bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Research on Mathematical Model and Prediction Method for Raw Tobacco Material Quality Based on Cluster Classification
Authors: Shu Hao , Gao Song , Xiong Bin , Yan Qunshan , Wei Pei , Wang Ziwei , Tong Yuxing , Le Xi , Chen Yizhen , Liu Zhichang , Chen Dezhi , Xu Jun , Wang Yi 
Published: March 2021

Abstract
The chemical components of 189 kinds of Chinese tobacco materials were analyzed. There were obvious correlations between the total sugar content and reducing sugar content, total sugar content and total nitrogen content, reducing sugar content and nitrogen content, nicotine content and nitrogen content, respectively. There were certain correlations between chemical components and quality evaluation score of the tobacco materials. Total sugar and reducing sugar content showed similar correlations, while nitrogen, chloride ion and nicotine content showed similar correlations. The correlation between each single component and the quality evaluation score was not strong, and it was difficult to be used as a classification standard. Using the cluster classification method, the tobacco materials were well classified into three clusters. For each cluster, a reasonable relationship between the quality evaluation score and the chemical component contents of the raw tobacco material was set up. The method for rapid evaluation of tobacco quality score were established based on these results.
Study of the Physiological and Ecological Characteristics of Peperomia Tetraphylla Stressed on Phenol solution
Authors: Liu Panliang , Wang Jinxiang , Chang Guohua 
Published: March 2021

Abstract
The paper aims to study the change of physiological and biochemical indexes through simulating the effect of different concentrations of phenol solution on the growth of peperomia tetraphylla. Then explore the degree of intimidated, and reveals whether the peperomia tetraphylla could regard as the best plant to absorb the phenol and purify the wastewater. Chlorophyll and malondialdehyde (MDA) were regarded as the physiological and biochemical indexes. The results indicated that under the stress condition which the concentration of phenol is 100 mg/L, leaves of peperomia tetraphylla on the content of chlorophyll and MDA had both increased significantly, it suggests that under the concentration that peperomia tetraphylla has very good adaptability. Under the stress condition which the concentration of phenol is 80∼200 mg/L, stem of peperomia tetraphylla on the content of MDA had increased.
A Novel Method to Restrain Ambient Noise Interference in Transformer Noise Test
Authors: Wu Xiaowen , Li Gang , Cao Hao , Lu Ling 
Published: March 2021

Abstract
A preprocessing method based on wavelet packet decomposition and spectral subtraction algorithm is proposed in this paper. The tested original noise signal is decomposed with the wavelet packet analysis. It is divided into several bands with different frequency range. In these bands, the noisy signals are further processed by spectral subtraction method. The theoretical analysis result shows that the proposed method is effective in restraining the influence of surrounding noises on the result of transformer noise measurement. The proposed method can be referenced for the noise measurement of power transmission and transformation projects.
Research on the Influencing Factors of Hotel “Green and Low Carbon” Behavior on Consumer Experience
Authors: Chen Xiaolin 
Published: March 2021

Abstract
In recent years, with the rapid development of China’s tourism industry and the increasing frequency of business activities, the hotel industry has developed rapidly, and the country has paid more and more attention to environmental protection. More and more “green hotels” have come to the fore. A lot of efforts have been made to keep up with the situation. Customers will encounter various “green and low-carbon” behaviors made by the hotel when they consume in the hotel. For consumers and hotel operators, the consumption experience is very important and affects consumption. There are many factors that affect the consumer experience. Therefore, a systematic analysis is needed to learn the specific influencing factors, so as to better manage the hotel.
Experimental Study on the Constitutive Relationship of Epoxy-Coated Reinforcement to Seawater Sea sand Recycled Concrete
Authors: Zhang Yi jian , Gao Xu , Li Chuanxi 
Published: March 2021

Abstract
In order to study the constitutive relationship between the seawater sea sand recycled concrete (SSRC) and the epoxy-coated reinforcement (ECR), the pull-out tests were performed. There were totally 24 specimens with different types of concrete (natural aggregate concrete, recycled aggregate concrete and SSRC), strength grades (C20 and C25), bond lengths (3d, 5d and 8d), reinforcement types (ordinary steel bars and ECR) and cover thicknesses (67mm and 42mm). Test results indicated that the bond-slip curve of SSRC to ECR was similar to that of RC and OC, which can be divided into three stages: the micro-slipping, the slipping, and the declining. In the case of SSRC specimen and ECR specimen whose protective layer has a thinner thickness, the curvature of the ascending section of the curve decreased significantly. As to SSRC specimen with a higher strength and ECR with a shorter bonding length, the descending section of the curve tends to be flat. Finally, the expression of the bond-slip constitutive relationship between SSRC and ECR was proposed, which can shed light on theoretical analysis and practical engineering.
New Type of Smoke Purification Device in Smoking Room
Authors: Han Wenyu , Xing Jiaqi , Li Jiacheng 
Published: March 2021

Abstract
In order to solve a series of problems existing in the existing smoking rooms in public places, such as poor indoor environment, the second-hand smoke is easy to adhere to the wall, tables and chairs, etc.In addition,the smoking room and the surrounding environment are easily polluted due to the low smoke collection and processing capacity. The device adopts the method of isolating and sucking the smoke by rotating jet shielding device, combining Nano crystalline adsorption with electro Fenton electrolysis the flue gas is treated. Compared with the traditional smoking room, it has better emission reduction benefits in reducing smoke emissions.
Comprehensive Treatment Device for Harmful Substances in Printer
Authors: Cao Xuewei , Lu Shiqi , Xu Jinfeng , Lei Ziyu 
Published: March 2021

Abstract
With the rapid development of Internet, the sales of printers are increasing at an average rate of nearly 8%. According to statistics, the annual output of printers in China exceeds 60 million. As a new product of high-tech development, laser printer provides us with a higher quality, faster and lower cost printing method. At present, the processing methods of harmful substances produced by printing equipment are mainly used in large copy shops and printing factories. The related environmental protection printers are also in the development stage, which leads to the increase of the incidence of rhinitis, lung cancer and other diseases in the office in recent years. Based on the above background, this work designs a printer harmful substance absorber, which can absorb and process the harmful substances produced by the printer through the device fixed on the printer, so as to reduce the damage to the office air quality, which has high feasibility and necessity of emission reduction.
Sludge Desilting Treatment Device for Urban Pavement Sewer
Authors: Yun Hanfang , Wu Xuejian , Hao Zekun , He Shiji , Cao Xuewei 
Published: March 2021

Abstract
The purpose of this project is to design a sludge cleaning device with wider applicability, simpler operation and better effect, so as to fill the vacancy of sludge cleaning device in domestic small and medium-sized sewer. These devices are not widely used in our country because of their high cost, not suitable for small and medium-sized pipelines and need to be put into wells manually. In this project, a small and medium road sludge cleaning device is designed to solve these problems. The device only needs one person to control, and the whole dredging process is completed by the device independently, which makes cleaning faster and simpler, and has good environmental adaptability.
Health risk assessment of soil Contaminated by As-containing CWAs from JACW
Authors: Liu Xiangcui , Zhao Wenbo , Zhu Yongbing , Ji Chao , Liu Zhe 
Published: March 2021

Abstract
The environmental investigation, sampling analysis and health risk assessment were carried out on the soil contaminated by As-containing chemical warfare agents (CWAs) from Japanese abandoned chemical weapons (JACW) in Northeast China, referring to “Technical Guidelines for Risk Assessment of Soil Contamination of Land for Construction”. The results indicated that the arsenic content in the contaminated sites exceeded the risk screening value. The health risks resulting from oral exposure were higher than those of other exposure pathways, and exceeded the acceptable level of human body. Therefore, the contaminated land must be carried out the soil remediation to reduce the risk to the acceptable level of human health before site development.
Design of risk assessment and decision support system for transportation of hazardous chemicals
Authors: Liu Xiangcui , Huang Hua , Shi Hongxing , Zhang Tong , Zhao Jianfeng 
Published: March 2021

Abstract
According to the needs of risk assessment, path planning and emergency rescue of hazardous chemicals transportation, a risk assessment and decision support system of hazardous chemicals transportation was designed, including system structure, implementation process and main functions. The feasibility analysis of key technologies was carried out. This system took Geographic Information System (GIS) as the support platform, and integrated multi-source information such as hazardous chemicals, global positioning system (GPS), geographic environment, Meteorological information, etc. Based on classical pollution diffusion models and relevant domestic and foreign standards, the index system of transportation risk assessment was built. Then the quantitative index of risk assessment and the early warning sign could be given, and the hazard area of the chemical accident was determined. At last, this risk assessment and decision support system provided suggestions on route optimization for hazardous chemicals transport, which could be severed as scientific basis for emergency rescue and command decision.
Heavy metal pollution characteristics and risk assessment of the soil of Lotus Pool influenced by JACW
Authors: Zhao Wenbo , Liu Xiangcui , Qiu Bo , Peng Wenlian , Liu Qinghai 
Published: March 2021

Abstract
During quite a long time, the Japanese Abandoned Chemical Weapons (JACW) has been a constant threat to the public safety and the environment. Because of the environmental corrosion, the chemical agents leaked from the JACW pollute the soil and water severely, especially the heavy metal chemicals. This paper demonstrated the analytical result of heavy metal pollution caused by JACW in the soil of Lotus Pool, where located in the Northeast of China. 10 typical soil samples were taken, in which 7 heavy metal elements were quantified by ICP-MS. By calculating the Nemerow Index and the ecological potential risk index, the pollution degrees and risk assessment of most sites were evaluated.
Advanced synthesis and application of Nano SiC@ β-glucosidase@ Fe3O4 composite
Authors: Deng Xu , Wu Xiuwen , Chen Haonan , Zhang Yuehang 
Published: March 2021

Abstract
An improved method for immobilizing β-glucosidase was studied in present work. The immobilization included the following steps: preparing a nano silicon carbi de carrier, mixing the carrier, β-glucosidase and a cross-linking agent to obtain immob ilized β-glucosidase. Then, the immobilized β-glucosidase was mixed with Fe3O4 nano particles and self-assembled to obtain nano-silicon carbide@β-glucosidase@ Fe3O4 co mposite. This method improved the activity of immobilized β-glucosidase, and solved the technical problems of low β-glucosidase reuse rate and low enzyme activity retenti on rate.
Effect of Drying Temperature on Drying Characteristics and Quality of Honeysuckle
Authors: Zhang Xuebin , Yang Liuqing , Huang Can , Huang Lijun , Qian Yingjing 
Published: March 2021

Abstract
In order to study the effect of drying temperature on the drying characteristics, chlorogenic acid content and product color of honeysuckle, the drying experiment of honeysuckle was carried out by using a self-made Tester of drying characteristics of honeysuckle. The results showed that increasing the drying temperature could shorten the drying time and increase the drying rate, and with the increasing of the drying temperature, the content of chlorogenic acid in honeysuckle increased at first and then decreased, under the condition of other drying parameters fixed, when the radiation temperature is 80°C, the high drying rate and good product quality can be obtained at the same time.
Performance Evaluation and Spatio-temporal heterogeneity analysis of green Technology Innovation in The Yangt River Economic Belt
Authors: Xia QianMing 
Published: March 2021

Abstract
Starting from defining the connotation of green technology innovation performance, the evaluation index of green innovation performance was constructed. The panel data of industrial enterprises in the Yangtze River Economic Belt from 2010 to 2018 were selected. Dea-sbm model and entropy weight method were used to evaluate and diagnose the green technology innovation performance in the Yangtze River Economic Belt. The results show that; Under time heterogeneity; (1) The performance level of green technology innovation in the Yangtze River Economic Belt and the three regions is generally low and shows periodic fluctuations; (2) The green technology innovation performance of downstream regions “Jiangsu, Zhejiang and Shanghai” is at the level of “high green efficiency and high innovation efficiency”, while the middle and upstream regions are always at the level of “low green efficiency and low innovation efficiency”; Under spatial heterogeneity :(1) the green technology innovation performance level of the Yangtze river economic belt is significantly different; > in the downstream region, > in the midstream region, and > in the upstream region; (2) Only nearly 30% of the provinces and cities are in the “high green efficiency and high innovation efficiency”, while the rest of the provinces and cities are in the “low green efficiency and low innovation efficiency”.
The Light Assets Trend of Multinational Corporation OFDI and Its Enlightenment to China
Authors: You Hongbing , Jie Ran 
Published: March 2021

AbstractThe asset-lighting of foreign direct investment is a new phenomenon in the development of multinational corporations. There are four major characteristics: the increase of non-equity investment, the low proportion of fixed capital, the high proportion of investment in the service industry, and the decline of productive investment. Although the current global foreign direct investment There has been a decline for four consecutive years, but due to the impact of COVID-19, the trend of traditional international investment patterns has further emerged. The overseas investment of multinational companies has entered a new stage, which is mainly affected by the strengthening of restrictions on foreign investment by various countries, the digitization of global value chains, and the further decline of manufacturing. Facing the continuous decline in global foreign direct investment and the new trend of asset-light assets of multinational OFDI, China needs to embrace the digital transformation and shift its focus from a traditional investment model to a digital investment model. In the process of foreign investment, we should combine the differentiation of non-equity models to expand overseas markets, build a regional industrial chain, promote regional production specialization and industrial diversification, and use new methods to solve new problems of anti-globalization.
What do enterprises pay attention to in the comprehensive budget management?
Authors: Li Shi 
Published: March 2021

Abstract
The concept of comprehensive budget management means that under the guidance of strategic objectives, enterprises make full and comprehensive forecasts and plans for their future business activities and corresponding financial status. In this process, through real-time monitoring of the execution process, the enterprise will constantly compare and analyze the actual completion situation with the budget target, so as to guide the improvement and adjustment of business activities without delay, in order to help managers to manage the enterprise more effectively and achieve strategic goals to the maximum extent.
The Study on the Strategy of Plain English in Non-literary Translation
Authors: Li Jingwei 
Published: March 2021

Abstract
Non-literary translation involves every area of social life, including politics, economics, law, scientific technology, culture. No matter what position non-literary translation possesses in history, its current absolute advantage is undeniable. For China, as the globalization accelerates and international contact increases, almost all government institutions have set up foreign affairs sections as well as the Foreign Ministry which is the specialized foreign contact institution. Translation is also indispensability for multinational corporations and large business to conduct crossborder production, procurement and marketing. It is also important in international contact of the research institutions and non-government organizations. All the translations these institutions need are non-literary translation.This thesis includes the basic principle of plain English and the method to deal with the sentences and the method to simplify the translations. It explores the method to make the non-literary translation simple and clear.
Numerical simulation study of uniform steam injection method for SAGD horizontal wells
Authors: Zhang Yanyu , Wang Xiangyu , Sun Xiaofei , Gong Hangfei , Zhang Yunshi 
Published: March 2021

Abstract
Steam assisted gravity drainage (SAGD) has a better effect on heavy oil development than other thermal recovery methods. However, during the SAGD production practice, the problem of uneven temperature distribution of long horizontal well sections has appeared. In response to this problem, the reservoir numerical simulation software CMG is used to simulate different steam injection methods for SAGD horizontal well sections. The results show that the conventional steam injection steam cavity only develops at the heel end, the development length is 1/3 of the length of the horizontal section, and the steam suction profile is uneven. The double-pipe steam injection steam cavity develops at the heel and toe ends, and the steam suction profile is uniform. Improved, multi-point steam injection steam chambers are developed along horizontal wells, and the steam suction profile is the most uniform.
Research on Concrete Construction Technology and Innovation Management in Civil Construction
Authors: Wang Miao , Lan Chunhui , Dai Xiaowei 
Published: March 2021

Abstract
With the continuous progress of society, the continuous development of economy and the acceleration of urbanization, the construction industry has also developed vigorously. In the civil building foundation structure, it is inseparable from the use of mass concrete. Only by ensuring that the structural strength, crack resistance and bearing capacity of mass concrete meet the requirements, can we improve the quality of civil engineering buildings. The construction technology of mass concrete structure in civil engineering buildings is analyzed. The society has put forward more and more stringent requirements for the construction technology of civil engineering, and civil engineering construction technology is the core technology in engineering construction. In recent years, although civil engineering construction technology has developed rapidly and achieved certain achievements and results, most of the technologies are imported or referenced by western technologies, which are lack of innovation, and some of them are relatively backward, wasting a lot of manpower, material and financial resources, resulting in waste of resources, unqualified construction quality and other phenomena. Therefore, in order to better apply civil engineering and improve its construction effect and quality, it is necessary to innovate the construction technology. In the actual construction process, it is necessary to innovate the civil engineering construction technology, so that the engineering construction industry can improve productivity and meet the needs of the development of social construction. Promote the good development of society. This paper will discuss and study the civil engineering construction technology, in order to improve the building quality and economic benefits of the construction industry, and bring some enlightenment to the innovation of civil engineering construction technology.
Research on Risk Early Warning for the Cryogenic Freezing Rain and Snow Disaster
Authors: Zhao Lingyun , Li Qing , Liu Changjun , Wang Yu , Wang Xinghan 
Published: March 2021

Abstract
With the impact of global climate change on extreme weather and the rapid expansion of human activity range, the cryogenic freezing rain and snow disaster is becoming more frequent, bringing quite adverse effects on transportation, electric power and other industries, thus seriously affecting social and economic development and people’s daily life. Implementation of risk early warning is one of the most effective means to prevent the cryogenic freezing rain and snow disaster. This paper, taking Guizhou Province as an example, studies the early warning technology and method for the cryogenic freezing rain and snow disaster based on the demand for prevention of the cryogenic freezing rain and snow disaster, and considering meteorological factors, topography, social economy, power transportation and other factors. On this basis, the weight of risk factors is determined by subjective weighting method, the risk early warning model for the cryogenic freezing rain and snow disaster based on AHP is constructed, and the four-level risk early warning indexes are determined. Trial application is realized in Guizhou Province.
Research Progress of Remote Sensing Monitoring of Soil Salinization
Authors: Li Yanan 
Published: March 2021

Abstract
It has become a trend to apply remote sensing technology to the monitoring of soil salinization to obtain soil salinization information. This article reviews the research progress in data selection, spectral feature indexes, and retrieval methods in soil salt monitoring by remote sensing. The study pointed out that with the development of 3S technology, remote sensing technology has broad application prospects in soil salinization monitoring. The combination of remote sensing and electromagnetic induction technology, as well as the collaborative inversion of soil salinity from multi-source remote sensing data, and the construction of regional, national or global scale monitoring models will be the future development research direction of soil salinity monitoring.