bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lightweight Design of Hinge Based on Topology Optimization
Authors: Gao Han , Xu Lei , Hu Yuanhao , Chen Shuliang 
Published: January 2022

Abstract
The topology optimization method has become an effective method to solve the structural optimization problem due to its advantages in weight reduction, material saving and cost reduction. Hinge is a commonly used connector with wide application occasions, large demand, and high reliability requirements. It needs to meet the strength requirements while carrying out lightweight design. In this paper, the refrigerator hinge is taken as the object, the topology optimization of the hinge is carried out by introducing manufacturing process constraints, the model is reconstructed according to the result of the topology optimization, and finally the reconstruction model is analyzed by finite element. The results show that under the premise that the hinge meets the requirements of strength, its own weight and maximum stress are reduced, and the weight reduction rate reaches 13.1%, which achieves the purpose of lightweight hinge design. This method can provide a basis for the evaluation and optimization of the initial design scheme of the hinge, and can also provide a way of thinking for the optimization of other structures.
Intelligent manufacturing of sanitary ceramics - Probe into dynamic mechanism of bottom mold extraction
Authors: Zhang Xi , Wen Min , Lv Huachao , Zhong Bo 
Published: January 2022

Abstract
Firstly, mention bottom and motivation mechanism in intelligent manufacturing sanitary ceramics society demand. Secondly, analysis extraction process, put forward the proposals mention bottom die extraction dynamic mechanism and measures for its implementation, again on the dynamic mechanism of the key position and function of the analysis shows that the introduced its structure, functions and features, its working principle. Finally, the feasibility and superiority of power mechanism are proved.
Manufacture Technologies for Magnetoactive Deployable Structures
Authors: Song Ruiyu 
Published: January 2022

Abstract
Nowadays, smart materials like magnetoactive materials are utilized to manufacture deployable structures, enabling these mechanisms to self-fold under external magnetic fields. Fabrication of magneto-sensitive deployable structures have evolved from using discrete magnets to applying 4D printing-an emerging technique. The new printing concept expands the application area of magnetoactive mechanisms because properties of them can be predetermined and precise arrangement of magnetic domains are realized. This review summarizes fabrication technologies for magnetoactive deployable structures, including 4D printing.
Force Balance of Particles in Water During Ultrafiltration Membrane Process
Authors: Yin Hao 
Published: January 2022

Abstract
Membrane filtration is vital in our daily lives to extract fresh water from contaminated water. However, membrane filtration is suffering from fouling, which is induced by accumulations of particles on membrane surface. Due to the hydraulic field and electrical field (from functional groups of membranes) near membrane surface, particle will be exerted by different forces. The intermolecular forces such as the Lateral lift force, Brownian force, shear-induced force, Van Der Waal force and electrostatic repulsion force may affect the fouling process, and the water flux inside the system cab exert permeance drag force to the particles near the surface of membrane. In order to figure out the forces that may affect the filtration process, a model was established about the filtration process. In the model, the velocities of the each forces are listed and calculated in this paper. From the analysis, the relations between the particle velocities, which represents the filtration efficiency, and the forces, such as lift or shear forces, are well illustrated. This article shows the importance of potentially understanding the fouling process and providing insight of fouling mitigation for the membrane filtration process.
Blocking Energy-Loss Pathways for Efficient All-Fluorescent Solution-processed Organic Light-emitting Diodes by Introducing Polymer Additive
Authors: Zhang Ming , Zheng Cai-Jun , Wang Kai , Lin Hui , Tao Si-Lu , Zhang Xiao-Hong 
Published: January 2022

Abstract
Organic light-emitting diodes (OLEDs) based on thermally activated delayed fluorescence-sensitized conventional fluorescence dyes (TSCF) offer the possibility of realizing an ultimate high efficiency and long-term stability devices through solution process. However, the currently reported TSCF-OLEDs easily suffer the harmful Dexter energy transfer (DET) process and aggregation induced quenching (ACQ) effect. Herein, we proposed a new strategy to suppress the DET and ACQ effect by introducing a polymer material into TSCF system, achieving high efficiency and stability of TSCF-OLEDs. The introducing polymer material into TSCF system can not only increase the intermolecular distance between TADF matrix and traditional dyes, further restraining the harmful DET process and ACQ effect, but also improve the solubility and film quality of all TSCF system. Based on this fact, the 2-(2,7-di(9H-carbazol-9-yl)-9,9-dimethylacridin-10(9H)-yl)dibenzo[b, d]thiophene 5,5-dioxide (2Cz-DMAC-BTB) sensitizing 2,8-Di-tert-butyl-5,11-bis(4-tert-butylphenyl)-6,12-diphenyltetracene (TBRb) solution-processed device Y2 with poly ethlene oxide (PEO) was firstly fabricated and exhibits a higher maximum EQE of 6.6 % and longer half time (LT50) of 64 hours comparing to that of Y1 without PEO. Subsequently, the TSCF-solution-processed device R2 with PEO shows a maximum EQEmax of 13.1 % and LT50 of 107 hours. These results adequately demonstrate the validity of our proposed strategy and provide a new route for developing more efficient all-fluorescent solution-processed TSCF-OLEDs.
Study on graphitization of anthracite and petroleum coke catalyzed by boric acid
Authors: Yang Jinlin , Xu Wenzhe , Xu Shuo , Ma Shaojian 
Published: January 2022

Abstract
Graphite carbon materials have excellent properties and are widely used. Traditional artificial graphite has high energy consumption and high cost, so reducing the energy consumption of artificial graphite has become a research hotspot in recent years. The effect of boric acid on the graphitization of anthracite and petroleum coke was studied, and the parameters such as boric acid content, roasting temperature and holding time were investigated in this paper. The results show that the optimum dosage of boric acid for graphitization of anthracite is 7.5%, and that of catalyst for graphitization of petroleum coke is 5%. The effect of roasting temperature on the graphitization of anthracite and petroleum coke catalyzed by boric acid is remarkable. The best temperature is 1400°C. Roasting holding time has positive effect on the graphitization of anthracite and petroleum coke catalyzed by boric acid. The best roasting holding time is 120min. Under the optimal experimental conditions, the highest graphitization degree of anthracite and petroleum coke catalyzed by boric acid are 23.58% and 23.56%, respectively. The effect of boric acid on anthracite is better than that of petroleum coke.
A Study Focusing on the Preparation and Application of New-mode Electrode Materials for Water Hardness Measurement
Authors: Xie Guoli , Ma Yue , Lu Peng , Cao Qiguang , Li Song , Chen Hongmei , Xing Linnan , Zheng Mingyue , Yang Dongqing , Ming Lang 
Published: January 2022

Abstract
This paper aimed to study the calcium ion selective electrode, based on using PVC as the electrode carrier and didecyl calcium phosphate which was synthesized from decanol, phosphorus oxytrichloride, pyridine and calcium chloride as the electroactive substance. This paper mainly focused on the study and the fabrication process of both the electrode diaphragm and electrode, with conducting the performance test of the newly developed electrode. The results showed that the response time of the developed water hardness sensor was 2-5 s, which had good response characteristics and was suitable for fast and portable testing of water hardness in environmental testing. There was no significant difference between this water hardness sensor method and the national standard method. When the water temperature varies between 10 and 60 Centigrade, the influence of temperature on the data of the water hardness sensor was very small, and the water hardness sensor had good stability to test the temperature change.
Effect of carbonization temperature of carbon felt on removal of methylene blue: carbon felt as the cathode of Electro-Fenton system
Authors: Chai Changsheng , Xu Hu , Zhao Chengwen , Guo Hongkai , Li Na , Lin Xueyong , Xu Weijun 
Published: January 2022

Abstract
The surface properties of carbon fiber have been regarded as the critical factor for 2-electron oxygen reduction (ORR) and degradation of organic pollution in Eletro-Fenton process. The aim of this work was to investigate the effect of carbonization temperature on the performance of carbon felt as the cathode for degradation methylene blue (MB). This work was adopted carbon felt that obtained at the carbonization temperature of 1050, 1600, 2000 °C respectively, comparison of the electrogeneration of H2O2 and MB removal rate at pH 3. Compared with CF-B and CF-C, high-yield H2O2 production (38.9 mg L−1, 1.3 mg h−1 cm−2) and high-degradation rate of MB (96.7%, kinetics constant: 0.0623 min−1) in CF-A system have been achieved. The hydrophilic was carried by water contact angle test, indicated that the inert of surface: CF-C > CF-B > CF-A. The disorder degree of surface was characterized by Raman spectroscopy, and in combination with CV and LSV tests, revealed the ORR catalysis properties of different types cathode. This study suggested that lower temperature of carbonization was in favour of carbon felt as the Electro-Fenton cathode to degenerate organic pollution.
Study on mildew of polycarboxylic acid water reducing agent
Authors: Lai Huazhen , Chen Hao , Lin Zhiqun 
Published: January 2022

Abstract
In practical applications, polycarboxylic acid water-reducing agents are susceptible to microbial contamination and mildew. Through the mold test on the polycarboxylate water-reducing agent with different storage time, the effect of reaction temperature, chain transfer agent type, solid content, compound components and preservatives on the mildew of the polycarboxylate water-reducing agent is studied. The research results can provide technical guidance for long-term storage of polycarboxylic acid superplasticizer and have important application significance.
Study on compression load and energy absorption characteristics of glass fiber honeycomb tube
Authors: Wu Linhua , Zhang Zhendong , Zhang Qi , Le Guigao 
Published: January 2022

Abstract
In terms of the deficiency of the existing research on the compression load and energy absorption characteristics of composite structures, a glass fiber honeycomb tube with different thickness and different cell number was proposed. The static compression test was carried out by universal testing machine. The results show that the failure forms of honeycomb tube are fiber fracture damage, fiber layer delamination and their composite forms. The peak compression load and total energy absorption increase with the increase of cell number and thickness, and the specific energy absorption increase only with the increase of thickness. The compression peak load of single-cell honeycomb tube with wall thickness of 0.4 mm is the smallest, which is 2.21 KN; and the compression peak load of eight-cell honeycomb tube with wall thickness of 1.2 mm is the largest, which is 91.48 KN. The corresponding total energy absorption is 25.16 J and 2257.57 J respectively; the corresponding specific energy absorption is 8.38 J/g and 45.06 J/g respectively.
Calculation and analysis of sea-fastening support and welding strength of topside module
Authors: Ma Yuying , Chen Guang 
Published: January 2022

Abstract
Marine structures are usually built on land as a whole modular, using barges to transport to the designated area for installation. This paper presents the sea-fastening design methodology and results of the topside module which is to be transported by self-propelled barge. The combination of its self-weight, wind load and barge acceleration in waves will act on the topside module and barge in the process of marine transportation, this paper mainly analyzes and calculates the temporary support frame and the grillage members of the topside module by SACS software. Then the top plates and the base plates transmit the member end forces of sea-fastening grillage members taken from SACS output, in order to ensure the strength, the bracket plates are welded to the grillage columns, braces and the bottom of temporary support frame. The strength of all fillet welds shall be checked.
Simplified Model and Simulation Analysis of Ferrite Hollow Bead Coating Based on Computer Aided Design Method
Authors: Hou Yong-shen 
Published: January 2022

Abstract
When ferrite hollow beads were made into coating materials, because ferrite hollow beads had hollow internal structure and conductive and magnetic ball wall, ferrite hollow beads have typical resonant ball characteristics in structure. The absorbing coating composed of numerous ferrite hollow beads could be considered as a resonant absorber. With the rapid development of information technology, especially computer technology, the introduction of computer simulation technology can often save experimental costs and reduce the blindness of experiments. Therefore, in order to comply with this development trend, this chapter will establish the absorber model of ferrite hollow bead coating based on HFSS (high frequency simulator structure) electromagnetic simulation software, and qualitatively analyze the relationship between the thickness of ferrite hollow bead coating and the resonant frequency of absorber and the distribution state of electromagnetic field inside the coating through the of computer simulation software.
Research on linear parameter varying modeling method of ball screw feed system
Authors: Liu Minghao , Sun Xuan , Zhang Baixing , Qi Kaixuan , Lv Xiangyu , Shi Chenglin 
Published: January 2022

Abstract
To realize the accurate motion control of the ball screw feed system, it is necessary to establish a reasonable dynamic model. However, the dynamic characteristics of the ball screw feed system are time-varying and nonlinear in practice. Therefore, a Linear Parameter Varying (LPV) modeling method is proposed. Firstly, the rigid body model considering the mechanical and electrical characteristics and the flexible body model considering the change of table position and workpiece mass are established, and the model parameters are further identified. Then, the LPV model is established based on the rigid body model and flexible body model. Finally, the LPV model is proved to be able to well characterize the time-varying dynamic characteristics of the ball screw feed system, which is proved by simulation experiment of modal analysis.
Probabilistic modeling of crop-yield loss risk under drought: a spatial showcase for sub-Saharan Africa
Authors: Kamali Bahareh , Jahanbakhshi Farshid , Dogaru Diana , Dietrich Jörg , Nendel Claas , AghaKouchak Amir 
Published: January 2022

Abstract
Assessing the risk of yield loss in African drought-affected regions is key to identify feasible solutions for stable crop production. Recent studies have demonstrated that Copula-based probabilistic methods are well suited for such assessment owing to reasonably inferring important properties in terms of exceedance probability and joint dependence of different characterization. However, insufficient attention has been given to quantifying the probability of yield loss and determining the contribution of climatic factors. This study applies the Copula theory to describe the dependence between drought and crop yield anomalies for rainfed maize, millet, and sorghum crops in sub-Saharan Africa (SSA). The environmental policy integrated climate model, calibrated with Food and Agriculture Organization country-level yield data, was used to simulate yields across SSA (1980–2012). The results showed that the severity of yield loss due to drought had a higher magnitude than the severity of drought itself. Sensitivity analysis to identify factors contributing to drought and high-temperature stresses for all crops showed that the amount of precipitation during vegetation and grain filling was the main driver of crop yield loss, and the effect of temperature was stronger for sorghum than for maize and millet. The results demonstrate the added value of probabilistic methods for drought-impact assessment. For future studies, we recommend looking into factors influencing drought and high-temperature stresses as individual/concurrent climatic extremes.
Quantifying the regional stranded asset risks from new coal plants under 1.5 °C
Authors: Edwards Morgan R , Cui Ryna , Bindl Matilyn , Hultman Nathan , Mathur Krinjal , McJeon Haewon , Iyer Gokul , Song Jiawei , Zhao Alicia 
Published: January 2022

Abstract
Momentum to phase out unabated coal use is growing globally. This transition is critical to meeting the Paris climate goals but can potentially lead to large amounts of stranded assets, especially in regions with newer and growing coal fleets. Here we combine plant-level data with a global integrated assessment model to quantify changes in global stranded asset risks from coal-fired power plants across regions and over time. With new plant proposals, cancellations, and retirements over the past five years, global net committed emissions in 2030 from existing and planned coal plants declined by 3.3 GtCO2 (25%). While these emissions are now roughly in line with initial Nationally Determined Contributions (NDCs) to the Paris Agreement, they remain far off track from longer-term climate goals. Progress made in 2021 towards no new coal can potentially avoid a 24% (503 GW) increase in capacity and a 55% ($520 billion) increase in stranded assets under 1.5 °C. Stranded asset risks fall disproportionately on emerging Asian economies with newer and growing coal fleets. Recent no new coal commitments from major coal financers can potentially reduce stranding of international investments by over 50%.
Taking leads out of nature, can nano deliver us from COVID-like pandemics?
Authors: Kaur Navneet , Sharma Priyanka , Aditya Adrija , Shanavas Asifkhan 
Published: January 2022

AbstractThe COVID-19 crisis has alerted the research community to re-purpose scientific tools that can effectively manage emergency pandemic situations. Researchers were never so desperate to discover a ‘magic bullet’ that has significant clinical benefits with minimal or no side effects. At the beginning of the pandemic, due to restricted access to traditional laboratory techniques, many research groups delved into computational screening of thousands of lead molecules that could inhibit SARS-CoV-2 at one or more stages of its infectious cycle. Severalin silicostudies on natural derivatives point out their potency against SARS-CoV-2 proteins. However, theoretical predictions and existing knowledge on related molecules reflect their poor oral bioavailability due to biotransformation in the gut and liver. Nanotechnology has evolved into a key field for precise and controlled delivery of various drugs that lack aqueous solubility, have low oral bioavailability and possess pronounced toxicity in their native form. In this review, we discuss various nanoformulations of natural products with favorable ADME properties, and also briefly explore nano-drug delivery to lungs, the primary site of SARS-CoV-2 infection. Natural products are also envisioned to augment nanotechnology-based (1) personnel protective equipment forex vivoviral inactivation and (2) wearable sensors that perform rapid and non-invasive analysis of volatile organic compounds in exhaled breath of the infected person after therapeutic food consumption.
Study of the fast electron behavior in electron cyclotron current driven plasma on J-TEXT
Authors: ZHANG Xiaobo , YAN Wei , CHEN Zhongyong , FANG Jiangang , ZHANG Junli , LI You , CHEN Xixuan , WEI Yunong , TONG Ruihai , LIN Zhifang , ZHONG Yu , MOU Lingke , LI Feng , ZHANG Weikang , WANG Lu , XIA Donghui , JIANG Zhonghe , YANG Zhoujun , WANG Nengchao , CHEN Zhipeng , DING Yonghua , LIANG Yunfeng , PAN Yan 
Published: January 2022

Abstract
In J-TEXT tokamak, fast electron bremsstrahlung diagnostic with 9 chords equipped with multi-channel analyzer enables detailed studies of the generation and transport of fast electrons. The spatial profiles and energy spectrum of the fast electrons have been measured in two ECCD cases with either on-axis or off-axis injection, and the profiles processed by Abel-inversion are consistent with the calculated power deposition locations. Moreover, it is observed that the energy of fast electrons increases rapidly after turning off the ECCD, which may be attributed to the acceleration by the recovered loop voltage at low electron density.
Roadmap on topological photonics
Authors: Price Hannah , Chong Yidong , Khanikaev Alexander , Schomerus Henning , Maczewsky Lukas J , Kremer Mark , Heinrich Matthias , Szameit Alexander , Zilberberg Oded , Yang Yihao , Zhang Baile , Alù Andrea , Thomale Ronny , Carusotto Iacopo , St-Jean Philippe , Amo Alberto , Dutt Avik , Yuan Luqi , Fan Shanhui , Yin Xuefan , Peng Chao , Ozawa Tomoki , Blanco-Redondo Andrea 
Published: January 2022

Abstract
Topological photonics seeks to control the behaviour of the light through the design of protected topological modes in photonic structures. While this approach originated from studying the behaviour of electrons in solid-state materials, it has since blossomed into a field that is at the very forefront of the search for new topological types of matter. This can have real implications for future technologies by harnessing the robustness of topological photonics for applications in photonics devices. This roadmap surveys some of the main emerging areas of research within topological photonics, with a special attention to questions in fundamental science, which photonics is in an ideal position to address. Each section provides an overview of the current and future challenges within a part of the field, highlighting the most exciting opportunities for future research and developments.