bluuebunny/crossref_metadata_2025_split huggingface dataset:
Airborne Measurement of Earth Gravity by Comparing Three Kinds of Gravimeters
Authors: Cai Shaokun , Cao Juliang , Yu Ruihang , Xiong Zhiming 
Published: August 2023

Abstract
NUDT (National University of Defense Technology) has developed a strapdown gravimeter based on the SINS/GPS named SGA-WZ01. From April to May 2012, an airborne gravimetry flight test was carried out in the South China Sea. In this flight test, except SGA-WZ01, a 3-axis inertial platform gravimeter, GT-1A, and a damped 2-axis platform gravimeter, TAGS, were installed to obtain the gravity information. This was the first time that such a flight campaign was undertaken in China. The flight test contains one repeated line flight and four gridded line flights. The evaluation of the repeatability is based on repeated surveying lines, and the evaluation of the internal accuracy is based on all gridded lines. The results show that both GT-1A and TAGS have systematic biases about several mGal for repeated lines along west-east and northwest-southeast repeated lines, and the repeatability of SGA-WZ01 is consistent along repeated lines in different directions. The accuracy of gridded lines without crossover adjustment of GT-1A is about 1.73 mGal, while the crossover accuracy is 2.76 mGal and 2.08 mGal for TAGS and SGA-WZ01, respectively. The outcomes show that the performance of the SGA-WZ01 is comparable to that of foreign gravimeters.
The jitter frequency domain of long-span railway cable-stayed bridges considering the influence of pneumatic admittance
Authors: Liu Yanming , Yang Yongyi 
Published: August 2023

Abstract
The long-span bridge is highly sensitive to wind loads, and their random vibration response under static wind deformation and fluctuating wind load are relatively complex. The analysis of jitter response has become a key issue in the design. Taking the Hanjiatuo Yangtze River Bridge in the chongqing-lichuan railway as the engineering background, the influence of different aerodynamic admittance functions on the main girder jitter response is studied through frequency domain analysis. The results show that aerodynamic admittance has a great influence on the jitter response. Considering that the jitter displacement response of the aerodynamic admittance function is obviously smaller than the calculated results, the influence of aerodynamic admittance should be considered in the calculation and analysis.
Numerical analysis of fatigue strength for ultra-large ships considering springing
Authors: Chen Ling , Meng Qiao , Lu Chibo 
Published: August 2023

Abstract
Due to the low stiffness of ultra-large ships, the effect of springing becomes more obvious. The traditional quasi-static spectral method (QSM) ignores the coupling effect of hydrodynamic load and hull elastic characteristics, so it is unable to solve the problem of fatigue strength considering springing. To solve the problem and investigate the impact of springing response on fatigue, the stress mode superposition spectral method (SSM) suitable for ultra-large ships is proposed. The numerical analysis is performed on a real ship as an example. The results show that: Fatigue stress response generates new peaks at the high-frequency regions when considering the effect of springing, and fatigue damage is greatly increased. The degree of influence of springing response on fatigue strength is related to wave incident angles and sea conditions. This method has reference significance for the evaluation of fatigue strength of ultra-large ships considering springing effects.
A self-supporting Cu2S/CP lithium-ion battery anode
Authors: Chu Ruixia , Huang Wanyou , Yang Jun , Zhang Kesong , Qiu Fangyuan , Tan Shiwei , Zhu Peidong , Liu Dongying 
Published: August 2023

Abstract
Lithium-ion (Li-ion) batteries have been widely used in portable electronic devices and new energy vehicles in recent years. Although commercial graphite anode has good safety and low cost, its low theoretical capacity cannot better meet the demand for higher-capacity of power batteries. As an excellent electrode material, copper sulfide (Cu2S) has the advantages of high capacity and stability. Herein, Cu2S deposited on carbon paper (Cu2S@CP) was prepared by simple copper electrodeposition on carbon paper and sulphidation, which can be used to the anode of Li-ion batteries directly. Based on the three-dimensional structure of carbon paper and the high capacity of copper sulfide, the composite anode shows good lithium storage performance, which provides a new possibility for commercial power lithium-ion battery anode materials.
Zeolite Imidazolate Framework-Derived N-Doped Carbon-Supported Ultra-Low Platinum Catalyst for Enhancing Methanol Oxidation Reactions
Authors: Chen Yuting , Liu Zhongsu , Liu Chunyu , Zhang Shenhang , Li Haotian , Chen Hong , Dong Xingzheng , Chen Qianqian , Shi Xiaohua , Ren Guohong 
Published: August 2023

Abstract
Direct methanol fuel cells (DMFCs) have a broad application market due to their merits of high power density, wide source of raw materials, and convenient storage and transportation. At present, the common platinum (Pt) catalysts have some problems, such as low reserves, and expensive and poor reaction kinetics. Therefore, a zeolite imidazolate framework (ZIF) derived N-doped carbon-supported ultra-low platinum catalysts (Pt-Co@ZCN) are prepared using ZIF-67@ZIF-8 as the support. The effects of heating rate on the morphology and electrocatalytic performance of the synthesized materials are investigated. The characterization results reveal that the morphology and structure of Pt-Co@ZCN-900-2 are superior to other samples. The mass activity and stability toward methanol oxidation of the synthesized samples are also better than those of commercial Pt/C catalysts.
Modifying SiO @ C as High-performance Anode of Lithium-ion Batteries
Authors: Liu Tao , Zhang Ling , Wu Borong 
Published: August 2023

Abstract
SiO is a widely prospected anode material, which is an excellent substitute for pure silicon for lithium-ion batteries in the future, with the reason of lower expansion degree. However, the conductivity of SiO is also poor and has a side reaction with electrolytes. Here, we choose melamine as a nitrogen source to modify the carbon layer-coated SiO materials. This study shows that nitrogen and carbon shells lead to forming stable SEI, and improve the conductivity of the anodes. Consequently, at 0.1 C, the modified SiO materials in the anode achieve an excellent specific capacity (1711.5 mAh g-1), in addition, the decay rate of the capacity is 0.6% per cycle in the next 100 cycles. This method makes a new direction for the product of SiO materials.
Surface Modification of Micro-Silicon Anode for High-performance Lithium-Ion Batteries
Authors: Chen Tongren , Yan Wengang , Yu Dong , Ma Siyuan , Ma Liang , Huang Qing , Li Ning 
Published: August 2023

Abstract
Advanced lithium-ion batteries are urgently needed in consumer electronic products, electric vehicles, and energy storage, while the traditional carbonaceous anode materials with relatively low specific capacity gradually become difficult to meet the practical requirements in the market. Silicon-based anodes are considered one of the most promising alternatives in LIBs with high specific energy due to their considerable theoretical specific capacities. However, the large volume variation and severe surface parasitic reactions still limit the practical application of silicon anode. In this work, to suppress the surface side reactions and great volume changes, the electrochemical inert Li3PO4 is proposed to be coated as the physical barrier between the silicon and electrolyte. The as-coated micro-silicon has been successfully prepared via a facile spray drying method with a low-temperature thermal treatment. Li3PO4 coating layer with high shear modules can not only passivate the surface but also enable to suppression of the severe volumetric expansion and shrinkage of the silicon particle, thus enhancing the initial columbic efficiency and structural integrity of the silicon materials during long-term cycling. The optimized silicon anode with the proper amount of Li3PO4 displays a superior initial columbic efficiency higher than 90% and a highly reversible capacity of 1394 mAh g-1 after charging and discharging 200 times. It is hoped this work should shed light on the modification of high-capacity anode materials.
Investigation of the impact of annealing temperature on characteristics of porous SiOCH films
Authors: Zeng Min , Zhang Jing , Wang Yanrong 
Published: August 2023

Abstract
Porous SiOCH films with different porosity and low dielectric constant (k) were prepared by sol-gel and spin coating using methyltrimethoxy-silane (MTMS) and 1, 2-bis (trimethoxysilyl) ethane (BTMSE) as precursors and cetyltrimethylammonium chloride (CTAC) as porogen. The impact of different annealing temperatures on the chemical composition, hydrophobicity, pore arrangement, and dielectric constant of porous SiOCH films was investigated. The experimental results show that the SiOCH films with MTMS and BTMSE as precursors contain -C-C-bond and terminal methyl (Si-CH3). After annealing at 400 °C, the chemical composition of the films is stable. The water contact angle (WCA) is larger than 90°, and the films have good hydrophobicity.
Effects of selected retarders on workability window and other properties of cement-based sprayed mortars
Authors: Krivánková E , Kubátová D , Boháč M , Krejčí Kotlánová M , Rybová A , Zezulová A 
Published: August 2023

Abstract
Setting reducing agents were studied with respect to rheological properties of sprayed mortars based on fast-setting cement binder. The aim was to slightly delay the fast-setting effect caused mainly by tricalcium aluminate presence in order to adjust the workability window resulting in improved pumpability. Main experiments were performed using rotational rheometer and powder X-ray diffractometer. Additionally, 7day, 14day and 28day strength tests were done. The results show that chosen chemicals work as retarders, but not in required extent. Moreover, apart from the usual slower development of the strength due to the presence of retarder, at applied amounts, some of them can even have undesirable side effects such as causing weaker overall structure of the cured specimens.
Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortars
Authors: Hajzler J , Bílek Jr V , Kejík M , Kucharczyková B 
Published: August 2023

Abstract
One of the critical factors affecting the performance of alkali-activated slag (AAS) is the nature and dose of alkali activator. The activator type can play a significant role during the transition from pastes to mortars or concretes. Therefore, three basic sodium activators (water glass, carbonate, and hydroxide) of the same molarity of 4M Na+ were used to prepare AAS-based mortars with different volume fractions of siliceous sand. These were compared by means of workability, mechanical strength, and long-term shrinkage under autogenous conditions. The results were compared to those obtained on pastes with similar workability. Increasing the content of the sand tended rather to decrease the mechanical properties, while greatly decreased autogenous shrinkage. Nevertheless, the most remarkable differences for different activators were observed when comparing the mortars with pastes. The transition from pastes to mortars resulted in the highest reduction in both compressive and flexural strength for sodium hydroxide. The flexural strength of the mortars with sodium water glass and sodium carbonate even increased considerably in presence of sand.
Future prospects in mRNA vaccine development
Authors: Mbatha Londiwe Simphiwe , Akinyelu Jude , Maiyo Fiona , Kudanga Tukayi 
Published: August 2023

Abstract
The recent advancements in messenger ribonucleic acid (mRNA) vaccine development have vastly enhanced their use as alternatives to conventional vaccines in the prevention of various infectious diseases and treatment of several types of cancers. This is mainly due to their remarkable ability to stimulate specific immune responses with minimal clinical side effects. This review gives a detailed overview of mRNA vaccines currently in use or at various stages of development, the recent advancements in mRNA vaccine development, and the challenges encountered in their development. Future perspectives on this technology are also discussed.
Electrochemical and optical-based systems for SARS-COV-2 and various pathogens assessment
Authors: Ahmed Shahzad , Ansari Arshiya , Siddiqui Moin Ali , Imran Mohd , Kumari Beauty , Khan Afzal , Ranjan Pranay 
Published: August 2023

Abstract
A critical step in the process for preventing and identifying emergencies relating to health, safety, and welfare is the testing and quick diagnosis of microbial pathogens. Due to the fast spread of waterborne and food borne infections in society and the high costs associated with them, pathogen identification has emerged as one of the most difficult parts of the water and food sectors. Since the turn of the century, pathogens have demonstrated enormous epidemiological and pandemic potential. The emergence and dissemination of a novel virus with pandemic potential endanger the livelihoods and well-being of individuals worldwide. The severe acute respiratory syndrome-coronavirus-2 (SARS-COV-2) coronavirus pandemic has propagated to almost every country on Earth and has had a considerable negative influence on economies and communities. Despite improvements in identification techniques for viral diseases, all nations must now execute biosensing in a speedy, sensitive, focused, and consistent manner in order to address pressing global issues. Hence, in this review, we have critically summarised the recent advancement of electrochemical as well as optical biosensors for the monitoring of SARS-COV-2 and various pathogens. Then, we began by providing a technical overview of cutting-edge strategies utilised to combat diseases and emergencies for it, including the utilisation of point-of-care technology (POCT), artificial intelligence (AI), and the internet of medical things (IoMT). This review article explores the integration of POC, IoMT, and AI technologies in the context of personal healthcare, focusing on their potential to expedite the diagnosis and treatment of medical conditions, ultimately leading to improved patient outcomes. Subsequently, the notion and execution of multiplex testing are presented to enhance the comprehension of detecting multiple analytes. Finally, conclusions and future directions have been presented.
A green synthesis of CuInS2/MIL-101(Cr) nanocomposite with efficient visible light induced photocatalytic activity
Authors: Nguyen Hong Van T , Nguyen Manh B , Doan Huan V , Pham Xuan Nui 
Published: August 2023

AbstractThis study demonstrates the sustainable synthesis of multifunctional CIS@MIL-101(Cr) composites for water treatment applications. The composites were prepared via hybridization of CuInS2with MIL-101(Cr) resulting in the formation of CIS nanoplates incorporated into MIL-101(Cr). The composites exhibited enhanced visible light photocatalytic activity due to their low bandgap energy and were tested for tetracycline photodegradation achieving a degradation efficiency of 98.8%. The material showed high stability after four cycles, and the effects of reactive species on photodegradation were investigated. The kinetics and mechanism of the photocatalytic process were studied, and LC-MS analysis was conducted to identify intermediate products. These results demonstrate the potential of using waste PET to create new semiconductors for water pollution control, promoting a circular material pathway.
Decoding auditory-evoked response in affective states using wearable around-ear EEG system
Authors: Choi Jaehoon , Kaongoen Netiwit , Choi HyoSeon , Kim Minuk , Kim Byung Hyung , Jo Sungho 
Published: August 2023

Abstract

Objective. In this paper, an around-ear EEG system is investigated as an alternative methodology to conventional scalp-EEG-based systems in classifying human affective states in the arousal-valence domain evoked in response to auditory stimuli. Approach. EEG recorded from around the ears is compared to EEG collected according to the international 10–20 system in terms of efficacy in an affective state classification task. A wearable device with eight dry EEG channels is designed for ear-EEG acquisition in this study. Twenty-one subjects participated in an experiment consisting of six sessions over three days using both ear and scalp-EEG acquisition methods. Experimental tasks consisted of listening to an auditory stimulus and self-reporting the elicited emotion in response to the said stimulus. Various features were used in tandem with asymmetry methods to evaluate binary classification performances of arousal and valence states using ear-EEG signals in comparison to scalp-EEG. Main results. We achieve an average accuracy of 67.09% ± 6.14 for arousal and 66.61% ± 6.14 for valence after training a multi-layer extreme learning machine with ear-EEG signals in a subject-dependent context in comparison to scalp-EEG approach which achieves an average accuracy of 68.59% ± 6.26 for arousal and 67.10% ± 4.99 for valence. In a subject-independent context, the ear-EEG approach achieves 63.74% ± 3.84 for arousal and 64.32% ± 6.38 for valence while the scalp-EEG approach achieves 64.67% ± 6.91 for arousal and 64.86% ± 5.95 for valence. The best results show no significant differences between ear-EEG and scalp-EEG signals for classifications of affective states. Significance. To the best of our knowledge, this paper is the first work to explore the use of around-ear EEG signals in emotion monitoring. Our results demonstrate the potential use of around-ear EEG systems for the development of emotional monitoring setups that are more suitable for use in daily affective life log systems compared to conventional scalp-EEG setups.
Graphical structures for design and verification of quantum error correction
Authors: Chancellor Nicholas , Kissinger Aleks , Zohren Stefan , Roffe Joschka , Horsman Dominic 
Published: August 2023

Abstract
We introduce a high-level graphical framework for designing and analysing quantum error correcting codes, centred on what we term the coherent parity check (CPC). The graphical formulation is based on the diagrammatic tools of the ZX-calculus of quantum observables. The resulting framework leads to a construction for stabilizer codes that allows us to design and verify a broad range of quantum codes based on classical ones, and that gives a means of discovering large classes of codes using both analytical and numerical methods. We focus in particular on the smaller codes that will be the first used by near-term devices. We show how CSS codes form a subset of CPC codes and, more generally, how to compute stabilizers for a CPC code. As an explicit example of this framework, we give a method for turning almost any pair of classical

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CPC code. Further, we give a simple technique for machine search which yields thousands of potential codes, and demonstrate its operation for distance 3 and 5 codes. Finally, we use the graphical tools to demonstrate how Clifford computation can be performed within CPC codes. As our framework gives a new tool for constructing small- to medium-sized codes with relatively high code rates, it provides a new source for codes that could be suitable for emerging devices, while its ZX-calculus foundations enable natural integration of error correction with graphical compiler toolchains. It also provides a powerful framework for reasoning about all stabilizer quantum error correction codes of any size.
Contact–separation mode triboelectric nanogenerator utilizing carbon-fiber composite structure for harvesting mechanical energy
Authors: Lee Seonghwan , Park Young-Bin 
Published: August 2023

Abstract
The rapid depletion and adverse environmental impacts of fossil fuels necessitate the development of alternative sources of sustainable and ecofriendly energy to address the increasing energy demand due to population growth and technological advancement. Energy harvesting is a major strategy for the generation of sustainable and clean energy. It involves the scavenging and subsequent conversion of the energy from the surroundings into usable electrical energy. In this study, the conversion of the mechanical energy externally applied to a carbon-fiber-reinforced plastic (CFRP)-based structure into electrical energy using a triboelectric nanogenerator (TENG) was demonstrated. CFRPs are ultralight composites with high strength and stiffness, and they are primarily utilized in aircraft and automobiles. CFRP was the primary component of the CFRP-based TENG (CFRP-TENG) developed in this study. The carbon fibers of the CFRP acted as an electrode. Polyamide 6, which corresponded to the matrix of the CFRP, and polytetrafluoroethylene, which was attached to the surface of the CFRP, acted as friction pairs. The CFRP-TENG generated a voltage, short-circuit current, and power of up to 62 V, 7.76 μA, and 400 mW m−2, respectively, with an optimal external resistance of 20 MΩ. A structural CFRP was successfully applied as a TENG in this study; thus, the possibility of transforming a CFRP-based structure into a self-powering structure was demonstrated. The technique used in this study is expected to serve as a novel approach for energy generation in cyber-physical systems. This will facilitate the attachment of self-supporting energy systems such as sensors, power management systems, and actuators to the human body without additional batteries.
Associations between long-term exposure to fine particulate matter and osteoporotic fracture risks in South Korea
Authors: Heo Seulkee , Byun Garam , Kim Sera , Lee Whanhee , Lee Jong-Tae , Bell Michelle L 
Published: August 2023

Abstract
The prevalence of osteoporotic fracture is increasing globally due to rapid population growth and aging. Current evidence suggests adverse impacts of air pollution on bone mineral density loss and osteoporosis, but population-based evidence for the associations between fine particulate matter (particulate matter no larger than 2.5 μm in diameter [PM2.5]) and osteoporotic fracture is limited due to the small number of studies. This longitudinal study assessed the associations between long-term exposure to PM2.5 and osteoporotic fracture incidence in adults aged ⩾40 years, who enrolled in the National Health Insurance Service-National Sample Cohort data in 2002–2019 in South Korea. A time-varying moving window of past exposures of PM2.5 up to ten past years was estimated for participants’ residential addresses using modeled PM2.5. We used Cox proportional hazard models to estimate hazard ratios (HRs) of time-variant moving concentrations of PM2.5 exposure and osteoporotic fracture. The Cox models calculated HRs for an interquartile range (IQR) increase in PM2.5 exposure, adjusting for age, sex, body mass index, health behaviors, medications, disease history, income, and urbanicity. We assessed 161 831 participants over 993 104 person-year of follow-up. Results suggested linear and positive exposure-response associations for past PM2.5 exposure in the prior four years or more. The IQR increase in 5-year moving average PM2.5 was significantly associated with increased osteoporotic risk (HR = 1.079, 95% CI: 1.001, 1.164). The HRs were significant in women (1.102, 95% CI: 1.011, 1.200) and the subset of women aged 50–74 years (1.105, 95% CI: 1.005, 1.214) but not in men overall or by age groups. The association was not significantly different by income, physical activities, urbanicity, or diet. Overall, long-term PM2.5 exposure was associated with increased osteoporotic fracture risks in Korean adults, especially women.