Advances in Engineering Research

Some earthquake victims carried out housing reconstruction activities independently before the government or other parties provided reconstruction assistance. They are reusing the ruined building materials to make post-earthquake building construction. The building survived and became the main building...

This paper puts forward a design of frequency synthesizer based on DDS for Ka-band radar signal simulation. RF signal is generated through the AD9854 DDS chip driving the PLL and VCO. The testing results showed that this Ka-band frequency synthesizer has low phase noise and wider bandwidth, and can generate...

As a new interdisciplinary, blood coagulation and thrombosis, being involved in the development and progression of many diseases, have a prominent clinical significance. Prothrombin time (PT time) is the time when calcium and tissue factor is added into the blood sample until when the blood sample completely...

Water is a critical element in agriculture fields. One of them, paddies. In this research developed the smart irrigation system to real-time monitoring, that provided the water level information based on Android. The prototype system made using the ultrasonic sensor (HC-SR04) to detect the water level,...

Rice is a food crop that is widely cultivated in Sekarputih Village. Farmers use more non-subsidized rice seeds. This study aims to determine the costs, income, profits and feasibility of non-subsidized and subsidized rice farming in Sekar Putih Village, Widodaren District, Ngawi District, East Java,...

The paper gives a method to determine a blade line element cutting angle of tillage inclined and vertical flat disks. Formulas are obtained for the blade line element cutting angle of discs, depending on its geometric and operating parameters. Similar dependencies based on the angle, characterizing soil...

With the rapid development of science and technology, the intelligent technology of measurement and control technology and instrument has made breakthroughs. And the intelligent technology of measurement and control technology and instrument has been widely applied. It has played a positive role in people's...

In this examination we have experimented the effect of ammonia concentration on shortcut nitrification and denitrification in a moving bed biofilm reactor (MBBR). The results show that, when the influent ammonia concentration slowly increased to 200 mg/L, the ammonia removal rate and the nitrite accumulation...

In order to predict the remaining life of the surface-cracks in the mechanical component, a method to evaluate the stress intensity factor of the crack tip is proposed. In this paper, finite element simulation is firstly used to evaluate stress intensity factor KFEM of the crack under different load...

The serious accident is usually accompanied by combustion and explosion of premixed combustible gases in petrochemical industry. The local combustion flame that occurs in the gas pipe will accelerate the propagation and may become to a detonation. The flame propagation characteristics of premixed methane/air...

Cellular damage induced by free-radicals like reactive oxygen species(ROS) has been implicated in several diseases. The ROS radicals like alkoxy radical(RO-) and peroxy radical (ROO-) are similar to those that are physiologically active and thus might initiate a cascade of intracellular toxic events...

This study aimed to develop a functional drink based on Hibiscus rosa-sinensis and evaluate the chemical, and sensory properties. The functional drink was made in a traditional method using hibiscus leaves juice and then diluted to several concentrations. The experiment was carried out using a completely...

This paper examines the EFL presenters’ perception of viewing using digital library profiles on empowering creative presenters to an international conference. The data was collected for 4 months, starting from compiling three times surveys in October 2018 up to January 2019 in some conferences presenters....

This study aims to reduce NOx emission by optimizing the secondary air system of the boiler using computational modeling and simulation. The shredded EFB is introduced in the inclined bed with primary air supply from the bottom of the bed. FLUENT Ver. 15.0 computational software is used to simulate the...

Purpose, The failure of policies and development programs for Home Industry (HI) that have been carried out by the local government is due to the implementation of the previous policies which were carried out sporadically, incidentally, not based on the community learning model. Clusterization is an...

Nowadays, there are many solar tracking applications using photodiode sensors and Solar Position Algorithm. This tracking depends on the power of light and natural conditions. Inaccurate sun tracking causes the heat concentration to become weak and miss focus on heat-receiving objects. We developed a...

Problems considering group assignment is often found in health area, where the groups represent whether a patient will be recovered or not, at high risk of relapse or not, and many other. While the occurrence of these events could be modelled using classification methods, more insights on the time of...

The rocket stove is a type of improved cooked stove that adopts an L-elbow/J-elbow shape. There are many rocket stoves on the market but the design itself only adapts in terms of shape without taking into account the design principles for wood-burning cook stoves. This study aims to analyze the design...

In order to quantify the fusion behavior of new and old asphalt during the hot recycling process, and to detect the degree of fusion of blended asphalt in different reclaimed asphalt pavement, this paper designs an experimental method to measure the fusion degree of new and old asphalt during the hot...

In recent years, single photon detection technology has made a breakthrough in the field of medical imaging, and promoted the development of high sensitivity, low noise and high-resolution imaging systems. A new type of single photon detector (SPD) based on superconducting materials, wide band gap semiconductors...

The use of composite materials in a structure needs to be followed by a repair method in case damage occurs in the structure. The standard methods for repairing glass fiber reinforced composite in aircraft structures is mentioned in the AC 43.13-1B document. One of them is the scarf method, which is...

Cobalt is one of the most common catalysts used in the Fischer-Tropsch (FT) process and the primary catalyst investigated in this study. Machine learning (ML) was used to analyze the variables that affect the FT process. This study investigates how surface area impacts CO adsorption and hydrocarbon product...

CO2 dry sand fracturing is a dry fracturing technology that uses liquid CO2 as the fracturing fluid. Compared with water-based fracturing fluids, liquid CO2 fracturing fluid has the advantages of less damage to the reservoir, a stronger ability to support fractures, and higher flowback efficiency. The...

It is of great significance to rationally determine the construction scale of land port multi-modal transport reloading area for scientifically guiding construction, improving construction efficiency and saving construction investment. The multi-modal transport reloading area of land port contains multiple...

Apart from having a positive impact on people’s welfare, tourism in Bali also harms ecosystem sustainability, especially regarding the issue of the groundwater crisis. The increase number of tourists is of course accompanied by an increase in the need for clean water. PDAM is only able to meet around...

The dead-end creek, as a blind area for water exchange, has always posed a challenge in improving the water environment of the river network area. Based on an investigation and analysis of the current water quality and live water conditions of the Wanlichangcheng River, coupled with the overall water...

The feasibility study for the clean water processing business for ferry needs aims to evaluate the potential sustainability and profitability of the project. The need for clean water on ferry ships, especially on long-distance routes, is very important to support ship operations, crew, and passenger...

In this work, Brushless Direct-Current (BLDC) Motor utilized in Electric-Powered Vehicle application is simulated using Closed-Loop Control (CLC). There are numerous methods for controlling a BLDC motor. Because Brushless DC (BLDC) motors have superior electrical and mechanical properties, they are used...

In the context of globalization, the shipping industry plays a crucial role in international trade, and fluctuations in freight rates have significant impacts on the global economy. This study integrates Automatic Identification System data with shipping schedule data to calculate the daily total capacity...

We propose all-solution processed white quantum dots light emitting devices (WQLEDs) based on CdSe/ZnS Quantum dots(QDs)/polymer hybrid emissive layer which was red, green and blue (RGB) QDs and blue emitting homo-polymer blending. The proposed WQLED showed higher brightness, external current efficiency...

In this paper, the problem of path planning existing target movement in the flight is studied. Firstly, according to the terrain threat, the threat field is created by using the Voronoi diagram method, and the total cost of the track is established. Then, the problem of the traditional path planning...

Solar power has become one of the most important renewable resources due to the energy crisis recently. An intelligent solar LED lighting driver system based on embedded technology was designed to make full use of the green energy. Electricity which was detected real-timely was generated by solar cells....

Collaborative filtering is a recommendation algorithm which is used in personalized system. To solve the problem of low accuracy caused by sparse data in the user-item matrix of traditional collaborative filtering algorithm, this paper presents a hybrid algorithm. Firstly, it uses the data based on the...

Assembled monolithic metro station is a potential kind of structure technique to solve a series of problems caused by the cast-in-situ concrete technique used in the traditional construction way of metro station. Seismic properties of this underground structure are modeled and studied based on the response...

In this work, the direct precipitation method was used to generate magnesium salt Mg(OH)2, the process of preparing MgO crystal by calcining Mg(OH)2 in three stage temperature was studied, and MgO crystal was characterized by scanning electron microscope and XRD. On this basis, the energy band structure...

Ethyl 4-hydroxy-3-methoxycinnamate was synthesized by reaction of ethanol and 4-hydroxy-3- methoxycinnamic acid using an efficient cation-exchange resin as catalyst under microwave irradiation. The catalyst activity was investigate by single factor experiments. The reaction conditions - amount of catalyst,...

In order to improve the level of the meteorological administration in the province, the electronic government affairs office and the government management in the network information system are standardized. The platform integrates the multi-tier architecture, supporting WebService, SOAP, XML and other...

Thermoelectric effect or Seebeck effect provides a means by which thermal energy can be converted into electricity directly. Voltage appears between two different types of materials (Conductor or Semiconductor) that are joined together and its junction is heated. While most efficient materials are semiconductors,...

The vehicle monitoring system is to use GPS technology to locate the vehicle, the vehicle information through the communication network back to the monitoring center, monitoring center and then use GIS technology to analyse the vehicle information, the vehicle is displayed on the electronic map, and...

Manufacturing factories are always in pursuit of achieving higher productivity in order to satisfy the growing demands of the consumers but are often meet with challenges in achieving these goals due to various complexities. These complexities arise from the limitations of human operator's i.e. their...

Non-ferrous metal, crystal material, infrared glass and so on are widely used in the infrared optical system, they can be cut directly by single point diamond turning, so single point diamond turning technology was soon applied to infrared optical elements processing, which can be understood that infrared...

Traditional way of tea processing have staff labor intensity, low efficiency, high cost, product quality is not standardized, and mechanical processing instead of manual tea with tea very good to solve the above shortcomings, this article from mechanical processing technology of tea, Analyze tea frying...

Informatization is the trend of world economic and social development, with the network technology and multimedia technology as the core of information technology has become the creative tool of expanding human ability. "Computer" and "curriculum integration" teaching model has become our country oriented...

Methods used for the determination of strontium content in strontium carbonate are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the strontium with high content,...

In order to have a better understanding on the stability of roadway surrounding rock in QingFeng coal mine. Protodyakonov's theory is used to evaluate its stability theoretically, then a numerical simulation is conducted to analyze the stability of roadway surrounding rock in natural state by using the...

Rapid design systems in existence mainly target at series development instead of product variant design. As an effort to solve this problem, this paper applies WAVE (What-if Alternative Value Engineer) to rapid product design. It elaborates on the basic theory and design method of WAVE and points out...

A non-conventional method of obtaining few-layer graphene (FLG) is suggested, which comprisesrepeatedly rubbing bulkgraphite against semiconductingand insulating substrates. The obtained graphene/graphite structures consisting of rubbed-off layers behave like a semiconducting material with through-thickness...

In this paper, an adaptive noise cancellation system based on RLS algorithm is presented, and the principle of noise cancellation system and the steps and processes of RLS algorithm are described. The simulation of adaptive noise cancellation system based on RLS algorithm is obtained by using an example....

Designed a kind of prefabricated solar heating system, It tested the performance of the heating system. The heating system mainly includes prefabricated solar heat collection plates blower gas transmission pipeline heat accumulator bulk flow device control box. The solar heating system can be effective...

To analyze the bearing reliability of oil film between the element and the pulley of metal V-belt cvt, an mathematical model of oil film thickness between the element and pulley was build based on the theory of EHL (elasto-hydrodynamic lubrication) and the experimental data. And then solved by multi-grid...

Meteorological satellite images are very important in meteorology, and they have a clear reflection to the process of the weather’s dynamic changes. Remote sensing technology can give the detection and identification to the objective, and it has the effective identification to the weather pictures. In...

Regulation is very useful in remedy the market failure effect caused by monopoly, especially in natural monopoly industry such as electricity. This paper first reviews the regulation situation in China’s power industry, then we analyze the influence factors that have influence on the regulation in power...

At present, the research and application on material still stays in the primary stage in domestic, mainly by introducing the foreign advanced technology and experience, rare in independent research and new materials development of technology. Proceeding from our national conditions, we should focus on...

BMP2 is known to activate ER stress-associated molecules,including XBP1S and ATF6.PGRN (Progranulin) was reported to be a stress-response factor in response to hypoxia and acidosis. Here we present evidences demonstrating that PGRN is also an ER stress responsive factor.PGRN expression was induced and...

This article introduced application technology of road anti-icing asphalt coating. By conducting field tests, the construction procedures and requirements were summarized. By conducting lab tests, performances of the anti-icing asphalt coating were verified. Testing results show that the anti-icing asphalt...

This research was conducted at Tapunggaya in Molawe subdistrict in North Konawe Regency in South East Sulawesi, near activity of mining Laterite Nickel. This research aims to know the impact of the activity of mining nickel laterite on the quality of groundwater. The methods used to analyze concentrations...

Wind power forecasting is of great significance for promoting the new energy resources accommodation and the economic efficiency, security and stability of power grid operation. The traditional wind power forecasting model has monotonous elements for input and demonstrates a lack of spatiotemporal correlation...

Road is one of the important infrastructures in facilitating the mobility of goods and services in order to improve the national economy, but most of the roads are damaged by the effects of weather. The rain water interusion into the pavement layer make accelerates erosion process. The asphalt erosion...

Many cases show that multiple injections fracturing serves as an effective method to increase the probability of creating complex fracture network for shale gas reservoirs. However, its mechanism is unclear. This paper, therefore, intends to use numerical simulation and theoretical models to explore...

The harmonic suppression must be applied to the power equipment in distribution system in order to improve the power quality and saving energy. So the author developed the dynamic harmonic filter, and it was successfully applied. Based on the previous research, Firstly, the paper analyzed quantitatively...

The increasing access requirements of distribution network in urban centers and the limited bay resources in power grid have formed a great contradiction. Ac-cordingly, the bay resource optimization method based on hierarchical model is proposed in this paper. Outer planning selects attributive substations...

Methods used for the determination of titanium content in pyrotechnics are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the titanium with high content,the sample...

Breast cancer is a threat to women’s health. Female adolescents need to be vigilant. This study aimed to analyze the relationship between dietary patterns, sedentary lifestyles, and breast cancer awareness among female adolescents. A cross-sectional approach with stratified random sampling was used....

The current use of the gelam tree is only found in wood processing. On the other hand, gelam bark is not optimally utilized so as to produce unused bark waste even though the natural fiber of gelam bark is of high economic value. The purpose of this study was to determine the effect of volume variations...

According to Ministerial Regulation No. 24 of 2015, Law No. 23 of 2007, and Government Regulation No. 56 of 2009, the government as the regulator is obligated to ensure that the operation of rolling stock is in accordance with the regulatory standards and can be operated safely as demonstrated by testing...

The scope of this research is focused on the segment of Yitong River in the Nanguan District of Changchun City. Utilizing GIS technology, a thorough analysis of the transportation accessibility in Nanguan District is conducted. Additionally, a survey is distributed to residents to explore their needs....

Programmable Logic Controller is electronic equipment that operates digitally, which uses programmable memory to store internally for specific function instructions. In the process of transmitting PLC data, it still uses cables or cannot use wireless because the PLC itself does not have wireless. To...

The environmental vibration problems caused by the operation of subway trains are becoming increasingly prominent. In order to master the influence of line conditions on the vibration characteristics of the subway under high-speed driving conditions, field test of track vibration on a curved section...

Final Project is one of the academic stages that must be passed by students to obtain a degree. In the era of the Covid-19 pandemic, the stages to achieving this degree must be done online by students. To accommodate this, we need a system that can bridge so that the final project stages can run even...

The production process of bricks made from waste mud was optimized in this study by investigating the effects of various factors on compressive strength, including curing agent formula, molding pressure, moisture content, and dosage. Economic benefits were also analyzed based on market conditions, demonstrating...

To investigate the characteristics of the differential pressure force on the tailplane which is in the trailing edge of the main wing. In this paper, Ansys Fluent software is used to simulate the characteristics of the differential pressure force on the tailplane when aircraft with different tail heights...

With the increase of foundation pit excavation depth, the influence of groundwater on the horizontal displacement of the envelope structure during foundation pit excavation is becoming more and more obvious. The coupling of the sedimentation mechanism and the stress field is analyzed, the deformation...

As a complex dynamic composite system, the accurate prediction of water resource coupling systems is key to the scientific management and sustainable utilization of water resources. Traditional modeling methods based on raw undecomposed data have limitations in mining deep patterns and latent patterns...

With the development of autonomous driving technology, autonomous vehicle navigation in complex environments has become a key challenge. To cope with the difficulties in complex environments, multi-sensor fusion technology comes into being, which is of great significance for improving transportation...

In the present work, we constructed the Chongqing Municipal Inspection Data Center leveraging the cloud native technology architecture. The system was designed as a regional medical inspection data management center, focusing on centralized management of medical inspection data access, comprehensive...

Using the ReaxFF molecular dynamics method, we investigated the pyrolysis mechanisms of n-decane and its isomer (2-methyl-nonane) to assess how isomerization affects initial pyrolysis pathways and main product formation in straight-chain alkanes. The results indicate that at high temperatures, the initial...

During tunneling construction, excavation activities disrupt the geological layers, inducing deformation in the adjacent soil and giving rise to uneven settlement. Consequently, this can cause cracking, tilting, or even more significant structural failure. Utilizing the ABAQUS finite element software,...

Amplang is an iconic snack of Samarinda which is mostly produced by small and medium enterprises. One of the SMEs that produced amplang in Samarinda is SMEs Ampang “Y”. Amplang “Y” was established in 2010. The production process of amplang in SMEs “Y” was conducted manually with six workers. The production...

Silicon photomultipliers (SiPMs) represent a new generation of solid-state photodetectors that combine high photon detection efficiency, fast response time, and compact design. Owing to these advantages, SiPMs are increasingly being used in applications requiring precise light detection, such as nuclear...

Cultural heritage, which has cultural and historical value, is important and plays an important role in human society. In recent years, many challenges have effect the protection pf cultural heritage. New pressures were brought by rapid urban expansion and frequent natural disasters to heritage conservation....

The hydrogen plant control system experienced six trips within a two-month period. This resulted in the cessation of hydrogen gas (H2) production and posed several potential risks to the generator, including: first, the potential overheating of the generator rotor, which could reduce the isolator’s lifetime....

This paper introduces Modbus-RTU Communication Protocol. Then, based on the analysis of the principle of communication and combining with an instance, the paper gives out a specific method to realize the serial port communication between computer and MCU C8051F020 in Kingview 6.55.

Power line over-current relay protection is an important part of power system, it is an important technical measure to assure the safety and reliable operation of electric power system and electric power line. In this paper, on the basis of the features of the relay protection in the power line, thorough...

Gleeble thermal-mechanical simulation can accurately control the parameters such as thermal, force and displacement of certain working conditions, which has been widely applied in the HAZ simulation and other metallurgy behaviors. In this paper, Gleeble thermal simulation technique has been used to study...

Shield tunnel construction will disturb the surrounding strata and cause stress release and adjustment, resulting in uneven settlement of adjacent buildings and even collapse. According to the geological conditions of Ji'nan Railway Line 2, a three-dimensional numerical model is established. The analysis...

In this study, a self-oscillating polymer chain with Fe(bpy)₃ as the catalyst of the Belouzov-Zhabotinsky (BZ) reaction was synthesized to examine the influence of strong acid (due to its oxidizing power) on the self-oscillating behavior. The polymer chain with Fe(bpy)₃ underwent a soluble-insoluble...

To solve the problem of insufficient bandwidth in damping frequency, it is the key to advance the application of tuned mass damping method in architectural design. This paper presents the idea that the tuned mass ratio increases the bandwidth of damping frequency. Based on deterministic excitation, the...

In this paper, the effect of preparation conditions of the catalyst MIL-88A were investigated. The results shows that MIL-88A with the raw materials proportion of n (Fumaric acid/ Fecl3?6H2O)=1:1, the synthesis temperature of 85? and crystallization time of 2h, activation temperature of 100? and drying...

The mechanical properties of rubber materials are complex, and the strength problem is getting more and more attention. This paper summarizes the research status of mechanics experiment of rubber materials under dynamic and static load, commented recent years domestic and foreign the progress on the...

point bar reservoir is the key development object in the late development of Daqing Oilfield, in this paper, the numerical simulation based on the construction of the point bar is carried out on the basis of the modeling of the point bar. Through dynamic data generating simulated well history and acquiring...

As a superconducting radio-frequency (SRF) cavity is a thin-shell structure with several thin bellows to bridge to its cryostat, any external excitation readily induces oscillations. The operation of a SRF module becomes unstable when the RF resonant frequency varies, due to mechanical vibrations, to...

On the analysis of the electrochemical abrasive belt polishing technology, the main process parameters and equipments for the compressor crankshaft are selected; a set of finishing experiment plan is designed. The results show that the polishing process can reduce the surface roughness obviously, and...

In this study an experimental investigation was carried out on a turbocharger with variable nozzle turbine (VNT) and exhaust gas recirculation (EGR) system reducing emissions of a direct injection diesel engine. In the EGR system, the exhaust gas was tapped off before the turbine, cooled, and mixed with...

Objective: aiming to establish a new strategy based on uniform design and genetic algorithm and applying in the optimization of the separation condition of Ginkgo biloba extract using reversed-phase liquid chromatography according to traditional optimization methods. Methods: based on uniform design...

The probability approach is the most popular way to quantify uncertain parameters and perform reliability analysis. The problems of structural optimization and robust design for laminated composite structures with reliability constraints are addressed in this paper. A new methodology to determine the...

To prepare SiNx thin film with good compactness, fast deposition rate and stable performance, plasma-enhanced chemical vapour deposition (PECVD) is adopted to study the influences of different technological parameters on the properties of SiNx thin film. The experimental results indicate that SiH4 and...

In terms of environmental protection problems relating to the stripping technique of glued cellophane tape, apart from equipment demands being very high, most operators in Taiwan still manually strip the tape. The processing speed is thus slow, and cannot meet operators’ expectations, which means that...

With the low altitude airspace open in succession in China, the general aviation industry of China began to develop rapidly, so general aviation development prediction has become one of the pressing needs for the future planning of the government and the general aviation enterprise. In view of this,...

Southern Shaanxi region has abundant featured resources. However, due to lack of guidance of characteristics planning theories and methods, small towns gradually lost their own characteristics in the rapid development. Based on the interpretation of the concept and constitution of town's characteristics,...

In multi-component spectral analysis, informative variables selection is important to get satisfied performance. The present research intends to establish relationship between eggs freshness and NIR spectroscopy, and build a compact and robust calibration model. Graphically-oriented local multivariate...