bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biodiversity constraint indicator establishment and its optimization for urban growth: framework and application
Authors: Sun Chuanzhun , Xu Shan , Qi Wei , Chen Cheng , Deng Yu , Pei Nancai , König Hannes J 
Published: November 2019

Abstract
Urbanization causes tremendous pressure on biodiversity and ecosystems at the global scale. China is among the countries undergoing the fastest urban expansion. For a long time, ecological environment protection has not been a priority in China’s urban planning process. Current urban growth optimization research has some limitations regarding the selection of more scientific ecological constraint indicators and the interaction between urban expansion and ecological factors. This paper at first aimed to establish a reasonable comprehensive biodiversity constraint indicator based on the indicators of net primary productivity, habitat connectivity and habitat quality, and then conducted a case study in Beijing and compared biodiversity loss and urban growth patterns under different developing situations. The integrated valuation of ecosystem services and trade-offs model and GIS-related methods were used to obtain biodiversity and ecological spatial distribution layers. Then an ecological priority-oriented urban growth simulation method was proposed to search for minimum biodiversity loss. The results showed that the important biodiversity security areas were mostly distributed in the western part of the study area and that the ecological degradation in 2000 had a radial pattern and was well in line with the urban construction and ring road distribution patterns. Meanwhile, biodiversity loss with the biodiversity constraint was much less than actual urban growth in 2000–2010. Under the guidance of ecological optimization, urban growth in the research results reflects decentralized and multi-center spatial development characteristics. This type of urban growth not only provides a new model for breaking the inertia of urban sprawl but also proposes ‘biodiversity security’ as an applicable regulatory tool for urban planning and space governance reforming.
Treatment of High Concentration Organic Wastewater by Multi-step Flocculation and a dsorption
Authors: Xiyang Yu , Guizhou Gu , Lidong Xu , Zheng Li , Linshi Jiang 
Published: November 2019

Abstract
Acrylic fiber wastewater from acrylic plant was used as feedstock, the feasibility of treatment high concentration organic wastewater by combination method of flocculation and adsorption was investigated through single factor experiment and orthogonal experiment. Experiment results showed that positive ion polyacrylamide presented the best flocculation effect in the experiment of treatment acrylic fiber wastewater by single flocculant. The flocculating effect was improved remarkably by multi-step flocculation and adsorption, and the removal effect of turbidity and COD was increased. The optimum combination order was positive ion polyacrylamide, the polymerization aluminum chloride and the shell polyose, and the removal efficiency of turbidity and COD can reach above 90% and 70.5% after treatment acrylic fiber wastewater by the combination of flocculation and adsorption, respectively.
Safety Evaluation of Highway Transportation Environment in Water Sensitive Sections: Case Study of Boshen Highway in China
Authors: Liu Shu , Qin Xiaochun , Qi Xingxing 
Published: November 2019

Abstract
China was striving to build “Smooth, Efficient, Safe, Green” comprehensive transportation system, which demanded highways to meet traffic safety functional requirements and regional ecological environmental safety requirements as well. A lot of researches in highway traffic safety and highway ecological environment evaluation at home and aboard had been made and achieved considerable results. However, there were few researches to combine highway traffic safety and highway ecological environment safety together. In this paper, the concept of highway transportation environment safety was proposed firstly based on the combination study of highway traffic safety and highway ecological environmental safety. The prediction model of highway traffic accidents was built using horizontal and vertical alignment, traffic volume, traffic composition and other data, and the evaluation system of water environment along highway was also established include the main indicators of water environment function, water quality, service population and water supply area. The method of safety evaluation of highway transportation environment in water sensitive sections was developed through the prediction of highway traffic safety and the sensitivity evaluation of water environment along highway. Though the case study of Boshen highway in Guangdong Province in China, the evaluation method of highway transportation environment safety was validated and it was proved the protective countermeasures can improve the efficiency of highway safety facilities, which would have an important theoretical and practical significance in building the safe highway transport environment system and the promotion of highway ecological environmental protection and sustainable development in China.
Study on the Properties of Gypsum-based Self-leveling Mortar using Molybdenum Tailings
Authors: Zhang Jixiu , Zhang Ye , Liu Jikang , Miao Yuanchao 
Published: November 2019

Abstract
In this paper, the gypsum-based self-leveling mortar is prepared using FGD gypsum-based α-hemihydrate and molybdenum tailings as the binder and aggregate respectively. The effects of different aggregate on fluidity, early and absolute strength are studied. The results indicate molybdenum tailings can replace quartz sand as aggregate to produce self-leveling mortar, and the performance indexes meet the standard requirements of China.The main differences between molybdenum tailings and quartz are the fineness and morphology of particles. Moreover, using molybdenum tailings as aggregate, the early strength is slightly better than that of the ordinary gypsum-based self-leveling mortar.
Modeling of a gas-liquid phase cumene oxidation process for efficient synthesis of cumene hydroperoxide (HPOC)
Authors: Chen Chujun 
Published: November 2019

Abstract
Cumene hydroperoxide (HPOC) have been extensively used as an important intermediate for developing and synthesizing cross-linking agents of large-scale production of plastics and rubbers. In the chemical industry, HPOC is widely produced by the cumene oxidation process, which is energy-intensive and highly exposed to safety hazards including severe fire and explosion incidents. In this contribution, the cumene oxidation takes place in the mixture of a gas-liquid binary system. The whole set-up of cumene oxidation process including synthesis, separation and purification was established and optimized by using Aspen HYSYS. In the modelling, cumene and O2 were carried by the air flow into a liquid phase of aqueous base solution. The conversion of HPOC was high as 31% at optimum base concentration. We further modelled the distillation separation process considering a multi-stage distillation process. By reducing the pressure of distillation from 200 to 20 kpa, the HPOC separation was more efficient with significant composition differences between gas and liquid phase. Under the pressure of 20 kpa, the purity of HPOC reached high as 80% with minimum energy consumption in the liquid phase after two-stage distillation, and further purified by post-treatment to yield high-purity product.
Working principle and testing technology of circuit breaker closing resistor for 1100kV GIS
Authors: Chen Kerui , Xu Yufu , Guo Ting , Wang Lei , Sun Lei , Geng Ning , He Dengsen 
Published: November 2019

Abstract
The closing resistor can suppress the operation overvoltage and release the energy caused by the overvoltage generated by the power system when switching the line. It is widely used in the ultra-high voltage system AC system. Due to the complicated structure of the circuit breaker with the closing resistor, and the closing resistance of the field is placed in the sealed casing or GIS arc extinguishing chamber, regardless of whether the circuit breaker is in the closing or opening state, the closing resistance is usually not connected. The circuit breaker of GIS is more complicated than the open circuit breaker, especially the circuit breaker structure of 1100kV GIS which is the most complicated, and the maximum resistance of the closing resistor and the closing time of the closing resistor are tested. To understand this, it is very important to understand the working principle and testing technology of the ultra-high voltage circuit breaker. How to carry out preventive tests at the substation site and obtain the technical parameters of the closing resistor has become a key technical problem to be solved urgently. This paper expounds the structure of the ultra-high voltage circuit breaker, analyses the working mechanism of the closing resistor, and gives the method of on-site pre-test, combined with the Yucheng UHV ZF27-1100 (L) GIS circuit breaker to explain and give a case of on-site testing of the pre-input time of the closing resistor was made.
Analysis of Voltage Regulation Methods and Principles of UHV Transformers
Authors: Chen Kerui , Xu Yufu , Wang Lei , Guo Ting , Zhang Yan , Han Yang , Sun Lei , Geng Ning , He Dengsen 
Published: November 2019

Abstract
The autotransformer voltage regulation is divided into two types: on-load voltage regulation and non-excitation voltage regulation. According to the position, it can be divided into medium voltage side line end voltage regulation, neutral point voltage regulation, and series winding end voltage regulation. This paper describes that a certain ODFPS-1000000/1000 transformer uses neutral point voltage regulation to change the magnetic flux for voltage regulation, and gives the magnetic flux, the coil zeta potential and the linear variation of the three-phase voltage, especially the formula for the compensation principle. Derivation and principle analysis.
Supporting Technology Analysis and Attitude Control Principle of MSJ5.8/1.6D Shaft Boring Machine
Authors: Hao Tan 
Published: November 2019

Abstract
A double-layer fixed support structure, with four supporting boots on each platform is used in MSJ5.8/1.6D shaft boring machine to adapt to weak or fractured stratum. Under the stratigraphic conditions, 8 types of support forms are unbalanced. According to this condition, we analysed the specific construction conditions of MSJ5.8/1.6D shaft boring machine in this paper. Then under these construction conditions, we used the finite element simulation to obtain the stress distribution of the supporting parts of MSJ5.8/1.6D shaft boring machine for propulsion unit is optimized. The stress concentration phenomenon appears in the inside of the arc plate of the upper and lower parts of the frame structure. According to the construction technology of the MSJ5.8/1.6D shaft boring machine, the attitude measurement, the attitude adjustment and attitude adjustment threshold rules of the machine are determined.
Separation characteristic of hot air heavy medium fluidized bed
Authors: Li Lingyue , Zhou Shenglun , Chen Feng , Qu Jiangjiang , Liu Chuan , Cheng Sibo 
Published: November 2019

Abstract
The air-density fluidized bed drying and sorting integration experiment system was used to conduct the separation experiment on wet coal. The effects of surface water of coal, drying temperature, drying time, air volume and other factors on separation precision and separation density were investigated. A mathematical correlation model of separation precision and separation density with various influencing factors was established. Studies have shown that the drying temperature and surface water of coal have a significant influence on the separation precision; the increase of drying temperature can improve the separation effect and increase the separation density, the increase of surface water of coal leads to the decrease of separation precision and the decrease of separation density. The increase of drying time contributes to the removal of surface water of coal, which makes the separation precision increase and the separation density increase; As the air volume increases, the separation precision first increases and then decreases, and the separation density decreases first and then increases slightly.
Estrogen Level in Female Local Rabbit Fed Commercial Cod Liver Oil Supplementation
Authors: Ermayanti N G A M , Suaskara I B M , Setyawati I , Suarni N M R , Widhyastini I G A M 
Published: November 2019

Abstract
This study aimed to determine the estrogen level in female local rabbit after being fed commercial supplementation by cod liver oil. The experimental design used was Completely Randomized Design with four feed treatments, i.e. commercial feed without supplementation of cod liver oil (P0) as control, commercial feed supplemented by 3% (P1), 4.5% (P2), and 6% (P3) of cod liver oil. Each treatment consisted of ten rabbits as replication and treatment was given to rabbits from aged 4 to 6 months. The parameters observed were the estrogen level. The results showed that supplementation of cod liver oil with different grade on commercial feed had significant effect (P<0.05) to rabbit estrogen level. It can be concluded that supplementation of cod liver oil on commercial feed up to 4.5% can increase the estrogen level of female local rabbit.
Identification of GH Gene Polymorphisms and Their Association with Body Weight in Bayang Duck, Local Duck from West Sumatra, Indonesia
Authors: Yurnalis  , Arnim  , Putra Dino Eka , Kamsa Zulkarnaini , Afriani Tinda 
Published: November 2019

Abstract
Polymorphisms in the growth hormone (GH) gene that is associated with the growth rate of duck have been the target of many breeding programmes. Molecular market selection has been an acceptable tool in the acceleration of the genetic response of desired to improve production performance in livestock. Growth hormone (GH) has been considered as a candidate gene for growth traits. In this study, polymorphisms of the GH gene were evaluated for associations with body weight in 210 Bayang duck. The objective of this study was to assess the association of polymorphisms in Growth Hormone (GH) genes with growth in Bayang ducks. The polymorphism of the ducks GH gene from promoter region into exon 3 was researched by polymerase chain reaction and DNA sequencing methods. Fifty duck were genotyped by sequencing twenty mutations were detected in the Bayang duck GH gene. Mutation G→A were detected at position -142, 1155, 1117, 1423, and 1786. Mutation C→T were detected at position -62, 506, and 308. Mutation A→G were detected at position 160, 264, 293, 1245, and 2542. Mutation T→G detected at position 250 and mutation TT→AA detected at position 350. Mutation G→T detected at position 775 and mutation T→C were detected at position 1353, 1424, and 2973. All polymorphism were polymorphics except polymorphism T→G at position 250 was monomorphics. Mutation G→A in position 1117 and 1786 were restriction with enzyme Eco721 and TscaI. In the case GH-Eco721 three genotypes were observed, GG, GA, and AA with frequency 0.041, 0.59 and 0.369 respectively. For GH-TscaI locus the frequency were 0.034, 0.782, and 0.184 respectively. The effect of GH-TscaI polymorphism were observed on body weight in 4 to 8 week of Bayang duck.
The effect of organic mineral supplementation in the ration with total mixed fiber ammoniation as basal feed to rumen environment
Authors: Imsya A , Windusari Yuanita , Riswandi  
Published: November 2019

Abstract
This study aims to evaluate the effect of organic mineral supplementation on ration with total mixed fiber as basal feed to rumen environment. This study consists of four organic mineral level on ration and four replicates of each treatment. The treatments are : P1: 60% ammoniation TMF + 0 × Organic macrominerals (Ca. P. and S) NRC (2000) + 15% Swamp Legumes. P2: 60% ammonia TMF + 0.75 × Organic macrominerals (Ca. P. and S) NRC (2000) + 15% Swamp Legum. P3: 60% ammonia TMF + 1 × Organic macrominerals (Ca. P. and S) NRC (2000) + 15% Legum Swamp P4: 60% ammoniation TMF + 1.5 × Organic macrominerals (Ca. P. and S) NRC (2000) + 15% Swamp Legum. Each treatment is added with an organic micro-mineral consisting of 40 ppm organic Zn. 10 ppm organic Cu. 0.10 ppm organic Se. and 0.30 ppm Cr organic. Parameters measured are N-NH3 concentration. total VFA concentration. SCFA concentration. pH rumen. methane gas production and microbial population. The results show that organic mineral supplementation had a significantly different effect (P <0.05) on rumen condition characteristics (N_NH3. total VFA. SCFA and methane). and bacterial cellulolytic populations but did not affect the total bacterial rumen and protozoan population. It can be concluded that organic mineral supplementation of Ca. P and S 1.5 times of requirement according to NRC (2000) gives the best result for improving the rumen environment with Total mixed fiber ammoniation (TMFA) as basal feed and l5 supplementation % legume swamp (kemon air).
The Increase in Production Efficiency of Hydroponic Salad (A Case Study Of Green Oakleaf Lettuce)
Authors: Wangmai Athiwat , Jomjunyong Sermkiat , Phanphet Suwattanarwong , Phanphet Naphetphan , Reungsri Saowaluk 
Published: November 2019

Abstract
The trend of growing hydroponic salad has been increasingly popular because consumers are more concerned about health nowadays. There are several kinds of salad. However, green Oakleaf lettuce was studied in this research because the smart farm in Mae On, Chiang Mai which was the farm in this case study grew green Oakleaf lettuce on 70 percent of its land. The problems found on the farm were: 1. there was no criteria of quality level of green Oakleaf lettuce production, 2. there was no efficient system of controlling factors which caused poor quality of green Oakleaf lettuce production. The solutions to the problems mentioned above were: 1. the criteria of quality level of green Oakleaf lettuce were set by taking green Oakleaf lettuce randomly from Nong Hoi Royal Project Foundation to measure its weight, diameter, height, the number of its leaves, and leaf area. All physical characteristics of green Oakleaf lettuce were analyzed to find the relations among them and the hypothesis was tested. The finding revealed that the weight was significantly associated with all other characteristics at the level of 0.05. Therefore, the weight was used to set up criteria and they were as follows: A grade level for lettuce weighed more than 200 grams, B grade level was between 150 and 200 grams, and C grade level weighed from 50 to 150 grams. After that, these criteria were utilized to divide the quality level of green Oakleaf lettuce on the smart farm in Mae On, Chiang Mai. The result was that 72.1 percent of green Oakleaf lettuce was A grade level, 27.9 percent was B grade level, and 4.65 percent was C grade level. 2. factors affecting the growth of lettuce were studied by using the quality control principles. The finding showed that the solution with greater than 25C had an effect on the growth of lettuce of 17.79 percent, water had an effect of 16.11 percent, nutrients had an effect of 13.56 percent, temperature higher than 25C in a greenhouse had an effect of 11.01%, diseases and bugs had an effect of 10.17%, air had an effect of 10.17 percent, seeds had an effect of 9.32%, light had an effect of 8.47%, and others had an effect of 3.39%.
Decontamination of pesticide residues on tangerine fruit using non-thermal plasma technology
Authors: Sawangrat C , Leksakul K , Bonyawan D , Anantana T , Jomjunyong S 
Published: November 2019

Abstract
Plasma Technology is a well-known approach to decontaminated not only pesticide residues but also fungus on fruits and vegetables. In the present paper, Non-Thermal Plasma (NTP) were successful generated via plasma activated water technique, pin hole. NTP were applied to decontaminated pesticide residues named, cypermethrin, on “Sai Num Pueng”, tangerine fruit. A electrical power 125 watt and air flow rate 15L/min has been used. It was observed that cypermethrin concentration is significantly reduce from 1 ppm to 0.25 ppm which meet international food standard requirment (Codex standard). In particular, the NTP tangerine orange exhibits longer shelf-life as compared to the conventional tangerine orange. There are no significantly different related to appearance, acid flavor, sweetness and smell as also compared to conventional products.
Antimicrobial activity of lactic acid bacteria isolated from fermented durian flesh (tempoyak) against pathogenic and spoilage bacteria during storage
Authors: Nizori A , Sukendra A , Mursyid Surhaini 
Published: November 2019

Abstract
Traditional fermented food ‘tempoyak’ (fermented durian flesh) origin Jambi, Indonesia was used as sources for the isolation of lactic acid bacteria (LAB) and also to study their antimicrobial activity and physicochemical properties of tempoyak during four weeks of storage against underisible bacteria, which were performed using an agar well diffusion, assay method. An isolates were obtained and by sequential screening for catalase activity and gram-staining, The aims of this research were to obtain the total LAB isolates that have highest inhibitory activity against bacterial pathogens and spoilage (Staphylococcus aureus and Escherichia coli ATCC 25923) during four weeks storage and also the physicochemical properties of tempoyak was also investigated. The Completely Randomized Design (CRD) method was used, four replicates with storage times were 1, 2, 3, 4 weeks respectively. The results show that the antimicrobial activity of isolates inhibited the growth of Staphylococcus aureus and Escherichia coli ATCC 25923. There was a significant effect on total titratable acidity, moisture content, pH and total soluble solids content of tempoyak during four weeks storage. The result of this research illustrated that these LAB can be used widely in the food industry as bio preservatives due to their large inhibition spectrum.
The application of biochar in improving the nutrition quality and production of sorghum plant
Authors: Yudiastari Ni Made , Suwitari Ni Ketut Etty , Suariani Luh , Situmeang Yohanes Parlindungan 
Published: November 2019

Abstract
The current condition of agricultural land in Indonesia, both wetlands and highlands, have low organic matter. The role of biochar to increase crop productivity is influenced by the amount of biochar added. Sorghum is a plant that can be used from stems, leaves, and fruit as animal feed. The purpose of this study was to evaluate the productivity and nutritional content of sorghum given biochar with different doses. This research is a one-factor experiment with the simple randomized block design. The treatments tested were biochar doses with 6 dose levels, namely: P0 (without biochar), P1 (3 ton ha-1), P2 (6 ton ha-1), P3 (9 ton ha-1), P4 (12 ton ha-1) and P5 (15 ton ha-1). Plant variables observed were the number of leaves and plant height, fresh forage production, dry matter production, and seed production per hectare, as well as the nutritional quality of sorghum such as crude protein, crude fiber, ash content, and dry matter content. The results showed that there was no significant effect on the variable number of leaves and plant height, crude protein, crude fiber, ash content, and forage, but significantly affected the variables of fresh forage production, dry matter production and grain yield per hectare. From this study, it can be concluded that the application of biochar dosage 9 ton ha-1 provides the best results for the production of fresh forage, dry material production and seed production per hectare.