bluuebunny/crossref_metadata_2025_split huggingface dataset:
Agreement between the Clinical and Autopsy Results of Children Who Died with Pneumonia in Pediatric Intensive Care
Authors: Vásquez-Hoyos Pablo , Bernal-Peña Laura C. , Castro-Gómez Daniel A. , Jaramillo Lina , Polo José F. , Parra-Medina Rafael 
Published: November 2020

AbstractThis study aimed to measure the agreement between the clinical and anatomopathological results of children who died with pneumonia from two pediatric intensive care units. Pediatric patients chosen were those who died between January 2008 and December 2015. The agreement was tested with Kappa. A total of 111 autopsies were included. Upon autopsy, 58 had pneumonia, 33 had it clinically and pathologically, 24 only clinically, and one only in autopsy. The Kappa agreement was 0.5 (95% confidence interval of 0.4 to 0.7). The level of agreement between the clinic and the autopsy is moderate. However, the consistency in cases of clinical pneumonia is low.
Acquired Brain Injury in the Pediatric Intensive Care Unit: Special Considerations for Delirium Protocols
Authors: Ubeda Tikkanen Ana , Kudchadkar Sapna R. , Goldberg Sarah W. , Suskauer Stacy J. 
Published: November 2020

AbstractThe goal of this article was to highlight the overlapping nature of symptoms of delirium and acquired brain injury (ABI) in children and similarities and differences in treatment, with a focus on literature supporting an adverse effect of antipsychotic medications on recovery from brain injury. An interdisciplinary approach to education regarding overlap between symptoms of delirium and ABI is important for pediatric intensive care settings, particularly at this time when standardized procedures for delirium screening and management are being increasingly employed. Development of treatment protocols specific to children with ABI that combine both nonpharmacologic and pharmacologic strategies will reduce the risk of reliance on treatment strategies that are less preferred and optimize care for this population.
La marque d’intensification des comparatives proverbiales en français et en espagnol
Authors: Anscombre Jean-Claude 
Published: November 2020

Résumé
Cette étude vise à expliquer les différences de comportement des comparatives à parangon Adj. comme/ como
GN du français et de l’espagnol. L’analyse se fonde sur une étude à la fois synchronique et diachronique.
Cyclic deterministic bidirectional quantum controlled teleportation with maximally seven-qubit entangled state
Authors: Zhang Wanbin , Li Baosheng , Zhang Zhanjun 
Published: November 2020

Abstract
In a local quantum network, multi-qubits in various entangled states might be distributed in different remote nodes due to some peculiar demands. In this paper we consider a seven-qubit entangled state in a given qubit distribution among three participants and study its capacity in quantum teleportation (QT). To be specific, we put forward three controlled QT schemes utilizing the state. In each scheme QT can be deterministically and bidirectionally realized between two participants with another as the controller.
Analysis and Calculation of Power System for Medium Voltage AC Electric Propulsion Ship
Authors: Wei Jiang , Zhuo Chen 
Published: November 2020

Abstract
This paper introduces the advantages of integrated electric propulsion system in large and medium-sized ships. The short circuit current, grounding fault, harmonic and voltage drop in the design of medium voltage AC integrated power system are calculated and analyzed. Taking a real ship as an example, the power system design is completed.
Design and Implementation of the Intelligent controller for Electric Ship
Authors: Zhang Ze Yu , Yi Xia 
Published: November 2020

Abstract
As an important device in the power system of electric ship, the intelligent controller plays a key role in improving the real-time monitoring and reducing external hard-wire connections. This article introduces the design and implementation of the intelligent controllers which based on ARM controllers, the controller use STM32 series microcontrollers based on the Cortex-M3 core as the core controller, design IO conditioning circuits, GPIO conditioning circuits, and network communication circuits and so on. Also the article carry out the controller testing and the real ship application. The equipment has the characteristics of high reliability, miniaturization and modularization. The successful development of this equipment has improved the degree of automation of electric boats greatly, and has a positive effect on fault monitoring and fault analysis of the power system of electric ship.
Research on Intelligent Search Framework Technology Oriented to Monitoring of Power Grid Dispatching Equipment
Authors: Pan Xiaohui , Chen Tan , Liu Shengnan 
Published: November 2020

Abstract
The development of power grid dispatching and monitoring services puts forward new requirements for the digitization and intelligence of dispatching systems. This paper combined grid control data and business characteristics to study the intelligent search framework for grid dispatch monitoring, as well as key technologies such as thesaurus modeling, power feature word segmentation algorithm, multi-factor correlation ranking algorithm, and power knowledge graph association modeling, and developed a smart search application for the power grid that regulates and controls the cloud, to implement search for power grid equipment models, equipment operations, monitoring events, services, etc. It can carry out comprehensive, accurate, fast and intelligent retrieval of the monitoring operation data of mass dispatching equipment, which provides strong support for the management and decision-making of dispatching equipment monitoring business.
Application of Visible Image and LiDAR Point Cloud Fusion Technology in Distribution Network Tree Barrier Inspection
Authors: Jinqiu Wu , Hanjun Liu , Jiakai Yang , Yuhao Chen 
Published: November 2020

Abstract
Aiming at the problems of poor visual effect and low accuracy of single use of LiDAR or visible light camera for tree barriers inspection in distribution corridors, the LiDAR point cloud data and visible light image data are obtained simultaneously through UAV carrying integrated system. First, the LiDAR point cloud data are de-noised, filtered and classified, and the ground and non-ground laser point clouds are separated. Then, the laser point cloud data and visible image data are set up in the same coordinate system by coordinate conversion. Then, the spectral information of visible image is assigned to the corresponding point cloud, and the 3D real scene image of point cloud is reproduced to realize the function of identifying and analyzing the hidden trouble of distribution corridor tree barrier. It greatly improves the accuracy and efficiency of tree barriers hidden trouble inspection, and the visual effect is intuitive.
Seismic analysis and retrofitting countermeasure for 1315 kV capacitor with multi-column posts
Authors: Lin Sen , Cheng Yongfeng , Lu Zhicheng , Sun Yuhan 
Published: November 2020

Abstract
A number of power substations and converter stations are inevitably built in high earthquake intensity regions. There are many types of electrical equipment with multi-column posts in power substations and converter stations. The PLC/RI capacitor with high seismic vulnerability is a typical electrical equipment with multi-column posts. A 1315 kV PLC/RI capacitor was modeled and analyzed using finite element technique. The modal analysis results show that the primary frequency of the capacitor is close to the earthquake dominant frequency. Additionally, the 2nd, 3rd and 4th order frequencies are within the range of the flat segment of the seismic response spectrum. After performing seismic analysis, the most fragile location was identified, that is the porcelain insulator at the bottom of the capacitor. The stress safety factor of the porcelain insulator is 0.71, which indicates the capacitor does not meet the seismic requirement for peak ground acceleration (PGA) = 0.3 g. To improve the seismic performance of capacitor with multi-column posts, enhancing connection stiffness of the structure is proposed. Based on this countermeasure, the thickness of the connecting plate between the upper hollow composite insulators and the porcelain insulators at the bottom of capacitor was increased from 20 mm to 50 mm. After the optimization, the 1315kV PLC/RI capacitor satisfies the seismic requirement for PGA value of 0.3 g.
Hybrid tram energy management based on PMP
Authors: Wu Jian , Zhao Bin , Zhang Chi , Ji Qiao , Yin Ze 
Published: November 2020

Abstract
Dynamic programming is often used to solve the global optimization problem of hybrid energy storage tram. However, the amount of calculation is too large, resulting in the calculation time is too long. To solve this problem, an energy management strategy (EMS) based on Pontriagin minimum principle (PMP) is proposed. Through the analysis of Hamilton function, the optimal control path is obtained by solving the minimum value each time. The global optimization problem is changed into instantaneity, and the calculation speed is fast. The simulation results show that the energy management strategy based on PMP can ensure the normal operation of tram. Keep the bus voltage of hybrid energy storage tram within a reasonable range. Compared with the energy management method based on rule control, the power consumption is reduced by 9%.
Affine-Type Model of Variable Renewable Energy and Its Application in the Uncertain Power Flow
Authors: Huang Gengye , Shao Zhenguo , Zhang Yan 
Published: November 2020

Abstract
The intermittent variable renewable energy (VRE) results in uncertainty in distribution networks, and the existing affine iterative algorithm cannot consider the characteristics of VRE. To deal with such issues, an affine-type model of VRE considering its regulation characteristics was proposed in this paper. Furthermore, an alternating iterative algorithm based on Newton-Raphson iterative algorithm was proposed, which can consider both power flow equations and the VRE models. Finally, the effectiveness of the affine-type model of VRE and the affine iterative algorithm were evaluated on the modified IEEE 33-bus system and PG&E 69-bus system. The simulation results showed that the proposed method has sufficient completeness and slight conservativeness. Moreover, the proposed method with VRE models is superior over Monte Carlo method, particularly in terms of calculation burden.
AGC optimization of supercritical heating unit
Authors: Liu Enren , Yan Qing , Li Yanyan , Shi Shuo , Li Jun , Gao Song , Yu Qingbin 
Published: November 2020

Abstract
A 330MW supercritical coal-fired unit, the unit undertakes the task of industrial steam supply all year round, with a rated steam supply flow of 250t/h. Due to the poor heat storage capacity of the unit and the large industrial steam supply of the unit, the unit is not performing well in the AGC-PROPR mode, Periodic large fluctuations in main steam pressure affect the safety of the unit, AGC performance indicators do not meet the requirements, and this unit is often evaluated by the power grid. In order to improve the AGC adjustment performance of the unit, increase the conversion circuit of heating load and electric load, improve the logic of steam turbine main control, boiler main control and fuel main control, and optimize the PID parameters in a targeted manner. Through optimization, the main steam pressure of the unit does not fluctuate greatly, and the K1, K2, K3 indicators meet the requirements.
Hidden danger and Optimization for the DEH Logic of STC-Siemens Ultra Supercritical Unit
Authors: Du Zhizheng , Qi Zhenye , Zhou Guangfei 
Published: November 2020

Abstract
With the wide application of STC-Siemens ultra supercritical unit technology, the structure design and control logic of the turbine electro-hydraulic control system (DEH) are also popularized. However, due to the defects of Siemens DEH logic design and the unavoidable mistakes of STC auto control center in the process of translating Siemens DEH logic, some hidden dangers of this type of unit are gradually exposed, which affects the reliability and safety of the unit. It is mentioned in this paper that due to the hidden trouble of ATT test logic, during the process of ATT test, 12% command signal of regulating valve setting is sent out, and the unit abnormal shutdown; When the unit is put into the AGC mode to track the AGC command, the logic hidden danger causes triggering of the quick closing condition C20 of the regulating valve (the deviation between the flow instruction converted by the valve feedback and the actual flow instruction is greater than 40%), and the unit abnormal shutdown. In order to solve these problems, the optimization suggestions of DEH logic are put forward, in order to improve the reliability of unit operation. It provides a reference for this type of unit.
Feeder Fault Warning of Distribution Network Based on XGBoost
Authors: Cai Jing , Cai Yangyang , Cai Hui , Shi Shuilan , Lin Yanting , Xie Miaohong 
Published: November 2020

Abstract
In this paper, the historical observation data of the power grid are used to build a predictive model of power outages for distribution network by using machine learning methods. By judging whether the distribution transformer network is about to fail, the maintenance and troubleshooting of the distribution network can be achieved in advance, thereby fundamentally reducing the occurrence of power fault of the distribution transformer. The data covers several dimensions such as distribution network loads, equipment ledgers, historical faults, weather and so on. The experiments show that the proposed method based on XGBoost is valid and efficiency for feeder fault early warning.
Analysis of the Influence of Distributed Photovoltaic Power Station Grid Connection on Distribution Network Relay Protection
Authors: Yin Zhilong , Wang Zhiguo , Xue Shuilian 
Published: November 2020

Abstract
With the improvement of China’s economic level and the continuous development of the power industry, the current photovoltaic power supply has been welcomed by more and more users as a new type of energy in the power field. For the power generation field, it can promote the power resources Production and development. Since the implementation of the distributed photovoltaic power plant grid connection in my country, it has also had a large impact on the relay protection of the distribution network. This article has analyzed this.
Optimal Scheduling of Park Integrated Energy System Based on Multi-energy Complementary
Authors: Yang Xiaoping , Cao Youmin 
Published: November 2020

Abstract
For the park level integrated energy system with renewable energy access, in order to optimize the operation cost of the park and solve the problem of renewable energy consumption, this paper proposes a day ahead optimized scheduling model of the park integrated energy system, which provides an effective solution for renewable energy consumption by considering the coordination of energy conversion and energy storage equipment to achieve multi-energy complementarity. Finally, an example is given to verify the validity and feasibility of the proposed model.
Multi objective transmission network expansion planning considering wind power uncertainty and scenario reduction
Authors: Piao ZheYong , Chen MingYue , Li ShouQiang , Li HaiYan 
Published: November 2020

Abstract
Under the background of large-scale new energy grid connection, the selection of grid connection point affects the grid structure to be expanded. The intermittence of wind power and the correlation with load also affect the voltage and line safety of each node in the grid. In order to accurately describe the uncertainty factors such as wind power output, multi scenario stochastic simulation technology and reduction method are used to establish multi scenario to accurately describe multi-point wind power and load uncertainty; At the same time, a multi-objective transmission network expansion planning model considering the cost of investment, operation and reliability is established. The effectiveness of the model is verified by IEEE 30 bus simulation. It shows that the accuracy and rationality of transmission network expansion planning can be improved by scenario reduction.
Operation optimization of AC/DC hybrid distribution network considering uncertainty
Authors: Zhao Haibo , Wang Jiawei , Hu Ende , Zhang Zhi , Yang Yanhui , Wang Sixian 
Published: November 2020

Abstract
In order to solve a series of problems such as the increase of AC/DC hybrid distribution network loss caused by the uncertainty of wind and solar output. Based on the uncertainty theory, wind power plants and photovoltaic power generation are modeled, and a power flow calculation method for AC/DC distribution networks is proposed. Considering that when consuming fixed distributed generation, the minimum network loss is the objective function, and a particle swarm optimization-based AC/DC operation optimization method is proposed. Finally, the validity and feasibility of the proposed method are verified by simulation examples.
Material development approach matching to an injection moulding rejuvenation for cable insulation failure
Authors: You XinYu , Zhao YongXiang , Wang JunGuo , Liu ZhiWei 
Published: November 2020

Abstract
This paper aims to construct a material developing approach matching to an injection moulding rejuvenation technique for cable insulation failure. The work starts from a chemical composition testing to the cable original insulation material. The applied composition should be determined by considerations of property requirements, including insulation, mechanical behaviour and environmental adaptability. In addition, a stable and standard manufacture technology should be groped to assure having a stable repair quality. Finally, proper material should be verified by testing for meeting normal the cable insulation requirements. By the above approach, typical material development is performed and the results by a code-based insulation property testing reveal the present approach has successfully been applied to develop a proper material matching to injection moulding rejuvenation technique for cable insulation failure.
Optimal operation of biomass integrated energy system in villages and towns
Authors: Li Shouqiang , Liu Wenxia , Wang Jing , Liu Zongqi 
Published: November 2020

Abstract
In order to improve the efficiency of energy utilization, improve the energy structure of villages and towns, and promote the efficient application of biomass energy in villages and towns, an integrated energy system (IES) with biomass energy as the core is constructed, and a two-stage optimization method of IES considering the loss of heat supply network is proposed. In the first stage, considering the loss of heat supply network and taking the minimum total heat supply as the objective, the outlet temperature of multi heating equipment is optimized. Then, the output mechanism of biomass cogeneration is analyzed and its output model is established. Considering the whole process of biomass transportation, storage and treatment, the energy supply cost model is established. In the second stage, the output operation optimization of each equipment of IES is carried out with the goal of maximum daily income. The results show that the model is effective, the complexity of the problem is reduced by two-stage optimization, the biomass utilization efficiency is improved by cogeneration, and better benefits can be obtained by constructing biomass energy IES.
Research on Harmonic elimination Feedback Control Technology of Sine Wave Inverter Based on Instantaneous Reactive Power Theory
Authors: Tiancheng Ji , Yingchuan Qi , Hongtao Zhao , Liyan Dai 
Published: November 2020

Abstract
Aiming at more and more occasions where the sine wave output inverter is used for power supply of a non-linear load, the sine wave output waveform distortion of the inverter caused by the non-linear load is serious. The feedback control strategy of sine wave inverter based on instantaneous reactive power is proposed. Through the fundamental wave instantaneous tracking feedback control based on the instantaneous reactive power theory and the detection and feedback control of the output harmonic signal, this paper realizes the ability of the inverter to maintain the output waveform with high sine degree and low distortion under various load conditions, it guarantees the error-free control of the fundamental wave and has a good dynamic response performance. This solution has the advantages of easy controller stability design and good implementability. The simulation circuit is built by Matlab / Smiulink, and the correctness of the theory is verified by the simulation results.
Ku-band 360-W Pulsed Solid-State Power Amplifier with Excellent Comprehensive Performance
Authors: Shen Shengqi 
Published: November 2020

Abstract
A design method of solid-state amplifier based on hybrid power-combining technique is presented in this paper. Also a 360-W pulsed solid-state power amplifier (PSSPA) constituted of 32 monolithic-microwave integrated-circuit power amplifiers (MMIC PA) operating in Ku band is designed successfully using this method. The PSSPA mainly consists of three stages of power-combining circuits and one stage of Wilkinson power-amplify module array. The power-combining circuits are respectively based on rectangular waveguide, coaxial line and microstrip line. The proposed combiner structures have the advantages of high power capacity, high power-combining efficiency and easy heat sink design. The measured results indicated that, in the frequency range of 15.5 GHz-16.5 GHz, the average output power is 362 W and the average active power-combining efficiency is 86.95%.
Research on time-division analog multiplier for 50ppm reference electrical energy meter
Authors: Yan Du , Lin Chen , Jun Ma , Hong Zhang , Xin-Hua Zhou , Wen-Zhi Chen 
Published: November 2020

Abstract
Time-division analog multiplier is the measurement core of reference electrical energy meter. The measurement accuracy of time-division analog multiplier is improved by using signal conversion and phase lock technologies and symmetrical triangle wave generator. Signal conversion and phase-locked technology will be measured signal and triangle wave generator of time division multiplier correlation processing, to achieve triangle wave generator of time division power multiplier and measured signal full cycle synchronization. A symmetrical triangle wave generator with reference level accuracy is developed, which makes the measurement accuracy of time-division analog multiplier reached 20ppm and meet the measurement requirements of 50ppm reference electrical energy meter.
Research on Security Control Mechanism of Power Distribution IoT Based on Trusted Computing
Authors: Sun Yue , Li Qiang , Zhou Bo , Chen Wei , Xu Xiaotian , Gong Gangjun 
Published: November 2020

Abstract
Performing an in-depth study on the Power Internet of Things (IoT), it is known that the distribution network faces higher security risks due to a large number of terminals, various types of equipment, and the flexible access of each device to the distribution network structure and dynamic boundary. Therefore, it is urgent to make significant research on the security control mechanism for the power distribution Internet of Things, to realize the safe access of IoT devices in the Power IoT. Firstly, this paper analyses the shortage of power system security under the background of the IoT. Secondly, trusted computing technology is represented by the TrustZone and is deeply studied, and the feasibility of its application for the security of power distribution IoT is analyzed. Furthermore, the TrustZone-based security management and control architecture for power distribution novel IoT equipment is proposed, and its integrity measurement and trusted network connection process are analyzed. Finally, the security of this architecture is analyzed briefly.