bluuebunny/crossref_metadata_2025_split huggingface dataset:
Soil Compaction Study Due to 4 Wheel Tractor Track in PTPN II Kulmpang Sugar Cane Plantation
Authors: Rizaldi T , Susanto E , Napitupulu R P 
Published: June 2020

Abstract
Soil compaction can occur due to repeated tractor trajectories in the tillage process. Changes in soil physical and mechanical properties that occur can be seen with changes in soil bulk density, soil porosity, ground pressure and soil penetration resistance. Soil compaction can cause disruption of plant root growth that will reduce crop production. The purpose of this study was to evaluate changes in soil physical and mechanical properties due to soil compaction caused by repeated tractor trajectories. The study was carried out at 20.05% moisture content, bulk density 1.06 gr / cm3 porosity 53.9% and an average penetration resistance of 1.32 kgf/cm2 (0.13 MPa) with an average tractor ground pressure value of 0.88 kg/cm2 crossing the ground as much as 1-8 times the track. The results showed that the number of tractor trajectories affected the value of bulk density, soil porosity and soil penetration resistance. The increasing number of trajectories, causing an increase in the level of soil density which can be seen by increasing the bulk density value by 1.31gr / cm3, decreasing porosity value by 26.63% while the average penetration resistance increases by 6.88 kgf/cm2 (0.67 MPa).
Natural durability of raru wood (Cotylelobium melanoxylon) against subterranean termite attack
Authors: Iswanto A H , Susilowati A , Putra A R , Nopriandi D , Windra E 
Published: June 2020

Abstract

Cotylelobium melanoxylon or locally known as raru is one of the endemic species in North Sumatra. The species was disjunct distributed in Central Tapanuli Regency, North Sumatra. The purpose of this study was to analyze the wood durability of C. melanoxylon against termites’ attack by using the graveyard test method. Wood samples were made measuring 3 cm by 3 cm by 20 cm. The test sample was dried using an oven at 103 ± 2°C for 24 hours before and after the test. The graveyard test was carried out for 3 months (90 days). The test parameter observed was a weight loss of the sample. The results showed that C. melanoxylon wood was classified into durable class II and included in a resistant category with weight loss values ranging from 0.89 to 2.79% for axial direction and 1.81 to 2.22% for lateral direction.
Case study of mangrove ecosystem services for tiger shrimp (Penaeus monodon) in the practical silvofishery
Authors: Basyuni M , Indrawan R , Putri L A P , Yusraini E , Lesmana I 
Published: June 2020

Abstract
Mangroves are a particular form of brackish plants, estuaries, and deltas which distributed in tropical and sub-tropical areas. Mangrove has various functions including the ecological functions of mangrove forests such as nesting places, spawning, and enlargement of various types of fish, shrimp, crabs, birds, and other fauna. This study was aimed to determine the mangrove ecosystems service to produce tiger shrimp (Penaeus monodon) in silvofishery ponds that are consisting domination of trees and saplings. Survival of shrimp at trees domination was 0.21% with a total of 125 individual, yielded as much as 1.2 kg. Shrimp survival at saplings domination was 0.31% with a total of 186 individuals, yielded of 1.8 kg. To further increase production results in silvofishery ponds, it is necessary to regulate the techniques of preventing predatory animals that enter the pond when the floodgates are opened, namely by placing a smooth net and repairing the fort.
Effect of concentration starter and fermentation time on the quality of yoghurt drink from buffalo milk
Authors: Sinamo K N , Hasan F , Hasanah U 
Published: June 2020

Abstract
Generally yogurt drinks are made from cow’s milk, whereas buffalo milk has a higher nutrition value than cow’s milk. The objective of this study was to produce yoghurt drinks from buffalo milk and determine proximate composition and sensory quality of the product based on starter concentration and fermentation time. The experiment was carried out using a completely randomized design of factorial patterns consisting two factors, i.e. starter concentration (3, 5 and 10%) and fermentation time (8 and 12 hours). The results of proximate analysis obtained showed starter concentration had significant effect on moisture, fat, protein and carbohydrate contents. While fermentation time had significant effect on fat and protein contents. The sensory evaluation result showed significant differences among the yoghurt drink samples. Sample F (10% starter concentration and 12 hours fermentation time) had the highest scoore in sensory atributes.
Research serendipity: A challenge for changing
Authors: Nasution Mahyuddin K M 
Published: June 2020

Abstract
Research is a part of every activity of human life, and the tri dharma of higher education only reaffirms that task for each academician. Research is not just a coincidence like that, but it is a possibility and opportunity, or not incidentally, for life itself. Because, however, every interest will urge to become the human needs, research becomes a solution so as not to contribute negatively to social and personal well-being. This is stated as research serendipity, which ontologically states that a research will supported by another research and will also give birth to another research.
Research Progress of Humic Acid Fertilizer on the Soil
Authors: Li Yanan 
Published: June 2020

Abstract
Humic acid fertilizers are currently widely used in agricultural production, soil remediation and environmental protection. The application of humic acid fertilizer in the soil can not only optimize the soil structure and increase the utilization rate of fertilizers, but also promote the growth of crops, thereby achieving the effect of increasing yield and income. In the repair of contaminated soil, humic acid fertilizers can fix heavy metals and degrade organic pollutants. Based on this, in order to promote the efficient application of humic acid fertilizers in soil, the application of humic acid fertilizers in soil improvement and remediation of contaminated soil was explored.
A study of relationship between socio-economic factors and R&D funds based on spatial analysis
Authors: Xue Dingyuan 
Published: June 2020

Abstract
In this essay, we are going to study the relationship between socio-economic factors and R&D funds based on Spatial Autoregression. To start with, we introduce Moran’s I to describe a relationship between a variable and its spatial lag; After that, Principle Component Analysis is manipulated to operate a dimension reduction by orthogonal transformation; Ultimately, we use the Spatial Autoregression model to reflect the relationship between a province’s R&D funds and these five components as well as spatial lag of this province. According to the coefficients of the five principles, we find out that education and development of high-tech companies have positive impact on R&D funds while the population structure and employment structure also significantly influence the amount of funds.
Analysis of the Application of Gas Chromatographic Analysis Technology
Authors: Chen Xiaodan , Wang Liang 
Published: June 2020

Abstract
With the continuous development of the society and the continuous improvement of the level of scientific research, the research accuracy and precision requirements are higher and higher, followed by more accurate instrumental analysis methods. Gas chromatography has been widely used in many fields for its advantages of high separation efficiency, high sensitivity, fast analysis speed and wide application range. In this paper, the application of gas chromatography in industrial research, food inspection, environmental protection and environmental monitoring is described.
Study on automatic recognition method of Continental Shale Sandy laminae based on electrical imaging image
Authors: Zhang Guotong , Cheng Daojie , Hou Yanhong , Li Zhenlin , Zhong Lulu 
Published: June 2020

Abstract
Aimed at the characteristics of complex continental shale lithology, the development of sandy striae, and the difficulty of artificial recognition. In this paper, the sandy texture of the Chang 7 shale gas reservoir in the Mesozoic of the Yanchang Oilfield is taken as the research object. First, the core fine observation description and X-ray diffraction analysis of the whole rock minerals were carried out to determine the development characteristics of sandy striae of continental shale. Then the research focuses on methods such as full-wellbore wall restoration, automatic identification of the striae boundary, and construction of the striae development index model for the electric imaging log images. Finally, comprehensive evaluation is made on the sandy stratum of the extended continental shale gas reservoir. The results show that the mineral types of Changqi shale in the study area are mainly clay minerals, quartz and feldspar, and the average thickness of sandy lamina is 1.93cm, with a layer density of 26 layers/m. After verification and analysis with core description, the method based on image recognition can accurately identify the striae layer, which lays a foundation for shale gas layer selection in the study area.
An Economic Analysis of the rise of Folk basic Education in China and its Social effects
Authors: Wang Zhe 
Published: June 2020

Abstract
Folk basic education has made great contributions to Chinese education and has become an important part of the whole field of basic education, so its social contribution should be evaluated objectively and impartially. The rise of folk basic education is the inevitable result of the optimal allocation of resources in the education market, which makes the basic education market realize Pareto improvement, and the differential needs of some parents for childrenundefineds education and the helpless choice of their children working in cities are the important reasons for the rise and development of folk basic education. The folk basic education has had the obvious “spillover effect” to the society, and has the “supplementary effect” to the public education insufficient investment. Private basic education has become a breakthrough in supply-side structural reform in the field of basic education. This paper makes a concrete analysis and objective evaluation of the causes and social effects of the rise of folk basic education by using the economic model, and on this basis, probes into the concrete strategies for promoting the healthy development of folk basic education.
Impact of Water-Saving Renovation Projects on the Environment
Authors: He Jing 
Published: June 2020

Abstract
Water is an important raw material for industrial and agricultural production, and it is also a precious natural resource for human survival. Without water, there is no life, there is no good natural environment, and social and economic sustainable development cannot be achieved. The world today has entered an era of water stress and a global water crisis has emerged. Compared with other countries in the world, China’s water resources and water environment are more worrying. First, China’s total water resources are seriously in short supply. China’s per capita water volume in 1998 was 2251 cubic meters, which was only one quarter of the world’s per capita level. It is predicted that when China’s population increases to 1.6 billion in 2030, the per capita water resources will drop to 1760 cubic meters. Second, the spatial and temporal distribution of water resources in China is also very uneven. The absolute amount of water resources is less in the west and more in the east, while the per capita share is less in the east and in the west, and is distributed in two reverse degrees. Third, China’s water environment is also deteriorating, resulting in a decrease in the availability of water resources. With economic development, population growth, and urbanization, China’s demand for water resources will increase further in the future. How to resolve the contradiction between insufficient water supply and increasing demand has become a major issue to be studied and resolved urgently.
Decomposition Analysis of CO2 Emission in China’s Electric Power Industry
Authors: Ding Zequn , Li Kexian , Zhu Hongqing , Zhou Weiye , Liu Junliang , Bai Zhigang 
Published: June 2020

Abstract
The electric power industry is a largest contributor to fossil energy consumption and CO2 emissions in China. The LMDI-I method was selected and used to conduct the study in this paper. Decomposition analysis shows that the economic scale is the most important factor that affecting the electric power industrial CO2 emission among the seven factors studied in this paper, the effects of the electricity consumption scale and energy structural factors also plays a significant role in increasing CO2 emission. The generating efficiency factor and the ratio consumption to generation factor have played a key role in reducing CO2 emissions. Finally, based on the results the constructive suggestions to reduce the CO2 emissions has been put forward.
Effects of Hyperaccumulator Sedum Plumbizincicola Intercropped With Maize and Castor on Soil Microbes and Enzyme Activities under Field Conditions
Authors: Li Mingrui , Guo Jianfang , Jiang Ming , Zhan Fangdong , He Yongmei , Li Yuan , Zu Yanqun , Qin Li 
Published: June 2020

Abstract
The effects of Sedum plumbizincicola intercropped with maize and castor on soil microbial populations and enzyme activities were investigated under field conditions. The quantity of bacteria found under maize/Sedum plumbizincicola intercrops were significantly reduced by 68.8% when the soil under Sedum plumbizincicola was assessed. The amount of fungi and actinomyces significantly increased by 70.5% and 620.6%, respectively, for Sedum plumbizincicola, while they decreased by 23.2% and 10.7% for maize as compared to counts found in monoculture models. The urease activities of intercropped maize and Sedum plumbizincicola were significantly increased by 63.0% for Sedum plumbizincicola, but no significant change for other intercrop combinations was observed as compared to the enzyme activity of the monoculture. The activities of catalase under maize/Sedum plumbizincicola intercropping were significantly promoted by 16.7% and 28.8%, respectively, but no significant changes were seen under castor/Sedum plumbizincicola intercropping. The activities of invertase on sucrose were enhanced significantly with all intercropping patterns as compared to that observed in the monoculture models. Together, this demonstrates that intercropping patterns are important for improving microbial count and enzyme activity in soil.
Research on Situation System Based on Big Data Image -- Taking Road Traffic as an Example
Authors: Zhu Yinghao , Zhao Jianxin , Li Xiaohang , Yu Ning , Liu Yuqing 
Published: June 2020

Abstract
In this paper, based on convolution neural network, object class awareness is carried out, Relu is selected as the activation function, which speeds up the training speed and overcomes the problem of gradient disappearance; using situation awareness technology and database technology, all object classes in the image scene are identified, and its location is specified. This paper takes the road traffic situation awareness system as the research object, and analyzes the information collection, processing and analysis process of the road traffic situation awareness system. CNN, R-CNN, Fast R-CNN and Faster R-CNN are used for vehicle classification and location recognition in road image big data.
Research on anaerobic treatment of food processing waste-water based on watershed water protection
Authors: Wang Yibo , Chen Xin , Huang Jieyun , Chen Luoru , Liu Yingxin , Huang Jinming , Wu Tongtong , Li Yuying 
Published: June 2020

Abstract
Sweetmeat is one of the non-staple foods and a kind of classic non-staple food. It is of great practical significance to study the treatment of candied waste-water from factories along the river basin. Take the digestible sludge from the pipe of the dewatering workshop of the sewage treatment plant and anaerobic treat the high-concentration candie waste-water in the plastic bucket. The results showed that the suspended matter concentration of waste-water decreased to 8.04 g/L and the removal rate reached 22.1% after 60 h treatment. The absorbance of waste-water decreased from 0.835 to 0.598, the color removal rate reached 32.4%, and the chroma of waste-water decreased from 500 times to 80 times, reaching the “secondary standard” of “comprehensive sewage discharge standard (GB8978-1996)”.
Analysis on the Characteristics of Temperature Change in Zhengzhou from 1990 to 2017
Authors: Yang Liangyan 
Published: June 2020

Abstract
In order to find out the changing trend of temperature and extreme weather in Zhengzhou under the background of rising global temperature. This study analyzes the changing trend of annual mean temperature and seasonal average temperature in Zhengzhou from 1990 to 2017 based on meteorological data. The extreme temperature index for 28 years was extracted. The results show that from 1990 to 2017, the air temperature in Zhengzhou shows a significant upward trend, and its rising rate is higher than that of the global warming rate. There are differences in the four seasons in Zhengzhou, with the largest change rate in spring, followed by summer and autumn, and the weakest warming trend in winter. The extreme temperature index in Zhengzhou has certain regularity, the extreme index FD0 decreases significantly, the change of ID0 is not obvious, and SU25, TR20 and HTD35 increase significantly. Except for the change of IDO is not obvious, other indexes can better reflect the warming trend of temperature in Zhengzhou, indicating that the extreme temperature index has an obvious response to the change of temperature and can be used as an index to study the change of urban temperature.
Optimization of Building Drainage System Based on Blocking the Transmission Route of Pathogenic Bacteria
Authors: Zhang Hongru , Lu Yifeng , Ge Zhiwei , Chen Yanchi 
Published: June 2020

Abstract
Some pathogens exist in the way of fecal oral transmission, while the risk of building drainage pipeline is easy to be ignored and hard to be eliminated. It is worth to reflect on the SARS incident in Taoda garden in Hong Kong, in case of group infection. At the same time, the transmission chain of pathogenic bacteria is analyzed, and according to the transmission chain, the idea of system optimization or solving the transmission of pathogenic bacteria is put forward.
A Migration Model to Predict the Distribution of Scottish Herring and Mackerel
Authors: Xu Minghao , Jiang Dongyu , Zhang Zhe 
Published: June 2020

Abstract
To identify climate-related habitat changes and variations in abundance and distribution of herring and mackerel around the waters of Scotland, a new habitat suitability index (HSI) model and Markov Model were developed in this study. The study only used the distribution of annual catch and fishing efforts. The suitability index (SI) was constructed by newly defined estimate-catch-per-unit-effort (ECPUE). Through the voting method and data of sea surface temperature (SST), the habitat suitability index model (HSI) was established. Based on the HSI, Markov Model was established to predict the movement of shoals. Using the predicted data of future SST, this model can simulate the changes of fish distribution.
Environmental Efficiency and Random Convergence Analysis of Large-scale Pig Breeding in China *
Authors: Zhang Ruixin , Fu Xinhong , Li Jianqiang 
Published: June 2020

Abstract
As the scale of live pigs in China continues to accelerate, the agricultural non-point source pollution caused by it is becoming increasingly serious. In this paper, the SBM-Undesirable model was used to measure the environmental efficiency of pig breeding in different scales in year 2008-2017, and the efficiency was analyzed by random convergence. Results show: from the overall average, the environmental efficiency of pig breeding in China is medium-scale, large-scale and small-scale in order, and the three-scale pig breeding has random convergence characteristics. From the perspective of different regions, with the environmental efficiency as a judge, the three scales of potential development zones perform well, and only the small-scale pig breeding shows random convergence; large-scale mode in key development zones performs well with no signs of random convergence, has poor stability, while the other two remain stable at a low level; small and medium-scale modes perform better in moderate development zones, all showing no features of random convergence; the three scales in constrained development zones don’t perform well, and all remain stable at a lower level. Based on the above results, this paper put forward differentiated policies for different scales and regions to promote healthy and green development of pig scale breeding.
Buffer Overflow Vulnerability Detection Based on Unsafe Function Invocation
Authors: Zhao Xianda , Huang Shuguang , Pan Zulie , Hui Huang 
Published: June 2020

Abstract
Buffer overflow vulnerabilities are widespread in software programs and pose a serious security threat. In order to effectively mitigate buffer vulnerabilities, we proposed a buffer overflow vulnerability detection technique based on unsafe function invocation. By extracting the typical characteristics of the insecure function call operation, a vulnerability code characteristic model is constructed, and the model is used as a guide to use the data flow analysis method for vulnerability detection. Experimental results show that our method can effectively detect buffer overflow problems caused by unsafe function invocation in programs.
An Improved Deep Belief Network for Chinese Emergency Recognition
Authors: Yin Haoran , Cao Jinxuan , Cao Luzhe , Wang Guodong 
Published: June 2020

Abstract
Aiming at the defects that the RBM module in DBN can only re-represent information but cannot extract information features, and can only handle one-dimensional data, the DBN network is improved, and a Conv-DBN model is proposed to recognize emergencies. First, the text corpus is preprocessed, and the word vector matrix generated by Word2Vec is used as input, and then the word vector features are extracted through the visible layer integrated into the convolution operation. Word vector features are used as the input of the next layer. Finally, every layers are fine-tuned through back-propagation at the top layer. The softmax function is used to activate, and the recognition result is output. Simulation results show that the method proposed in this paper has improved accuracy and recall, and F value is better than other methods.
Design and Research of Underwater Spherical Robot
Authors: Zhai Yuyi , Ding Zihang , Liu Yunjia , Jin Shaohua 
Published: June 2020

Abstract
Underwater detection has always been a hot area of technical research. The completely symmetrical structure of the spherical robot gives it a unique advantage in underwater exploration. This paper designs a new spherical robot that can move freely under water. It contains two propellers on the outside, which are driven by the motor to achieve forward, backward, and steering. Furthermore, the robot can float and sink by changing the volume of the ball by means of buoyancy. Finally, static and dynamic simulations will be performed to demonstrate the feasibility of the design.