Search all articles

This paper presents a U-shaped slot RMSA Antenna (rectangular microstrip patch antenna) tailored for wearable health monitoring systems, with an emphasis on global connectivity. The design process addresses key factors like flexibility and cost-effectiveness, which are critical for wearable antenna applications....

Five kinds of Brønsted-acidic ionic liquids with different nitrogen-contained chemical groups and different anions were synthesized, and were respectively characterized by nuclear magnetic resonance(NMR), infrared spectrum (IR), electrospray ionization mass spectrum (ESI-MS) and thermogravimetry(TG....

Developing a low-carbon economy is a necessary path for the Chengdu-Chongqing Economic Circle to achieve the goal of high-quality development. This study measured the level of synergistic development of the two urban economic circles in Chengdu and Chongqing and established a fixed-effect model to verify...

This paper selected listed companies in China before 2010 as the research sample, using the data of 2010-2015 to analyze the influence of equity structure on the enterprise innovation efficiency from the equity nature, ownership concentration, ownership balance degree aspects in China. The study found...

Under the guidance of China's reform and opening-up and the background of today's economic globalization, opening to the outside world has become one of China’s economic development priorities. For eastern China with the highest opening degree, cities’ actual use of foreign direct investment...

A novel sulfur ion exchange fiber - thiosemicarbazide chelating ion exchange fiber (TSCIEF) was prepared by nucleophilic substitution reaction of chloramethylated polypropylene graft styrene (CPP-g-St) fiber and thiosemicarbazide, using anhydrous ethanol as swelling agent. The structure of TSCIEF was...

This study makes an important theoretical and empirical contributions to the ongoing discussion on the standardization of enterprises aiming to seize the market opportunities. We comprehensively investigate the impact of standards on the enterprise’s ability to occupy the market by using the data of...

Ocean literacy is a skill needed to conserve our ocean. However, there is vaguely research about it, including research on middle school students. The aim of this research is to investigate the need for ocean literacy to teach in a science classroom for middle school students in Indonesia. This research...

Choosing unhealthy food is one of problems that occur to many children. Choosing snacks that are not in health standards would cause health problems. The purpose of this study identified change of attitude, behavioural in choosing healthy snacks through health education with the educative game media...

, -fluoromethylene-ATP is advantageously obtained via pho-sphorylation of corresponding ADP analogue using catalytic NTP(N=A or U),PEP,nucleoside diphosphate kinase(NDPK), and pyruvate kinase(PK). In order to find the optimized reaction conditions of synthesis of , -CHF -ATP via the catalysis of ATP...

The article focuses on the empirical study of within-country migration intention in young age. 136 people, aged 17-35, who live in the city Komsomolsk-on-Amur, Russia, took part in the study. This study examines the role of satisfaction with different life domains in desire to leave the city and move...

U beam steel arch has widely been used in nonferrous metal mines support especially in deep mining due to its ductile and high bearing capacity. This paper aimed at the simulation analyses based on the finite element method for U beam steel arch production. The comparison of the bearing capacity between...

Safety is crucial in the shipping industry, however in the current export container activity there are many factors that can cause an accident. To prevent an accident, regulation play an important role. With regulation, safety can be implemented to decrease the risk. Therefore, IMO has amended the SOLAS's...

With advances in medical technology and scientific knowledge, human life expectancy continues to rise, making the challenge of achieving health aging increasingly prominent. While private medical insurance serves as a vital supplement to public healthcare systems, the role of social networks in shaping...

Women have a strategic role in the process of holding elections. Baik as an election organizer, election participant and voting public. The current condition of women’s representation is still dominated by the spirit of procedural fullness, the achievement of women’s representation in the membership...

3-triethoxysilylpropylamine (KH550) polymer was coated on quartz fibers by a simple dipping process without any complex chemical treatments in order to increase the bonding strength between quartz fibers and boron doped silicone resin matrix. The effect of coating on the interface of quartz fiber reinforced...

Industrial appearance defect detection is a key aspect of quality control in smart manufacturing. The core challenge lies in how to effectively apply models that perform well in laboratory environments to complex, dynamic, and unpredictable real-world industrial scenarios. This challenge is specifically...

Taxation is an important distributive policy tool that influences corporate behavior. This paper takes 4,051 A-share listed companies from 2009 to 2022 as a research sample to examine the impact of corporate income tax burden on corporate charitable donations. The study finds that the impact of corporate...

Polyurethane prodrugs with different drug contents were synthesized using polycaprolactone, hexamethylene diisocyanate and ciprofloxacin. The thermal analysis of the materials was carried out by DSC and TG. Results showed that the crystallinity of the materials reduced as the drug contents increased...

The Chinese manufacturing industry currently faces unprecedented opportunities and challenges related to its development. The choice of an appropriate development approach not only affects the upgrading of the manufacturing industry itself, but also influences the restructuring and evolution of the Chinese...

A novel adsorbent was prepared by grafted the Dibenzo-18-Crown-6-Ether (DB18C6) on D564 resins and characterized by Thermogravimetry (TG) and Fourier Transform Infrared Spectroscopy (FTIR). Adsorption of Sr2+ from aqueous solutions was investigated in batch method as a function of contact time, concentration...

This study aims to improve the activities of the practicum results through the use of SAVI learning models in grade 4 elementary school students. The research method used was a quasi experiment with a nonequivalent pretest-posttest control group research design. The study period was 3 days in the control...

A hybrid CNN-GA framework for predicting energy consumption of public buildings This study combines the deep learning capabilities of CNN with the optimization strengths of GA to achieve a higher prediction accuracy and execution efficiency in energy consumption forecasting. Utilising the malleable nature...

In order to study the pyrolysis process of Ethylene Propylene Diene Monomer (EPDM) insulation material and its compression mechanical behaviour under high strain rates, the thermal stability of EPDM was analysed by TGA in the first place. Based on the TG curve and the thermal degradation temperature,...

With microcrystal muscovite (MCM) as the carrier, butyl titanate as the source of titanium, acetic acid as the inhibitors, copper nitrate as dopant, Cu-doped nano-TiO2/MCM composites were prepared by the sol–gel method. Then the composites were calcined at 500 oC for 2 hours. The samples were characterized...

The results of the study of differences in the educational activities of fathers of different nationalities are presented. Based on the concept of system-activity approach, educational activity is inspected in three aspects: motivational needs, executive, control and evaluation. In the study the author's...

This article dispels some of the most popular myths about the "knowledge society" and the delusions they create regarding intellectuals and intellectual activities. The analysis makes use of both research (M. McLuhan, M. Foucault, U. Eco, R. Collins) and literary (M. Bradbury) sources. Ideally, the reader...

This article calculates the green development index of manufacturing industries in China from 2003 to 2020 by constructing the index system for evaluating green development. Based on the input-output table data of OECD database, it obtains the GVC status index and digital input of China manufacturing...

MgAl2O4 spinel, as support of the 10Ni/MgAl2O4 catalyst which used for coke oven gas dry reforming, was prepared by sol-gel, coprecipitation and urea hydrolysis method. The catalysts were prepared by impregnation. The MgAl2O4 and 10Ni/MgAl2O4 were both calcined at 800 oC for 5 h and the samples were...

This study presents the results of a comprehensive investigation into the agrobiological, morphological, and technological characteristics of multiple table grape cultivars cultivated in the Absheron district of Azerbaijan. The research encompassed both local varieties, including Ag Pishraz, Gara Kechimemesi,...

The article proves the validity of the application of the regional-ethnic approach to foreign language education in the Republic of Sakha (Yakutia), which is characterized by the presence of the national-regional component in all spheres of individual life activity. The authors identify a number of features...

Tujia is a nation with a long history in China. Tujia traditional village in Chongqing pays more attention to "harmony of man with nature" in the landscape pattern of the site, with seven elements like " Mountains, forests, fields, roads, water, villages", and in the courtyard space, there are some space...

This article analyzed the impact mechanisms of different dimensions of network routines on enterprise’s innovation performance through the survey to 291 sample enterprises of China. Findings show that: in innovation networks, cooperative innovation behavior agreement has an inverted U impact on enterprise’s...

Several SO3H-functionalized acidic ionic liquids (ILs) were synthesized by two-step method, using 1, 3-propane sulfone and 1, 4-Butanesultone as raw materials, respectively. It is noteworthy that the ionic liquid using 2-ethyl-4-methylimidazole as source has not been reported. Esterification of 1-butanol...

Combined with the ground-source heat pump engineering in Hefei, a 100-meter-deep vertical u-shaped buried pipe was analyzed, and the experimental study on the heat transfer performance of different operating mode, the unit energy efficiency and the change of soil temperature field was taken under a typical...

The varieties and interspecies hybrids of potato selected on the basis of Ural Scientific Research Veterinary Institute Federal State Budgetary Scientific Institution "Ural Federal Agrarian Scientific Research Centre, Ural Branch of the Russian Academy of Science" (Ural national research institute of...

Parental divorce has a various impact for each individuals, especially in young adulthood. Young adults with divorced parents are reported to be having an intimacy and relationship problems, one of them is their attitudes toward marriage. This study is aimed to compare attitudes toward marriage among...

This study aims to produce a ubiquoitous learning (u-learning) training design for students who are compiling thesis and final project using massive open online courses (MOOC). The research method uses research and development of the ADDIE model. Data collection was obtained from expert assessments of...

This article examines the effects of real businesses’ financial asset allocation on enterprise value using the Shanghai and Shenzhen A-share listed companies from 2012 to 2021 as the research sample. According to the study, there is an ongoing “inverted U-shaped” relationship between enterprise value...

Recently many works have proposed different ways of obtaining orders from associative fuzzy logic operations. While the order ⊑ investigated by Karaçal and Kesicioğlu [10] was modified in [6] to obtain orders on uninorms, this order relation was based on the sub-domains of the arguments. Recently in...

Based on the operation of a Ground Source Heat Pump (GSHP) in Hefei, the heat exchange of the 100m depth vertical u-shaped pipe buried in the ground was analyzed, and the heat transfer performance, efficiency of the system and temperature variation of the ground were studied experimentally under the...

The maximum likelihood estimator (MLE) and uniformly minimum variance unbiased estimator (UMVUE) for the parameters of a multivariate geometric distribution (MGD) have been derived. A modification of the MLE estimator (modified MLE) has been derivedin which case the bias is reduced. The mean square error...

Duplicate code fragments, known as code clones, are a widespread phenomenon in software development, often causing difficulties in the maintenance and evolution of software systems. Micro-clones refer to short code fragments (i.e., less than five lines in length), which are particularly prevalent in...

This study investigates the pitting corrosion behaviors of hot and cold rolled, laser beam welded (LBW) niobium-stabilized 5A duplex stainless steel (DSS). The welded joints were produced using the laser parameters of 3.5 kW power and 4.0 m/min speed to achieve full penetration and minimal heat-affected...

The organosilicon-acrylic resin/LDHs nanocomposite was prepared from acrylate, organosilicon Mg-Al-AA-LDHs as well as emulsifier etc with emulsion polymerization methods. The samples prepared were characterized by optical , thermal and gas barrier capabilities testing, Results show the samples were nanocomposion...

From the perspective of the development level of green finance, this paper measures the greenwashing behavior of listed high-carbon enterprises based on their data from 2015–2018, and explores the impact of green finance on the greenwashing behavior of enterprises through the mediating effect model....

Rotary tables are important machine tools in fields of angle measurement and attitude simulation. Nonmagnetic rotary table with two axes is designed and researched instead of traditional magnetic and electromagnetic measuring and control systems in this paper. T-U pattern is adopted in structural design...

We study the modified Korteweg-de Vries equation posed on the quarter plane with asymptotically t-periodic Dirichlet boundary datum u(0,t) in the sense that u(0,t) tends to a periodic function g̃0 (t) with period τ as t → ∞. We consider the perturbative expansion of the solution in a small ε > 0....

Rigid polyurethane foams (RPUFs) were prepared by heteroaromatic polyol as the matrix polyol, methylphosphonate (DMMP) was added to improve its flame retardancy, and the relative performances were studied. Thermal stability were measured by dynamic mechanical analysis (DMA) and thermo gravimetric analysis...

The COVID-19 pandemic situation in 2020 puts the entire educational sector into online activity globally. The communication process in teaching and learning activity has moved into computer-mediated communication and the explosion of the online classroom has become the most favorite media. One of the...