Gongcheng Kexue Yu Jishu/Advanced Engineering Science

Gongcheng Kexue Yu Jishu/Advanced Engineering Science (ISSN: 2096-3246) is a bi-monthly peer-reviewed international Journal. Gongcheng Kexue Yu Jishu/Advanced Engineering Science was originally formed in 1969 and the journal came under scopus by 2017 to now. The journal is published by editorial department of Journal of Sichuan University. We publish every scope of engineering, Mathematics, physics.

Submission Deadline
( Vol 54 , Issue 04 )
28 May 2022
Day
Hour
Min
Sec
Publish On
( Vol 54 , Issue 04 )
30 Jun 2022
Scopus Indexed (2022)

Aim and Scope

Gongcheng Kexue Yu Jishu/Advanced Engineering Science (ISSN: 20963246) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are in the following fields but not limited to:

Agricultural science and engineering Section:

Horticulture, Agriculture, Soil Science, Agronomy, Biology, Economics, Biotechnology, Agricultural chemistry, Soil, development in plants, aromatic plants, subtropical fruits, Green house construction, Growth, Horticultural therapy, Entomology, Medicinal, Weed management in horticultural crops, plant Analysis, Tropical, Food Engineering, Venereal diseases, nutrient management, vegetables, Ophthalmology, Otorhinolaryngology, Internal Medicine, General Surgery, Soil fertility, Plant pathology, Temperate vegetables, Psychiatry, Radiology, Pulmonary Medicine, Dermatology, Organic farming, Production technology of fruits, Apiculture, Plant breeding, Molecular breeding, Recombinant technology, Plant tissue culture, Ornamental horticulture, Nursery techniques, Seed Technology, plantation crops, Food science and processing, cropping system, Agricultural Microbiology, environmental technology, Microbial, Soil and climatic factors, Crop physiology, Plant breeding,

Electrical Engineering and Telecommunication Section:

Electrical Engineering, Telecommunication Engineering, Electro-mechanical System Engineering, Biological Biosystem Engineering, Integrated Engineering, Electronic Engineering, Hardware-software co-design and interfacing, Semiconductor chip, Peripheral equipments, Nanotechnology, Advanced control theories and applications, Machine design and optimization , Turbines micro-turbines, FACTS devices , Insulation systems , Power quality , High voltage engineering, Electrical actuators , Energy optimization , Electric drives , Electrical machines, HVDC transmission, Power electronics.

Computer Science Section :

Software Engineering, Data Security , Computer Vision , Image Processing, Cryptography, Computer Networking, Database system and Management, Data mining, Big Data, Robotics , Parallel and distributed processing , Artificial Intelligence , Natural language processing , Neural Networking, Distributed Systems , Fuzzy logic, Advance programming, Machine learning, Internet & the Web, Information Technology , Computer architecture, Virtual vision and virtual simulations, Operating systems, Cryptosystems and data compression, Security and privacy, Algorithms, Sensors and ad-hoc networks, Graph theory, Pattern/image recognition, Neural networks.

Civil and architectural engineering :

Architectural Drawing, Architectural Style, Architectural Theory, Biomechanics, Building Materials, Coastal Engineering, Construction Engineering, Control Engineering, Earthquake Engineering, Environmental Engineering, Geotechnical Engineering, Materials Engineering, Municipal Or Urban Engineering, Organic Architecture, Sociology of Architecture, Structural Engineering, Surveying, Transportation Engineering.

Mechanical and Materials Engineering :

kinematics and dynamics of rigid bodies, theory of machines and mechanisms, vibration and balancing of machine parts, stability of mechanical systems, mechanics of continuum, strength of materials, fatigue of materials, hydromechanics, aerodynamics, thermodynamics, heat transfer, thermo fluids, nanofluids, energy systems, renewable and alternative energy, engine, fuels, nanomaterial, material synthesis and characterization, principles of the micro-macro transition, elastic behavior, plastic behavior, high-temperature creep, fatigue, fracture, metals, polymers, ceramics, intermetallics.

Chemical Engineering :

Chemical engineering fundamentals, Physical, Theoretical and Computational Chemistry, Chemical engineering educational challenges and development, Chemical reaction engineering, Chemical engineering equipment design and process design, Thermodynamics, Catalysis & reaction engineering, Particulate systems, Rheology, Multifase flows, Interfacial & colloidal phenomena, Transport phenomena in porous/granular media, Membranes and membrane science, Crystallization, distillation, absorption and extraction, Ionic liquids/electrolyte solutions.

Food Engineering :

Food science, Food engineering, Food microbiology, Food packaging, Food preservation, Food technology, Aseptic processing, Food fortification, Food rheology, Dietary supplement, Food safety, Food chemistry. AMA, Agricultural Mechanization in Asia, Africa and Latin America Teikyo Medical Journal Journal of the Mine Ventilation Society of South Africa Dokkyo Journal of Medical Sciences

Physics Section:

Astrophysics, Atomic and molecular physics, Biophysics, Chemical physics, Civil engineering, Cluster physics, Computational physics, Condensed matter, Cosmology, Device physics, Fluid dynamics, Geophysics, High energy particle physics, Laser, Mechanical engineering, Medical physics, Nanotechnology, Nonlinear science, Nuclear physics, Optics, Photonics, Plasma and fluid physics, Quantum physics, Robotics, Soft matter and polymers.

Mathematics Section:

Actuarial science, Algebra, Algebraic geometry, Analysis and advanced calculus, Approximation theory, Boundry layer theory, Calculus of variations, Combinatorics, Complex analysis, Continuum mechanics, Cryptography, Demography, Differential equations, Differential geometry, Dynamical systems, Econometrics, Fluid mechanics, Functional analysis, Game theory, General topology, Geometry, Graph theory, Group theory, Industrial mathematics, Information theory, Integral transforms and integral equations, Lie algebras, Logic, Magnetohydrodynamics, Mathematical analysis.
Latest Journals
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-12-01-2022-108
Total View : 4

Abstract :

As the controlling reservoir that possesses a large storage capacity in Yellow River, the operation of Xiaolangdi Reservoir (XLD) is of great importance to the reservoir maintenance and the downstream channel shaping. Considering the integrated economical profit of power generation and sediment discharge, an operation model of XLD was established by coupling the calculations of water-sediment balances with the calculation of power generation. There were two types of optimization objectives: the maximum of power generation and the maximum of integrated profits. The hydrographs of water level, discharge and turbine output were constrained according to the regulation rules during the late sediment-retaining period of the XLD Reservoir. The model was solved by the dynamic programming,and was adopted to obtain different operation schemes under different optimization objectives in a typical dry year of 2015 and a typical high flood year of 2012. The results showed that: 1) with the power generation as the optimization objective, the operation scheme could to energy outputs of 7.130×109 kW·h in 2015 and 10.215×109 kW·h in 2012, 2) with the integrated profits as the optimization objective, an annual power outputs of 7.017×10 9 kW·h and 9.524×10 9 kW·h could be achieved in 2015 and 2012 respectively, along with sediment discharges of 31×10 6 t and 166×10 6 t; 3) when comparing these two schemes with different optimization objectives, it could be found that both schemes would finally achieve an increase in the integrated profits, whereas the latter would result in a larger increase by sacrificing part of the power generation in exchange for profits a silting reduction in the reservoir; 4) optimization schemes in both typical years would produce an increase in power generation and integrated profits, with a larger increase being obtained for the typical high flow year. Furthermore, some suggestions were also proposed for improving the current operation schemes in some typical years.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-12-01-2022-107
Total View : 3

Abstract :

A deep understanding of the loading and unloading rate effect of rock mass mechanical response under mining stress path is an important basis for defining the optimal advancing rate of actual working face. Based on the initial crustal stress environment of Pingdingshan mining area, the evolution law of stress under the condition of protective layer mining with the depth of kilometer was analyzed quantitatively. The research on the mechanical behavior of coal and rock mass under different unloading rates was carried out, which was more in line with the real stress state. At the same time, the comparative analysis with the results of tests without considering the mining was carried out. The results showed that 1) In the conventional triaxial compression test, the strength of the sample was less affected by the unloading rate, and there was no obvious change at 1~4 MPa/min, and only when it reached 5 MPa/min, the strength increased significantly to about 115 MPa. 2) With the increase of unloading rate, the strength of coal and rock mass showed a trend of decreasing, rising and falling again. The strength of coal and rock mass reached the maximum under the unloading rate of 1 MPa/min and 4 MPa/min, and its peak stress was about 64 MPa, which was 12% higher than that of 3 MPa/min sample. 3) The micro cracks could be fully developed and expanded under low unloading rate, and the fracture density of the specimen decreased with the increase of unloading rate, and it was 1.61 times for 1 MPa/min and 5 MPa/min, respectively, and thus the gas drainage efficiency could be improved by properly reducing the mining speed. 4) The volume strain of coal and rock in the whole mining process at different mining speeds not only had the volume compression in the relative initial state, but also had the volume expansion in the failure stage, which could be regarded as the mining characteristics. This was obviously different from that in the relative initial state without considering the mining test, which was always volume compression under mining. The strength of coal and rock was obviously smaller, and the damage degree was greater. The research results can lay a theoretical foundation for similar geological conditions to carry out protective layer mining design.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-12-01-2022-106
Total View : 2

Abstract :

Microwave-assisted concrete aggregate recycling is a new green technology, with little pollution and low energy generated during the heating process. The influence of moisture content on the microwave heating effect and concrete strength weakening was explored, and the separation effect of aggregate and mortar in concrete after microwave heating was analysed. Different heating paths were utilized to heat the concrete test blocks to obtain their temperature rise characteristics, and the compressive strength of the test blocks with different moisture content after heating was obtained by conducting uniaxial compression tests. The testing results showed that microwave power and moisture content were two important factors affecting the concrete breaking. When the water content of the test block was relatively high, the test block would break under a short irradiation time and low temperature under higher microwave power input. The aggregate-mortar interface debonding occurred, which could reduce the adhesion of mortar on aggregate, and more complete aggregates with low mortar adhesion could be selected from the crushed concrete. The testing results may provide a reference for further development of microwave-assisted concrete recycling technology.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-12-01-2022-105
Total View : 1

Abstract :

Mountain rivers often carry a large amount of sediment in the process of flash floods and cause severe deformation of the riverbed. In particular, the riverbed of the wide and narrow rivers is adjusted sharply and the water level rises sharply, which can easily increase the risk of flood inundation in the widened rivers. The study of water and sediment transport and riverbed deformation in the evolution of mountain torrents is of great significance for flood control and disaster mitigation. In this paper, two-dimensional numerical experiments of water and sediment dynamics are used to explore the process of water and sediment transport and river bed deformation in the wide and narrow reaches under the conditions of upstream sediment changes. The results show that: when there is sufficient sand from the upstream, the flood carries the sediment in the widening section and scours the narrowing section, and the river bed is lifted up in the process of sediment transport. The main reason is that the saturated sediment transport of the channel leads to the overall siltation of the river bed, which leads to the steep rise of the upstream water level, the increase of the water surface gradient, the increase of the shear stress of the bed surface, and the increase of the sediment transport rate of the river channel, and the increase of the bed surface fluctuation of the wide and narrow reaches. The morphological resistance of the bed surface causes the upstream water level to rise; when the amount of sediment is small, the river bed is mainly scoured, the water level drops, and the water surface gradient tends to slow down.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-12-01-2022-104
Total View : 3

Abstract :

To effectively evaluate the loss of axial force for the bolts in cable clamp of suspension bridge, the influence factors analyses and application of ultrasonic identification method for cable clamp blot axial force in suspension bridge were carried out. Firstly, the axial force calculation formula was established based on the acoustic elastic effect, and the accuracy of this formula was verified by experiments. Then, effects of the non-stress acoustic time difference and stress coefficient difference on the recognition accuracy was analyzed. Finally, this method was utilized to identify the tension efficiency and the axial force loss during the lifting process. The results show that, 1) The acoustoelastic effect of bolts is obvious and the recognition error of screw axial force is less than 1.1%. 2) Identification errors caused by the coupling state of sensors and the blot geometry and material parameters are 47.7 kN and 43.1 kN, respectively. 3) The stress coefficients of different bolts are different. Identification deviation caused by the difference of stress coefficients between calibrated bolts and tested bolts is 4.75%. 4) With the increase of screw nut tightening degree, the tension efficiency can reach more than 94%, which is 95.93% higher than that before the tightening degree of nut is not controlled. The bolt axial force is seriously lost with the increase of beam weight. The measured minimum average axial force of cable clamps is 424.32 kN, which is only 56.58% of the designed axial force. In the process of beam section hoisting, the cable clamp bolts should be tensioned in time to ensure construction safety.

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