Advances in Engineering Research

The CO₂ desorption analyses of amines were performed to reveal the behaviour of amine regeneration process. A typical primary amine (MEA) and two other secondary amines (MMEA and DEA) were selected in preparation for amine solutions under different concentrations, from 1-7 mol/L. The regeneration curves...

The biofilm fouling is the main factor for MBR fouling. Conventional control methods are difficult to mitigate membrane fouling for a long time. Other methods like quorum sensing, biofilm disperse protein, NO, etc. are not control MBR biofilm fouling in suit. So, combining the functional gene to constructe...

Graphene oxide (GO) is prepared from flake graphite. By changing graphite, reaction time and oxidant addition, the critical process that influenced the preparation is studied. Optimum reaction process of 1400 m/710 m graphite is obtained with results of characterization and yield. With the introduction...

A two dimensional finite element model is established to simulate the effect of pore water pressure on stability of surrounding rock of roadway of soft rocks and the distribution laws of water pressure during coal mining, according to the engineering geological data. Simulation results show that, the...

The proposed 6x 660 MW Super Thermal Power Project is located near village Sandni and Barethi in Rajnagar Tehsil of Chhatarpur district, Madhya Pradesh. The terrain belongs to Bundelkhand Granite Massif (BGM) comprising a variety of medium to coarse grained granites. The Project site is mainly covered...

In order to study traffic accident influence in long freeway tunnel, a traffic simulation model is established by using VISSIM. It's taken the Jiulingshan Tunnel which is the first long tunnel in Jiangxi Province as the research object. Under different levels of traffic flow and different proportion...

At present, the main method of metering oil well output is transporting all oil to the metering station for centralized measurement in china oil fields, but it is hard to meet the requirements of ground system in convenience, simple and relative reliability. Therefore, an crude oil metering technology...

A new hybrid monolithic column (HMC) was prepared in stainless steel chromatographic column using nitric acid as catalysis and methyltrimethoxysilane as sole precursor. The influences of the precursor ratio, catalyst concentrations, gelation temperatures on properties of HMC were investigated, and the...

With the development of economy, are the main sources of air pollution of sulfur dioxide, seriously affecting the quality of life of the people. Improve the desulphurization is an important part of today's enterprise production. The desulfurization system is complex, high to the requirement of control...

There are some methods to determine accident cost, one of which is the willingness-to-pay method. Willingness-to-pay method use in this research because this method more recommended by developed countries than gross output method which is still used in developing countries, especially Indonesia. Road...

The paper presents the measured data on interfacial tension of bentonite suspensions and strength of a cement stone in water solutions of Frem Giper S-TB superplasticizer. The interfacial tension of water-surfactant-bentonite suspension is experimentally measured at various concentrations of a bentonite...

In order to explore the profound significance of Xi Jinping’s ecological thoughts, the article takes Xi Jinping’s ecological thoughts as the research object, uses literature analysis, comparative analysis and other methods to find origins from Chinese traditional ecological thoughts, Marxist ecological...

This study aims to obtain a game of Wind's Maze Chemistry based on android which is suitable to be used as learning media on main Hydrocarbon subject for eleventh grade of Senior High School’s based on the validity, practicality, and effectiveness of the game. The type of this study uses research and...

With the rapid development of high-speed signal processing devices, the algorithm with large amounts of data can be implemented in real-time. This paper proposes a kind of signal processing system based on five pieces of multi-core DSP. Firstly, the interface circuit and program between FPGA and DSP,...

In the nature, the spider's unique physiological structure and crawling mechanism give it strong adaptability to the rugged irregular terrain. Bionic research on spider is of significance on the development of multiped robots that need to go to some unconventional walking locations. This paper has taken...

The objectives of this research were to evaluate the possibility of metal complexation in generating blue color, and the stability of the anthocyanin from Buni (Antidesma bunius) fruit extract. Four different metals ions (Ca2+, Mg3+, Al3+, and Fe3+) have tested at three concentrations level (0 ml, 0.01...

Solar energy is one alternative of renewable sources of energy that can be used as a substitute for fossil fuel, which will be eventually depleted. Since Indonesia is located at the equator with abundant supply of sunlight all through the year, the use of solar energy as an alternative source of energy...

It is known to all that the application of Proportional-Derivative (PD) control is widely used in various kinds of industrial fields. This paper focus on the research of the output performance stability of the DC motor based on the PD control method. The purpose of this paper is to determine the appropriate  ...

As wind energy has become an integral part of the ongoing energy transition, the scale of offshore wind farms and wind turbines continuously increases, and each turbine is expected to reach higher power capacity. This requires advanced DC/DC converters to meet stringent operational demands. This paper...

Indonesia, an archipelago located on the Asia-Pacific Ring of Fire, has many mountains that attract many tourists, especially mountain climbers. The high interest in mountain climbing is also accompanied by increasing cases of mountain climbing accidents. To reduce the number of mountain climbing accidents,...

In the context of digitalization, to promote the intelligent transformation of water conservancy enterprises and ensure their high-quality development. Given that evolutionary game theory combines game theory and dynamic evolutionary process analysis, it does not require complete rationality or information...

Nowadays, the directions application is often used by many people, this application is very helpful for its users in finding the best travel routes, by simply entering the address code, this application can provide routes that can be passed for various types of vehicles. In Indonesia itself there are...

Deep Learning is a subset of artificial intelligence and machine learning, which is the development of multiple layered neural networks. There are many sectors that deep learning can be applied to such as computer vision, natural languages processing, and even time series data forecasting. One of the...

This research develops a computational approach based on text clustering to analyze election news framing on the Detik.com portal. In the context of elections, media framing becomes an essential instrument in shaping public opinion towards political issues and actors. This research applies the K-Means...

The Palembang City Government established “Charming Palembang” as the city branding for the City of Palembang. In implementation, “Charming Palembang” has not yet become a strategy in shaping the identity and image of the city. This study aims to identify the positioning of “Charming Palembang” in shaping...

This paper discusses the role of temperature and the width heating plate in the FSW jig on the strength of the aluminum alloy 1100 welded joint. FSW welding for aluminum alloy 1100 (AA 1100) material at this time has not yet produced optimal weld joint strength, so it necessary to study to improve the...

The western part of Karangasem Regency is an area that has sufficient water resources to be used as irrigation water and clean water, while the eastern part is experiencing problems due to a lack of existing water sources. The development of clean water services in this regency is experiencing problems...

The formation of ancient villages results from the coupling of natural and human factors. Under China’s rural revitalization strategy, protecting ancient villages is practically significant. Using Dongjing Village in Guanyang County as a case study, this research proposes a “cellular-type” village concept....

A new type of hyper chaotic oscillator is proposed based on the typical Colpitts chaotic oscillators. The chaotic signal is generated as the excitation signal of the wireless transmission system. Two types of Colpitts chaotic oscillation signals are compared from three aspects. We can find that the hyper...

Valve remote control system (VRC) and level gauging system (LGS) are important equipments on liquid cargo vessels. This paper introduces the technology and the selection of VRC and LGS especially for liquid cargo vessels. It also shows the integration among VRC, LGS and ship automation system. The solutions...

Aiming at the problem of the workpiece surface hardness influenced by the fatigue wear of steel ball during strengthen grinding processing, experimental and mechanical analysis were performed. The relationships between the radius of steel ball and the stress and strain in the machining process were analyzed,...

Taking the design wave elements prediction of West Kalimantan strait as an example, we adopted two methods, the numerical simulation method and the design wind speed method, to determine the deepwater wave elements of different return period. The results of two methods showed that there are some differences...

This paper presents the intrinsic fluorescence spectra characteristics of tryptophan, tyrosine and phenyloalanine measured with 3D fluorescence spectrophotometer. Two strong fluorescence peaks of tryptophan locate at ex/ em=230/348nm and 280/348nm, three strong fluorescence peaks of tyrosine locate at...

Epoxy resin composites were prepared via in situ polymerization of diglycidyl ether of bisphenol a epoxy monomer and 4,4'-diaminodiphenyl methane, using multiwalled carbon nanotubes and hexaphenoxycyclotriphosphazene as additives. The morphologies of the specimens were investigated using scanning electron...

Let p and q be prime with and ,and let . If , then is a congruent if and only if the equation has rational solutions. And The Birch Swinnerton-Dyer conjecture predicts that the rank of is one.

Computer vision imitates human vision ability to perceive real world. Computer vision has proven its part from autonomous navigation on martin surface to histopathology images recognition. In practice, histopathologists examine microscopic imagery of diseased tissue and diagnose on the bases of malignancy,...

A new load out method with self-propelled modular transporter for jacket of offshore platform is introduced. The requirement of route selection, method axle force check, driving force check, stability check, friction force check and temporary structure design related to SPMT part during load out are...

Open source software and proprietary software are in a coexisting and competitive relationship in today's software market. Through the comparison of the asymmetric structure of the two types of software, this paper analyzed their competitive relationship in market entry order, product price asymmetry,...

In order to fully understand the shear lag effect variation of concrete composite girder with steel truss webs, the 3D finite element model is established with general finite element software ANSYS, considering three typical load models of mid-span concentrated load, two points symmetrical load and uniform...

In the variable cross-section continuous box girder bridge, due to the complex internal force influence surface of the load, the effect of the box beam geometry on restrained torsional stresses changes along the span of the bridge. Therefore, unified partial load coefficient should not be used over the...

A Space Teleoperation Visual Recognition System is developed. It is used to recognize an object and measure the 3D pose. A highly efficient no iterative approach is used to calculator the external parameters in camera calibration. It divides all reference points into 3-point subsets in order to achieve...

With the increasing outstanding of network security situation, the intelligent network security situation awareness system has been an important weapon in cyberspace battle field, its research and development are also being a matter of great urgency. How to improve accurate rate of situation awareness...

In order to obtain the influence law of mining depth on floor coupled stress-seepage characteristics, the coupled stress-seepage characteristics were studied by numerical simululation. The results showed that when the mining depth increases, the floor failure range progressively increase with expansion...

Aiming at the shortcomings of the traditional honeypot on massive global scanning attact, this paper constructs a novel network secure system based on honeypots (NSSH). Afterwards, this paper discusses the classic architecture of NSSH, which consists of four parts, firewall/router, analysis network,...

Copper hydroxyphosphate (Cu2(OH)PO4) with uniform 3D flower-shaped microsphere hierarchical superstructure was successfully synthesized through a template-free hydrothermal route with ammonia as alkali and complexing agent. This approach provides a facile strategy to synthesize copper hydroxyphosphate...

This study focused on the co-pyrolysis of sewage sludge and rice straw in order to improve syngas yield and energy recovery potential. The singular pyrolysis of sewage sludge and rice straw was firstly investigated under varying operating temperatures. Then the synergetic effect on yield of combustible...

In order to maximize the use of existing mobile communication network resources and enhance the efficiency of mobile communication network optimization, we introduce the cloud computing model. Combined with the situation of mobile communication network optimization, this paper elaborated the characteristics...

The acid waste water produced in the process of mine exploitation has greatly increased the migration and transformation of heavy metals, through the waste water and rainwater flow to the soil, did great harm to the use of the soil. Farmland soil around the mine area was studied in this paper, by using...

In response to the quality and the ability to survive for the guided ammunition in a complex electromagnetic environment, the guided ammunition quality for storage and use are analyzed from the design of the ammunition, structure wiring and protective material for the static electricity, lightning electromagnetic...

Objective to explore the clinical infection trend, drug resistance and nursing intervention measures of Acinetobacter baumannii (Acinetobacter baumannii, ABA) in the pediatric intensive care unit (pediatric intensive care unit, PICU). Methods the separation rate and drug resistance of ABA in various...

Numerous studies indicate that dispersive clay minerals are mostly composed of montmorillonite, while the major mineral composition of dispersive clay is illite in Zhejiang Province. Based on the particularity of dispersive clay soil in this region, A series of experimental study and comparison and analysis...

Clustering provides an effective way for data gathering in wireless sensor networks. In this paper, a new distributed clustering algorithm called DFSC that maximizes lifetime for energy heterogeneous wireless sensor networks is proposed, in which the cluster head selection approach is based on the concept...

A traditional assumption underlying most data converters is that the signal should be sampled at a rate exceeding twice the highest frequency. In this paper, we employ a method for low-rate sampling of multi- band signals via applying periodic nonuniform sampling in shift-invariant spaces generated by...

Differing from the general gear drive, movable teeth transmission is a new type of planetary gear mechanical drive, which used to transmit rotary motion and power between two shafts with same axis. The tooth profile is very vital and the meshing quality of the central gear, shock wave device and swing...

This research investigated the phenomenon of cascading trip in a power grid. First, aiming at assessing the backup relay protector of the current type, this paper investigated the relationship between cascading trip and nodal injection power by comprehensively analyzing the action of the relay protector...

Taking Xiangrong Liu, a Chinese female shot athlete, as the research object, the biomechanical analysis of the technical action of its backward slide-shot putting using the method of sports biomechanics was carried out. The study found that: in the gliding stage, Xiangrong Liu’s maximum speed of velocity...

The main challenge in following robot is solving the real-time user localization problem. In this paper we introduce our solution for it together with our whole robot system called “FOLO”. Using extra-tool (such as Bluetooth) may cause inconvenience in interaction; 3D detector plus tracker ID approaches...

In order to solve the problem of automatic sampling of coal, this paper introduced the MCYY2000 6-DOF mobile coal sampling robot and analyzed its kinematics. This paper first introduced the mechanical structure of the 6-DOF sampling robot, then the forward kinematics equation of the sampling robot was...

Target-centric warfare is a new warfare mode and means with various intelligent entities that form an adaptive loop. Based on analysis on the process of target-centric warfare, agent and multi-agent system technology is used and agent-based target-centric warfare models including interaction protocol...

The shipboard electro-optical tracking system is facing the severe ocean climate environment. So it is necessary to consider the design of the carrier-based optoelectronic tracking system to prevent corrosion, moisture, mildew and salt fog. In addition to the passive protection of the photoelectric tracking...

For three-axis sculptured surface machining, a tool path generation method based on the feed directions of maximum machining strip width is proposed. We use a B-Spline stream function to reconstruct the vector field of feed directions, and give the initial tool path by one of the iso-lines of the stream...

This paper first summarizes the development and evolution of LTE system and cluster communication system, analyzes the random access technology in LTE system, summarizes the access flow of cluster system, compares the random access and random access of LTE In order to access the LTE system, it is necessary...

Porous materials with high specific surface areas was prepared by a combined method of microwave drying carbonization and activation processes, in which castor rhizome was used as carbon source, and KOH was used as activator, respectively. The porous material was added to the cigarette filters and the...

Project after the authenticity of the evaluation results to a large extent depends on the rationality of the evaluation method, this article in view of the construction project post-evaluation of current method is a systematic research, and put forward the factor analysis method used in the construction...

"Random Forests" is an algorithm developed by Breiman and Cutler in 2001[1]. It runs by constructing multiple decidion trees while training and outputting the classes that is the mode of the classes output by individual trees. It has improved performance over single decision trees, and it is much more...

The article is devoted to the study of various interrelations generalized by ecotourism and linguistics in the ecological paradigm, and reflected in the French tourist discourse. We have pointed out and proved that the demand for tours to Russian ecoregions and all over the world is growing dynamically....

The abstract should summarize the contents of the paper in short terms, i.e. 15–250 words. The advancement of lighting technology promotes efficient, durable, and energy-saving LED lamps for street lighting. However, monitoring LED drivers, particularly Switch Mode Power Supply (SMPS) systems, remains...

Every construction work inevitably has some impacts for environment and society. One of construction works is the construction project of Elevated railway construction from railway station of Solo Balapan to railway station of Kadipiro. Therefore some measures are needed to remove negative impacts by...

With the continuous development of information technology and science and technology, software development management model consists of four stages, host terminal, file server, C/S, and B/S. The first two software development models have been phased out of history, and the latter two models have been...

There exists several characteristics in imbalanced dataset, such as classes imbalance, between-class imbalance, overlapping, influenced noise, multi-classification with class imbalance, etc., which will greatly influence the classification performance of algorithms on imbalanced datasets. So far, the...

Compared with conventional combustion, catalytic combustion as a developing technology could make the pollutants emissions to zero. The experimental studies and theoretical analysis have been involved in this essay to study on if catalytic combustion furnace can burn overglaze color.In this paper, by...

The Ultra High Voltage power system plays an important role in alleviating the energy crisis. However, due to the high voltage level and complex operation, it will bring disaster to the system once the power grid fails, causing cascading failures and large area power outages. In this paper, we study...

Production technology of 12kv solid-sealed polar pole is mainly expounded, including mould installation, spares preparation, mix preparation, injection molding, after treatment, assembling, inspection, etc., with focus on spare preparation, mix preparation and injection molding.

In this letter, the localization of coherently distributed (CD) is considered. With regard to the direction finding of CD source, the conventional method distributed source parameter estimation (DSPE) can provide stable estimation performance, while it also requires a complex two-dimensional spectral...

In modern cities, power distribution systems are very complicated systems consisted of 3-phase lines, 3-phase transformers, electric poles, etc. and those facilities are distributed among lots of buildings, roads, and trees. Tracing technology of transformers and wires is a challenging issue. Power line...

People who work in the field of actuarial science pay more and more attention to the risk model with dividend strategy, it has become one of the hot topics in the current actuarial science research. In this paper, we want to study the Gerber-Shiu expected discounted penalty function due to oscillation...

From Part 1, the experimental data of chloride threshold level (CTL) are obtained. With the experimental data, the mechanism of influence of temperature, pitting potential, w/c ratio and air-entraining agent on CTL are discussed in this paper. Lower temperature causes higher CTL by reduce the rate of...

The objective of this paper is to investigate the effects of gefitinib as a new stent coating material on proliferation of smooth muscle cells and the expression and phosphorylation of EGFR/Akt protein. Rat smooth muscle cells were cultured in medium with gefitinib (10-2 mol/L-10 mol/L) for 24h-72h....

In order to improve the dispersive and lipophilic properties of Nano-Al2O3 in composite coatings, surface modification of Nano-Al2O3 by titanate coupling agent TC-114 was researched. The modification effect on Nano-Al2O3 was measured with the activation index and the lipophilic degree. The influences...

Nowadays, Hadoop distributed file system as a distributed storage system, has a good effect on the storage of large files. However, there is a natural flaw in the storage of small files: storing a large number of small files will produce excessive metadata, resulting in namenode memory bottlenecks; frequent...

The batting point of badminton plays a very important role in the whole badminton match. At the same time, the accuracy of the batting point is also the core content of the badminton course in colleges and universities. Based on the single closed loop badminton serve control method, the batting point...

This paper states the common stealing electricity types, it is remote control stealing electricity, resistance is strung into watt-hour meter, there is space of stealing electricity, obvious short current coil, interference of high power electric signal and using electricity bypass the metering device...

The article considers the axisymmetric problem concerning the explosive compaction of a mixture from aluminum, sulfur and carbon placed into a cylindrical steel ampoule. The inert substance (graphite) is added to the mixture to avoid the reaction between aluminum and sulfur. The numerical computations...

In this paper, the model of transformer DC bias simulation is established based on EIC principle. This model considers the hysteresis loss and eddy current loss of the transformer core through the J-A model and the Bertotti theory. Based on this model, the effects of DC bias on the operating characteristics...

The dynamic response characteristics of the structure are affected by the nonlinear term in the theodolite structure with supporting shaft and bolt fixed connection. The harmonic term caused by nonlinear response has important influence on the measurement accuracy of optical system and the tracking stability...

This paper applied the theory of thin elastic shell and fundamental equation of fluid mechanics, combined with united Lagrange-Euler method, to establish the kinematic equation and dynamic equation of contact surfaces between fluid and solid. The linear equations of plate's normal displacement coefficients...

The paper constructs the model of nuclear materials and fast neutron multiplicity counter, and obtains the mass of nuclear materials by utilizing the equation of fast neutron multiplicity. Via GEANT4 tool kit, the paper obtains the simulated results which are identical well to the results calculated...

In disaster conditions, people often fall in panic. When the population panics raise to a certain extent, they can aggravate the confusion degree of crowd evacuation, leading to greater casualties further. Therefore, this paper proposes a non-linear dynamic model describing crowd panic propagation, to...

This research was conducted to develop android-based comic learning media and describe the increase in geometric thinking skills after learning to use android-based comic learning media. This comic development process uses the Gall and Borg development model. The stages were needs analysis; product planning...

Torrefaction is a thermochemical process to improve the properties of biomass as a solid fuel. In addition to solid fuel, the torrefaction process also produces a by-product in the form of liquid smoke from condensation results. In this study, an analysis of lignocellulose and Fourier Transform Infrared...

With the deepening trade between China and South Korea, it is imperative for China and South Korea to carry out land and sea multimodal transportation. This paper takes the path of multimodal transportation between China and South Korea as the research object, analyzes its development status, and determines...

In the Research of DIPA Grant in 2019, the size of the hydraulic ram (hydram) pump used in Pakandangan in Padang Pariaman Regency was designed. In this area, a water source had not been utilized to irrigate the paddy field of 10 hectares since it was located higher than the water source. The designed...

The tamping method is a manual soil compaction technique, that involves the application of repetitive localized impacts using a rod to compact soils. Although the compaction of sandy soils in a moist state is widely used in laboratory and field conditions, the compaction of sandy soils in an underwater...

A project is a business or activity that is complex, non-routine, limited by time, budget, resources and performance specifications designed to meet consumer needs. The Water Treatment Plant (WTP) construction project in Pulau Pinang Village, which has a capacity of 50L/SPAM, affects access under public...

With the increasingly fierce competition in China's construction industry, how to stand out in the bidding process has become a priority issue This paper takes the remaining project of a certain old community renovation as an example, based on the real evaluation data, and uses The logistic regression...

Ag/Cu bimetallic nanoparticles were synthesised in a few minutes using 1-heptanol as reducing agent in a microwave reactor. The products of microwave heating and oil-bath heating were compared. Experimental results decide that, it is easier to obtain a higher degree of crystallization, smaller size distribution...

This paper is designed to promote the development of local economy in Maoming. In order to explore the relationship between agriculture and the growth of the local economy, the local GDP and the production of city's main agricultural products in 2000-2012 are selected to yield co-integration test. By...

During the approach phase, the aircraft is prone to human error caused by the occurrence of unstable approach. In order to facilitate the study of the flight quality of the approach phase, this paper proposes to study on extraction of QAR key parameters in approach phase. The QAR parameters are classified...

Aimed at the situation that channel source is wasted seriously when traffic is not uniform belong all of the nodes in a TDMA net, a dynamic TDMA protocol (CS-TDMA) utilizing channel sense is was developed. The CS-TDMA protocol based on the TDMA protocol frame, and the node with CS-TDMA protocol counts...

Indoor air pollution is a serious problem that harms people's health. Indoor environment monitoring system could make contribution to detecting and improving indoor air quality. However, besides the high cost, the existing air quality detectors also get tricky problems with real-time monitoring and autonomous...