bluuebunny/crossref_metadata_2025_split huggingface dataset:
Compartmentalization studies of a deep-design batch Microbial Fuel Cell assembly
Authors: Pamintuan Kristopher Ray S. , Bagumba Ivan Harold P. , Domingo Zairus Dref G. 
Published: February 2020

Abstract
Microbial fuel cells (MFCs) are a promising technology in bioelectricity production. Water systems may be utilized in producing electricity by bio-electrochemical catalytic activity of its inherent microbial culture while simultaneously treating wastewater. Current studies are focusing on design and material optimization for future up-scaling application. For large-scale application, optimization studies such as compartmentalization and stacking become important. In this study, a membrane-less microbial fuel cell is designed and optimized in terms of optimum electrode distances and optimum surface area ratios. It was found that the specific design yielded a maximum of 25.81 mV at the optimum distance wherein dissolved oxygen is sufficiently low enough in this level. Through the optimization of electrode distance was also found that the MFC designed is anode-limited with a 1:4 ratio of anode to cathode is required to produce its maximum power density output. Multiple electrodes study proves the MFC setup is stackable even without membrane separation. This paper reports the first known attempt to quantify an optimum surface area to volume ratio at 2.34 m2/m3.
Vascular Extraction by using matched filter on retinal image
Authors: Kanjanasurat I , Purahong B , Pintavirooj C , Benjangkaprasert C 
Published: February 2020

Abstract
This paper presents a vascular extraction on the retinal image by using matched filter. It uses the approximation to calculate a matrix and convolved with retinal images. Also, the proposed method tested with two widely used databases, including DRIVE and STARE. The results of vascular extraction have an average accuracy of 0.944 in DRIVE and 0.936 in STARE. The sensitivity of DRIVE and STARE, which a parameter for detect vessel correctly was achieved 0.73 and 0.753, respectively. In addition, this algorithm has a high performance and fast algorithm.
The comparison of Faster R-CNN and Atrous Faster R-CNN in different distance and light condition
Authors: Srijakkot K , Kanjanasurat I , Wiriyakrieng N , Benjangkaprasert C 
Published: February 2020

Abstract
This paper presents the comparison of Faster R-CNN and Atrous Faster R-CNN, which detection model, in the different distance and light condition. Also, the dataset for model training is COCO, and the classification model is residual network. The parameter for decision the performance of the model is Mean Average Precision (mAP). The results from an object resolution at 1024x768 of Faster R-CNN at 3 meters in the evening achieved mAP 1.000. Besides, the mAP at 5 meters and 8 meters were 0.798 and 0.760, respectively. The same resolution as previous, the results of Atrous Faster R-CNN at 3 meters in the evening presented mAP 1.000. Also, the mAP at 5 meters and 8 meters were 1.000 and 0.960, respectively. In addition, Atrous Faster R-CNN had better accuracy than Faster R-CNN with appropriate range and brightness from the period of the day for real-life usage.
Position Measurement System Based on Image Trajectory Tracking Control of Directional Conveyor
Authors: Howimanporn S , Chookaew S 
Published: February 2020

Abstract
This paper proposes a control trajectory tracking of direction angle conveyor using image possessing. Conveyor directional is one of the most important topics in classification products. Generally, the other systems cannot be aware of real-time detection and high precision for angle tracking of object works classification. Currently, image detecting and processing systems are widely used and becoming to applying for control field in the future trend. This work installs camera webcam for visual recognition system based on using MATLAB to determine angle position and visual processing, which can recognize the area and calculate the current position of object work, incomplete angle position, and complete angle position. In the paper focus detecting directional angle to trajectory tracking of adaptive control is also responsible for enhancing angle precision between object product and position setpoint target, closed-loop control and tracking error method are designed and implemented on the programmable logic controller (PLC) for improving the efficacy of the conveyor system. The experimental close loop control presents the capability to maintain the setpoint angle position. and the adaptive error tracing with superior response of error controller. The adaptive error tracking gains using a proportional controller. The angle position control from this proposed technique can operate on the different target setpoint and improve efficiently control the directional conveyor.
Single-phase ground fault location technology research and application based on transient recording wave
Authors: Hui YIN , Changkai SHI , Baikui LI , Shilei GUAN , Yue Liu 
Published: February 2020

Abstract
Fault location is an important part of distribution automation. Aiming at the problem of single-phase grounding fault detection, a fault location system based on transient recording technology is proposed. Compared with the advantages and disadvantages of the traditional single-phase ground fault detection method, the single-phase ground fault location application based on transient recording is proposed. The proposed method is not only theoretically verified in the simulation of the distribution network system, but also applied to the operation of fault location network in the true test field, which verifies the effectiveness of the proposed method.
Optimizing the distribution of transmission line tower and foundation
Authors: He-yan ZHU , Jing-bo LIU , Yi-ran LI , Ao-ran XU 
Published: February 2020

Abstract
In the mountainous transmission lines, in order to respond to the national and national grid requirements for environmental protection, the design institute needs to design the towers for the long and short legs and the foundation of the tower. To this end, the paper gives the design scheme of the long and short leg iron tower in Liaoning area, and analyzes the design conditions of the iron tower, the base surface measurement of the iron tower, the insulation coordination and the optimization design of the tower. The purpose of this paper is to find the mutual configuration of the long and short leg towers and the high and low foundations that can be used to optimize the transmission line in mountainous projects, and use finite element software to verify that the minimum amount of base materials is the same when the tower position is constant. The basic base surface has the least amount of shovel excavation, which can better protect the geographical environment of the area where the tower is located, and can also control the amount of basic materials to a certain extent and reduce the total investment of the project.
Research on virtual synchronous generator grid-connection based on phase-locked loop
Authors: Wang Shun , Zhu Xuemei , Fan Yijie , Shao Shuai , Lei Changyan 
Published: February 2020

Abstract
When a single Virtual Synchronous Generator (VSG) is connected to the grid, the output voltage amplitude and frequency are significantly different from the grid voltage, which will impact the power grid. In order to solve this problem, the paper proposes a grid-connected pre-synchronization control method. By controlling the virtual synchronous generator based on the Phase Locked Loop (PLL) pre-synchronization unit, the voltage amplitude, frequency and phase of the VSG output before the grid connection can be consistent with the grid side, reducing the instantaneous impact of the grid. At the same time of the current, the output voltage of the virtual synchronous generator is stabilized. The single-machine VSG grid-connected model was built on the MATLAB/Simulink simulation platform and the effectiveness of the method was verified.
Power failure evolution model considering voltage stability
Authors: Wang Jialin , Qun YU , Wang Qi 
Published: February 2020

Abstract
Voltage instability is often associated with power system blackout. In order to study the evolution mechanism of power failure and voltage instability in power failure, this paper proposes a new kind of power failure evolution model that considers voltage stability. The theory of static voltage stability analysis is introduced into the modelling. According to the simulation results of power failure in an IEEE39 system, the model proposed in this paper verifies the self-organized criticality of power network. It was also found that voltage instability lead to the increase of the frequency and scale of power failure. Furthermore, the frequency of load nodes in voltage instability accidents is calculated and the set of weak nodes is obtained.
Research on energy efficiency management method of AC/DC hybrid distribution system
Authors: Zhou Juan , Wenjing XIE , Yunfeng XIA , Feng XUE , Junni SU 
Published: February 2020

Abstract
With the increasingly serious problems of fossil energy crisis and environmental pollution, vigorous development of Distributed Renewable Energy has become an important means of energy structure reform and energy consumption transformation. On the distribution side, AC/DC hybrid distribution system has been widely studied for its advantages of accessing multiple types of energy, satisfying diversification energy demand, realizing multi-energy complementation and improving grid security. The energy efficiency evaluation and management of AC/DC hybrid system are of great guiding significance to the planning and design of AC/DC system. However, traditional energy efficiency management mainly reduces primary energy consumption by saving electricity. For AC/DC systems with multiple distributed energy sources, it is difficult to reflect the efficiency level of the whole system by considering a single technology or a single part of energy efficiency management. Aiming at the characteristics of AC/DC hybrid distribution system, this paper studies the energy efficiency management method of the system. Firstly, combined with energy efficiency evaluation and system economic analysis, energy efficiency evaluation index of AC/DC hybrid distribution system are formulated. Secondly, the energy efficiency management method is studied through the study of adjustable load, transferable load and different types of load overall management method. Then the method of combining power quality and energy efficiency is studied. Finally the interaction between source and load is studied to improve the energy efficiency of the system. The energy efficiency management method proposed in this paper can fully tap the potential of load adjustable and energy saving, improve the comprehensive energy utilization efficiency of the system, which provides a basis for the engineering application of AC/DC hybrid power grid.
Comparison of corrosion characteristics of conductive concrete
Authors: Xu Tian , Feng Pei , Xin Liu , Lulu Jia , Chenxing Deng , Pinghao Yang , Hongbo Cheng 
Published: February 2020

Abstract
Conductive concrete has great application potential in grounding and electromagnetic shielding. To verify the effect of conductive concrete on the corrosion of grounded metals, several conductive concrete with different conductive phase, such as Q235 carbon steel, galvanized steel and stainless steel, were prepared. The conductive concrete test specimens are immersed in red soil leachate, their open circuit potential, potentio-dynamic polarization and electrochemical impedance spectroscopy were measured by electrochemical method. Corrosion behaviour of different grounding metals in conductive clays with different conductive phase are compared based on the pre-mentioned three indicators. The results show that conductive concrete can reduce the corrosion of grounded mental effectively compared with ordinary concrete, galvanized steel has better corrosion resistance than Q235 carbon steel, graphite-based conductive concrete can protect the grounding metal better than stainless steel-based conductive concrete, and high conductive phase content can make a low metal corrosion.
The study of intelligent transport systems management of convoy of unmanned vehicles with a lead vehicle with the purpose of increase of efficiency of cargo transportation
Authors: Endachev D. , Kolbasov A. , Karpukhin K. 
Published: February 2020

Abstract
This material describes the development of an intelligent transport system for controlling the movement of a column of unmanned vehicles with a leading pilot vehicle in order to increase the efficiency and safety of freight and passenger transportation in remote regions of the North of Russia, as well as in the Arctic and Antarctic. The obtained scientific results allow us to move on to the creation of new types of freight and passenger vehicles that can move unmanned modes over long distances, but at the same time, the possibility of direct human intervention remains. The introduction of this type of vehicles will improve the efficiency of freight and passenger transportation, reduce fuel consumption by predicting the traffic situation and increase the safety of transportation on public roads. The materials describe the circuit diagram of the components of the slave and leading intelligent vehicle, give mathematical models of some control systems and describe the tests that confirmed the operability of this type of vehicle. Tests have shown the adequacy of mathematical models and the complete autonomy of driven vehicles that follow the lead.
Trans-regional power trading optimization for promoting clean energy accommodation
Authors: Xinhong Shi , Yefei  , Panjiajia  , Zhangxu  , Gaoqin Wang , Jianhu Lv 
Published: February 2020

Abstract
A trading decision-making method that uses electricity market means to promote clean energy accommodation is proposed. Making Ml use of load difference, peak-to-valley difference and time difference, a joint optimization model of clean energy purchasing-selling-transmission is established to promote clean energy accommodation, which considers the willingness of the recipient side, and satisfies the physical operation constraints of DC line. The model can set the power curve shape, in order to realize the lean decision of cross-regional trading power, and propose a practical accommodation plan. Based on the calculation of cross-regional power transactions between two regions in China, the validity of the model and scheme is verified.
Research on the working medium of the absorption air-conditioning system with a new regeneration method
Authors: Li YH , Cheng F , Li XW 
Published: February 2020

Abstract
To be environmentally friendly and save energy, absorption air-conditioning system is a good attempt. However, plenty of heat waste in the regeneration limits its performance. For further application, the capacitive deionization (CDI) regeneration method has been proposed which works between the electrode pairs of the capacitor to achieve the interconversion between water and solution. Previous work shows the theoretical COP of the new system could reach up to 6 under certain conditions. Different absorbents have been calculated and experimented in this paper to find a most suitable absorbent to approach the highest possible COP. Different concentrations also has been considered. It is found that the COP of the CDI based system can attain 2 to 3. Experimental results agree well with theoretical results of the tendency of the system performance among different absorbents and different concentrations. There is some difference of the COP because the energy recovery rate in our experiment can not approach 50% which is calculated at 50% theoretically. In practical applications, the COP could be higher with energy recovery of CDI.
Real-road energy consumption characteristics of electric passenger car in China: a case study in Shenzhen
Authors: Ai Yi , Li Jingyuan , Yu Hanzhengnan , Liu Yu 
Published: February 2020

Abstract
As the increasing complains of the electric passenger car owners about the lower pure electric mileage under real-road driving condition than the regulation standard test result, the annual real-road energy consumption characteristics of 20 MPV electric passenger cars in Chinese city, Shenzhen, have been investigated to analyse the effect factors causing the energy consumption difference between these two results. Results showed that the annual variations of real-road energy consumption rate of each month were agreed with the variations of air conditioning using duration. The highest and lowest energy consumption rates were obtained in July and March, which increased the energy consumption rate of whole vehicle about 24% in the maximum extent. The difference of the energy consumption between real-road and regulation standard test was attributed to the effects of air conditioning using and driving condition (driving velocity and acceleration distribution), which have been qualified in this paper.
Analysis on the trading mode suitable for nuclear power in power market
Authors: Zhang Xuefei , Xiong Yi , Xiong Chuanyu , Tang Xuejun , Li Zhiwei 
Published: February 2020

Abstract
The energy crisis in the 21st century has become the most imperative problem to be solved by human beings. Nuclear energy is a vital base-charge power supply, which has high security, clean function and high efficiency. With the gradual development of nuclear power, the power is participating in the direct trading of the electricity market step by step. However, the rules of direct trading in China is not relatively complete, which leads to the unreasonable decline of the economy of nuclear power units. And there are drawbacks in the adjustment of energy structure, which also has a negative impact on energy conservation and emission reduction. So the author analyzes the current national nuclear power policies and electricity price costs, and proposes the current problems faced by nuclear power in direct electricity market and provides the basic directions and ideas for solving measures to help nuclear power better participate in direct electricity trading.
Dark fermentative hydrogen production from cheese whey using hydrogen-producing bacteria isolated from Mount Pancar hot spring, West Java
Authors: Gazali F M , Praharyawan S , Susilaningsih D 
Published: February 2020

Abstract
One of the most promising ways to produce high hydrogen yield is through dark fermentation by using dark fermentative bacteria due to the capability of these microbial agents to convert various organic compounds, particularly sugar, into hydrogen gas. In this study, three Gram-positive hydrogen-producing bacteria with a different character of colony on agar, namely as RP 009, RP 010, and RP 011, had been successfully isolated from Mount Pancar hot spring, West Java. All these isolates were able to produce hydrogen gas in all cheese whey concentration, consisting of cheese whey 30%, 60%, and 100%. RP 011 was the most favorable hydrogen producers in this study due to its high hydrogen productivity (4,400.625 ml biogas/L medium) as well as its ability to adapt and consecutively produce hydrogen even in the very high concentration of the organic compound. The best cheese whey concentration for hydrogen production in this study was 60%, considering the efficiency and effectiveness of the organic compound conversion into hydrogen gas. Ultimately, this study presented the potential of high hydrogen productivity of indigenous hot spring bacteria isolated from Mount Pancar hot spring in which had major potential for environmentally friendly bioenergy and biomass refineries.
The physical and chemical analysis of nanoemulsion from extract rodent tuber mutant plant (Typhonium flagelliforme Lodd.)
Authors: Sianipar N F , Yuliani S , Purnamaningsih R , Assidqi K , Abbas B S 
Published: February 2020

Abstract

Typhonium flagelliforme Lodd. is well known as rodent tuber herbal plant has been successfully irradiated by using gamma rays irradiation technique to increase the bioactive compounds. Despite the potential of rodent tuber mutant plants, the idea came up to develop functional food formulations into nanoemulsion systems. Nanoemulsion composed of extract, glycerol, DMSO, tween 80, and water in different concentrations. The rodent tuber mutant plant extract and DMSO were formulated into nanoemulsion with a fixed concentration of 0.1% of the weight of the formula, the emulsifier was used tween 80 with a concentration of 0.1% and glycerol with a concentration of 0%, 2.5%, 5%, 7.5%, 10% of the weight of the formula while the solvent used is distilled water with a final volume 10 mL of the weight of the formula. This study aimed to determine the physical and chemical characteristics of nanoemulsion prepared at various concentrations and volume ratios of rodent tuber mutant plant extract and surfactant. The analysis of the component of the nanoemulsions was conducted using Gas Chromatography-Mass Spectrometry (GC-MS). The alkane group found in the nanoemulsion sample, such as eicosane (5.96%). It can be concluded that the best extract and surfactant concentrations are using glycerol at 0%. The droplet sizes of 0% glycerol concentration had 111.6 nm and a polydispersity index of 0.541 compared with other concentrations. Nanoemulsion at 0% of glycerol showed a low zeta potential value of -19.36 mV. The destabilization of nanoemulsion after 24 h was dominated with creaming appeared, as shown in negative zeta potential. This shows that the formulation is not stable enough for a certain period of time even though it has a nanoparticle size. The development of nanoemulsion optimalization is a prospective approach to solve the stabilization problem.
Fluorene Degrading Bacteria from Indonesian Marine Environment
Authors: Ilmiah Z , Yetti E , Dahliaty A , Yopi  
Published: February 2020

Abstract
Fluorene is one of the Polycyclic Aromatic Hydrocarbons (PAHs) that has toxic, mutagenic, and gives a persistent effect in the environment. One of the alternative ways that can be done to overcome environmental problems due to contamination of fluorene is biodegradation using marine bacteria. There are 25 marine bacterial isolates from Laboratory of Biocatalyst and Fermentation (LBF), Research Center for Biotechnology LIPI Cibinong, Bogor which have capability to degrade fluorene. Selection of these 25 marine bacterial isolates showed that LBF-1-0144 isolate was the good relatively in degrading fluorene. This isolate was able to grow in 1500 ppm fluorene containing medium with an initial cell OD600nm of 2.5 and growth percentage of 58.652%. Molecular identification results based on the 16S rDNA gene of the LBF-1-0144 showed that this isolate had similarity of 96% with Bacillus subtilis strain 168.
Enhancement of lipid production of Chlorella sp. 042 by mutagenesis.
Authors: Rahman D Y , Rachmayati R , Widyaningrum D N , Susilaningsih D 
Published: February 2020

Abstract
In this study, the UV mutagenesis was performed to enhance lipid productivity in Chlorella sp. 042 isolated from East Kalimantan. One hundred colonies were screened with a method based on Nile Red fluorescence. Growth, biomass, and lipid parameters of the selected mutants (M7 and M22) were grown in a batch system of 400 mL AF6 medium and analyzed in detail. The result showed that the lipid content of M7 and M22 were higher than wild type (30.82%), 35.15%, and 43.85%, respectively. The M22 slightly had higher carbohydrate and protein content than wild type and M7. The overall result indicates that the treatment of UV mutagenesis to Chlorella sp. 042 can increase the total lipid production and other biomass content. The mutant could consecutively be used as the lipid feedstock for algal oil production.