Advances in Engineering Research

The laccase of 4222 produced was investigated to the degradation ability of lignin and cellulose in the corn stalk powder solid Medium. The results showed that laccase peak was later than the liquid culture, arrived 1842.9 U/L on 15d. The training period of 30d, weight loss of powder dry straw was 82.48%,...

The shear-wave velocity of rock and soil masses is the quantitative basis for understanding the dynamic parameters of site soil and evaluating its dynamic performance. The field test and laboratory test are two major methods and it is necessary to study the difference of the test results obtained by...

In this thesis, data security in cloud computing is regarded as the research object. First of all, the definitions, model, structure, application, research organization and related knowledge of cloud computing is introduced. Then, the data security assurance methods which used in this thesis including...

With pineapple leaf fiber as the raw material, refined dry jute is obtained through refined processing, which is blended with cotton to trail-produce 30S pineapple leaf fiber/cotton (30/70) blended yarn. Through the combination of industry, university and research and by cooperating with the textile...

Microgrid (MG) power system plays an important role to fulfill reliable and secure energy supply to critical loads of communities as well as for communities in remote area. Distributed Generation (DG) sources integrated in a MG provides numerous benefits, at the same time leads to power quality issues...

Combined toe-and-side grouting technology was employed to increase the bearing capacity of cast-in-situ bored piles. A field test was conducted to investigate the combined toe-and-side grouting technology for over-length friction piles. L-shaped injection pipe was used for pile-toe grouting and circular...

Asphalt pavement is the main pavement pattern in China. There have been a serious of achievements over the past decades in mechanics theory and damage mechanism of asphalt pavement. Based on the above two aspects in asphalt pavement design, this paper provides a detailed overview of the application of...

With the development of industrialization, application of pipe is becoming more and more. The traditional pipe cutting method cannot meet the market demand. CNC cutting can make up for the deficiency of traditional manual cutting, a kind of cutting robot control system based on Trio motion controller...

In the exploitation of the mineral resources, deep subsurface structure research can explain the formation mechanism of resources and guide proper resource assessment. Receiver-function is an effective method to solve problems related to deep structure. Based on the uncertainty of this method, which...

In the present paper a band pass microwave filter based on spoof surface plasmon polaritions (spoof SPPs) mechanism and with suspended diamond slot structure is designed and simulated. The filter is composed of three sections, where in the third section, a corrugated metallic strip with parallel and...

Fatigue damage is the main damage cause of crane. The prediction method of fatigue life determines the design and service life of the crane. Therefore, it is extremely important to study the fatigue life prediction method of crane. In this paper, the existing fatigue life prediction methods are summarized...

The angular cross section profiles are increasingly used in tall pole structures such as telecommunication towers, transmission towers and wind energy turbine supporting towers. So, this work is based on the aerodynamic study of this type of profiles for three types of considered arrangement of profiles....

The optimal capacity combination model of an isolated microgrid is established, which considers the pollution emissions, the punishment of renewable energy waste, the effect of charge and discharge process of lead-acid battery to its lifetime and reliability, the total cost and punishment of renewable...

The selection of cement slurry with different consistency and different concentrations of Sodium silicate, design and test research on the mixture ratio of cement-Sodium silicate grouting material, 4 W/C and 4 0Bé co design 16 groups of proportion, through the collation and analysis of experimental data,...

The sluice is located in the place where the basic seismic intensity is degree 8. According to anti-earthquake safety calculation of lock chamber based on finite element method, the result shows that the displacement of the lock chamber is within safe levels and that the strength of sluice satisfies...

Preparation of sultamicillin tosilate -cyclodextrin inclusion to study the stablility. Method: the contents of the inclusion compound of the mixture were determined by the method of saturated aqueous solution. The content of the mixture was determined by UV spectrophotometry and the content of the mixture...

Phase change materials and traditional building materials can be combined into new building materials which have regenerative and thermostat function, it has a large energy density and heat absorbing approximately constant temperature and it can effectively maintain comfortable indoor environment and...

The glass lettuce was made as material, the effect of different concentrations (0, 50, 100, 150, 200 μmol·L-1) of exogenous melatonin on growth, antioxidant enzyme activity and osmotica of lettuce seedlings under salt stress was studied. The results showed that the root length, stem diameter, and dry...

Flight in icing conditions brings significant safety risks due to aircraft aerodynamic performance reduction, stability and controllability deterioration, failures, mechanical damages. For reliable operation in icing conditions active anti-icing/de-icing systems are needed, which entail at the present...

The article presents the dataset on the influence of paratypic factors on the productivity of Holstein cows. The best indicators of productivity were revealed in the cows with a live weight of 400-449 kg at the first successful conception. The milk yield amounted to 8863.2 with a fat mass fraction of...

Compact plate-fin heat exchangers are extensively used in automotive, marine and aviation industries. The thermal stress in structure of heat exchange surfaces is sufficient and leads to reduction of the resource of such devices if they are used for cooling hot air (300…600 ºС). The utilization of the...

4G-LTE system is a long-term evolution technology proposed by 3GPP. It belongs to quasi-4G technology. It has the features of high rate, wide coverage and low latency. The physical layer is the bottom of the system and the key of technological innovation of mobile communication system. In this paper,...

Strain localization in sand is modelled as the event of two-phase coexistence. Shear bands pertain to the high-strain phase of materials. And other regions outside bands pertain to the low-strain phase. Inside each phase the equilibrium equations must be satisfied. Across interfaces between the two phases,...

In this paper, a synthesis method is proposed based on vector transformation for linear nearest neighbor quantum circuits. Its aim is to construct a linear nearest neighbor quantum circuit, and to reduce the quantum cost of the linear reversible circuit. The vector representation of the sequence of the...

This thesis analyzes the embarrassing situation of uneven development of China's sports TV media in the omni media era, and puts forward the idea that the complementary with new media should be strengthen and local TV media should further cooperate, sports authorities should take effort to improve the...

Modal parameter identification plays an important role in the dynamic performance evaluation and design of seismic structures. In this paper, we tested the large span space steel structure laboratory in a university, and then got modal parameters such as frequency and vibration mode based on the assumption...

With the growth in demand for information processing, considering that cloud computing technology and virtual digital libraries have common goal. In this paper, take the cloud computing as the basis of virtual digital libraries, firstly, research the digital library virtualization under the circumstance...

Based on the analysis of dead zone compensation principle in H-bridge inverter series structure, an improved average voltage feedforward compensation method of H-bridge inverter series structure is studied. Because the traditional average voltage feedforward compensation method has the phenomenon of...

Aiming at the problem of short-term load forecasting in power system, this paper propose a load prediction method based on multiple proportions smoothing method. We perform multiple linear regression analysis and partial correlation analysis on the load with respect to the weather, and found the meteorological...

Kampung Kota (KK) is a form of urban area settlement in Indonesia. KK is a characteristic of big cities that still carry the environment and behavior of rural life, dense buildings, densely populated. Also, urban villages are characterized by low per capita income, developing without regular patterns....

The purpose of this study was to design and analyze the loading of the modified rim strength (cast wheel type) on the motorcycle. The method used is to use SolidWorks software, loading simulation analysis performed with 3 variations of the rim model and three (3) variations in the number of spoke (8,...

The purpose of this study is to map the problems with the implementation of an internal control system in the local government. A qualitative approach through a method of content analysis is used in this research. The analysis used is the Leximancer instrument. The data used derived from audit reports...

Biogas is an alternative energy that can be obtained from the anaerobic degradation process of organic matter. The high carbon dioxide (CO2) content in biogas needs to be reduced, even if it can be removed so that the quality and heat value of biogas increases. The water scrubbing method is a method...

ZnO/ECB photocatalyst (Eichhornia crassipes Biochar) has been synthesized to be applied as a photocatalyst in the degradation of Reactive Black-5 dye. ZnO/ECB photocatalyst was synthesized by the coprecipitation method with the ratio Zn(NO3)2.6H2O:ECB (M:w) 0.25:1 (0.25MZnO/ECB); 0.45:1 (0.45MZnO/ECB);...

This research focuses on addressing the challenges faced by robots when going through uneven terrain by maintaining stability in an inclined position. The main objective is to design a PID control algorithm that allows the robot to adjust its motion based on real-time sensory feedback from the IMU sensor....

Port Klang Malaysia is a key maritime gateway and essential logistical hub for the country. Its central role in Malaysia’s economy necessitates ensuring safe marine navigation within its bounds. This research uses the AIS dataset to analyze marine traffic density and patterns in Port Klang. Data from...

With the advancement of the digitalization of social security archives, these archives face issues related to information resource security. Blockchain technology offers a new approach to addressing the trustworthiness of digital archives. Firstly, the working mechanism of blockchain is analyzed. Secondly,...

Safety in train operations is a very important aspect of the operation of railways. Along with the increasing demand for goods and services, train trips are increasing. This condition causes increased activity at the station, which has a function: to get up and down passengers or load and unload goods....

Fish as a commodity that easily and quickly decomposes requires fast, clean, careful, and cold handling. Thus the quality of the fish can be maintained from the time the fish is removed from the sea until the fish is marketed to consumers. Handling fish to maintain its quality to keep it fresh and hygienic...

To enhance the application of arch-shaped beams in public buildings, this article utilizes ABAQUS and engineering design software to analyze the impact of different structural measures on the stress performance of a high-rise building’s large-span cast-in-place reinforced concrete arch conversion beam. ...

As the urbanization process in China accelerates, the issue of carbon emissions in the construction industry becomes increasingly prominent. Beijing, as the capital of China, the green and sustainable development of its construction industry can provide a reference for other cities. To explore the potential...

Makassar Port plays a crucial role in the Ministry of Transport’s hub-and-spoke strategy, significantly impacting the reduction of economic disparities between the eastern and western regions of Indonesia. As a vital port, the safety of the port and the marine environment must be safeguarded at all costs....

As smart grid technology and distributed photovoltaic power generation continue to advance rapidly, their integrated and coordinated use is emerging as a key focus for optimizing future power systems. However, how to optimize energy storage technology on the basis of ensuring load balance is still a...

Engineering practice shows that most of the damage and failure of rockfill dams are directly or indirectly related to seepage. The steady seepage analysis method is used to evaluate the seepage control effects of the Longbeiwan CFRD. The variational inequality formulation of Signorini’s type is used...

Low Density Parity Check(LDPC) code itself has a good performance and the application of LDPC in the communication field is extensive. LDPC codes have the characteristics of low bit error rate, easy adjustment, low decoding complexity and excellent decoding performance. LDPC is considered to be the "best...

To evaluate the development effects systematically, the coalbed methane (CBM) production performance of 58 horizontal wells in the Fanzhuang block of the Qinshui Basin was tracked and correlations between the gas rate per 100 m and the influencing factors were discussed by single and multiple factor...

This paper selects 30 college students as subjects, concludes of characteristics agricultural product web page layout and goods list line density, selects 3 domestic agricultural e-commerce website interfaces which is structured from top to bottom, left corner of the right type, and 3 domestic agricultural...

In the present research, phytoremediation mechanism of sediment contaminated with pentachlorophenol (PCP) was investigated. Seven species of common aquatic macrophytes were used for remediating PCP contaminated sediment and those plants could significantly accelerate the degradation of PCP in sediments....

Electric flux method was adopted in this paper to carry out experimental study on influences of fly ash and basalt fiber contents on chloride penetration resistance performance of high-performance concrete. First, influences of fly ash content were investigated by virtue of uni doped fly ash. Then, basalt...

This paper describes an investigation of properties of 3 ACCMs, including cathodic disbonding, hot water dipping in, shear strength and bonding characteristic. According to standards of oil and gas pipeline, some experiments are carried to determine these characteristics. From these experimental results,...

For a water-cooled engine, radiator performance has a direct impact on automobile engine heat dissipation effect, influence the automobile's power performance, economy and reliability. Based on the 6DL engine high temperature problems are investigated, analyzed the reasons of high temperature of the...

Words, as the basis of language, have relative stability.But it is also gradually developing. The language variation and change has been an important subfield in sociolinguistics, and has made remarkable achievements.But there is seldom research conducted from the aspect of the natural language processing.This...

In an attempt to isolate high-quality, total RNA from flower buds of sunflowers (Helianthus annuus). We have already improved the SDS method. After adding liquid nitrogen, we have to grind the material down. After that we add protein -DNA precipitation, wash it with the addition of different kinds of...

The numerical simulation of steel lined reinforced concrete penstock model of a hydropower station is carried out by continuous-discontinuous numerical method (extended finite element method). This paper focuses on the numerical calculation method of the crack process and the crack width of the concrete...

A study on distribution characters of initial stress in the condition of gravity effect in the slopes within alp of which the slope angles poses 30° 45° 60° respectively were conducted by numerical analysis. After comparison, it is found that when closing to the region of slope surface, the difference...

Influenced by special topography and three-dimensional climate, the distribution of water resources in Yunnan Province is obviously different form other regions. According to the official reports of water resources, related evaluations and planning in Yunnan Province in 2012, the interaction cutting...

Objective: to compare the contents of heavy metals in Alpinia oxyphylla Miq. at different growth stages. Methods: The content of Cu was determined by atomic absorption spectroscopy. The contents of other four elements, i.e. As, Hg, Pb and Cd, were determined by atomic fluorescence spectroscopy. Result:...

There is the vague boundary between fault omen and fault phenomenon of aviation equipment, one Fuzzy C-means (FCM) cluster method is given to divide the fault classification, which provide some help to determine the next fault mode.

This research has objectives as this following: 1) to study the properties and quantities of the leave-buds and the leaves of sugar cane 2) to develop the transformation process of the leave-buds and the leaves of sugar cane as the materials replacing of wood 3) to test the replacing material standard...

An online detection system is designed for gathering machinesto solve theproblems ariseincollating. The system consists of industrial digital cameras and industrial control computer to form a distributed control system that uses Ethernet to communicate information between host computer and slave computer.Using...

Hydrogen fuel is a kind of clean energy that can be generated by photo catalyzing water splitting. It is interesting to investigate the case contrasting to Gibbs free energy determination formula (GFEDF). Through calculation and theoretical analysis, results are: (1) there is not electric energy and...

A pre-stressed concrete bridge is a construction structure that connects a place to another place that is made by giving a voltage opposite the voltage caused by an external load. The process of giving tension can be carried out before the concrete is printed (pre-pull) or after the concrete is printed...

The article presents the development project of a device, namely a generator of innovative principle of generating electrical energy, in other words, the development project of an innovative source of electricity.

To evaluate the health status of the power distribution network is of vital importance to condition-based maintenance of the power distribution network. By studying the power distribution network health condition using the theory of health index (HI), this paper proposes a method to evaluate the power...

The Sea around Belitung Island is an oceanic pathway for the South China Sea and the Java Sea which has some characteristics. This paper addresses to determine sea level variation around Belitung Island using satellite altimetry observation. Several parameters applied to determine sea level anomaly....

Hybrid renewable energy began to play an essential role after the fossil energy is gradually reduced. In Thailand, the government is very interested in renewable energy, and there are many potential areas in countries where renewable energy sources such as wind energy and solar energy are available....

As the traffic accident becomes a serious problem, we need some more efficient methods to identify the car. Luckily, we can use artificial intelligence to recognize the motors by using side-view images. It will help a lot to solve the traffic accident. We used the wavelet entropy to extract the feature...

Quality assessment in existing road pavement is used to decide the right action for road preservation. In Indonesia, the quality is measured by functional parameter in riding quality using International Roughness Index (IRI) and visually using Pavement condition Index (PCI) to evaluate pavement condition....

In this paper, the age factor of chloride diffusion coefficient of concrete is considered, as well as the randomness of the chloride diffusion coefficient, concrete cover depth, surface concentration, threshold concentration and age factor. Based on the First Order Reliability Method, a time-dependent...

Taking Xin’an coal mine as an example, through empirical formula, regional analogy, theory analysis and analog simulation experiment, predicted the high of water flowing fractured zone under the condition of fully mechanized top coal caving, used monitoring system to measure the height of water flowing...

Hot and humid environments are ubiquitous in some special workplaces, such as deep mines, aviations, and military territories. High–temperature radiation is a serious threat to the health of high temperature operation personnel. Exposed to high temperatures for a long time will inevitably lead to dehydrations,...

Penelitian bertujuan untuk mempelajari pengaruh lama inkubasi pada fermentasi onggok menggunakan Mutan Trichoderma AA1. Empat level lama fermentasi yang meliputi 0 (kontrol), 1, 2, dan 3 minggu diperlakukan untuk fermentasi onggok. Percobaan dirancang dengan One-way classification of Completely Randomized...

With the comparision of smelting process technology and submerged arc furnaces for silico-calcium alloy at home and abroad, it is seen that the development of large capacity arc furnace technology for silico-calcium alloy is necessary and urgent in China.

A kind of high precision electronic scale with STM32F103 as the control core is designed. Mainly by the resistance strain gauge, operational amplifiers, ADC and other functional modules. Strain gages of the bridge circuit will be based on the pressure of different output voltage, through the amplifier...

Preparation of pearly green black pigment (micron glass/nano-Fe3O4) can be carried out by a green process: eroding the micron dimension glass first, then second co-precipitating ferrous and ferric ions on the eroded substrate, which should minimize long and short-term impacts on the environment. The...

In this paper, the author studies an inverse two-phase Stefan problem obtained from a one-dimensional model of ice melting. This problem can be reduced to solve two hot-conduction equations. One is posed, so we can use the difference approximation method to solve it. The other is ill-posed. We first...

This paper taking into account the universal use of Android phones, designs and implements judgments and notices the old man falling cell phone App. By calling the phones accelerometer, gyroscope collection campaigns after processing according to human body dynamics model to determine the specific state...

Particle impact drilling is a kind of rock breaking method, that high speed metal particles and fluid were given priority to be used to jointly break rock, and mechanical drill bits were supplemented. It is an effective means to solve the hard and abrasion-resistant drilling problems in deep and ultra-deep...

Faced with the development of information technology and the arrival of the era of big data, dynamic memory management is one of the most important operations in many C/C++ applications. Traditional paging memory management apply page table which aims at process. When the address of the process is large,...

Gudang Atag is one of Indonesia’s vernacular buildings, which is a characteristic of the Na-Oogst tobacco plantation as raw material for cigars. This tobacco barn can produce tobacco leaves with quality that conforms to the standard using the process of air curing. Air curing is the process of drying...

Intravenous fluid infusion is an effective treatment for patients, but it requires monitoring by nurses or family members. We design a monitoring system based on AT89C51 to solve monitoring problems and avoid medical accidents. We use infrared sensors to monitor the infusion drip rate, buzzers and light-emitting...

The implementation of UAVs in Indonesia on road infrastructure projects still widely used at the planning stage of new road routes and the supervision stage to determine the progress of the work. Meanwhile, at the post-work monitoring stage, the UAV is only used to identify and inventory the pavement...

The development of urban green open spaces within the framework of environmentally friendly sustainable architecture is one of the human efforts to create a better life without hindering opportunities for future generations. The Cikapundung Terrace is one of the urban green open spaces occupying the...

The increasing demand for marine ecotourism along Java’s southern coast necessitates vessel designs that prioritize passenger comfort and safety under moderate to high wave conditions. This study evaluates the motion response and comfort performance of a 17 m catamaran using a simulation-based approach....

Autism is a developmental disorder that hinders the life of an autistic child with poor communication and a lack of social skills to carry out their day-to-day work. Detecting autism is very important at an early stage to help the child overcome their learning disabilities. Generally, Autism is diagnosed...

To study the axial compression performance of composite constrained concrete columns with steel tube and prestressed steel hoops, seven groups (three specimens each group) were subjected to axial compression tests of constrained concrete columns. The axial compression mechanism of steel tube and prestressed...

The potential applications of essential oils are limited by their natures as they are oxidized easily by light, heat, and other environmental factors. Essential oil impediments and their short shelf life promote the development and application of essential oil nanoencapsulation. Nanoencapsulation techniques...

Robot is a complex system consisting of multiple joints and connecting rods with complex coupling relationship between multiple inputs and multiple outputs, making it very difficult to establish the dynamic model of the robot. In order to realize the real-time control of the robot and improve the control...

The gear wheel reducer of self-propelled weapons is the final reduction gear drive in the drive system. Under the same ratio of transmission, using reduction gear can reduce the load of transmission, drive shaft, main reducer, differential mechanism and half shaft, the size becomes smaller and the drive...

The high pressure torsion (HPT) process was used to process the FeNiCoMoV high-entropy alloy. The open-circuit potential test, the potentiostatic polarization curve test and the electrochemical impedance spectroscopy were used to study the effect of corrosion behavior of FeNiCoMoV High Entropy Alloy...

Affected by the environment and equipment, it is not possible to use the camera or sensor to complete the expression of environmental information, if multiple images are used, a large amount of image information will be generated, which is not conducive to data processing, and image fusion technology...

Abstract. Objective: To observe and analyze the curative effect of endometrial polyps’ resection under the hysteroscopy. Methods: From March in 2012 to May in 2014, we select 64 examples of the intrauterine membrane polyp patients in our hospital, and who are randomly divided into two groups, 32 patients...

The paper introduces the development status of wide-area protection (WAP) and the wide- area current differential protection (WACDP) algorithm. Digital signal processor (DSP) TMS320F28335 is used as the controller, the system model is built with MATLAB/Simulink, combined with semi physical simulation...

In this paper, we mainly apply the Wiman-Valiron theory to prove a theorem on growth of a linear differential equation. From this we obtain a uniqueness theorem concerning that a non-constant entire function and its derivative sharing a small entire function.

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The environment after disasters is abominable and complicated. By increasing the wide adaptability of rescue machine to make it operate more quickly and flexibly and increase the efficiency of rescue operation. Based on investigating and analysis of the features of specific environment and functions...

From the analysis and arragment of historical data of wind turbine pitch motor temperature wind speed and other related parameters of hebei chigu wind farm in 2015 ,the paper obtains historical data using 10 minutes as acquisition unit under various operating conditions of wind turbine pitch system from...

Vibration test on hull structures with large size needs numerous amounts of sensors, which means too much work. However, notable error would come from reducing the number of sensors. An approach is proposed to reconstruct the complete structural vibration, which chooses the locations and the number of...

To improve performance for integrated exploration algorithms of multi-robot systems, a two-stage coordinated strategy is proposed in this paper. In the first stage, all robots explore unknown environments by a kind of forth and back trajectories which are shaped by social entropy and a voting mechanism....

Paper presents the results of studying the features of recording acoustic emission waves recorded by fiber-optic sensors. Fiber-optic sensors are used as an elastic medium that receives acoustic emission waves. For this purpose, the optical fibers are embedded in the polymer composite material during...