bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Empirical Research of Multi-energy Micro grid Operation Efficiency Based on DEA Method
Authors: Meng Li , Yi Lin , Zhangsui Lin , Wei Wu 
Published: August 2019

Abstract
At present, China is striving to build a modern energy system, and the integrated energy system is regarded as the key technology to be promoted. As an important technology for the implementation of the integrated energy system, the operation of multi-energy micro grid should also be studied. Based on the above ideas, this paper studies the efficiency evaluation method of multi-energy micro grid. Firstly, a dynamic and static multi-energy micro grid operation efficiency evaluation index system is constructed. According to the characteristics of the index system, DEA method is used for evaluation. Finally, an example is designed to carry out empirical research.
Research on Smart Grid Planning and Construction Based on GIS Resource Allocation Technology
Authors: Huang Jianmin , He Jian , Yan Kun , Li Weiping , Yang Jie , Xia Tao , Ye Yu , Tu Lei 
Published: August 2019

Abstract
Smart grid planning and construction is a very complex engineering project that requires intelligent technology to protect systems such as grid lines and substations to control grid stability and power quality. The smart grid GIS resource allocation technology has designed a new system architecture for the needs of building smart grids. The article expounds the key technologies and typical applications of smart grid GIS resource allocation technology, and describes its broad application prospects in smart grid. As a public service platform for graphical display applications, GIS platform constructs a spatial geographic information data center, which is intelligent. Applications such as grid integration, data mining, and intensive resource utilization provide a massive data storage, management, and analysis environment. The grid GIS platform provides geospatial information sharing and business application integration for smart grid power generation, transmission, substation, power distribution, power consumption, dispatching, etc., providing planning methods and visual analysis services for the construction of smart grid systems.
A New Power System State Estimation Method Based on External Student zed Residuals
Authors: Huang Sijia , Tan Weipu 
Published: August 2019

Abstract
Power system state estimation is the core of power system online monitoring, analysis and control function, playing an important role in the intelligent analysis and decision-making of power grid dispatching. The estimation results directly affect the correctness and effectiveness of the operation analysis and decision system, how to improve the accuracy of state estimation is an important content of the research. Detection and identification of bad data is one of the important function of state estimation in power system, its purpose is to eliminate a few bad data by the measurement data and improve the reliability of state estimation, which is of great significance to the safe operation of power system. External studentized residuals are used as criterion to detect and identify bad data in power system state estimation, improving the shortcomings of standardized residuals in traditional bad data detection and identification. Then the exponential function weighted least squares method based on external studentized residuals is proposed. The form of the original algorithm is modified using the principle of equivalent weight. Simulation is carried out according to the different situation of bad data to verify its performance. The performance is compared with the traditional robust estimation method and basic weighted least squares method.
Afault Diagnosis Model of Marine Diesel Engine Lubrication System Based on Improvedextreme Learning Machine
Authors: Zhao Gang , Liu Zhikun , Chen Long 
Published: August 2019

Abstract
The lubrication system provides lubrication oil to various moving parts in the marine diesel engine. Once faults occurred in lubrication system, it can result in dramatically damage to the diesel engine. Development of fast and accurate fault diagnosis method of lubrication system is therefore highly urged. In this paper, we present a novel intelligent fault diagnosis methodbased on improved extreme learning machine (ELM). Firstly, we use chaotic mapping to enhance capability of the particle swarm optimization (PSO) algorithm; Then, an enhanced PSO algorithm is used to determine initial input weights (connecting input layer nodes and hidden layer nodes) and thresholds of ELM. Finally, we carry out fault diagnosis experiment on the marine diesel engine lubrication system. The experiments demonstrated that the proposed model could achieve more ideal performance.
Influence of Boiler Thermal Storage Coefficient on Stable Operation of Shipboard Power Station
Authors: Zhu Yongxin , Zhang Xiaofeng , Huang Jing 
Published: August 2019

Abstract
Stable operation of shipboard turbine generator is a key factor affecting the safety of power grid, and heat storage system influences the stability of turbine main pressure significantly. On the basis of boiler-turbine integral model, prohibition effect of thermal storage system on cyclical disturbance is studied. In order to compare the influences of varied heat storage coefficient on turbine unit stable operation after sudden load, PSCAD simulation software is applied. Result of experimental test based on megawatt turbo-generator has confirmed the conclusion, and this paper may provide reference for further research on shipboard power station design and control.
Based on Rough Set and RBF Neural Network Power Grid Fault Diagnosis
Authors: Liu Xiaoqin , Sun Haijun , Wu Mengchan , Yang Jiayao 
Published: August 2019

Abstract
In order to improve the accuracy of troubleshooting results and save diagnostic time, rough set and RBF neural network are used to diagnosed fault of power grid.Rough sample reduction program is used to reduce the fault samples, and the reduction decision table is obtained as the input of the RBF neural network, get the training results.The fault samples without rough set reduction are input into RBF for training, and the two training results are compared. It is found that the samples using the rough set reduction have the same diagnostic ability as the initial decision table.Obviously, the rough decision set initial decision table can greatly reduce the size of the training sample and save diagnosis time.
Effects of Different Metal Ions on the Stability of Anthocyanins as Indicators
Authors: Li Yiyao 
Published: August 2019

Abstract
In this paper, the stability of anthocyanins in morning glory in the presence of different ions was analyzed by spectrophotometry. The anthocyanin extract was obtained by heating and reflux. Then the maximum absorption wavelength of anthocyanin was obtained by specific characteristic absorbance of anthocyanin, and the concentration of anthocyanin was calculated. Six different metal ions were added to the anthocyanin solution to determine the influence of the stability of anthocyanin by measuring the absorbance value. Through the analysis, we obtained calcium ions which can promote the stability of anthocyanins. Finally, we find the best concentration ratio of calcium ion and anthocyanin. Through the study, we found that when the concentration of anthocyanin and calcium ion is 1:7, the best color retention effect is achieved.
The study on fuel-cell performance by using alkylimidazole ionic liquid as electrolytes for fuel cell
Authors: Xu Jiajia , Feng Zhi , Zhang Jing , Wang Yuanyang 
Published: August 2019

Abstract
Ionic liquids are widely used in the field of electrochemistry because of its low melting point, wide electrochemical window and outstanding electrical conductivity. Ionic liquids are used as fuel-cell electrolytes in order to optimize the overall performance of fuel cells. Four ionic liquids have been investigated, such as 1-methylimidazolium hydrogensulfate [Hmim]HSO4, 1-n-butyl-3-methylimidazolium bromide [Bmim]Br, 1-n-butyl-3-methylimidazolium trifluoroacetate [Bmim]CF3COO, 1-n-butyl-3-methylimidazolium hydrogensulfate [Bmim] HSO4. At the same time, fuel cell shells made of PTFE and stainless steel were designed and processed. The anode and cathode electrode materials were prepared; then the above ionic liquids were used as the fuel-cell electrolyte in turn, The performance of the fuel cell was measured by voltammetry using hydrogen as a fuel and air as an oxygen source.
Comparison of two microbial oil extraction technologies
Authors: Zheng Chaocheng 
Published: August 2019

Abstract
Microbial oil production has many advantages such as rapid proliferation of microbial cells and short production cycle. The raw materials needed for growth are abundant and inexpensive such as starch, sugar, especially the waste which can be utilized in food or paper industry. 170 oil-producing strains were screened by Sudan black staining observation using fat grains as screening index, among which, 6 high lipid yield yeast strains were identified by residual sugar as indirect index. By comparing the oil-producing ability of this strain, it was determined that the first strain was a good strain for oil production by fermentation. The biomass, oil content and oil yield of the strain were 11.58 g/L, 36.68%, 4.25 g/L, respectively. Through analysis on 26S rDNA sequence and observation on morphological characteristics, culture characteristics and physiological and biochemical characteristics, this strain belonged to Cryptococcus spp.
Analysis of main nutrients among different edible parts of ‘Nainaiqingcai’ mustard under the alpine cold climate
Authors: Ma Jie , Qu Wen , Wu Rui , Chen Chunyan , Ma Wei , He Yuankuan , Sun Bo , Zhou Ping 
Published: August 2019

Abstract
Bijie City, Guizhou Province belongs to the alpine cold climate. In order to understand the nutritional values of ‘Nainaiqingcai’ mustard, the contents of main nutrients among different edible parts (leaves, petioles, and bolting stem) in ‘Nainaiqingcai’ mustard under the alpine cold climate were investigated. The results showed that significant differences were found among different edible parts. The levels of chlorophyll, carotenoids, ascorbic acid, soluble soilds, and soluble proteins were followed as the trends of leaves > petioles > bolting stem.Whereas the sugar components showed different distributions, and the lowest content of sugar was detected in leaves. Moreover, significant negatively correlation were found between sugar and the other nutrients. Most of the extremely significant positive correlations were found between sugar components, and the correlation coefficient is high (except for the correlation between fructose and sucrose). The highest correlation coefficient was between chlorophyll and carotenoids, up to 1.000. In summary, the information in this study provides a theoretical reference for the study of nutritional quality of ‘Nainaiqingcai’ mustard under the alpine cold climate.
Research on Preparation of Diatomite and Graphene Oxide Materials
Authors: Song Weihua , Xu Haoran , Sun Ruokai 
Published: August 2019

Abstract
The sol-gel method and negative pressure and load method, diatomite as carrier, are used to prepare diatomite, nano-zinc oxide and graphene oxide composite materials, the sample was characterized and analyzed, the structure and morphology of diatomite was and graphene oxide materials were studied, and the influence graphene oxide on photocatalytic performance was analyzed. The results show that the loading of diatomite on nano-zinc oxide is better than the ordinary load method.
Biohydrogen as a renewable energy and its potential production from the conversion of palm oil mill effluent by anaerobic processes
Authors: Gumilar A , Syafila M , Handajani M , Angga M I 
Published: August 2019

Abstract
Biohydrogen is one of the promising alternatives to be used as a source of energy in the future. Several studies related to the production of biohydrogen through the process of conversion of organic wastewater by anaerobic process have been done with different reactor conditions. However, biohydrogen is not the main products produced in the process, even biohydrogen is produced in relatively few amounts compared to other acidogenesis products such as volatile acids. The aims of the study are to determine the optimum conditions of biohydrogen production through the control of pH are 5.5; 6.5; 7.5 and 8.5. This factor affects to the metabolism pathway. The study was conducted using the wastewater from the palm oil mill effluent as a substrate, pure culture and mixed culture bacteria as a biomass and performed in the laboratory using an anaerobic batch reactor which will be operated for 72 hours. Sampling was done every 6 hours and then analysed the product of acidogenesis produced. The results show that the optimum conditions for biohydrogen production occurs in the reactor with the pH 5.5-6.5 are 15.27% ± 0.404% to 15.40% ± 0.265%.
Studies breeding places of Aedes aegypti and Aedes albopictus in dengue endemic Padang area
Authors: Onasis Aidil , Barlian Eri , Razak Abdul 
Published: August 2019

Abstract
Suspect vector of Dengue Haemorrhagic Fever (DHF) and Chickungunya transmitted by Aedes aegypti and Aedes albopictus in container as potential breeding places. This study used a descriptive design, data collection in Kuranji, Nanggalo and Padang Timur and Lubuk Begalung district for 5 months in Padang with populations in house as many as 400 larvae index for density analysis to interpretation. The results container at risk of becoming breeding places of Aedes aegypti in Padang Timur districts 14.25%, and Aedes albopictus in Kuranji 20.75%. 3 classification area analysis are Aedes aegypti and Aedes albopictus in the container in the form of supervision that more routine in Nanggalo compared Kuranji and Lubuk Begalung well as in Padang Timur as well as control by getting rid of that is rare in Kuranji and Padang Timur while in Nanggalo and Lubuk Begalung category often get rid of the landfill. Updating data analysis results in the form of survey results, mosquito density monitoring strategy regularly and periodically by the community with assistance by health workers as well as the risk of transmission as well as the anticipation of Extraordinary Events and prevention of dengue outbreaks.
Decreasing level of heavy metals Fe and Mn use the wetland method at coal open mining PT Bukit Asam South Sumatra Province
Authors: Prabowo Heri , Amran Ali , Arbain Ardinis 
Published: August 2019

Abstract
PT. Bukit Asam, Tbk is a coal mining company that directly produces waste water. For this reason, it is necessary to treat wastewater to neutralize substances that pollute the wastewater, one of the methods used is constructed wetland. The method used is descriptive quantitative method. Where this study will produce the influence of the constructed wetland method in neutralizing waste water from the coal mining process at PT. Bukit Asam, Tbk. Based on the results of the study it can be seen that the waste treatment caused by the Constructed Wetland coal mining process can increase the Ph value from 3 samples averaging 2.6 mg / l, reducing the Fe metal content from 3 samples averaging 9.98 mg / l, and lowering the metal content of Mn from 3 samples averaging 0.75 mg / l and decreasing the level of Total Suspended Solid from 3 samples averaging 486 mg / l. The constructed wetland method that has been implemented at PT. BA has succeeded in neutralizing Fe and Mn metals and TSS according to the standard quality values that meet the standards set by the government.
Pukung pahewan: The effort of natural resources conservation in Dayak Ngaju community
Authors: Bulkani  , Ilham  , Darlan Saiffullah 
Published: August 2019

Abstract
In this article, I will discuss about Pukung Pahewan. It is a name of the prohibition area with certain terms and extents. Pukung Pahewan comes from the Ngaju Dayak language. Pukung means island or region, while pahewan means prohibition. The determination of Pukung Pahewan refers to certain objects such as trees, stones, and other objects that are sacred to a particular region, which should not be disturbed or destroyed, including the surrounding area. Moreover, Pukung Pahewan is determined by customary agreement with certain characteristics, i.e. the Diwung/Handiwung tree, Lunuk/Banyan tree or other large trees, the presence of sacred, and sometimes required by the Bird’s Nest/Antang. The concept of Pukung Pahewan by the Dayak Ngaju community in many areas of Central Kalimantan proves to eliminate the notion that a shifting cultivation system can damage natural resources.
Effectiveness of the Indonesian literacy school program in improving the quality of basic education for marginal communities in the Indonesian border area
Authors: Defit Sarjon , Zefriyenni  , Novia Dewi Yosa , Yarman  
Published: August 2019

Abstract
This study aims to compile basic data, develop and implement the Indonesian School of Literacy program in Improving the Quality of Basic Education for Marginal Communities. The program aims to establish and improve school performance through a mentoring process for school principals and teachers. In addition, this program also involves parents in the learning process of students while at home. Parents are involved through parenting training held at school. The Indonesian Literacy School is a program that seeks to realize a community-based school model that concentrates on improving the quality of instructional systems and the development of school culture, with a distinctive literacy culture. This program focuses on improving school governance by referring to indicators of improving school performance based on the Uswah Method Tools. The stages in the development of this program are: program planning, program implementation, and the end of the program. This research was conducted in 2018 to make program design and development of program tools. After that, an initial assessment of the area and school was carried out for program intervention. Program interventions are carried out in the Indonesian verandah, namely: Kepulaun Meranti (Riau Province) and Nunukan (North Kalimantan). The results showed that there was an improvement in school governance through improving the quality of instructional systems and the development of school culture, with a distinctive literacy culture.
Local wisdom of Aek Latong society for mitigation and adaptation of soil movement disaster in North Sumatra, Indonesia
Authors: Haris Zainal A , Irianto Agus , Heldi  , Hermon Dedi , Yulnafatmawita  
Published: August 2019

Abstract
Lately, due to advance technology, some of natural disasters could be forecasted, therefore the people can decide where to go to avoid the disasters. However, people in Aek Latong North Sumatra did different thing. They just stayed in their villages or regions without moving to anticipate the impact that might happen. This research was aimed to identify the local wisdom of Aek Latong society in facing, mitigating, and adapting the disaster, especially soil movement disaster in their region. This research was conducted through 3 steps (preparation, main survey, and data analyses). At the first step (preparation) was conducted to get secondary data about Aek Latong, such as geographical position, natural condition, type of natural disaster, society and the tradition. The second step (main survey) was conducted by directly interviewing the people in Aek Latong how they face, mitigate, and adapt the disaster happening. The third step was data analyses. Based on data resulted, Aek Latong society has a strong belief inherited from their ancients that everything come from the almighty God, therefore they have to face it. They believe that God has specific purposes to do so for them, they do not have to easily give up. Then, they also mitigate and adapt the disaster by earlier checking the signs of disaster and following the advice given, besides they did not construct building and do farming activities in sloping area and in the river bank. It could be concluded that Aek Latong society was able to face, mitigate, and adapt to the natural disaster in their region by their belief, knowledge, as well as by following the advice given.
The effect of vocational learning strategy and knowledge of sustainable development in increasing traditional cattlemen’s skill in making bio-digester
Authors: Nadiroh  , Fadli Hazhar Fachrial Nur , Utomo Erry 
Published: August 2019

Abstract
The objective of this research is to find out the effect of vocational learning strategy and knowledge about sustainable development to increase traditional cattlemen skills in making Bio-digester. The research design used experiment of 2 x 2 factorial design. The sample were 80 traditional cattlemen at District Sukawangi who were divided in two groups. The result showed as follows 1) There is significant difference on the cattlemen group who was taught with vocational learning strategy between school based and work place based; 2) There were interactions found between two factors there are vocational learning strategy and knowledge about sustainable development; 3) The cattlemen group who have high knowledge about sustainable development and taught with work place-based strategy, the skill in making Biodigester was higher than the group who taught with school-based strategy; 4) The cattlemen group who had low knowledge about sustainable development and taught with work place-based strategy, the skill in making Bio-digester was higher than the group who taught using school-based strategy. Vocational learning strategy using work place based can be more effective to increase the level skill of cattlemen in making Bio-digester by considering their knowledge about sustainable development.
Sand type characteristics analysis and mapping in Bengkulu
Authors: Supriani Fepy , Islam Mukhlis , Afrizal Yuzuar 
Published: August 2019

Abstract
Sand can be classified based on the origin of the quarry, namely sea sand, river sand and mountain sand. Sand provides an important role as filler material in building cementation materials such as in mortar and concrete. The characteristics of the sand determine the strength of the building. Characteristics can be in the form of grain size (gradation), sludge/clay content and specific gravity. This study aims to look at the characteristics of sand from different types of sand while looking at the mapping of sand zones based on SKSNI 03 2834 2000. Sand is taken directly from quarry, in five city districts in Bengkulu Province which consist of sea sand, river sand and mountain sand. Determination of sand gradation is based on SNI 03-1975-1990 sieve analysis test. Examination of sludge/clay content and specific gravity based on SNI 6821-2002 and SNI 03-4804-1998 standards. The conclusion obtained is that sand will have different characteristics based on quarries. 81.25% sea sand tends to have uniform granules, with smooth and very fine characteristics and does not enter any zone. River sand has a good gradation and categorized in zones characteristic of smooth, slightly rough and rough. Mountain sand is categorized as fine sand with good gradation. The sludge content of sand from each type of origin of the sand quarry shows that the river sand with a calm flow has a high level of clay content. Clay content levels that are very high on mountain sand are probably ash that was produced by volcanic activity of the mountain. The specific gravity of each type of sand varies, not depending from the origin of the sand.