bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel LLC Resonant Converter Circuit-Input Parallel Output Series Subside Resonant LLC Resonant Converter
Authors: Yu Ting , Chen Xikun , Wu Dongjing 
Published: February 2020

Abstract
At present, LLC resonant converters are mostly used in step-down situations. The reason why LLC resonant converters are not used in high step-up situations is that parasitic parameters caused by high turn-to-turn ratio of transformers affect the circuit and the large current stress of switching devices and resonant components on the input side. In this paper, a new type of LLC resonant converter circuit, i.e. input parallel output series subside resonant LLC resonant converter, is designed. It can not only reduce the current stress borne by the switching devices on the input side and the resonant components, but also reduce the turn-to-turn ratio of the transformer under the same output voltage. Therefore, it can be used in boost occasion to output high voltage. In this paper, a new type of circuit is used in high boost situation, and the final output is stable 2KV high voltage.
Study on Method of Extracting Circle of Complex Objects Based on 3D Scanning
Authors: Zhang Yansong , Li Mingheng , Liang Xiaoyu 
Published: February 2020

Abstract
This paper proposes a method for extracting information about circular holes for complex objects with cylindrical apertures which base on special 3D scanning platform. After scanning the object, the point cloud is sliced after fitting the plane using the eigenvalue method. Aiming at the slice data, a point cloud segmentation extraction algorithm is proposed. The experimental results show that the system can effectively control the aperture extraction error and broaden the types of detectable parameters.
New Eighteen-sector Direct Torque Control Based on Duty Ratio Modulation
Authors: Wu Zhonghao , Zhou Jiemin , Zheng Gang , Li Tao , Zhu Zihan 
Published: February 2020

Abstract
In the traditional direct torque control (DTC) of permanent magnet synchronous motor (PMSM) system, the ripple of stator flux linkage amplitude and electromagnetic torque at the steady state is large. The unbalanced effect of active voltage vectors on stator flux linkage and torque control is analysed. Based on the idea of sector subdivision, combined with the six new active voltage vectors added by the three-level inverter, a new eighteen-sector DTC method is proposed to improve the control effect of voltage vectors. For the overcompensation problem caused by the voltage vector acting in a whole sampling period in DTC, the duty ratio modulation (DRM) method is used to reduce the torque ripple. Compared with the traditional DTC, the effectiveness of the proposed new control strategy for reducing the ripple of stator flux linkage and electromagnetic torque is verified.
Economic analysis of thermal power units operating under unconventional conditions
Authors: Ge Weichun , Liu Ziyang , Dong Fang , Wang Shunjiang , Chen Rong , Cui Di 
Published: February 2020

Abstract
In the case of deep peak shaving of thermal power units, it can absorb more photovoltaics and wind power, and also reduce the efficiency of thermal power plants and increase the environmental cost of society. This paper analyses the thermal power units under unconventional conditions from several influencing factors. The economics of operation, and innovative consideration of the current on-grid price and the latest government peaking subsidy factor. Firstly, according to the operating state and energy consumption characteristics of thermal power units, the peaking process is divided into conventional peaking, no oil depth adjustment and oil injection depth peaking, and the main factors affecting the deep peaking capacity of thermal power plants are analysed. The peaking energy cost model of thermal power units at different stages, and the actual power plant as the research object, the simulation results under different scheduling strategies are given. The results show that it is the most economical to increase the peaking depth of the unit to 54% of the rated capacity. The research results will provide a reference for better consumption of new energy.
Design of power tester for HPLC power line carrier communication module
Authors: Yu Minqi , Tang Yun , Huang Rui , Liu Mouhai , Yang Maotao 
Published: February 2020

Abstract
The current equipment used to test the power consumption of power line carrier communication modules not only has low dynamic power consumption, but also fails to meet the accuracy requirements for AC power tests. Based on a careful analysis of the key technologies of the dynamic power test of the communication module, this paper designs a power tester. This paper introduces the working principle of the power tester, discusses the corresponding circuit design scheme from two aspects of DC power consumption and AC power consumption, and analyzes the calculation methods of the two in detail. Finally, the test results of each test system are compared and analyzed. The power tester can achieve higher accuracy data testing.
Research on An Improved Cluster Average Clock Synchronization Method Based on ACATS Algorithm
Authors: Wang Shunjiang , Cao Lina , Lv Xuming , Cui Di , Gao Ming 
Published: February 2020

Abstract
At present, the real-time data of electric power measurement are not the same cross-section data, which have a large error and affect the analysis effect of various advanced application software. When the power grid fails, such analysis results may cause decision-making errors, thus threatening the safe and stable operation of the power grid. The ACATS algorithm is adopted in the invention, taking into consideration the phase offset, frequency drift and random delay in the process of information transmission. Inspired by the algorithm, the monitoring idea is used to improve the local average clock synchronization method of the nodes in the cluster in the algorithm, reducing the number of information exchanges required in the same step process of the nodes in the cluster, and taking into account the phase offset, frequency drift, and The random delay in the process of information transmission is of great significance to the practical network.
Optimization design and analysis of classroom light grid
Authors: Hao Bin , Cheng Min , Li Xiangfeng , Zhang Yini , Zhao Chenyu , Wang Chuanxi , Shan Bingrui , He Xiaoyang 
Published: February 2020

Abstract
Today’s classroom lamps are mostly aluminium-plated grille lamps with plastics, and most of the grids are regular rectangles or squares. According to the standard, the common grid is optimized. By increasing the shading angle of C0°-180° and reducing the shading angle of C90°-270°, it can reduce the glare and achieve the classroom light environment while achieving good light extraction efficiency. In this paper, through mathematical model analysis, I use SOLIDWORKS, tracepro, DIALux for modelling, ray tracing and classroom light environment simulation, it is verified that the grid designed in this paper has a great improvement in glare control compared with common grids.
Research on Safety Quality Credit Evaluation System of Power Construction Enterprises
Authors: Yang Bo , Li Hongbin , Xie Huan , Zhu Rong , Zhao Lei , Liu Anchang , Yu Tong , Fang Lie 
Published: February 2020

Abstract
In accordance with the guidelines for the construction of the national credit system and the demand for construction safety management in the power industry, this paper explores the establishment of a safety evaluation credit evaluation system for electric power construction enterprises by applying the credit evaluation index system and the evaluation criteria as the core, so as to lay the cornerstone to ensure quantitative output credit scores and qualitative output credit ratings. To that end, the paper further proposes the application scheme of safety quality credit evaluation system in terms of organizational security, application mechanism and management control measures, thereby contributing to the improvement of Safety quality management level for electric construction enterprises.
RETRACTED: How to Safely and Efficiently Perform Big Data Computer Information Processing
Authors: Hong Yunguo 
Published: February 2020

Abstract
In the era of big data, to ensure information security and avoid information leakage, it is necessary to fully handle computer information security. We should focus on improving computer hardware and software equipment, in order to improve network virus defense systems, and continuously improve data collection technology, communication technology, storage technology and security management technology. This article will systematically discuss how to safely and efficiently perform big data computer information processing and present personal insights.
A novel method of IoT wireless sensor nodes management based on OID technology
Authors: Chen Junhua , Shangguan Pengfei , Zhang Xia 
Published: February 2020

AbstractWith the continuous development of Internet of Things (IoT) technologies, massive wireless sensor nodes are deployed to construct several local wireless sensor networks over the world, which bring a great challenge to enormous wireless sensor nodes management. In this paper, a mechanism of sensor node managed object identifier (OID) is designed to merge classic SNMP MIB managed object identifier with sensor node identifier. Then, the framework of classic SNMP manager and agent is modified and optimised. Finally, a method for sensor nodes remote managing, which adapts to heterogeneous IoT network such as Internet linked with industry wireless network etc., is proposed to achieve hierarchical addressing and unified management of massive sensor nodes. The experimental result demonstrates that the proposed method satisfies the unified managing demand of a tremendous amount of sensor nodes in large-scale IoT network scenario by configuring and controlling sensor nodes.
Cluster Wind Power Uncertainty Model and Operation Simulation Method
Authors: Li Xuxia , Hu Yingying , Wang Yao , Deng Jiaojiao 
Published: February 2020

Abstract
The rational modelling of wind power uncertainty is the premise of relevant analysis and decision-making. The uncertainty, intermittent nature of cluster wind power and the spatial correlation between different wind farms are the key factors to determine the impact of cluster wind power on the power system. The rationality of the wind power uncertainty model will determine the validity of the wind power uncertainty analysis and decision-making model and the credibility of the analysis conclusions. The development of wind power in China is very rapid, but the accumulation of wind power and meteorological statistics is insufficient. The research on the uncertainty of cluster wind power output is not deep-going. For this reason, the wind power uncertainty model is taken as the entry point. This paper will establish the uncertain model of wind power and its simulation method. This method can generate time series of wind farm output in accordance with wind power uncertainty characteristics, and effectively analyze the overall output characteristics of large-scale cluster wind power to be planned in the future, which provides a new idea for studying the impact of wind power on future power systems.
A Method for Constructing Software and Hardware Comprehensive Reliability Test Profile of Y Model
Authors: Huang Maosheng , Yu Min 
Published: February 2020

Abstract
In order to deal with the problem of software intensive equipment reliability evaluation test, this paper analyzes and compares the characteristics and shortcomings of current reli-ability evaluation test and software test, and puts forward the integrated reliability evaluation test technology of software and hardware. Through the design of software profile based on re-liability comprehensive test and matching of software and hardware profile based on task pro-file, the test is carried out by using data automatic loading, and the test evaluation technology of fuzzy software and hardware fault classification is used to evaluate the test. Through the application test of a certain type of airborne equipment, it is shown that the reliability identification test technology of software and hardware integration can effectively expose the fault of software-intensive equipment, which is in line with the requirements of the current development of equipment and weapons, and has a good application prospect.
A Simple Smart Shop Floor Paradigm for Industry 4.0
Authors: Yang Yan , He Xiaohui , Lu Peng , Wang Ziqi , Tang Shixiong 
Published: February 2020

Abstract
This paper illustrates the needs and challenges of the smart shop floor in intelligent manufacturing and combines with insights from the field of current MES system needs, advantages and drawbacks, and describes the cloud platform enrich production service system. In a word, recent advanced technologies has paved way for a complete and systematic implement of it. the smart shop floor is in the initial stage of development in factory. At present, there is an urgent need for a viable paradigm of smart shop floor as a guideline. By integrating all relative applications and solutions, Chongqing Guangshu Robot Co., Ltd has designed a simple enough paradigm to adopt the Industry 4.0, within which all related information is closely monitored and synchronized between the physical shop floor and the network computational space.
Computer Simulation Study on Dynamic Recrystallization Mechanism of Magnesium Alloy during Compound Deformation
Authors: Wang Lingyi , Wang Zhongtang 
Published: February 2020

Abstract
The evolution law of dynamic recrystallization structure in the process of indentation-flattening compound deformation technology (IFCDT) of AZ31 magnesium alloy was studied. A computer simulation method for dynamic recrystallization structure evolution process was proposed based on cellular automata theory (CA method). Firstly, the material model of cellular automata method is established. Secondly, the performance parameters and compound deformation parameters of AZ31 magnesium alloy were determined. Finally, the dynamic recrystallization process of AZ31 magnesium alloy during compound deformation was analyzed. During the compound deformation of AZ31 magnesium alloy, the dynamic recrystallization mechanism is initial state, nucleation of new grains, generation of new grains, growth of new grains, continuous growth of new grains, and covering of original large grains. Compared simulation results with experimental results, the maximum relative errors is 15.4%. It is proved that cellular automaton method may be used to predict the microstructure evolution of AZ31 magnesium alloy during indentation-flattening compound deformation.
Design and research of elevator control system based on PLC
Authors: Han Xiaohu 
Published: February 2020

Abstract
With the gradual popularization of high-rise buildings in China, the elevator control system has also achieved rapid development, and the relevant design is constantly improving and optimizing. For the elevator system, the advantage of PLC control system is that it can use the elevator control system of PLC, and its later maintenance cost is lower. In this paper, the hardware and software design of the elevator control system based on PLC are tested, and the operation of the implementation process is carried out.
Applications Research of Electrical Control Circuit Design
Authors: Zhang Hong 
Published: February 2020

Abstract
Electrical control circuit design plays an important role in electrical engineering projects. Good design of electric control circuit will be beneficial to the orderly operation of power system. Unreasonable design of electric control circuit will hinder the normal operation of power system. This paper mainly discusses the importance of electrical control circuit design, and points out that electrical control circuit design should follow the principles of generality, stability and economic. This paper also discusses the design methods and key points of electrical control circuit, and gives the design ideas of down lead lines and distribution boxes, which provides references for the relevant researchers.
The influence of friction component buckling on the vibration characteristic of the wet clutch
Authors: Zhang Qianqian , Chen Man , Xue Jiaqi , Ma Biao , Li Huizhu 
Published: February 2020

Abstract
The multi-disc wet clutch is widely used in high-power vehicles and large construction machinery due to its capacity for high torque transfer and compact efficiency. However, the early-stage failure such as the buckling of the friction disk is hard to detect since its external performance is not obvious, which can impair the reliability of the system largely. This paper presents an online fault diagnosis method for wet clutch based on vibration signal analysis to detect the deformation of the friction components. A bench test is designed to acquire the vibration signal of the clutch pack with four different fault levels. Then an online monitoring method for clutch early fault based on wavelet analysis and EMD algorithm is proposed. The analysis shows that the method can extract the abnormal vibration characteristics and shock signals caused by the local deformation of the clutch pair, which can be feasible in the engineering practice of online fault diagnosis for multi-disc clutch early failure.
A Thermal Casing Connection Test for Geothermal Wells in KS ORKA
Authors: Sungkar M Fahmi , Simanjuntak Hendra , Isa Boga , Ashadi Ashadi , Hartono Yudi 
Published: February 2020

Abstract
Determining the proper casing and its connection for geothermal wells is very crucial. The casing and its connection experience various loads not only during drilling operations but also during production operations. In order to determine the suitable connections, various loads to the casings and connection during drilling and production are simulated. This paper presents the testing protocol used to qualify the Premium NS-CC connection used by KS ORKA (Sorik Marapi and Sokoria), a geothermal operator in Indonesia on the 13 3/8” 68# L80 Type 1 production casing. The testing protocol is referred to the ISO/PAS 12835:2013, Thermal Well Casing Connection Evaluation Protocol (TWCCEP), with some abbreviation. The test was conducted using 2+2 casing specimens at PT Citra Tubindo testing facility in Batam, Indonesia. Total of 30 thermal load cycles at the temperature range of 35° – 290°C have been used to anticipate geothermal well life time as requested by KS ORKA drilling team. This paper summarizes the testing process from beginning to the end and the successful testing result of the NS-CC Premium casing connections that are used in KS ORKA (Sorik Marapi and Sokoria).
40 Quality Improvement Project: A Pilot Study of A High-Risk Podiatry Service Model Introduced Into A Care Home
Authors: Roe N 
Published: February 2020

Abstract

Introduction
This report aims to demonstrate how a podiatry service quality improvement project into a residential care home was implemented and why it was needed. Risk of foot ulceration increases in those with age, neuropathy, peripheral vascular disease and immobility. In 2013 the Sunderland Care Commissioning Group piloted, through the readmission scheme, a podiatry service providing specialist care into 11 care homes in the Coalfield’s locality of Sunderland, which are a mixture of both nursing and residential homes. The service provides, foot care for all residents and prevention strategies for those classed at risk of developing foot ulceration and to provide specialist wound care interventions for residents presenting with foot ulcers into each care home in the Coalfield’s locality. There are financial constraints to rolling out the Coalfield’s model to the further 36 care homes in Sunderland. Therefore, a new model was explored. This is a high-risk model only, piloted in one care home.

Methods
Driver diagram was used to define key problems, activities required to deliver improvement. Fish bone diagram was used to establish the route cause analysis. The plan do study act (PDSA) cycles were used to pilot the interventions at the study site to ensure effective small change The Comb-B Behaviour Change Wheel was also included to ensure that interventions undertaken were sustainable by identifying the behavioural change required.

Results
There were no pressure injuries identified at post-intervention, this was a significant improvement from baseline. Staff had referred three grade 1 pressure injuries and one foreign body, one foot pain and two trauma ulcers during the intervention, showing a 300% increase in reported grade 1 pressure injuries.

Conclusions
This quality improvement project has demonstrated a person centred, evidence based, older person service delivery for sustainable future that embeds a multi-disciplinary team to the high-risk podiatry model of service. It has shown that behavioural change has occurred with small change interventions. It has used the robust methodology of PDSA to effect this change and allow for a clear report to be able to articulate the benefit.
44 Wirral's Teletriage Service
Authors: Whittle E , James E , Smith A , Highton M , Shaikh S , Stone B , Thompson J , Orr T , Hogan I , Stokes S , Langton J , Chu C , Orr T , Hogan I 
Published: February 2020

Abstract

Introduction
The Wirral Teletriage Service provides non-urgent clinical support to Wirral Care Homes in order to help avoid unnecessary hospital admissions for their residents. It also aims to provide quicker access to clinical assessment than via NHS 111 and to provide this care in the patient’s residence wherever possible.

Methods
Care homes call the Teletriage service when they have concerns about the health of one of their residents. The Teletriage nurse undertakes a clinical assessment of the resident remotely via Skype. Care Homes have been provided with a secure NHS email address to facilitate secure sharing of data. They have also been provided with iPads and training for their staff. After being assessed by Teletriage, residents are signposted to the most appropriate care pathway for their needs.

Results
76 Care Homes have signed up to the service. On average, the Teletriage Service receives 300-400 calls a month. In an 18 month period, the number of calls to NHS 111 have reduced by 76%. Out of all the calls to Teletriage, 22% of patients were managed by the Teletriage team with no onward referral, 57% were managed via community services e.g GPs, Community Geriatricians, and 10% were referred to the ambulance service. Emergency Health Care Plans (EHCPs), Preferred Priorities of Care and EOL (End of Life) wishes are taken into account.

Conclusions
The Teletriage project has reduced the number of phone calls to NHS 111 and the ambulance service, and subsequently has reduced the number of patients conveyed to hospital by 12%. The Teletriage nurses work very closely with various community services as well as GPs, NWAS and Community Geriatricians. The ongoing training and education provided to the Care Home Staff means that overall there has been good engagement with the project from the majority of the Wirral Care Homes.