bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Relationship of Ink Thickness and Color Saturation
Authors: Pang Ye Chi , Li Zhi Jie , Shi Li Lin
Published: January 2015

In the offset printing process, the amount of ink supplying of fountain directly affects plate ink thickness, thereby affecting the color quality on the printed sheet. Ink layer thickness is difficult to judge by human eye, but we can regulate the ink thickness by detecting the color saturation. This paper describes using complex spectrum spectrometer measured data ink layer thickness and color saturation, draw two graphs of complex spectrum saturation and CIE saturation. Due to the different definitions of saturation, Cause their sensitivity of layer thickness changes response different. Two sets of data shows that the complex spectrum saturation contrast ΔS1 significantly higher than CIE saturation contrast. The data also showed that the ink color performance in terms of the relationship between layer thickness and saturation has an inflection point, the inflection point in the ink film thickness about 4μm, after reaching inflection point, even if the ink layer thickness continues to increase, there will be no significant changes in the saturation.
Research on Gray Balance in Ink-Jet Printing Based on Paper Color Characteristic
Authors: Li Meng Yu , Chen Guang Xue
Published: January 2015

The gray balance in color printing is the basis of accurate color reproduction. In essence, it reproduces accurate gray value by using color ink. In this paper, we choose three kinds of papers with different whiteness, use the same ink -jet printer and the same ink to print gray balance test charts and measure neutral gray blocks in order to draw the gray balance curves. Experimental result shows that the characteristic of gray balance curves obtained by this method are different from those obtained by traditional method. Especially in bright tone, the gray balance data gets a better adjustment, which can improve the exact color reproduction in ink-jet printing.
Study of Hybrid Printing Based on Printed Electronics
Authors: Zhou Ying Mei , Jiang Zhong Min
Published: January 2015

With the development of technologies in printed electronics, they are perfect for low performance applications, such as displays, labels, clothing, and batteries. Flexible, electrical circuits can be printed using functional inks and printing methods, such as screen printing, gravure and inkjet. Uniform ink surface, smoothness, fine lines, and registration are keys in determining the capability of printed electronics. Screen mesh count, printing methods and emulsion thickness are all variables that are involved in screen printing and need to be quantified in order to determine optimal operational conditions. Inkjet printing is used to conductive traces based on its tiny drop. This study attempted to control human errors during operation that might influence electrical conductivity with inkjet and screen printing.
Research of Optimization Design for Transport Packaging Based on Cape Pack
Authors: Lin Jing , Zhang Tie Feng , Xiao Wei , Liu Shu Wei
Published: January 2015

The aseptic carton transportation packaging of Huiyuan juice was taken as an example in this research. Cape Pack was used to design the packaging process of small packaging, middle packaging, transport packaging and vehicle shipment in order to keep the packaging material minimum, transportation space utilization maximum and total cost minimum.
Effect of the Vibration on the Jamming of the Particles in the Hopper
Authors: Lu Jian Dong , Li Lu Hai , Zhang Gai Mei
Published: January 2015

Granular particles exist widely in packaging field. The purpose of this paper is to research the effect of vibration on the particle jamming in the hopper. A new apparatus is developed independently to measure how the vibration influences the particles jamming in the hopper. The data acquired through the apparatus show that the friction between the particles is influenced by the vibration. With the amplitude increasing or the frequency decreasing, the friction between the particles decreases. With the friction decreasing, the particles jamming the hopper begin to slide out of the hopper. So, the increasing amplitude or the decreasing frequency are helpful to release the jamming of the particles in the hopper.
Effect of ClO2 Controlled Release Packaging on the Preservation Performance of Oilseed Rape
Authors: Liu Peng , Li Dong Li , Xu Wen Cai , Fu Ya Bo , Zhang Yang Zhi
Published: January 2015

In order to extend the shelf life of vegetable at room temperature (25±1°C) and lower the decay losses in storage and circulation sales, we studied a kind of three-layer packaging material which could release ClO2. The effects on shelf life of two kinds of preservation packaging were comparatively investigated: ClO2 controlled release packaging and ordinary preservation film with ClO2 sterilization labels, the Oilseed rape packaged with ordinary preservation films as the control group. During the experiment, the headspace concentrations, appearance quality, Total soluble solids (TSS), Titratable acid (TA), and the Vitamin C (VC) content were tested and analyzed every day. The experimental results showed that ClO2 controlled release packaging could form a suited modified atmosphere packaging (MAP) environment and prohibit the growth of microorganism. After 5 days’ storage, the leave of oilseed rape in control group turned yellow and wilted. While the oilseed rape in ClO2 controlled release bags was still fresh and green. The appearance and taste of the oilseed rape in ClO2 controlled release bags still had commercial values. Therefore, the preservation effects were obvious.
Preparation and Properties of Edible Packaging Film Based on Wheat Starch
Authors: Zhang Xin Lin , Luo Shi Yong , Huang Xiao Jun , Xu Wen Cai
Published: January 2015

Low price of wheat starch as a wide range of sources of edible film substrate, glycerol as a plasticizer, pullulan as a film-forming agent, prepared by solution casting of wheat starch-based edible green packaging materials. Tests were run on wheat starch-based edible films to determine mechanical properties, transparency and color evaluation. It was observed that the increase of the glycerol content in the wheat starch films increased the macromolecular mobility, the wheat starch films became less stiff and more flexible. Meanwhile the transparency and yellow index are both increased, obviously.
Fault Diagnosis Method of Offset Printer Feeding Mechanism Based on Kernel Principal Component Analysis and K-Means Clustering
Authors: Xu Qian Qian , Zhang Hai Yan , Hou He Ping , Xu Zhuo Fei
Published: January 2015

The printing machine is a sort of large-scale equipment characterized by high speed and precision. A fault diagnosis method based on kernel principal component analysis (KPCA) and K-means clustering is developed to classify the types of feeding fault. The multidimensional and nonlinear data of printed image could be reduced by KPCA to make up the deficiency of the traditional K-means clustering method. In this paper, it is experimentally verified that the classification accuracy of the combined method is higher than the traditional clustering analysis method in feeding fault detection and diagnosis. This method provides a shortcut for the determination of fault sources and realizes multi-faults diagnosis of printing machinery efficiently
Research and Construction of Clean Production Comprehensive Evaluation System to Printing Equipment
Authors: Pei Rui Ting , Chen Hong
Published: January 2015

With the increasingly serious environmental problems, how to achieve the sustainable development of environment and economic has become a widespread concern at home and abroad. Through the research and analysis of clean production and clean production evaluation index system of domestic and foreign, and according to statistical theory, the reasonable and effective sampling method was determined. By researching the printing equipment manufacture and equipment applied enterprise of domestic, the data contained printing equipment energy use, emissions and product characteristic was obtained. By using the method of expert advice and factor analysis, clean production evaluation indicators and index system was determined.
Design and Experimental Analysis of Tablets Filling Device
Authors: Sun Zhi Hui , Xiao Wei , Ma Li Li , Zhang Li
Published: January 2015

The structure of the micro vibration filling device was designed for tablets and double piezoelectric wafer was used as driving element. Vibration model was established and optimal working parameters were determined. ANSYS was used for modal analysis and the natural frequency was determined. Through experimental analysis the rationality was validated which could meet the filling requirements.
Design of one Electrothermal Cutting Machine Used for Producing Packaging Material
Authors: Xu Ya Ru , Qin Hai Ying , Zheng Guang Ping , Wang Di
Published: January 2015

Based on the problems of low precision, single-function of the plastic molding machine, a smaller electrothermal cutting machine is developed and designed, which is composed with processing platform, positioning clamp, resistance wire conjoined chuck, cantilever beam, fixed mounts, etc. Regulate the temperature of resistance wire to achieve the cutting of foam model with different melting point by adjusting voltmeter and regulating transformer; adjusting the rotatable positioning cones meshed with the adjusted range of positioning clamp and the adjustable distance between positioning clamp and resistance wire can make model with different requirements. The machine is mainly used in cutting and molding of plastic materials, such as foam and sponge, during the experimental teaching and advertising design. Results of the performance test show that using the machine with auxiliary manual operation is more convenient, efficient and accurate than the traditional making process of plastic model.
Effect of Performance of Offset Paper on Ink Transfer
Authors: Gu Ling Ya , Zhang Fu Zhong , Wang Xiao Fang , Li Xiao Lu
Published: January 2015

In order to improve the printing quality, 10 kinds of different manufacturers, different gram weight offset paper are used in this title, measure the quantitative, thickness, gloss, K&N values, and roughness of those paper. Print papers through IGTAIC2-5, calculate the ink transfer rate and transfer parameters. Using SPSS to analysis relationship between the performance of paper and ink transfer rate, transfer parameter b, k, f ' by using mathematical methods. The research results show that the performance of the paper affect ink transfer rate and transfer parameter b, k, f '; The tightness, roughness ,glossiness and K&N value have notable effect on the ink transfer rate and transfer parameter k; transfer parameter b, f ' has no remarkable influence.
Study on Performance of Adherence between UV Varnish and Water-Based Ink
Authors: Wang Xiao Fang , Wei Xian Fu , Gu Ling Ya
Published: January 2015

The adherence plays an important role for studying the binding force between the UV varnish and water-based ink. In order to study the adherence between the UV varnish and water-based ink, the composition that effect on the adherence was studied. The UV varnish samples were prepared by different pre-polymers and different leveling agent. Varnish samples were also prepared by changing amount of leveling agent. Proofs were made by flexo proof press and the PPS value was tested. The adherence of water-based ink on the UV varnish was also tested. The results showed that the type of pre-polymers, the kind of leveling agent and amount have a significant impact on the adherence, the Suitable leveling agent and content should be used.
Effects of Tackifiers on the Properties of one Component Polyurethane Adhesive
Authors: Sun Hong Bin , Lin Mao Hai
Published: January 2015

Polyurethane adhesive is containing isocyanate and urethane groups in the molecular bonds, a kind of adhesive has high polarity and lively type. By adjusting the raw materials and formulations can be perpared to meet the requirement of the raw product between different materials bonding. In this paper, the experiments used poly-1,4-butylene adipate glycol (PBA) as soft segment materials and 4, 4’-diphenylmethane diisocyanate as hard segment materials, and used 1,4-butylene glycol as chain extender. What’s more, the experiment adopt rosin resin, phenylethylene and petroleum resin as polyurethane tackifier, we can composed to polyurethane polymers in certain conditions. By changing the type and amount of tackifier ,we can get different polymers, after that from initial strength, final strength, softening temperature and melt viscosity do a comparative experiment with the polyurethane hot melt adhesive of books binding. The results show that proper selection and addition of petroleum resin can meet the requirement of bond property of polyurethane hot melt adhesive which used in books binding, and it has the advantages of low cost ,energy conservation and environmental protection ,which makes it has a good application prospect.
Progress of Surface Modification of Aluminum Pigments
Authors: Ma Li Ping , Zhou Shi Sheng , Du Bin , Li Min
Published: January 2015

Improving the printability of silver ink is of great importance to enhance the anti-counterfeit of bills. As the main ingredient of silver ink, the study of aluminum pigments has attracted a lot of attention. This paper mainly describes the recent research progress in surface modification and coloration of aluminum pigments.For the high corrosion resistance, good gloss reproducibility, strong dispersion of aluminum pigments that required in the application of water-based ink, this paper first describes different research progresses of enhancing its performance, including inorganic encapsulation, organic/inorganic hybrid modification, polymer coating, organic/inorganic/polymer multi-layer encapsulation and so on through a series of modification methods such as sol-gel method, in-situ polymerization, emulsion polymerization, etc.. In reflection to the color unity of aluminum pigments, the progress of aluminum pigments coloration was also introduced in detail, which involves physical adsorption, chemical oxidation, Fe2O3deposition, organic/inorganic dye coating, etc..
Study on the Detection Methods of Ink Color Standard Based on ISO2846
Authors: Liu Jiang Hao , Gao Shao Hong , Li Qiao Liang , Mao Tian Tian
Published: January 2015

Ink is one of the most important raw materials in printing processes, the quality of printed product uniformity and color reproduction, usually to some extent, depends on ink performance, which needs the authoritative and reliable way to measure ink colors. The paper is to test and verify the ink color measurement methods based on ISO 2846 international standards by the experiments, and the performance indicators of domestic standards substrates are determined through analyzing the characteristics of the domestic printing and ink manufacturing industries, and then the preparation of ink color measurement samples and ink color test conditions are studied.
Synthesis of Polyfunctional Castor Oil-Based Polyurethane Acrylate by the Auxiliary of Thiol-Ene Click Reaction
Authors: Guan Xiao Yuan , Chen Guang Xue , He Ming Hui
Published: January 2015

In this paper, we report a synthetic method to prepare vegetable oil-based polyurethane acrylate (PUA) resin, which can be used in photo polymerization coating, ink and other fields. First, the mercaptoethanol was introduced into castor oil via thiol-ene photo-click reaction with UV irradiation, forming polyhydroxy compounds, then we added the isocyanate acrylate, which was obtained by the reaction between hydroxypropyl acrylate (HPA) and isophorone diisocyanate (IPDI), into polyhydroxy compounds, the molar ratio of HPA and IPDI is 1:1. Finally, we get the castor oil-based polyurethane acrylate. Different functional acrylate can be obtained by adjusting the hydroxyl content. Furthermore, the structure and performance of Polyurethane acrylate was confirmed by FT-IR and TG. The water absorption and adhesion of synthetic polyurethane acrylate were tested. Meanwhile, the thermal stability was studied. The results indicated that the thiol-ene addition reaction was proceeded and compared to our previous studies, the properties of cured film are greatly improved, especially the hardness and thermal stability.
Modification of Soy Protein Isolate-Polyethylene Glycol Composite Packaging Films with Ethylene Glycol
Authors: Wang Pei , Huang Zhen , Zheng Wei , Si Ma Dong
Published: January 2015

With soy protein isolate (SPI) as the main raw material, and ethylene glycol (EG) and polyethylene glycol (PEG) as two additives, a number of SPI-based films were prepared through the solution casting method. Results show that the film flexibility is obviously improved after adding EG and the film tensile strength and elongation at break could reach more than 10.5 MPa and 140%, respectively. The antimicrobial results exhibit EG has higher antibacterial effect against both bacteria ofE. coliandS. aureusthan PEG-400.
Synthesis of Silver Nanowires and its Application on Stretchable Conductor
Authors: Hou Yu Qun , Mo Li Xin , Zhai Qing Bin , Li Lu Hai
Published: January 2015

In this paper, the silver nanowires (AgNWs) were synthesized by polyol process. Then the stretchable conductor was fabricated with a simple, low cost and low energy consuming method. The testing results showed that the synthesized AgNWs were 80 nm in diameter and 3~50 μm in length. Meanwhile, the thickness of AgNWs film was discussed as an effect factor to the resistance stability of stretchable conductor. Finally, through optimizing the thickness of AgNWs film, the stretchable conductor kept relatively stable resistance when the conductor was stretched to 50 times in length. The strain sensor was prepared using stretchable conductor as electrodes showed excellent linearity under a very large strain range and the minimum detectable strain is 0.89%.
Evaluation of Device Color Gamut Description Algorithms
Authors: Jiang Yong Wen , Lin Mao Hai
Published: January 2015

A well performed gamut boundary description (GBD) algorithm is the foundation of color gamut mapping and it is also a guarantee for color management to acquire a good results. In order to get a more accurate color gamut boundary and have a intuitive view of what can be reproduced by the device, several GBDs have been presented in the past, since there is not exist a widely accept GBD evaluation method, it is difficult to choose which to use in color gamut mapping and color gamut visualization. In this paper, we propose a device GBD evaluation method based on volume rendering technique to evaluate the current presented GBD algorithms. First a dense sample of device color space is made, then those data is converted into CIELAB color space through the device ICC profile using colorimetric rendering intent, the data is then processed using volume rendering technique into voxels, those voxels which contain all the color the device can reproduced is considered as the reference gamut. Finally the device color gamuts constructed by different GBD algorithms using converted data are compared with the reference gamut using the new gamut mismatch indice.
Research on Color Reproduction Characteristics of Mobile Terminals
Authors: Liu Rong , Wang Qiang
Published: January 2015

In consideration of color reproduction requirement of cross-media reading on mobile terminals, this article takes Ipad4, Kindle, Surface and Touchpad as samples, using self-designed Digital Test Form of color characteristics for quantitative testing, and focuses on the color reproduction characteristics and application functional requirement of the mobile terminals primarily. The color rendering, color reproduction characteristics and variation of the mobile terminals based on time dimension and space dimension are obtained through experiment, which provides high reliable basics and important value for development in high-precision and high quality digital production.
Research on Visual Performance under Different Lighting Environments of LED Light Sources
Authors: Liu Yu , Miao Hong Tao , Huang Min , Liu Ai Ping , Wu Xian Yao
Published: January 2015

In order to study the LED light source illumination and the correlated color temperature effect on the human eye visual performance and physiological changes, through the comparative experiments of visual task performances under the different color temperature (3000K low color temperature, 4000K intermediate color temperature) and the different illumination (1145lux high intensity, 500lux middle intensity, 288lux low illumination), study the relationship between the biological effect and visual performance from two aspects of the visual perception performance and the physical efficiency such as blood pressure and pulse. Research indicates that color temperature 3000K or 4000K, intensity of illumination in about 500lux LED light source is suitable to visual task.
Excitation of Electromagnetic Waves in a Vircator by Radially Diverging Beam
Authors: Grigoriev Vladimir P. , Koval Tamara V. , Zherlitsyn Alexey G. , Verkhoturova Vera , Kanaev Gennady G.
Published: January 2015

This paper presents the theoretical and experimental study of the excitation of electromagnetic waves in the TEM-mode in coaxial vircator with radially divergent electron beam. Excitation of electromagnetic oscillations, emission spectrum, instability increment of electromagnetic oscillations, and formation of a virtual cathode are investigated using the kinetic equation and numerical simulation (PIC code KARAT). It was shown that the resonant interaction of the electron beam is most effectively done with the TEM-mode. The possibility of TEM-mode excitation with its subsequent transformation into TE10-mode of a rectangular waveguide has been experimentally demonstrated.
Spontaneous Radiation and Quantum Dynamics of Biological Plasma
Authors: Lasukov Vladimir , Lasukova Tatiana , Novoselov Viacheslav , Moldovanova Evgenia
Published: January 2015

A quantum solution of the Fisher–Kolmogorov–Petrovskii–Piskunov equation with convection and nonlinear diffusion is obtained which can provide the basis for the quantum biology and quantum microphysics equation. On this basis, quantum emission of biological systems, separate microorganisms (cells or bacteria), and dust plasma particles is investigated. The possibility arises of creating a generator of hard photons with energy higher than. Life on the Earth will probably need relic radiation, which might promote occurrence of life in the Universe.
Calculation and Optimization of Plasma Processes of Utilization and Immobilization of Silts in Low Radioactive LRW Storage Pools
Authors: Karengin Alexander , Karengin Alexey , Novoselov Ivan , Tundeshev Nikolay
Published: January 2015

This work demonstrates the results of the research of plasma utilization and immobilization process using model silts of liquid radioactive waste (LRW) storage pools. The silts have the form of optimal water organic inflammable compositions. Also, the possibility of the application of magnetic separation for the effective extraction of solid utilization products from water suspension is shown.
Calculation and Optimization of Plasma-Based Utilization Process of Inflammable Wastes after Reprocessing of Spent Nuclear Fuel of Closed Nuclear Cycle
Authors: Karengin Alexander , Karengin Alexey , Novoselov Ivan , Tundeshev Nikolay
Published: January 2015

This work demonstrates the results of modeling the joint utilization process of the spent solutions of tributylphosphate with hexachlorinebutadiene for extracting uranium and plutonium from a nitric acid solution of spent nuclear fuel and its processing wastes. Calculations are made for a wide range of temperature and mass fractions of air plasma coolant. Also, optimal inflammable water-organic compositions and work regimes for the practical implementation of this process in air plasma were determined.
Determination of Characteristics of the Torch Discharge Plasma Burning in a Mixture of Atomic and Molecular Gases
Authors: Lutsenko Yury , Miskun Ivan
Published: January 2015

The present article shows the results of temperature measurements of electrons and gas of the torch discharge burning in the mixture of argon and air. The study established the insignificant effect of added air on the characteristics of argon plasma and evaluated the conductivity of the plasma torch discharge burning in the mixture of argon and air.
Features of the Evolution of 4He+ Ion Flux in Yttrium Iron Garnet in the Channeling Mode
Authors: Malyutin Vasily M. , Karpov Dmitry A. , Kryuchkov Yury Yu.
Published: January 2015

The previously revealed features of orientation dependences in the experimental research devoted to the channeling of ions in the multicomponent crystals of yttrium iron garnet are the reflection of the complex structure of a crystalline material. The study incorporates the development of a numerical model describing the distribution of fast ion flux in the crystal of garnet in the framework of the binary collision theory. The model is intended for the detailed elucidation of the causes of the discovered features. The calculation demonstrated the orientation dependence features similar to those established in the experiments.
The Possibility of Quasi-Bound State Formation of η-Meson with Helium Isotopes
Authors: Tryasuchev Vladimir A. , Isaev Andrey V.
Published: January 2015

Necessary conditions of quasi-bound state formation of η-meson with isotopes3He,4He have been found within the framework of optical potential model. These conditions have been compared with the findings about helium nucleus densities and with the available information about ηN-scattering length. Thus, we have concluded that within the framework of discussed model η−3He quasi-bound state formation is not possible, but η−4He quasi-bound state formation is possible with great probability.
Coherent Radiation of Relativistic Electrons in Dielectric Fibers
Authors: Naumenko Gennady A. , Bleko Vitold V. , Soboleva Veronika V.
Published: January 2015

The possibility of using radiation of relativistic electrons in optical fibers using the properties of dielectric materials for diagnosing beams was theoretically suggested by the authors X. Artru and C. Ray. (Nucl. Instrum. Meth. B vol. 309 (2013). The aforementioned work studies the properties of various types of radiation induced in fibers by the electromagnetic field of relativistic electrons. In this paper, we present the experimental research of the influence of surface waves on the radiation propagating along a fiber. The work also investigates the properties of various types of coherent millimeter wave radiation that was induced in dielectric fibers by the electromagnetic field of relativistic electrons. The results also include the experimental analysis of nature and properties of coherent radiation in fibers, the analysis being performed for different positions of fiber in relation to the electron beam.
Effect of Hydrogen on Conductivity of Metals
Authors: Larionov Vitalii V. , Xu Shu Peng , Shi Kun , Kroning Michael X.
Published: January 2015

The work considers the application of a magnetic spectrometer (MS) for analyzing the hydrogenation of metals (particularly, titanium and copper). Therefore, for the sake of increasing the sensitivity of the magnetic spectrometer, the following ratios are introduced: (ΔU/U)/(Δd/d) (where ΔU/U is the relative change of the MS signal and Δd/d is the relative change in the thickness of a sample), (ΔU/U)/(Δδ/δ) (where Δδ/δ is the relative change in the depth of eddy current penetration into metal) and (ΔU/U)/(ΔS/S) (where ΔS/S is the relative change in the area of sample). These parameters allow to eliminate or reduce the error in determining the conductivity value. Parameter β that is equal to the product of the sample area and the inverse value of eddy current penetration depth into metal corresponds to the effectiveness of the current penetration into metal. The authors derived a formula that ties the electric conductivity of metal to the number of implanted hydrogen atoms, which allows determining the composition of titanium hydride at different depth of metal.
Coherent X-Rays Generated by Relativistic Electrons in a Tungsten Monocrystal
Authors: Adischev Yuri , Zabaev Victor , Kaplin Valery , Kuznetsov Sergey , Uglov Sergey , Ivanov Vitaly
Published: January 2015

In an experiment conducted at the Tomsk synchrotron "Sirius", the photon yield of parametric X-ray radiation generated by 500 MeV electrons in a tungsten monocrystal in Bragg geometry has been studied. The (111) tungsten monocrystal, having a thickness of 1.7 mm and a surface mosaicity of not more than 80², was oriented at the Bragg angle θB= 45°to the direction of the electron beam. The photons were detected at the angle 2θB= 90° relative to the electron beam. A comparison of PXR angular distributions with calculations has been carried out with taking into account the actual conditions of the experiment.
Generation of Mechanical Waves in Metals under the High Power Ion Beam Irradiation
Authors: Boyko Vladimir I. , Daneykin Yuriy V. , Lisov Vladislav I. , Pimenov Eduard Yu.
Published: January 2015

The system model «high power ion beam – metal» is suggested. Regularities of impulse formation of mechanical load in the volume of metal target subjected to the action of ion beams of different component composition in the range of power density 107...1010 W/cm2 have been considered. The influence of generation mechanisms on the profile and amplitude-to-time parameters of shock-wave excitation is studied.
Features of Valence Electron Density Distribution in Zr–H and Zr–He
Authors: Lopatina Oksana V. , Svyatkin Leonid A. , Koroteev Yury M. , Chernov Ivan P.
Published: January 2015

Ab initio calculations of electronic structures of Zr–H and Zr–He systems have been done. The influence of hydrogen or helium impurities on the electron density distribution of the host metal has been considered. Extremely inhomogeneous redistribution of the metal valence charge density within the first coordination sphere of the impurity was found. The character of the observed anisotropy depends on the impurity type.
Monochromatic X-Ray Source for Dual-Wave X-Ray Absorptiometry
Authors: Gogolev Aleksey , Cherepennikov Yury , Rezaev Roman , Ogrebo Andrey
Published: January 2015

This work considers the existing approaches and devices for the composition analysis of multiphase medium are considered. A new technique for analyzing three-phase mediums based on the wave dispersive analysis of radiation is proposed. The fluxes of a multiphase fluid, composite materials, etc. can act as the mediums. Preliminary estimates show that the sensitivity is about 0.25% of the oil content in water and 1% of the content of gas.
Formation of Pulses with Adjustable Parameters in a Resonant Microwave Pulse Compressor
Authors: Shlapakovski Anatoly S. , Artemenko Sergey N. , Chumerin Pavel Yu. , Yushkov Yury G.
Published: January 2015

A resonant microwave pulse compressor with a waveguide H-tee-based interference switch has been studied for its capability to produce output pulses with adjustable power, energy, waveform, and carrier frequency. Output radiation characteristics are controlled by the variation of transition attenuation of the unit of microwave energy extraction. Results of theoretical estimations of the parameters tuning range and experimental investigations of the S-band compressor are presented. The possibility of forming combined pulses comprising a microsecond prepulse and nanosecond main pulse of comparable energies has been demonstrated. It has been shown that such pulses can be applied for finding criteria levels of impact on electronics of a personal computer.
High Power Microwave Compressor with Two Output Units for Synchronous Energy Extraction
Authors: Avgustinovich Vladimir A. , Artemenko Sergey N. , Gorev Stanislav A. , Igumnov Vladislav S. , Kaminsky Valery L. , Novikov Sergey A. , Yushkov Yury G.
Published: January 2015

The compressor contains the oversized cylindrical cavity with two interference output units each in the figure of a circular waveguide H-tee. The H-tees are coupled by a waveguide section and the energy is extracted synchronously through two output ports. The synchronism is provided through using a single microwave switch mutual for both H-tees. Simulation and experimental study of the X-band microwave compressor were carried out. The simulation made it possible to optimize the configuration of the oversized storage cavity and the output element. The amplification factor was 14 dB when the energy was extracted though one output unit at the output pulsewidth of 6...7 ns. Amplification factor and the output power were increased by 2dB and the pulsewidth was decreased down to 3...3.5 ns when the energy was extracted synchronously through two output units.
Feasibility Study of Using New Fuel Composition in IRT-T Research Reactor
Authors: Naymushin Artem G. , Chertkov Yuri B. , Kurganov Vasily V. , Lebedev Ivan I. , Mongush Svetlana A. , Daneikina Natalya V.
Published: January 2015

The results of simulation of IRT-T reactor conversion from highly enriched fuel to new perspective low enriched fuel based on uranium-molybdenum alloy are given. Main characteristics of reacting core with the use of highly enriched and low enriched fuel are calculated. It is shown that impact of using new materials in fuel composition remains neutronic and thermal hydraulic characteristics of the core at an acceptable level.
Formation of the Irradiation Zone for Neutron Transmutation Doping Using the Pool-Type Research Reactor
Authors: Varlachev Valery A. , Golovatsky Alexey V. , Emets Evgeny G. , Butko Yana A.
Published: January 2015

The neutron transmutation doping (NTD) of silicon is usually used for producing different electronic devices like thyristors, VLSI, detectors, etc. This article focuses on the formation of the radiation field to create the technology for silicon NTD implementing a pool-type nuclear reactor. The works includes the analytical consideration of the conditions for achieving the high radial irradiation uniformity of silicon ingots.
Preparation of 188 W from Unenriched Targets in Middle Flux Nuclear Reactors
Authors: Pavluk Alexander O. , Chibisov Evgeniy V. , Kabanov Denis V. , Zukau Valery V. , Merkulov Viktor G.
Published: January 2015

Ways of increasing massic activity of 188W resulting from irradiation of tungsten targets in the middle flux nuclear reactor IRT-T have been analyzed. Calculation and experimental results of evaluating the influence of blocking effect on accumulation of target radionuclides are presented. The possibility to increase effective activation cross section by creating definite target shape has been experimentally proven.
Research of Possibility of Sludge Complex Recycling in Low Radioactive LRW Storage Pools
Authors: Karengin Alexander G. , Tundeshev Nikolay V. , Novoselov Ivan Yu. , Oreshkin Egor A.
Published: January 2015

In this article process of complex plasma utilization of sludge in low radioactive liquid radioactive waste (LRW) storage pools is investigated. It was also shown the possibility of effective air plasma utilization of such wastes in the form of optimal water-organic compositions with the adiabatic temperature of combustion higher than 1200 °C.
Technology for Silicon NTD Using Pool-Type Research Reactors
Authors: Varlachev Valery A. , Emets Evgeny G. , Butko Yana A.
Published: January 2015

Neutron transmutation doped silicon is an important material for electronics that is based on the conversion of30Si into31P through a30Si (n,γ) →31Si reaction taking place during the neutron irradiation and followed by the beta decay of31Si into31P. The production of such silicon requires high homogeneity. The paper describes a new facility for NTD of silicon ingots of up to 5 inches in diameter and presents the experimental results that were obtained at IRT-T research nuclear reactor.
Application of Digital Auskultometer in Radiotherapy
Authors: Aleinik Aleksander N. , Kusainov Rinat K. , Turgunova Natalia D.
Published: January 2015

With the development of science and technology electronic stethoscopes appeared that allow recording sounds and visualizing them. This article describes the development and investigation of the digital auscultometer. The results revealed that the device has a high sensitivity and resolution and will allow to diagnose the disease at an early stage.
Experimental Investigation of 99mТс-Nanotech Used for Lymph Nodes Visualization
Authors: Sinilkin Ivan , Chernov Vladimir , Titskaya Anna , Zelchan Roman , Daneikina Natalya
Published: January 2015

Measurement of colloidal particles size was performed on a NICOMP 380 ZLS. Pharmacokinetics. Radiometry of the organs was carried out on γ-spectrometer. Measurement of the sizes of radioactive particles of 99mTc-nanotech showed that average dynamic diameter of RFP particle ranged from 16.7 to 24.5 nm. 99mTc-nanotech received by the blood is actively trapped by liver and spleen. Inguinal lymph node in all animals was clearly visualized during lymphoscintigraphy on the 15th minute. Maximum accumulation of 99mTc-nanotech was observed in 3 hours. Experimental study of radiopharmaceutical 99mTc-nanotech showed that the nanocolloid can be used for lymphoscintigraphy and visualization of “sentinel” nodes.
Neutron and Neutron-Photon Therapy for Head and Neck Cancer
Authors: Gribova Olga , Musabaeva Ludmila , Choynzonov Evgenij , Novikov Valerij
Published: January 2015

The study group comprised 124 patients with salivary gland cancer and 46 patients with thyroid gland cancer who received the combined modality treatment and radiotherapy alone with the use of 6.3 MeV fast neutrons generated within U-120 cyclotron. The combined modality treatment and radiation therapy with the use of fast neutrons allow encouraging long-term results to be achieved for patients with salivary and thyroid gland cancers.
Possibilities of Radionuclide-Tomo-Ventriculorgraphy with Labeled 99m Technetium of Sodium Diphosphate Decahydrate in Assessing Mechanical Dyssynchrony of Myocardium and Intracardiac Hemodynamics in Ventricular Arrhythmias in Children
Authors: Zavadovskij Konstantin V. , Saushkin Viktor V. , Lishmanov Yuriy B.
Published: January 2015

The study was performed to identify the possibility of radionuclide tomo-ventriculorgraphy (RTVG) in the evaluation of mechanical dyssynchrony of myocardium intracardiac hemodynamics in ventricular arrhythmias in children. We examined 76 children with ventricular arrhythmias (average age 13.2 ± 3.7 years), including 16 patients before and after radiofrequency ablation procedures. All patients underwent RTVG. In patients with ventricular arrhythmias we identified zones of asynchronous contraction of the myocardium (ACM) and reduction hemodynamics with increasing intraventricular dyssynchrony. After radiofrequency ablation (RFA) there was a significant decrease in the number of ACM, improvement of contractile function and decrease of intraventricular dyssynchrony of the right ventricle.
Possibility for Application of 99mTc-Methoxyisobutylisonitrile in Assessing the Efficiency of Chemotherapy Cardiotoxicity Prevention
Authors: Chernov Vladimir , Kravchuk Tatiana , Zelchan Roman , Podoplekin Dmitriy , Goldberg Victor
Published: January 2015

The main focus of the paper is to estimate the possibility of trimethylhydrasine propionate application to prevent an acute doxorubicin-induced cardiotoxicity in breast cancer patients. The study included women with breast cancer. Main group were injected intravenously trimethylhydrasine propionate prior to chemotherapy. For the cancer treatment of these patients doxorubicin was used. All patients were examined by GATE SPECT before starting chemotherapy and 1 hour after the first administration of doxorubicin. After doxorubicin administration in the control group there was a decrease in left ventricular ejection fraction (LVEF), and an increase in left ventricular end-systolic volume. After administration of doxorubicin 40% of patients had a significant reduction in LVEF. Prophylactic use of trimethylhydrasine propionate allows reducing acute doxorubicin-induced cardiotoxicity incidences by 22.5%.
Possibility to Use the Radiopharmaceutical Based on the Gamma-Aluminum Oxide Labeled with 99mTc to Identify Sentinel Lymph Nodes in the Experiment
Authors: Chernov Vladimir , Titskaya Anna , Sinilkin Ivan , Zelchan Roman , Varlamova Natalya V.
Published: January 2015

Studying the possibility of using the radiopharmaceutical to identify sentinel lymph nodes were carried out on male rats. The preparation was injected subcutaneously in the I interfinger space of the right forelimb. Radiometry of rats’ organs showed that the studied preparation was actively accumulated in the axillary lymph node after subcutaneous injection. The experimental study of the pharmacokinetics of radiopharmaceutical based on gamma-oxide aluminum labeled with 99mTc showed that the analyzed RPP can be successfully used for lymphoscintigraphy and visualization of sentinel node starting with the 15th minute and up to the 24th hour after subcutaneous injection.
Production of Meta-Iodobenzilguanidine, 123I Preparation for Medical Diagnostics
Authors: Slamkulov Ilyas E. , Skuridin Viktor S. , Semenov Aleksey S. , Garapatsky Aleksandr A.
Published: January 2015

This paper demonstrates a method for production of the radiopharmaceutical meta-iodobenzilguanidin (MIBG) labeled with radionuclide iodine-123 (123I). An experimental installation has been developed and the conditions of solid-phase synthesis of the preparation have been described. The influence of the content of ammonium sulfate in the reaction mixture and the temperature and duration of dry synthesis on the process of labeling has been researched. It has been established experimentally that when the ratio of MIBG and ammonium sulfate is 1:4, it is efficient to carry out synthesis at the temperature of 150°C to rapidly obtain a preparation with radiochemical purity of over 97%. Biomedical tests of the synthesized preparation have been carried out in experimental animals. Its functional suitability for scintigraphic studies has been shown.
Radiocardiopulmonography with 99mТс-Pertechnetate in the Study of Pulmonary and Myocardial Hemodynamics in Patients with Chronic Heart Failure
Authors: Vesnina Zhaneta V. , Krivonogov Nikolay G. , Smirnova Ulyana A.
Published: January 2015

The article is devoted to the possibilities of radiocardiopulmonography with radiopharmaceutical "Sodium pertechnetate-Tc-99m, the extraction" produced at Tomsk Polytechnic University in the diagnostics, assessment of the severity and monitoring of pulmonary- heart disturbances in patients with coronary heart disease complicated by chronic heart failure of different functional classes.
Radionuclide Diagnosis of Breast Cancers
Authors: Titskaya Anna , Chernov Vladimir , Slonimskaya Elena , Sinilkin Ivan , Zelchan Roman
Published: January 2015

To study the diagnostic capabilities of planar breast scintigraphy and single photon emission computed tomography (SPECT) with 99mTc-MIBI in visualizing of breast tumors, 61 patients with a diagnosis of breast cancer were included in the study. The results showed that sensitivity of the planar mode in identifying primary breast tumors was 46%. The sensitivity of SPECT in detecting primary tumor was 93.4%. The sensitivity of the planar mode in visualization of nodal metastases was 44.8%, against 93.1% in SPECT. This study showed that SPECT has a high diagnostic efficiency in regard of visualization of small sized tumors, multicenter tumor growth, identifying space-occupying lesions on the background of modified breast tissue.
Single-Photon Emission Computed Tomography and 99mTc-Methoxy-Isobutyl-Isonitrile in the Detection and Forecast of Cardiotoxicity of Chemotherapeutic Agents
Authors: Chernov Vladimir I. , Kravchuk Tatiana V. , Zelchan Roman V. , Podoplekin Dmitrii M. , Goldberg Viktor E.
Published: January 2015

To compare the possibility of using multiple-gated acquisition (MUGA) scan and Tc-99m MIBI gated SPECT for evaluation and forecast of anthracycline–induced cardiotoxicity. For the treatment of these patients we used doxorubicin in combination with various drugs. All patients were examined by MUGA or Gated SPECT before starting chemotherapy, at 1 hour after the first administration of doxorubicin and after the 4th course. The MUGA and Gated SPECT can be applied with equal efficiency for evaluation of acute and chronicanthracycline–induced cardiotoxicity in patients with malignant tumors. The decrease in LVEF (10% or more) in response to the first dose of doxorubicin can predict the development of chronic cardiotoxicity.
Single-Photon Emission Computed Tomography with 199Tl in Diagnostics of Malignant Tumors of the Larynx and Laryngopharynx
Authors: Zelchan Roman , Chernov Vladimir , Titskaya Anna , Sinilkin Ivan , Chizhevskaya Svetlana , Choynzonov Evgeniy Ts.
Published: January 2015

The purpose of research was to investigate the diagnostic capabilities of single-photon emission computed tomography (SPECT) with Thallium-199 in the diagnostics of malignant tumors of the larynx and laryngopharynx. The study included patients with primary and recurrent malignant tumors of the larynx or laryngopharynx, and patients with benign diseases of the larynx. All patients underwent SPECT of the larynx after intravenous administration of 199Tl. It turned out that SPECT with 199Tl is an effective method for diagnosing laryngeal and laryngopharyngeal cancer, having indices of sensitivity, specificity, and accuracy of 95%, 100% and 96.7% respectively. According to our data, in the visualization of regional metastases the sensitivity of SPECT with 199Tl has amounted to 75%.
Use of 99mTc-HMPAO Brain SPECT in Patients with Arterial Hypertension: Correlation with Cognitive Function
Authors: Efimova Irina Yu. , Efimova Nataliya Yu. , Triss Sergey V. , Lishmanov Yuri B.
Published: January 2015

Article focuses on the use of 99mTc-HMPAO brain SPECT for evaluation of cerebral blood flow in patients with arterial hypertension and identification of the relationship of brain perfusion and cognitive function. Using SPECT of brain with 99mTc-HMPAO it was found out that hypertensive patients even in the absence of focal neurological symptoms have hypoperfusion of the brain which leads to cognitive dysfunction: decreased attention, psychomotor speed and slow thought processes.
Obtaining Hydrogen and Carbon Materials from Hydrocarbonic Gas in Microwave Plasma Discharge at Amospheric Pressure
Authors: Zherlitsyn Alekxey G. , Shiyan Vladimir P. , Zyablova Nataliya N.
Published: January 2015

This paper presents the results of a pilot study of the process of hydrocarbonic gas conversion in microwave plasma discharge at atmospheric pressure. A microwave plasmatron of the waveguide type with the power of up to 3 kW was developed and used as a plasma source. Hydrocarbonic gas is both a chemical reagent and a plasma-forming environment in this plasmatron. A peculiarity of the developed microwave plasmatron is the presence of an active system for initiating and maintaining microwave discharge in its structure. It has been demonstrated that a high (up to 70%) degree of conversion of hydrocarbonic gases can be attained in microwave plasma discharge. The products of plasmochemical reaction are hydrogen and a carbon material. The carbon material contains up to 60% of carbon nanotubes. The phase structure of the material and the cross sizes of carbon nanotubes are provided herein.