bluuebunny/crossref_metadata_2025_split huggingface dataset:
H
∞ Loop Shaping Robust Control for Body Roll of Tractor-semitrailer on Ice-Snow Road
Authors: Sheng Chang , Bingtao Li , Xianchao Zhu 
Published: June 2020

Abstract
In view of the problems that the poor driving stability and the increase body rolling even instability of the tractor-semitrailer in turns with a middle-speed on the ice-snow road, a robust stably controller that uses a combination method of H
∞ and loop shaping is designed. The tractor-semitrailer dynamics model with the body roll degree of freedom is been established, and the influence of different ice-snow road adhesion coefficients on the dynamic characteristics of body rolling angle is analyzed. Finally, the simulation verification carries out that the controller which is used H
∞ loop shaping can make the body roll of tractor-semitrailer stable, and the controller has a good robust stability.
Research on Industrial Control Technology of Hydraulic Stability of Condensing Unit on Ethanol Distillation Tower
Authors: Gong Kun , Song Chuancheng , Bu Jiahui , Ma Cheng 
Published: June 2020

Abstract
Aiming at the problem that the hydraulic pressure of the condensing control device at the top of the ethanol rectification tower is unstable, which affects the efficiency of chemical production, a strategy for controlling the hydraulic stability by controlling the nozzle opening time is proposed. Firstly, the functional relationship between elastic modulus and pressure is obtained by polynomial interpolation fitting. Then, based on the Navier-Strokes fluid theory, the differential equation of density of the condensate and the continuous equation of flow are obtained. From the static and dynamic perspectives, the goal planning based on the concept of least squares is traversed to obtain the optimal check valve opening time. A simulation experiment with a standard value of 100 MPa was used to obtain the optimal solution of 0.308 ms, and a comparison experiment was performed to verify the accuracy and rationality of the solution.
Fuel system control design based on mass conservation
Authors: Zhong Zhenfang 
Published: June 2020

Abstract
Fuel entering and ejecting high-pressure fuel pipe is the basis of fuel engine operation. The intermittent operation of high-pressure oil pump and injector will lead to the change of pressure in high-pressure oil pipe. This paper studies the influence of the opening and closing of one-way value and the speed of cam angle on the pressure in high-pressure oil pipe. Because the fuel flow is unstable in the high-pressure fuel pipe, it is necessary to determine the influence of pressure change on fuel density, and then calculate the mass of fuel supply and fuel injection in unit time. Considering the principle of mass conservation, the problem can be transformed into the length of single opening time of one-way valve when the mass of fuel entering and leaving the high-pressure oil pipe is equal in unit time interval. At the same time, by deducing the influence of the single opening time of the one-way value on the pressure in the high-pressure oil pipe, the single opening time of the one-way valve when the pressure of the high-pressure oil pipe reaches equilibrium after 2s, 5s and 10s is 0.610895ms, 0.425998ms and 0.373376ms respectively. Consider the working principle of the fuel system on the basis of the above considerations. Fit the function relationship between the needle lift and working time, deduce the change rule of flow volume of injector with time, and calculate the volume and mass of fuel injected by the injector in the working cycle. The results show that the high-pressure oil pump supplies oil 94 times in a working cycle of the injector, and the time required for the cam to rotate for one circle is 1.064ms, and the angular velocity of the cam is 5.906rad/ms. In this paper, based on the theory of unsteady liquid motion, mass conservation and energy conservation of fluid mechanics, many elements involved in the problem stem are analysed and related, and the control model of one-way valve switch and cam angular velocity is given.
Research on access control method of Digital Archives based on blockchain
Authors: Men Rui 
Published: June 2020

Abstract
This paper analyzes the security problems that need to be solved urgently in digital archives system: First, the centralized storage of digital archives makes it overwhelmingly dependent on the third-party storage organization. Second, every transaction has its own access proof and its own authorization proof, it’s not transparent to others. Then the blockchain technology is introduced to solve the existing problems. We store the digital file attachment and file attributes in the private IPFS cluster after encryption. The address of IPFS and digital fingerprint of the file are stored on the private blockchain. Additionally, this paper stores and checks the height and hash value of the latest irreversible block of the private blockchain, to guarantee the authenticity of data on private blockchain. To solve the second problem, we store the ABAC on public blockchain, add time and position information to the attributes of the subject, to achieve fine-grained access control. Finally, this model is implemented on fabric1.0.3.
Research on Dual Loop Control Strategy of Dynamic Wireless Charging for Electric Vehicle
Authors: Fan Xingming , Zhang Weijie , Zhang Xin 
Published: June 2020

Abstract
This paper focuses on a dynamic wireless charging method of electric vehicles with segmented structure, which uses multiple transmitting coils at the transmitting end to realize wireless power supply for electric vehicles in motion. Based on the structure of the dynamic wireless charging system of the electric vehicle with magnetic coupling resonance, the system is modeled and analyzed by using the equivalent circuit theory, and a control strategy of the transmitting end is proposed, which can effectively solve the problem of coil deviation and dynamic characteristics when the receiving coil and the transmitting coil of the electric vehicle are in the charging process. A double loop controller is designed to adjust the power and current of the transmitting end, which allows the sequence and timely activation of the segmented transmitting coil. Under the condition of no-load and load, the current of the transmitting coil is controlled at the reference value to compensate the power transmission reduction caused by the lateral misalignment of the vehicle and prevent the overload at one time. The system is modeled and analyzed with Simulink software, and the feasibility of the control method is determined.
Network Intrusion Monitoring Technology Based on Decision Tree Method
Authors: Liu Xinyu 
Published: June 2020

Abstract
In order to solve the problem of poor real-time network security intrusion detection, this paper proposes a network intrusion monitoring technology based on decision tree method. Firstly, the network intrusion monitoring module is set up in the existing network topology model, then the network information collection, information processing and information analysis modules are combined. Finally, the decision tree method is used to identify the abnormal data, effectively realize different types of abnormal data monitoring, and finally realize the network intrusion monitoring. Experimental results show that the proposed intrusion monitoring method can better monitor network intrusion behavior, and has higher monitoring accuracy than other methods.
A Data Fusion Framework of Multi-Source Heterogeneous Network Security Situational Awareness Based on Attack Pattern
Authors: Yao Yuangang , Sun Yanwei , Liu Zhaohui , Meng Xiangjie , Liu Zhaohui 
Published: June 2020

Abstract
In the context of the era of big data, how to quickly and accurately detect attack events from massive amounts of heterogeneous data and form effective response on time has become the main challenge facing network security today. This paper systematically summarizes the attack behavior with both attack technology mechanisms and characteristics of the attack target, thereby constructing a scalable attack behavior model. Based on the attack behavior model, a data fusion framework of the multi-source heterogeneous network security situation is constructed. The framework normalizes multi-source heterogeneous security data into threat events with an attack pattern as the core and determine the attack state by the causal chain. Finally, the feasibility and effectiveness of the framework are verified by analyzing data in real business scenarios. This framework abstracts the multi-source heterogeneous data into an analyzable attack event, which greatly reduces the amount of data to be analyzed and improves the credibility of the network security situation data, realizing the identification of attack behaviors in the big data environment.
Effect of compaction characteristics on hydraulic conductivity performance for sedimentary residual soil mixed bentonite as compacted liners
Authors: Khalid Norazlan , Mukri Mazidah , Kamarudin Faizah , Abdul Ghani Abdul Halim 
Published: June 2020

Abstract
This paper discusses on the compaction effect to the hydraulic conductivity performance for the sedimentary residual soil mixed bentonite. This mixture is proposed as a barrier material in landfill area and may possibly potential materials for use as compacted soil liners in landfills for leachate protection. A laboratories series was conducted to evaluate the effectiveness of compaction characteristics on sedimentary residual soil mixed with different percentage of bentonite (5%, 10% and 15%). The sedimentary residual soil sample was used in this study and was collected in sedimentary residual formation area in Salak Tinggi, Malaysia and named as Salak Tinggi soil. The mixed samples were compacted at three different compaction effort with different energy to determine the maximum dry density (MDD) and optimum moisture content (OMC). Then, the permeability test to determine the hydraulic conductivity (k) was conducted at MDD condition at every compaction effort at effective stress of 100 kPa. The results show that the MDD value were slightly low for the entire soil sample mixed with bentonite at all compaction energy level. Instead it shows all the three different compaction efforts applied to the mixed soil samples with bentonite yielded hydraulic conductivity less (k ≤ 1x10−9m/s). In fact, the increment of bentonite content also resulted in lower of MDD value and hydraulic conductivity value. However, MDD values were found to be higher for mixed soil when compacted with high compaction effort. The results of hydraulic conductivity tests demonstrated that hydraulic conductivity, k ≤ 1x10−9m/s can be achieved just by using lower compaction energy for the soil mix with bentonite. Instead it considered as suitable materials for liner due to the hydraulic requirement for soil barrier, k ≤ 1x10−9m/s. This finding show that compaction efforts play an important role for workability of the mixtures and significantly to be used as compacted of soil liner materials.
Determinants of Green Highway Implementation Factors by Using Partial Least Squares
Authors: Mohd Nusa Fatin Najwa , Mohamed @ Arifin Mohd Amizan , Ab Rani Nur Izzati , Abu Bakar Azlan , Nazura Paimin Aini , Soo Fen Fam , Abdul Rahman Siti HamidahA 
Published: June 2020

Abstract
Malaysia was officially launched Malaysia Green Highway Index (MyGHI) manual as a guideline to confirm the green credential of a highway, this concept is at the conforming stage in Malaysia with seventeen (17) operated tolled highway projects and eleven (11) other registered and awaiting assessment for certification. Subsequently, INFRASTAR developed as an evidence-based rating system for infrastructure projects. Further measurement should be taken into account from the perspectives of highway concessions and stakeholders. Thus, this is not only to focus on the rating scores; as well as to highlight the driven factors that lead to Malaysia’s green highway implementation. The primary constructs of this research model namely green highway challenges, green highway characteristics and green highway implementation are assessed. A total of 63 surveys from 81 surveys were responded (77.8% of responses rate). The response rate was high, and there was no evidence of bias noted. The statistical result of this study corroborates the exploratory study interviewed earlier which suggested a positive relationship between green highway characteristics and green highway implementation. Besides, all the constructs represent 12.8%, 37.7% and 96.2% of factors for challenges and characteristics towards green highway implementation in Malaysia’s operated tolled highway projects, respectively. Implications and future research directions of this study are discussed.
The competency component needed by the Project Manager in managing the Road Project in West Sumatera, Indonesia
Authors: Edrizal  , Mairizal  , Alzahri  , Abd Majid Muhd Zaimi 
Published: June 2020

AbstractRoad construction and upgrading projects are currently being intensively implemented in West Sumatra, and this is very important in increasing the competitiveness of the Indonesian economy. During the construction period, it will give a positive impression to be able to reduce transportation costs, use value and labour productivity. In this case, a project manager will play an important role in the success of the project. There are some opinions that a project manager will determine the likelihood of a project success, even though their projects often facing big problems. In this paper, the focus is on determining the competency component of the Road Project Manager in West Sumatra in implementing the Project Management concept that leads to project success. Based on this and in accordance with this study, the approach used in data collection and processing is a qualitative. The results of the factor analysis are shown to the experts, to establish that all of these factors are important in developing the success of the project managed by the Project Manager. The results of the factor analysis obtained 65 combined factors what has been validated by experts. In conclusion, all these factors are important in determining the performance of a Project Manager in West Sumatra.
Evaluation of Toll Road Pavement Performance Based on the 2013 Bina Marga Method (Case Study: Serpong-Pondok Aren Toll Road)
Authors: Maria T , Amelia M , Vembrie S 
Published: June 2020

Abstract
Traffic growth due to economic growth in a region, impacted pavement on bearing a heavier load. Faster road pavement damage is one of the consequences of this incident, whereas toll roads are required to provide much better performance. Therefore it is necessary to conduct a study relating to the analysis of the results of road pavement performance as one part of the evaluation of pavement conditions. The purpose of this study is to conduct a pavement evaluation both functionally and structurally based on the 2013 Bina Marga method. The results of this study are expected to provide benefits in developing toll road maintenance policies and plans. The method used in this study is a survey method and descriptive statistical analysis of the data collected. Based on the results of this study, IRI values in each row can be categorized very well. In the last 5 years, only 24 points were found that had IRI values> 4, at STA 5+-500 lane 1 of Pondok Aren-Serpong showed unevenness at the same station for several years. RCI values indicate that pavement is classified as very good and regular. PSI values indicate that the pavement has provided sufficient services. The deflection value is an average of 167.47 micrometers with deflection uniformity of 0.222 so that the pavement is classified as very good. The results of the analysis of the pavement performance evaluation that has been carried out, show that the performance of the pavement, both functional and structural for the road on the Serpong-Pondok Aren toll road is classified as good.
Effect of the Densification of the Reinforced Asphalt Mixtures on the Permanent Deformation
Authors: Aman M Y , Alnadish A M , Rohani M MD , Danial D B , Mohamad Tahir M N M 
Published: June 2020

Abstract
This study aims to provide a better understanding for evaluating the resistance of the reinforced asphalt mixtures to permanent deformation. The resistance of asphalt mixtures to permanent deformation was assessed using dynamic creep test at a temperature of 40 °C. Four mixtures namely Mix1, Mix2, Mix3, and Mix 4 were evaluated, Mix1 corresponds to the control mixture that containing coarse steel slag aggregate while Mix2, Mix3, and Mix4 represent the reinforced mixtures with polyester fiber at the proportions of 0.05, 0.15, and 0.3%, respectively. The findings of this study showed that the elastic deformation occurred at the primary stage has a negative influence regarding the permanent deformation assessment. In addition, increasing the content of the polyester fiber has a positive relationship with the elastic stage; the higher the proportion of the fiber, the higher the deformation at the elastic stage, which have a negative effect on the evaluation of the mixtures resistance to permanent deformation, if the deformation occurred at the elastic stage is not excluded. On the other hand, the mixtures containing a high content of polyester fiber exhibited better resistance to the permanent deformation at the viscoelastic stage.
Rheological Properties of Bitumen Containing Organic Foaming Agent for Warm Mix Asphalt
Authors: Muhaimin Memon Abdul , Hazwani Nur , Hartadi Sutanto Muslich , Bala Nura 
Published: June 2020

Abstract
Pavement industry is placing more emphasis on incorporating the sustainability in road construction. The construction of road contributes to global warming in terms of greenhouse gas emissions. Generally, the construction of roads adopt hot mix asphalt (HMA) that requires high energy consumption and also lead to environmental pollution. Since last decade, warm mix asphalt (WMA) technology is an attempt to address the aforementioned energy and environmental problems by reducing the harmful emissions and energy consumption. This study investigates the effect of organic foaming agent zeolite on the rheological properties, mixing temperature and compaction temperature of bitumen used in WMA. Dynamic shear rheometer (DSR) characterization is performed to determine the effect of zeolite on complex modulus (G*), phase angle (δ) and Superpave rutting parameter (G*/sirδ) of bitumen. In addition to that, viscosity characterization using Brookfield rotational viscometer is conducted to determine the mixing and compaction temperature. Rheological characterization of binder containing zeolite shows the improvement of elastic segment and short-term ageing resistance. Viscosity characterization reveals that the addition of zeolite in bitumen offers significant reduction in mixing and compaction temperature. Based on the findings of this study, 3 % zeolite can be added to WMA technology as optimum additive content in order to reduce the energy consumption and improve the workability of road construction thereby promoting sustainability in pavement industry.
Bored Piles Imperfection Detection Using Optical Fibre Sensor: Laboratory Simulated
Authors: Beddelee A A A M , Mohamad H 
Published: June 2020

Abstract
Actual experimentation of the bored pile imperfection detection is infeasible to be conducted since the issues of limitation in imitating the actual bored pile construction and absent of practical observable condition during monitoring activity. Through this study, the bored pile is idealized to a reinforced concrete column (RC column) to ease the laboratory simulation and pile damage determination. Distributed Optical Fibre Strain Sensing (DOFSS) through Brillouin Optical Time-Domain Analysis (BOTDA) is used to detect the imperfection. The objectives of this study are to measure the effect of imperfection of bored pile through load column test and to compare the optical fibre sensor reading with conventional instruments. Firstly, the RC columns were designed and the sensors are embedded into the RC column which then loaded by few loading stages. Subsequently, the BOTDA analyser and the conventional sensors reading unit will read the strain of the RC column. After the experimentation conducted, it is proven that the fibre optic sensor is reliable and good in consistency for strain measurement compared to other conventional sensors, and the effect of imperfection of bored pile through load column test able to be measured.
Experimental testing and ultrasonic pulse transmission technique of granite for sustainable rock testing approach at Rawang, Selangor
Authors: Hamzah N , Yusof NA Mat , Abdul Rahman A S , Harun M A 
Published: June 2020

Abstract
Advanced characterization technique which is Non-destructive Testing (NDT) technique are required to monitor the testing for physical and mechanical properties of rock. Using Non-destructive Testing technique, the information gather are much faster and easier without any disturbance to the sample test. In rock engineering, the key role in the long term stability are depending on the characteristics of rock and the rock masses. Since the finding of strength parameter are time consuming and very expensive, this research is conducted to perform experimental testing and ultrasonic pulse transmission technique on granite for a sustainable rock testing approach. Through this study, it enables to identify a simple way to predict these strength parameters especially and specifically for Unconfined Compression Strength (UCS) by using Point Load Test (PLT) and Ultrasonic Pulse Velocity (UPV) Test. From this study, the correlation can be made among UCS, point load index, and sound velocity which the empirical formula for point load and the ultrasonic pulse velocity test are UCS = 20.8(Is50) + 2.2 and UCS = 144.68Vp – 684.37 respectively. The ultrasonic pulse transmission technique methods can be used to predict the compressive strength of rock. It can be practically used in the field since the technique are portable and easy to use. By using the least-square regression method, the empirical formula formulated between UPV and UCS values signifies that the correlation coefficient (R2) obtained for the equation is 0.9692 and indicates that both variables have a good agreement relationship.
The Effect of Bioconc Against Compressive Strength of Paving Concrete Combining Natural Materials
Authors: Daniel Limantara Arthur , Gardjito Edy , Sudarmanto Hery Lilik , Arthur Limantara Vincentius , Situmorang Adolf , Mudjanarko Sri Wiwoho 
Published: June 2020

Abstract
The use of additive concrete mixtures is commonly used to increase the concrete compressive strength. This study aims to see the effect of using Bioconc additives in combination with natural ingredients in increasing concrete compressive strength and reducing the use of cement. Natural materials used in concrete mixtures are fibers and coconut shells, bamboo and snail shells. The specimens measuring 15 cm x 15 cm x 15 cm with the percentage composition of each natural ingredient is 10% in coarse aggregate substitution and the addition of 500 ml/m3 of the Bioconc concrete mixture to the target K300 (24.9 MPa). Reduction of cement use 10% (R10), 15% (R15), 25% (R25) as much as each percentage is 5 pcs and tested at 28 days. The compressive strength results obtained from testing the average specimen of each natural material and the optimum percentage of cement reduction for fibers and coconut shell R10 = 26.27 MPa, R15 = 23.92 MPa, R25 = 19.39 MPa, Roptimum = 13%; bamboo R10 = 26.83 MPa, R15 = 22.59 MPa, R25 = 16.52 MPa, Roptimum = 12%; Snail Shell R10 = 17.89 MPa, R15 = 14.68 MPa, R25 = 12.35 MPa, Roptimum = 9%. While for the absorption of the average of each natural material for fibers and coconut shell = 2.28%, bamboo = 2.67%, and Snail Shell = 1.71%. Based on the results obtained with the target of K300 concrete compressive strength it can be concluded that the optimum cement reduction with substitution of natural fibers and coconut shell material is equal to 13% and for the average absorption is bamboo natural material substitution of 2.67%.