bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of UAV Oblique Photography in Scheme Design of Water Environment Comprehensive Governance
Authors: Yan Fei , Chen Rong , Gao Hongyuan , He Yixia , Chen Hong , Wang Ning 
Published: March 2021

Abstract
With the increasingly prominent problems of water ecology and water environment, regional overall planning and systematic management of water environment is a new mode of water pollution harnessing work under the background of the new era. The effectiveness of water environment governance largely depends on whether the scheme is reasonable or not. Therefore, intuitively reflecting the design results is the first step of water environment comprehensive treatment. At present, the scheme design mode of water environment governance mainly uses CAD to design and renderer to render, which can no longer fully meet the needs of design with a fixed perspective. Based on this, this paper proposes a scheme design method of water environment comprehensive treatment based on UAV tilt photography technology. Firstly, the three-dimensional model of the research area is obtained by UAV tilt photography, and then the scheme is designed based on the three-dimensional model. Finally, the scheme based on the three-dimensional model is compared with the traditional design scheme. The results show that the water environment comprehensive treatment scheme based on oblique photography has more diverse functions.
Unsupervised Detection of Sybil Attack in Wireless Networks
Authors: Tian Yinghua , Chen Song , Zhang Long 
Published: March 2021

Abstract
To address the problem of Sybil attacks in the wireless network, an unsupervised attack detection method using signal frequency bias distribution features is proposed. The method first estimates the signal frequency bias of the emitted signal of each wireless device and then calculates the signal frequency offset distribution characteristics, next it uses the DBSCAN clustering method to perform cluster analysis based on the distribution features. This method does not require prior learning of each device’s signal features and is not affected by the changing of channel status. Experiments based on the real-world environment and commercial hardware show that the proposed method can effectively detect the Sybil attack and achieve high accuracy in identifying malicious devices.
Study on Performance of Grouting Fluid Mixed with Clay-Steel Slag Powder
Authors: Qi Yinping , Wang Qingjiang , Sun Zhenzhen , Wang Xugong 
Published: March 2021

Abstract
By designing orthogonal experiments, mixing different amounts of clay, steel slag powder and polycarboxylic acid water-reducing agent into ordinary Portland cement, prepare grouting liquid according to different water-cement ratios, and analyze the grouting liquid under standard curing conditions. Fluidity and water separation. The test results show that: with the increase of the clay content, the fluidity and water separation rate of the slurry gradually increase. As the content of steel slag powder increases, the fluidity first increases and then decreases, but the overall trend is increasing, and the water separation rate increases.
Battlefield Situation Recognition Technology and Application Trend Based on Data Lake
Authors: Guo Lejiang , Tu Wenjie , Chen Fangxin , Xiao Lei 
Published: March 2021

Abstract
Battlefield situation is the basis of cognitive consistency of battlefield situation understanding. In the service of situation information organization, displaying and distribution is necessary to solve the problem of situation information difference between users at different levels and different combat tasks. Through the research of data Lake technology combined with advanced data science and machine learning technology, the situation recognition and processing architecture based on data lake is proposed to solve these problems .It includes the network architecture, the situation cognition and processing methods which can improve various types of data storage and big data processing problems.
Research on the Path of Inheriting Intangible Cultural Heritage in Northeast China through College Art Education
Authors: Jiang Xiaowei 
Published: March 2021

Abstract
The research aims to discuss the path of inheriting intangible cultural heritage in Northeast China through college art education. From the perspective of cultural protection and inheritance, the feasibility of inheriting intangible cultural heritage in Northeast China through college art education is analyzed. The specific path to inherit intangible cultural heritage in Northeast China through college art education is discussed combined with the individual practice of Changchun University, so as to build a bridge of protection and inheritance between the intangible cultural heritage in Northeast China and college art education. Inheriting intangible cultural heritage through education conforms to the needs of social development and is also an effective way to protect and inherit intangible cultural heritage. It could carry out educational inheritance by four kinds of ways of changing ideas, bringing into curriculum system, reforming teaching methods and deepening scientific research, which is of important theoretical significance and practical significance for colleges and universities to create discipline characteristics and protect and inherit intangible cultural heritage.
Effect of Power Line Type on The Safety of Transmission Tower
Authors: Xu Xiaokun , Hu Chuqi 
Published: March 2021

Abstract
The supply of electricity is directly affected by the structural safety of transmission tower. The unsuitable power line type can impose extra forces on transmission tower. The failure within transmission tower results in power outage because the designed power transmission tower cannot bear the extra force loading. In this paper, the mechanical responses in transmission tower with different power line types were calculated by means of finite element software. Commercial software Abaqus was employed for analyzing the structural safety of transmission tower. Ten kinds of power line were chosen to impose static forces on transmission tower. Based on the finite element results, the maximum stress and displacement were obtained. When the dimension of power line is less than a certain value, the transmission tower is safe; otherwise, the transmission tower may collapse.
Research on Vehicle Lubricating Oil Detection Device
Authors: Huang He 
Published: March 2021

Abstract
The existing maintenance service mode is basically “fire-fighting” after-the-event maintenance and repair. After the failure of mechanical equipment, it takes a time to report the requirement to the service personnel to achieve the success of maintenance. The consequences of sudden failure in the operation of mechanical equipment are very serious. In order to predict the operation status of mechanical equipment in advance and avoid causing heavy losses, the operation status of mechanical equipment can be predicted by testing the lubricant composition of mechanical equipment, which can effectively reduce or even avoid the occurrence of faults and accidents.
Radionuclide analysis of the National Data Centre preparedness exercise 2019 (NPE2019): Malaysian National Data Centre (MY-NDC) findings
Authors: Rashid F I A , Zolkaffly M Z 
Published: March 2021

Abstract
The National Data Centre preparedness exercise (NPE) simulates fictitious violation of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) and is regularly conducted by the National Data Centres (NDCs) for NDCs. The purpose of the exercise is to increase the NDCs’ preparedness and capabilities to perform objective analysis of possible treaty violation events. In November 2019, the NPE2019 has officially launched as a combined radionuclide and waveform scenario. The scenario started as a fictitious state named RAETIA announced a reactor incident with a release of unspecified radionuclides into the atmosphere. The simulated concentration of particulate and noble gas isotopes at several radionuclide stations had been provided as a case study. Hence, the NDCsis tasked to check the consistency with the announcements as well as to identify potential source region of such release. This paper aims at presenting MY-NDC’s radionuclide analysis findings of NPE2019. The analysis involved among others, multiple nuclide isotopic analysis, and atmospheric transport modelling (ATM). Consequently, the analysis had enabled MY-NDC to identify the potential source region of the radionuclide release as well as to discriminate the source of such release, whether coming from civil nuclear facilities or nuclear tests.
A study on UVC irradiance emitted by various types of UVGI products
Authors: Wan Yunoh Wan Syazlin , Tukimin Roha , Isa Naurah Mat , Hamzah Mohd Yusof , Halim Khairul Azhar Abdul 
Published: March 2021

Abstract
There are many types of Ultra Violet Germicidal Irradiation (UVGI) products available in the market used in many applications such as sterilization and disinfection. These products are popular during the spread of pandemic COVID-19 and become an option of disinfection method for surface and air such as in office, hospital, hotel room and car. The objective of the study is to investigate the UVC lamps of the UVGI products based on their wavelength. This is to validate whether the product samples are using UVC lamp as stated in the specification which normally has 253.7 to 254 nm wavelength. Besides that, the UVC intensity level has been measured to determine the irradiance emitted by the lamps. The measurement was carried out at various distance to see the effectiveness of the UVGI in disinfection process at different size of spaces. UVC is categorised as non-ionising radiation and has potential health effects due to excessive exposure specially to eye and skin. The equipment used for the irradiance measurement is IL 1700 radiometer with UVC sensor and the measurement data recorded in microwatt/cm2. The irradiance level of the samples was compared with the permissible exposure limit to the members of public by International Commission on Non-Ionizing Radiation Protection (ICNIRP).
Effect of lead oxide on concrete density for radiation shielding purposes
Authors: Othman Siti Amira 
Published: March 2021

Abstract
Selection of suitable shielding materials depends on the type, intensity and energy of radiation source, as well as the shielding properties such as mechanical strength, economic preparation and resistance to radiation damage. When compared to ordinary concrete, the addition of some materials with various fractions in the composition of concrete has provided concrete forms more efficient for gamma ray shielding. Concrete has proven to be an tremendous and adaptable shielding material with a well-established linear attenuation coefficient for gamma rays and neutrons. The objectives of this study is to determine the exact composition of concrete constituents and its density. Concrete samples were prepared by mixing cement, water, aggregate and additive with different composition and densities. Density was increases by decreasing the aggregates percent and increasing the additives such as lead oxide. Sample will be compacting to forming a solid material through pelleting and sintering process. Finally, it will undergo for radiation attenuation test. It was found that, substitution of lead oxide by aggregate causes increasing in the specific density and compressive strength of the concrete.
Potential use of polyvinyl alcohol (PVAL) gel materials as mammography phantoms for the detection of calcifications
Authors: Okoh Franca Oyiwoja , Yusof Mohd Fahmi Mohd , Abdullah Siti Nor Azizah 
Published: March 2021

Abstract
The study focused on the construction of phantoms made of the polyvinyl alcohol (PVAL) gel materials for mammography based on the dimensions of available RMI phantom for quality control in mammography. The PVAL gel phantoms were fabricated at 20% percentages of PVAL to water to provide target density of 1.0 g/cm3 and physical strength similar to that of human soft tissues. The calcifications were simulated by using calcium based powders at three different depths. Mammography images were obtained based on the automatic exposure control (AEC) at different compression forces. The results showed That all samples showed good visualisation of calcifications in the mammography images of all fabricated phantoms. The calcifications were well defined with no significant differences of the visualisation of calcifications in all mammography images of all fabricated PVAL gel phantoms. The results indicated the potential of PVAL gel materials to be developed and used as phantoms for the quality control works in mammography.
Effect of electrolyte concentration on the synthesis of graphene by electrochemical exfoliation process
Authors: Ilias Suhaila Hani , Murshidi Julie Andrianny , Ying Kok Kuan 
Published: March 2021

Abstract
Graphene can be produced from graphite rod of a battery by electrochemical exfoliation process in acidic electrolytes. This process is simple, safe, fast, cheap and produces graphene in large scale. Parameters to be controlled during the process are the concentration of the electrolytes and potential for exfoliation. The synthesized graphene was characterized by Raman Spectroscopy and Field Emission Scanning Electron Microscopy (FESEM). From the results, it was found that graphene synthesized with 90:10 volume ratio had better yield, lowest interlayer distance, less oxidation and minimum defect of graphene.
Effect of electron irradiation to the photocatalytic activity of the titanium dioxide fibers
Authors: Che Hak C R , Ridzuwan S , Zainal Abidin S S , Saidin N U , Ahmad Fuzi S A 
Published: March 2021

AbstractThe main crystal phase of titanium dioxide (TiO2) anatase, play the important role in the efficiency of photocatalysis. In this study, electron irradiation from 200-1,000 kGy has been used to alter the anatase-to-rutile phase ratio in TiO2particles. For photocatalytic reaction, the TiO2particles are loaded into the polymer fibers through electrospinning technique and then the ability of the fibers to photo degrade the methylene blue dye is measured. XRD analysis shows the changes in the crystal structure of the TiO2particles and the phase transformation from anatase to rutile after radiation. Morphology studies confirmed that the TiO2particles are incorporated well into the fibers and distributed homogeneously without beadings and agglomerations. The photocatalytic activity shows radiation at 1,000 kGy possess the highest degradation of methylene blue dye, resulting from the highest anatase phase content.
Analysis of radioactivity concentration in natural rubber latex and radiation prevulcanized natural rubber latex (RVNRL)
Authors: Ibrahim Sofian , Jaffary Nurrul Assyikeen Md. , Mohamed Norfaizal , Ali Hasni M. 
Published: March 2021

Abstract
Radiation vulcanization of natural rubber latex (RVNRL) is an alternative technology to conventional sulphur vulcanization. To eliminate some public members sceptical view toward the radioactivity of the prevulcanized latex produced using gamma radiation, RVNRL was prepared at several radiation doses and then their radioactivity concentration were measured using gamma counting technique. The activity concentration level of Ra-226, Th-232, and K-40 in RVNRL found to be not significantly different from non-vulcanized natural rubber latex (NRL). The reported radioactivity proved that using gamma radiation in the RVNRL preparation could not ionized and produce radioactive materials from NRL minerals. Hence, it is concluded that RVNRL is safe to be used as the main raw material in latex dipped products industry.
Evaluation of radium and caesium containment performance of palm oil fuel ash-supplemented cementitious backfill for borehole disposal: Kinetic investigations
Authors: Phillip E , Khoo K S , Yusof M A W , Abdel Rahman R O 
Published: March 2021

Abstract
Radium and caesium have been identified among the major radionuclides found in disused sealed radioactive sources (DSRSs) and these DSRSs are potentially planned to be disposed in borehole disposal. In borehole disposal, cementitious backfill is commonly used as engineered barrier for containment of radionuclides. Present study evaluates the potential use of palm oil fuel ash (POFA)-supplemented cementitious backfill to contain radium and caesium radionuclides. In this respect, kinetic investigations were carried out to understand the nature of the sorption process onto both Ordinary Portland Cement (OPC) and POFA- supplemented cementitious material. The results showed that the sorption process for both cementitious backfill materials reached equilibrium within 48 hours and 24 hours for radium and caesium, respectively. For both backfill materials, results from kinetic analysis of radium and caesium indicated that the sorption process followed pseudo-second order model thus suggesting chemisorption reaction. Meanwhile, pore diffusion and film diffusion were identified as the main mechanisms controlling the sorption process. It was also found that the sorption capacity was higher for POFA-supplemented cementitious material (6 – 60 Bq g-1) compared to OPC (1 – 44 Bq g−1) indicating valuable containment of radium and caesium by POFA-supplemented cementitious backfill.
The effect of various electrospinning parameter on preparation of alumina nanofibers
Authors: Abdillah Umar , Yazid Hafizal , Ahmad Sahrim , Makhtar Nurulizzati , Zaubidah Siti , Chen Ruey Shan , Syafiqaz Nur 
Published: March 2021

Abstract
Alumina nanobers were successfully prepared via an electrospinning technique with combination of aluminum oxyhydroxide (AlOOH) as alumina precursor and Polyvinylpyrrolidone (PVP) as the polymer precursor. To produced alumina precursor, Aluminum Isopropoxide (AIP) was dissolved in distilled water under the constant stirring process at 80°C. Electrospinning solution was prepared by mixing Aluminum Oxyhydroxide (AlOOH) and Polyvinylpyrrolidone (PVP) aqueous solution for 2 hours under room temperature. Different concentrations of polymer precursor and various electrospinning parameters such as applied voltage, distance tip to collector, and flowrate of sol-gel were studied. The as-spun fibers were calcined at 1200°C and characterized by SEM. Results showed that the average fiber diameter decreases with decreasing of Polyvinylpyrrolidone (PVP) solution concentration, increasing of applied voltages and decreasing of electrospinning flow rate. At 10%wt Polyvinlpyrrolidone (PVP) concentration with 17.5v of applied voltages and 0.03 ml/min of flow rates, calcined fibers showed an average diameter of 100-200nm.
Study the dose profile of low energy electron accelerator
Authors: Wah Leo Kwee , Azhar M. , Chulan R. M. , Hashim S. A. , Mokhtar M. , Khaidawaton  , Baijan H. , Sabri R. M. 
Published: March 2021

Abstract
This paper describes dose mapping method for Low Energy Electron Accelerator (LEEA). This locally designed LEEA with the former energy of 140 keV will be upgraded to 300 keV. In the setup, the electron beam is energized by the electric field with high voltage power supply, scanning and passing through the titanium foil, to irradiate the sample. The dose profile by the energetic beam mapping results have been obtained by using Cellulose Triacetate (CTA) dosimeter.
Big data analytics nuclear security framework
Authors: Ibrahim Maizura , Hamdan Siti Nurbahyah , Ismail Saa’idi , Haris Mohd Fauzi , Sulaiman Mohamad Safuan , Aris Sufian Norazam Mohamed , Hasan Mohd Hasnor Bin , Aslan Mohd Dzul Aiman , Ghani Nur Fatini Abdul , Hamid Amy Hamijah Ab 
Published: March 2021

Abstract
Nuclear security is defined as the prevention and detection of, and response to, theft, sabotage, unauthorized access, illegal transfer, or other malicious acts involving nuclear material, other radioactive substances, or their associated facilities. Whereas, big data analytics is denoted as a new way of collecting, analyzing large amounts of data, finding the appropriate patterns to support decision making, hence improve the action taken in solving the problems. The problem with the nuclear security system in most of the nuclear organizations and nuclear facilities in the world today is that the unintegrated data management in nuclear security systems is causing sub-optimal efficiency in the detection of malicious acts involving nuclear/radioactive materials. We argue that a big data analytics framework for nuclear security should be created and utilized to integrate all data in nuclear security systems as well as serving for needs of intelligence especially involving predictive analytics, both within organizations and inter-organization. Therefore, in this paper, we present a conceptual framework of big data analytics for nuclear security. The framework is formulated based on a holistic methodology with the aims to integrate all the data of the nuclear security systems at the organization/facilities level and national level so that the data could be analyzed to derive the appropriate patterns, hence increase the accuracy of decision making that could lead to increased efficiency of detection process and response to the nuclear security event.
Laboratory facilities for nuclear forensic investigation in Malaysian Nuclear Agency
Authors: Muhd Sarowi S. , Laili Z. , Ahmad A. , Samuding K. 
Published: March 2021

Abstract
Nuclear forensic is a new field and a key element in nuclear security in any country. The purpose of nuclear forensic investigation is to establish the history of nuclear material of unknown origin by analysing the nuclear material in the laboratories. Hence, the results of the nuclear forensic examination will provide the evidence to support law enforcement or nuclear security investigation in the country. The typical analysis used in nuclear forensic investigation is radiological assessment, physical characterization, isotope analysis, elemental/chemical analysis and traditional forensic analysis. This paper will discuss the capability of laboratories in the Malaysian Nuclear Agency and internal arrangement in handling nuclear forensic analysis.
A multi-year study of natural radionuclides Beryllium-7 (Be-7) activity concentrations in surface air in Tanah Rata, Cameron Highlands, Pahang
Authors: Rashid F I A , Zolkaffly M Z 
Published: March 2021

Abstract
The Comprehensive Nuclear-Test-Ban Treaty (CTBT) is a multilateral treaty that bans any nuclear explosions, either for military or civil purposes. The treaty is supported by an international network of monitoring stations, which inter-alia include radionuclide monitoring stations. Malaysia is a Member State to the CTBT and hosts a radionuclide monitoring station (Site code: RN42) in Tanah Rata, Cameron Highlands, Pahang. The continuous daily measurement at RN42 has created an invaluable resource for understanding variations in natural background radioactivity, including natural radionuclide, Beryllium-7 (Be-7). This study aims at assessing seasonal variations of Be-7 in surface air in Tanah Rata, Cameron Highlands, Pahang and determining its correlation with local meteorological parameters using statistical analysis. The results have been found that Be-7 activity concentration at the RN42 showed a seasonal variation and strong inverse correlation with precipitation data. The findings from this study could serve as basis for further studies on local and regional radiological impact assessment as well as for exploring the potential application of Be-7 as atmospheric tracer for civil and scientific purposes.