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A large-scale cryopump (DN1250 LN2) used in space environment simulation system was designed and its performance experimentally investigated by BISEE. In the design, the cryopanels of the cryopump were cooled by Brooks Model 1020 cold head which with high second stage cooling capacity of about 12W @...

The combination of virtual and real digital technology is an important way to activate the cultural heritage. In view of the high cost of 3D modeling of large scenes and the difficulty of integrating with the geographical reality model, taking the digitization of historical and cultural blocks as an...

The accurate determination of time since death, or postmortem interval (PMI), can be critical in the investigation of suspicious deaths. Determine the bloodstain age on the fabric in crime scene is an important method for solving a case rapidly. This paper researches the relations between bloodstain...

Green construction is the future development direction of the construction field in China. It is necessary to do a good job in the construction of green construction management in the t construction process to implement the concept of green construction. This paper discusses the connotation of green...

With the rapid development of economy and technology, Internet has long been integrated into all aspects of our lives and has changed our way of life. In this context, College English as the foundation of higher education is also undergoing reform and innovation. Based on the "Internet plus" mode, College...

With the development of spaceflight activity of human, the number of space debris has increased dramatically. Spacecraft will be impacted by large amount of small debris in space during flight. In order to detect the gas leak in time, a new method of leak detection for spacecraft on-orbit based on acoustic...

Corporate finance theory emerged with the increasingly complex corporate financial decisions and discipline. As an applied discipline, the personnel training of corporate finance should be a combination of theoretical study and practical of the corporate financial decision-making, in order to play a...

Personalized intelligent tutoring system is an effective approach to achieve the personalized teaching. In this paper, it discusses the connotation and learning styles of personalized intelligent tutoring system. After research the knowledge model and the student model. Finally, it achieves a personalized...

The long-term high-pressure consolidation test, of which the maximum consolidation pressure is 6 MPa and the longest consolidation duration is 34 months, is selected to simulate the deformation characteristics of the main compression soil layer (depth of 100 ~ 300 m) based on the study of the deep foundation...

According to the teaching characteristics of automobile structure, introduced a new "four - piece integration" teaching model, and application and practice of the teaching model. This teaching model integrates and optimizes the original automobile structure curriculum system, comprehensive classroom...

This paper uses Logistic model for renewable energy markets under different ownership systems were studied. Logistic model is one of the core theoretical ecology Population Growth Model. According to the market characteristics of renewable energy, our coverage under different ownership system of renewable...

The purpose of this paper is to provide a virtual assessment and training system for vocational skill identification, which can lay a solid foundation for the theory, basic skill operation and practical assessment of professional skill operation. This paper presents a virtual assessment and training...

This paper is to test applicability of panel regression method on economics, and study the impact of technology innovation and human capital on enterprise value. Firstly, we built a model to describe the relationship of above factors. Then, panel regression method based on Stata was applied for analyzing...

The increasing travel demands and the growing diversity of trip purposes in megacities are placing more pressure on the urban transportation system, and there is an urgent need to popularize public transportation and control the exploding increase in travels by private cars. In order to enhance the competence...

Text-to-scene is a new technology used in many fields. It provides approaches to convert natural language into virtual scene. People can also use this technology to show text information using the visual method without professional knowledge. This paper attempted to provide a route of text-to-scene implementation....

This paper studies the general steps and methods of the image matching technology. Using a set of optimized Harris corner detection algorithm, a similar measure extracting feature points by the maximum correlation coefficient to achieve accurate matching. Finally, the weighted smoothing is performed...

Reservoir types and distribution of water is an important part of petroleum geology studies, selection and knowledge of the oil and gas exploration direction of hydrocarbon accumulation rules are important. The use of logging while drilling, a variety of three-dimensional seismic and geological data...

Computer communication network is widely used in all walks of life, which greatly facilitates people's work and life. However, at the same time, the security of the computer communication network also brings many negative effects to people. This paper discusses the common problems of computer communication...

With the development of modern industry, image measurement technology with its high speed ,high precision and non-contact advantages receives high-profile attention. In the machine vision system the size of the process of mechanical parts measured, it is found that the accuracy of the edge position directly...

Seaport passenger passengers evacuation problems for optimizing the research design and strengthen seaport passenger passengers emergency effective management measures,by improving port passenger safety of passengers emergency significance. In this paper the research on both domestic and foreign passenger...

Hospital information system(HIS) has been considered as one of the most important branch of the Medical Informatics by international academia community, with the essence of integrating all the hospital departments into a large information network to make the make the whole hospital system run better....

Under the pressure of the global CO2 emission, energy efficiency is one of the most important aspects that need considerations in designing the future Internet. For reducing the power consumption of the Internet, people should focus their research attentions on the power-aware networks design and most...

Eye health issues in China are becoming increasingly severe and affecting younger populations. The government has introduced multiple policies to promote eye health strategies, yet problems such as poor translation from awareness to behavior remain prominent. Existing research abroad focuses on the link...

Internet technology has helped transform China’s tourism industry from traditional tourism to smart tourism. High-quality development of tourist attractions is the main content of China’s smart tourism construction. Based on the concept and connotation of high-quality development of scenic spots, this...

This paper studies the changes of different time, place, rod length and shadow length. Use of existing video data, using mathematical vectors, linear programming, dichotomy, multi-stage euqal exhaustive and other methods, according to the laws and geographic relationship to establish true solar time...

The 2-thioxo-1,3-dithiole-4,5-dithiolato (dmit) complexes exhibits very large and fast third-order NLO response and may be promising candidates for the applications in the field of nonlinear optics. An organo-metallic complex, ethyltriphenylphosphonium bis(2-thioxo-1,3-dithiole-4,5-dithiolato)aurate(III)...

The establishment and application of TBL method in pharmacology teaching are introduced in this paper, including the setting of teaching objectives, the establishment of new knowledge systems, the determination of different knowledge systems, the preparation of the students and teachers, and the evaluation...

Cultural adaptation is the process and result of cultural exchange and interactions. The phase division, theoretical schools of thought, and developmental trends of culturally adaptive research are important scientific issues. Based on the perspective of philosophical schools, this article conducts a...

In recent years, China facing the impact of the global financial crisis, the economic situation is grim, small and micro enterprises, as important parts of the national economy, are the key points for social stability and economic healthy development. In order to cope with the complex economic situation...

Interactive University is a typical stakeholder organization. According to the influence degree of stakeholders on Interactive University, it is divided into internal stakeholders and external stakeholders. Because of different positions and functions of local university, government, market and society...

The seismic safety of the dam involves the safety of people's life and property, and even affects the overall safety of the national economy. One of the key of technical issues in this subject is the more complete fluid-structure interaction(fsi) theory and the more accurate calculation method. In order...

The resettlement project in Southern Shaanxi is featured with a large amount of planning and construction in the scope of town. Due to the disconnection with the village and town planning and the lack of overall consideration on the ecological environment, problems have occurred such as the disorder...

By the research on the clustering problem of multiple attributes data processing based on K-Prototypes algorithm, this paper improves distance formula, which can more accurately reflect the differences between tuples. Besides, according to the various demand of privacy preservation, the sensitive value...

The social networking has become an inseparable part of human being’s daily life across different age groups. More people are growing an obsession to the online platform that this problematic behaviour has caused negative impact toward people’s life. Solutions for this excessive behaviour have been intensively...

Objective: To make a study of the effects of EGCG on learning and memory abilities in mice with Alzeimer's disease. Methods: The mice were divided into normal control group, model control group, brain repair group, low EGCG dose group, middle EGCG dose group and high EGCG dose group. We use the evaluation...

The self-adaptive Kalman filter algorithm can solve the problem of filtering divergence and tracking in conventional Kalman filter algorithm, so it is widely used in GPS data processing of vehicles and ships. But in practical application, the tracking of adaptive algorithm is still insufficient. Therefore,...

In the era of the digital economy, the digital transformation of traditional enterprises has produced subversive changes in human capital structure and capabilities. Considering the dual role of organizational inertia in employee digital performance from the perspective of employees’ resources and cognition...

A UV curable complex system with vinyl resin and polyurethane acrylate photo-polymerization was investigated. The UV curing process of complex system was traced by IR. Thermal decomposition temperature of UV cured film for various system were determined by thermogravimetric analysis(TGA). And physical...

This paper focuses on a large kitchen fume gas purification device newly designed by numerical simulation using FLUENT software. The velocity distribution and pressure distribution within the whole device are simulated. Particle trajectories of different droplet diameters (5 m, 8 m, 11 m, and 15 m) are...

A fast target tracking algorithm based on connected component labeling and grey value statistics is proposed. First of all, nonlinear transformation is applied to perform enhancement for targets; and then adaptive threshold is applied to perform pre-processing division for the images; finally, target...

For analyzing the free vibration of exponentially functionally graded beams a transfer matrix has been developed. The transfer matrixes of exponentially functionally graded beams which need the loop iteration are derived in closed form. The proposed transfer matrix based on the Taylor series expansion....

The reasonable location of thermal power plant will influence its economic operation and social sustainable development. So the paper mainly researches on the locating of thermal power plant. Firstly the paper builds a primary comprehensive evaluation index system for the location of thermal power plant....

According to the denoising technique based on the non-negative matrix factorization (NMF) and Redundancy technique based on discrete cosine transform (DCT), a fusion method is proposed, namely, NMF-DCT dimension reduction method. This method is applied to the dimension reduction of ORL face images. The...

To choose cucurbitaceous plant pumpkin as the selected plant and the paper initially discussed on the repair effects of DDT-contaminated soil by pumpkin under a variety of measures. Results showed that the content of DDT in soil reduce significantly after the same repair period. The experimental group...

This paper reviews the eye-tracking L2 learner process studies published between 2013 and 2021. Specifically, the paper focuses on reviewing the eye-tracking L2 learner process research areas, the issues addressed by the studies in each area, and the comparison of domestic and foreign studies. It was...

In recent years, because the psychological crisis caused by school bullying hasn’t been solved in time, many events that primary and middle school students go to extremes emerge. This problem has become a hot topic to people from all walks of life. Peer psychological counseling has the characteristics...

With the development of technology and the progress of life,gas energy play a more important role in our daily use. The transmission process is a key part of the security use of energy. In the transport process,the flame velocity caused by the combustion of enengy have a crucial impact on the pressure...

With the rapid development of smart grid, the alarm management method used in the existing smart power communication network cannot meet the logical requirements of the new business in the network. So this paper introduces an alarm correlation analysis method based on Bayesian network. Firstly, the structure,...

In this paper, we design a basic spectrum analyzer which can analyze the signal with the bandwidth in 10 MHz~100MHz and the minimum resolution in 100 KHz. We utilize the AD9854 DDS (Direct Digital Synthesizer), STM32F407, AD831, AD835 and the TFT LCD to design and implement a system that has menu-driven...

Power control unit (PCU) is the controlling center of space satellite power system; it controls the energy that output from solar array and batteries and the power balance of the whole satellite. The circuit board, components and power tube in PCU is working in a long time and in high power situation,...