to block an expected MLM pattern. On the other hand, there are cases where lexical allomorphy between different MLM processes can be found. It is sh
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Pfeiffer, Christian. Body in Categories 6. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198779728.003.0005.

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This chapter expands on the basic theory, which is presented in the Categories. It offers a treatment of the mereotopological properties of bodies, for instance, what belongs to them insofar as they are bodies of physical substances. Bodies are complete and perfect in virtue of being three‐dimensional. Body is prior to surfaces and lines and, because bodies are complete, there cannot be a four‐dimensional magnitude. The explanation offered is that certain topological properties are linked to and determined by the nature of the object in question. Body is a composite of the boundary and the int
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Brock, Fred V., and Scott J. Richardson. Meteorological Measurement Systems. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195134513.001.0001.

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This book treats instrumentation used in meteorological surface systems, both on the synoptic scale and the mesoscale, and the instrumentation used in upper air soundings. The text includes material on first- and second-order differential equations as applied to instrument dynamic performance, and required solutions are developed. Sensor physics are emphasized in order to explain how sensors work and to explore the strengths and weaknesses of each design type. The book is organized according to sensor type and function (temperature, humidity, and wind sensors, for example), though several unif
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Perry, Steven F., Markus Lambertz, and Anke Schmitz. Respiratory Biology of Animals. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780199238460.001.0001.

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The aim of this book is to shed light on one of the most fundamental processes of life in the various lineages of animals: respiration. It provides a certain background on the physiological side of respiration, but it clearly focuses on the morphological aspects. In general, the intention of this book is to illustrate the impressive diversity of respiratory faculties (form–function complexes) rather than serving as an encyclopaedic handbook. It takes the reader on a journey through the entire realm of animals and discusses the structures involved in gas exchange, how they work, and most import
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Anderson, E. N. Ecologies of the Heart. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195090109.001.0001.

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There is much we can learn about conservation from native peoples, says Gene Anderson. While the advanced nations of the West have failed to control overfishing, deforestation, soil erosion, pollution, and a host of other environmental problems, many traditional peoples manage their natural resources quite successfully. And if some traditional peoples mismanage the environment--the irrational value some place on rhino horn, for instance, has left this species endangered--the fact remains that most have found ways to introduce sound ecological management into their daily lives. Why have they su
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Book chapters on the topic "Surface instable"

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Poetschke, Julian, and Gerd G. Gauglitz. "Specific Attention Areas in Scar Management: Specific Scar Management Depending on Anatomical Features (Face, Hair, Breast, Hand, Joints, Foot)." In Textbook on Scar Management. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_42.

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AbstractWhile scarring in general can prove difficult to treat satisfactorily for physicians, specific locations of scarring can make this task even more difficult. Scarring on the scalp can result in alopecia which, especially in women and children, can be extremely stigmatizing. On the face and chest, scars lead to severe aesthetic impairments and commonly result in significantly reduced quality of life. If the hands, feet, or large joints are affected by severe scarring, functional problems can arise that, if most severe, put their self-reliance throughout their daily lives at risk. Therefore, finding solutions for such scarring is imperative.Finding the right technique to address a specific scar requires analysis of the problem. If scars are contracted, scar releases through local flaps (Z-plasty, W-plasty, and others) are common procedures. In widespread instable scars, large areas of tissue can be replaced by dermal substitutes and split-thickness skin grafting and full-thickness skin grafting or through the use of free tissue flaps. Additionally, fractional lasers provide the opportunity to soften scarred skin and to ameliorate the often irregular surface texture of such scars. For the treatment of problematic areas, combining different treatment options with regard to the individual requirements of the scar will commonly yield satisfactory results. Care should be taken to incorporate physiotherapy, occupational therapy, and conservative scar treatment paradigms to prevent future scarring in treated areas and to improve and conserve the reconstituted function in scarred areas.
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Hajnsek, I., G. Parrella, A. Marino, et al. "Cryosphere Applications." In Polarimetric Synthetic Aperture Radar. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56504-6_4.

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AbstractSynthetic aperture radar (SAR) provides large coverage and high resolution, and it has been proven to be sensitive to both surface and near-surface features related to accumulation, ablation, and metamorphism of snow and firn. Exploiting this sensitivity, SAR polarimetry and polarimetric interferometry found application to land ice for instance for the estimation of wave extinction (which relates to sub surface ice volume structure) and for the estimation of snow water equivalent (which relates to snow density and depth). After presenting these applications, the Chapter proceeds by reviewing applications of SAR polarimetry to sea ice for the classification of different ice types, the estimation of thickness, and the characterisation of its surface. Finally, an application to the characterisation of permafrost regions is considered. For each application, the used (model-based) decomposition and polarimetric parameters are critically described, and real data results from relevant airborne campaigns and space borne acquisitions are reported.
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Martinka, Jozef, Peter Rantuch, Tomáš Štefko, and Igor Wachter. "Electric Cables Installed in OSB Boards Surfaces and Their Temperature." In Wood & Fire Safety. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41235-7_62.

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Alers, George A., and Alfonso Manzanares. "Use of Surface Skimming SH Waves to Measure Thermal and Residual Stresses in Installed Railroad Tracks." In Review of Progress in Quantitative Nondestructive Evaluation. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5772-8_226.

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Young Kim, Hwa, and Hitoshi Ohmori. "Development of Mirror Surface Slicing Machine Installed with Grinding System Using Metallic Bond Diamond Blades and Electrolytic In-Process Dressing(ELID)." In Rapid Product Development. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6379-2_25.

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"More complex systems." In The Quantum Classical Theory, edited by Gert D. Billing. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195146196.003.0009.

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By more complex systems we mean systems containing on the order of hundreds or thousands of atoms, or molecules with less atoms but with “complicated” motions, the latter being the case when considering collisions between polyatomic molecules. In the present chapter we deal with quantum-classical methods for treating energy transfer in collisions involving polyatomic molecules, molecule surface scattering, reactions in polyatomic systems and solution. We will assume that it is possible to construct realistical potential energy surfaces for the systems. Obviously, these surfaces will be of empirical or semi-empirical nature. In some of the methods, as for instance the reaction path method, one tries to minimize the information needed on potential energy surfaces. Chemical reactions and energy transfer processes in the gas phase are often studied using just a single adiabatic Born-Oppenheimer potential energy surface. However non-adiabatic effects, that is, coupling between different electronic states, is an important aspect in chemistry. If the coupling between the various electronic states can be neglected, the “electronic” effect reduces to that of a statistical degeneracy factor ge [180].
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Jolivet, Jean-Pierre. "Surface Chemistry and Physicochemistry of Oxides." In Metal Oxide Nanostructures Chemistry. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190928117.003.0008.

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Oxide particles resulting from precipitation have at least one dimension less than a few nanometers. Therefore, as their specific area (surface-to-mass ratio) may reach several hundred square meters per gram, the behavior of these particles is closely related to their surface physical-chemical characteristics. Thus, the dispersion state of particles in solution is dependent on attractive and repulsive forces between surfaces. The balance control of these forces limits the aggregation of particles and promotes the formation of sols or gels, or, contrariwise, flocculates the particles and separates them from a suspension. The divison state of solids resulting from precipitation is ruled by forces that exert themselves onto the surface (interfacial—or surface—tension). They determine the extent of the surface area and, therefore, the particle size. Adsorption of ions or molecules within the dispersion depends on forces exerting between soluble species and the surface. These forces may be due to electrostatic charges on the surface. They may also be due to the ability of the surface cations to be coordinated by soluble species and/or the ability of surface oxygenated groups to coordinate cations from solution. The attachment of various species on the surface of oxide particles plays a major role in various fields—for instance, the transport of matter in natural or industrial waters, catalysis and corrosion phenomena, formation of stable and homogeneous dispersions. It is somewhat difficult to characterize the surface of nanometer-sized objects from structural as well as chemical standpoints. The geometry of such small particles is not easily defined with precision, and the surface often includes defects such as steps, truncations, and stacking faults. These sites are difficult to recognize but exhibit largely variable chemical reactivities. In addition, the study of the oxide– solution interface is complicated because few of its physical quantities are experimentally accessible. These quantities are treated as fitting parameters in more or less complex modelings. The current state of the art, however, allows suit­able interpretation of experimental data.
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Sotelo-Mazon, Oscar, John Henao, Astrid Lorena Giraldo-Betancur, Carlos A. Poblano-Salas, and Jorge Corona-Castuera. "Corrosion of Biomaterials." In New Challenges and Industrial Applications for Corrosion Prevention and Control. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2775-7.ch003.

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The goal of this chapter is to define concepts and methods currently used to study the corrosion behavior of biomaterials in physiological conditions. One of the interesting points of corrosion of biomaterials is that they must be designed to fulfill different physical and chemical requirements within the human body. For instance, ceramic biomaterials are designed, sometimes, to accomplish a bone growth task. Alternatively, bioceramics are also employed to provide high wear resistance to implant surfaces with the lowest corrosion activity in biological environment. Depending on the part of the human body where the biomaterial is implanted, the corrosion process and chemical interaction with body fluids can be accelerated, and consequently, the product of these reactions can have a negative effect in the health of the patients. For this reason, the chapter is also focused on explaining how to study the interaction between biomaterial surface and body fluids as well as the existing methods to prevent corrosion phenomena that could lead to affect human health.
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Mbir Bryant, Isaac, and Martha Osei-Marfo. "Innovative Designs in Household Biogas Digester in Built Neighbourhoods." In Anaerobic Digestion in Natural and Built Environments [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97210.

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Most household biogas digesters operate on continuous automatic stirring modes. Often, these digesters rely on electrical energy for their continuous operations which are often mesophilic. Rarely do manually-stirred discontinuous household biogas digesters operating on hyper-thermophilic conditions exist. This work seeks to highlight some innovative designs in a household biogas digester piloted in Terterkessim slum in the K.E.E.A. Municipality of the Central Region, Ghana. A pyramidal dome-shape biogas digester was constructed on an abandoned septic tank using blocks and concrete. The digester has a rectangular sub-surface base and a pyramidal gas holder above the surface of the soil. The digester has a two-blade manual stirrer, a ball bearing affixed at the bottom and a handle to manually mix the content of the digester. In order to heat the content of the digester to a hyper-thermophilic condition for hygienising the digestate, a solar-photovoltaic was installed on the roof of a toilet connected to the household biogas digester.
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Mitković, Mihailo, Jelena Đekić, Petar Mitković, and Milica Igić. "Research on First Mini Solar Power Plants to Produce Electric Power on the South Serbia." In Advances in Civil and Industrial Engineering. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9932-6.ch014.

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The solar radiation and energy potential in Serbia is 30% higher than in Central Europe, and the intensity of solar radiation is among the highest in Europe. Specifically suitable are the condition for usage of solar energy in southeast Serbia where the annual average of global radiation on a horizontal surface amounts to more than 4.2 kWh/m2 a day. This chapter discusses four photovoltaic solar power plants, two having been installed in the territory of the city of Leskovac and two in the Bosilegrad territory. The research is based on geographical location of solar power plants, orientation, and inclination of the panels in respect to the horizontal surface. All the processed solar power plants have the capacity 30-40 kW. The chapter is projection of two years of researching and measuring data on the initial investments in order reach profitability and investment return period. The solar power plants that have fitted angle of 33° (Fortuna) give higher production of electric power than in those panels that have angle inclination of 10° (Domit).
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Conference papers on the topic "Surface instable"

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Ahrens, Markus, Ruben Fischer, Matthias Dagen, Berend Denkena, and Tobias Ortmaier. "Active Chatter Damping in Plunge Grinding Using Magnetic Actuators." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-4111.

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In cylindrical plunge grinding with conventional grinding wheels, self-excited vibrations are one of the most limiting factors in terms of productivity and process stability. Initial vibration related to the dynamic behavior of the workpiece and machine copy on the grinding wheel, causing an increasing waviness due to uneven wear and therefore, an increasing vibration of the workpiece. These self-excited oscillations lead to many expensive true-running cycles in order to ensure high workpiece quality and process stability. In this context, we present an abrasion manipulation system for active
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Shao, Yan-Lin. "Numerical Analysis of Second-Order Mean Wave Forces by a Stabilized Higher Order Boundary Element Method." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78350.

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A stabilized Higher-Order Boundary Element Method (HOBEM) based on cubic shape functions is presented to solve the linear wave-structure interaction with the presence of steady or slowly varying velocities. The m-terms which involves second derivatives of local steady flow are difficult to calculate accurately on structure surfaces with high curvatures. They are also not integrable at the sharp corners. A formulation of the Boundary Value Problem (BVP) in a body-fixed coordinate system is thus adopted, which avoids the calculation of the m-terms. The use of body-fixed coordinate system also av
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Tian, Shuqing, Zhi Tao, Shuiting Ding, and Guoqiang Xu. "Investigation of Flow and Heat Transfer Instabilities in a Rotating Cavity With Axial Throughflow of Cooling Air." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53525.

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To study the instability of flow and heat transfer within the rotation frame, a rotating cavity with air axial throughflow was studied numerically and efforts were focused upon the flow structure evolution with the increase of Rayleigh number. The cavity can be divided into two typical zones: the Rayleigh_Benard-like convection zone occupying the upper cavity and the forced convection zone down under. These two zones interact with each other via the exchange of mass, momentum and energy. Numerical analysis indicated that, for a fixed inlet Reynolds number, there always exists a critical Raylei
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Liu, Chang, Zhaoqiang Lai, Ming Dong, and Jing Hua. "Multi-instance rendering based on dynamic differential surface propagation." In 2012 19th IEEE International Conference on Image Processing (ICIP 2012). IEEE, 2012. http://dx.doi.org/10.1109/icip.2012.6467532.

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Wang, Ruizhe, Gerard G. Medioni, and Wenyi Zhao. "Surface Oriented Traverse for robust instance detection in RGB-D." In 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2015. http://dx.doi.org/10.1109/iros.2015.7353983.

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Nakamura, Mitsuru, Yosuke Fujii, Hiroyuki Kotani, et al. "Segment-structured Diamond-like carbon films installed on driving surface of surface acoustic wave linear motor." In 2009 IEEE International Ultrasonics Symposium. IEEE, 2009. http://dx.doi.org/10.1109/ultsym.2009.5441841.

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Faidy, Claude. "Structural Integrity of Bi-Metallic Welds in Piping Fracture Testing and Analysis." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61912.

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The French field experience in stainless steel bi-metallic welds (BMW) has shown different degradations like external surface corrosion cracks close to the low alloy steel/stainless steel interface or fabrication defects in different other locations. In many countries, some degradation has been encountered in different type of bi-metallic welds: stainless steel BMW or Ni-based alloy BMW through different degradation mechanisms (corrosions). The critical crack size in different location of a BMW is a key safety issue. To-day, there is no flaw evaluation procedure for this type of components in
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Fukusako, Takeshi, and Yuta Tanogashira. "Dependence of radiation pattern on dogbonepair arrangement installed on surface wave antenna." In 2014 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2014. http://dx.doi.org/10.1109/aps.2014.6905181.

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Pilgrim, J. A., D. J. Swaffield, P. L. Lewin, and D. Payne. "Rating methods for cables installed in unventilated and partially ventilated surface troughs." In 2011 Electrical Insulation Conference (EIC) (Formerly EIC/EME). IEEE, 2011. http://dx.doi.org/10.1109/eic.2011.5996119.

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Zhai, Pengjie, Changqing Gao, Xiaowen Chi, and Bo Yang. "Research on the Knowledge Representation Method of Instance Based on Functional Surface." In 2015 International Conference on Advanced Engineering Materials and Technology. Atlantis Press, 2015. http://dx.doi.org/10.2991/icaemt-15.2015.132.

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Reports on the topic "Surface instable"

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Taylor, Oliver-Denzil, Amy Cunningham,, Robert Walker, Mihan McKenna, Kathryn Martin, and Pamela Kinnebrew. The behaviour of near-surface soils through ultrasonic near-surface inundation testing. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41826.

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Seismometers installed within the upper metre of the subsurface can experience significant variability in signal propagation and attenuation properties of observed arrivals due to meteorological events. For example, during rain events, both the time and frequency representations of observed seismic waveforms can be significantly altered, complicating potential automatic signal processing efforts. Historically, a lack of laboratory equipment to explicitly investigate the effects of active inundation on seismic wave properties in the near surface prevented recreation of the observed phenomena in
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Bigorre, Sebastien P., Benjamin Pietro, Alejandra Gubler, et al. Stratus 17 Seventeenth Setting of the Stratus Ocean Reference Station Cruise on Board RV Cabo de Hornos April 3 - 16, 2018 Valparaiso - Valparaiso, Chile. Woods Hole Oceanographic Institution, 2021. http://dx.doi.org/10.1575/1912/27245.

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The Ocean Reference Station at 20°S, 85°W under the stratus clouds west of northern Chile is being maintained to provide ongoing climate-quality records of surface meteorology, air-sea fluxes of heat, freshwater, and momentum, and of upper ocean temperature, salinity, and velocity variability. The Stratus Ocean Reference Station (ORS Stratus) is supported by the National Oceanic and Atmospheric Administration’s (NOAA) Climate Observation Program. It is recovered and redeployed annually, with past cruises that have come between October and May. This cruise was conducted on the Chilean research
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