Advances in Engineering Research

The thermostability of Cu(II)-1,10-phenanthroline complexes was studied by the thermogravimetric analysis, and their catalytic properties were evaluated in oxidative carbonylation of methanol to dimethyl carbonate. It was found that the copper coordination environments and the thermostability of the...

Most colleges and universities have established an open lab, but there are two major problems, one is uncertain identity into the laboratory personnel, and the other is the safety of laboratory instruments. Using RFID and Zigbee technology, this paper gives the design of laboratory instruments management...

Taking lining structure crack diseases on one line of Beijing subway as the research object, using indoor model test method to studying lining structure damage rule and crack maintenance effect. Through experiment, it was concluded the main conclusions as follows: Through the contrast test could be obtained...

Using MODIS thermal infrared data of satellite and geostationary satellite thermal infrared brightness temperature data for Wen ' an 5.1 earthquake in Hebei province during 2006, the temporal and spatial characteristics of the earthquake were systematically calculated and analysed. Studies show that...

The assessment of climate change due to global warming is a worldwide public concern. The impact of climate change on water resources is worth exploring for understanding the interaction between the climate and water resources and for decision-making in water resources management. In this study, a new...

The inverters consisted of Power Electronic Devices are widely used in dredger, which makes Dredger Power System lots of Upper Harmonic. In order to achieve precise harmonic monitoring of cutter suction dredger power system, the paper proposes a power harmonic monitoring system based on Robust Kalman...

In this paper, we researched the influence of tensile rate on the tensile fracture process of PA6. The results showed that with the increase of tensile rate, the yield strength of PA6 was on the rise, and the elongation at break was on the decline. The elongation at break declined sharply when the tensile...

Well dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid EDX (energy dispersive...

In order to improve the processing properties of starch, maleic anhydride grafted starch prepared by solution polymerization,With starch and maleic anhydride as raw materials. The structure of the material have been characterized by Fourier transform infrared spectrum(FTIR) and scanning electron microscopy...

In connection with the increasing number of facades additionally equipped with contact thermally insulated system the number of cases in which facades are depreciated with microbiological vegetation has raised. The vegetation of microscopic algae, fungi and blue-green algae on the outer surface of perimeter...

To improve the impact toughness of the perforating gun pipe, subcritical quenching processes were designed and the influences of process parameters and the initial heat treatments on the mechanical properties of the steel were investigated. The results show that the hardness of the steel with an initial...

Forest was source of biodiversity. Forest conversioninto plantation area causes disruption to existence of soil mesofauna such as Collembola and Acarina. Soil mesofauna have a role to decomposition of organic matters in soil. Purpose of this research is to know the diversity of soil mesofauna and relation...

Target seeker is a key component of missile, whose tracking performance in real guidance phases can be guaranteed by performance testing in its design stage. Generally, multi-sets of equipment are used in conventional testing method, which takes on some disadvantages of sophisticated operation and low...

This paper presents a broad overview of the various sensor placement strategies to diagnose discrete-part manufacturing system. Due to the technical complexity, the performance of sensor system would be cursed by any modules of sensor placement strategies. Therefore, the current state of the sensor placement...

The tasks of structural synthesis and circuitry analysis of static converters are always fraught with difficulties in solving, because they contain elements with non-linear voltampere characteristics and allow a huge number of alternatives fixed relationships combinations (topological structures) between...

A new method for treating U-containing wastewater and recovering of uranium simultaneously by electro-deposition was proposed. The complexity of adsorbent preparation and difficulty in uranium recovery that existed in traditional adsorption method are solved by electro-deposition approach. The iron and...

Facing massive house rental information, the tenants consider many factors. Usually, it is difficult for them to make an optimal strategy. Considering the large amount of storage, fast computing and other characteristics, if introducing computer technology to assist in generating and evaluating strategies,...

Under the background of the current frequent emergencies, the problem of the processed grain emergency storage has the practical significance and theoretical value. This paper considers the facility location efficiency for processed grain emergency storage and coverage radius demands satisfaction differences,...

Aiming at the low efficiency and imperfect management system of urban parking system in China, a new urban intelligent parking system based on Internet of Things is designed. The system will be radio frequency identification technology, wireless sensor network detection technology and information processing...

Writing fluidity is one of the most important quality inspection items in the ball-pen production. In order to realize the automatic inspection of ball-pen writing path quality, this paper developed the methods of threshold segmentation and morphology in image processing by Halcon and Visual Studio....

The development of the Industrial Revolution 4.0 has brought about a shift from traditional to digital work in various industries, including automotive. This article discusses the impact of digital transformation on operations in the automotive industry, particularly in terms of maintenance. To keep...

In 2021, Sriwijaya State Polytechnic began using pre-cast technology to reduce the costs of construction, especially for affordable housing. The next phase of this initiative involves the development of materials for the components/items that make up puzzle houses. The puzzle house component being developed...

Both the increasing human population and energy consumption are the main factors which cause energy crises. In this situation, we need new alternative energy source. DSSC (Dye Sensitized Solar Cells) has great potential to develop because the dye as a light catcher can be directly applied in daily life....

Intersection is a very important part of the road system. It is the concentrated part of all kinds of road traffic and one of the places where accidents are most likely to occur. Therefore, the design and management of intersection is very important for urban traffic flow and safety. By combining VISSIM...

Swarm intelligence (SI), a nature-inspired distributed computational approach, has emerged as a promising solution within the domain of cooperative driving. This research paper investigates the theoretical foundations and practical implementations of classical swarm intelligence algorithms, focusing...

Gas turbine thermal efficiency degradation presents significant operational challenges, with uncertainty persisting regarding the relative contributions of underlying machine health versus compressor washing maintenance to performance recovery. This study specifically aimed to identify the dominant factor...

Use of wasteglass as a partial replacement to cement in concrete has potentially a significant potential in materials innovation to produce a sustainable infrastruct system that is not only environmentally friendly but also energy and cost efficient. This research shows how it is effective using waste...

The purpose of this study was to obtain a visual thinking profile of deaf students in counting. The research method used is qualitative research. The research subjects were students of SLBN Karangrejo Wungu Madiun. Data were collected through a task-based interviews in a semi-structured manner. Time...

The development of a new technology shifts conventional shopping behaviours from offline shopping to online shopping. The rise of e-commerce market and effect of the COVID-19 pandemic accelerate an expansion of e-commerce integration, this condition provided customers with access to variety of product...

This study aims to analyze the relationship between variables that affect the smooth supply chain of heavy equipment in road construction projects in Aceh Besar District. Common problems in heavy equipment distribution are often caused by a lack of coordination between the parties involved, as well as...

The Savonius turbine has advantages, including a simple design, unfettered incoming wind direction, can spin at low wind speeds, and start rotation without additional equipment. However, this turbine design has low efficiency, so many researchers have tried to improve it. The primary research in this...

The synthesis of Agentic AI, Retrieval-Augmented Generation (RAG), and Knowledge Graphs, is a paradigm shift in e-commerce systems of enterprises. The current paper suggests KG-RAG-Agent, a new framework that is based on the combination of autonomous AI agents with graph-enhanced retrieval methods and...

A series of nanostructured Zn2GeO4 were prepared in a low temperature solvothermal process and characterized with transmission electron microscopy and X-ray diffraction. Then, the formation mechanism of nanostructured Zn2GeO4 was discussed. At last, their electrochemical behavior was investigated. The...

Low power spy type wireless GPS tracking terminal is a positioning device which can receive space GPS signal by the host tracker, through GPS signal analysis, their own geodetic coordinate can be calculated, then the device will report its positioning information to monitoring center by GPRS wireless...

Considering the constant development of modern information technology, various kinds of data possessed by people have increased in a geometric and explosive way.Big data mining technology is a key technology for obtaining relevant information and has become a focus of study in information bound. As data...

Aiming at the problem that the cluster head node overload and cannot effectively control the edge node based on routing protocol in wireless sensor networks. We designs a kind of ellipse model with double cluster heads and uses Matlab to carry on the network simulation experiment. Through the analysis...

This paper systematically analyzed resource application allocation process and the timing relationship of resource application in aeronautical mobile communication system's link layer. This paper aimed at a new generation space ground data link technology which was called L-band digital aeronautical...

A kind of backstepping controller is designed for a kind of pitch channel model of hypersonic aircrafts. The main task is to realize attack angle tracking of hypersonic aircrafts. Compared with traditional linear design method, the main difference is that the nonlinear model is directly used in the design...

It is worth studying that how to utilize image features so as to achieve the satisfied result of CBIR (content-based image retrieval). To solve this problem, this paper proposes an adaptive image retrieval algorithm based on color feature and texture feature, in which the two kinds of features are combined...

A new method for proving to be an isomorphism was presented. Based on the method, an algorithm was presented to prove to be an isomorphism, which can be implemented in the GP/PARI.

The aim of this paper is to research variation of phenolic yields in bio-oil and the effect of interactions of three components in biomass, fast pyrolysis experiments were done with cellulose, xylan (as an alternative to hemicellulose) and lignin in tube furnace at different temperatures. Phenolic yields...

Equipment used at the enterprises implementing oil and gas technologies is potentially hazardous and should be of high degree of reliability. Reliability of equipment reduces the number of defects appearing during the operation process. One of hazardous and unpredictable defects is fracture. If there...

The three-dimensional shock-bubble interaction is investigated numerically using high-resolution piecewise parabolic method, in which both the viscous and turbulence effects are considered. The bubble is fixed at the same size and is accelerated by a planar shock wave of different strengths, in which...

The Ni7Cu3 alloy was prepared by arc-melting. The magnetic and magnetocaloric properties of alloys had been investigated. The Ni7Cu3 alloy was formed in a single phase with Cubic Ni-type crystal structure. The sample undergoes a second order magnetic phase transition from ferromagnetic (FM) to paramagnetic...

A harmonic error measurement system which can simulate the actual operating conditions of electronic instrument transformer was established for electronic instrument transformer harmonic error measurement. The system consists of High-power current and voltage harmonic source which is used to output fundamental...

Searching a lost plane on seas usually is a task hard to implement in most situation, due to scarce data and widely sea. To overcome it, an optimization model is proposed. The proposed approach is based on the details and can govern the key information in the searching. Meanwhile it is easy to be understood...

Steel corrosion in concrete is a process of electrochemistry. When chloride content at the steel surface exceeds the chloride threshold level (CTL), the steel begins to corrosion. The CTL is one of the key parameters needed for service life prediction of concrete structures. Based on the electrochemistry...

Particle system dynamics is the well known method that can be used in wide range of spatial scales - from molecular to astronomic. However, numerical experimentation with constructional composites requires adequate representation of peculiar forces that are due to solvation shells, steric conditions...

To facilitate the airfoil design, this paper studied the methods of constructing analytic functions to generate airfoil profiles. By Taylor series, Joukowsky airfoil function was simplified to a simple expression, and its coefficients and exponents were redefined as general constants. A series of simple...

In order to improve the adsorption performance of Attapulgite (ATP) on dyes. The ATP activated with hydrochloric acid was organic modified with silane coupling agent KH570. And the modified attapulgites was characterized by Fourier transform infrared spectroscopy and X-ray diffraction technique. By evaluating...

This paper analyses the integrated energy service from the service point of view, combs the service content, typical service process and so on, and puts forward optimization suggestions. Aiming at the problem of differentiation, this paper puts forward differentiated service strategy and differentiated...

With the rapid development of oil & gas pipeline construction, the pollution accidents are increasing in quantity. The safe operation of pipelines has aroused widespread concern. This study collected the historical cases of environmental accidents in the domestic oil & gas pipelines in recent 10 years....

A CAN bus based data acquisition system design method is described in this article. Based on the theory of data acquisition and monitoring system, a high-performance, high-reliability, real-time CAN field bus is adopted, a high-performance, low-power Cortex-M3 microcontroller is used as the control core,...

There is no record on the prevalence of parasites of snakes in Mizoram. This study was undertaken in an attempt to identify common gastrointestinal parasites in the king cobra Ophiophagus hannah. In this preliminary survey, necropsy was performed on four individuals collected from different localities...

The purpose of bridge construction monitoring and control is to ensure control indicators within allowable range by measuring and correcting, and to ensure the safety and quality of the bridge during the construction stage. Based on a prestressed concrete composite box-girder with corrugated steel webs,...

The article is devoted to the research of strength properties of single abrasive grits of various shapes. The existing methods for determining the strength of abrasive materials are analyzed. Data are presented on the pattern of stresses arising in abrasive grits under various schemes of applying loads...

To investigate the relationship between glycosylated hemoglobin (HbA1c) level and diabetic retinopathy (DR), we selected 260 patients with type 2 diabetes mellitus in Affiliated Hospital of Binzhou Medical College from January to December in 2016.These patients were examined by HbA1c and other biochemical...

The development of economy and society drives continuous progress of electronic technique, and electronic circuit simulation technology level gradually improves. In practical operation process, electronic circuit simulation technology is required to guarantee high efficiency of electronic development....

This paper introduces the retrofit of the condenser of a 300MW high backpressure heating turbine. According to the test data of high and low backpressure situation, we calculated the operation indexes of the condenser at these situation. The condenser terminal temperature difference is both small at...

In this paper, we try to designing a new toll plaza and the goal is to maximize the throughput, minimize the cost and accident times. Taking highways in New Jersey of the United States for example, the Queuing theory and Analytic Hierarchy Process are used to analyze the model.

Coherent Fast Frequency Hopping (FFH) spread spectrum signals effectively improve the ability to fend off forwarding jamming and interception of a satellite anti jamming communication system. However the acquisition of FFH signal is influenced by the frequency-selective ionosphere delays. The global...

Two experiments of capillary suction and chloride penetration were carried out on the concrete specimens after exposure to natural cooling and spray water-cooling, and absorption coefficient and permeability coefficient were used to estimate the combining influence of cooling mode and temperature. The...

Adams, Simulink, and analytics combined method is created to predict the hoisting operation of crane ships. The flexibility of the boom can be modelled in Adams with a mesh file created by Ansys APDL and 3D visualization can be fulfilled in Adams. With this method, the model of "Offshore Oil 201" is...

The critical thinking skill is needed to analyze environmental problems that occur. Along with the increasing environmental damage due to human behavior and activities, a solution is needed that must be sought immediately. Through the learning environment, these skills are used to analyze problems, look...

Research on the development of sustainable alternative fuels to replace fossil fuels has received serious attention because of the increasing world oil prices and environmental concerns. This study focused on the development of Dual Fluidized Bed Gasification technology, especially the cold model performance...

The incorporations of synthetic fibers have raised worrying concerns, so an alternative material which is inexpensive and ecological resources is proposed. Kenaf fiber has high tensile modulus and elongation at break and potentially to be used as reinforcing fibers in FRP composites to replace synthetic...

Gobi Lakes Valley is located in central Mongolia which is considered to be one of the regions where dust storms occur most frequently in Mongolia. We are planning to clarify both erodibility and erosivity in the valley. To accomplish this objective, we have started field observations of meteorology,...

This project was funded by the “Xi’an University of Architecture and Technology SSRT (Project Approval No.: X202410703415)”. In this paper, a cell balancing control strategy based on bidirectional DC/DC converter (BDC) and Buck-Boost topology is proposed to improve the stability and efficiency of wind-solar-water...

Shield tunneling machines are powerful tools for underground transportation construction, but working in hard rock environments can exacerbate the wear and tear of their rolling cutters. In recent years, the rock-breaking performance of toothed rolling cutters has gradually attracted attention. This...

The use of e-learning has become common in educational institutions. This is further supported by the obligation to implement online education during the COVID-19 pandemic. E-learning is a system that is anticipated to not only replace traditional learning techniques and resources but also to introduce...

The construction of power transmission project has the characteristics of many points, long line, wide area, high cost and large investment, which also leads to many risk factors faced by power transmission and transformation construction, especially the risk factors of construction progress. Through...

With the policy orientation of national carbon peak and carbon neutrality, the design and construction of sponge cities should inevitably have corresponding responses. This article discusses the types of carbon emissions, carbon emission boundaries, and difficulties in quantitatively calculating carbon...

This work is to determine the leading position of liquefied natural gas by comparative analysis with renewable energy sources as competing energy industries with a development perspective until 2035. Hypothesizing an unknown energy source capable of replacing traditional energy.

The railway level crossing is a meeting point between a highway and a train. This analysis is conducted by identifying and evaluating the components of the Concrete Level Crossing feasible according to the dynamic loads by train and vehicle. Evaluation of Concrete Level Crossing is by observing the condition...

To investigate the functional relationship between the efficiency of light pipes and the length-to-diameter ratio, this study simulated and analyzed the relationship using HOLIGILM software under standard overcast sky conditions, based on the latitude characteristics and light climate conditions of Guangzhou....

This paper aims at finding an implementation path to promote the coordinated development of technology capability and technology management ability. This paper analyzes the technical ability and management ability, and their relationship in the equipment manufacturing industry briefly. Through deductive...

Mechanism of aeroelastic control is more complicated than that of vibration control based on piezoelectric material, and analyzing the control mechanism is of great significance for the research of aeroelastic control. The macro fiber composite (MFC) actuator is modeled by the load simulation method....

Energy efficiency and power density become main qualitative indexes of power electronic systems. This paper deals with derivation of the optimal design of high frequency transformer, which forms very important part of the dc-dc converter. Design procedure focuses on the possibilities of converterïs power...

This paper mainly discusses the imaging features of remote sensing images, as well as the core target detection technology of image application, and uses several traditional image detection algorithms to experiment. The experiment results show, for unspecific targets, the edge detection algorithm based...

Biological phenotypes of mutant strain 1681 that was the pathogenicity-reduced strain in Colletotrichum gloeosporioides of Stylosanthes guianensia were analyzed by testing growth rate, colonial morphologies and sporulation ability. TAIL-PCR was used to identify the T-DNA integration site and the genes...

Image processing system based on ARM is a faster, smaller and more flexible application. Based on the analysis of human face and eye features, a new eye location algorithm based on ARM embedded system is presented. Firstly, the methods of histogram equalization and median filtering are used for the image...

In this paper, hydraulic replacement system of the damaged tower material is researched. The hydraulic replacement device is set out along main material; using the reinforcing plate and connecting bolt holes of double column battens angle steel tower to design the hydraulic replacement system for damaged...

With the rapid development of power transmission and transformation projects in China, steel supporting structure has already became the most popular structural form for these structures, and high-strength steel (normally means the steel with the nominal yield strength in the scope of 460MPa and 1100MPa)...

The mechanism of the catalysts for electro-catalysis of formic acid fuel cell is introduced,the recent advances of the Platinum(Pt)-based anode catalysis and the influence of the catalytic activity of formic acid fuel cells are analyzed, providing direction of selecting the potential Pt-based anode catalysts...

This paper through the study of the hydraulic cylinder test system, for the low-automation, low-automation, and inconvenient of old Hydraulic Cylinder Test bed, designed a set of hydraulic cylinder test bed system based on servo control. In the servo system the industrial computer as the upper machine,...

The design of a very compact asymmetric coplanar strip (ACS) feed printed antenna with resonators for WiMax/WLAN applications is presented. The antenna is simply formed by a U-shaped slot embedded at the center of the asymmetric coplanar strip, rectangular split-ring resonator (SRR) embedded on the radiating...

In the visual axis stabilization system under the background of the shipboard, it is necessary to use the high-frequency and low-frequency of the FOG output signal, respectively. For the practical application, this paper proposes a method which contains de-noising and signal separation. This paper analysis...

Under the condition of unchangeable reaction time, the dosage of initiator and chain transfer agent, the molar volume of unsaturated double bond, we synthesized a series of polycarboxylate superplasticizer via free radical polymerization. These polycarboxylate superplasticizer had a similar structure...

There are a huge amount of historical Chinese rubbing images in different library that have not been exploited electronically. However, many invaluable collections of rubbing images are already digitized and indexed for consulting, exchange and distant access purposes which protect them from direct manipulation....

The yield stress is a key rheological parameter of thick paste and critical design parameter of the high pressure pipeline system. Take coal slurry as an example, whether using vane method or curve extension method, the yield stress both exponentially increase with concentration increasing, but the data...

The development of construction technology today, allowing construction of high-rise building that has 20 floors or more simply the floor 5-7 cycles /day, so the time of completion of construction of the building quickly. The implication aspects of cost control, quality, time should be more strict and...

Lots of built or building dams, especially the high arch dam, located in the Southwest China with abundant hydro-power resources. Most of these dams have the characteristics of “High head, Large discharge and Narrow river valley”, therefore, the security researches of energy dissipation were always...

Non-steel-cell joint section is a common way to connect the steel beam and the concrete beam in steel-concrete hybrid girder bridge, and the PBL connector with large rigidity is usually adopted in non-steel-cell joint section. Shear resistance of PBL connector determines the success of joint force transmission....

Diamond coated tools of cemented carbide substrate with high Co content are extremely useful for machining difficult-to-cut materials. However, it is very difficult to deposit a well-adherent diamond coating on WC-Co with high Co content because of the strong catalytic effect of Co. In this work, a new...

In order to solve critical process parameters characterize aluminum grating is proposed to optimize the impact of stress calculation values are based on a nano-indentation experiment - Method strain relationship parameters. By establishing numerical approximation model to fit the experimental data of...

In this study, six highly intelligent reinforced cement mortar (HIRC) test specimens were fabricated by reinforcing the cement mortar with garnet, fiber (nylon and polypropylene), and shape memory alloy (SMA). The objective was to examine the effects of the number and position of the reinforcements on...

The fault of AC bus in HV (high-voltage) AC-DC hybrid system can cause consequential commutation failure in converter station, and it affect the correct operation of the current stability control device. The mechanism of phase commutation failure is explained in the paper, and the variation of each electrical...

The properties of La0.5-xNdxBa0.5CoO3 (0≤ x ≤0.425) has been investigated. All samples show a cubic structure at room temperature. The Curie temperature TC and the estimated molecular magnetic moment of the samples at 5K decrease monotonically with increasing Nd-doping level. The results are discussed...

Based on analysis of hydrocarbon resource potential, geological structure aspects and results of geological survey in the North-Caucasus oil-bearing province, first-priority directions and targets of geological exploration works are suggested in order to accelerate the preparation of discovered hydrocarbon...

The pneumatic part of the lamination machine is presented in the paper. The type of cylinder is introduced. The parameters of pneumatic device are designed. The parameter design of the pneumatic device of the box cover, the design of the parameters of the lifting pneumatic device for the cylinder, and...