bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of humic acid and seaweed extract (ALGA) on growth characteristics and nutrient content of local apricot seedlings Prunus armeniaca L.
Authors: Al-Temimi H M A , Ali A A , Muhsin Z M. 
Published: December 2019

Abstract
The research was carried out at the Plant canopy of the Department of Horticulture and Landscape, College of Agriculture, University of Kerbala during the growing season of 2016. A factorial experiment with two factors designed. In accordance of randomized completely block design R.C.B.D. to study the effect of spraying with three levels of humic acid (0, 5 and 10 cm3.l−1)and three levels of Alga seaweed extract (0, 1 and 1.5 cm3.l−1)on some vegetative, root growth characteristics and leaf content of mineral elements N, P, K for local apricot seedlings. Treatments with three replicates. Each containing 45 seedlings with five seedlings per experimental unit were adopted. The results showed that a significant increase in plant height, stem diameter, number of leaves, leaf area, leaf content of chlorophyll, nitrogen, phosphorus and potassium, dry weight of shoot, root length, and dry weight of root was noticed when treated with humic acid or seaweed extract (ALGA) alone or jointly compared with control treatment. The interaction between treatments measured at a concentration of 10 cm3.l−1 humic acid and 1.5 cm3.l−1. Alga the highest significant increase in the vegetative, root and leaf content of N.P.K for apricot seedlings was observed.
The response of Okra Abelmoshus esculentus L. to mycorrhizae and biological stimulators (biozyme and phosphalas) on yield and quantity indicators
Authors: Abdul-Alhussein R M , Alawi M M , Abood H H 
Published: December 2019

Abstract
The research was carried out in the fields belongs to Horticulture Department / Agriculture Faculty Baghdad University / Al-Jadiriyah for the Spring season 2016 -2017 to study the effect of bio-fertilizer and spraying with Biological Stimulators and their interaction effect on yield and quantity characters of (local okra Petra). The experiment was lay out as a factorial experiment in Randomized Complete Block Design (RCBD), the experiment included (12) treatment Distributed to three replicates. The three factors used in this experiment included. The inoculation with control (C), Mycorrhizae (M), Biozyme (B) (B1 2cm3.L−1), (B2 4cm1-.L−1), Phosphalas (P) (P 2cm3.L−1), (M+B1), (M+B2), (P+M), (P+B1), (P+B2), (M+P+B1), (M+P+B2).The readings were analyzed according to the design followed and the mean was tested by the lowest significant difference at 0.05%. The results showed a significant increase in the studied traits. The results showed that the three factors and their interactions had significant effects on most of the growth characters measured. The inoculation with the Mycorrhizae, Biozyme and Phosphalas was superior in giving higher values of yield per plant (2435) g.plant−1 (M1B1P1), total yield 9.34 ton. ha−1 (M1B2P1), carbohydrate in pods 33.61 % (M1B2P1), protein in pods 2.94 % (M1B1P0), fiber in pods % (M1B2P1) respectively.
The concept of creating perspective technological paradigm of formation (development) of the underground space on the basis of the leading development of new approaches in construction geotechnology and geotechnics. Premises and basic provisions (part 1)
Authors: Aksenov V V , Khoreshok A A , Beglyakov V U , Efremenkov A B 
Published: December 2019

Abstract
The article presents some reasons for the lagging of domestic mining engineering from foreign competitors, substantiates the need to form a new promising technological paradigm in the field of formation and development of underground space. A new systematic approach to the development of geotechnics and geotechnologies is proposed, which allows for creation of prerequisites for formation of a new technological structure and Russia’s breakthrough into leading positions in the field of geotechnology and mining engineering.
Mathematical modelling of the dosing process of bulk materials on the example of the sowing apparatus of a seeder
Authors: Algazin D N 
Published: December 2019

Abstract
A mathematical model of the dosing process of bulk materials has been developed, it allows to determine the optimal technological and design parameters of the metering device of the sowing apparatus of a seeder. A new type of a sowing apparatus of a seeder is proposed, allowing to seed small-seeded crops.
Improving the reliability of technological equipment in the production of thermoelectric elements
Authors: Alisin V V , Shishova V V 
Published: December 2019

Abstract
The article is devoted to increasing the service life of the bearing of the mixing assembly in the installation for the synthesis of bismuth telluride. Comparative tribological experiments were carried out. It is shown that the implementation of a bearing bush from a nanostructured crystal of partially stabilized zirconium dioxide can increase by 4 times the reliability and service life of the installation.
The effect of nanoceramic materials on the tribological properties of technological lubricants
Authors: Berdichevsky E G 
Published: December 2019

Abstract
The effect of some nanotechnological materials such as boehmite and β-sialon on the tribological characteristics of technological lubricants has been studied. It is shown that even a low percentage of nanoceramics used for doping mineral oils can significantly improve the tribological situation in the zone of boundary contact friction. Technical and economic characteristics of the considered nanoceramics suggest them promising components in the development of innovative technological lubricants for heavy duty friction.
The influence of the temperature conversion rate on the deformation processes of the shape memory effect and transformation plasticity
Authors: Khlopkov E A , Zhurbenko P N , Tikhomirov A A , Volkov G A , Zatulsky G Z , Vyunenko Yu N 
Published: December 2019

Abstract
The influence of the temperature conversion speed on the mechanical characteristics of metals with shape memory is mentioned in connection with the dissipative properties of this materials class. This paper presents the different cooling and heating regimes research results of ring-shaped force elements and spiral drives demonstrating the possibility of this parameter influence on their deformation characteristics in the temperature range of martensitic transformation.
The dynamic of cooling of cast iron in the cristllizer in condition of the semi-continuous production process bimetallic band “steel-cast iron”
Authors: Lihoshva V P , Shmatko A V , Savin V V , Savina L A , Tymoshenko A N 
Published: December 2019

Abstract
The dynamics of hard crust formation is investigated in the liquid melt by contact with the working walls of the copper crystallizer under conditions of continuous production of bimetallic products such as “band” at different speeds of the process. The optimal speed is identifying to achieve maximum performance with the satisfactory quality of the finished products. Recommendations for increase speed of carrying out process are offered.
Superhydrophobic coating based on silicone resin SILRES® MSE 100
Authors: Loganina V I 
Published: December 2019

Abstract
The anti-icing properties of coatings based on the developed composition are considered. It was shown, that after wetting during 72 hours, the coatings based on the proposed composition retained a superhydrophobic effect. The wetting angle on the mortar substrate was more than 150 degrees. Adhesion of coatings to the substrate after wetting amounted to 1 point. Information is given about the results of evaluation of the adhesion of ice to a superhydrophobic metal surface. It is shown, that the force of detachment of a drop of water on a superhydrophobic metal surface is 3 times less. It ensures easier rolling of a drop of water from the surface and its anti-icing properties. It is established, that the adhesion of ice to the superhydrophobic surface is less compared to the hydrophilic one. It is shown, that there is no difference in the rate of ice evaporation on a hydrophilic and superhydrophobic surface.
Structural and analytical mesomechanics of fracture
Authors: Malinin V G , Malinina N A , Malinin V V , Malukhina O A 
Published: December 2019

Abstract
Developing methodology of structural-analytical theory of strength, this article outlines methods for constructing a variant of defining equations of structural-analytical mesomechanics of failure, based on a rational synthesis of the main achievements of continuum mechanics, physics of plasticity and strength of solids, and other related disciplines. Loaded material is considered as a multi-level system in which micro, meso and macro levels are organically interconnected. Each scale level is characterized by its mechanisms and laws of deformation, the evolution of structure and damaging.
A method for constructing a two-level fracture criterion is being developed, which takes into account the hierarchical nature of the development of damaging and mutual influence of structural concentrators zones (SCZ) and macro stress concentrators. In order to take into account the influence of SCZ at the mesoscale level, experimentally justified tensor parameters of the magnetomechanical effect are introduced: magnetic distortion tensor and tensor intensity of intrinsic magnetic field of dispersion that occurs in the SCZ of the loaded body. Possible directions for the development of fracture mesomechanics are discussed.
Structural and analytical mesomechanics of alloys with shape memory effect in the concept of interacting levels of deformation and destruction
Authors: Malinin GV , Malinin V G , Malinin N A , Malukhina O A 
Published: December 2019

Abstract
This article presents the results of the development of structural-analytical mesomechanics based on the concept of interacting multi-level (micro, meso and macro) plastic flow, the evolution of structural damage and martensitic phase transformations. It presents a system of constitutive relations, which take into account the mutual influence of plastic deformations, processes of destruction and structural phase transformations of martensitic nature for alloys with shape memory effect (SME).
The calculation of beam-wall made of material with shape memory effect by the finite element method
Authors: Malinin G V , Malinina N A , Malukhina O A 
Published: December 2019

Abstract
In present article application of a method of finite elements for calculation of beamwall, executed from a material with effect of memory of the form (SME) is considered. The equations of structural-analytical mesomechanics were used as defining relations.
Improving the efficiency of a vapor refrigerating machine with a screw compressor while adjusting the performance
Authors: Noskov A N , Tarasenkov D S , Arendateleva S I , Zawadzki I M 
Published: December 2019

Abstract
When using an air condenser in a refrigeration machine, the condensation temperature significantly depends on the parameters of the outside air. To ensure stable operation of the throttling device, the condensation temperature must be maintained and remain no lower than a certain value. This leads to unnecessary energy consumption for steam compression in the compressor. The article presents a scheme of a refrigerating machine with a screw compressor which allows to reduce energy consumption for cold production by reducing the condensation pressure when the ambient temperature drops and installing a pump in front of a throttle device. Operation of the refrigerating machine with a screw oil-filled compressor with full capacity on different modes has peculiarities. The article describes the regulator of the screw compressor, which consists of a spool and two butterfly valves. This design allows for adjustment of the geometric degree of compression with full performance and allows to get arbitrary laws of change with decreasing performance. The article presents the dependences of cooling capacity, effective power and coefficient of performance at full and 50% performance of a screw compressor with a decrease in condensation temperature. Experimental and calculated characteristics of a refrigeration oil-filled screw compressor operating on Freon R22 were used. Using a scheme of a vapor refrigerating machine with a screw compressor pump in front of the throttle valve can significantly increase the energy efficiency of its work.
Simulation investigation of a heat pump, operating on a low-temperature source of heat and a constant condensation pressure
Authors: Rachkovskiy N O , Tatarenko Iu V , Mitropov V V , Naumova O S , Bordashev K A 
Published: December 2019

Abstract
The simulation investigation was carried out at the “Vapor Compression Heat Pump” stand, which allows simulating the annual cycle of operation of the heat pump. Values and further calculations were determined by the operating characteristics of the cycle. Calculations were made according to generally accepted dependencies. As a result of simulating the annual cycle of the heat pump operation, the operational and energy characteristics of the heat pump were determined under the specified conditions: maintaining the specified condensing pressure pc
=1,31 MPa and the changing temperature of the low-potential heat source – water tw4, which varied from from – 0,3ºC to + 10,1ºC. Based on the obtained data, it was estimated the change in the heat pump coefficient of performance (COP) as a function of the low–grade heat source temperature, as well as the application potential of renewable energy sources.
Electrochemical metallization of molybdenum alloys
Authors: Tikhonov A A , Arendateleva S I , Perepelitsa T I 
Published: December 2019

Abstract
The experimental data about influence of chemical and electrochemical operations of surface treatment of alloys of molybdenum on adhesion and solderability of electroplatings are provided. Influence of structures and the modes of electrolytes on quality of coverings, adhesion and solderability of the coverings applied on molybdenum alloys is studied. It is proved that use of combination in one electrolyte of two operations: electrochemical etching and at once the carried-out operation of copper plating, leads to increase in adhesion of coverings to molybdenum alloys. It occurs because the oxide layer is rather fully pitted during anodic dissolution, and the most important, it doesn’t manage to be formed before deposition again as it occurs in many other known technological processes. The developed technology of galvanic metallization of molybdenic alloys allows: to reduce the number of technological operations, to increase efficiency of process, to use cheaper inventory, to increase adhesion of electroplatings to alloys of molybdenum and to improve their solderability.
Optimal Plastic Analysis of Structures under Uncertain Conditions
Authors: Rad Majid Movahedi 
Published: December 2019

Abstract
In this study optimum plastic shakedown analysis of framed steel structures with semi-rigid connections (SRC) between beam and columns subjected to multi-parameter static loading presented. Since shakedown analysis does not provide information concerned with the accumulated residual displacements, complementary strain energy of the residual force (CSERF) considered as constrain to evaluate the post yield behavior of framed steel structures. The constraints on the CSERF are modelled using probabilistic and deterministic methods. To evaluate the maximum shakedown load-multipliers a numerical example is introduced, shakedown load-multipliers are calculated and safe loading domains of the framed steel structure are illustrated. The numerical results show that the constraints on CSERF, SRC and probabilistic given constraints can influence on the value of the shakedown load-multipliers.
Evaluation of Visual Preference for Seasonal Streetscape Design Using 3D Simulation Technology
Authors: Hyunjin Chun , Yue Wang 
Published: December 2019

Abstract
As 3D technology advances, many designers are using 3D technology in their design research. Environment designers, in particular, conduct public design research using 3D simulation technology. In the field of environmental design, green space is an important factor in determining the image of public design. Green space, however, has different visual preferences as the seasons change. Thus, this research aimed to analyze the visual preferences of streetscape according to the seasons change using 3D simulation technology. The result of the study shows that the autumn image of maple background and ginkgo background are more preferred than the winter image of maple background and ginkgo background. In conclusion, the change of seasons is a crucial factor in determining the visual preference of the landscape. Designers, therefore, should consider the variation of seasons as well as the shape of streetscape to improve the visual preference of a streetscape. These findings could also be applied as theoretical data to conduct the public design.
Research on UX Evaluation Model of Computer Input Devices (Keyboard and Mouse) Based on AHP
Authors: Huang Zhaohui , Li Haoda 
Published: December 2019

Abstract
With the rapid development of the Internet, there are more and more computer input devices for different usage scenarios, and a lot of factors need to be considered comprehensively when users select computer input devices. At present, there are still some problems need to be solved in this field: how to evaluate the user experience of computer input devices in order to give reasonable suggestions to consumers when making purchasing decisions; how can design and development personnel find the shortcomings of design solutions in the design decision process? Aiming at the above problems, a user experience evaluation system for computer input devices is proposed.
Firstly, based on the user experience 5E model proposed by Whitney Quesenbury, the user experience evaluation system of computer input device was constructed by using the questionnaire method, interview method, and expert opinion method. Then, the user experience evaluation model of computer input device was constructed by AHP.
This paper takes computer input equipment as the research object and studies the user experience evaluation method of computer input device through the combination of qualitative and quantitative research methods. Established a more scientific user experience evaluation system to guide the design and development personnel in the design decision process. And provides reasonable suggestions for consumers to purchase and has certain reference value in the field of user experience evaluation research.
The Development of Shop Documentation Plug-In Based on NX Software
Authors: Zhao Jiaqi , Yang Xiaodong , Wu Ligeng 
Published: December 2019

Abstract
Shop documentation is a document filled with all relevant information of product processing, which is playing an important role in CNC machining. At present, although shop documentation could be generated from 3D modelling software, the contents in shop documentation are usually not up to operators’ requirement. On this condition, the data structure of shop documentation should be rebuilt, and a new approach of generating shop documentation should be created as soon as possible. In this paper, the data structure of shop documentation is redesigned to make sure that the document contains the most suitable information, and a new kind of shop documentation plug-in is developed in Siemens NX software at the same time, which could generate PDF-format shop documentation very fluently. The plug-in is programmed by C++, using the function library of NX software which is called NX Open C. Finally, an example of generating shop documentation in NX software is given to prove that the shop documentation plug-in works properly.
Design Method of Function-Structure Integrated Lattice Structure
Authors: Li G X , Zhang M , Zhao C , Jin X , Luo W P 
Published: December 2019

Abstract
Structure lightweight has always been a hot topic in the field of engineering. Lattice structure has characteristics of light weight, high specific stiffness and high specific strength because of its high porosity and low relative density. It has been widely used in structural lightweight design. In addition, lattice structure has broad application prospects in advanced industrial equipment, due to the potential of anti-vibration, anti-impact, heat transfer and heat dissipation, zero/negative thermal expansion, electromagnetic wave absorption, sound absorption and noise reduction. In this paper, a design method of function-structure integrated lattice structure is proposed, topology optimization and variable density lattice filling technology are studied, the research methods of multi- functional characteristics of lattice structures are discussed, and the related simulation and experimental methods are introduced, which is of certain reference significance to the development of technology in this field.
A Study on the Characteristics of Road Landscape for 3D Design Developing Process
Authors: Hyunjin Chun , Yue Wang 
Published: December 2019

Abstract
Due to Asia’s economic growth and industrialization, there has being a growing interest in road landscapes recently. In the meanwhile, aesthetic aspects in road design are becoming more and more important as 3D design technology advancing. With a view to the above, designers must consider both the structural engineering and the aspect of aesthetics when conceiving new urban roads blueprint. Much more in-depth studies are expected to focus on the aesthetics of roads by utilizing 3D design technology. In light of this, this study was centred on the landscape preferences of road in modern cities from the perspective of building height and planting type alongside. The main results of the study were summarized as follows: The images of H:W=1:3 and H:W=1:1 were more highly preferred than the rest seven images on the grounded that the lower buildings seemed to have better correspondence with the surroundings. And the image of planting with 7.5 meter-interval received the highest evaluation for visual preference on account that this interval provides road landscape with a visual image of stability. In conclusion, this study results illustrated that ratio of building height to road width and the planting interval on footpath were the crucial elements in landscape design. Furthermore, this study also make efforts to present a methodology for 3D design develoement.
Optimizing the Process of Multi-wire Sawing Silicon Rods with Consolidated Abrasive Diamonds Based on RSM
Authors: Chaohua Wu , Ye Wang , Ming Guo , Shun Liu , Jiangjing Lin , Chunliang Fu , Bin Zhou 
Published: December 2019

Abstract
In order to improve the processing efficiency and processing quality of silicon rods, and to optimize the process parameters during the cutting process of silicon rods, the sawing force of wire saw is studied from the aspects of cutting deformation and friction. Meanwhile, the mathematic model is established between the sawing force and some cutting process parameters. Besides, the quadratic regression model is also established by Box-Behnken center combination experiment and the response surface methodology(RSM), which can reflect the wire saw speed, workpiece feed rate and wire saw radius of the interaction of three process parameters on the wire saw sawing force. The results show that the model can accurately predict the sawing force and optimize the process parameters during the cutting process as well.