bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving the Phenomenological Version of Alpha Decay Energy of Heavy and Super Heavy Nuclei
Authors: Mohammed Ali Al-jomaily Firas 
Published: April 2021

Abstract
The nuclear binding energy calculated by the quark model has been used in the current research to quantify alpha decay energy (Qα- value). The research dealt with the odd-even and even - even type of heavy and super-heavy nuclei within the range (78≤ Z ≤ 118). By knowing the number of Z and N for a given nucleus, regardless of its mass, it became possible to calculate the energy of alpha decay. By correlating the experimental nuclear binding energy values of the parent nucleus and its daughters with the theoretically computed values, the quark model was adapted. Graphically extracted calibration equations have been used to produce a modern version of the alpha decay energy by linear and logarithmic matching. As essential statistical instruments, the square root rate and standard deviation were determined to show the utility of adjusted models in testing decay energy and nuclear binding energy. The analyses revealed that the experimental results have been approved.
Impact of Sintering Temperature on Crystallite size and Optical Properties of SnO2Nanoparticles
Authors: Gatea Hamed A 
Published: April 2021

AbstractTin oxide (SnO2) nanoparticles synthesized by hydrothermal method and kept at sintering temperatures (800-1200 ºC). The tin (II) chloride dehydrate (SnCl2.2H2O) used to prepared the SnO2precursor solution. The Tin oxide nanoparticles have been characterized by X-ray diffraction (XRD), Field emission scanning electronic spectroscopy (FESEM), and UV-Visible spectroscopy. The nanoparticles size of SnO2depends on the degree of sintering temperature, it found crystallite size (22.12,27.34 , 36.11 and 42.02) nm of the SnO2at800, 900, 1000 and 1200°C, respectively. XRD shows a pure tetragonal rutile crystalline structure for SnO2nanoparticles. FESEM images revealed the particles size increased with increasing sintering temperature. The transmittance and absorption are affected by an increased degree of sintering temperature. The band gap of SnO2nanoparticles decreased with increasing sintering temperature (2.6 to 2.4) eV when temperature raised from 800 to 1200 ºC, which belongs to the effect of particle size
FPGA based area-power-performance analysis of LMS filter using conventional and proposed multipliers
Authors: Pathan A , Memon T D , Sohu F Khan 
Published: April 2021

Abstract
This paper compares LMS filter-based adaptive channel equalizer, implemented on Vertex 7 FPGA using several existing and proposed multipliers. The three main performance parameters taken into consideration are the consumed resources (in terms of lookup tables), utilized power (among various design components), and the performance achieved (in terms of observed frequency). The results show the area-power-performance tradeoff amongst the conventional and proposed multipliers based designs. It is to mention that the proposed multipliers result in more compact systems due to less utilization of resources in all means.
A Review of Cyber Security Assessment (CSA) for Industrial Control Systems (ICS) and Their Impact on The Availability of the ICS Operation
Authors: Bonandir Nor Afiq , Jamil Norziana , Nawawi Md Nabil Ahmad , Jidin Razali , Rusli Mohd Ezanee , Yan Lam Kwok , Maudau Loviana Lenyu Anak Dunstan 
Published: April 2021

Abstract
The equipment in industries in this digital age is controlled by systems connected via internet either wired or wireless connectivity. This technology is demanded in almost all organizations to perform their daily industrial operations. Hence, the system must run without any failure and the rate of system availability is a priority. Most importantly, the entire system must be secured from cyber security threats, vulnerability, and risks so as to ensure that the system is not exposed to the possibility of any cyber attack. Thus, initial security assessment must be conducted to ensure the security aspect of the system. Nevertheless, the evaluation shall not impact the system’s regular operations. As such, the study reviews and discusses the Cyber Security Assessment (CSA) for Industrial Control Systems (ICS) and their possible effect on the availability of ICS operations.
A Systematic review of Multi-Mode Fiber based on Dimensional Code in Optical-CDMA
Authors: Ghazi Alaan , Aljunid S.A. , Idrus Syed Zulkarnain Syed , Rashidi C.B.M , Al-dawoodi Aras , Mahmood Baban A. , Fareed Alaa , Zaenal Mohammed U. , Qasim Nameer Hashim , Rafeeq Ranjdr M. 
Published: April 2021

Abstract
This paper deals with optical code division multiple access (optical-CDMA) and provides a general analysis of multi-mode fiber (MMF). The purpose of this work is to classify the works in the literature that are related to Optical-CDMA based on MMF and to find the limitation of the researches done in this field. Several challenges that occur in the medium such as multiple-access interference (MAI), pulse dispersion (PD) and nonlinearity in optical fibers deteriorate system performances and become a major performance-limiting factor.
Ecology of kazakhstan: problems and ways of their solutions
Authors: Zh Sapanov S , Zhumabayeva K ZH , Makasheva K N , Kairgaliyeva G , Nigmetov B S 
Published: April 2021

Abstract
This article discusses the environmental problems in Kazakhstan, including the problem of the Aral Sea and the reasons which led to such consequences. Also the solutions were proposed, which require close cooperation between the countries. The issue of the international specialized exhibition EXPO 2017 to be held in Astana, devoted to energy future is raised. The article describes the history of such international exhibitions held in Kazakhstan. The main points of the Strategy “Kazakhstan – 2050” the program of N.A. Nazarbayev, the President of the Republic of Kazakhstan, relating to the topic of this article. The importance of environmental education in the modern world was marked.
Antioxidants and Characterization of Stability and Organoleptic Properties of Cocoa Facial Mask
Authors: Gani Siti Salwa Abd , Abd Halim Alyaa Nurathirah , Zaidan Uswatun Hasanah , Effendi Halmi Mohd Izuan , Abdul Wahab Norliza 
Published: April 2021

Abstract
Beauty products plant based are getting increasing interest from users and the cosmetic industry. Cocoa liquor is a natural source of antioxidants from (Theobrama cacao L.) cocoa beans, with potential health benefits. The present study was conducted to determine the stability of cocoa facial mask in different temperature, the durability of CFM in extreme high and low temperature and the prospect of integrating CFM offers additional skin defence capability by eliminating free radicals from the environment. CFM shown stabled with different storage conditions. The amount of ferric ion reducing power (FRAP) in CFM was evaluated by the reduction of ferric-TPTZ to blue ferrous-TPTZ color, while β-carotene linoleate bleaching (β-CB) assay were determined by using β-carotene emulsion. FRAP and β- carotene recorded values of 252.31 ± 0.001 mmol Fe2+/g and 83.42 ± 0.03%, respectively. The EC50 of β-carotene linoleate bleaching (β-CB) reported at 2.92 ± 0.03 mg/mL. The results suggest that CFM is a potential source of phytochemicals. The study presents scientific validation on its phytochemical contents showing presence of bioactive compounds with nutritional and therapeutic values which may have positive impact on skin health and suggesting its prospective use in value-added products such as skin care cosmetics.
Research on Citizen Participation of Public Information Service Platform Amidst the COVID-19 Outbreak in China
Authors: Tong Q W , Abas H B , Yang X D , Yusoff R C M 
Published: April 2021

Abstract
Facing the global epidemic prevention and control situation, public information services are an important part of ensuring the smooth operation of the government and the normal life of citizens. Among them, Internet companies assume a significant part in assisting with uncovering epidemiological information, such as the “same journey query” platform that can query the public transportation itinerary of patients with pneumonia suspected diagnosis. Citizens can understand their health status and make independent declarations to avoid the spread of immunity. To better understand the requirements, willingness, and elements impacting citizen participation, this study constructs a citizen participation model based on the public service system, combined with the Chinese government’s public information interactive management process. Through empirical analysis of the survey data, it is discovered that expectations and perceived quality are the key factors that can significantly affect public participation. It can be concluded that improving the quality of the platform and public expectations will help increase public satisfaction and trust, and ultimately increase public participation. The result is conducive to the better participation of enterprises, governments, and citizens in public information services, and gives insight to future related research.
Calculation of the efficiency of electrically small MF antenna for mine communications
Authors: Kolesnikov A V , Fedosov D V , Nikolaev A V 
Published: April 2021

Abstract
Today, the developers of electrically small antenna equipment are faced with the problem of reliable modeling of electrically small antennas. The existing methods of computer modeling of electrically small antennas, as experience has shown, are resource-intensive. One of the ways to solve this problem is to use the method of replacing the antenna with an equivalent electrical circuit. This method is based on the assumption that any part of the antenna can be replaced by equivalent values of inductance, capacitance or active resistance, which can be investigated together with the elements of the tuning and matching circuit. The resulting equivalent electrical circuit can be analyzed by the methods of the theory of electrical circuits, and most of the antenna characteristics of interest to the developer can be determined. These include efficiency, quality factor, frequency dependences of impedance and voltage standing wave ratio (VSWR). In this work, a sample of an electrically small resonant medium frequency (MF) antenna and its equivalent circuit are presented, and its characteristics are analyzed using the theory of electrical circuits. The graphs of the dependence of the efficiency on the frequency at the resonant tuning of the antenna are plotted.
Parametric optimization of the cables with the modal filtration effect
Authors: Belousov A O , Vlasova N O 
Published: April 2021

Abstract
The work presents the results of simulation and optimization of multiconductor modal filters with a circular cross section. Four 2–5 conductor structures with a circular cross-section were considered. Optimization was performed according to the amplitude and time criteria. As a result, a complete decomposition of the exciting interference signal was achieved in all structures with a maximum attenuation of 4.18 times.
Closed-loop power supply for an autonomous object with a DC power transmission line and voltage drop compensation
Authors: Chekh V , Rulevskiy V , Pravikova A , Lyapunov D 
Published: April 2021

Abstract
The paper considers a closed-loop power supply for an autonomous object that is operated remotely. The power to the object is delivered via a direct current (DC) power transmission line representing a three-wire cable. The length of the cable is considered to be 8 km. The model in MATLAB Simulink has been created to investigate the essentials of the power supply operation and adjust the voltage controller. To compensate the voltage drop across the cable (over 500 V) the current signal correction was introduced. This correction proved to be a reliable method to provide a stable load voltage of 1200 V±2% in steady-state operating modes of electric equipment within the autonomous object structure. This will significantly enhance the overall performance of the equipment that is placed on the considerable distance from the power supply.
Development of a behavioural model of the MEMS accelerometer
Authors: Lysenko I E , Sevostyanov D Y , Ezhova O A 
Published: April 2021

Abstract
This article presents a method for deriving the transfer function for the developed design of a micromechanical accelerometer. A behavioural model of the MEMS accelerometer has been developed taking into account its dynamic and static properties. The obtained simulation results confirm the reliability of the constructed model. For example, under the influence of 5g acceleration, the movement of the sensitive element is 0.9 µm. Reducing the natural frequency increases the stroke of the sensitive element by 0.5 µm.
Improving the criteria for quality assessment of image processing algorithms
Authors: Dubinin D V , Kochegurov A I , Geringer V E 
Published: April 2021

Abstract
Quality criteria are the essence of a measurement system. The goal of assessing the quality of software elements (algorithms) used for image processing is to ensure control of technical performance indicators of the system as a whole or its individual functional units under the reduction of costs associated with minimizing the loss function (tuning and debugging). The correct choice of individual metrics for the generalized quality indicator to solve tasks in a particular subject area is one of the key steps in system optimization. It ensures the most flexible approach to testing the developed software elements, identifying and eliminating their functional shortcomings. At the same time, we can say that in this way the generalized indicator of the entire system (its goal function) is optimized.
Application of the Schottky diode as a detector of continuous terahertz radiation
Authors: Badin A V , Moskalenko V D , Pidotova D A 
Published: April 2021

Abstract
The results of research of the electrophysical and frequency characteristics of the semiconductor structure of a Schottky diode based on gallium arsenide are presented. The diode structure was modelled in the Sentaurus TCAD software package. A comparison of the current-voltage characteristics obtained by mathematical modeling and by experiment are presented. The frequency response in the range of 115-257 GHz is shown. The use of a Schottky diode as a continuous terahertz radiation detector is shown.
Quasi-static analysis of a two-conductor modal filter with a thin passive conductor
Authors: Zhechev Y S , Zabolotsky A M , Gazizov T R 
Published: April 2021

Abstract
The paper presents the results of the quasi-static analysis of a two-conductor modal filter with a thin passive conductor. The geometrical parameters of the structure under investigation were optimized using a genetic algorithm. The authors performed the quasi-static simulation in the time domain with and without losses. It revealed that with a significant reduction in the thickness of the passive conductor it is possible to preserve or improve the electromechanical properties of the modal filter. The authors showed that in the proposed configuration the difference of per-unit-length delays increased from 0.43 to 0.93 ns, and the maximum output voltage decreased from 501 to 498 mV.
Protective holster for firearms
Authors: Kotilevets I D , Ivanova I A 
Published: April 2021

Abstract
At the moment, the information development of modern society is increasingly associated with the expansion of the influence of the Internet of Things, however, there are quite specific areas that require special attention. One of these areas is firearms. In this area, there is a problem of monitoring and controlling the circulation and use of weapons. This article discusses examples of Informatization of firearms. The article also suggests the development of a software and hardware complex in the form of a prototype holster for firearms.
Designing a low-mass, high-current modal filter for the spacecraft power bus
Authors: Kosteletskii V P , Zabolotsky A M , Gazizov T R 
Published: April 2021

Abstract
The paper presents the results of a quasi-static simulation of a modal filter with a reduced cross-section of conductors that are conducting a significant current. Time characteristics in differential and common modes are considered. The dependence of the attenuation coefficient on the thickness of the conductors is shown.
Studying the structures of modal filter with circular reflection symmetry
Authors: Chernikova E B 
Published: April 2021

Abstract
The paper considers the protection of radio-electronic equipment (REE) against ultrashort pulses (USPs) by using the symmetry to decompose a USP into a doubled number of pulses with half as small amplitude. For the first time, we performed a quasistatic simulation of the time response of a 4-conductor and 8-conductor MFs with circular reflection symmetry. It is shown that these MFs are able to decompose the USP into a sequence of pulses of smaller amplitude. However, in order to obtain the required attenuation level, additional optimization by several criteria is required.
Continuous terahertz wave imaging of microelectronics objects
Authors: Berdyugin A I , Badin A V 
Published: April 2021

Abstract
The results of using a terahertz imaging system for microelectronic flaw detection are presented. The distribution of the transmitted radiation through the plastic leaded chip carrier microchip at frequencies of 206 and 806 GHz is obtained. The possibility of using quasi-optical systems with a continuous terahertz radiation source for microelectronic flaw detection has been evaluated.
Time-dependent non-Hermitian systems: pseudo-squeezed coherent states
Authors: Elaihar Lamine , Koussa Walid , Bouguerra Yacine , Maamache Mustapha 
Published: April 2021

Abstract
We introduce a pseudo-squeezed bosonic ladder operator defined as a time-dependent non-Hermitian linear invariant and related to their adjoint operators via the bounded Hermitian invertible operator or metric operator. In fact, they are obtained from the squeezed transformation of the pseudo-bosons annihilation and creation operators. Thus, the pseudo-bosonic squeezed coherent states are just obtained as pseudo-displacement operator method acting on the ground pseudo-squeezed state. To our knowledge, the time-dependent pseudo-squeezed coherent states have not been constructed until now. As an illustration, we study the time-dependent non-Hermitian displaced harmonic oscillator, and the properties of these states are analysed with respect to the localization in position and to uncertainty principle.
On universality of homogeneous Euler equation
Authors: Konopelchenko B G , Ortenzi G 
Published: April 2021

Abstract
Master character of the multidimensional homogeneous Euler equation is discussed. It is shown that under restrictions to the lower dimensions certain subclasses of its solutions provide us with the solutions of various hydrodynamic type equations. Integrable one dimensional systems in terms of Riemann invariants and its extensions, multidimensional equations describing isoenthalpic and polytropic motions and shallow water type equations are among them.
Synthesis and Characterization of K2SiF6 Hexafluorosilicate
Authors: Singh Vartika S. , Moharil S.V. 
Published: April 2021

Abstract
Hexafluorosilicates such as K2SiF6 (Hieratite) exists in nature as minerals. The common formula is M2SiF6 where M represents alkali ion. All the alkali fluorosilicates including K2SiF6 decomposes in the temperature range of 300 to 700 °C with SiF4 as residual product. SiF4 has an important application in the solar cells fabrication industry. Due to low thermal stability, it is difficult to prepare these complex fluorides by the conventional methods. Hence, a one step simple wet-chemical route was adopted. Confirmation of successful precipitation of K2SiF6 during our process of synthesis was done by using various analysis techniques. Results obtained through XRD, EDAX and SEM measurements are reported and discussed here in brief.
A review on exergy analysis of ejector refrigeration system
Authors: Verma Sameer Kumar , Kumar Satyajeet , Sachdeva Gulshan 
Published: April 2021

Abstract
Owing to the human comfort, the utilization of refrigeration system has increased nowadays. In today’s scenario, the air conditioning system has led to the innovative changes in the lifestyle of human beings. The Heat driven ejector refrigeration machine is a favorable alternative to a compression based refrigeration system for the point of view of minimizing energy utilization. As Exergy is directly related to the second law of thermodynamics and the system performance can be only evaluated on the basis of this thermodynamics law. On the basis of efficient performance, it has been concluded that good quality of ejector is more performance oriented rather than other components like condenser, generator and evaporator. This paper presents the idea of ejector refrigeration systems, its exergy analysis and working fluids used. It profoundly investigates the ejector technology and behaviour, exergy analysis, properties of refrigerant and its effect on the ejector refrigeration system.
Performance analysis of ERS using R134a - An experimental investigation (Part 3) – Experimental results
Authors: Kumar Vikas , Tiwari Sandeep , Sachdeva Gulshan , Jain Vaibhav 
Published: April 2021

Abstract
The paper presents the experimental results of the ERS using R134a as a refrigerant. The performance analysis of the single-phase ejector is already analysed in the previous research paper of the series. Additionally, the design and dimension of the ERS is also calculated by the second research paper of the series. In this paper, the experimental results of the fabricated experimental setup are presented for various operating conditions.
Review of Recent Advancements Made In Flexible Energy Storage Devices
Authors: Kumar H , Kumar K , Bhardwaj H K 
Published: April 2021

AbstractThere are unlimited potentials have been seen in the fields of condition health monitoring, wearable consumer electronics and human motion tracking for the design of soft exosuits. Energy storage devices are the key element in all above mentioned fields, which can be of high capacitance, light weighted and flexible too. Fiber based supercapacitors are based fit to these. In last few decades’ different kind of fiber based supercapacitors have been developed, among them carbon nano-tube (CNT) based fiber electrodes showed that their capacitance, energy density and cycle life is higher as compared to conventional wire based electrodes. In this paper our aim is to review the advances made in the field of different type of fiber basedsupercapacitors.
Integral Sliding Mode Controller Design for the Global Chaos Synchronization of a New Finance Chaotic System with Three Balance Points and Multi-Stability
Authors: Vaidyanathan S , Hutapea H M , Feng B , Sambas A , Mamat M. , Subiyanto  , Renaldi F 
Published: April 2021

Abstract
This paper conveys new results of a new finance chaotic system with three unstable balance points of which one balance point is a hyperbolic saddle while the other balance points are saddle-foci. The new finance chaotic system involves three nonlinearities of which one is quadratic, the other is quartic and the third is absolute function nonlinearity. As an application of the new finance chaotic system, integral sliding mode control is invoked to achieve synchronization of master-slave finance chaotic systems. MATLAB simulations are carried out to explain the main results of this research report.