Advances in Engineering Research

Improving air quality is important to improve the quality of the environment. Taking Shanghai city as an example, this paper analyzes the main factors affecting the air quality by using the grey correlation theory. The results show that, in accordance with the influence factors for air quality from big...

Ambiguity function describes the measurement accuracy, resolution capability and ambiguity degree of signal delay and Doppler frequency shift, which can be used to analyze the resolution of adjacent targets and anti-interference performance of the system. In this paper, the binary digital modulation...

With sulfur dioxide and other environmental pollution is becoming more and more serious. It is of great significance to explore an efficient, fast and clean way to remove these environmental pollutants. In this paper, the microwave plasma technology is applied in the desulfurization process. The effect...

Clustering is an effective method which can increase the performance of large-scale ad hoc UAV networks. However, the ad hoc UAV networks have the feature of high mobility and quick network topology change, using conventional clustering algorithm will lead to the decrease of link connection lifetime...

Prionace glauca can cruise long distance with high efficiency. The study on hydrodynamic characteristics of prionace glauca streamline body three-dimensional(3D) model will provide important reference value for the optimization design of autonomous underwater vehicle (AUV) and other marine equipment....

Let be a set of primes.Isaacs established the - theory of characters,which generalizes the theory of Brauer module characters. Based on Isaacs’s work, the concept of principal indecomposable B '-characters of G is introduced, where ' denotes the complement set of .It is shown that some characteristics...

A FeCoNiAlTiCrSi high entropy alloy coating was cladding on the surface of Q235 steel by laser using FeCoNiAlTiCrSi as basic alloy powder in which B, C, and Y2O3 were added as a in situ synthesized elements. The results show that the 2mm thickness coating with no crack and pores was prepared under the...

This paper proposes a comprehensive method, named realization degree mid-term evaluation,to assess indicators during “Twelfth Five-year” mid-term. Meanwhile it establishes mid-term evaluation for the “Twelfth Five-year” planning of Shanxi indicator system constituted by three hierarchies,such as target,...

The biological pollution of air conditioning system is one of the most important problems in indoor pollution. Then measurement device of fungal spore release strength in the parallel airflow was developed, and the release intensity of two kind of fungal spores was tested in typical wind speed and environmental...

To examine the effects of nitrogen and reclaimed municipal wastewater(RMW) irrigation on fruit quality of greenhouse tomato and soil nitrogen utilization, field experiments were carried out. Root-layer mineral nitrogen, total nitrogen, tomato yield, nitrogen in fruit, partial factor productivity from...

Talibeng Village in Sidemen District, Karangasem Regency, Bali Province, is a potential destination for natural, cultural, and spiritual tourism. The village consists of several banjars such as Celetiga, Delodyeh Kangin, Delodyeh Kawan, Talibeng, Sari, Dukuh, Wangsihan, and Wanasari, which are at an...

The magnetic properties of NdCo2Ge2 have been investigated. An abnormal magnetic transition occurs at room temperature. The magnetic field aligned XRD pattern implies that this phenomenon originates from the anisotrophic change by the (110) and (011) planar rotations driving by the applying magnetic...

In order to explore the contra-rotating axial flow pump design method and analysis its hydrodynamic performance, the inlet and outlet velocity triangle of front rotor and rear rotor was analysed, then, a high specific speed contra-rotating axial flow pump was designed using three dimensional method based...

The conventional ultra capacitor charger uses computer to monitor the ultra capacitor's state of charge(SOC) and adopts different strategy to charge the ultra capacitor. It makes the system expensive and the control method is also inconvenient. For the above problems, a non-microcomputer ultra capacitor...

A novel uncoupled translational parallel mechanism (UTPM) with three degrees of freedom (3-DOFs) is presented, which is composed of a moving platform connected to a fixed base by three identical kinematic chains. Firstly, kinematic output property of the moving platform is analyzed. Then, both the forward...

A Identifying peptides for their fragmentation spectra by database search sequencing method is crucial to interpret LC-MS/MS data, widely used algorithms had not been fully exploited the intensity patterns in fragment spectra, SQID incorporated intensity information and identified peptides significantly...

With large-scaled but poor engineering properties of loess in western China, especially the badly collapsibility, to deal with the collapsibility is necessary for high quality of highway construction. This paper aims at the site conditions of collapsible loess foundation in Tong-Huang express way of...

we use the governing equation and continuity equation to build a two-dimensional model of water temperature on micro element theory. Because the partial differential equation is difficult to obtain its analytical solution, we use finite difference method to work out numerical solution of the model.

For obtain enamel-like hydroxyapatite, we are trying to induce the growth of crystal with modified chitosan which can simulate the organic template like extracellular matrix--Amelogenin to induce the deposition of miner ions. Phosphorous acid modification was applying into natural polycation polysaccharide...

Over the past several decades, the forward osmosis (FO) has attracted growing attention in many water and wastewater treatment processing. The main obstacles for forward osmosis developing are membrane fouling, concentration polarization (CP) and reverse solute diffusion. In this study, we reviewed these...

The article put forward concrete construction programs for power grid enterprises encountered in the financial management by analyzing the feasibility of fusing integration cloud computing and power grid enterprises financial management. The scheme is about requirements analysis and a series of specific...

To fulfill the requirement of the torque transmission for the medium and small displacement vehicles, design a magneto-rheological fluid dual clutch (MRDC). MRDC adopts magneto-rheological effect of magneto-rheological fluid (MRF) to transmit torque. Only by changing the current in the coil, the separation...

The shear strength of coarse-grained soil is usually measured through a large-scale direct shear test. However, the dynamic change of the shear surface during the test has an effect on the calculation of the shear strength of coarse-grained soil. This paper put forward the formula for the dynamic shear...

The work studies and identifies testing cultures of microorganisms colonizing the surface of construction structures (walls and floors) exploited in natural conditions of largest agricultural cattle breeding, hog breeding and poultry (chicken and turkey) breeding sites in Belgorod region

In the article the developed mathematical models of heat exchange in the multilayer structures of spherical shape are presented. The mathematical description of the polymerization temperature process of composite materials is made at three production stages. Heat exchange is considered when the perfect...

It is well known that the engineering properties of materials and structural components can be considerably influenced by residual stress. In this paper, a new judging method of residual stress based on improved Hilbert-Huang transform (HHT) is proposed. Two types of high strength aluminum alloy plate...

PT. XYZ is trading company and subsidiary of the big one trading company in Japan. PT. XYZ is engaged in construction cold storage and export import. The problem of this journal is to find out the relationship between on time clearance and on time delivery. To analyst the data, the author used simple...

A seaweed cultivator has an average of 400–5,000 ropes, where 1 ha of water area can be installed around 800 ropes. It delivers to the increasing the number of plastic bottle waste. The plastic bottles are used as floats in seaweed cultivation. Plastic bottle waste is an environmental problem for the...

In order to implement the most stringent water resources management system, strengthen the management and protection of groundwater, it is necessary to carry out the safety investigation, monitoring and evaluation of groundwater emergency standby water sources. Taking a city as an example, a pumping...

Heart attacks, or cardiac arrests, are a major global health concern, accounting for nearly 31% of deaths worldwide due to cardiovascular diseases (CVDs). These conditions result from chronic processes influenced by modifiable and non-modifiable risk factors. Many cases are preventable through lifestyle...

The main protection configuration scheme of internal short circuit for large generators is a prerequisite founda-tion for large generators to run with safety and reliability. Firstly, we sum up the type and the quantity of in-ternal short circuit for stator windings for SFD250-20/7500 motor-generator....

SCR denitration reductant's preparation system is the supporting system in heat-engine plant producing reducing agent. Its safety, reliability and stability are crucial. Based on the aspects of technology and economy, this paper makes a detailed comparison and selection of three kinds of denitration...

Jietai Temple landslide is located in the north wing slope of Ma'an mountain, Mentougou distric to Beijing, and is China's key cultural relics protection units and famous Buddhist temples. According to Jietai Temple landslide formation conditions, predisposing factors, deformation and failure characteristics,...

This paper proposed an indicator system to the saving and intensive of infrastructure. The evaluation indicator system was built from three dimensions - transportation facilities evaluation indicator, water supply and drainage facilities evaluation indicator, safety and disaster prevention facilities...

This paper proposes an image thresholding segmentation method, which combines tissue membrane systems and velocity-position model. A tissue membrane system is used as its computing framework and an improved velocity-position model is integrated as evolution rules of objects in cells. Due to parallel...

This paper presents a design for information gathering networks and nodes for discrete manufacturing information monitoring. Firstly, the wireless network characteristics and categories are analyzed. The paper then proposes a combined wireless network with high speed WIFI and low speed ZigBee network...

The compression process in an axial compressor with water injection is a complex two-phase flow involving many changes of water existing forms. Boundary conditions close to the real ones of water droplets on compressor blade are extremely important for numerical simulation. Water droplet impinging and...

Nowadays, China is in a critical period of developing economy, enhancing people’s living standard, completing systems, developing science and education, strengthening the comprehensive national strength and participating in international cooperation and competition actively, so that the socialist industrialization...

The of sansha highway on saline soil area in Tarim basin, soak the formed asphalt mixture in a salt solution for 60 hours, Immersing Marshall test and freeze-thaw split test respectively, system analysis of test data, It is concluded that the asphalt pavement in the saline soil is the long-term erosion...

Since energy and environmental problems have become severe and urgent which cannot be ignored in the development of modern society, and based on the current situation of energy distribution, this paper gives a review of thermo-electric power generation technology to recover energy. First, a brief introduction...

Coin detection and classification system is important in banks. When coin images are captured by low end line-scan camera with poor illumination, their quality will be relatively low. A lightweight algorithm is proposed for this kind of images. Firstly, a modified Canny operator is designed to filter...

Big data, as the frontier technology of data analysis, can quickly obtain valuable information from various types of data. This article is based on unified, standard data collection platform. It collects multi-word configuration, alarm and performance data. Combined with a dumb associated resource data,...

At the beginning of 2020, the world was hit by a disaster of the Covid-19 pandemic. It has changed human life including business activities, MSMEs are no exception. Many business owners are closing their businesses due to the situation. MSME owners, therefore, need to acknowledge what can be done to...

The online community group-buying of fresh products is becoming welcomed by the public. Providing customer fresh products with satisfied quality is concerned by community group-buying distributor, as residents have diverse requirements for delivery times and freshness, often overlooked in existing research....

Gold tailings (GT) are fine particles expelled after extraction of target metals and minerals from gold ore. The particle sizes mainly concentrate between 0.045mm and 0.15mm, and with richer metallic components and fewer sulfides. GT are largely underused in building materials. Considering engineering...

In view of the small machinery manufacturing enterprise's characteristic and the actual demand in CAE by study of CAE secondary development language APDL, the effective integration of CAD and CAE, and the expert system is introduced to the results of CAE analysis processing. The CAE public service platform...

Nitrification inhibitors (NI) are widely used in fertilization to modify nitrogen (N) transformation in soil for matching crop N requirement and reducing N loss to environments. However, the effects of major NI products in China on inorganic N transformation in purple soil are poorly quantified. Therefore,...

According to the requirements of micro guided munition on detection, a design method on optical system indexes of the strap-down uncooled infrared detector is put forward. Based on the structure, mathematical modeling of the optical system is completed, and a series of basic parameters are calculated...

In this study we analyze the dynamic short-run and long-run relationship between the Stock returns and Exchange rate; the study identifies the impact of exogenous shocks and we have employed various econometric techniques to like multivariate granger causality test, Cointegration analysis and Vector...

Interactions of polycyclic aromatic hydrocarbons (PAHs) with graphene quantum dot (GQD) and graphene oxide quantum dot (GOQD) were probed by local density approximation of density functional theory with empirical dispersion correction. Simulation reveals that van der Waals force is the main mechanism...

The reason why magic is mysterious is because the masters have sufficient application and grasp of various kinds of scientific principles. Here, take "tie the knot" magic for example, carry out several experiments of a single hoop knotting with a chain, analyze the process of operation, movement and...

The lift-off effect of the sensor has an influence on MBN signal during the process of Barkhausen noise detection.Therefore the way to eliminate the lift-off effect has become the emphasis of the study on the accuracy of the result of Barkhausen noise detection. The study improves the design of the sensor...

In order to obtain the olive wine that has pure taste, rich in nutrient. This paper uses the olive juice, olive pomace, and the mixture as fermentation materials. As a result, three different olive wines are obtained. The components in wine are analyzed by GC-MS. The results show that the olive wine...

Based on the measurement principle of digital energy meter, the measurement error of the digital energy meter of intelligent substation is mainly caused by the defect of the adopted algorithm, the incompleteness of the received data message and the effective number of the floating point. This paper expounds...

et G be a finite group with an abelian Sylow 2-subgroup. Let N be a nilpotent normal subgroup of index in G at most 5. Then the normalizer property holds for G. The result generalizes a well-known result due to Li, Sehgal and Parmenter.

In order to achieve jumping movement gait of a quadruped bionic robot, herein, a kind of quadruped bionic robot with a single leg is designed for the purpose. The body, thigh, shin, ankle and the structure of the energy storage unit are determined by analyzing the bone structure and the muscle distribution...

Software defined network and mutable network are two main networking forms in these years. Traditional networking cannot meet the requirements of the renewal in information technology applications. We discuss mutable network and software defined network in this survey. We contrast two networking in motivations,...

Aiming at the problem of aerial hydrazine fuel guarantee safety assessment, an assessment model based on Vague-SPA and fuzzy close degree was proposed in accordance to the fuzzy matter-element. Firstly, based on the definition and actual situation, an assessment index system and fuzzy matter-element...

In order to short reduction period, decrease energy consumption and lower labour-intensive in the production of Mg reduction, a kind of vertical and fast reduction Mg furnace was developed to come into continuous operation and automobile control, the novel furnace is heated by the inner-multiple-electrode,...

Based on the uniaxial tensile mesoscopic spring model of concrete, a uniaxial compression microscopic spring model is introduced. Considering the effect of material composition and horizontal deformation of concrete, a stochastic constitutive damage model of concrete is built. The effect of stiffness...

In this article, seismic and shock absorption experiments of ultra-high voltage (UHV) porcelain arrester is carried out to investigate a seismic withstand ability for UHV porcelain equipment. To ensure the seismic safety of UHV equipment, tensile and compressive cyclic loading tests of metal dampers...

With the increase of high-rise buildings, high-rise building fire accidents also tend to be normalization. High-rise building fire, particularly ultra-high-rise building fire, has become an unsolvable problem in life and workplace. The design of new embedded scalable fire rescue equipment will effectively...

By changing the mass fraction of Ni in the (Ti+B4C) reaction system, TiC-TiB2 composite ceramics with different Ni mass fraction were prepared by SHS centrifugal casting. TiC-TiB2 composite ceramics are composed of a lot of TiB2 platelets, irregular TiC grains and a few of intermittent net Ni alloy by...

The effect of refrigerator position in the same layer on the quality of fresh-cut pepper was evaluated. The temperatures of the front and rear in the same layer were different. The front temperature was about 0.5 oC higher than the rear temperature. The soluble solid content of the front pepper was higher...

Yellow River reservoir water, which is slightly polluted and owns a high content of suspended particles, is studied as raw water in this paper. Online particle counting instrument is used to detect and track the particle content of raw water. Potassium permanganate pre-oxidation process combined with...

We can get the relation of the solar altitude and latitude, the angel of equator and latitude and the solar hour angle according to the knowledge of astronomy. Then establish a mathematical model for the length of the shadow of straight bar, in accordance with the relation of height, the length of shadow...

Using the case of Hanyang, this paper provides new evidence of land transformation in China. Together with massive non-urban to urban land transformations, there is an increasing proportion of land being converted from urban to non-urban uses. The results of exploratory spatial data analysis demonstrate...

Under the condition of using the least time, we hope to minimize the cost. As is known to all, the shorter distance is, the less money we spend. Thus, the problem of cost is transformed into the problem of distance. We choose four addresses as supply points and view the amount of medicine which they...

The aligned polylactic acid (PLA) porous fibers have a feature of high specific surface area, special structure and excellent biological properties, which are appropriate as the material of tissue engineering. Simultaneously, the aligned PLA porous fibers are beneficial to the orientation of tissue cells,...

The paper reviews research data of reactive power compensation for Metro electric power substations. According to comparative analysis of Metro, it is necessary to compensate reactive power in order to reduce its the negative consequences, which are also presented. Reactive power compensation ensures...

Silicon carbide (SiC) is a kind of material with high specific stiffness, thermal conductivity and low thermal deformation coefficient, which is currently in active demand in aeronautic and astronautic industries. However, the beneficial properties of high hardness and high strength cause problems in...

The use of silver nanoparticles (AgNPs) in a wide range of consumer products has the furthered need to assess its impact on organisms. To date, there have been very few studies examining the effects of AgNPs on plants. This study investigated the impact of AgNPs to seed germination rate, seedling growth,...

Eulerian-Eulerian two-phase flow model was used to calculat the rheological properties of foam fracturing fluid. In the model, the foam fluid is treated as pseudoplastic fluid. And the calculation results of the model show that the non-Newtonian behavior of foam fracturing fluid is determined by the...

The purpose of the present study was to investigate the immune-enhancing activity of Kombucha. In immunosuppression experiment, the immune-enhancing effect of Kombucha in immunosuppressive mice was performed.It was showed that Kombucha at high and medium doses doses was able to overcome the CY-induced...

The beauty of science & technology is that as in a while there comes an invention that calmly replaces on existing paradigm and brings about profound changes in the every sphere of life including day-by-day innovations during implementation of engineering projects with continuous improvements toward...

EPP load-bearing insulation concrete is prepared by adding EPP particles into the cement mortar matrix.In order to study the deformation performance of three kinds of EPP load-bearing concrete with different strength grades, the axial compression test of EPP load-bearing concrete is carried out.The experimental...

Since the release of the “Evaluation Standard for Green Industrial Buildings” in 2013 and “Unified Standard for Energy Efficiency Design of Industrial Buildings” in 2017, the field of industrial buildings in China has officially entered a new era of energy-saving and emission reduction. Energy consumption...

An EES-based thermodynamic model was established to evaluate the temperature and energy performances of an on-grid bio-PCM solar cold storage system. The bio-PCM solar cold storage system comprises a 3.1 kWp monocrystalline solar PV integrated with a refrigeration system using R290 refrigerant. Its solar...

The samples of CuIn1-x-yCexCoyTe2 were successfully synthesized by vacuum arc-melting method. The structure and optical and electric properties of Ce and Co doped CuInTe2 have been investigated using Powder X-ray diffraction(XRD), scanning electron microscopy(SEM), ultraviolet and visible spectrophotometer...

To quick customize, develop and extend intelligent library internet of things system more efficiently, in this paper an approach based on runtime model to managing intelligent library wireless sensor networks is proposed. Firstly, manageability of intelligent library wireless sensors is abstracted as...

Sepiolite as catalyst carrier material, now commonly used in low temperature, for high temperature applications was very rare. ZrO2/sepiolite precursor was prepared by Chemical precipitation method, catalyst coating material was prepared at 600 , the samples were aged at 1000 . The powders with and without...

In this paper, the rigid slab hypothesis, which is widely used in high-rise buildings, would be discussed. The modal analysis results for two building structures would be presented and compared based on the ISSS [1-4], with and without rigid slab hypothesis respectively. It could be observed from the...

In snubbing service, the spherical BOP plays a vital role in shut-in well and running and pulling tubing. The shell and rubber core are the crucial components of spherical BOP, taking the three-dimensional software SolidWorks as a platform, these two components 3D model have been established, and the...

With the rapid development of seawater usage, the nitrogen and phosphorus removal of saline domestic wastewater is becoming a key problem in coastal areas. Conventional biological nitrogen and phosphorus removal technology always limited by some inevitable contradictions. The double membrane bioreactor,...

In order to determine reasonable channel layout and maintenance the dredging areas, this paper set up mathematics model of two-dimensional water flow for channel, and the numerical simulation results are verified by the observed data. Based on this, the fluid field change laws of Xigang channel in flood,...

On the basis of the traditional linear programming model,this paper presents a optimal design mathematical model of gravity branch distribution network. Considering the coupling constraint, the model takes the length of main and subordinate pipe having standard diameter as decision variables. The minimum...

The vacuum absorption method was used to fabricate the phase change material particle (PCMP) in a vacuum heating roller box, and then PCMPs were pressed to form the composite phase change energy storage plate (CPCESP) through a mould. Tests about the thermal conductivity and the heat storage and release...

Based on power bond graph-block diagram method the general mathematical models of the suspension cylinder, hydraulic pipes and accumulator are established and the simulation model is established based on SIMULINK control simulation software. A heavy-duty anti-rolling suspension system is used as a study...

Making non-stationary random excitation in automobile vibration system change into stationary one is that the sample function of random excitation studied is made into a product of two functions, one of which is a definite function, called observation function, the other is stationary random process,...

Energy and water are inextricably linked. The limited endowments, uneven temporal and spatial distribution, and low utilization efficiency of energy and water pose great challenges to China's sustainable development. In this paper, a bottom-up model (CEMES model) was developed to integrate Chinese energy...

Aiming at the shortcomings of the existing wire feeders, in this paper we design a new wire feeder which adopts pneumatic brake and new design of shafting to achieve the function of prompt braking which could significantly improve the security and reduce the labor intensity of workers. We also simulated...

This paper proposes an image mosaic algorithm based on empirical mode decomposition (EMD) transform. A complete, fast and efficient EMD image decomposition algorithm is used to decompose the image, and the inverse discrete cosine transform (IDCT) is performed on the result of the transformation. After...

This study aims to examine the effect of corporate governance on financial performance of Islamic banking in Indonesia. Corporate governance mechanism determined by board of director, independent commissioner, and sharia supervisory board, meanwhile the financial performance is calculated by using Return...

A bone defect referred as absence of bone in its areas where it is typically present. Bone defects result from trauma, tumors, or infections. Bone defects frequently occur in conjunction with significant soft-tissue injuries, including those affecting muscles, tendons, and joints. The surgeon must address...

The development of Polyamide-Al2O3 nanocomposite membranes into a solution for treating oil and gas wastewater into clean water that can be flowed back into the sea or reused as a source of clean water using simple operations, without additives, cost-effective, and has high productivity. Polyamide–Al2O3...

This paper investigates the effects of coupled physical fields on silicon materials using COMSOL Multiphysics and MATLAB, emphasizing the importance of multiphysics field coupling in material science, microelectronics, and interdisciplinary research. It builds upon foundational theories in electronic...

Every society must have a culture that is passed down from generation to generation, wherein in that culture there is indigenous knowledge, or what is called local wisdom. Integrating local wisdom in science learning can provide benefits to students about learning how to preserve culture because it contains...

To research the parallel pipeline system of household solar collector pipelines,we use the FLUENT software to simulate the parallel tubes numerically .We proposed that we can reduce the pressure drop and improve the flow distribution uniformity of parallel tubes by changing the connection angle. Comparing...

This article describes an automated resistor that is based on a resistor network and the control algorithm of successive approximations. The resistor network, consists of relays and precise resistors, has a structure of re-ducing the effect of relay' contacts resistance. The nonlinear error of the network...

In this paper, expansive soil is mixed with CKD in different proportions, and fast shear tests were conducted on the specimens with an certain initial water content and dry density; Furthermore, fast shear tests were also conducted for specimens with 10% CKD content ratio, when specimens were maintained...