Peng Wang, Heyun Cao, Qingyong Niu, Hao Zhang
Abstract: Square shell is one structural type which is quite common to be seen in engineering. This paper focuses on the carrying capacity of square shell, and studies the influence of round radius and shell thickness on the ratio of mass to external volume and load factor under linear buckleing of shell. Numerical results show that, With the increase of round radius, the ratio will first decrease, then increase and approach that of circular shell, while the load factor will also increase. With the …
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Runbiao Liu, Jihong Guo, Enzhi Cao, Qichao Tang
Abstract: With the continuous development of new energy technology, the installed scale of new energy is getting bigger and bigger, the market competition is becoming increasingly fierce, and the cost control of investment units, reference units and manufacturers in all aspects of new energy construction is becoming more and more strict. Promoting the application of BIM in new energy engineering projects can effectively reduce the cost in the design and construction stages, and more importantly, improve …
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Qingyun Guan, Chongzheng Wang, Yi Zhang, Lin Chen, Xiayi Yuan
Abstract: Based on the smooth particle hydrodynamics method, a rain simulation model of the front windshield lower trim panel system was established in AVL PreonLab simulation software, and it was found that the risk of air conditioning inlet and wiper motor is low risk under the original scheme, but the risk of water in the cabin is greater. Considering the weakening of the sealing effect after the durability of the sealing cotton, the water may flow into the cabin; secondly, the water barrier bars on …
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Bo Zhang
Abstract: The low-temperature plasma crop seed treatment technology has opened up a new way for the application of plasma in crops, creating a new path for high and stable yield of crops, and enriching agricultural yield increasing technology. This article briefly describes the innovative development of low-temperature plasma seed treatment technology, introduces the series of applications of plasma technology in crop seeds, as well as the biological effects and activation mechanisms of plasma. It also …
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Yuchen Huang
Abstract: With the global energy crisis becoming one of the most concerned topics, the application of new energy systems has become the most popular research at present. In addition, with the emerging new energy vehicles, problems such as high calorific value and insufficient heat dissipation performance of lithium batteries for new energy vehicles have not been solved, so the research on thermal management technology of lithium batteries is essential. Based on the analysis of heat pipe research, this …
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Xin Wang, Xinshe Qi, Xinwei Gao, Cuicui Gao, Na Wang, Shasha Wu
Abstract: This article solved the problems like quantitative model of light pollution degree is established; we decision three model is used to predict the risk levels of light pollution in four different regions. In this paper, 16 evaluation indexes are selected, which are analyzed and processed by simple data reduction, and 5 indexes which have great influence factors and are widely concerned are selected. The classification model of light pollution level based on ID3 decision tree was established to …
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Xuebo Qin, Aici Jiang, Zhongao Wei
Abstract: The station foundation pit of Ningbo Metro Line 2 is taken as engineering background, the support structure form of the semi covered excavation foundation pit is introduced. The standard section of the foundation pit is considered as a plane strain problem, a force calculation and analysis model for the half cover system structure is established based on the incremental method, concentrated load of a waste truck is applied within 5.0 m cover plate range outside the middle column and an impact …
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Simin Zhu, Weiwei Ge, Liu Yang, Kaiqiang He
Abstract: It is hard to measure the crystalline heat of CL-20 accurately, not only due to the instrument precision, but also β-polymorph transforming to ε-polymorph can be found easily and frequently in the crystallization progress. This work presents a study of experiments to clarify the crystallization model of ε-CL-20 and α-CL-20 using a solvent/antisolvent method by microcalorimetry without β-polymorph appearing. The results show that the crystallization progresses of ε-CL-20 and α-CL-20 are …
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Chao Zheng, Kangwei Xiong, Jilin Jiang, Nan Zhang
Abstract: This paper takes the leachate sludge produced from the Guangzhou refuse landfill as the research object and selects sulfoaluminate cement as the fixation to solidify/stabilize the sludge. Meanwhile, bottom-slag is selected as the supplementary fixation. Through unconfined compressive strength test and Scanning electron microscope (SEM), the effect of the mixing amount of cement and bottom-slag on the sludge’s strength is systematically studied. Results show that sulfoaluminate cement can improve …
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Chao Zheng, Shuxiang Song, Nan Zhang, Kangwei Xiong
Abstract: Soil-rock mixtures are multiphase natural geological materials composed of mineral particles of multiple grain sizes, and have significant natural characteristics of multiscale material groups. In order to investigate the shear strength characteristics and deformation failure characteristics of soil-rock mixtures with multiple grain sizes under in-situ conditions in fill engineering, samples of soil-rock mixtures with multiple grain sizes under in-situ conditions were prepared, and large-scale …
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Chunyan Feng
Abstract: Chlorinated Volatile Organic Compounds (CVOCs) come from a wide range of sources and are common precursors of PM2.5 and ozone pollution, which pose a serious threat to the environment and have adverse effects on human health. Catalytic degradation is one of the effective methods to solve CVOCs pollution, which has the advantages of low operating temperature, less chlorine-containing by-products and high degradation efficiency. The core of this technology is to design and develop catalyst …
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Ruixue Miao
Abstract: As a manufacturing technology that fabricates three-dimensional objects by stacking materials layer by layer, additive manufacturing can be divided into laser fused deposition, electron beam fused deposition, inkjet printing and so on based on different additive manufacturing processes. In recent years, remarkable progress has been made in the additive manufacture of polymer materials. Firstly, the additive manufacturing equipment and process parameters suitable for polymer materials have been …
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Jiahui Huang
Abstract: This paper aims to quantitatively analyze the influence of mine geological engineering on regional geological environment, and discuss the application and optimization of sustainable development strategy in this field. This paper first analyzes the main types of mine geological engineering and its influence mechanism on geological environment, then evaluates these influences and discusses the practice and effect of sustainable development strategy in mine geological engineering. This paper puts …
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Xiaoli Zhao
Abstract: The objective of our research is to scrutinize the presence and singularity of the comprehensive potent solution for the half-wave Schrödinger equation characterized by order. Take into account the nonlinear half-wave Schrödinger equations represented by order: . We apply the Brezis-Gallouet style inequality to attain a logarithmic form of regulation. These rationales will be pivotal in validating our primary theorem within Global Well-Posedness. When discussing global Solutions, we infer the …
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Haipeng Xi
Abstract: Ceramic membrane - ozonation coupling is a promising wastewater treatment process, which combines the functions of membrane filtration rejection and advanced oxidation degradation. Abundant experimental studies have been carried out on this coupling system, but there is still a lack of comprehensive review. In this paper, the latest progress of this system is reviewed. Firstly, the configuration of the coupling system is briefly introduced. Then, the mechanism of the system is introduced. In …
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Haoran Xu, Chengan Jiang, Chengfei Xu, Yanni Jiang
Abstract: To solve the defects of insufficient heating capacity and high energy cost in the traditional heating mode of the thermal power plant, two 300 MW pumped-condensing air-cooled heating units are retrofitted by adopting a high backpressure operation mode and utilizing the low-temperature heat source quality-improving hybrid heating technology. It is found that when the load is 210 MW and the operating back pressure is 45 kPa and 54 kPa after the retrofit, the consumption of standard coal for every …
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Yizhong Tang, Chuanxiu, Yueliang Cheng, Wei Cang
Abstract: Combined heat and power (CHP) has important application value for realizing sustainable energy development and building a green and low-carbon society, but the complex internal energy structure and equipment coupling relationship also brings challenges to its operation optimization. In this paper, the energy optimization scheduling is studied on the natural gas cogeneration industrial park microgrid, and a multi period dynamic optimization scheduling model for the natural gas cogeneration …
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