bluuebunny/crossref_metadata_2025 huggingface dataset:
Territoires des humains et territoires des animaux : éléments de réflexions pour une géographie animale
Authors: Bortolamiol Sarah , Raymond Richard , Simon Laurent
Published: September 2017

La géographie, en abordant conjointement les espèces et leurs milieux, représente une passerelle féconde entre les sciences humaines et sociales et les sciences de la nature pour traiter du partage de territoire entre humains et non-humains, dont l’Animal est un représentant au caractère heuristique particulièrement marqué. Pour saisir les conditions du partage de territoire entre l'Homme et l'Animal, il faut comprendre le(s) territoire(s) de chacun, leurs fonctionnements, leurs interactions, leurs dynamiques, leurs adaptations respectives ainsi que leurs conjugaisons à la fois spatiales et culturelles. Cela, parce que le territoire des uns (des hommes) crée le territoire des autres (des animaux) et réciproquement. En France, des initiatives récentes ont fait émerger une géographie « humanimale » très influencée par une approche culturaliste. Ce numéro des Annales de Géographie se veut complémentaire de cette approche, en abordant la question à l’interface entre écologie et géographie. Nous retraçons la place de l’Animal en géographie afin de mieux comprendre comment il peut être modèle de nos rapports à l’environnement, surtout dans un contexte ou les territoires de rencontre entre humains et animaux se multiplient.
Les oiseaux anthropophiles : définition, typologie et conservation
Authors: Godet Laurent
Published: September 2017

Une grande partie de terres émergées et des océans est aujourd’hui transformée, exploitée et habitée par les humains. Dans ce contexte, certaines espèces d’oiseaux ont adopté une vie à leurs côtés. Cet article propose d’explorer cette « anthropophilie » sous plusieurs facettes : la définition de ce concept d’abord, puis les mécanismes ayant conduit les oiseaux à vivre aux côtés des humains, mais aussi les impacts de l’anthropisation sur les oiseaux, et, enfin, l’influence que peut avoir ce concept lorsqu’il est utilisé dans le domaine de la gestion et de la conservation de la nature. Au-delà de l’aspect plutôt réjouissant qu’il y a à observer certaines espèces d’oiseaux au sein de milieux anthropiques aussi inattendus que des clochers de cathédrales, ce qui a conduit les oiseaux à vivre aux côtés des humains diffère beaucoup d’une espèce à l’autre et cette « nouvelle vie » est loin de leur être toujours favorable en matière de succès reproducteur et de taux de survie. L’anthropophilie de quelques espèces ne doit en effet pas masquer les impacts généralement négatifs de l’anthropisation des milieux sur l’avifaune à de larges échelles spatiales, au point que nous soulignons l’intérêt urgent qu’il y a à conserver précisément des milieux et espèces qui ne sont pas associés aux humains, qui sont, eux, de plus en plus rares.
Les séquestres d’entreprises en Haute-Alsace pendant la Grande Guerre : quels objectifs ?
Authors: Risacher Bertrand
Published: September 2017

À l’évidence, l’Alsace n’est pas un « pays allemand » comme les autres. Dès le début des hostilités, une ordonnance permet de placer sous administration forcée les entreprises jugées trop françaises. Quels étaient les objectifs de ces « séquestres » ? S’agit-il d’exploiter les entreprises séquestrées en « bon père de famille » au profit de l’économie de guerre ou au contraire d’être un prédateur uniquement intéressé par la mainmise sur des actifs ? En réalité, loin d’appliquer une doctrine, les Allemands ont dû s’adapter aux circonstances.
La contribution extraordinaire sur les bénéfices de guerre, une source pour appréhender l’inflation
Authors: Zannis Étienne
Published: September 2017

La contribution extraordinaire sur les bénéfices de guerre, créée par la loi du 1er juillet 1916, vise à taxer les bénéfices supplémentaires réalisés pendant le conflit grâce aux commandes militaires. Elle est la première à expérimenter le formulaire de déclaration rempli par le contribuable lui-même. Sa faible utilisation comme source historique peut s’expliquer par les différents facteurs qui en complexifient l’analyse, en particulier l’impact de l’inflation.
Ressusciter l’empire : la quatrième dynastie et le philtre du passé
Authors: Glikman Juliette
Published: September 2017

Napoléon III n’inaugure pas un « second Empire », mais prétend restaurer le régime impérial, dont la mémoire aurait été conservée intacte. Le plébiscite reconnaissant le système héréditaire, en 1804, n’ayant jamais été formellement renié par les électeurs, les règnes successifs, depuis 1815, sont ravalés au rang d’usurpation. Les millions de bulletins émis lors des plébiscites de 1851 et 1852 sont censés consacrer la résurrection d’un même Empire, qui surgit inchangé après une éclipse d’un demi-siècle. Renouant le fil de la tradition monarchique, l’Empire, consacré par le vote universel, entretient un rapport original au passage du temps, s’offrant en Renaissance susceptible de renouer avec un âge d’or mythique.
Le Second Empire, une « Belle Époque » ?
Authors: Kalifa Dominique
Published: September 2017

Cet article interroge les représentations croisées du « Second Empire » et de la « Belle Époque ». Par-delà les contrastes et les antagonismes politiques qui les séparent, les deux séquences ont été décrites comme des périodes partageant de profonds traits structurels : un même décor, marqué par la primauté du « nouveau Paris », un sentiment de prospérité et de paix intérieure, l’éclat de la vie mondaine, l’essor des spectacles et des loisirs, le faste des Expositions universelles, une atmosphère de fête, de réjouissances et de sexualité permissive. Même si ces traits oublient une large par des « réalités » de ces périodes, ils ont contribué à doter d’une « identité historique » la France contemporaine. C’est pourquoi penser les représentations, les regards ou les noms que les périodes historiques donnent à celles qui les ont précédées me semble participer pleinement de « l’opération historiographique ».
Égalité des relations intimes et Soi(s) transparent(s) : reconnaissance juridique du mariage transgenre à Hong Kong
Authors: Chiang Howard , Bras Pierre , Kail Michel
Published: September 2017

En mai 2013, le Tribunal d’appel de Hong Kong a décidé d’autoriser les transsexuel∙le∙s à se marier selon leur genre acquis par réattribution plutôt que selon leur sexe de naissance. Ce jugement qui a fait date, W v the Registrar of marriages , a été considéré par beaucoup comme un événement déterminant pour le mouvement en faveur des droits LGBT dans les communautés sinophones. En examinant minutieusement à la fois les déclarations majoritaires et dissidentes, une analyse critique des paramètres du principe queer dans cette décision montre que l’encadrement libéral des droits au mariage des transgenres engendre ce que j’appelle « les résidus polis de l’hétéronormativité », rendant possible l’avancée de la cause queer en perpétuant certaines formes implicites d’oppression de genre et d’oppression sexuelle. Plus encore, ces résidus – cachés en étant intégrés dans une perspective plus large de progrès politique – dépendent d’une rhétorique de citationalité impériale qui font des superpuissances globales, spécialement la Grande-Bretagne et la Chine, des cadres normatifs de l’autorisation légale.
Consommations de substances psycho-actives en milieu carcéral : étude qualitative rétrospective
Authors: Fernandes Pereira Patrice , Simon Catherine
Published: September 2017

La population carcérale est en moins bonne santé que la population générale et présente des comorbidités plus fréquentes, notamment addictives. L’enquête Drees de 2003 montrait que 33 % des entrants en prison déclaraient une utilisation prolongée et régulière de drogues illicites au cours des 12 mois précédant l’incarcération. Nous avons souhaité décrire la réalité des consommations de substances psycho-actives et pratiques à risques associées en détention. Nous avons ainsi mené 9 entretiens semi-dirigés qualitatifs auprès de personnes usagères de drogues ayant connu une incarcération à la maison d’arrêt de Brest. Nous avons mis en évidence la poursuite de consommations de substances licites (tabac, médicaments) et illicites (cannabis, héroïne, cocaïne) en détention avec des pratiques à risques associées (sniff, injection...). Il ressortait également en incarcération une omniprésence des sollicitations et du trafic avec des stratégies bien identifiées comme le troc ou l’échange. Les personnes interrogées ont aussi proposé plusieurs axes possibles d’amélioration de la prise en charge des usagers de drogues en prison, basés sur la diversification des soins, dont un meilleur accès à la réduction des risques, et l’autonomie des patients.
Co-Creating a Movement
Authors: Jones-Schenk Jan
Published: September 2017

In 2011, the Robert Wood Johnson Foundation funded a national program office to support nurses' academic progression toward the goal of Bachelor of Science in Nursing preparation of 80% of the RN population by 2020. A new initiative, the National Education Progression in Nursing Collaborative, seeks to create a movement to sustain the momentum of educational progression for nurses.

J Contin Educ Nurs.
2017;48(10):442–444.
Giving and Receiving Feedback: Part II
Authors: Kowalski Karren
Published: September 2017

In part one of this article, giving effective feedback was addressed. In part two of this article, helpful strategies for receiving feedback, something most have never been taught and many have not even considered, are explored.

J Contin Educ Nurs.
2017;48(10):445–446.
Development, Implementation, and Evaluation of a Certified Registered Nurse Anesthetist Preceptorship–Mentorship Program
Authors: Scott-Herring Mary , Singh Sarabdeep
Published: September 2017

Little evidence exists to support the effects of a preceptor–mentor program for orienting newly hired certified registered nurse anesthetists (CRNAs). The literature suggests that participation in a preceptorship–mentorship program will increase the satisfaction, confidence, and comfort of both preceptors and newly hired orientees. The purpose of this project was to determine the effects of these outcomes. This program was developed based on best evidence and implemented as a quality improvement project. Three sessions were held to educate preceptors (
N
= 12) in the following areas: communication skills, providing constructive feedback, and assessing learner's styles and needs. The results suggested that participation significantly increased CRNA preceptor satisfaction and comfort in the precepting experience. The newly hired CRNAs answered that they were mostly or very much satisfied and confident at the completion of their orientation period. This program can be expanded to include additional preceptors and be sustained with future new hires.

J Contin Educ Nurs.
2017;48(10):464–473.
3DBody Software Experimental Platform for Course of Sports Anatomy
Authors: Ren Yujia , Jiang Xia , Tang Siyuan
Published: September 2017

Sports anatomy is one of the important basic subjects of sports colleges and universities. As multimedia network technology increasingly matures and is popularized, it becomes an irresistible trend to transform the traditional teaching mode of sports anatomy into multimedia network teaching mode. Thus, a new-type experimental platform based on action-orientated approach and provided with MVC framework and 3DBody experimental software is put forward in this paper, and it is analyzed and interpreted from the aspects of curriculum design principle and function module of the experimental platform, teaching design model of the experimental platform, and teaching and learning methods. These findings indicate the new-type experimental platform designed in this paper is highly spoken of by students for helping improve students’ practical skill and ability and arouse students’ subjective initiative in learning.
Construction of Maker Multimedia Technology for the Course of Sports Marketing
Authors: Niu Ben , Wang Fatao , Qi Aili
Published: September 2017

Maker education is a new-type educational mode aiming of training and improving students’ innovation ability and transforming students’ passive learning into initiative exploration. So far, few researches have been made on the field of maker education for the course of Sports Marketing, and the relevant multimedia technology also has not been completely developed, which poses an undue barrier to the launch of maker education. In this paper, maker education multimedia technology for the course of Sports Marketing is developed based on Blockly frame, applying the theory related to maker education, namely the theory of successful intelligence, in the course of Sports Marketing for the first time, and design the maker education multimedia technology from both function design and process design. Finally, to check the effect of the multimedia technology developed in this paper, we use the multimedia technology in the “sports marketing” course for comparison and verification. Results demonstrate the average scores and the proportion of high scores of the class for which the maker education multimedia platform was implemented in the teaching process of Sports Marketing are superior to that of the class for which the maker education multimedia platform was not implemented. These findings indicate that the technology is greatly helpful to improve students’ innovation ability, and is of high promotional value and broad application prospect.
Design of Moodle-based Podcast Teaching Platform for the Course of Aerobic Gymnastics
Authors: Zhou Yingbao
Published: September 2017

A Moodle-based podcast teaching platform is designed for the course of aerobic gymnastics. Although abundant teaching tools and resources are available on the Moodle teaching platform, it doesn’t support playing video and audio. Thus, podcast module is added. Podcast, as an innovative medium form, is convenient for playing video and audio. The key to learning aerobic gymnastics is to master the essentials of movements. We adopted the patented technology of a method and device of real-time animation generation in video in teaching, to help learners comprehend movements of aerobic gymnastics and raise learning efficiency. We also performed contrast experiment to check the effect of the teaching platform in teaching practice. The results show that the experimental group performed better than the control group in respect of both routine and movement, and demonstration capability. The platform is largely helpful for learners to comprehend the movements and raise learning efficiency. Thus, these findings indicate the Moodle-based podcast teaching platform has a good application prospect in physical education.
Mathematical Model of Hot Rolling Temperature Parameters
Authors: Sosedkova M.A. , Radionova L.V. , Lisovskaya T.A.
Published: September 2017

We herein present a mathematical model of hot rolling temperature parameters that factors in how the strip temperature changes in the rolling stand and in the inter-stand gap as well as when metal is transported along the mill train. It factors in the temperature losses caused by thermal radiation and the convective transfer of heat from and to the environment, occurring in the inter-stand gap; temperature losses are also caused by the contact heat transfer from and to the rollers as well as by the heating of the strip in the plastic deformation site. This paper presents the results of using this model to make calculations for a wide-strip hot rolling mill. It illustrates how the model could be used in the algorithm for building a state-of-the-art virtual training simulator.
Polymetallic Ore Concentration Middlings Nitric Acid Leaching Kinetics
Authors: Rogozhnikov D.A. , Kolmachikhin B.V.
Published: September 2017

The purpose of this work is the kinetic evaluation of reactions occurring during nitric acid leaching of pollymetallic sulfide middlings, for the most complete translation of copper, zinc and sulfur in solution and concentration of precious metals in residue. Methodology is pollymetallic sulfide middlings nitric acid leaching kinetics were studied using mathematical methods such as the experimental data numerical differentiation. Relevance/value is the main sulfide minerals kinetic characteristics were obtained for the studied materials, including the rate of the process, order of reaction, the rate constant for the forward and reverse reaction. Findings are the rate of the process is limited by kinetics. The calculated values of kinetic parameters showed that the process kinetics are influenced by such factors as the nature of leachable sulfide, nitric acid concentration, the surface area of the solid sulfide, the system approaches equilibrium at saturation of the liquid phase reaction products.
Relationship between Dendritic Structure of Grey Cast Iron and Mechanical Properties of Castings
Authors: Baron A. , Palatkina L.V. , Gonik I.L.
Published: September 2017

The relationship between tensile strength σВ and Brinell hardness HB of different grey cast irons was investigated. It was found that at the same hardness values the tensile strength of different specimens may differ by almost two times. It was shown that the mentioned above tensile strength scatter is caused by the different volume fraction of dendritic crystals of a primary austenite fdc. The quantitative relationships between σB and fdc for in situ tensile strength assessment were established. The comparison of σB values calculated through Brinell hardness HB and through volume fraction of dendritic crystals fdc shows that the latter method developed in the present paper provides more reliable results.
Research on Metal Forming in Pipe Ends Upsetting Process
Authors: Erpalov M.V. , Bogatov Aleksandr Aleksandrovich
Published: September 2017

Oil country tubular goods (OCTG) are widely used in oil and gas industry. In order to increase joint efficiency of the oil country tubular goods, the process for upsetting their ends is applied. However, the weakness of this upsetting technology is a frequent defect creation on the inner surface of the final product. These imperfections are surface breakings that reduce the effective pipe wall thickness; they are detected close to the upset ends of the pipe. Computer simulation and full-scale experiment were used to study this defect nucleation. According to this research, the occurrence of defects is correlated with average pipe wall thickness, non-uniform wall thickness of the blank, heating mode and friction conditions. The results of full-scale experiment confirm the main conclusions made in the course of the finite element simulation. The research results define the interdependence of actual size of the blank and the operating tool calibration.
Study of the Hot Top Performance with Various Heat Insulators
Authors: Rutskii D.V. , Zyuban N.A. , Gamanyuk S.B.
Published: September 2017

The paper contains a thermal performance calculation which proves that the basic items of heat loss include heat losses spent heating the hot top casing and lining. If thermal insulation is used, losses through the metal mirror do not exceed 3.5%. It is shown that in order to improve hot top efficiency it is required to minimize losses spent on heating the lining and the hot top casing; consequently, the amount of the heat transferred to the solidifying ingot can be increased. The assessment of the performance of the hot top with various heat insulators proves that the most efficient one is the untapered (straight) hot top insulated with the MKPB-340 inserts: in this case the quantity of heat transferred to the chill amounts to 70% of the overall value. An alteration of the hot top insulation type and geometry makes it possible to improve hot top thermal performance. As a result, the heat center of the solidifying ingot shifts to the hot top. Consequently, the shrinkage of solidifying steel is efficiently compensated, which decreases the physical and chemical heterogeneity of the billets produced and improves the ingot-to-product yield.
Lamb Wave Analysis for Plate of Weak Ferromagnetic YFeO3
Authors: Adamova M.E. , Zhukov E.A.
Published: September 2017

The present work presents the analysis of Lamb waves in weak easy-axis ferromagnetic yttrium orthoferrite YFeO3, where the frequency and velocities spectrums were calculated based on dispersion equations. The specialties in calculated Lamb wave spectrum show the possibility of wave generation by an external source. The influence of the sample thickness on the characteristics of wave propagation in a plate is investigated.
Evolution of BrOCS 5-5-5 Alloy Microstructure and Mechanical Parameters under Intensive Plastic Deformation Conditions
Authors: Radchenko S.J. , Dorokhov D.O. , Gryadunov I.M.
Published: September 2017

The complex approach to the microstructure and microhardness parameter of BrOCS 5-5-5 changing dependences out of hardening degree are presented. The acquired results correlate with the earlier research, but give us new knowledge about the microstructure and microhardness parameter value changes depending of the deformation degree. That allows predetermining the accumulated deformation degree at bush type hardening process, for example – plain bearing liners or structural elements in the form of axial symmetry tybes. The prediction of the microstructure and mechanical parameters – microhardness parameter value in dependence of accumulated degree in particular becomes possible. The microstructure research carried out allows predetermining the necessary deformation degree for the studied material for its further application.
Thermal Modification of Wood in Production of Finishing Materials
Authors: Shaikhutdinova Aigul Ravilevna , Safin Ruslan R. , Nazipova Farida V.
Published: September 2017

The ways of wood thermal treatment applied in Russia and abroad and the scopes of thermo wood as a construction material are considered in the article. The technology of thermal treatment of high moisture wood with moisture content of 60% in the environment of saturated steam without preliminary drying, developed by authors, is described. The results of the research of the color scale change of oak wood depending on the processing temperature and treatment duration, and also the influence of thermal treatment on the main mechanical properties of thermally modified wood as the finishing material, in particular on the Ra and Rz roughness parameters are presented. As a result of the conducted research the improvement of final physic mechanical and esthetic characteristics of the material after the processing of wood under this technology is proven.
Behavior of Micro-Alloyed Steel at Thermal Treatment
Authors: Shveyova T.V. , Pesin A.M. , Pustovoytov D.O.
Published: September 2017

A tendency towards the growth of grain when heating is investigated and the stability against tempering alloyed and microalloyed steel. The advantage steel, microalloyed by vanadium and nitrogen is shown and their application for heavy-duty vehicle parts is recommended. The possibility of residual forging heat of forgings realization for their heat treatment is established.
Effect of Aggressive Components of the Marine Environment the Protective Properties of the Textile Materials
Authors: Cherunova I. , Lesnikova Tatyana , Korinteli A.
Published: September 2017

The article provides the details on the influence of marine environment on textile materials. It justifies the aggressive components of marine environment in contact with clothing surface: sea salt and oil. Sea salt is an integral part of sea water and accumulates in the structure of clothing. Oil becomes a part of sea water in contingency situations at offshore oil and oil products production and transportation facilities. This causes a variation of the properties of textile materials that depend on the concentration of aggressive components in the structure of textile materials. Active concentration of aggressive components in the textile is defined based on its liquid absorption capacity. The article establishes the peculiarities of volume variation for different textile fibers interfacing with liquids. It identifies the structure of sea salt and chemical composition of oil that cause a variation of the properties of textile in contact with them. It was established that the presence of sea salt in humid environment contacting with the surface of special cotton based fabric causes reduction of capillarity in all material samples. It was established that the packages of materials based on fabrics with mixed fibers have crude oil permeation less than cotton surfaces of clothing. Meanwhile, use of thermal insulation, like Hollofiber together with such materials, reduces the level of clothing saturation with subject liquids. The article presents experimentally obtained data on sea water and oil permeation into special clothing materials.
Investigation of Heat Resistance of Al-Ni Layered Coating
Authors: Shmorgun Victor Georgievich , Bogdanov A.I. , Taube A.O. , Novikov Roman Evgenyevich
Published: September 2017

The effect of isothermal annealing at 1100°C on the kinetics of phase transitions in the coatings system Ni-Al, obtained by the complex technology, is studied. The cyclic heat resistance of the coating is investigated at 1100°C.
The Wear Resistance of Mottled Iron with Stabilized Carbide Phase
Authors: Davydov S.V. , Gorlenko A.O.
Published: September 2017

There is investigated the wear resistance of mottled irons with stabilized carbide phase, obtained by alloying iron with copper, chromium and sulfur. It is shown that during heat treatment the outer shell of the carbide phase inclusions, destabilized with copper, dissolves, leaving a core stabilized with chromium. Carbon from the carbide phase dissolution coats the surface of manganese sulphide inclusions, forming additional wear-resistant structural component of mottled iron. The resulting structures can be attributed to compositional structures, which morphology and phase composition can be controlled by alloying and heat treatment.
Technology of Wood Waste Processing to Obtain Construction Material
Authors: Safin R.G. , Sattarova Z.G. , Khairullina E.R.
Published: September 2017

The technology of wood waste processing to obtain a construction material is presented. Thermo-modified ground bark as a filler and gypsum as a binder were used in the composite. The experimental studies to determine the strength and water absorption of the composite material of the filler concentration and the fractional composition were presented. The analysis of the results was conducted.
Properties of Elastomeric Adhesive Composition Based on Chlorinated Isobutylene Isoprene Rubber Obtained by Mechanochemical Halide Modification
Authors: Sukhareva K.V. , Mikhailov I.A. , Mastalygina E.E.
Published: September 2017

This paper is devoted to the main characteristics of adhesive composites based on chlorinated isobutylene isoprene rubber with different content of chlorine obtained by the novel technology of mechanochemical halide modification of rubbers based on mechanical initiating of the combination reaction of halide in liquid phase. In the work the basic properties characterizing adhesive, protective and paint coatings have been studied with the main focus on dependence of the materials properties on chlorine content in chlorinated isobutylene isoprene rubber used as polymer basis of adhesive compositions under investigation. Based on the study results of the technological properties of elastomeric adhesive composition, the optimal adhesive composition has been recommended.
Calculation of Joint Plastic Deformation to Form Metal Compound in Cold Condition
Authors: Shaparev A.V. , Savin I.A.
Published: September 2017

The author of the paper proposed a model of joint plastic deformation of two metals in cold state. That model is based on a well-known "oxide" hypothesis. It was demonstrated experimentally that steel/ brass close contact occurs as early as at the degree of deformation 0.15–0.20, but this level of deformation is insufficient to form a compound. A close contact of metals is a necessary but insufficient condition for compounding metals in cold state. The sufficient condition for two metals compounding is the degree of deformation more than 0.50. At this deformation level juvenile metal surfaces begin entering into contact by forming adhesion bridges.
Carbonic and Mineral Adsorbent, Produced of Slurry Withdrawal of Oil-Extracting Production
Authors: Starostina I.V. , Stolyarov D.V. , Kosukhin M.M.
Published: September 2017

The article considers the use of withdrawal of oil-extracting production as the initial material for receiving the adsorbent. The withdrawal is the diatomaceous earth (kieselguhr), which represents waste filtering material, formed as a result of cleaning vegetable oils. It also represents the slime, impregnated with vegetable oil and vegetable waxes (their content varies from 15 up to 70%). Now the fulfilled filtering materials are not utilized but they are taken out to dumps, that leads to environmental pollution and irrevocable losses of valuable components. The carbonic and mineral adsorbent is received as a result of carbonization of waste kieselguhr slime. The influence of carbonization temperature on physico-mechanical and sorbtion properties of the received sorbent is also shown. The valuation of sorbtion properties of carbonic and mineral adsorbent has shown that the maximum sorbtion capacity as on blue methylene is 2,2 mg/g, as on ions of Ni (II) is 17 mg/g, possesses carbonic and mineral adsorbent (CMA), received at temperature of 470 °C.
Combined Influence of Opoka and Slag on Cement Properties in Presence of Superplasticizer
Authors: Korovkin M.O. , Eroshkina N.A.
Published: September 2017

The influence of the milled opoka of Penza field and blast-furnace slag with the polycarboxylate superplasticizer present on the properties of mortar component of the concrete based on blended cement, including Portland cement, fly ash, blast-furnace slag, silica fume, and microquartz has been investigated. Some equations for the dependency of water requirement of the cement mortar component, as well as of its strength with various values of time on proportion of superplasticizer and components of blended binder have been developed. It has been shown that the introduction of opoka increases the water requirement of the mix, insignificantly decreasing the strength, when proportioned up to 15%. The detrimental effect of opoka on the strength considerably reduces with higher superplasticizer content and lower water-to-cement ratio.
Extension of Raw Material Base for Ceramic Building Bricks Production
Authors: Lupandina N.S. , Kiryushina N.Yu. , Porozhnyuk E.V.
Published: September 2017

The purpose of the paper is to determine the possibility of using water purification slime as a raw material in the production of ceramic building brick. The spectrophotometric, power dispersing, atomic and absorption methods of research and biotesting were used. The possibility of using the water purifying slime as a pore-forming component is proved by the production of ceramsite brick. The optimum amount of the component of water purification slime to the main raw materials has been established. The small level of heavy metals leaching from the received construction material has been experimentally proved. The article can be of interest to the experts in the field of creating new construction materials using the production wastes and sewage purifying.
Improving Masonry and Protective Paints Quality
Authors: Vyboishchik A.V. , Kostiunina I.L.
Published: September 2017

The environment, along with other reasons, is a key factor influencing the living conditions of urban population in Russia today. One of the main drawbacks restraining the process of aesthetic improvement of modern Russian cities is the unsatisfactory protection of buildings from the atmospheric phenomena. Industrial waste, however, is another reason preventing long-lasting decoration of urban buildings. The article presents an overview of the composition and physical properties of masonry paints used in Chelyabinsk Region. The traditional technology of obtaining coatings, e.g. liquid glass, is studied, the drawbacks of this technology are examined, the new applications are offered. The influence of additives on the basic properties of masonry paints, viz. weather resistance, viscosity, hardness, cost, is considered. The application of new technologies utilizing industrial waste can solve the above-stated problem, which also will, along with improving the basic physical and chemical properties, result in reducing the cost and increasing the hardness of masonry paints.
Functional Nanostructured Tribotechnical Materials
Authors: Leont’ev L.B. , Shapkin N.P. , Makarov V.N.
Published: September 2017

The paper describes the tribotechnical properties of thin-film coatings obtained by the tribotechnical modification of 40X grade steel with different organic and inorganic tribotechnical materials (natural inorganic and artificial polymers), as well as with composite materials based on vermiculite. Comparative tribotechnical investigations revealed that composites possess better tribotechnical properties than single-component materials. The most promising materials for the tribotechnical modification of steel friction surfaces are vermiculite-based nanostructured composites that provide minimal friction coefficient and high wear resistance under the conditions of boundary friction. The tribotechnical properties of polymagnesiumphenylsiloxane are a little worse than that of the materials based on vermiculite. Polymagnesiumphenylsiloxane and nanostructured composites based on vermiculite can be used as additives to motor oils and solid lubricants, as well as for the modification of friction surfaces during manufacturing or reconditioning of machine parts to increase their durability.
Study of Physical and Mechanical Properties of Non-Polar Rubber-Based Sealants Depending on Filler Type and Volume
Authors: Cherkasov V.D. , Yurkin Yuriy V. , Avdonin V.V.
Published: September 2017

Non-curing sealants have a complex composition consisting of a mixture of polymers, plasticizers, extenders, adhesive additives, various special purpose additives (pigments, biocides, fire-retardants), and therefore the optimization of their compositions to improve the physical and mechanical and technological characteristics is rather complicated. This article demonstrates the experimental results of physical and mechanical properties such as penetration, strength, density, adhesion to metal and concrete, water absorption, and elongation of sealants on the basis of butyl-rubber and EPDM, depending on filler type and volume. The basic regularities of the nature influence and fillers on the physical and mechanical and technological characteristics of sealants are revealed. We’ve identified the ultimate proportion of fillers when the sealants meet the required specifications. The research results are the recommendations on the selection and optimization of the filler content of the sealant composition.
Improvement of Environmental Safety due to Utilization of Industrial Wastes in Refractory Concretes Production
Authors: Perfilov V.A. , Oreshkin Dmitry V.
Published: September 2017

The article suggests recycling aluminium and pipe industry wastes in the production of refractory materials. New compositions of light fibrous concrete are developed, compared to the known structures they have improved physical and mechanical properties and a low cost. This is achieved due to the lack of heat treatment and utilization of industrial waste. Aluminous slag and sulphate sludge are stored in open landfills. Recycling of slag and sludge helps to improve the ecological state of environment. This article describes the chemical composition of the waste and suggests the optimal ratio of the mixture components. The properties of refractory fibrous concretes were defined at hardening of mixture in the natural conditions in the absence of heat treatment.
Using Mathematical Modeling to Develop Electrode Coating Composition for Stable Arcing and Arc Restarting
Authors: Letyagin Igor Yu.
Published: September 2017

This paper proposes a method to optimize electrode coating using the desirability function for such stick electrode quality assessment criteria as stable arcing while ensuring sustainable restarting of the arc. Based on the mathematical apparatus of the experiment design theory, we derived a regression equation that describes the joint effect of electrode coating components on the arcing and arc restarting stability when using coated electrodes for welding. We have also analyzed the mathematical apparatus for experimental data processing for optimizing based on a generalized criterion. This method enables an assessment of responses that differ in their physical meaning and dimension. This experience helped optimize the electrode coating.
Influence of Gas Shielding Method in Welding with Consumable Electrode on Heat Distribution in a Welded Product
Authors: Chinakhov Dmitry A. , Grigorieva E.G. , Mayorova E.I.
Published: September 2017

The author analyses the changes of heat distribution in welded joints of 30HGSA steel depending on different types of gas shielding. It is determined that thermal cycles in the weld metal and in the heat-affected zone differ depending on the type of gas shielding. In the range of 760...790°С the temperatures level and a hotter metal of the weld becomes less hot in comparison with the metal of the heat-affected zone with any type of gas shielding. The rate of temperature saturation in the welded parts is a little higher with double-jet gas shielding, levelling of the temperatures between the weld metal and the heat-affected metal occurs 1...1.4 seconds earlier than with conventional single-jet gas shielding.
Effect of Heat Treatment on Change Concentration of Powders in Gradient Material
Authors: Anikeev A.N. , Chumanov I.V.
Published: September 2017

This article is devoted to the research into the influence of different heat treatment types on the concentration of dispersed refractory particles in amount of dispersion-strengthened metal materials. The heat treatments of metal materials were performed in several modes with different curing temperatures and cooling environments. Then, particles have been counted as the analytical system "Thixomet". The obtained data have been compared to calculations. Results of the done work are presented in the conclusion.
Numerical Analysis of Stress-Strain State and Crack Propagation in Welded Samples
Authors: Bisong M.S. , Sivtsev P.V. , Lepov V.V.
Published: September 2017

The numerical analysis of stress-strain state of low-alloyed welded steel samples test has been considered. The mechanical heterogeneity has been estimated by the micro hardness test. The stress-strain state analysis is based on the models of linear elasticity, which are described by Lame equations for displacement. In this case the samples are considered as perfect welded samples without any welding defects. The discretization of the system of equations is done through the finite element method, and the numerical realization of the method is performed on collection of free software FEniCS. The defects influence has been estimated by stochastic modelling of viscous crack growth. The data for crack size in weld and heat affected zone was obtain from microscopic observation, and for mechanical properties from microhardness testing. The result obtained shows that, the distribution of displacement in all samples are almost the same. Between the welded zone, the heat affected zone and the external elliptic zone, the Von Mizes stress is almost the same in all three samples. Concerning the crack growth, the velocity of it propagation in welded zone is higher as much again than that in the heat affected zone. This research is beneficial to welders, modellers of structures, researches as a whole.
Capillary-Porous Effects in Concrete during Ice Abrasion
Authors: Kim L.V. , Shaly E.E.
Published: September 2017

The ice drift velocities up to 2 m/s in the Sea of Okhotsk can cause severe abrasion due to mechanical contact with offshore concrete structures. The abrasion process of concrete includes cement paste and aggregate particles removed from the concrete surface. Testing procedures in the ice abrasion laboratory of Far Eastern Federal University coupled to a numerical simulation model of ice sheet-structure contact are described. The existing models account only for mechanical ice-concrete interaction, ignoring water flow into the concrete surface due to hydraulic pressure, substructure of ice feature on ice-structures interface. Theoretical and experimental research comprises the study of physical and mechanical as well as hydraulic porous processes resulting in the gradual structure refusal which is linked with emerging significant pulsating pressures in the contact layer of interacting work material. The obtained results will contribute to the development of effective protective means against ice abrasion.
Temperature and Humidity Dependence on Strength of High Performance Concrete
Authors: Slavcheva G.S. , Bekker A.T.
Published: September 2017

The paper presents the results of investigation humidity and temperature influence on concrete of strength grades from B50 to B90. Dry and wet HPC specimens were exposed to different temperatures –60, -40,-20, 0,+20,+40,+60°C. The system parameters of the concrete structure were also examined: volume, surface area and extra finite difference energy of the solid phase, pore size. The results show that the effect of reduction of strength (Rebinder’s effect) of HPC depends on these parameters of the concrete structure. The maximum reduction in strength is fixed for concrete of В80—В90 grades, whose structure is notable for more developed interface between grain and phase boundaries and prevalence of nanopores in its structure.
Refractory Core-Shell Powders for Additive Industries
Authors: Bogdanov Sergey P. , Garshin A.P.
Published: September 2017

The finished products obtained when the surfaces of powders of refractory materials (diamond, boron nitride, silicon carbide, tungsten carbide, tungsten) were coated with thin films by the method of iodide transport are presented. The developed method enables to obtain powder composite materials of core-shell type that have surface thickness varying in the range from 1 nm to several micrometers. From the powders modified by the films of metals and thier compounds composite materials were developed, their physical and mechanical characteristics were studied. The characteristics turned out to be substantially higher in comparison to materials sintered from the same powders but without coating. The probable fields of use of the composites in question were determined.
Modified Geomembrane Compositions for Hydraulic Structure Impervious Coatings
Authors: Kosichenko Yu.M. , Baev O.A.
Published: September 2017

The article reviews the results of studying modified geomembrane compositions for impervious surfaces, including polymeric geomembrane of fresh raw materials and geomembrane of recycled materials reinforced with protective “Dornit” type geotextile to prevent damage. The work suggests criteria of technical efficiency and reliability of geomembrane compositions, estimated correlations to define those indicators and presents theoretical approaches to assess the operational reliability of geomembrane compositions based on reliability theory methods.
New 3D Cross-Linked Copolymers with Variable Mechanical Properties and High Durability
Authors: Kapralova V.M. , Karov D.D. , Slutsker A.I.
Published: September 2017

The characteristics of 3D cross-linking, mechanical properties and biocompatibility of new copolymers of polyetherurethane and polysiloxane are presented. New copolymers are shown to be highly durable, strong and stable, thus being prospective for various applications including biomedical implants.
Research of Processes of Products Fabrication by Self-Propagating High-Temperature Synthesis (SHS) Method
Authors: Kotov S.A. , Gushchina L.B. , Livintsova M.G.
Published: September 2017

In this paper, the processes of forming the samples of powder materials based on the titanium – nickel and nickel – aluminium systems were investigated. The possibility of conducting self-propagating high-temperature synthesis (SHS) in the nickel – aluminium system without protective atmosphere is shown. The initial heating temperature of the starting mixture is the main factor determining the flow of this process. Its growth leads to an increase of the synthesis speed. The number of the oxides decreases at the same time. Thermodynamic calculations of the combustion reactions were performed under different conditions. Phase analysis has shown the presence of the intermetallic compounds, which correspond to the phase diagram of the nickel – aluminium system. Thermodynamic calculations confirmed the assumption of preferential oxidation of metallic sodium when it was added to the mixture of powders in the titanium – nickel system. Technological features of obtaining products of various functional purposes are justified. The performed research confirms the effectiveness and promising use of self-propagating high-temperature synthesis for the products fabrication by powder metallurgy methods.
Beta-Phase Decomposition Sequence during Continuous Cooling of High-Temperature Titanium Alloy
Authors: Gadeev D.V. , Demakov Sergey , Vodolazskiy F.V.
Published: September 2017

The diagrams of continuous cooling transformation (CCT) of β-phase decomposition for hot-rolled VT8M titanium alloy were obtained using the differential thermal analysis, scanning electron microscopy, and X-Ray diffraction (XRD) analysis for heating temperatures from 880 to 960 °C. The decomposition process was found to occur with several distinguishable stages. The transformation begins from high-temperature stage of the growing of primary alpha precipitates. At lower temperatures, it is followed by the medium-temperature stage accompanied by precipitation of grain-boundary alpha and the formation of coarse secondary alpha-lamellae. The low-temperature stage has been established to be characterized by the formation of dispersed alpha-platelets within beta-grains.
Composite Material for Railroad Tie
Authors: Stepanov V.V. , Saldaev V.A. , Tsvetkov V.E.
Published: September 2017

The article presents the results of research in the field of processing wood and thermopolymer waste to produce new high-performance compounds, which may be used in the production of composite railroad ties.
Designing Metamaterial with Arc-Structure for Wide Broad Vibration Isolating
Authors: Valeev A.
Published: September 2017

The paper is devoted to the idea of metamaterials with quasi-zero stiffness for vibration isolation. Metametarials may provide special and unique properties of materials. In this area it is possible to use the principles of systems with quasi-zero stiffness. Such nonlinear deformation of material provides low stiffness at a certain point. Hence low natural frequency and high efficiency of vibration isolation can be obtained. An analytical study was done. Computer modeling shows a big enough margin of safety and also proves the existence of force characteristic with quasi-zero stiffness. The calculation has shown that the metamaterial has natural frequency lower than 1 Hz and optimum load 2 tons per m2. An experimental prototype has been made for further study.
Effect of Pore Architecture of Titanium Implants on Stress-Strain State upon Compression
Authors: Loginov Yu.N. , Stepanov S.I. , Khanykova E.V.
Published: September 2017

The problem of stress-strain state upon compression of implant of titanium alloy with cellular architecture was formulated by means of ABAQUS software and finite element analysis. The volume of the material was segmented on the unit cells characterized by specific configuration. The boundary conditions and physical equations were stated to describe the correlation between stresses and strains. The calculations of stress values, area reduction and mean stress were performed. The increased strain rates were revealed in horizontal pore cell walls. Joint simulating of several individual unit cells was provided. Zone seeing tensile stresses were observed in the segment of radius of the unit cell. The estimation of threatening sections location of the construction was conducted.