bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Vision Measurement Device for Seeding Robot based on Ant Colony Algorithm and Nonlinear Circuit System
Authors: Xiaojie Liu , Hongjin Zhu , Honghui Fan , Min Zhang
Published: December 2019

In order to solve the problem of low efficiency and accuracy in the control process of seeding robot, a vision measurement device based on ant colony algorithm and nonlinear circuit system is proposed in this paper. By scanning the trunks areas, border crossing points of the bottom of the tree and ground were detected, and these points were divided into two clusters on both sides based on neighbouring relationship. The simulation result is compared with artificial recognition in a two-orchard environment. The result shows that the proposed method is reliable, safe and can satisfy the moving request of seeding robot.
From High Frequency Trading to Self-Organizing Moral Machines
Authors: van Lier Ben
Published: December 2019

Technology is responsible for major systemic changes within the global financial sector in general and particularly in the trade in financial products. The global financial sector has already developed into a comprehensive network of mutually connected people and computers that are constantly evaluating and approving millions of transactions. Algorithms play a crucial role within this global financial network. An algorithm is in essence merely a set of instructions developed by one or more people with the intention of having these instructions performed by a machine such as a computer, a software robot or a physical robot in order to realize an ideal result. As part of a development in which we as human beings have ever higher expectations of algorithms and these algorithms become ever more autonomous in their actions, we cannot avoid including possibilities in these algorithms that enable ethical or more considerations. To develop this ethical or moral consideration, we need a kind of ethical framework which can be used for developing algorithms. With the development of such a framework we can start to think about what we as human beings consider to be moral action by machines within the financial sector based on such a framework.
Software for Membrane Computing
Authors: Florea Andrei George , Buiu Cătălin
Published: December 2019

In order to use membrane computing models for real life applications there is a real need for software that can read a model from some form of input media and afterwards execute it according to the execution rules that are specified in the definition of the model. Another requirement of this software application is for it to be capable of interfacing the computing model with the real world. This chapter discusses how this problem was solved along the years by various researchers around the world. After presenting notable examples from the literature, the discussion continues with a detailed presentation of three membrane computing simulators that have been developed by the authors at the Laboratory of Natural Computing and Robotics at the Politehnica University of Bucharest, Romania.
A PhysX-Based Framework to Develop Rehabilitation Systems Using Haptics and Virtual Reality
Authors: Agostini Michela , D'Andrea Antonio , Daud Omar Andres , Oboe Roberto , Pilastro Davide , Reggiani Monica , Turolla Andrea
Published: December 2019

The use of Virtual Reality (VR), in combination with haptic devices (i.e. robotic manipulators capable of generating forces that stimulate the tactile and/or proprioceptive system of the users) is becoming very popular in the field of rehabilitation. As matter of fact, different rehabilitation requirements, related to various pathologies, are usually addressed by developing specialized haptic devices, together with specific VR worlds and exercises to be performed within. This, in turn, usually brings a tremendous effort when new exercises must be designed and/or new haptic devices, with their mechanical model and hardware (HW) interfaces, must be embedded into an existing environment. To cope with the required flexibility and adaptability, while reducing the development cost, we propose in this chapter a software framework that aims at reducing the development time and cost of new VR+haptics systems, through the use of well-known software design patterns (Model/View/Controller, Strategy, Observer) and freely available technologies (XML, PhysX).
Multimodal Feedback in Human-Robot Interaction
Authors: aus der Wieschen Maria Vanessa , Fischer Kerstin , Kukliński Kamil , Jensen Lars Christian , Savarimuthu Thiusius Rajeeth
Published: December 2019

A major area of interest within the fields of human-computer interaction (HCI) and human-robot interaction (HRI) is user feedback. Previous work in HCI has investigated the effects of error feedback on task efficiency and error rates, yet, these studies have been mostly restricted to comparisons of inherently different feedback modalities, for example auditory and visual, and as such fail to acknowledge the many possible variations within each of these modalities, some of which being more effective than others. This chapter applies a user-centered approach to investigating feedback modalities for robot teleoperation by naïve users. It identifies the reasons why novice users need feedback when demonstrating novel behaviors to a teleoperated industrial robot and evaluates both various feedback modalities designed to prevent errors and, drawing on document design theory, studies different kinds of visual presentation regarding their effectiveness in the creation of legible error feedback screens.
Indoor Localization and Navigation for a Mobile Robot Equipped with Rotating Ultrasonic Sensors Using a Smartphone as the Robot's Brain
Authors: Lim Jongil , Lee Seokju , Tewolde Girma , Kwon Jaerock
Published: December 2019

Identifying the current location of a robot is a prerequisite for robot navigation. To localize a robot, one popular way is to use particle filters that estimate the posterior probabilistic density of a robot's state space. But this Bayesian recursion approach is computationally expensive. Most microcontrollers in a small mobile robot cannot afford it. The authors propose to use a smartphone as a robot's brain in which heavy-duty computations take place whereas an embedded microcontroller on the robot processes rudimentary sensors such as ultrasonic and touch sensors. In their design, a smartphone is wirelessly connected to a robot via Bluetooth by which distance measurements from the robot are sent to the smartphone. Then the smartphone takes responsible for computationally expensive operations like executing the particle filter algorithm. In this paper, the authors designed a mobile robot and its control architecture to demonstrate that the robot can navigate indoor environment while avoiding obstacles and localize its current position.
Sexbots
Authors: Mackenzie Robin
Published: December 2019

This article describes how sexbots: sentient, self-aware, feeling artificial moral agents created soon as customised potential sexual/intimate partners provoke crucial questions for technoethics. Coeckelbergh's model of human/robotic relations as co-evolving to their mutual benefit through mutual vulnerability is applied to sexbots. As sexbots have a sustainable claim to moral standing, benefits and vulnerabilities inherent in human/sexbots relations must be identified and addressed for both parties. Humans' and sexbots' vulnerabilities are explored, drawing on the philosophy and social science of dehumanisation and inclusion/exclusion. This article argues humans as creators owe a duty of care to sentient beings they create. Responsible innovation practices involving stakeholders debating ethicolegal conundrums pertaining to human duties to sexbots, and sexbots' putative interests, rights and responsibilities are essential. These validate the legal recognition of sexbots, the protection of their interests through regulatory oversight and ethical limitations on customisation which must be put in place.
Mission Design of Mobile Manipulators in Cluttered Environments for Service Applications
Authors: Xidias Elias K. , Azariadis Philip N. , Aspragathos Nikos A.
Published: December 2019

The purpose of this paper is to present a mission design approach for a service mobile manipulator which is moving and manipulating objects in partly known indoor environments. The mobile manipulator is requested to pick up and place objects on predefined places (stations). The proposed approach is based on the Bump-Surface concept to represent robot's environment through a single mathematical entity. The solution of the mission design problem is searched on a higher dimension Bump-Surface in such a way that its inverse image into the actual robot environment satisfies the given objectives and constraints. The problem's objectives consist of determining the best feasible paths for both the mobile platform and for the manipulator's end-effector so that all the stations are served at the lowest possible cost. Simulation examples are presented to show the effectiveness of the presented approach.
The MuseBot Project
Authors: Gallozzi Arturo , Carbone Giuseppe , Ceccarelli Marco , De Stefano Claudio , Scotto di Freca Alessandra , Bianchi Marina , Cigola Michela
Published: December 2019

This chapter intends to present the MuseBot system as the result of multidisciplinary research, underway at the University of Cassino and Southern Latium, which focuses on the use of robots for visiting a museum during closing time. During the visit the visitor, connected to the robot through a home computer, smartphone or tablet can control and “drive” the device through the halls of the museum. During the virtual tour the visitor, focusing and viewing the various works on display can get a simple view or an extended examination of the work that he/she is looking at, through a specially prepared multimedia database.
An Approach towards Survey and Analysis of Cloud Robotics
Authors: Chowdhury Akash , Mukherjee Swastik , Banerjee Sourav
Published: December 2019

This chapter highlights the total structure and capabilities of robotic systems. This chapter then discusses the invocation of cloud technology in robotics technology empowering the whole system with higher processing power and bigger storage unit which was not possible earlier in the conventional robotic system being restricted in on-board manipulation. The flexibility of handling big data, ability to perform cloud computing, crowed sourcing and collaborative robot learning using the cloud robotics technology has been discussed briefly. This chapter describes concepts of Cloud Enabled Standalone Robotic System (CeSRS), Cloud Enabled Networked Robotic System (CeNRS), Cloud Robotic Networking System (CRNS), Standalone Robotic System (SRS), Common Networked Robotic (CNRS), Infrastructure As A Service (IAAS), Multi Robot System, R/R and R/C Network, ROS, Tele Operated Robotic System, Quality of Service (QoS), Virtual Machine (VM) and Cloud Datacenter. The existing applications of the cloud robotics technology are also described. However, the chapter focuses on the problems either inherited from the parent technology or appeared in the child technology. This chapter further recommends some solutions, new future directions and research aspects of the cloud robotics technology depending on the applications.
Fenômica
Authors: Roberto dos Santos Marcos , Madalozzo Guilherme Afonso , Fernandes José Maurício Cunha , Rieder Rafael
Published: December 2019

Computer vision and image processing procedures could obtain crop data frequently and precisely, such as vegetation indexes, and correlating them with other variables, like biomass and crop yield. This work presents the development of a computer vision system for high-throughput phenotyping, considering three solutions: an image capture software linked to a low-cost appliance; an image-processing program for feature extraction; and a web application for results' presentation. As a case study, we used normalized difference vegetation index (NDVI) data from a wheat crop experiment of the Brazilian Agricultural Research Corporation. Regression analysis showed that NDVI explains 98.9, 92.8, and 88.2% of the variability found in the biomass values for crop plots with 82, 150, and 200 kg of N ha1 fertilizer applications, respectively. As a result, NDVI generated by our system presented a strong correlation with the biomass, showing a way to specify a new yield prediction model from the beginning of the crop.
Big Data Challenges and Opportunities in Agriculture
Authors: Maya Gopal P.S.  , Chintala Bhargavi Renta
Published: December 2019

This article reviews various aspects of research concerning the background and state-of-the-art of big data in agriculture. This article focuses on data generation, storage, analysis and visualization in big data. In every phase, technical challenges and the latest advancement are discussed, and these discussions aim to provide a comprehensive overview and complete picture of this exciting area. This survey is concluded with a discussion on the application of big data in precision agriculture and its future directions.
Data Science Techniques in Knowledge-Intensive Business Processes
Authors: Lederer Matthias , Riedl Joanna
Published: December 2019

The processes of an investment bank are considered to be particularly knowledge-intensive, because analysts need to extract or generate relevant knowledge from a variety of data. With increasing digitization, modern data science and business intelligence techniques are available to support or partially automate these activities. This study presents concrete use cases for front office processes of an investment bank as how knowledge management techniques can be used. For example, the article describes how expert systems can be used in the due diligence review or how fuzzy logic systems help in deciding whether to buy or sell securities. The article is based on 1079 texts (e.g. documented cases and articles) and serves researchers as well as practitioners as an application overview of data science techniques in the example area of knowledge-intensive banking processes.
Hydrogen Storage Capacity in Ni/Pd@f-MWCNTS Decorated Graphene Oxide/Cu-BTC Composites at Room Temperatures
Authors: Konni Madhavi , Karnena Manoj Kumar , Mukkamala Saratchandra Babu
Published: December 2019

Hydrogen is considered to be one of the renewable and cleanest energy source and most probable successor of conventional petroleum fuels. Hydrogen storage in nanoporous materials has been attracting a great deal of attention in recent years. The addition of carbon materials such as graphene oxides (GOs) and carbon nanotubes (CNTs) into MOFs can improve the physicochemical properties of parent MOFs with excellent chemical, mechanical and distinguished electronic thermal robustness. The decoration of the surface of graphene by metal could greatly facilitate the hydrogen storage. In the current study, the parent materials and their composites synthesized have been characterized by powder x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and gas adsorption isotherms. The composite systems, GO/Cu-BTC/Ni@f-MWCNTs and GO/Cu-BTC/Pd@f-MWCNTs reached a hydrogen storage capacity of 3.91 and 4.21 wt. % at 77 K and 1.23 and 1.71% at 298 K.
Influence of Zinc Oxide Nanoparticles on the Optical, Dielectric and Electromagnetic Interference Shielding Performance of Polystyrene Films
Authors: Madhu B. J. , Irfan Mohammed , Manjunath A. , Divya N. P. , Mahesh S. S. , Shruthi B.
Published: December 2019

In the present work, Zinc oxide (ZnO) nanoparticles are synthesized using solvothermal technique. Polystyrene-ZnO (PS/ZnO) nanocomposite films are synthesized by solution casting procedure. PS/ZnO films are analyzed by XRD, FTIR and UV-Vis spectroscopic techniques. The addition of ZnO into the PS film is found to decrease the optical band gap (OBG) from 4.07 eV to 1.86 eV. Frequency dependence of dielectric constant (ε′), loss tangent (tanδ), ac conductivity (σac) and electromagnetic (EM) interference shielding effectiveness (SE) studies have been undertaken on the pure PS and PS/ZnO films. Insertion of ZnO into pure PS polymer matrix is found to enhance ε′, tanδ, σac, and SE considerably. The ε′ and tanδ were reduced with an enhancement in the frequency. σac of PS/ZnO nanocomposites was enhanced with rise in frequency and electrical conduction process in PS/ZnO film is in agreement with an electron-hopping model. EM interference SE is reduced with rise in the frequency. PS/ZnO films were proven as a favorable functional substance for the absorbing of EM waves at lower frequencies.
Optimization of Tribological Behavior of Mg-Wc Nanocomposites at Elevated Temperature
Authors: Banerjee Sudip , Poria Suswagata , Sutradhar Goutam , Sahoo Prasanta
Published: December 2019

The present investigation scrutinizes the role of wt.% of WC (0, 0.5, 1, 1.5 and 2%), operating temperature (50, 100, 150, 200 and 250°C) and load (20, 30 and 40N) on wear rate and coefficient of friction (COF) of Mg-WC nanocomposites. A multilevel full factorial design is considered to optimize the response variables. Mg-WC nanocomposites are synthesized through ultrasonic vibration assisted stir casting method. Tribological tests are performed in a pin-on-disk tribotester at dry sliding condition. Optical microscope and scanning electron microscope (SEM) are used to visualize the microstructural phases and distribution of reinforcements respectively. Main effect plots and interaction plots are analyzed to find the effect of selected parameters and their interactions. Analysis of variance (ANOVA) is also carried out for response variables to find the significant parameters. Linear regression equations are also generated to relate the output and input parameters. Worn surfaces are studied with the help of SEM images to examine the wear mechanisms.
Elastic Behavior of the Plain Journal Bearing Coated With a Textured Surface and a Non-Textured Surface
Authors: Kadda Mehala , Nadia Bendaoud
Published: December 2019

Surface texturing technology has been newly explored technique in the tribological domain, and this method is carried out to improve the displacement and performance of the Babbitt plain journal bearing with a textured surface. The numerical analysis is carried out to study the textured surface effect on the elastic behaviour of the journal bearing. First, the bearing is tested without texture; second, it is examined completely textured, by varying the operating parameters of the bearing. The performance is observed in a pressure profile, displacement, and shear stress, generated for each combination of radial loads, and rotational velocity of the shaft. The numerical modelling is used by solving the displacement equations by the finite element method to analyses bearing displacement for severe operating conditions. The results show that the elastic deformations for textured bearing, are important and preponderant for higher rotational speeds, and shear stresses are important for higher hydrodynamic pressures.
Low Appetite for High Tech
Authors: Tollis Claire , L'Hostis Alain , Boubakour Redha
Published: December 2019

In low-density urban areas, technologies are expected to play a significant role in tackling the ongoing mobility transition. A multidisciplinary research project focused on how a smart suburbs project, in Loos-en-Gohelle, France, could be promoted through resident participation. However, both the low level of smartphone ownership and the lack of appetite for technological tools discredited the hypothesis that technologies were essential to a faster mobility transition in this periurban area. This experience raises questions about the feasibility as well as the coherence of an approach that seeks to combine public participation as an ethical commitment to research, with smart territories as a scientific and political project. The inhabitants engaged in the project expressed the need and a certain readiness for change with respect to mobility within the municipal area of Loos-en-Gohelle, but were significantly indifferent to technological solutions.
Acción colectiva frente a la violencia estatal argentina (1976-2001). Derechos Humanos, estrategias repertoriales y tácticas de visibilización
Authors: Scocco Marianela , Godoy Sebastián
Published: December 2019

El presente trabajo reflexiona alrededor de estrategias repertoriales de acción colectiva y prácticas performáticas en Rosario. Tienen en común ser protagonizadas por una conjunción de organismos de derechos humanos y otros actores en intervenciones artísticas, en pos de reclamar frente a la violencia estatal. Abordamos dos modulaciones históricas de un proceso más amplio (1976-2001). Primera (década de 1980): se sitúa en la relación de los organismos de derechos humanos y una serie de repertorios de acción artístico-política. Segunda (década de 1990): comprende a la agrupación HIJOS y diversos actores y colectivos, en la realización de acciones estéticas, pedagógicas y políticas.
Dossiê: História, cidadania e direitos humanos.
Authors: Priori Angelo , Alonso Luciano
Published: December 2019

Editorial do dossiê: História, cidadania e direitos humanos.
Improving the Cement Systems Corrosion Resistance Based on Clogging Theory
Authors: Rakhimbaev Shark M. , Tolypina N.M. , Khakhaleva E.N. , Tolypin D.A.
Published: December 2019

One of the most important elements of the primary protection of concrete structures against chemical aggression is the correct choice of the type of cement. Specialists have done a lot of work to clarify the comparative stability of various types of cement systems in aggressive media containing various aggressive components [1-3]. Resistant cements for certain types of corrosion are known, but there is no complete concept of their choice. This causes difficulties in choosing the type of cement for specific types of corrosion in organic media, for complex types of corrosion, when the application of empirical approaches is unsuitable. This work is devoted to this issue.
Effect of Mineral Fillers on the Polyurethane Foam Performance Properties
Authors: Suleymanova Ludmila A. , Pogorelova Inna A. , Kocherzhenko Andrey V. , Ryabchevsky Igor S.
Published: December 2019

The authors investigated the possibility of increasing the basic operational properties of polyurethane foam by introducing such mineral fillers as clay, loam, sand, and others, including man-made ones. For the first time polyurethane foam filling with industrial waste from mining and processing plants, in particular, wet magnetic separation of ferruginous quartzites (hereinafter - tailings) was proposed. The resulting insulating composites with improved performance properties will expand the use range of the material in construction.
Synthetic Snow Substitutes as the Basis for the Recreation and Sports Facilities Sustainable Operation
Authors: Afonina Marina , Ivanov Sergey
Published: December 2019

Climatic changes and a series of snowy winters significantly affect the operation duration of winter sports centers, the basis of which is the stable snow cover presence. Modern technical capabilities make it possible to organize the recreation and sports facilities year-round work, where slopes equipped with materials and technological systems replacing natural resources are used as an alternative to natural snow cover. The artificial snow use history in different countries is presented. The aim of the study is to determine the feasibility of using synthetic coatings for organizing all-weather operation of sports facilities and winter specialization recreation. The reasons for the complexes demand in the real house vicinity, associated with the people of different ages desire to engage in their favorite type of activity, regardless of natural conditions, are determined. A modern social demand is the lever for using artificial snow substitutes on modern high-tech complexes. The possibility of using Snow Plast 365 modular brush coatings as a multifunctional material manufactured taking into account the various sports characteristics is considered. The demand for the Russian synthetic brush coating is shown, the area of ​​its use and the sales dynamics are indicated. To confirm the implemented projects’ visibility, the material contains drawings and diagrams.
The Press Powder Technological Parameters Optimization in Wall Ceramics Production by the Semi-Dry Pressing Method
Authors: Gurieva Victoria , Doroshin A.V.
Published: December 2019

The paper presents the fundamental possibility of using ash and slag waste (ASW) of the fuel and energy complex in the production of ceramic bricks using the semi-dry pressing method based on the Buguruslan deposit low-melting aluminosilicate loams. The technological parameters optimization ways (molding moisture, grinding fineness, pressing pressure) in the production of ceramic bricks from low-quality clay raw materials using the experiment mathematical planning method are presented. The separate and joint grinding raw materials mixture rational composition influence on the ceramics technological properties is studied.
Insulation Sheath Materials for Cold Preservation
Authors: Zhukov Alexey D. , Ter-Zakaryan Karapet A. , Bobrova Ekaterina Yu. , Pilipenko Anaton S.
Published: December 2019

The article studies one of the aspects of the heat-insulating multifunctional shells use - the cold preservation. Such task is relevant for cold storages, workshops and warehouses, in which low temperatures constant maintenance is necessary, for sports facilities (for example, ice rinks and ski facilities). In all cases of application, the main goal is to achieve the economic efficiency, which is expressed in functional results (preservation of the material that breaks down at positive temperatures) and in energy savings. The use of polyethylene-based shells, which are connected by a lock joint, is substantiated. The experimental studies results of the material given in the article shows that in terms of resistance to low and alternating temperatures, operational durability, tensile strength and water absorption, this material and insulating shells based on it are quite applicable for insulation of cold-saving objects. The experience of using heat, vapor and moisture insulating shells based on polyethylene foam with the equipment of frameless and frame structures, sports facilities, as well as for the preservation of snow at ski resorts is also provided in the article.
Study of High-Quality Concrete Properties for Roadway Surfaces
Authors: Kazlitina O.V. , Glagolev E.S. , Milkina A.S. , Kazlitin S.A.
Published: December 2019

Currently, the device of cement concrete pavements is still less popular than the asphalt covering. In the construction of roads, great attention should be paid to the widespread use of new, efficient building materials and products of improved quality, with a high degree of prefabrication, ensuring an increase in the level of industrialism, a reduction in material consumption and the cost of road construction. The experience of research, design and devices allows a systematic approach to the design appointment, the choice of materials and technologies for the device of cement concrete roads. The device of cement concrete web of fiber-reinforced concrete is one of the promising areas in the construction complex.
Analysis of the Stress-Strain State of Ceramic Brick when Tested for Compressive Strength
Authors: Serebryanaya Irina A. , Matrosov Andrey A. , Poryadina Natalia A. , Soloviev Arkady N.
Published: December 2019

The article analyzes the change in the stress-strain state of ceramic brick samples when tested in compression, depending on the variable parameters - the type of sample and the method of surface preparation. The experiment showed that the friction forces arising in the “sample-plate test press” zone of contact have a significant effect on the deformation conditions of the samples and lead to an uneven distribution of the breaking load over the surface. This in turn leads to an overestimation of the strength characteristics of the lot, and, consequently, to errors in the calculations of the bearing capacity of the structures. A numerical analysis of the stress distribution also showed that for the samples aligned by grinding and with the help of a mortar; the effect of compression caused by friction forces can be traced. Thus, the results of the numerical experiment are in good agreement with the results of the full-scale experiment. To increase the reliability of the test results, it is necessary to reduce the influence of friction forces and provide conditions for the realization of uniaxial compression. In this regard, it is necessary to adjust the standard test method, namely to use the technical felt gaskets as a method of preparing the surface.
Local Stability of Beams with a Flexible Wall with the Concentrated Force Action
Authors: Pritykin Alexej I. , Kirillov Ilja E.
Published: December 2019

The article considers the local stability of hinged supported beams with a flexible wall, supported by paired stiffeners on the supports and loaded with a concentrated force in the middle of the span. To prevent the loss of stability of the wall from compression, another edge was installed in the area of ​​application of force. The materials considered as beams were steel, aluminum, and stainless steel. In this work, the beam material is steel C345. The study was conducted by analyzing the requirements of the Code of Practice for beams with a flexible wall in terms of the stability loss caused by the two types of deformations - shear and bending. By means of small simplifications, the requirements of the Code of Practice have been transformed into empirical dependencies convenient for practical calculations for estimating the critical loads on the beam. The finite element method with ANSYS software was used as an effective analysis tool. It has been established that in some cases the cause of loss of stability is a shift, and in others - a bend. A criterion for changing the forms of buckling was also obtained. The calculation results for the obtained dependences are in satisfactory agreement with the FEM and experimental data.
Comparative Analysis of Plasticity Theory Algorithms in Finite-Element Calculations of the Rotation Shell
Authors: Klochkov Yuriy V. , Nikolaev Anatoliy P. , Sobolesvskaya Tatiana A. , Klochkov Mikhail Yu.
Published: December 2019

Comparative analysis of the use of the defining equations of plasticity theories obtained at the loading step in three ways is performed. In the first method, the relations between strains increments and stresses increments are obtained by differentiating the governing equations of the small elastic-plastic deformations theory between full stresses and strains. In the second method, the authors based on the proportionality hypothesis between the component deviators of strains increments and the component deviators of stresses increments without separating the incremental strain into elastic and plastic parts obtain the determining equations at the loading step. In the third method, the relations between the incremental strain and the stresses increment of the plastic flow theory are used on the basis of the hypothesis about the proportionality of the plastic deformations increments to the components of the stress deviator. Based on the analysis of algorithms for obtaining the constitutive relations and the analysis of the numerical results of the calculation example, preference is given to the second method of obtaining expressions between stress increments and strain increments without separating the latter into elastic and plastic parts.
Correlation of Quality Assessment Methods of Class F Fly as for Synthesis of Geopolymers
Authors: Kozhuhova N.I. , Zhernovsky I.V. , Kozhukhova M.I. , Voitovich E.V.
Published: December 2019

The demand of highly effective aluminosilicates such as class F fly ash for use in geopolymer synthesis initiated a strong scientific interest for a design of the quality assessment methods. At the same time, the existing assessment methods apparently differ in key parameters which determine the quality of aluminosilicate. This research was focused on determination of relationship between the key parameters of different assessment methods for different types of low-calcium fly ash with high portion of vitreous phase. The insoluble aluminosilicate portion in fly ash that remained after treatment in aggressive acidic media followed by high-temperature treatment at 1000 °C (or the parameterα) was measured in this study. The experimental data showed a very low correlation (R2=0.34) between parameterαand compressive strength of the fly-ash based geopolymer paste. The correlation factors between such genetic parameters of fly ash as portion of vitreous phase (C), SiO2-bonding degree in vitreous phase (fSi) and parameterαdemonstrated dramatically different values: R2(С-α)=0.01; R2(fSi-α)=0.71; R2(С-fSi)=0.0, respectively.
Implementation of Incremental Yield Condition for Continual Problems with Singularity
Authors: Kalashnikov Sergey Y. , Gurova Elena , Kuramshin Renat , Kharlanov Vladimir
Published: December 2019

The limit elastic state of an infinitely large half-plane under the action of concentrated vertical and horizontal forces has been considered. The gradient yield condition specifying the elasto-plastic material yielding initial moment at non-uniform stress state is used as the limit state criterion. The analytical expressions allowing to interpret the result in the singular point have been derived.
The Cut Span Effect on the Beams Inclined Sections Strength Reinforced with External Composite Reinforcement
Authors: Polskoy Petr P. , Mailyan Dmitriy Rafaelovich , Shilov Alexander A.
Published: December 2019

The article presents the studies’ results of the oblique sections strength of 24 reinforced concrete beams, reinforced by three-sided U-shaped carbon fiber collars. The impact of the span section is estimated as 1.5h0 2,0h0 and 2,5h0 on the beams’ composite reinforcement efficiency in the initial inclined cracks presence and absence.
Effect Bonding Strength Steel Reinforcement with Epoxy Coating on the Character Destruction of Autoclaved Aerated Concrete Beams in Bending
Authors: Alhashimi Omar Ismael , Ghareb AL-Hasnawi Yasser Sami
Published: December 2019

Many of the complex reinforced Autoclaved Aerated Concrete characteristics under shear and flexure are yet to be identified to employ this material advantageously and economically, as it has many advantages of low weight, fire resistance, acoustic and thermal insulation. It is observed in the article that under two-points loading system, diagonal cracks are usually the first cracks to be observed in the deep beam clear span. The diagonal cracks first are developed in relatively deep beams and the flexural cracks are first developed in shallower beam. The principal mode of failure in the deep beams having adequate reinforcement is diagonal tension cracking. The shear failure is a common type for all beams. This indicates a weak the bond strength between lightweight concrete and reinforcing steel. There are many factors affecting the bond strength between the lightweight concrete and reinforcing steel, where the compressive strength plays an important role in bond strength, and the bond strength is increased by increasing the compressive strength. The AAC beams have the potential to be an excellently energy-saving construction material and is believed to emerge as an alternative to traditional reinforced concrete beam in the near future. This is proved by the experimental analysis.
Burning the straw man: What exactly is psychological science?
Authors: Maree David J.F.
Published: December 2019

Problemification: Efendic and Van Zyl (2019) argue for following open access-based principles in IO psychology following the recent crises in psychological research. Among others, these refer to the failure to replicate empirical studies which cast doubt on the trustworthiness of what we believe to be psychological knowledge. However, saving knowledge is not the issue at stake: focusing on transparency and compliance to standards might solve some problems but not all.Implications: The crisis focuses our attention on what science is and particularly science in psychology and its related disciplines. Both the scientist–practitioner model of training psychologists and the quantitative–qualitative methods polarity reveal the influence of the received or positivistic view of science as characterised by quantification and measurement. Postmodern resistance to positivism feeds these polarities and conceals the true nature of psychological science.Purpose: This article argues for a realist conception of science that sustains a variety of methods, from interpretative and constructionist approaches to measurement. However, in this view, measurement is not a defining characteristic of science, but a way to find things out and the latter supports a critical process.Recommendations: Revising our understanding of science, thus moving beyond the received view to a realist one, is crucial to manage misconceptions about what counts as knowledge and as appropriate measures when our discipline is in the crossfire. Thus, Efendic and Van Zyl’s (2019) proposals make sense and can be taken on board where measurement as one of the ways to find things out is appropriate. However, realism supports a broader enterprise that can be called scientific because it involves a critical movement of claim and counter-claim while executing its taxonomical and explanatory tasks. Thus, the psychosocial researcher, when analysing discourse, for example, can also be regarded as a scientist.
Расшифровка монотонных функций с исправлением одной ошибки
Authors: Selezneva Svetlana Nikolaevna , Liu Yongqing
Published: December 2019

Задача расшифровки монотонных функций хорошо известна. Из работ В. К. Коробкова и Ж. Анселя следует, что сложность $\varphi_M(n)$ расшифровки монотонных функций алгебры логики равна $C_n^{\lfloor n/2\rfloor} + C_n^{\lfloor n/2\rfloor+1}$ ($\varphi_M(n)$ обозначает наименьшее число вопросов о значении неизвестной монотонной функции на наборе, которое достаточно для восстановления любой монотонной функции $n$ переменных). В работе рассматривается задача расшифровки монотонных функций в случае, когда на вопросы о значении неизвестной монотонной функции на наборе один раз можно получить неверный ответ, но даже при этом ошибочном ответе остается возможность правильно восстановить неизвестную функцию. Показано, что сложность расшифровки монотонных функций алгебры логики при возможном одном неверном ответе такая же, как в случае без неверных ответов.
Максимальные подклассы в классах линейных автоматов над конечными полями
Authors: Chasovskikh Anatolii Aleksandrovich
Published: December 2019

Найдены множества всех предполных классов в классах линейных автоматов над конечными полями. В терминах предполных классов сформулирован алгоритм проверки полноты конечных подмножеств.
Co-gestão adaptativa em áreas protegidas: reflexões a partir da estação ecológica de Guaraqueçaba, Paraná
Authors: Tebet Guilherme , Trimble Micaela
Published: December 2019

Este artigo analisa, a partir do enfoque da co-gestão adaptativa, o conselho consultivo da Estação Ecológica de Guaraqueçaba no Paraná. Para isso foram realizadas entrevistas, questionários, observação participante e análise documental entre 2014 e 2017. Os resultados apontam obstáculos em garantir a participação legitima e efetiva dos diferentes atores sociais, baixo grau de compartilhamento de poder e a baixa articulação vertical com outras escalas institucionais, dificultando a gestão dos conflitos, a transparência na gestão e a adequação da unidade conservação à realidade local.
O papel da indústria na renda per capita dos municípios gaúchos: uma abordagem espacial
Authors: Alvarenga Samia Mercado , Delazeri Linda Mendes , Vieira Kelmara Mendes
Published: December 2019

Ainda hoje o Rio Grande do Sul é marcado por regiões que se destacam pelo dinamismo econômico e coexistem com as regiões totalmente retardatárias. A explicação para esses diferenciais regionais encontra alicerces na Teoria Kaldoriana sobre a importância da indústria na determinação da renda regional. Diante disso, o presente estudo busca avaliar a influência do setor industrial na renda nominal dos municípios gaúchos no ano de 2015. Especificamente, buscam-se evidências empíricas da relação entre o produto interno bruto per capita dos municípios e a produtividade da indústria além de variáveis para controle locacionais. Para tanto, aplicam-se estratégias espaciais de estimação. Os principais resultados revelam padrões de especialização industrial no nordeste do estado. A influência espacial foi confirmada e os resultados do modelo corroboram a importância do setor industrial para a região, testemunhando em favor das proposições teóricas de Kaldor.
Knowledge gaps and practice patterns of clinicians treating patients with opioid use disorder
Authors: Rasulnia, PhD Maziar , Burton, MS Billy Stephen , Patel, PharmD Dhiren
Published: December 2019

Objective: The goal of the study was to assess knowledge gaps and practice patterns of US-based addiction specialists, primary care physicians (PCPs), nurse practitioners (NPs), and physician assistants (PAs) who treat patients with opioid use disorder (OUD).Design: As part of a prospective study, the authors developed a survey tool consisting of case-vignettes and questions designed to reveal practice patterns and highlight gaps in clinician knowledge.Setting: The primary study setting included clinicians practicing in outpatient care.Participants: The surveys were distributed via email between August and September 2017 to a national sample of addiction specialists, PCPs, and NPs/Pas that see at least one patient per week and at least 1 percent of their patient population had to be diagnosed with OUD.Results: The knowledge assessment results varied among the clinicians surveyed. Addiction specialists saw more patients with OUD than PCPs, NPs, or PAs. They also demonstrated a higher level of understanding and knowledge of the various domains assessed.Conclusions: There are multiple educational intervention strategies that can support the clinicians; including reducing restrictions to access treatment for OUD, care coordination programs for patients to improve early access to treatment and education, and frequent chart audit and feedback programs to support clinician decision making and education.
EPP-NOx in Antarctic springtime stratospheric column: Evidence from observations and influence of the QBO
Authors: Gordon Emily , Seppälä Annika , Tamminen Johanna
Published: December 2019

Abstract. Observations from the Ozone Monitoring Instrument (OMI) on the Aura satellite are used to study the effect of energetic particle precipitation (EPP, as proxied by the geomagnetic activity index Ap) on the Antarctic stratospheric NO2 column in late winter-spring (Aug-Dec) during the years 2005–2017. We show that the polar (60° S–90° S) stratospheric NO2 column is significantly correlated with EPP throughout the Antarctic spring, until the breakdown of the polar vortex in November. The strongest correlation takes place during years with easterly phase of the quasi-biennial oscillation (QBO). We propose that the QBO affects the polar springtime EPP-NOx in two ways: firstly by modulating the amount of the primary NOx source, N2O, transported to the polar region. Secondly, the QBO affects the temperature of the polar vortex and thus the amount of denitrification occurring in the polar vortex, also verified from HNO3 observations from the Microwave Limb Sounder (MLS/Aura). Our results suggest that NOx produced by EPP significantly contributes to the stratospheric NO2 column at the time when the ozone hole is present in the Antarctic stratosphere. Based on our findings, we recommend that as chlorine activation continues to decrease in the Antarctic stratosphere, the total EPP-NOx should be accounted for in predictions of Antarctic ozone recovery.
REVISITING THE CURRENT UAV REGULATIONS IN NEPAL: A STEP TOWARDS LEGAL DIMENSION FOR UAVS EFFICIENT APPLICATION
Authors: Shrestha R. , Zevenbergen J. , Panday U. S. , Awasthi B. , Karki S.
Published: December 2019

Abstract. UAVs-Unmanned Aerial Vehicles- also known as drones, are an emerging geospatial technology that can facilitate data acquisition at various temporal and spatial scales. Notwithstanding, the wide application of UAVs globally, its wider application is found to be growing in Nepal as well. For instance, precision agriculture, forestry, topographical surveying, etc. It seems that there is a correlation between efficient use of UAVs in these sectors and the legal frameworks that regulate the use of UAVs. Therefore, it seems necessary to obtain holistic national view of UAVs regulations. Aligning with this necessity, this paper provides insight on existing legal provisions for UAVs in Nepal by highlighting the importance, impact, and limitations of UAV regulations. The criteria used in the framework to capture the present holistic legal dimension from literature in the web of science database are a) applicability b) technical requirements c) operational requirements/ limitations d) administration procedure e) human resource requirements and f) implementation of ethical constraints. The adopted methodological approach consists of exploratory case studies, systematic reviews of the concerned literature on UAVs regulations and the workshop on “Flight 4 Purpose” in which various UAVs application were discussed. The results show that the existing legal framework has both strengths and weaknesses for its use to capture the spatial data. The way forward is to harmonize the soft and hard regulations so that such geospatial technology can be applied for overall development and ultimately for the societal benefits.
Reflective Perspectives: Student Autoethnography on Portland State's University Studies Program
Authors: Estes J. R “Jones” , Guthu Amanda , Flesey-Assad Dominic , Ringwelski Faith Hocutt , Jinks Kara , Legat Veronika , Price Emily , Whitlow Gabriela
Published: December 2019

Assessment of student learning is a priority within the University Studies curriculum; however, those findings are aggregated and do not capture the experience, or voice, of the individual student. This article addresses that missing data by ceding the floor to seven dynamic student coauthors. Individually, their autoethnographies illustrate the path each has taken through higher education and how University Studies courses have informed their understanding of themselves along that journey. Collectively, their findings highlight that when faculty practice critical vulnerability and critical reflection, the curriculum meets or exceeds its learning goals. In contrast, we found that the learning goals were rarely used by faculty as a framework for course reflection after Freshman Inquiry. Therefore, to increase the number of faculty both practicing critical vulnerability and providing students a framework for their learning, we recommend the expansion of relational faculty support systems within University Studies to expand the Program's delivery of transformative learning.