Huayin Wang, Wei Sun, Dian Chen, Xinyu Xu, Mohan Cheng, Yiwen Gao
Abstract: With the development of science and technology and the accelerated pace of society, people are increasingly pursuing a convenient way of life. The art of making tea in traditional Chinese tea culture, although rich in deep cultural heritage, is difficult to adapt its cumbersome steps to the modern fast-paced life. In order to solve this contradiction, this paper applies TRIZ theory to optimize the design of fully automatic tea cup equipment, aiming to realize the automation of the tea brewing …
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Huayin Wang, Wei Sun, Yingzhi Feng, Lejing Lv, Qianru Li
Abstract: With the accelerated pace of modern society, there is a contradiction between the tedious steps of traditional tea ceremony and the convenient lifestyle. In order to solve this problem, this study applies the TRIZ theory to optimize the design of the fully automatic tea ceremony teapot robot arm. Through the "nine-screen method", the traditional tea-making process was comprehensively analyzed, the key steps were identified, and the cultural significance and technical requirements of each step …
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Tao Zheng, Ying Tao, Xudong Luo, Xin Qi, Jingming Zhao, Xingbu Wang, Xiangtong Fei, Lianyong Wang
Abstract: To tackle the problem of excessive nitrogen oxide emissions during the denitration process of the lime rotary kiln at Beitai Iron Mine, it was proposed to integrate ultra-low temperature SCR denitration catalysts and a moving-burden bed reactor into a radial combined desulfurization and denitration device to achieve ultra-low temperature denitration in a low-sulfur state. The self-built integrated device features two desulphurization beds and one denitration bed, through which the flue gas …
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Xueling Li, Yanlong Du, Yang Liu
Abstract: After the explosion of the warhead shell fragments will consume a portion of the charge release energy, a method of calculating the shockwave overpressure value of the explosion of the warhead is to calculate the shockwave overpressure value by firstly converting the actual charge C of the warhead into the charge CEB of the bare charge, and then converting CEB into TNT equivalent. Experimental results were used to compare the calculation error size of the two models for calculating the …
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Shuyang An
Abstract: As a new semiconductor material, graphite-phase carbon nitride can be effectively used in the utilization of renewable energy and environmental pollution control. Because the preparation of graphite-phase carbon nitride is complicated with different optimization strategies in various industrial fields, the preparation and modification of graphite-phase carbon nitride are summarized in this paper. Combined with the excellent performance of graphite-phase carbon nitride in the band gap, specific …
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Bin Wen, YinZhen Zeng
Abstract: As urbanization accelerates globally, the demand for electricity continues to rise, especially within high-voltage power transmission systems. Cross-linked polyethylene (XLPE) cables have become crucial due to their exceptional insulation properties and mechanical characteristics. However, the buffer layers of XLPE cables may undergo aging and faults caused by various factors, including electrical aging, thermal aging, chemical impacts, and improper design. This paper synthesizes existing …
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HanJie Wu
Abstract: In proton exchange membrane fuel cells (PEMFC), the bipolar plate is a crucial component. Positioned between the anode and cathode, it supports the electrode reactions and provides pathways for gas flow. Made of conductive materials, it boasts excellent conductivity and mechanical stability, capable of withstanding the current generated by electrochemical reactions and resisting the corrosive and oxidative environments within the system. Thus, to ensure efficient energy conversion, the bipolar …
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Qiyu Chen
Abstract: Surface-enhanced Raman spectroscopy (SERS) is a non-destructive and ultra-sensitive tool for optical trace detection. However, the complex manufacturing process hinders the application of SERS. For this reason, an embedded cascaded microsphere structure is proposed in this paper, which is easy to integrate and process. Such a structure is composed of large microspheres and small microspheres with micropores cascaded. More importantly, the micropore diameter at the bottom of the large …
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Ziqiao Luo, Mingyan Gu, Quan Quan, Zizhan Jiang, ChengMing Wang
Abstract: The semiconductor industry stands as a pillar of modern technological progression, yet it grapples with significant environmental challenges, predominantly due to the emissions of perfluorinated compounds (PFCs). PFCs, critical in semiconductor manufacturing processes like dry etching and chemical vapor deposition (CVD) chamber cleaning, present a dire environmental concern given their high Global Warming Potential (GWP) and persistent nature. This treatise delves into a comprehensive analysis …
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Bo Li, Chengcao Guo
Abstract: Thin-walled parts are widely used in precision instruments, automobiles and other fields for their high strength, light weight and other characteristics. However, in the process of CNC milling, as the thickness of the parts decreases, their rigidity gradually decreases, resulting in the machining process is very easy to produce vibration, and even chatter, which seriously affects the accuracy and surface quality of the parts. Traditional manufacturing methods usually use conservative cutting …
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Quanyi Guo, Chen Chong
Abstract: In order to optimize the crack image detection technology and realize edge feature detection, an edge detection model based on Visual Geometry Group (VGG) algorithm is constructed based on multi-scale supervised model and convolutional neural network (CNN). Then, a lightweight network is introduced to optimize the model, and a significant analysis is made with the classical algorithm. Compared with the mean absolute error (MAE), the performance advantage of the optimization algorithm is further …
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Shuhan Yin
Abstract: High nickel terterial oxide, with high specific capacity and low cost advantages, is the preferred positive electrode for high specific energy lithium-ion power batteries at present. However, the high nickel ternary cathode material is easy to have side reactions with the electrolyte in the high delithium state, which can not only lead to the dissolution of transition metal ions and the formation of the surface salt phase, but also cause the lattice oxygen loss and surface interface side …
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Chengyu Kui
Abstract: The article reviews the research advances on halogen-free flame retardant rigid polyurethane foam (HFR-RPUF), mainly covering three categories of flame retardants: additive, reactive and coating. The additive category includes different types such as organic, inorganic, bio-based, microencapsulated, expandable graphite. The reactive category introduces some flame retardants that can react with isocyanate or hydroxyl groups. The coating category presents examples of some organic, inorganic and …
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Guihan Peng, Liqiong Yu, Baomin Yao, Huiling Luo
Abstract: In order to study axial pressure performance of sea sand concrete filled CFRP-steel-CFRP composite circular tubular stub column, the finite element model of composite constrained short column was established by using ABAQUS, based on experimental research. The accuracy of the finite element model was validated by comparing the finite element with the experimental data. Furthermore, the influence of the number of CFRP layers, the tensile strength of CFRP and the thickness of steel tube on the …
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YaQiong Liang
Abstract: In the transition area between highways and bridges, settlement often occurs. Even in the transition zone, small differences in settlement between bridge piers and embankments can easily lead to the occurrence of bridge head jumping events. Bridgehead jumping not only affects the comfort, speed, and safety of driving, but also creates a negative impression on the overall image of highways, shortening the service life of cars. At the same time, it can also affect the efficiency and availability …
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Chongpeng Han, Jiawei Zhu, Xu Zhang, Yang Xue, Qingguo Diao, Qinfang Rong, Runtong Zheng, Zhenwei Xie
Abstract: In order to mitigate the latent hazards caused by fuel retention in the gas turbine and ensure a higher ignition success rate, an investigation was conducted on the impact of fuel heating on the gas turbine. By incorporating a fuel heating device into the gas turbine, experiments were carried out to evaluate its heating performance at different positions within the fuel system. The objective was to elevate the temperature of the main fuel pipe prior to ignition, thereby reducing ignition success …
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Jiankang Shang, Zheng Zhang, Yunteng Zhou, Lulu Qin, Yongcai Wang, Zhao Niu, Lingyan Ding, Fuli Yin
Abstract: As an underground structure that can accommodate multiple municipal pipelines, the utility tunnel can not only coordinate the planning, construction, and management of various municipal pipelines, but also achieve intensive development of urban underground space. In theory, any municipal pipeline can be included in the utility tunnel, thereby eradicating phenomena such as "road zippers" and "aerial spider webs" in the urban construction process. As a massive underground structure, the utility …
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Han Wang, Yiwen Cui, Yusheng Wang, Jiajie Huang, Canwei Shu, Yuanyuan Wang, ianjun Chen, Huaiyuan Li
Abstract: The correct control of the maturity of flue-cured tobacco leaves is an important guarantee for improving the intrinsic quality of tobacco leaves, and it is also the premise for ensuring and improving the quality and external quality of cured tobacco leaves. In order to quantify the maturity of flue-cured tobacco, the chlorophyll meter was used to measure the leaves with different harvesting maturity levels of the middle and upper leaves, and the correlation between the measured value of …
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Xinpei Liu, Honglin Mou, Zengrong Hu
Abstract: ER308L stainless steel welding wire was used for laser repair of LZ50 train axle steel sample. A large number of defects, such as microcracks, pore shrinkage and porosity, can be found in the re-manufacturing sample. A wave-like structure was formed at the boundary of the fusion zone between the augmented repair material and the base material, and the structure in this zone was consist of about 83% martensite and about 17% austenite, In the ER308L stainless steel welding wire repair zone, …
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Zhuoran Ji
Abstract: Flexible dye-sensitized solar cells are highly valued as a practical technology with low production costs. In this paper, we study flexible dye-sensitized solar cells consisting of nanocrystalline TiO2 thin-film electrodes based on titanium metal and counter electrodes based on conductive coated polymers. In order to improve the photoelectric conversion efficiency, nanocrystalline TiO2 film electrodes and TiO2 nanotube film electrodes based on titanium metal and TiO2 nanotube film electrodes are …
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Jing Sun, Jingwei Song, Yongjie Wang
Abstract: In order to study the influence of kinematic pair clearance on the dynamic characteristics and pointing accuracy of 3-RRCPR parallel pointing mechanism, the dynamic model of spatial mechanism with three-dimensional revolute pair clearance is established. Firstly, the revolute pair mode considering three-dimensional clearance is established, and the normal and tangential contact force models between the kinematic pair elements are established based on Flores contact model and modified Coulomb …
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Sha Luo, Qingdang Li
Abstract: With the continuous extension of the application scenarios of industrial robots, industrial robots have made great contributions to increase productivity and automation in the industrial field. And trajectory planning of industrial robots is the key link for its successful completion of tasks. In order to deeply analyze the mechanism of trajectory planning of industrial robots, this paper firstly introduces the principle of trajectory optimization. And then it reviews the relevant theories and …
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Xiaoyu Wu, Linhao Feng
Abstract: Modification and Reduced Graphene Oxide (rGO) Composites Based on MoS2: Improvement of Electrocatalytic Hydrogen Evolution Performance
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Leyu Cao, Tianwei Hou, ,Anna Li, Xin Sun, Zhengyu Song, Jun Wang, Wei Chen
Abstract: In order to overcome the reflecting-only issue of the conventional reconfigurable intelligent surface (RIS), simultaneous-transmitting-and-reflecting reconfigurable intelligent surface (STAR-RIS) stands as a potential solution for providing access services to the users located at the full space. By utilizing the omnidirectional properties of STAR-RIS, non-orthogonal multiple access (NOMA) users on both sides can be served simultaneously. By making the signal reflected by STAR-RIS coherent …
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Bin Tang, Wei Shao, Yan Wang, MengWei Yang, QingGang He
Abstract: Organic electrode materials hold great promise for advancing the development of aqueous batteries due to their structural diversity and sustainability. However, they still encounter challenges such as low electroactive mass contribution and undesirable cycling performance resulting from intrinsic poor electronic conductivity. Herein 1, 2-dihydroxyphenazine (DHP) was designed based on phenazine. Compared with the negative electrode of phenazine, the introduction of hydroxyl groups can reduce the …
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Bin Tang, Wei Shao, Yan Wang, MengWei Yang, QingGang He
Abstract: With the increasing demand for large-scale energy storage, water-based energy storage batteries have attracted much attention due to their low cost, environmental friendliness, high ion conductivity, and safety. Compared with inorganic electrode materials, the controllable structure of organic electrode materials has been widely studied, among which triazine materials are considered as very promising organic electrode active materials due to their low cost, non-toxicity, and sustainable …
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Feifei Sun
Abstract: Due to the unique physicochemical property of strong water sensitive glutenite reservoirs, a series of problems may occur during water injection development, seriously affecting production efficiency and economic benefits. This study analyzed the problems and their causes in the water injection development process, constructed a water injection optimization model based on machine learning algorithms, and rigorously verified and evaluated the performance of the model. The results show that the …
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Rui Kong, Yu Lin
Abstract: The method of CO2 hydrogenation to methanol can effectively reduce carbon emission and has wide application prospects in chemical industry and environment. Therefore, methanol synthesis is an important way to save energy, reduce emission and transform energy utilization. In this paper, the mathematical model of methanol synthesis reactor is established. Under the condition of controllable cooling temperature, the optimization is carried out with maximum methanol yield and CO2 utilization rate. …
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Lifang Song, Ruixiang Song, Yunfeng Li, Xinjing Zhang, Lei Li, Meng Zhang
Abstract: In order to understand the changing law of frost date (number) in Jilin Province, and to improve the early warning and forecasting ability of frost disaster, Based on the day-by-day minimum temperature data from 47 meteorological observation stations in Jilin region from 1969 to 2020, the spatial and temporal distribution characteristics of frost date (number) were analyzed by using linear propensity ratio, Mann-Kendall method and sliding t-test, as well as REOF. The results show that: the first …
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