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This paper puts forward a design of frequency synthesizer based on DDS for Ka-band radar signal simulation. RF signal is generated through the AD9854 DDS chip driving the PLL and VCO. The testing results showed that this Ka-band frequency synthesizer has low phase noise and wider bandwidth, and can generate...

In order to strengthen the study of complex war issues in the era of intelligence, the idea of using virtual reality technology as a bridge to connect artificial intelligence and complex warfare is proposed. By analyzing the characteristics, classification, and development of virtual reality technology,...

Diversified cultural education and teaching is an important content of China’s basic education reform and it is also an effective way of current quality education. This article mainly analyzes the connotation, characteristics and development status of multicultural education, it also puts forward some...

This paper focuses on the stability and stabilization analysis for the T-S fuzzy systems with time-delay under imperfect premise matching, in which the number of fuzzy rules and membership functions employed for the fuzzy model and fuzzy controller are different. By introducing an augmented Lyapunov-Krasovskii...

Sexual violence on campus occurs a lot, but what comes to the surface is not known for certain. No wonder sexual violence in college is like an iceberg. This raises the real question of what kind of understanding of sexual violence on students ?. There fore it is important to map the understanding of...

By testing fresh human red blood cells (RBCs), the morphology of human RBCs in different gravity fields was observed by SK2109P microscope. And the death rate of RBCs in different gravity fields were counted Results show that: RBCs can endure a certain gravity field. RBCs barely died under gravity fields...

In this paper we present a novel method developed from multiple kernel function for short term load forecasting to integrate multi-source heterogeneous load factors in big data. Nine kinds of load factors were selected as multi-source heterogeneous factors. In the proposed method, three algorithms (the...

Industry process includes a variety of monitoring variables, there are strong relevance between variables. Time series from different monitoring points can reflect the relationship of system’s linkage fluctuation. Using coarse graining method, monitoring series has been changed into a sequence of characters....

Aiming at the problem that the vibration signal of the incipient fault is weak, an automatic and intelligent fault diagnosis algorithm combined with ensemble empirical mode decomposition (EEMD), principal component analysis (PCA) and probabilistic neural network (PNN) is proposed for rolling bearing...

Popular scientific words in Sharia economics must be understood carefully so that the concept of learning can be absorbed by students as a determinant of the quality and ability of students in global competition. Therefore, students must master the intralingual translation of popular scientific words...

This study analyzes the influence of the factors considered by users on their acceptance attitude towards SNS advertising. The influencing factors consist of informativeness, entertainment and sociality. This study thus applies a quantitative research approach using survey data from the users who used...

The purpose of this study is to explore the methods and factors that influence the acceptance of Google Classroom technology. This study uses a Systematic Literature Review. Articles are retrieved via the application publish or perish 7 issue of 2010-2021. Then the article is made into a logbook for...

From the perspective of social discrimination, males are often perceived as more suitable gender groups for Science, Technology, Engineering, and Math (STEM) oriented majors, while females are more inclined to study arts and social science subjects. This review paper aims to identify how do gender differences...

Aimed at the problem that the compensation method for attitude and heading reference system (AHRS) cannot adapt the changing magnetic field environment, an adaptive compensation method based on strong tracking cubature Kalman filter (STCKF) is putted forward. The system equation of magnetic deviation...

In view of the current problems in the process of implementing safety management system in building construction in our country, one model was established for safety evaluation on building construction with taking expert scoring as network input, security class as the output based on Hopfield neural...

This paper had explored the effects of different contents of silicone defoamer for time of coagulation and compressive strength of building phosphogypsum. At last, this paper had used origin software to deal with the data of test and verified fitting equation.

LiNi0.8Co0.1Mn0.1O2 powders were synthesized from co-precipitated spherical metal hydroxide, Ni0.8Mn0.1Co0.1(OH)2. The effects of the complexant (NH4OH) concentration in base solution on the microstructure, crystalline structure and electrochemical properties of the product were studied. The results...

By testing many physiological indexes of middle-aged and old people in Nanchang city, Jiangxi province, this paper studies the fitness effect of tennis on middle-aged and old people, explores the unique fitness effect of tennis on middle-aged and old people, and objectively evaluates it. Therefore, it...

This study investigates the effect of internet search and news headline on explaining abnormal return of 425 non-financial companies listed on Indonesia Stock Exchange from 2015 to 2019. Investor attention is measured by internet search volume from Google Trend. Market news is gathered from free online...

Wind speed forecasting has significant influence on wind energy development. In the paper, a least square support vector machine with a novel optimization algorithm was used to improve the performances of wind speed forecasting model. Coupled simulated annealing (CSA) and simplex algorithm were combined...

Topic detection is a novel technology which structures news stories into several topics. Present topic detection approaches are mainly based on clustering algorithms such as single pass or agglomerative clustering, and all these algorithms need at least one input parameter. We proposed a novel clustering...

The control strategy of gear-position optimization of an AMT vehicle under Tip-in condition is presented in this article. The down-shift principle of an automatic transmission under an acceleration condition is also analyzed. The in-the-loop simulation platform of transmission system software of an AMT...

Nowadays students have a wider range of choice for knowledge acquisition benefit from the prevalence of online course construction in China. However, in the face of numerous online courses on various platforms that are dazzling and intermingled, how to guide students to make high-quality choice has become...

There are some problems raised in learning Arabic by various educational institutions that encourage the teacher to modify the teaching and learning methods. It can be done by designing the development of hard and soft technology in learning Arabic. This research examines the design of Arabic learning...

Blended learning combined with mobile learning is an effort to facilitate the limited space and time of study for students in seminar courses. This course has the purpose of learning achievement in the form of students able to identify problems, build a frame of mind, and design research methods that...

Several SMEs in DIY, especially those engaged in the industrial sector, went bankrupt due to the Covid-19 pandemic which had lasted for two years. One of the causes of SMEs going bankrupt is because they ignore the contingency or uncertainty factor that can affect organizational performance. This study...

Moringa oleifera Lam. (Drumstick tree) is a herbal plant commonly found in subtropical and tropical areas such as Indonesia. Moringa plants have been widely used because they have many pharmacological effects. In addition, due to the high consumption of Moringa, there still needs to be monitoring regarding...

This study aimed to describe the principals’ skills in leading the school from home (LSFH) based on the digital age and Covid 19 pressure. This study was a qualitative approach, where data was collected naturally by using a google form, distance open-ended interview, and online forum group discussion...

To predict the number of newborns, we establish an non-equigap stage sequence GM (1,1) model. Above all, we construct a non-equigap cumulative operator and calculate the optimal multiplier. Then we use the genetic algorithms to solve the model. On this basis, we improve it and obtain the GM(1,1, )model....

An underwater sediment soil sampling robot is presented in this paper. The developed robot is composed of a Remotely Operated Vehicle (ROV), a buoyancy regulator, a sampling corer and other parts. Differ from traditional ROVs and sampling devices, the robot moves by swinging the fins and collects soil...

At present, the functions of outdoor fitness facilities are single, and the modeling is stiff and bulky, so the user experience is very boring. The interaction design can not only enhance interaction between fitness facilities and persons, which add lively and interesting experience to users, but also...

Although Uzbekistan's investment environment is not perfect, but recently the situation has changed, especially in the foreign policy of the government of Uzbekistan to develop and implement the laws and the introduction of foreign capital to improve the environment plays an important role. This paper...

This review aims to locate existing studies on health-seeking behavior of people in Indonesia, identify gaps, and highlight important findings. Articles were retrieved from Medline, Scopus, Web of Science, Academic Search Complete (via Ebsco), and ProQuest with a number of key words and various combinations....

Before the outbreak of Covid 19, the pre-service teachers at the university where my colleague and I are teaching used to have a two-month teaching training session at schools to expand their knowledge, skill, and experiences in teaching face-to-face in the physical classroom. However, in this 2020/2021...

This study examines the relationship between investor attention and the broad market index in the Indonesia Composite Index (IHSG). In today’s digital world, the search engine becomes the most important tool in looking for information. Google dominated the market share with 91.38% of people use it. This...

Based on the questionnaires, this essay clarify the education status quo of implementing STS in physical teaching of Hebei Province high school, propose 5 problems and solutions as follows: the knowledge reservation of teachers, STS examples in education materials, changes of the test and evaluation...

With the development of environmental protection industry, environmental protection equipment manufacturing industry is a growing demand for professionals in the aspects of environmental protection equipment engineering. On the same time, the profession in our country is just began and many questions...

Bilingual education for Chinese minority nationalities is an organic and important part of Chinese national education. As a part of China’s ethnic minority education, bilingual education for ethnic Koreans becomes more and more important because the demand for the talents mastering different languages...

Background: Developing a vaccine against COVID-19 is widely regarded as a critical method for containing the pandemic. Public adoption, on the other hand, is contingent on one’s view’s to accept and perceptions about the vaccine. The aim of this literature review is to determine the factors that influence...

This research will describe the use of information technology in Guidance and Counseling services during pandemic. The study method used was qualitative with a case study approach. Data were collected through the distribution of questionnaires to 25 junior high school Guidance and Counseling teachers...

This research was conducted to determine the urgency of accreditation in improving the quality of education in Vocational High Schools (SMK) through a literature review and bibliometric study on the Google Scholar database on Publish or Perish and with VOSviewer assistance, from 2019 to 2024. In this...

The third media age gives birth to immersive media. The development of immersive media technology promotes the multi-level transition of art exhibitions. Immersive media provides new ways of displaying traditional artworks. The changes of display ways bring about changes in the form of information communication,...

This study aims to examine the effectiveness of using Google Forms in the Problem Based Learning (PBL) model to improve the critical thinking skills of high school students. The research method used experimental research through the nonequivalent control group. The experiments used in this study were...

Rapid advances in computer networking and digital technology provide various benefits to human life, but they are not without negative consequences, such as cybercrime. According to the Malaysian Crime Prevention Foundation (MCPF), the total losses recorded in regard to cybercrime for 2019 and 2020,...

Based on the data of the a-share national listed forestry enterprises in 2023, this paper uses the social network-analysis method to study the network structure characteristics of the national listed forestry enterprises and the role positioning and functional differences of the internal member enterprises...

With the implementation of the new government accounting system, there have been significant changes in the accounting of fixed assets in public service institutions. Financial professionals are required to adjust their fixed asset accounting methods to align with these new changes. This paper provides...

As architectural theory is advancing by leaps and bound, tremendous and complex buildings has constructed and requires corresponding maintenance and management methods. However, existing management concentrate on property management and the maintenance relies on human detection. Therefore, it is urgent...

This study takes the design major courses of agricultural and forestry colleges in Beijing as the research object, and from the perspective of project-based design practice, successively reconstructs a new teaching model of visualization teaching scenes + modular teaching organization + three-dimensional...

Economics, business, and accounting teacher education faces a skills gap between what is being taught and what is needed in the job market. Transversal skills are a global concern for university graduates entering the complex world of work. The purpose of this literature study is to examine how to build...

Job satisfaction plays an important role in improving performance and quality of work. With high level of job satisfaction, employees will make a significant contribution and are committed towards their employment. Changes in the management of an organization that involve procedures and policies can...