bluuebunny/crossref_metadata_2025_split huggingface dataset:
Shallow gas detection and data transmission in the formation
Authors: Zheng Junjie , Jia Shengyao , Li Qing 
Published: March 2020

Abstract
In recent years, with the proposal and implementation of national marine strategy, more and more marine engineering facilities are being developed. All marine engineering construction is bound to be inseparable from marine geological survey, and the existence of shallow gas in the stratum is also a big invisible danger in the engineering. Therefore, this study used waterproof and breathable film to separate the shallow layer of gas, then measured the methane concentration with infrared methane gas sensor and sent the formation information measured by CPTU probe the data acquisition module through the electromagnetic wave wireless module. Finally, all measured values are transmitted to the ground via a cable.
Experimental Study on Shearing Strength of Sand Pebble in Southeast Tibet
Authors: Liao Guangchen , Wei Jianfei , Xiang Rui , Wang Peiqing 
Published: March 2020

Abstract
In order to study the shearing strength characteristics of sandy pebble soil in southeast Tibet, this paper takes the sandy pebble packing of high road embankment of lalin high grade highway as the research object, and conducts particle analysis test on sandy pebble soil. On the basis of natural gradation, sand pebble soil was gradated and improved. In this paper, the undisturbed sand pebble soil and sand pebble soil with improved gradation were tested by direct shear tests under different vertical pressures.The results show that the stress-strain relationship of sandy pebble soil is mostly strain softening. The sandy pebble soil shears first,dilatancy occurs after,and the whole presents obvious dilatancy.The natural sandy pebble soil all has the phenomenon of grain deficiency,the shear strength of natural sandy pebble soil was improved by gradation. With the increase of the percentage of soil particle mass with a particle size of 20mm-60mm, the shear strength of sandy pebble soil increases accordingly. The physical and mechanical properties of sandy pebble soil was analyzed in this paper, which provides technical reference for the high embankment filling project in southeast Tibet.
Pavement Icing Forecasting Based on Long Short-Term Memory Network
Authors: Liu Wenjiang , Rao Zhongyang 
Published: March 2020

Abstract
In this paper, a method Long Short-Term Memory (LSTM) Network is proposed for road icing prediction in city road. Having attracted attention worldwide, pavement icing is considered to have detrimental effects on the traffic. Forecasting performance of pavement icing, thus, becomes an important issue for the traffic. In this research, we attempt to use a deep learning method to forecast pavement icing on Ji’nan in China. The LSTM of deep learning is used to build a major prediction model. LSTM can process and memorize the sequential data such as data concerning pavement icing in a given period of time. The experimental results show the performance on the models is very accurate. In addition, the sequential data on road icing prediction problem used by LSTM with memory model outperforms without memory operation.
Two-dimensional evacuation model under the influence of multiple factors
Authors: Wang Ke’ao 
Published: March 2020

Abstract
At tourist attractions with large crowds, we have to consider evacuating large Numbers of pedestrians due to an emergency. This paper discusses the evacuation of tourists in emergency, analyzes the possible bottlenecks, and establishes a relatively complete evacuation plan. We considered that although the place is a three-dimensional model, in a certain stage of the evacuation process, each floor is independent of each other, and individuals on different floors do not influence each other. Therefore, according to the fuzzy cellular automata (FCA) model, we adopted the modular processing method to establish the two-dimensional evacuation model initially. First, we established the movement speed and time model of tourists, then introduced obstacle reference factor, direction reference factor and control factor to modify the direction selection of tourists, so as to carry out orderly evacuation.
A Summary of the Significance of Soil Materials Research on Land Ecologicalization
Authors: Niu Yan , Peng Biao 
Published: March 2020

Abstract
With the development of human society, a large number of land problems have emerged. These land problems seriously endanger human health and the ecological environment. Land engineering is based on solving land problems. The core is the study of soil organic remodeling. A key research direction of soil organic remodeling is material research. It can provide necessary support for the harmonious development of human-land relations and land ecologicalization.
Impossible Differential Cryptanalysis of Surge
Authors: Qu Zhiqiang , Shen Xuan , He Jun 
Published: March 2020

Abstract
In 2018, Li Lang et al. proposed a new lightweight block cipher which is called Surge. Its block size is 64-bit, and the length of key size is 64/80/128-bit, respectively. They also proved that the cipher has good performance on security and effectively resists on differential attack, linear attack and algebraic attack. In this paper, some 4-round impossible differentials are constructed with the miss-in-the-middle method. Furthermore, 6-round impossible differential attacks are proposed on Surge- 64/Surge-80/Surge-128 algorithms based on the 4-round impossible differentials. The data complexity of the attack is 238/239/239.5 chosen plaintexts, the time complexity is 251.4/251.7/260.9 6-round encryptions, and the storage complexity is 240/240.1/249 storage units. This is the first time to make the impossible differential cryptanalysis for Surge.
Design of Spatial Posture Measurement System Based on Camera Perspective Projection Model
Authors: Dai Hailin , Wang Wei , Meng Fanwei , Dong Que 
Published: March 2020

Abstract
Aiming at the requirement of high precision, fast speed and high safety and reliability in ground zero gravity test of space mechanism, the design principle and system composition of space position and attitude measurement system based on camera perspective projection model are elaborated in detail, which effectively reduces the hardware failure rate and meets the requirements of space mechanism products. Interview test requirements.
Effect of Halogen Free-flame Retardants on The Mechanical and Morphological Properties of Kenaf/Polyurethane Foam Composites
Authors: Mohd Soberi Nur Suhaili , Rozyanty R , Zainuddin Firuz , Amini Hazim Mohamad 
Published: March 2020

Abstract
Kenaf/polyurethane foam (PUF) was synthesized form PUF and kenaf core fiber with expandable graphite (EG) and aluminum hydroxide (ATH) at varying amounts. In the production of polymer foam composites, the processing methods determine the properties of the final products. In this work, the potential of high energy milled on EG has reduced the EG platelet size to improve its dispersion in PUF matrix. From the results obtained, PU/KF/6ATH/10EG shows the highest mechanical properties, i.e. modulus and compression strength, while PU/KF/2ATH/5EG shows the lowest mechanical properties. Scanning Electron Microscope (SEM) shows the effect of adding kenaf fiber, EG and ATH in PUF to the foam cell structure and size.
Corrosion Resistance of Micro-Textured Surface Modified Alumina-Titania Coating
Authors: Wahab J. A. , Ghazali M. J. , Derman M. N. 
Published: March 2020

Abstract
Effect of micro-texture on the corrosion resistance of alumina-titania coated mild steel was investigated. The micro-texture was fabricated on the coating surface via laser surface texturing technique. Tafel extrapolation and immersion test was conducted to measure the corrosion resistance and corrosion mechanism of the coating in 3.5% NaCl solution. The results indicated that the micro-texture contributes to a significant improvement of corrosion resistance due to the formation small volume of air trapped in the micro-grooves, which resist the penetration of corrosive ions and reduce the area of solid – liquid interface. The WCA indicated that the textured surface had low wettability. The SEM analysis showed the occurrence of uniform corrosion. The analysis of EDS revealed that there was formation of corrosion product at the coating-substrate interface. In short, the resistance towards corrosion was increased up to 73% indicating that the resistivity of the coating against corrosion was improved by engraving the micro-texture on its surface.
Influence of Different Materials on the Mechanical Aspects in the Design of Cyclone Gasifier
Authors: Khor C. Y. , Nawi M. A. M. , Ishak Muhammad Ikman , Wei Z. X. , Rosli M. U. 
Published: March 2020

Abstract
Cyclone gasifier is used as the energy conversion system for the biomass. The design and material selection for the cyclone gasifier is important, which affect the strength of the gasifier during the operation. This research aims to investigate the effect of the various materials to the mechanical aspects (i.e., stress, strain and displacement) of the cyclone gasifier. The mechanical aspects analysis is carried out by using the finite element (FE) based software. The stress, strain and displacement of the cyclone gasifier’s structure was analyzed for various stainless steel materials (i.e., ferritic (FSS), AISI 316, 1023 CSS, 201 ASS and AISI 4130). The finite element analysis revealed the use of 201 ASS experienced highest stress (221 MPa). Lowest strain and displacement were found on 201 ASS and 1023 CSS, respectively. These research findings are expected to be used as the reference for the engineer in the material selection process for the design and fabrication of cyclone gasifier.
Experimental and computational evaluations of the mechanical stresses of banana trunk fibre-reinforced epoxy resin composite in coffee table application
Authors: Ishak Muhammad Ikman , Rosli M U , Khor C Y , Ismail C N , Nawi M A M 
Published: March 2020

Abstract
The banana plant including the trunk is normally disposed after it has produced fruits once in its lifetime and becoming unproductive. Herbicide injection and burning using kerosene are the examples of current disposing method. Those methods are unfavourable owing to bad effects to the environment. Therefore, the unproductive banana trunk through its fibre properties, has a high potential to be used as composite in saving the environment. Three tensile test specimens were prepared with two of them have different length of banana fibres – shorter and longer than 0.5 mm, whilst another specimen has no fibres. The elastic modulus, Poisson’s ratio, and vertical load of 2 GPa, 0.3, and 981 N, respectively, were applied towards numerical models. The results exhibited that the composite with short banana fibre length promoted encouraging maximum and break stress values. Besides, the properties of the composite are well appropriate to be applied in furniture making as satisfactory stress value recorded in the computational analysis.
Synthesis and Characterization of Fly ash based Geopolymer Ceramics: Effect of NaOH Concentration
Authors: Ahmad Romisuhani , Wan Ibrahim Wan Mastura , Bakri Abdullah Mohd Mustafa Al , Sandu Andrei Victor , Mohd Mortar Nurul Aida , Hashim Noratikah , Ahmad Zailani Warid Wazien 
Published: March 2020

Abstract
Ceramic materials have demonstrated impressive performance under severe conditions in a wide number of areas including health, energy and environment, transportation and electronic applications. In order to meet the growing demand of specific properties of ceramics, the use of geopolymer method were introduced as an alternate way by providing new material to fabricate geopolymer as ceramic precursor and moving towards green technology. Geopolymer ceramic was produced using fly ash as source materials. Different molarities of sodium hydroxide solution in the range of 8 M to 14 M were used in the preparation of fly ash geopolymer ceramic. The ratio of fly ash/alkaline solution and alkaline activator were kept constant at 2.0 and 2.5 respectively. Physical and mechanical properties such as density, flexural strength and shrinkage were determined. The optimum flexural strength of 61.6 MPa is obtained at the sodium hydroxide concentration of 12 M with the density of 2.21 g/cm3. The formation of almost fully crystalline phase with appearance of albite contribute to the flexural strength of fly ash geopolymer ceramic. Microstructure image result shows that a presence of pores due to sintering effect and smoother matrix which gives denser structure as supported by the excellent density.
Analysis on Gold Nanorod Interdigitated Elecrtrode Sensor Using Simple Photolithograpic Process
Authors: Adam Hussaini , Subash Gopinath C. B. , Uda M. N. A. , Hashim Uda , Adam Tijjani , Afnan Uda M. N. 
Published: March 2020

Abstract
With the higher demand of preventative healthcare in order to minimize costs and improve healthcare systems, the development and enhancement of sensor technology is vital. It is essential to develop a diagnostic device that can minimize time and lower task in testing, and can effectively reduce manufacturing and delivery costs because of portability of its designs. Here, we briefly describe the fabrication of aluminum interdigitated electrodes and deposition of gold nanorod on the fabricated microelectrode that can detect changes on the modified surface of the aluminum interdigitated electrode. Electrodes made from aluminum was employed for the fabrication because it is the most widely used electrode. Gold nanorod was deposited on the desired surface in order to enhance an enzymatic Response. The use of gold nanorod also enhances the sensitivity of detection due to the decrease of the thickness of probed zone. A simple and facile method for the deposition of gold nanorod colloid was described via a simple photolithographic technique on the interdigitated electrode (IDE). The gold nanoparticles pattern deposition on IDE was investigated by high power microscope (HPM), 3D Profilometer, and atomic force microscope (AFM).
New Development Quantification Methods for Salt Iodine and Urinary Iodine Using Microfluidics Based Nanotechnology
Authors: Ibrahim Nur Hulwani , Salimi M. N. , Uda M. N. A. , Parmin N. A. , Hashim Uda , Afnan Uda M. N. 
Published: March 2020

Abstract
In Malaysia, the first Iodine Deficiency Disorders (IDD) survey was conducted in 1996 and it was discovered that Peninsular Malaysia did not have IDD problem until latter studies showed goitre occurrence of 34.7% in Hulu Langat district and urinary iodine lower than the adequate level of (100-199 ug/L) in Perak and Pahang states (Selamat et al., 2010). Baseline and periodical sampling of children and pregnant woman urine and imported salt commodities for the consumption of the population is mandatory for iodine measurement. Thus, development of quantitative methods of measurement of salt and food iodine is crucial for implementation of the USI program nationwide. In this study, interdigitated electrode (IDE) biosensor, a rapid, sensitive and selective method has been developed to determine the iodine content in both urine and salt. This method includes functionalization and silanization step using 3-aminopropyl triethoxysilane (APTES). The I-V characterization of IDE biosensor was performed using (Keithley 2450), Kickstart software and Probestation. It measures the amount of current flow through IDE which is directly proportional to the concentration of iodine in both urine and salt. Hence, IDE biosensor is proven to be a rapid, selective, sensitive method and can be developed as a new nanotechnology for the elimination of Iodine Deficiency Disorders (IDD) among children and pregnant woman.
Development of Voltage Amplifier Electronic Reader for Multiplex Detection of Two Electrode Electrical Biosensors
Authors: Afnan Uda M. N. , Jambek Asral Bahari , Hashim U. , Uda M. N. A. 
Published: March 2020

Abstract
Amperometric electrical biosensors have small current variations at nano to micro range. There are limited number of electrical based two electrode electronic readers for biosensors are commercial available because of the amplification and noise issues at nano to micro ampere current range. The electronic reader focused on design a voltage amplifier circuit to capture and amplify three different range of current as nano, micro and mili ampere and convert it to detectable voltage range as an output voltage signal. Current input as nano, micro and mili current were flown through 10 K Ω, 10 Ω and 10 m Ω resistors, respectively to convert different current inputs to the similar range in micro voltage. Then, MAX 4238 op-amp IC was used to amplify micro voltage to mili voltage. Arduino Uno circuit was act as the process and control circuit to read the output voltage from the amplifier circuit. Arduino Uno circuit will convert analog signal to digital signal and then the output voltage value is display in the LCD screen. The Proteus 8 Pro software was used to design, simulate and calibrate the amplifier circuit and Arduino Uno circuit. While, Arduino software was used to create a programming code and to upload in Arduino Uno circuit. Start your abstract here.
Nano-micro-mili Current to Mili Voltage Amplifier for Amperometric Electrical Biosensors
Authors: Afnan Uda M. N. , Parmin N. A. , Jambek Asral Bahari , Hashim U. , Uda M. N. A. , Shaharuddin S. N. A. , Adam Hussaini 
Published: March 2020

Abstract
Amplification of nano and mircoampere electrical signal to the detectable range is essential in the biosensor field. This research is mainly focused on design an amplifier circuit to capture and amplify three different range of current as nano, micro and mili ampere and convert it to detectable voltage range as an output signal to the processing circuit. The Proteus 8 Pro software was used to design, simulate and calibrate the amplifier circuit. Firstly, current input as mili, micro and nano current were flown through 0.1 mΩ, 10 Ω and 10 KΩ resistors, respectively to convert different current inputs to the similar range in micro voltage. The MAX 4238 opamp IC was used to amplify micro voltage to mili voltage. LM 358 dual operational amplifier was used to supply virtual ground to MAX 4238 amplifier. The amplified output voltage of three different current inputs as nano, micro and mili were nearly equal to theoretical outputs.
Influence of Various Sand Gradation on Mechanical Properties and Concrete Quality of High Performance Concrete (HPC)
Authors: Muhamad K , Isa N F , Hashim N H , Tusimin Z , Yahya N , Naamandadin N A , Razak R A , Tham P Y 
Published: March 2020

Abstract
High Performance Concrete (HPC) has a few characteristics: high strength, high early strength, high modulus of elasticity, high durability and long life in severe environments, low permeability and diffusion, resistance to chemical attack, toughness and impact resistance and so on. Almost 70 to 80% of the volume of the concrete is occupied by aggregate which have a great impact on characteristics and properties of a concrete. Not only course aggregate but fine aggregate also contributes a lot toward the performance of HPC. Thus, this research studied on the influence of various sand gradations on mechanical properties and concrete quality of HPC. The sand gradation utilized in the study are normal size sand, sand passing through sieve size 1180µm, sand passing through sieve size 600µm and sand passing through sieve size 300µm. The mechanical properties of HPC being studied are compressive strength and splitting tensile strength while the concrete quality of HPC is determined by using water absorption and Ultrasonic Pulse Velocity (UPV) test. The results show that the mechanical properties and concrete quality increased as the size of sand particles decreased. The optimum sand gradation is the sand passing through sieve size 300µm which achieved highest mechanical properties and concrete quality showing the highest result of compressive strength (123.9MPa), splitting tensile strength (8.91N/mm2), lowest percentage of water absorption (0.55%) and highest UPV value (7743N/mm2).
Evaluation and Optimization of Genomic DNA Extraction from Food Sample for Microfluidic Purpose
Authors: Afnan Uda M. N. , Parmin N. A. , Jambek Asral Bahari , Hashim U. , Uda M. N. A. , Shaharuddin S. N. A. 
Published: March 2020

Abstract
Contamination of various food samples became one of the critical issues in food pathogen infection. Food pathogen can be detected by using digital polymerase chain reaction (PCR) and sequencing. These methods were reliable but consuming and take a longer time for detection. The present work describes the innovation to develop a technology to extract double-stranded deoxyribonucleic acid (dsDNA) from food samples and then denatured dsDNA into and single-strand DNA (ssDNA) for further use on the chip using microfluidic device. Microfluidic device is a lab-on-chip device that consist of microfluidic channels that provide paths for biomolecules to flow to individual point of care. DNA extraction is the process by which DNA is separated from proteins, membranes, and other cellular material contained in the cell from which it is recovered. Lysis solution is used in the process of extraction the DNA to break up the cells containing DNA from protein and other cellular materials. This extraction firstly be done in the most labour-intensive in obtaining the DNA biomolecules. Extraction methods may require an overnight incubation, may be a protocol that can be completed in minutes or a couple of hours by using a commercial kit. The disadvantages of the laboratory and commercial kit is due to time-consuming, poor cost-effectiveness, the need to use big laboratory and a complicated process which need an expertise to conduct the experiment and interpret the data. This research is proposed to design and fabricate a microfluidic device that has DNA extraction capabilities. In this research DNA extraction using a commercial kit will be used as a comparison for the quality of the result. The microfluidic device can be used in health care delivery system and will help the doctors in diagnostic process to identify disease of a patient rapidly. Other than that, the output extracted from microfluidic device will be used for DNA probe target interaction for diagnostic kit. The major advantage of microfluidic device is that it consumes less time compared to the conventional chemical methods.