bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research and Analysis on Fire Simulation of Underground Pipe Gallery Based on Pyrosim Software
Authors: Chen Yang , Liu Gang , Gao Hong 
Published: February 2022

Abstract
In order to analyze the influence of the abrupt section of the underground pipe gallery on the spread of smoke, this paper uses fire simulation software to establish a numerical model to study and analyze the pipe gallery with abrupt sections. The simulation results show that under the condition of working condition 2, the temperature of the pipe gallery increases and then decreases. The highest temperature is at 182s, and the highest temperature is 698.51°C; in the sudden change section, the smoke spreading rate decreases, and the smoke peak The surface presents a “convex” shape; due to the thermal effect pressure difference and the mechanical wind pressure difference, when the wind speed in the pipe gallery is 0-50s, the wind speed changes greatly; when the inlet wind speed is 1m/s, the wind speed in the pipe gallery will eventually Tend to be 2.5m/s.
Analysis of Data Exchange between BIM Design Software and Performance Analysis Software Based on Revit
Authors: Yang Ting , Xu Jinyi , Nie Xian 
Published: February 2022

Abstract
Performance-based analysis of buildings is a process of guiding the design process through simulation analysis in the early stage of engineering design, and it is an inevitable trend of BIM technology development. In the process of BIM forward design, it can effectively improve the efficiency of forward design. How to break through the data interaction barrier between design software and performance analysis software and effectively use BIM design software data for performance analysis is an urgent problem to be solved in the industry. Based on the Revit platform, this paper analyzes the methods and requirements of BIM data transmission, realizes the performance analysis of data conversion based on Revit through cases, and finally summarizes a set of prerequisites, methods and key points of development requirements based on secondary development. The research results will provide reference for the later development of data conversion plug-ins and other tools, and promote the development of BIM data collection and transmission.
Study on Optimal Operation of Boiler-assisted Air Source Heat Pump Heating System
Authors: Sun Yong , Liu Shuaishuai , Liu Yang , Chen Jing , Yang Yiwei , Xue Keli , Shi Yongjiang 
Published: February 2022

Abstract
An electric boiler assisted air source heat pump heating system is used in a residential heat exchange station in Shijiazhuang for heating. However, in the actual operation process, there is a problem that the heating demand cannot be met. This paper studies the heating system. The results show that the problems are mainly manifested in two aspects: on the one hand, the operation strategy of heat exchange station is unreasonable; On the other hand, because of the close arrangement of heat pump units, the array cold island effect is produced, which affects the heating operation. Put forward a reasonable operation scheme for two aspects, and provide a reference case for central heating operation of air source heat pump in northern China.
Synthesis of Hexagonal Gold Nanoparticles and Study of its Optical and Near-field Distribution Properties by Discrete Dipole Approximation
Authors: Ge Linlin , Tang Junqi 
Published: February 2022

Abstract
Anisotropic nanostructures with unique physical and chemical properties have been widely applied in optical, electronic, magnetic, and catalytic fields. This paper described the synthesis of hexagonal gold nanoplates (HAuNPs) by trisodium citrate and ascorbic acid. The optical and near-field distribution properties of hexagonal gold nanoplates were studied by discrete dipole approximation method. Simulation results showed that due to the shape anisotropy of HAuNPs, the optical properties of HAuNPs were significant differences between the horizontal orientation and vertical orientation.
Analysis of Microstructure and Performance of Laser Cladding WC-Fe316L Alloy on the Surface of 27SiMn Steel
Authors: Li Chuanzhu , Ni Yuji , Wang Mingdi , Lu Zheng , Zhang Pengcheng 
Published: February 2022

Abstract
In order to solve the problem that the hydraulic support column is affected by the sulfur and chlorine water vapor in the mine, the inner wall will inevitably have different forms of defects, such as surface wear and surface corrosion. The pure Fe316L cladding layer and the WC-Fe316L composite cladding layer with the hard phase WC mass fractions of 10%, 20%, and 30% were prepared on the 27SiMn steel substrate for hydraulic support column by homogenizing broadband laser head. The phase composition, microstructure, microhardness and wear resistance of four cladding samples were studied. The results show that the pure Fe316L cladding layer forms a good metallurgical bond with the substrat, the surface of the cladding layer has no crack defects, and the shape is good. The average microhardness of the pure Fe316L cladding layer is increased by 1.4 times compared with the 27SiMn steel base, and it is increased to 331.2HV0.5. At the same time, the wear rate of the pure Fe316L cladding layer is reduced by 30.8% compared with that of the matrix. The mass fraction of WC particles is 10 %, 20%, and 30% of the WC-Fe316L cladding layer’s microhardness is 1.6, 1.7 and 2.0 times higher than that of the 27SiMn steel matrix to 369.9HV0.5, 408.6HV0.5 and 481.6HV0.5, and each WC The wear rate of Fe316L composite cladding layer was reduced by 45.8%, 66.0% and 82.3% compared with the matri composite cladding layer. The addition of WC particles helps to strengthen the solid solution strengthening and fine-grain strengthening of the composite cladding layer, and the unmelted WC particles also strengthen the dispersion strengthening effect of the composite cladding layer.
Characteristic Curve Fitting Method of Wind Speed and Wind Turbine Output Based on Abnormal Data Cleaning
Authors: Han Bitong , Xie Hongbin , Shan Yu , Liu Ruichen , Cao Shengxian 
Published: February 2022

Abstract
The characteristic curve of wind speed and power reflects the output state of wind turbine, and its characteristics are helpful to the accurate prediction of wind power. With the improvement of wind turbine power generation technology and other engineering applications, the data collected by SCADA system contains a large number of outliers, which makes it difficult to accurately fit the wind speed power curve. Firstly, this paper analyzes the types and causes of outliers in the actual data of wind turbines. Then, an abnormal data cleaning method based on Tukey’s method considering the operation parameters of wind turbines is proposed to clean the data of 12 wind turbines. Finally, the new data are clustered separately in the wind speed range by K-means, and the wind speed power characteristic curve is fitted. Compared with the uncleaned data, this method can significantly improve the fitting accuracy of wind speed power characteristic curve.
Semantic Segmentation and Defect Detection of Aerial Insulators of Transmission Lines
Authors: Wang Shengli , Zhou Zhangpeng , Zhao Wenbin 
Published: February 2022

Abstract
Aiming at the problems of low accuracy and poor generalization ability of insulator defect detection in complex aerial images by existing insulator defect detection algorithms, the possibility of using semantic segmentation technology to simplify insulator features in complex images is explored. The semantic segmentation model DeepLabv3 is cascaded with the target detector yolov3 to realize the semantic segmentation of insulators in aerial images and the detection of defects. The experimental results show that the use of the strategy of semantic segmentation and target detection can increase the accuracy of insulator defect detection by 12.58%, which effectively improves the performance of the detection model.
PARS-NET: a novel deep learning framework using parallel residual conventional neural networks for sparse-view CT reconstruction
Authors: Khodajou-Chokami H. , Hosseini S.A. , Ay M.R. 
Published: February 2022

Abstract
Sparse-view computed tomography (CT) is recently proposed as
a promising method to speed up data acquisition and alleviate the
issue of CT high dose delivery to the patients. However, traditional
reconstruction algorithms are time-consuming and suffer from image
degradation when faced with sparse-view data. To address this
problem, we propose a new framework based on deep learning (DL) that
can quickly produce high-quality CT images from sparsely sampled
projections and is able for clinical use. Our DL-based proposed
model is based on the convolution, and residual neural networks in a
parallel manner, named the parallel residual neural network
(PARS-Net). Besides, our proposed PARS-Net model benefits from a
loss based on the geodesic distance to effectively reflect image
structures. Experiments have been performed on the combination of
two large-scale CT datasets consisting of CT images of whole-body
patients for different sparse projection views including 120, 60,
and 30 views. Our experimental results show that PARS-Net is 4–5
times faster than the state-of-the-art DL-based models, with fewer
memory requirements, better performance in other objective quality
evaluations, and improved visual quality. Results showed that our
PARS-Net model was superior to the latest methods, demonstrating the
feasibility of using this model for high-quality CT image
reconstruction from sparsely sampled projections.
Production and measuring methods and procedures in precision optical cavities production
Authors: Beneš Jiří , Procháska František , Rail Zdeněk , Tomka David , Pravdová Lenka , Číp Ondřej 
Published: February 2022

Abstract
This work presents the development of the production process of individual parts of the Fabry-Perot type laser resonator. It describes the acquired knowledge in the field of production of very precise optical standards, cavities, and lenses. In addition, it describes the measurement methods used in production. The work is intended for industry and science.
Remote data acquisition with wireless communication for a quad-GEM detector
Authors: Bhattacharyya R. , Sahu S. , Sahu P.K. 
Published: February 2022

Abstract
The advantages of remote data acquisition (DAQ) in
experimental setup are manifold. It is useful to store the time
series data continuously without human intervention. Moreover,
specific modification in the experimental setup for remote DAQ is
also beneficial to avoid proximity to the radiation zone in the high
energy physics experiments, and thus radiation exposure is
minimized. In this article, a novel method of DAQ is explored for
Gas Electron Multiplier (GEM) detectors employing HC-12 wireless
serial communication module following both SCPI and non-standard
protocols. Dedicated Laboratory Virtual Instrument Engineering
Workbench (LabVIEW) based software interfacing is also developed for
communication and control. As a proof of concept of the feasibility
of the proposed method, the typical gain of a quad-GEM detector is
estimated. Measuring instruments (a quad-scaler built in-house and a
commercially procured picoammeter) are interfaced with the wireless
transmission system for this purpose. Data transferred through
wireless communication are utilized for estimating the normalized
gain of a quad-GEM detector for a given interval of time. The
details of the design of the wireless communication system,
fabrication procedure, remote DAQ system, experimental arrangement,
and results are presented in this article.
Coupled mode of cloud, atmospheric circulation, and sea ice controlled by wave-3 pattern in Antarctic winter
Authors: Wang Yunhe , Yuan Xiaojun , Cane Mark A 
Published: February 2022

Abstract
This study examines coupled relationships among clouds, atmospheric circulation, and sea ice in Antarctic winter. We find that the wave-3 pattern dominates the leading covariability mode among cloud, atmospheric circulation, and sea ice. Both horizontal transport and vertical motion contribute to cloud formation, resulting in maximum cloud anomalies spatially between maximum meridional wind and pressure anomalies in the coupled system. The radiative effect of the clouds related to the wave-3 pattern can generate sea ice anomalies up to 12 cm thick in one month in the Amundsen Sea. It also strengthens the sea ice anomalies that are directly induced by low-level atmospheric circulation anomalies. In addition, the radiative forcing of the leading cloud mode in the lower troposphere is suppressed by the dynamic and thermodynamic effects of the circulation anomalies. These discoveries provide a better understanding of Antarctica’s interactive processes, and also offer physical evidence for climate model validations.
The utilization of gypsum board and fly ash waste on brick in terms of compressive strength to reduce environmental pollution
Authors: Taveriyanto A , Andiyarto H T C , Saefullah M V , Haliza M P 
Published: February 2022

Abstract
The utilization of gypsum board and fly ash waste as alternative materials in making bricks is one of the efforts to reduce the amount of industrial waste in the construction sector, namely gypsum board and fly ash waste. The use of gypsum board and fly ash waste cannot be separated from relatively large amount and the potential to pollute the environment. The pozzolanic properties contained in fly ash combined with gypsum board waste are expected to improve the quality of the bricks. The purpose of this study was to determine the value of the compressive strength of bricks. The method used is an experimental research method in which variations in the composition of gypsum board and fly ash waste are 0% and 0%, 5% and 25%, 7.5%, and 27.5%, and 10% and 30% of the weight, respectively. cement using a sample size of 37 x 10 x 15 cm. Based on the results of the study, it showed that the compressive strength test of the gypsum board and fly ash waste bricks had met the quality requirements according to SNI 03-0349-1989 with the average compressive strength value for each composition of 42.37 Kg/cm2, 73.04 Kg/cm2, 49.30 Kg/cm2, and 43.59 Kg/cm2.
Design and static testing of electric vehicle chassis trike front-wheel drive
Authors: Aryadi W , Setiyawan A , Kriswanto  , Rizky A 
Published: February 2022

Abstract
Compared to conventional vehicles, the advantages of electric vehicles are more significant acceleration, no exhaust emissions, making electric vehicles more environmentally friendly, minimal maintenance because there are not many components used in electric cars. This research method is used to develop the chassis design of an electric trike, and then the chassis design is analysed using Solidworks software. The chassis with a thickness of 2.4 mm weights 29.6 kg with a maximum value of stress, displacement, strain, and other factors. Safety as follows: 7,582 x 107 N/m2, 2,567 mm, 3,368 10−4 and 3.5, 2 mm thick chassis weighs 25 kg with maximum stress, displacement, strain, and safety factor values as follows: 1.079x108 N/m2, 3.160 mm, 3.981 10−4 and 2.5 then the chassis thickness of 1.6 mm weights 20.3 kg with the maximum stress, displacement, strain, and safety factor values as follows: 1.809 x 108 N/m2, 4.190 mm, and 9.388 10−4. Chassis with a thickness of 2 mm using a rectangular tube and ASTM A53 material has a safety factor value that is by the requirements and the maximum stress value on the chassis does not exceed the allowable stress value and weight.
Development of a power breaker system in small-scale wind power plants when there is high rotation (over speed)
Authors: Ananta H , Murnomo A , Isdiyarto  , Sunardiyo S , Pridayanto S B P , Nurmaulida I 
Published: February 2022

Abstract
In a wind power plant (hereinafter referred to as PLTB), rotation stability is needed, to protect the system from sudden rising and unpredictable wind speed. Large-scale PLTBs are already equipped with a braking system, unlike small-scale plants that are generally not equipped with a braking system. In order for the electricity supply to be guaranteed properly and for the system to be protected, it is necessary to make a control device that will monitor the rotation speed of the generator and turn off the electricity supply to the system should there be any rotation that exceeds the specified limit / over speed. The use of small-scale for household purposes is generally equipped with an electric power storage / battery and an inverter to convert DC electricity into AC electricity which is then used by consumers. This research uses the research and development approach, namely research that will produce an effective and efficient power breaker system as a function of creation and innovation in solving renewable energy problems. Result; the automatic power breaker suitable for use in small-scale wind power plant has been assembled and tested with good results and is ready for use.
Diesel engine performance test using solar-dex and biodiesel (B30) on power and torque
Authors: Setiyawan A , Novianto A , Afkar N B A , Chabib F , Amelia F R , Pratiwi I 
Published: February 2022

Abstract
Biodiesel as renewable alternative energy produced from vegetable and animal oils can be used to fuel diesel engines. Pertamina has officially release Biodiesel B30, which sells on fuel stations in Indonesia. The purpose of this study is to investigate the diesel engine performance on Solar-Dex and Biodiesel blend. Testing the performance of a diesel engine by mixing Solar-Dex and Biodiesel on power and torque produces different data and can be concluded: (1) Pure Solar-Dex without the addition of Biodiesel gives the lowest power yield of 49.55 kW, while the data fluctuates when adding Biodiesel and it is known that the most considerable average power occurs when a mixture of Biodiesel is 30% with 70 Solar-Dex and 40% biodiesel with 60% Solar-Dex which is 54 kW. (2) Pure Solar-Dex without the addition of bio-diesel gives the lowest torque yield of 120.45 Nm, while the data fluctuates when adding Biodiesel and it is known that the most considerable average torque occurs when a mixture of 20% bio-diesel with 80 Solar-Dex is 122, 8 Nm.
Quality test of current catfish nuggets in improving children’s health
Authors: Widayani S , Darmi T , Agustina T , Astuti R M , Elvita D , Aini N , Dewantara A 
Published: February 2022

Abstract
The covid-19 pandemic had the greatest impact on public health. The pandemic period has not ended and is still haunting the community. To maintain life, people must continue to do activities in meeting the nutritional needs of their families to be healthy so as to avoid the covid-19 virus. The impact of covid-19, more than 20% of children under five are malnourished. The pandemic condition has stirred and stirred the hearts of the research team to try out today’s nutritious processed food for children to improve their health. It is suspected that the provision of food can contribute to the protein sufficiency of children under five years old. Hope that adequacy consumption of nuggets can improve health because they are used as snacks or side dishes. Therefore, the quality test of nugget products is very necessary. The research objectives were to: 1) study the quality of nuggets, and 2) determine the health level of children under five. Completely randomized design (CRD) method for product quality. Pure experiment with randomized control trial design on children under five in Gunungpati area purposively on nugget intervention was done. Anamnesis method was carried out to explore children’s health and anthropometry with TB/U index to determine nutritional status. The study used 10 semi-expert panellists and 30 children under five years old. The results showed that nuggets were widely liked by children. Catfish nuggets can improve the health of children (p<0.05).
Natural food colourant of beetroot skin (Beta vulgaris L): characterisation study
Authors: Paramita O , Ansori M , Kusumastuti A , Fatimah N 
Published: February 2022

AbstractThe culinary industry is now growing, where the use of food colourant is widely used as an additive. To produce attractive colours in food, many manufacturers use synthetic colourant. The use of synthetic colourant will endanger health because synthetic colourant contains heavy metals. Supports UNNES vision, which is to become a conservation-minded university. In this study, the theme of the use of waste, especially fruit skin waste, as a natural colourant that is safe for health. The types of natural colourant that are often used for colourant are betacyanin. Fruit skin waste contains a lot of natural colourant, including beetroot skin. The results showed that the appropriate extraction method was the maceration method with the results for beetroot colourant resulting in the most optimal water content, antioxidant content and colour in the dye using a single solvent in the form of Ethanol.
Preparation and characterization of binahong (Anredera cordifolia) leaves extract-based liquid hand soap
Authors: Megawati  , Imani N A C , Fardhyanti D S , Astuti W , Hadikawuryan D S 
Published: February 2022

Abstract
The need for hand soap is increasing along with the increase of public awareness to maintain cleanliness and health. Commercial hand soaps are made from various chemical mixtures which often give side effects in the form of allergies in people who have sensitive skin. The production of soap with natural ingredients can be a way to solve these problems. In this paper, we report an observational study of the effect of adding binahong leaf oil extract, which is known to have antiseptic properties and is often used as an itching remedy, on the characteristics of liquid hand soap. The research was carried out with the steps of preparation of binahong leaf, binahong leaf oil extract, and production of soap based-binahong leaf extract oil with various concentrations of mixing ingredients. The analysis carried out in this experiment were the analysis of physical and chemical properties as well as the effectiveness of the soap against bacteria after the use of the liquid hand soap. The addition of binahong leaf extract oil in the liquid hand soap can increase the antibacterial properties of the liquid hand soap and has the potential to be used as a soap that is safer for daily use.
Ternary liquid-liquid equilibrium for eugenol + tert-butanol + water and eugenol + 1-octanol + water systems at 303.15 K and atmospheric pressure
Authors: Sucipto R K H , Kuswandi K , Wibawa G 
Published: February 2022

Abstract
The objective of this work was to determine ternary liquid-liquid equilibrium for eugenol + tert-butanol + water and eugenol + 1-octanol + water systems at 303.15K and atmospheric pressure. The experimental apparatus was 25 mL equilibrium cell equipped jacketed water connected to water bath to maintain equilibrium temperature at constant value. The procedure of this experiment was conducted by inserting mixture of eugenol + tert-butanol + water and eugenol + 1-octanol + water systems at certain composition into equilibrium cell. The solution was stirred for 4 hours and then was allowed for 20 hours in order to separate aqueous and organic phases completely. The equilibrium compositions of each phase were analysed using gas chromatography. The experimental data obtained in this work were correlated with NRTL and UNIQUAC models giving root standard mean deviation of 1.1% and 1.5%, respectively for eugenol + tert-butanol + water system and that of 2.8 % and 3.1%, respectively for eugenol + 1-octanol + water system. 1-octanol which has better capability than tert-butanol as a solvent for eugenol.