bluuebunny/crossref_metadata_2025_split huggingface dataset:
Haematological indices and carcass yield of Kampong chickens administrated with turmeric (Curcuma domestica)
Authors: Widiastuti Endang , Isroli Isroli , Yudiarti Turini , Sugiharto Sugiharto , Agus Sartono Tri , Indrat Wahyuni Hanny , Murwani Retno 
Published: October 2020

Abstract
The study aim was to investigate the effect of turmeric (Curcuma domestica) administration on the blood profile, serum biochemical parameters and carcass yield of the Kampong chickens. A total of 200 day-old Kampong chickens were used in the study according to a completely randomized design with five treatments and five replications (containing eight chickens in each). The chicks were provided with the basal ration containing of 22% crude protein. The treatment groups included T0 (chicks provided with basal ration, without turmeric), T1 (chicks provided with turmeric filtrate in drinking water 1:3), T2 (chicks provided with turmeric powder 0.5% in ration), T3 (chicks provided with fermented turmeric residue 0.5% in ration) and T4 (chicks provided with turmeric residue 0.5% in ration). The results showed that turmeric administration increased (P<0.05) the serum total protein concentration and carcass weight of the Kampong chickens at day 32. However, the treatment did not affect the growth performance and feed efficiency of the Kampong chickens measured at days 32 and 45. It could be concluded that the administration of turmeric both through diet and drinking water had minor impact on the haematological indices but increased carcass yield of the Kampong chickens especially during the starter period.
A Fuel Testing Analysis of B20 Biodiesel for Gas Turbines in Indonesia
Authors: Reinmart Benny , Arifin Zainal 
Published: October 2020

Abstract
Biodiesel fuel has been applied to diesel cars for more than ten years and used on power application (turbines, boilers, etc.) recently in whole or blended with fossil fuels. The advantage of using biofuels as a renewable source is the significant reduction of greenhouse gas emissions. This study investigates the possibility of using biodiesel for gas turbine power plant in Indonesia through fuel testing analysis. Some biodiesel produced from four separated factories has been selected as samples for analyzing and then comparing to the fuel specification of three different gas turbine technologies located in Tello, Belawan and Gresik. It is found that no B20 biodiesel meet the requirements of fuel specification from all gas turbine technologies. This study recommends standardizing B20 biodiesel in Indonesia in order to be suitable with the fuel specification of gas turbines. In addition, some technical issues has been proposed to be further research. It is also recommended to do a pilot project using appropriate biodiesel at some gas turbines technologies on operation mode within life cycle cost analysis.
Technical, economic and environmental analysis of residential scale of the rooftop PV system in Surabaya, Indonesia
Authors: Tarigan Elieser 
Published: October 2020

Abstract
This work studies the technical, economic, and environmental of a 3 kWp rooftop photovoltaic (PV) system for residential in Surabaya, Indonesia. The studies were conducted based on the data from a built instalation of rooftop on-grid PV system. In addition, analysis were carried out using SolarGIS PV planner, RETSCreen, and PVsyst simulation tools. The results show that a 3 kWp rooftop system in Surabaya could produce electricity of about 3,898 kWh per year. Under present conditions, economic analysis shows that the rooftop PV system investment would give the payback period of about 5 years. Environmentally, the 3 kWp PV system would result of the reduction of greenhouse gas (GHG) emission of about 3.8 tons of CO2 per year.
Research on Multi-Scenario Distributed Wind and Photovoltaic Power Accommodation Capacity of Distribution Network Based on Time Series Production Simulation
Authors: Wu Jun , Ma Shiyi , Duan Cong 
Published: October 2020

Abstract
With the large-scale access of distributed new energy into the distribution network, the evaluation on the accommodation capacity of distributed new energy in the distribution network has important guiding significance for the scientific planning of distributed generation and grid connection. Considering the parked and regionalized development trend of distributed power generation mode, this paper proposes a method for evaluating the distributed wind and photovoltaic power accommodation capacity of regional distribution networks based on time series production simulation from the perspective of practical applications. Based on the timing difference and complementarity of the load characteristics of substations on the distribution network side, we conducted an evaluation on the distributed wind and photovoltaic power accommodation capacity of the regional distribution network, and through taking the flexible operation mode of the distribution network side into consideration, realized the mutual assistance from time domain and space dimension of distributed new energy consumption and carrying capacity of various substations. Through establishing a mathematical model for the consumption and carrying capacity analysis in the multi-scenario modes such as local node consumption, local station consumption and allowing certain percentage of abandoned electricity, we came out the scale of the maximum consumption of distributed new energy in different scenarios as well as the overall grid connection layout scheme. In the end, we used such evaluation method to conduct an empirical analysis on the distribution network in certain region, verified the correctness and effectiveness of the model, and provided theoretical supports for guiding the regional distributed new energy overall planning and scientific grid connection.
Forecasting Indonesia’s electricity generation: an application of long-range energy alternatives planning
Authors: Qolbi A , Utomo A 
Published: October 2020

Abstract
The primary focus of this paper is to provide an energy forecast for electricity generation in Indonesia. The modelling method with Long-range Energy Alternatives Planning System (LEAP) software is implemented with the interpolation with growth, linear forecast, exponential forecast, and logistic forecast upon two projection scenarios of business as usual (BAU) and with current government policy (CGP). Input data used are including the past data of electricity generation from 2005 to 2017, the target electricity generation from 2019 to 2028 and its share based on Indonesia’s policies and planning on electricity generation, and other electricity generation highlights based on the defining policy. The result analysis for the BAU data projects the total energy generation of 1,306.17 Terawatt-hour (TWh), comprising of 47.7% coal, 43.4% gas, 3.51% hydro, 2.32% oil, and 1.85% geothermal with the remaining percentage from other renewable energy resources. On the second scenarios with current government policy, the model predicts electricity generation to be 1,404 TWh, consisting of 54.4% coal, 22% gas, 10.93% hydro, 0.4% oil, 9.63% geothermal and the rest percentage from other renewable energy resources. The gap in the two results in the renewable energy mix shows the actual challenge that will require the government to take significant action to realize the plan.
An intelligent power flow adjustment method based on reinforcement learning
Authors: Ye L , Xiang Z M , Yang Y , Zhu Y L , Zhang C , Yao H F 
Published: October 2020

Abstract
In order to examine the future power grid operation, the operators usually build future power system model files first according to boundary conditions such as infrastructure plans, maintenance plans, power generation plans, load forecasts, and power plan requirements. As these plans are usually prepared independently, and the scale of the power grid is getting larger and larger, the newly built grid model is usually unsolved, ill, or does not meet the actual grid operation requirements. In this situation, the operators normally have to readjust the units power many times, according to their own experience, to obtain a qualified power flow result. A method for power flow adjustments is proposed in this paper. The Q-Learning (QL) method is used to adjust the power flow from nonconvergence to convergence, and then some direction guidance for subsequent adjustments is provided through certain safety and economic indicators of the power grid (such as network loss, output of the balancing machine, etc.). Finally, two examples of IEEE39 nodes system and Zhejiang power grid are presented to verify the effectiveness and practicability of the proposed method.
Research on sequence automatic execution technology of substation safety measures
Authors: Tan Chang , Chen Haibin , Zhang Binbin , Yang Haiyun , Geng Shaobo , Mao Jianzhong 
Published: October 2020

Abstract
With the increasing complexity of the power grid, in order to ensure the reliability and stability of the power supply system, higher requirements are imposed on the automation level of the power system. Substation security measures are generally performed manually, and maintenance personnel need to cast and withdraw pressure plates one by one based on the automatically generated secondary security measures, and manually verify the results of each step. This paper proposes a technology for the automatic execution of security measures in substations. Based on the generated security measures, it implements automatic sequence control operations and has proofreading functions. This method improves the level of substation automation while ensuring the correct execution results of safety measures, and provides an important guarantee for the safe and stable operation of the power system.
Calculation of electromagnetic field for very fast transient process in GIS
Authors: Zhuangzhuang Yang 
Published: October 2020

Abstract
The calculation method of electromagnetic field generated by very fast transient process in GIS is studied. The VFTC is calculated, and the mathematical model of direct wire electromagnetic radiation is established according to the structure of GIS. The space electromagnetic field is calculated with VFTC as excitation source. The non-stationary VFTC simulation waveform is decomposed in combination with Hilbert yellow method. The electromagnetic field intensity of each decomposed waveform is calculated on the basis of mathematical model of direct wire electromagnetic radiation. Then the electromagnetic field intensity of fast transient process is reconstructed. The results show that the intensity of electromagnetic field decreases exponentially with the increase of distance. The method proposed solves the theoretical calculation of complex electromagnetic field for unsteady VFTC waveform that contains complex frequency components with transient characteristics in very fast transient process. That has theoretical guiding significance for the electromagnetic field calculation of very fast transient phenomenon in GIS.
Research on Internal Resource Quality Evaluation and Cascade Utilization Strategy of virtual power plants
Authors: Liu Dunnan , Wu Wenzhuo , Li Pengfei , Tao Li , Zhang Lin , Han Jianshan 
Published: October 2020

Abstract
With the continuous promotion of power market reform, the trading mode of power market is constantly enriched. In this context, the virtual power plant technology breaks the traditional “source grid load storage” boundary, and realizes the multi-energy complementary and multi-source interaction of the power system, but the resource utilization strategy for the virtual power plant is not enough. Therefore, starting from the composition of virtual power plant, this paper constructs the internal resource quality evaluation system of virtual power plant. Based on the division of resource quality, the cascade utilization strategy of virtual power plant resources is provided. The practical results show that the quality evaluation of internal resources of virtual power plant is helpful to classify the internal resources of virtual power plant, help them realize the cascade utilization of resources, and maximize the economic benefits of virtual power plants.
The Data-based Analysis of Intersection Delay Research
Authors: Wang Ti-ying , Zhu Chun-xia , Jin Zhi-yang 
Published: October 2020

Abstract
To analyse the intersection delay, the crossing of Haikou Renmin Avenue and Haidian Five Road is selected as the target of the research. After the field measurements regarding the average delay times at the target intersection, the methodology of data-based analysis is adopted in this article with a full-scale research. What’s more, to enhance the similar intersections’ service level, this article carefully considers relevant delay factors with attempts to explore multi-factorial measures so as to mitigate the concerned delay. Additionally, with the introduction of modern traffic engineering and traffic management, practical methods are proposed to achieve the effective alleviation of intersection delay times as well as improving its operation quality.
Integrated Energy System Planning Based on Equipment Performance
Authors: Yang Yang , Wei Mengju , Liu Zhao , Wang Yongli , Cai Chengcong , Zhou Minhan , Song Fuhao 
Published: October 2020

Abstract
The Integrated Energy System (IES) has the advantage of improving energy utilization and promoting energy flexibility. Its equipment configuration is one of the keys to Integrated Energy System planning. This paper takes equipment selection and capacity planning as the goal establishes the IES equipment selection and capacity planning model makes the minimum annual inclusive cost as the optimization goal and uses the mixed-integer linear programming algorithm to solve the practical problem. Finally, a typical southern park is taken as an example to analyze and verify the feasibility of the model and algorithm.
Application Research of Full Process Engineering Consulting in Power Grid Engineering Cost Management
Authors: Xiaoyu Xu 
Published: October 2020

Abstract
The safe and reliable supply of electric energy is an important foundation for ensuring the rapid development of my country’s social economy. In recent years, with the continuous increase in the power demand of the whole society in our country, the scale of investment and construction of power grid projects has continued to expand, strengthening project cost management and improving project investment efficiency has become one of the important goals of investment management of power grid enterprises. The whole process engineering consulting service covers the complete life cycle of the power grid project, from the feasibility study analysis report and feasibility estimation preparation, project preliminary design and preliminary budget preparation, to project decision-making plan, project bidding plan, project whole-process cost management. Completion settlement and final accounts have made important contributions to the investment and construction of power transmission and transformation projects in China.
Design and simulation of three-level SVPWM based on FPGA
Authors: Qu Limin , Wang Chao , Sun Wei , Lin Yang , Zhang Hang 
Published: October 2020

Abstract
After expounding the overall design of the three-level SVPWM principle and algorithm, the SVPWM top level module using FPGA is created. And A/D conversion module, the Clarke transformation module, the adjacent vector function time module and the triangle carrier module are also established. Quartus II is used to simulation. And compared with the simulation results of MATLAB, the simulation waveforms are consistent, which verifies the correctness of the simulation results. Taking the diode clamped three-level inverter as the research object, the simulation waveforms of the different modulation M are compared, and the correctness of the three-level SVPWM control strategy is further verified.
Case Analysis of GIS Partial Discharge Based on Cooperative Detection Method
Authors: Yanpeng Gong , Fei Du , Jiangang Bi , Yuan Xu , Wenzhi Chang , Shaoan Wang , Xiaoxin Chen 
Published: October 2020

Abstract
Partial discharge diagnosis methods, such as ultrasonic method, ultra high frequency method and decomposition product method, have their respective advantages and disadvantages in the application. Therefore, in order to combine the characteristics of various detection methods, it is recommended to carry out joint detection of various methods in the field. In the end, a case of GIS PD is introduced.
Model of Battery Capacity Attenuation at Low Temperature
Authors: Wang Hongwei , Liu Jun , Zhao Weizhe , Zhu Yusong , Hu Bin , Fu Yanling , Tao Ziqiang 
Published: October 2020

Abstract
Lithium-ion batteries are widely applied for its advantages of being high in energy density, low in self-discharge rate, and high in maximal cycles, having no memory effect, and being pollutant-free. Accurately predicting the service lives of lithium-ion batteries is the important basis for reasonably working out battery replacement policy and ensuring safe use. For the purpose of this article, an acceleration model is devised for the valid period of capacity and the effect of temperature on lithium-ion batteries, revealing the pattern in the effects of capacity-related factors, and providing the fundemental data for the use of batteries at low temperatures.
Application of UAV Photogrammetry Technology in Airport Project
Authors: Ji Peng , Cheng Lan , Jia Yong , Du Wenjia 
Published: October 2020

Abstract
At present, UAV photogrammetry technology is gradually applied in the field of Airport project survey, which improves the efficiency and accuracy of measurement, and ensures the overall effect of airport construction. The traditional manual measurement method is inefficient and easy to be interfered by other factors, so it is difficult to meet the needs of large-scale, high-efficiency and high-precision measurement of airport construction. UAV photogrammetry improves the efficiency and accuracy of measurement, which can provide important reference for airport construction.
Influencing factors and treatment measures of wet sliding in tunnel
Authors: Zeng Youquan 
Published: October 2020

Abstract
In order to study the main influencing factors of wet sliding in the tunnel, a regional meteorological observation network was established based on Baojiashan tunnel. Based on the detailed monitoring data for two consecutive years, the influence of air relative humidity, air temperature, temperature difference inside and outside the tunnel, rainfall, wind speed, air pressure in the tunnel and other influencing factors on the tunnel wet sliding phenomenon were analyzed. The results show that the wet-slip phenomenon in the tunnel has no obvious relationship with the rainfall and air pressure changes. It is mainly related to the meteorological conditions of high temperature and humidity outside the tunnel and the wind speed of tunnel ventilation. Based on the analysis of the physical mechanism of tunnel wet sliding phenomenon, a warning table for tunnel wet slip phenomenon was developed in order to promptly warn the tunnel wet slip phenomenon and take countermeasures.
Applicability analysis of two kinds of clean heating products in rural area
Authors: Yulei Zhao , Yajing Wang , Chunhua Liu , Xingyu Liu , Chuanliang Xu 
Published: October 2020

Abstract
This article compares the advantages and disadvantages of three decentralized clean energy heating products such as gas wall-hung boilers, air source heat pumps, and biomass heating. Through a rural case in Dezhou, it is recommended that the appropriate clean energy heating schemes should be determined based on local resource characteristics.
Calculation method of PFC assessment index of thermal unit based on time point comprehensive treatment
Authors: Li Jun , Wang Ming , Qiu YuQiang , Sun YuJie 
Published: October 2020

Abstract
With the rapid development of clean new energy, power fluctuations bring great challenges to power grid frequency control. The main ways of dealing with the instantaneous power gap depends on primary frequency control(PFC) of thermal units. Based on the analysis of the problems and shortcomings of the current two assessment methods of PFC, one method for calculating the assessment index of PFC of thermal unit based on time point comprehensive treatment is proposed. The efficiency and accuracy of the examination index of PFC are improved by calculating the multi-point speed governing droop based on the national standard, so as to ensure that the unit can meet the demands of the power grid for the speediness and stability of the PFC action, and ensure the safety and stability operation of power grid.
The Influence of Interstage-Turbine Mixing Cycle on Engine Performance
Authors: Sun Jingchuan , Xu Guoqiang , Wen Jie 
Published: October 2020

Abstract
The optimization of the Brayton cycle has gained an increasing worldwide attention, in order to improve the specific thrust for achieving super cruise. This paper proposes a novel Interstage-Turbine Mixing (ITM) cycle, which guide vanes and rotor blades of turbine would be used as mixing chambers in the expansion process, and presents an analytical methodology by which ITM can be simulated at actual state. The motivation and the working principle of the ITM cycle are explained in detail. In this paper, the variable components method is used to establish the simulation program of the turbine stage mixing cycle. Then parametric cycle studies are performed with the variation of mixing ratio, bypass ratio and fan pressure ratio respectively. The interrelationships between cycle parameters and their effects on cycle performance are discussed. The results show that the mixing ratio of engine with the maximum specific thrust is 0.923, the mixing ratio with the maximum specific fuel consumption is 0.613, the mixing ratio with the best comprehensive performance is 1.127. The above conclusions are independent of the bypass ratio and fan pressure ratio. The predicted engine performance shows that the ITM cycle concept exhibits a competitive specific thrust with respect to engine in the state of non-afterburning, and might be a promising propulsion system for super-cruise air-breathing flying vehicles.
Characteristics and Typical Problems Analysis of Laizhou 1000MW Double Reheat Tower Boiler
Authors: Xu Chunxing 
Published: October 2020

Abstract
The boilers of no. 3 and no. 4 units of laizhou power plant phase II project are 1000MW ultra-supercritical pressure double reheat tower boilers. The units 3 and 4 have been puted into operation in august and november 2019 respectively, and several typical problems of tower boiler are encountered during boiler commissioning. This paper mainly introduces the characteristics of the boiler and some typical problems and their solutions encountered during commissioning.
The Application of Sneak Circuit Analysis on Chemical and Volume Control System
Authors: Gong Zi-Li , Wang Xiaoyan , Yu shengzhi 
Published: October 2020

Abstract
In the chemical and volume control system (RCV) of nuclear power plant pipelines are very complex, there are many valve control nodes. These make the probabilistic risk of unexpected situation rather high in design and running. In order to increase the reliability and safety of the system in design and running, the sneak circuit analysis technology is applied in gas and liquid pipelines of RCV to find latent path and temporal sequence in design and running. Improvements and advices are given to avoid these latent risks in design and running.