bluuebunny/crossref_metadata_2025 huggingface dataset:
Ionic liquid-assisted synthesis of chitin–ethylene glycol hydrogels as electrolyte membranes for sustainable electrochemical capacitors
Authors: Wysokowski Marcin , Nowacki Krzysztof , Jaworski Filip , Niemczak Michał , Bartczak Przemysław , Sandomierski Mariusz , Piasecki Adam , Galiński Maciej , Jesionowski Teofil
Published: May 2022

A novel chitin–ethylene glycol hybrid gel was prepared as a hydrogel electrolyte for electrical double-layer capacitors (EDLCs) using 1-butyl-3-methylimidazolium acetate [Bmim][Ac] as a chitin solvent. Examination of the morphology and topography of the chitin–EG membrane showed a homogeneous and smooth surface, while the thickness of the membrane obtained was 27 µm. The electrochemical performance of the chitin–EG hydrogel electrolyte was investigated by cyclic voltammetry and galvanostatic charge/discharge measurements. The specific capacitance value of the EDLC with chitin–EG hydrogel electrolyte was found to be 109 F g−1 in a potential range from 0 to 0.8 V. The tested hydrogel material was electrochemically stable and did not decompose even after 10,000 GCD cycles. Additionally, the EDLC test cell with chitin–EG hydrogel as electrolyte exhibited superior capacitance retention after 10,000 charge/discharge cycles compared with a commercial glass fiber membrane.
The effects of CuO/CeO2 mixture nanoparticles on the performance of a vapor compression refrigeration system
Authors: Mohamed HudaElslam Abdali , Camdali Unal , Biyikoglu Atilla , Aktas Metin
Published: May 2022

This study was built on the basis of experimental results from a simple refrigeration system using R134a as a refrigerant. Based on the real dimensions of the system and the experimental results, Ansys fluent software was used to simulate the system to prepare the system to introduce the nanoparticles theoretically. Since the nanoparticle preparation process is expensive, this research presents a simple, easy, and inexpensive method for the preparation process based on, distilled water, ammonia, copper nitrate, and cerium nitrate to synthesize seven types of nanoparticles as a single oxide and as a mixture from two different oxides The results of preparing using X-ray diffraction and scanning electron microscopy confirmed that the particles were spherical in shape, with suitable average diameters ranging between 78.95 nm, 79.9 nm, 44.15 nm and 63.3 nm for copper oxide, cerium oxide, the first mixture, and the second mixture respectively. The theoretical study confirmed that both copper oxide, cerium oxide, and the mixture consisting of both improved the performance of the refrigeration system and reduced energy consumption. Moreover using the numerical equations available in the literature to calculate the thermophysical properties proved an improvement in these properties with an increase in the nanoparticle concentration when mixed with R134a.
Nitrogen-rich energetic polymer powered aluminum particles with enhanced reactivity and energy content
Authors: Li Yaru , Ren Hui , Wu Xinzhou , Wang Huixin , Yu Xilong
Published: May 2022

Aluminum particles are of significant interest in enhancing the energy release performance of explosives. One of the major impediments to their use is that Al2O3 shell significantly decreases overall performance. To address this issue, we investigate creating aluminum particles with a glycidyl azide polymer (GAP) coating to improve their reactivity while retaining their energy content. We found that the aluminum particles were coated with a GAP layer of thickness around 8.5 nm. The coated aluminum particles were compared to non-coated powder by the corresponding reactivity parameters obtained from simultaneous differential scanning calorimetry, thermal gravimetric analysis, coupled with mass spectral and infrared spectral analyses. Besides, the comparison on the energy content was also conducted based on P–t tests and a laser-induced air shock from energetic materials (LASEM) technique. It was found that GAP shifted the oxidation onset of aluminum particles to a lower temperature by ~ 10 °C. Besides, the oxidation activation energy of aluminum particles was also reduced by ~ 15 kJ mol−1. In return, aluminum particles reduced the activation energy of the second stage decomposition of the GAP by 276 kJ mol−1. And due to the synergistic effect between aluminum and GAP, the decomposition products of GAP were prone to be oxycarbide species rather than carbonitride species. In addition, the P–t test showed the peak pressure and pressurization rate of GAP coated aluminum particles were separately 1.4 times and 1.9 times as large as those of non-coated aluminum particles. Furthermore, the LASEM experiment suggested the shock wave velocity of the GAP coated aluminum particles was larger than that of non-coated aluminum particles, and the largest velocity difference for them could be 0.6 km s−1. This study suggests after coating by GAP, the aluminum particles possess enhanced reaction performance, which shows potential application value in the fields of aluminized explosives and other energetic fields.
The effect of body mass reduction on functional stability in young obese women
Authors: Cieślińska-Świder Joanna , Błaszczyk Janusz Wiesław , Opala-Berdzik Agnieszka
Published: May 2022

Functional stability is necessary for everyday activities. The studies have indicated the deterioration of functional stability during standing in the obese adults. This study aimed to determine whether the 3-month weight-loss program that resulted in body mass reduction equal to or greater than 5% of the initial body mass would improve functional stability in young obese women. For the purpose of this study, the data of 30 females were included. Their mean age was 35.8 ± 9.2. The women performed the anterior limit of stability test on the force platform twice: before and after weight-loss program. Their BMI at two sessions was 36.1 ± 5.1 and 32.3 ± 5, respectively. After the weight loss program, the COP velocities were increased in both phases of the anterior limit of stability test: the dynamic transition from standing to maximal forward-leaning and the maintenance of maximal forward-leaning position (p < 0.05). No significant changes in the values of the COP parameters were found in the eyes-closed trial (p > 0.05). The results suggest that body mass reduction in young obese women led to improved mobility and postural control when visual cuing was available. The longer-lasting weight-loss program might be necessary to observe this effect under visual deprivation conditions. Body mass should be reduced in obese patients to improve their mobility and functional stability; it may prevent unexpected falls.
Influence of restorative material translucency on the chameleon effect
Authors: Vattanaseangsiri Tanaporn , Khawpongampai Areeyabhorn , Sittipholvanichkul Pornpitcha , Jittapiromsak Nawaporn , Posritong Sumana , Wayakanon Kornchanok
Published: May 2022

Blending of artificial restoration materials to the natural tooth is challenging. Beyond just color, optical properties, particularly translucency, substantially influence the final appearance. The more chameleon effect that the restorative materials exhibit, the more natural looking restorations. The purpose of this study is to investigate the influence of restorative material translucency on the chameleon effect. Five types of resin composite in three different shades as well as one shade of conventional glass ionomer cement were fabricated into disks. To analyze the chameleon effect, glass ceramic blocks were milled to create four wells in each block. The restorative materials were filled into the wells. The color was measured with CIE L*a*b* every 6 months. Statistical analysis was conducted using Two-Way Repeated Measures ANOVA. The material with the highest translucency was flowable resin composite. The high translucency materials exhibited an immediate chameleon effect, as did the bulk-fill resin composites, which are low translucency. Both high and low translucency materials exhibited a delayed chameleon effect for 3 years, except for the bulk fill resin composites. The translucency of the restorative materials had a 68% positive correlation with their chameleon effect. The age of the restoration is one important factor influencing the color blending.
Biodiversity of mycobial communities in health and onychomycosis
Authors: Olbrich Michael , Ernst Anna Lara , Beltsiou Foteini , Bieber Katja , Ständer Sascha , Harder Melanie , Anemüller Waltraud , Köhler Birgit , Zillikens Detlef , Busch Hauke , Künstner Axel , Ludwig Ralf J.
Published: May 2022

Onychomycosis (OM) is a common fungal nail infection. Based on the rich mycobial diversity in healthy toenails, we speculated that this is lost in OM due to the predominance of a single pathogen. We used next generation sequencing to obtain insights into the biodiversity of fungal communities in both healthy individuals and OM patients. By sequencing, a total of 338 operational-taxonomic units were found in OM patients and healthy controls. Interestingly, a classifier distinguished three distinct subsets: healthy controls and two groups within OM patients with either a low or high abundance of Trichophyton. Diversity per sample was decreased in controls compared to cases with low Trichophyton abundance (LTA), while cases with a high Trichophyton abundance (HTA) showed a lower diversity. Variation of mycobial communities between the samples showed shifts in the community structure between cases and controls—mainly driven by HTA cases. Indeed, LTA cases had a fungal β-diversity undistinguishable from that of healthy controls. Collectively, our data provides an in-depth characterization of fungal diversity in health and OM. Our findings also suggest that onychomycosis develops either through pathogen-driven mechanisms, i.e., in HTA cases, or through host and/or environmental factors, i.e., in cases with a low Trichophyton abundance.
Intramolecular hydroxyl nucleophilic attack pathway by a polymeric water oxidation catalyst with single cobalt sites
Authors: Yang Hao , Li Fusheng , Zhan Shaoqi , Liu Yawen , Li Wenlong , Meng Qijun , Kravchenko Alexander , Liu Tianqi , Yang Yi , Fang Yuan , Wang Linqin , Guan Jiaqi , Furó István , Ahlquist Mårten S. G. , Sun Licheng
Published: May 2022

Exploration of efficient water oxidation catalysts (WOCs) is the primary challenge in conversion of renewable energy into fuels. Here we report a molecularly well-defined heterogeneous WOC with Aza-fused, π-conjugated, microporous polymer (Aza-CMP) coordinated single cobalt sites (Aza-CMP-Co). The single cobalt sites in Aza-CMP-Co exhibited superior activity under alkaline and near-neutral conditions. Moreover, the molecular nature of the isolated catalytic sites makes Aza-CMP-Co a reliable model for studying the heterogeneous water oxidation mechanism. By a combination of experimental and theoretical results, a pH-dependent nucleophilic attack pathway for O-O bond formation was proposed. Under alkaline conditions, the intramolecular hydroxyl nucleophilic attack (IHNA) process with which the adjacent -OH group nucleophilically attacks Co4+=O was identified as the rate-determining step. This process leads to lower activation energy and accelerated kinetics than those of the intermolecular water nucleophilic attack (WNA) pathway. This study provides significant insights into the crucial function of electrolyte pH in water oxidation catalysis and enhancement of water oxidation activity by regulation of the IHNA pathway.
Endoglycosidase assay using enzymatically synthesized fluorophore-labeled glycans as substrates to uncover enzyme substrate specificities
Authors: Wu Zhengliang L. , Ertelt James M.
Published: May 2022

Glycan synthesis and degradation are not template but enzyme only driven processes. Substrate specificities of glyco-enzymes determine the structures of specific natural glycans. Using endoglycosidases as examples, we describe methods to study these enzymes. Endoglycosidase S/S2 specifically deglycosylates the conserved N-glycans of human immunoglobulin G. Endo-β-Galactosidase hydrolyzes internal β-galactosyl linkage in polylactosaminoglycan structures. To assay these enzymes, eleven fluorophore-labeled N-glycans and one polylactosamine ladder are synthesized. Digestion of these glycans result in mobility shift in gel electrophoresis. Results on Endo S/S2 assays reveal that they are most active on the agalactosylated biantennary N-glycans with decreased activity on galactosylated and sialylated glycans and little or no activity on branched and bisected glycans. Assays on Endo-β-Gal reveal that the enzyme is active from pH 3.5 to 9.0 and the β3-linked GlcNAc adjacent to the cleavage site is minimal for the enzyme recognition with the optimal recognition motif spanning at least four lactosamine repeats. Our methods will provide an opportunity to understand how specific glycans are synthesized and degraded.
Salinity tolerance mechanisms of an Arctic Pelagophyte using comparative transcriptomic and gene expression analysis
Authors: Freyria Nastasia J. , Kuo Alan , Chovatia Mansi , Johnson Jenifer , Lipzen Anna , Barry Kerrie W. , Grigoriev Igor V. , Lovejoy Connie
Published: May 2022

Little is known at the transcriptional level about microbial eukaryotic adaptations to short-term salinity change. Arctic microalgae are exposed to low salinity due to sea-ice melt and higher salinity with brine channel formation during freeze-up. Here, we investigate the transcriptional response of an ice-associated microalgae over salinities from 45 to 8. Our results show a bracketed response of differential gene expression when the cultures were exposed to progressively decreasing salinity. Key genes associated with salinity changes were involved in specific metabolic pathways, transcription factors and regulators, protein kinases, carbohydrate active enzymes, and inorganic ion transporters. The pelagophyte seemed to use a strategy involving overexpression of Na+-H+antiporters and Na+-Pi symporters as salinity decreases, but the K+channel complex at higher salinities. Specific adaptation to cold saline arctic conditions was seen with differential expression of several antifreeze proteins, an ice-binding protein and an acyl-esterase involved in cold adaptation.
Biomimetic reusable microfluidic reactors with physically immobilized RuBisCO for glucose precursor production
Authors: Zhu Yujiao , Chen Qingming , Tsoi Chi Chung , Huang Xiaowen , El Abed Abdel , Ren Kangning , Leu Shao-Yuan , Zhang Xuming
Published: May 2022

Reusable RuBisCO-immobilized microfluidic reactors are used to synthesize the glucose precursor from CO2 and restore >95% of activity after refreshing.
Hydroxysafflor yellow A triggered a fast-to-slow muscle fiber-type conversionviaregulating FoxO1 in myocytes
Authors: Sun Yujie , Wang Zhijun , Nie Chenzhipeng , Xue Lamei , Wang Yu , Liu Jinxin , Fan Mingcong , Zhang Duo , He Ruikun , Zhang Xuguang , Qian Haifeng , Chow Billy K. C. , Li Yan , Wang Li
Published: May 2022

Hydroxysafflor yellow A (HSYA) is the main bioactive component of safflower and has been reported to have significant health-promoting abilities.
Resveratrol alleviates enterotoxigenicEscherichia coliK88-induced damage by regulating SIRT-1 signaling in intestinal porcine epithelial cells
Authors: Luo Xin , Wu Shizhe , Jia Hai , Si Xuemeng , Song Zhuan , Zhai Zhian , Bai Jun , Li Jun , Yang Ying , Wu Zhenlong
Published: May 2022

This study found that resveratrol pretreatment attenuated porcine intestinal epithelial cell damage caused by enterotoxigenicEscherichia coli(ETEC) K88in vitroand the protective effects of resveratrol were associated with SIRT-1 signaling.
Corrosion protection performance of silicon-based coatings on carbon steel in NaCl solution: a theoretical and experimental assessment of the effect of plasma-enhanced chemical vapor deposition pretreatment
Authors: Delimi Amel , Ferkous Hana , Alam Manawwer , Djellali Souad , Sedik Amel , Abdesalem Kahlouche , Boulechfar Chérifa , Belakhdar Amina , Yadav Krishna Kumar , Cabral-Pinto Marina M. S. , Jeon Byong-Hun , Benguerba Yacine
Published: May 2022

Using a plasma-assisted chemical vapor deposition (PACVD) process, carbon steel samples were coated with an organosilicon layer less than 2.5 microns thick.
One-pot synthesis of finely-dispersed Au nanoparticles on ZnO hexagonal sheets for base-free aerobic oxidation of vanillyl alcohol
Authors: Lin Peng , Shang Rong , Zhang Qizhao , Gu Bang , Tang Qinghu , Jing Fangli , Cao Qiue , Fang Wenhao
Published: May 2022

Highly-dispersed and small-sized Au (2.2 nm)/ZnO catalyst was prepared using metal ions and 2-methylimidazole by one-pot coordination–calcination method, and showed superior performances for vanillin synthesis via base-free oxidation.
Coupling effect between hole storage and interfacial charge transfer over ultrathin CoPi-modified hematite photoanodes
Authors: Wang Pengpeng , Ding Chunmei , Li Dongfeng , Cao Yimeng , Li Zheng , Wang Xiuli , Shi Jingying , Li Can
Published: May 2022

The decoration of CoPi over Fe2O3 can effectively suppress charge recombination via the release of Fermi level pinning; its coupling effect between hole storage and rapid charge transfer should be responsible for the photocurrent improvement.
α-Rhenabenzofuran with nonaromatic T0and aromatic S1states
Authors: Tang Junping , Wang Yilun , Bai Wei , Zhou Yan , Yu Wenyan , Li Yang
Published: May 2022

The α-rhenafuran ring is nonaromatic in T0but aromatic in S1, while the benzo unit is aromatic in both states.
A new rare-earth oxyborate Ba3BiPbEuO(BO3)4and the luminescence properties of the Ba3BiPbY1−xEuxO(BO3)4phosphors
Authors: Chen Xuean , Bian Ruru , Xiao Weiqiang , Song Xiaoyan
Published: May 2022

A new borate Ba3BiPbEuO(BO3)4was synthesized and characterized and the luminescence properties of Ba3BiPbY1−xEuxO(BO3)4(0 ≤x≤ 1) were investigated.
The evolution of surface structure during simulated atmospheric ageing of nano-scale coatings of an organic surfactant aerosol proxy
Authors: Milsom Adam , Squires Adam M. , Skoda Maximilian W. A. , Gutfreund Philipp , Mason Eleonore , Terrill Nicholas J. , Pfrang Christian
Published: May 2022

A nano-scale proxy for atmospheric surfactant organic films undergoes changes in morphology and hygroscopicity during simulated atmospheric processing.
Kidney functional stages influence the role of PEG end-group on the renal accumulation and distribution of PEGylated nanoparticles
Authors: Xin Yanbao , Hou Yue , Cong Xiuxiu , Tan Huizhu , Wang Jialiang , Mao Kuirong , Wang Xin , Liu Feiqi , Yang Yong-Guang , Sun Tianmeng
Published: May 2022

Both PEG end-groups and kidney function damage show significant impacts on the interactions between PEGylated nanoparticles and kidneys.
Antiviral activity of chitosan nanoparticles encapsulating silymarin (Sil–CNPs) against SARS-CoV-2 (in silico and in vitro study)
Authors: Loutfy Samah A. , Abdel-Salam Ahmed I. , Moatasim Yassmin , Gomaa Mokhtar R. , Abdel Fattah Nasra F. , Emam Merna H. , Ali Fedaa , ElShehaby Hasnaa A. , Ragab Eman A. , Alam El-Din Hanaa M. , Mostafa Ahmed , Ali Mohamed A. , Kasry Amal
Published: May 2022

To develop a specific treatment against COVID-19, we investigated silymarin–chitosan nanoparticles (Sil–CNPs) as an antiviral agent against SARS-CoV-2 using in silico and in vitro approaches.
Functional property optimization of sodium caseinate-based films incorporating functional compounds from date seed co-products using response surface methodology
Authors: Aloui Hajer , El Ouazari Khawla , Khwaldia Khaoula
Published: May 2022

Novel sodium caseinate films incorporating furfural and date seed oil (DSO) were produced. The effects of furfural and DSO contents on the functional and physical properties of the composite films were assessed using response surface methodology.
Photoactive Zr-aromatic hybrid thin films made by molecular layer deposition
Authors: Rogowska Melania , Bruzell Ellen , Valen Håkon , Nilsen Ola
Published: May 2022

Photoactive organic–inorganic hybrid thin films for potential use in antimicrobial photodynamic therapy (PDT) were fabricated based on Zr clusters and three different aromatic dicarboxylic acid linkers using the molecular layer deposition (MLD) technique.
Thrombin-linked aptamer assay for sensitive detection of immunoglobulin E in sandwich format
Authors: Guo Li-Min , Zhao Qiang
Published: May 2022

Thrombin linked aptamer assay for detection of immunoglobulin E (IgE) in a sandwich format using thrombin as an enzyme label.
Nanomicelles-in-coaxial nanofibers with exit channels as a transdermal delivery platform for smoking cessation
Authors: Yahia Sarah , Abo Dena Ahmed S. , El Nashar Rasha M. , El-Sherbiny Ibrahim M.
Published: May 2022

A transdermal drug-delivery coaxial nanofibers-based system was developed for the delivery of varenicline (VAR) for smoking cessation. The nanofibers contain exit channels to allow the release of VAR.
From phosphorescence to delayed fluorescence in one step: tuning photophysical properties by quaternisation of an sp2-hybridised nitrogen atom
Authors: Klimash Anastasia , Prlj Antonio , Yufit Dmitry S. , Mallick Abhijit , Curchod Basile F. E. , McGonigal Paul R. , Skabara Peter J. , Etherington Marc K.
Published: May 2022

Switching on thermally activated delayed fluorescence through quaternisation of an sp2-hybridised nitrogen atom.
The synapse: people, words and connections
Authors: Tansey E. M.
Published: May 2022

This paper provides a review of some of the major historical developments in synaptic research and neurotransmission since the first appearance of the word ‘synapsis’ in 1895. The key contributions and inter-relationships of several significant scientists and Nobel Laureates, including Charles Sherrington, Henry Dale, Edgar Adrian and John Eccles are highlighted, and the influence of others such as John Langley and Thomas Elliott is stressed. A recurrent theme is the importance of language and the creation of new words.
Grouping technology and a hybrid genetic algorithm‐desirability function approach for optimum design of cellular manufacturing systems
Authors: Al‐Zuheri Atiya , Ketan Hussein S. , Vlachos Ilias
Published: May 2022

Cell formation and machine layout in cellular manufacturing systems (CMs) design are considered as a crucial, yet hard and complex decision process. Owing to the nondeterministic polynomial time (NP) and combinatorial class of this problem, this paper presents an innovative heuristic approach to re‐arrange machines enabling the minimisation of inter/intra‐ cellular movements as well as the cost of material handling between machines, therefore increasing group efficiency and efficacy. The heuristic approach, which is based on group technology, genetic algorithms, and desirability function, determines the optimal solution for flexible cell formation and machine layout within each cell. Flexibility refers to an explicit improvement using the desirability function to modify cell design by altering the ratio data; that is, the weight factor to meet demand flexibility. Specifically, the desirable function proposed here to provide the optimal setting of the weighting factor as a key factor which enables CMs design the flexibility to control the cell size. Promised results were obtained when the proposed approach was applied to a case study. Practical implications and recommendations are provided for use by decision makers in the design of CMs.
Experimental study on dynamic response characteristics of isolated‐span transmission lines after ice‐shedding
Authors: Huang Guizao , Yan Bo , Guo Yujun , Zhang Bo , Wu Guangning
Published: May 2022

The dynamic response characteristics, including maximum jump height and unbalanced tension, of isolated‐span transmission lines after ice‐shedding are investigated by means of experiments. A reduced‐scale modelling method for ice‐shedding from conductor lines is presented and verified with numerical simulations and full‐scale test results in the literature. A parameter study on dynamic responses of isolated‐span conductors under three ice‐shedding scenarios, including whole span ice‐shedding, partial ice‐shedding and unzipping ice‐shedding, is carried out by means of reduced‐scale modelling tests. The effects of these parameters on the maximum jump height at typical positions and unbalanced tension in the tension tower are obtained. It is observed that the partial ice‐shedding scenario may be the worst situation for electrical insulation clearance rather than the whole span ice‐shedding scenario. Moreover, the position of maximum jump height along the span of isolated‐span transmission lines after ice‐shedding could be at around 2/5 of span length, which is different from the conventional opinion that the position is at the midpoint. The results may provide a foundation for the defining of the insulation clearance for an isolated‐span transmission line and the structure design of tension tower arms in an iced zone.
The Construction of Chinese Culture in English Teaching from the Perspective of the Internet of Things
Authors: Zhao Wei
Published: May 2022

At present, the country pays more and more attention to English teaching(ET). In the process of ET, Chinese culture(CC) is the basis for students to learn English, and it is also an important way to cultivate cross-cultural communication skills and comprehensively use modern language to conduct thinking activities and solve practical problems. However, the reality is that ET is facing more and more serious cultural deficiencies. English learners are constantly exposed to Western culture and gradually weaken their Chinese cultural identity. Therefore, it is very necessary and urgent to carry out the construction of CC in ET. At the same time, the Internet of Things is a product of the emergence and development of the information society. It can not only realize the sharing and utilization of information resources, but also meet the learning needs of students through various intelligent terminal devices, thereby further expanding the scope of application in ET and improving the level of educational informatization. Therefore, it becomes more and more meaningful to study the construction of CC in ET in the context of the development of the Internet of Things. This article uses questionnaire surveys and data analysis methods to understand people's views on the introduction of CC into ET through questionnaire surveys, so as to further complete the work of constructing CC in it. According to the survey results, among the 120 interviewees, 46 people think it is necessary to infiltrate CC in English learning, while only 7 people think it is unnecessary. It can be seen that, in the eyes of most of the interviewees, it is necessary to understand and learn CC in ET, and it will also be of great help to English learning.
Study on Detection Technology of Antibiotic Content in Soil
Authors: Jian Yi , Wei Jing , Hou Jia , Li Rui , Chen Lianhui
Published: May 2022

Since the discovery of antibiotics, has been widely used in the treatment of epidemic diseases, affected by this, a large number of antibiotics into the environment of the media, affecting environmental safety. Therefore, it is very important to detect the content of antibiotics in soil accurately and scientifically. At present, microbial assay, immunological analysis and physical and chemical assay are widely used in the determination of antibiotics in soil. The source and ecological risk of antibiotics in soil are studied, the concrete application of the technology is discussed systematically.
Artificial Intelligence Technology to Explore the Future Development of Traditional Handmade Leather Goods
Authors: Qi Zirui
Published: May 2022

In recent years, artificial intelligence technology has developed faster and faster, and many industries need to rely on artificial intelligence technology for transformation and upgrading. Therefore, research on artificial intelligence technology is of great significance to the development of traditional handicraft industry. The purpose of this article is to study the future development and exploration of artificial intelligence technology in traditional handmade leather goods, and to specifically propose the use of intelligent new technologies to enhance personal experience, use new Internet media to innovate traditional handmade leather goods display, and expand composite types. The number of talents and other suggestions to promote the development of traditional handmade leather goods. Combining the problems of the personalized handmade leather goods style system, the decision support system mode is adopted to effectively combine the traditional handmade leather goods quantification, feature extraction and traditional handmade leather goods recommendation. In-depth research on user preference model and handmade leather goods recommendation algorithm, and established a model of personalized traditional handmade leather goods style system. Experimental results show that 9 out of 10 users are satisfied with the handmade leather goods recommended by the system after 5 interactions.
Application of Computer Network Multimedia Technology in Vocal Music Teaching Mode
Authors: Liu Xizhi
Published: May 2022

Nowadays, with the continuous development of the times, multimedia technology(MT) is rapidly infiltrating people's lives, and people are paying more and more attention to multimedia teaching, which has been well applied in vocal music(VM) teaching. Since VM is a highly practical and relatively abstract subject, it is necessary to organically combine theory with practice. In addition, nowadays people have higher and higher requirements for music aesthetics, and the enrollment scale of VM majors is increasing, making traditional teaching methods no longer able to meet the needs of vocal talents. Because the network MT can well solve the problems in the traditional classroom and make up for the shortcomings, it has played an important role in improving classroom efficiency, improving the quality of teaching and teaching effects. At the same time, the use of modern methods for VM teaching can also provide teachers with more convenience. Therefore, under this background, it is necessary to combine modern education methods with VM teaching mode(VMTM) to realize the transformation of VMTM. This article uses questionnaire survey method and data analysis method to make use of the advantages of computer network MT to make VM teaching simpler and more intuitive, so as to achieve better VM teaching effects. According to the survey results, most interviewees believe that the application of computer network MT in the VMTM has certain effects and brings a lot of vitality to the development of the course.
Logistics Transportation Time Optimization Based on Fuzzy Particle Swarm Optimization
Authors: Zhang Bingqing
Published: May 2022

The fuzzy particle swarm optimization (FPSO-RRB- algorithm is used to solve the logistics transportation time optimization problem, a three-dimensional particle coding method based on receiving point, particle position sequence and particle position rounding operation is proposed, the results are compared with those of fuzzy particle swarm optimization algorithm. The experimental results show that the fuzzy particle swarm optimization algorithm can effectively optimize the logistics transportation time.
A Study on the Application of Computer-assisted Translation in Henan Museum Translation
Authors: Sun Yanan
Published: May 2022

Museum is the Treasure House of human history and culture, which bears the responsibility of inheriting history and spreading culture. The Henan Museum is also attractive because of its rich and profound traditional culture. In order to make the world fully understand Henan culture, it is necessary to actively explore scientific and reasonable English translation strategies based on Henan Museum text features and incorporating Trans-cultural diffusion features. In the context of intelligent translation scenarios, the advantages of computer-aided translation are becoming more and more obvious, and the full play of Computer-assisted translation will provide effective support for improving the quality of Henan Museum translation.
Research on a New Mode of Oral English Teaching Based on Computer Network Assistance
Authors: Liu Yajie
Published: May 2022

Oral English teaching is an important form of cultivating students' English accomplishment and improving their English learning effect. In the context of intelligent education, by giving full play to the advantages of computer network and actively reconstructing the new mode of Oral English teaching, we will, on the basis of optimizing the form of oral English teaching and by integrating high-quality oral English teaching resources, to promote students to participate in oral English learning and speaking practice in a conscious and spontaneous way. Based on the analysis of the existing problems in spoken English teaching, this paper puts forward the construction and implementation of a new spoken English teaching model based on computer network.
Construction Technology Safety Management under the Background of BIM and Information System Modeling
Authors: Liu Yang
Published: May 2022

The construction industry is the driving force and pillar of my country’s economic development. In recent years, due to the increasing difficulty of construction and long construction period, the traditional construction technology safety management mode is no longer suitable for modern construction projects. Construction safety accidents also occur frequently and threaten The personal safety of construction workers has caused a serious negative impact on construction enterprises. The application of BIM technology and building information system has created a new management model for construction safety management in the construction industry, greatly improving the level of engineering construction safety management, and also marking the construction industry's march toward a new era of technical information.
Application of Multimedia Network Technology in Preschool Education Informatization
Authors: Yu Yang
Published: May 2022

By means of information, fully integrating high-quality teaching resources and promoting the construction of pre-school education information, it is not only a change of promoting education and teaching mode, but also a vivid embodiment of the scientific upgrade of the concept of home interaction. In the informationization of pre-school education, the full application of multimedia network technology has broadened the space of pre-school education, built a home-based cooperative bridge, and created a new intelligent pre-chemical education environment, the ecology of preschool education has been completely reconstructed. This paper analyzes the application value of multimedia network technology in preschool education informationization, and puts forward some concrete application strategies.
Green ultrasound-assisted extraction of astaxanthin from fermented rebon shrimp (cincalok) using vegetable oils as solvents
Authors: Prayitno Dwi Imam , Dewi Eko Nurcahya , Pringgenies Delianis , Brotosudarmo Tatas Hardo Panintingjati
Published: May 2022

Cincalok is a typical food from West Kalimantan made from fermented rebon shrimp containing astaxanthin, the most potent antioxidant in nature. This study investigated an efficient method for extracting astaxanthin from the cincalok using vegetable oils as solvents. Olive, sesame, grape seeds, coconut, and virgin coconut oil were used as alternative solvents. The effect of various parameters on extraction yield was also studied. N-hexane and acetone were also used for comparison. Amplitude level and extraction time were the factors investigated concerning extraction yield. Comparative studies between traditional extraction methods and extraction assisted by ultrasonication have also been carried out. The astaxanthin content as total carotenoids in oil extract was analyzed using a UV-vis spectrophotometer with a standard external method. The optimum ultrasound-assisted extraction condition of astaxanthin from cincalok was 40% amplitude for 3  minutes, with 100.62  μg/g of astaxanthin extraction yield when used virgin coconut oil as a solvent. In this way, oils enriched with astaxanthin are produced.
Research on problems and countermeasures in reading skills training of boys majoring in preschool education
Authors: Liu Hui
Published: May 2022

At present, reading teaching is a very important content in preschool education teaching, which plays an important role in improving the comprehensive quality of students. But at present, there are still many problems in reading course for boys majoring in preschool education. Starting from boys’ own learning characteristics, this paper finds out the problems, explores the reasons, seeks countermeasures, and puts forward corresponding solutions.
Research on prediction of critical decision-making behavior in online examination
Authors: Lu Zhijie
Published: May 2022

Starting with the study of the positive and negative factors affecting candidates’ decision-making in the critical answer period of online examination, this paper preliminary establishes the prediction model of critical answer decision-making behavior of online examination. Taking the computer-based examination practice of academic level examination in a domestic city as an example, this paper makes an empirical study on the prediction model of critical answer decision-making behavior through data analysis and questionnaire survey, and verifies the relevant assumptions.
Practice and exploration of college students’ labor education in network era
Authors: Miao Yadong
Published: May 2022

The popularity of the Network makes college students gradually rely on the Network, comfortable life and parents spoil many college students lack normal labor skills, labor consciousness is weak. This paper investigates and analyzes the current situation of college students’ labor education in the network era, combines labor education with the network, makes full use of the network, explores the implementation path to improve the effect of college students’ labor education, improves college students’ labor skills, and cultivates excellent college students with all-round development of morality, intelligence, physique, beauty and labor.
Android application development teaching reform based on innovation ability training
Authors: Ma Huaizhi
Published: May 2022

Under the background of training and construction of innovative talents in new engineering, taking the Android application development course of Internet of things engineering in our university as an example, this paper explores the innovative ability training mode of programming application development courses under the background of new engineering from five aspects: project-based course teaching, enterprise training, competition driving, development project inspection and improvement, and diversified assessment methods, Gradually formed a “five in one” new teaching mode of two wheel drive. After two years of teaching reform practice, it has achieved obvious reform results from the aspects of students’ learning enthusiasm, students’ participation in competition and project development ability, and achieved the teaching effect of cultivating innovative ability.
Study on teaching and learning strategies of MOOC-based college English teaching reform from the perspective of game theory
Authors: Shen Xin , Bian Tao
Published: May 2022

In China, a new round of college English teaching reform is being conducted in the way of integrating MOOC-based teaching mode. However, the effect is not ideal because lack of optimal strategies. In order to improve the efficiency, this article analyzed the teaching and learning strategies of using MOOC in college English teaching reform from the perspective of game theory. Teachers and students were set as the two sides of “teaching and learning” game. Potential game contradictions have been analyzed. As a result, many appropriate and imaginative strategies have been devised to achieve a “win-win” situation for teachers and students and maximize the efficiency of the teaching reform.
Research on recognizing required items based on opencv and machine learning
Authors: Ma Qingyun , Huang Xubin
Published: May 2022

Starting from the background of the outbreak of New Coronavirus, in order to realize the function of automatically identifying the required items by machine, the support vector machine algorithm in the neural network and the traditional computer vision algorithm opencv were used. The software developed by pycharm and python programming language was used to compile automatically a software to identify whether the required items were filled out. And on the basis of completing the software, it is connected to the embedded device high-speed clapper. It is applied to Fuzhou Customs to help the customs staff review the health form and declaration card of inbound and outbound passengers, which not only saves the time of staff and passengers, but also contributes to the prevention and control of epidemic situation to a certain extent.
Patent research front mining of GaN semiconductor based on the LDA model
Authors: Ma Ruijiao , Zhang Yuntao , Chen Jiakuan , Wen Haoyu
Published: May 2022

This paper aims to identify and analyze research front topics of GaN semiconductor. The research method was to mine and identify topics based on GaN patent data by using the LDA model and topic intensity index. Finally, through experiments, we obtained and analyzed 4 research front topics. The results provided informatics support for revealing the research status and trend of GaN semiconductor.
Key technologies and international trends in EDA field of digital IC design: a patent analysis
Authors: Li Weihui , Wen Haoyu , Duan Peiji
Published: May 2022

Currently, Electronics Design Automation (EDA) software tools are highly monopolized internationally. In China, EDA suffers from the pain of “stuck neck”. This paper will find out the key technologies in the EDA field through 3D sand table clustering algorithm, and analyze a series of patent data of monopoly three companies (Synopsys, Cadence, Mentor Graphic), in order to help local EDA enterprises perceive the technology status and development trend of the international EDA field.
Automatic dosing system based on reclaimed water treatment
Authors: Wang Ming , Gu Jiatao
Published: May 2022

This paper introduces an automatic dosing system used in the reclaimed water reuse equipment for river water treatment. The automatic dosing system can replace the manual regulation mode. In view of the shortcomings of manual dosing in the sewage treatment system, through the study of sewage inlet and outlet flow, online water quality index and other factors. Fully combine feedforward control, feedback control, correction of dosing ratio and other control methods, and use PLC communication and control model to reasonably transform the dosing system, so as to achieve the purpose of intelligent sewage treatment.
Research on innovation and practice of personnel training model for applied accounting under digitalized and intellectualized environment-A case study of Xi’an eurasian university
Authors: Hou Yurong , Yang Xuxing , Zhang Wei
Published: May 2022

The new requirements are proposed to the quality and quantity of personnel training of accounting professional under the digitalized and intellectualized environment. The existence of accounting has great dependence on market demand and the social value, thus accounting professionals should follow the talent requirements closely which include data management, data analysis, intelligent tool application and development under the intellectualization era, and further accelerate intelligent financial personnel training to a higher level of evolution. This paper takes the accounting major in Xi ’an Eurasian University as the research object, which practice deep integration on digital intelligence technology and accounting professional education. Expecting to provide new ideas and typical cases for the construction of applied Accounting major.
Current situation analysis and development strategy of listed private enterprises in Dalian
Authors: Li Tingting , Zhang Zhenning , Lu Ping
Published: May 2022

The overall development of private enterprises in Dalian operates well. Especially, after the “opinions on creating a better development environment to support the reform and development of private enterprises” issued by the State Council, more and more private enterprises were encouraged to reform, financing and list according to the relevant policy. In this paper, we described the development status of private enterprises in Dalian, following with development and challenges of private enterprises, and eventually proposed the development strategies for them. The informative study provide the effective data and opinions on healthy developments of private enterprises in Dalian.
How to stand out in the “lemon market”? application of signaling theory in live streaming commerce
Authors: Yao Tanyue , Mo Li
Published: May 2022

Live streaming commerce innovatively combines e-commerce and live streaming, and it is booming. However, like traditional e-commerce, live streaming commerce is facing challenges from “lemon market”. The article applies signaling theory from a perspective of game theory and finds that high-quality sellers can stand out in the market by releasing two kinds of additional signals, which are signals that increase cost and signals that increase risk, and proposes relevant research hypotheses. Then, the researcher designs an experiment to explore how the additional signals affect the audiences’ purchase intention. The data collected shows that additional signals increasing cost can improve audiences’ purchase intension through improving the product quality and sellers’ credibility perceived by the audience while additional signals increasing risk cannot achieve the same effect. At the end, possible explanations for the unproven hypothesis and further research directions are provided.
Application of PBL pedagogy based on virtual reality technology in the teaching of sports anatomy
Authors: Hou Na , Samsir Safwan
Published: May 2022

Purposes To explore the teaching effect and value of virtual reality technology combined with PBL teaching method applied to sports anatomy.Procedures 119 undergraduate students majoring in physical education of Xianyang Normal University were selected as research objects.Randomly divided into experimental group (N=59) and control group (N=60).Methods The experimental group used virtual reality technology combined with PBL teaching method, and the control group used traditional teaching method to teach. At the end of the course, the test scores of the two groups and the evaluation results of self-learning effect were statistically analyzed. Results the test scores of the students in the experimental group were significantly higher than those in the control group (P<0.05); Most of the items in which the experimental students self-evaluated the learning effectiveness were also superior to the control group (P< 0.05), and the difference was statistically significant. Conclusions VR technology combined with PBL teaching method can improve academic performance, enhance students’ learning interest and independent learning ability, and cultivate students’ ability to find and solve problems. It is a teaching method worth promoting.
Research on bin packing problem based on improved immune clonal algorithm
Authors: Zhang Guangya , Xiao Li
Published: May 2022

An improved immune cloning algorithm based on clustering competition is proposed, which ensures the diversity of antibody population, effectively improves the convergence speed of the algorithm and avoids immature convergence. The algorithm is applied to packing problem and achieves good results.