bluuebunny/crossref_metadata_2025 huggingface dataset:
Organic Regulation and Remediation of Pollution of Chaolin Soil in Shandong
Authors: Qu Bairu , Wang Yang , Wang Guangkai , Liu Bo , Lei Yaodong , Song Hailong
Published: November 2020

In recent years, due to the frequent occurrence of excessive heavy metal content in the cinnamon soil in the Shandong region of China, the country and people have attached great importance to the pollution of heavy metal in the cinnamon soil. Heavy metal pollution has a wide range and long duration. Once it enters the human body, it will cause serious harm to human health. Therefore, the prevention and control of heavy metal pollution in Chaoshan soil in Shandong will be one of the focuses of current and future development in the field of environmental protection. In this paper, by sampling and analyzing the pollution of Chaozhou brown soil in Shandong area, the content range of heavy metals, accumulation and pollution of heavy metals in Chaozhou brown soil in this area were evaluated. Five organic regulators calcium-based mineral A and calcium On the effects of mineral B, biomass charcoal D, peat H and limestone E on the leaching toxicity of Cd in Chao cinnamon soil, three different types of organic regulators A, D and E were investigated in single and mixed application of Under the influence of the effective state of Cd, the compound organic regulator ADE with the best repair effect and its proportion were selected. The experimental results show that the organic mixed modifier shows a good reduction effect on the Cd effective state content in the heavy metal composite polluted tidal cinnamon soil, in which the mixed organic modifier 0.5% peat + 0.25% vermiculite + 0.25% bone meal Stone: Bone meal is 2: 1: 1) The best reduction effect.
Research Progress on High Temperature Corrosion Mechanism of Waste Incineration Power Generation Boiler
Authors: Qu Zuopeng , Zhong Rigang , Wang Lei , Zhao Wenbo , Tian Xinli , Wang Haijun
Published: November 2020

Waste incineration power generation is a main method of waste disposal, and high temperature corrosion has always been a key issue restricting the development of this technology. This paper reviews the research progress of high temperature corrosion mechanism of waste incineration boilers. Based on the chemical reaction of high temperature corrosion of chloride, the mechanism of chloride corrosion of boiler metal fittings is discussed. The analysis results show that the high-temperature flue gas corrosion mainly includes HCl gas corrosion, molten salt corrosion and sulfide corrosion. In addition, the analysis of the high-temperature soot corrosion mechanism shows that the corrosion behavior of the heated surface in the presence of sintered ash is stress cracking corrosion. This is the result of the combined effect of the stress destruction of dense sintered ash and the ion diffusion corrosion reaction of chlorine in the ash.
Study on Redesign of Scrap in Leather Design
Authors: Chen Anqi , Chen Yuan
Published: November 2020

Based on the redesign of leather trims, this paper starts from the background, theoretical status, practical application cases, attributes and design methods of leather trims, and attempts to redesign and apply leather trims in the field of clothing design. Explore its significance and development prospects.
Landscape Design of Rural Rainwater Utilization Based on LID Concept
Authors: Gui Yu , Zhang Ruixuan
Published: November 2020

This article takes farmland, roads, and rural residential areas as the starting point for effective rainwater planning and utilization. It is useful to purifies and reuses rural water sources, and promotes the improvement of rural ecosystems. Rural rainwater resources are lost and pollution is serious. The design of Low Impact Developmentrainwater use in rural landscape has become the focus of this article. This article mainly combines the rural terrain and environment, optimizes rainwater ecology, combines the use of storage gutters to form an ecological water cycle, builds rooftop gardens in rural residential areas, transforms landscape ecological vegetable gardens, and transforms permeable courtyards, and conducts landscape design. Through the ingenious combination of technology and art, landscape design such as rural rainwater collection, runoff mitigation, purification and infiltration, and agricultural applications is realized to meet the needs of household water and green irrigation, while improving the environmental quality of rural landscapes. By adopting the Low Impact Development rainwater landscape design, it highlights the sustainable development of rural landscape ecology.
Spectral Detection of Wood Moisture Content at 1899.703 Nm
Authors: Han Yushan , Fang Jian
Published: November 2020

In order to realize real-time, rapid and continuous measurement of wood moisture content, this paper studies the real-time measurement of wood moisture content based on near-infrared spectroscopy. In the experiment, a distributed feedback (DFB) laser with a central wavelength of 1899.703 nm was used as the light source, and poplar moisture content was chosen as the measured parameter to build the software and hardware system of the near infrared moisture detector. Because wood is a strong scattering medium, the modified Langbo-Beer law is adopted. The experimental measurement and data fitting of the moisture content of poplar wood showed that the true value of the moisture content of wood and the output power value of the laser measurement of the moisture content of wood could be fitted as a linear relationship within a certain range, and the correlation coefficient was above 0.90. The change trend of the measured value of the moisture content of wood was consistent with the true value, and the absolute error of the two was less than 0.15%. The experimental results show that the wood moisture content can be measured by near infrared technology.
Analysis of Pollution Sources of Heavy Metal in Farmland Soils Based on Positive Matrix Factorization Model
Authors: Yuan Sheng , Zhang Sheng , Sun Yingcheng , Guo Miao
Published: November 2020

In this research, a total of 103 samples of surface farmland soil in Jiangjin district are collected by 1000m × 1000m grid method, and the content distribution characteristics of such heavy metals as Cd, Hg, Zn, Pb, Cu, as, Ni, Cr in the soil are analyzed. Positive Matrix Factorization (PMF) model is adopted to analyze the pollution sources and contribution rates of these eight heavy metals in the study. The results show that the contribution rate of atmospheric deposition source is 19.7%, that of industrial source is 27.0%, that of natural parent material source is 35.5% and that of agricultural source is 17.8%. It can be seen from the analytical results of PMF model that human factors (64.5%) such as industrial and agricultural production is the main pollution source of heavy metal in farmland soil.
Exploration on the Architectural Design of Gymnasium Based on Compound Function---Taking Handball Hall Design of Huyi Campus of Xi’an Institute of Physical Education as an Example
Authors: Yao Yicong , Li Yueyan , Zhai Binqing
Published: November 2020

Under the trend of complex building functions, the paper tries to explore the idea and method of design for gymnasium. Taking the handball hall design of Huyi Campus of Xi’an Institute of Physical Education as an example, the paper puts forward specific design strategies in terms of function allocation, operation mode and image positioning. The purpose is to reveal the inspiration of the design concept of “compound function” for the design and development of gymnasium building.
Municipal Solid Waste Treatment System——Taking Wuhan as an Example
Authors: Lin Ruiting , Yi Wenlin , Xiao Lina
Published: November 2020

The work presented in this paper focuses on the problem of municipal solid waste in Wuhan which is becoming increasingly serious with the continuous progress of urbanization. Through literature research, we sort out and analyze the paradigms of waste treatment system of typical cities at home and abroad. By questionnaire survey, this paper makes a comprehensive analysis of current situation of municipal solid waste management in Wuhan and draws the conclusion that the waste management system is outdated and aging due to the imperfect legal system, the weak garbage sorting consciousness of residents and so on. Based on the background of Internet of things and big data, this paper puts forward some suggestions on the construction of municipal solid waste management for Wuhan.
Discussion on Construction Technology and Quality Management of Underwater Cast-in-Place Concrete Pile
Authors: Yin Jian , Yang Jing , Bai Minglong , Lv Tao , Suo Yiru
Published: November 2020

In the process of construction of underwater concrete pouring pile, it can not only improve the bearing capacity of concrete, but also improve the stability of concrete as a whole. Therefore, in order to ensure the orderly construction technology of construction of underwater concrete pouring pile, relevant construction personnel should improve their professional knowledge, and carry out relevant work mainly by improving the quality of construction of underwater concrete pouring pile technology. Construction personnel should strictly follow the requirements and process of construction of underwater concrete pouring pile technology to ensure the orderly progress of actual work, so as to make the construction of underwater concrete pouring pile technology can play its due value and effect in practice.
Rainfall Data Reconstruction Based on Chaotic Characteristics of Meteorological Factors
Authors: Li Junchen , Kong Ke , Cui Chenfeng , Zhang Zhitao
Published: November 2020

Rainfall data is a basic hydrological data, which is indispensable for the calculation of many hydrometeorological conditions. However, the acquisition of long-sequence rainfall data often has the problem of missing data. Based on the chaotic characteristics of rainfall and temperature data changes, the paper introduces temperature data with strong correlation with rainfall data into the model based on similar phase space theory for reconstruction of rainfall data. Through experiments in the Loess Plateau, the results show that the similarity between the calculated results and the real data reaches 95.17%. Compared with the traditional method, the accuracy of data reconstruction is improved.
Investigation and Analysis of Vascular Plant Flora in Xuzhou Area
Authors: Li Peigen , Zhao Haishan , Ju Shuming , Zhang Yuting , Zhu Zhiyi , Chen Jiayi , Yang Chengfang
Published: November 2020

Xuzhou is located in the northwest of Jiangsu Province, at the junction of the four provinces of Sulu, Henan and Anhui. It belongs to a warm temperate and semi-humid climate. Based on the field investigation in Xuzhou area, a total of 1037 species, 595 genera and 144 families of vascular plants were obtained. The flora has certain importance and particularity in Jiangsu area. Based on the analysis of the species diversity of vascular plants and their floristic characteristics and geographical components, it is found that there are a lot of vascular plants in Xuzhou, most of which are distributed in the world and north temperate zone, and the tropical distribution also accounts for a certain proportion, which shows that the flora is mainly the type of transition from tropical to temperate, At the same time, its flora also has some ancient elements.
Multi-Objective Optimal Management of Building Engineering Based On Ant Colony Algorithm
Authors: Xiao Lili , Zhang Ziru , Cai Shasha
Published: November 2020

Under the advanced theory, the traditional construction management mode is optimized. This paper mainly analyzes the multi-objective optimal management of building engineering based on ant colony algorithm. Based on the three indexes of building safety, quality and cost, the optimized management effect is analyzed.
Analysis of the Efficiency of Environmental Regulation on the Transformation of the Resource-based Cities
Authors: Liu Yanshan
Published: November 2020

The transformation of resource-based cities is mainly to reduce the energy consumption of industrial enterprises, improve the ecological environment, adjust the industrial structure, and solves the problem about using a single industry as the main industry of the city. Based on the panel data of 111 resource cities in China from 2006 to 2017, this paper uses panel threshold regression method to study the impact of environmental regulation on resource-based urban transformation. The results show that environmental regulation has a significant single-threshold effect on industrial energy consumption, but environmental regulation has a significant linear relationship with industrial structure adjustment. The increase in the intensity of environmental regulation can effectively reduce the use of industrial energy consumption, while promoting the rationalization of urban industrial structure. The government can increase the degree of environmental regulation, increase market openness and increase investment scale to improve the efficiency of resource-based urban transformation.
Analysis on the Competency of New Professional Farmers and Its Influencing Factors
Authors: Chen Li , Chen Zhiqing
Published: November 2020

Using the competent quality onion model, starting from the hierarchical structure, based on the four dimensions of the new professional farmers’ psychological quality, knowledge application, technical skills and management, construct a new professional peasant competency evaluation index system. Based on the survey data of 270 new professional farmers in Pujiang and Chongzhou, Sichuan Province, using factor analysis and optimal scale regression analysis, the author analyzes the competency of the new professional farmers and its influencing factors. The results show that the overall quality of the new professional farmers is not high. The individual differences are obvious. According to the level of competency of the new professional farmers, the psychological quality, knowledge application, technical skills, and management are presented in a hierarchy of internal and external expansion. For those with lower competency, management, technical skills and knowledge application have a significant positive impact and higher importance on their competency; for those with higher competency, psychological quality, knowledge application, technical skills, Management has a significant positive impact and high importance on its competency; therefore, relevant government departments should guide the social responsibility of “revitalizing agriculture”, enhance their psychological quality and strengthen knowledge based on the professional values of new professional farmers. Application and technical skills education and training, building a practical training base focusing on business management, and promoting the upgrading of the quality of new professional farmers.
Analysis of Wastewater Treatment Engineering in Reconstituted Tobacco Company
Authors: Liu Li , Nong Yanfeng , Luo Qijin , Liu Chang , Lai Houwei , Fang Wei
Published: November 2020

The wastewater of a reconstituted tobacco company in Guangdong Province has the characteristics of high concentration and complex composition. By comparison, the pretreatment (Grid / Air Flotation) and Up-flow Anaerobic Sludge Bed / anoxic / aerobic process combined with advanced treatment process (Air Flotation / Ozonation-Biological aerated filter) were applied. After stable operation of the system was achieved, the effluent quality could meet the first level standard of the maximum allowable discharge concentration of the second class pollutants in the second period of the Discharge limits of water pollutants (DB44 / 26-2001) in Guangdong Province. This paper introduces the process flow of the project and the design parameters of the main structure, and provides a reliable reference for the similar engineering design.
Application of Chinese Regional Traditional Cultural Elements in New Rural Landscape Design
Authors: Liu Yanlong , Liang Xuan
Published: November 2020

In the course of the development of Chinese history, the long history has made the traditional Chinese culture show nationality and rich connotation. Chinese elements, as one of the main signs and symbols of traditional Chinese culture, are an important part of the development of Chinese and world civilization. In the design of each part of the new rural landscape, regional cultural elements such as paper-cut shadows and Chinese calligraphy were used. Can greatly enhance the characteristics of Chinese culture. Therefore, the application of Chinese traditional cultural elements to the modern new rural landscape design is the main task faced by the new rural landscape designer. In the construction of theory and practice, this article discusses the development of the new countryside by using the Chinese element symbol and the concept method of the beautiful countryside, as a reference for the new rural landscape design. This paper obtains the proportion of the importance of the new rural landscape design principles, with inheritance and continuity accounting for 24%. This paper is mainly divided into the gaps that can fill Chinese rural cultural elements in the new rural landscape design. At the same time, I hope that more people who love culture can better understand the local culture and experience the new beautiful rural scenery. It is hoped that the results of this study will re-awaken people’s attention to regional culture.
Analysis on the Susceptibility of Debris Flow along a Highway in Gannan
Authors: Xu Chen-dong , Wang Yu
Published: November 2020

Under the background of the rapid economic growth in China, domestic infrastructure construction is also constantly improving. Thereof, the rapid development of highways and railways is outstandingly expanding. During the construction and operation of highways and railways, geological disasters often occur along the railway, which seriously endanger people’s lives and property and sustainable economic and social development. Among them, debris flow is one of the most serious geological disasters that endanger highway safety. The proposed Zhuoni-Hezuo Section of Fengxian (Shaanxi) to Hezuo (Gansu) Expressway is an important part of the expressway in Gansu Province. The d geological hazard along the expressway, debris flow, seriously threatens the safety construction and later operation of the proposed highway. Taking the debris flow along the proposed expressway as the research object, this paper comprehensively collects the geological data of the area, studies its characteristics of distribution, formation and movement on that basis, and summarizes its formation conditions and mechanism, then evaluates its susceptibility. This paper is a certain reference for the study of debris flow in the region and the governance over it in next step.
Land Management Scale, Rural Labour Migration, and Agricultural Mechanization: Evidence from China
Authors: Wu Xiaoting , Liao Kaiyan
Published: November 2020

This paper based on the panel data of 31 provinces in China from 1999 to 2014. The three-stage least squares method is used in this paper to analysis the relationship between land management scale, rural labour migration and agricultural mechanization level. The analysis reveal that the rural labour migration and the scale of land management show a U-shaped relationship. The level of agricultural mechanization is positively affecting the transfer of rural labour. In addition, we find that the scale of land management, rural labour migration have promoted the level of agricultural mechanization. The proportion of the gross agricultural output value in the GDP has a negative impact on rural labour migration.
Analysis of Characteristic of Meteorological Variables in Golmud, China during 1955-2015 and Prediction of its Future Change
Authors: Li Lan , Ni Wankui , Wu Yuanzhao , Wen Xia , Li Xuan
Published: November 2020

Global warming and its impact on socio-economic and eco-environment in the more drought-prone regions have attracted great attention. Arid regions account for about 30% of the total China’s land area, which are quite sensitive and vulnerable to climate change. The annual trends of three meteorological variables were analyzed in Golmud City during 1955-2015. The linear regression, cumulative anomaly and R/S methods were used to determine the characteristics of the meteorological variables. The Morlet wavelet transforms method was employed to detect the dynamic periodic features of the meteorological variables. The results were obtained as follows: 1) the significant increasing trends were indicated in both temperatures (0.5°C/10a, p<0.01) and precipitation (3.3mm/10a, p<0.05), the decreasing trend in evaporation (118.4mm/10a, p>0.05). This states that the climate of Golmud City was turned from cold-dry to warm-wet. 2) The Hurst indexes of each annual variable were all greater than 0.5, it suggested that there would be obvious Hurst phenomenon in the future. 3) The wavelet analysis revealed that the temperature, precipitation, evaporation, had the periods of 12-14a, 7-9a, 11-12a oscillations, respectively. 4) According to the analysis results by synthesis we can predict that there will still keep the warming and increasing trend of temperature and precipitation in the future. In general, the results of using the Mann-Kendall and R/S proved the good consistency in detection of the trend for temperature and precipitation. This study can be used as a reference for further analysis of climate as well as the impacts of climate change. More importantly it can provide theoretical support for context-specific plan for water resources development and agricultural and animal husbandry production in Golmud City.
Theoretical Logic, Dilemma Restriction and Practical Enlightenment of the Construction of WeChat Marketing Group of Characteristic Agricultural Products ——Based on the case study of Pujiang County, Sichuan Province
Authors: Liu Min
Published: November 2020

WeChat marketing has low cost, low threshold, high transparency, strong interaction and wide penetration rate. It provides an important technical means for small farmers to innovate sales models and change their weak position. It has gradually become one of the main channels for farmers to sell characteristic agricultural products. This paper takes the WeChat group of Cao Chunzhi, a farmer in Jianta Village, Pujiang County, as an example to analyze the theoretical logic of the construction of WeChat marketing group and explore the practical obstacles. At last, this article will present the practical enlightenment of the construction of WeChat marketing group based on the case.
Discussion on the Regional Brand Development of Agricultural Products
Authors: Wang Yu
Published: November 2020

The traditional model of small-scale agriculture has been unable to promote agricultural development rapidly; agriculture needs to develop rapidly through modern agricultural development models such as agricultural industrialization and industrial clusters. The integration of agricultural products and regional brands can accelerate the development of supply and demand reform on the one hand, and promote rural revitalization and agricultural industrialization on the other hand. As the development of agricultural products is an external manifestation of agricultural development, developing regional brand of agricultural products has become the top priority. This paper analyzes the theoretical basis and influence mechanism of regional brand development of agricultural products by arranging the literature of predecessors, and puts forward suggestions on the development of regional brand of agricultural products.
Preparation and Application of Waterborne Polyurethane with Starch as Soft Segment
Authors: Zhou Yan , Yang Zhiyong , Xing Renwei
Published: November 2020

The preparation of waterborne polyurethane was studied when starch acted as soft segment. The reaction conditions of preparation about the waterborne polyurethane were discussed. The infrared spectrum was used to characterize the copolymer emulsions. At the same time, the applications of the prepared starch-TDI copolymer emulsions were researched on paper coating and wet end addition in this paper. It was showed that the prepolymerization time was 2 hours and the blocking time was 25 minutes. The results of applications showed that the physical properties were improved obviously after coating or wet end addition. In addition, it was found that the coated papers had better enhancement effects than the wet end added papers.
Research on A Sweetness Measuring Instrument
Authors: Huang Jian
Published: November 2020

A sugar water sweetness measuring device is proposed, which uses STM32 single chip microcomputer as processor. Fdc2214 sensor is used to detect the concentration of sugar water. The capacitance change caused by the concentration change of sugar water is converted into 28 bit binary number, which is transmitted to STM32 through IIC interface. The corresponding relationship between the concentration of sugar water and the measured value is obtained through analysis and processing. The system displays system information through a 1.44-inch TFT LCD. The alarm threshold value is set by pressing the key. When the sugar level exceeds the standard, the alarm will be given by the buzzer. This design has the characteristics of high detection accuracy and low cost, and has high practicability.
The Development Status of Xinxiangxian Group ——Based on a questionnaire survey of 658 villages in Sichuan Province
Authors: Hu Xuebing
Published: November 2020

With the proposal and promotion of the rural revitalization strategy, Xinxiangxian, as an endogenous human resource, plays an increasingly important role in rural construction and governance. This article uses the method of literature review to sort out the connotation, characteristics, types, social functions and dilemmas of Xinxiangxian. The questionnaire survey was used to analyze the development status of Xinxiangxian in 658 villages in 21 cities in Sichuan Province, that is, the public’s awareness of Xinxiangxian, the role played by Xinxiangxian, and the main dilemmas. Finally, put forward suggestions to promote Xinxiangxian’s role in rural revitalization: propagate and promote Xinxiangxian’s spirit, vigorously create a cultural environment recognized by the masses; improve the level of rural public services, form a “pull effect” for Xinxiangxian’s return to the village; To improve the practical ability of Xinxiangxian to participate in rural construction; improve the mechanism of attracting and retaining talents, and build a broad platform for Xinxiangxian to display his talents.
Innovation and Entrepreneurship Policy Chain of Environmental Protection Industrial Park Based on the Interpretative Structural Modeling
Authors: Xin Lu , Xu Zhijie , Chen Nan , Lu Jing , Wang Zhikai , Zhao Yunhao
Published: November 2020

The environmental protection industrial park is an important carrier for innovation and development of the environmental protection industry, which provides policy support for the entire process of innovation and entrepreneurship of environmental protection enterprises. Meanwhile, it provides technology research and development, achievement transformation and technology commercialization platforms for the innovation and development of environmental protection industry, helping the environmental protection enterprises grow, transform and develop. This research selected 23 innovation and entrepreneurship policies (5 categories) of environmental protection industrial park as the influencing factors, the interpretative structural modeling of system dynamics as the research tool, to establish the interpretative structural modeling (ISM) of innovation and entrepreneurship policy chain of environmental protection industrial park. By analyzing the correlation between the park’s innovation and entrepreneurship policies, the research has established an innovation and entrepreneurship policy chain and has analyzed the research results, which is of reference significance for the park management department to issue environmental protection industry policies.
Ecological Architecture Design in Urban and Rural Planning Applied Statistical Design
Authors: Huang Zhiqin , Huang Lipu , Wang Meiling
Published: November 2020

The regional characteristic of China becomes noticeable. Urban and rural planning must consider the factors of ecological environment. Ecological architecture design will become the main direction of urban and rural planning and development, but also meet the requirements of sustainable development in China. In recent years, the status of ecological architecture design in urban and rural planning is gradually increased, and it will become the main force of the development between urban and rural. This paper will analyze the existing problems of ecological architecture in urban and rural planning, and give reasonable application strategies and feasible ecological architecture design.
Application of Photocatalytic Degradation Method in the Degradation of Trace Steam Turbine Oil in Condensed Water
Authors: Chen Yimin
Published: November 2020

In today’s thermal power plants, due to improper operation, the condensation system often drops other substances, such as turbine oil. In this way, trace oil in the condensate will contaminate the resin, corrode the thermal equipment, cause unnecessary losses to the thermal power plant, and the amount is huge. On this basis, many scholars began to study the method of removing trace oil from condensate. In this paper, we use photocatalytic degradation to help us effectively remove trace turbine oil in condensed water. Photocatalytic degradation is a chemical reaction carried out under the action of light. The photocatalytic reaction requires the reactants to absorb light energy and excite it to an excited state, and the energy source for degrading all pollutants into inorganic substances is the photon energy. This is one of the most commonly used methods for handling trace oils. This article also uses ultrasonic technology to effectively degrade trace oils. Experiments show that the photocatalytic degradation method can effectively degrade trace oil. Titanium dioxide, the catalyst used in the photocatalytic degradation method, has the best catalytic effect when the forging environment is 500°C and it is loaded twice.
The Variation of Lightning Current Parameters with Altitude in Shandong Region
Authors: Wu Mingfa , Sun Zhongxin , Tang Qiaoling
Published: November 2020

Lightning current parameters is the basis of the transmission line design and transformation essential parameters of lightning location system somewhere in shandong area ground ground lightning information lack of height of the statistical properties, not situation, the analysis of the influence of altitude on lightning parameters using global digital elevation data filled in the lightning location data in the lack of information, analysis of the lightning current parameters and the relationship between the altitude in the region. The variation of lightning current amplitude, lightning return times, ground flash density and other factors with altitude is studied, and the variation law of lightning parameters in this area with altitude is obtained. When the altitude is 1200∼2000m and 2400∼3200m, the number of lightning return stroke fluctuates greatly. When the altitude is from 2000 to 2800m, the number of lightning return strokes increases with the increase of altitude. With the rise of altitude, the proportion of normal lightning flashes in total lightning flashes in shandong area has a tendency to increase gradually. Due to the shortcomings of the above three kinds of observation data, we try to learn from each other to better reflect the lightning activity rule in shandong more comprehensively, accurately and effectively, and to provide certain theoretical basis and help for lightning protection and disaster reduction work, providing reference for the design and lightning protection transformation of power grid in shandong.
Application of High Pressure Water Jet Technology in Cleaning Polymerization Vessel
Authors: Wang Hongfen
Published: November 2020

In recent years, the demand for organic synthetic materials in chemical production process is increasing, in order to meet the growing demand for organic synthetic materials in various fields. As the core equipment, the efficient and orderly operation of polymerizer is very important to ensure safe production and improve production efficiency. Under normal working conditions, the deposition or adhesion of polymer plasticizers will inevitably occur as long as there are monomer contacts in the polymerization reaction of any process, and the adhesion of polymer products to the wall of the reactor will cause sticking problems, so regular cleaning of the reactor has become a necessary link. High-pressure water jet cleaning technology is a new type of cleaning technology emerging in the world in recent years. It has the advantages of low cost, high speed, high cleaning rate, no damage to the cleaned products, no pollution, etc. In this paper, the concept of cleaning polymerizer with high pressure water jet technology is briefly introduced. Through the study of the mechanism of the autoclave and the analysis of the characteristics of the autoclave, the cleaning of polymerizer with high pressure water jet technology is discussed.
Charging Load Management of Electric Cruise Ships Based on Price Incentive
Authors: Ling Yunpeng , Xu Ning , Zhou Bo , Li Xiaoliang , Liu Jiangmin , Xu Nan , Zhao Zihao , Nie Jing
Published: November 2020

The disorderly charging of electric cruise ships will widen the peak-to-valley difference of the power grid. Reasonable adjustment of the charging behaviour of electric cruise ships can effectively smooth the peak-valley difference and achieve peak clipping and valley filling. Based on the forecast value of the number of electric cruise ships in the Baiyangdian area in 2022, a price incentive demand-side management model was constructed and Monte Carlo simulation was used for model calculation. The results show that under the price incentive model, the electric cruise ship users are charging at the valley of electricity consumption, and the load peak-to-valley difference and load smoothness coefficient will be reduced. While electric cruise ship service providers obtain additional benefits, charging costs for electric cruise ship users are decreased.
The Influence of Geometry on the Loss of Curved Slot Waveguide
Authors: Jiang Yi , Yue Jinying , Gao Jinyu , Xu Jing
Published: November 2020

In curved slot waveguide devices, there are often waveguide bending situations. Under certain conditions, the smaller the waveguide bending geometry, the more compact device structure; the smaller the bending geometry, the greater the loss caused by waveguide bending. Based on the study of the loss of a curved slot waveguide, this paper combines the geometric dimensions with it to study the influence of the loss. A new method for calculating the loss coefficient caused by the bending of the waveguide: the effective refractive index method with fixed interference correction. Through this method, the relationship between the bending loss coefficient and the width, height and radius of curvature of the dielectric waveguide is analyzed and calculated. Compare the calculation result with the result calculated by the pattern analysis method. Finally, the results were discussed and analyzed. The conformal transformation method and the normalization method of the geometrical size to the bending loss of the waveguide are analyzed, the relationship between the bending geometrical size of the curved narrow slot waveguide and the bending loss is obtained, and the empirical formula for the bending loss is established. From the formula, four Curves of waveguide bending size and bending loss of a common material. Experimental research results show that with the improvement of bending waveguide loss theory and coupling mechanism, low-loss transmission can be achieved under small bending dimensions, so that the integration of overall geometrical dimensions is the development trend of bending.
Slotsuppression of Scattering Loss in the Side Wall of Bent Slot Waveguide
Authors: Jiang Yi , Yue Jinying , Gao Jinyu , Xu Jing
Published: November 2020

With the higher requirements of advanced integrated circuit technology, waveguides can propagate electromagnetic waves with higher frequencies, such as millimeter waves and centimeter waves, and have a large power capacity, which makes waveguides a common transmission line in the microwave band. In this experiment, based on the research of the curved slot waveguide, the method of suppressing the scattering loss of the side wall is studied. The wave optics module is used to model the optical waveguide, and the mode of the designed curved slot waveguide is analyzed, and the thickness of each layer of the optical waveguide is optimized according to the material characteristics to reduce the influence of the high refractive index substrate and reduce the curvature of the side wall Absorption of scattering loss to avoid the influence of resonance. The curved slot waveguide curved microring resonator and the curved slot waveguide racetrack microring resonator are studied, and the device performance parameters are simulated and analyzed. In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a sidewall scattering loss based on a curved slot waveguide and a preparation method. The side scattering characteristics of the waveguide multilayer memory are experimentally studied. The results show that the distribution of the scattered light intensity from the side of the waveguide along the propagation direction of the guided light exhibits an exponential decay law, and its attenuation constant is proportional to the information symbol density, and the curved slot used for recording information increases and grows.
Design of Intelligent Surveillance System for Cable Connector
Authors: Li Hongguang , Feng Xinhua , Wu Deming , Liang Lifeng
Published: November 2020

Cable connectors may fail after long-term use, causing serious economic losses. Modern technology has developed rapidly, and research and development of an intelligent surveillance system has been carried out under the background of big data and Internet to monitor each connector of the cable in real time, and make timely adjustments before failures to avoid the occurrence of failures, which is of great significance to modern residents and enterprises. The author analyzes the hardware required for intelligent surveillance of cable connectors, followed by the design of an intelligent surveillance system for cable connectors, and finally summarizes the operation results.
Summary and Research on Inner Surface Inspection of Automobile Brake Master Cylinder
Authors: Wang Gui-long , Yu Bo
Published: November 2020

In-depth analysis of the importance of the detection of the inner surface of the automobile brake master cylinder, an overview of the inspection status of the automobile brake master cylinder at home and abroad, and a detailed analysis of the detection principles and existing advantages of the current automobile brake master cylinder detection technology Disadvantages, complete the detection principle diagram of the current automobile brake master cylinder detection system, and finally discuss the research and development and economic benefits of the on-line detection system of the automobile brake master cylinder based on the integration of light, machine, electricity and calculation.
Design and Simulation of Sensor Signal Processing System
Authors: Shi Jin
Published: November 2020

In particular, the popularity of personal notebooks makes personal notebooks more rapid development, and sensor processors for cars, microwave ovens and other products are more useful, and have a great impact on the design of these products. Because of the rapid development of sensors, there are various sensors, which makes the data manual of these sensors have many different formats, so many sensor systems have their own the data use manual is different. There is also in the sensor acquisition of the signal process often mixed with noise and various interference signals. In order to solve this problem, many scientists at home and abroad have done a lot of research on this aspect. In this paper, compensation method, filtering method and noise suppression method are used to improve the signal-to-noise ratio and resolution of the sensor. And through the experimental practice, the results show that the sensor signal processing system can eliminate the noise, improve the signal-to-noise ratio and improve the resolution of the sensor, and also achieve good results in practical application.
Synergistic Effect of Electrochemistry and Water Treatment Agents in Cooling Water System
Authors: Chen Qiang , Chen Kang , Jiao Lili , Feng Changchun
Published: November 2020

The electrochemical device was combined with the water treatment agent to investigate the scale removal, and corrosion inhibition, because it was found through experiments that the descaling ability of the electrochemical device is related to the voltage of the device, and the distance between the plates, and the hardness of the water body which is the synergistic descaling rate of the electrochemical device with 2-phosphonic acid butane-1,2,4-tricarboxylic acid and sodium molybdate was 79.23%, and the scale inhibition rate was 87.34%, and the inhibition rate was 89.94% by controlling the operating conditions of the electrochemical device, the concentration factor of the system can be improved, and an effective method for saving water and energy in the circulating cooling water system is provided.
Effects of Different Light and Temperature Treatments on Seed Germination and Seedling Growth of Vegetables
Authors: Jia Xudong , Wang Ying , Jiang Jinjuan , Xiong Rui , Zhang Zhaoyun , Yang Rensheng , Cao Gaoyi
Published: November 2020

Vegetable refers to a kind of plant or fungus that can be used for cooking and becoming food. It provides a variety of vitamins, minerals and other nutrients necessary for human body. It is an important cash crop for people. Plant growth and development is greatly affected by light and temperature conditions, especially vegetables will directly affect the economic benefits. To explore light temperature conditions on the vegetable seed crop growth and development, the influence of this experiment will by creating the light of the different temperature conditions on the Thai water convolvulus, Tianjin 60 Chinese cabbage, Celandine wheat and precocious 8, four kinds of vegetable seeds processing, temperature different light on the conditions of the four kinds of vegetable seeds and seedling bud rate, root weight. Two experiments, respectively, set up four controls, the results showed that different vegetable seeds need appropriate illumination and temperature conditions vary, but most of the germination rate and grew well in about 25 °C, 18 hours of light and dark 6 hours under the condition of the most suitable for their growth.
The Study of Tidal Currents as Renewable Energy in Kelabat Bay, Bangka Belitung
Authors: Pamungkas A , Jumnahdi M
Published: November 2020

The rapid economic and population growth triggers a high demand for energy in Indonesia. This condition urges us to innovate in renewable energy which sustainable and environmentally friendly. One promising renewable energy is the tidal current energy which very potential in the island regions, such as Bangka Belitung Province. Kelabat Bay, which located in northern part of Bangka Island is a semi-closed waters and has a shallow and narrow gap in its center which separate Teluk Kelabat Luar (TKL) and Teluk Kelabat Dalam (TKD) region, which become the focus region in this research. This geographical condition allows potential energy amplification when the tides occur. Thus, this research aims to assess the potential energy of tidal currents as renewable energy in Kelabat Bay, especially at its narrow gap. The method used in this study was the numerical modelling using MIKE21 software and direct measurement to obtain tides and currents both in toward high tide and low tide condition. The current profile in Kelabat Bay is very influenced by the tidal which flow from TKL to TKD when toward high tide and vice versa toward low tide. The highest speed is measured at 15 meter depth on point 1 with speed up to 1.43 m/s. By this speed, it could be estimated 1494 watt of tidal current energy will be generated. This huge energy potential of tidal current at Kelabat Bay could be exploited to produce electricity in future works.
The effect of deproteinization temperature and NaOH concentration on deacetylation step in optimizing extraction of chitosan from shrimp shells waste
Authors: Aldila H , Asmar  , Fabiani V A , Dalimunthe D Y , Irwanto R
Published: November 2020

Chitosan have been successfully produced from the dried shrimp home industry waste (Bangka, Indonesia). Extraction of chitosan was carried out in four steps: deproteinization, demineralization, decolorization and deacetylation of chitin. The effect of deproteinization temperature and NaOH concentration on deacetylation process was studied. The results shown that the increase of deproteinization from 30°C to 90°C causes the decrease of chitosan deacetylation degree (DD). The increase of deproteinization temperature triggers excess depolymerization which damages the chitin structure so that it has a negative effect on the chitosan DD. On the other hand, the increase of NaOH concentration from 20% to 60%, the chitosan DD increased. The diffusion rate of OH” causes increment of OH” attack to the amino group thus realizing the effective deacetylation of chitin. The highest chitosan DD was up to 88.89% is achieved under the optimized conditions of this process and the occurrence of deacetylation structurally demonstrated by the Fourier transform infrared (FTIR) characterization
Characteristics of harmonic distortion and disturbance in frequency 9-150 kHz of the grid-connected rooftop photovoltaic system for various types non-linear household loads
Authors: Marganda N , Sudiarto B
Published: November 2020

The usage of Photovoltaic (PV) energy system as a solar power plant has been growing rapidly in the world, because it is clean without emitting greenhouse gasses. The rapid development of power electronics technology has an impact in the development of PV system and the usage of non-linear household appliances that use inverter technology. In PV system, an inverter is used to convert direct current (DC) power from sunlight to alternating current (AC). Inverters usually have a switching rate higher than 1 kHz, which may cause waveform distortions and disturbances in AC power output, such as harmonics and disturbance in the frequency range 9-150 kHz. These disturbances may affect the performance of equipment, as well as neighbor equipment connected to the same network. This research is focused on analyzing the effect of current flowing in the non-linear household loads (induction cooker and compact fluorescent lamp) to the harmonics distortion (THDi, TDDi and harmonic voltage distortion) and disturbance in frequency 9-150 kHz on the Grid-connected Rooftop PV System by conducting laboratory measurement using a computer-based oscilloscope and power quality analyzer. The results show that the variation of current flowing in the equipment affects the harmonics distortion and disturbance in frequency 9-150 kHz.