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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...

The Programmed Cell Death 1 (PD-1)/Programmed Death Ligand 1 (PD-L1) Immune Checkpoint Inhibitors (ICIs), have become a hot spot in the field of cancer research and treatment, and bring new hope to patients with advanced tumors. But, in addition to enhancing the anti-tumor effect of T cells, PD-1/PD-L1...

With the upgrading of network defense technology, network attacks are constantly refurbished. This paper studies the vulnerabilities and advanced evasion attack, using open source Metasploit and fragroute proposed and constructed a new model with evasion attack technology, at the same time,ÿand gives...

The era of new knowledge economy came into being. Under the condition of uncertainty of demand, the control of supply chain inventory has become a major trend in the development of inventory management. However, our country started late in this regard, and there are few studies. Most of them only stay...

The most important thing in all optical networks is to reduce the cost of using the network in electronic processing equipment, along with wavelength division multiplexing (WDM) technology are increasingly improved. Add-drop multiplexer (ADM) is not only the most important equipment but also the most...

Non-sterilized substrates mainly composed of soybean straw were used to cultivate Ceriporia lacerata for preparing mycelium-soybean straw composite materials (MSCM) in this research. The effect of the particle sizes of soybean straw on preparing MSCM was evaluated. Compression properties, thermal conductivity...

Aim at reducing the contradiction between teaching time limitation and course contents in Digital Signal Processing course, this paper researched new teaching method based on resources sharing network platform, Problem-Based Learning(PBL) teaching mode and its application, and adopted several methods...

Consistent approximate representation space is a unified model for formal contexts, consistent formal decision contexts and inconsistent formal decision contexts. In this paper, notions of attribute reduction are first developed in a consistent approximate representation space, and then necessary and...

The course of the Product Data Management (PDM) is an Interdisciplinary course, which has the distinctive engineering and management characteristics. In order to satisfy the demand of teaching reform and researching of the PDM, the practice and applying is analyzed based on PDM software management platform....

The paper develops a simple method of dynamic gesture recognition based on the Kinect which is a new sensor from Microsoft in the environment of VS2010 combining Kinect for Windows SDK v1.8. Kinect sensors can track human bodies within their effective scope in real-time and obtain the depth of the corresponding...

The student party branch is an important battle fort of the development of the party's Party-building work.With the increase of the student party members, how can the Party branch fully play the leading role and create more effective and sound party building management mode in this era when the traditional...

We studied the Diophantine equation x2+4n=y9. By using the elementary method and algebaic number theroy, we obtain the following concusions: (i) Let X be an odd number, one necessary condition which the equation has integer solutions is that 28n-1/3 contains some square factors. (ii) Let X be an even...

For effectively measuring logistics standardization effect to promote the logistics standardization, it was proposed that logistics standards system and two kinds of "push" and "pull" logistics standardization modes based on supply logistics system architecture of automobile parts. Based on defining...

In order to improve the response speed of magneto rheological (MR) damper, the system is in need of a fast response driving power supply. Firstly, response characteristics of the MR damper was analyzed. Secondly, according to the basic principle of electromagnetic response, the design of the control...

Online and offline blended teaching is the mainstream teaching mode of current classroom teaching. The emergence and application of smart classroom has injected new vitality into blended teaching, which is more convenient for the implementation of blended learning Teaching and the collection and analysis...

The impact dynamics of flexible multibody systems is analyzed based on the impulse momentum method (IMM). According to the rigid-flexible coupling dynamic theory of flexible multibody system, the continuous dynamic equations of the system are established by the recursive Lagrange method. By using IMM,...

This design scheme is a fast packing box? including external cylinder, laminate, spring, inner tube and lock ring. The inner tube is installed inside the outer cylinder and The hook is installed in the groove of the guide slot. It has the characteristics of convenient disassembly and easy to use and...

The stiffness matrix of a shaft with slant transverse crack under the common action of axial force, moment and torque was derived based on material mechanics, local flexibility and fracture mechanics theory and apply strain energy release rate method. The opening and closing regularity of the crack and...

With the rapid development of Internet technology, the development of online education platform in China has made certain achievements. This document mainly analyzes the impact of online education platform on middle school students' education and the existing risks. The paper collects the feedback of...

Calcification of the tunica media of the main pulmonary arteries has been observed in a large proportion of young racehorses. In humans, medial calcification is the most important cause of increased arterial stiffness, and has been implicated in the pathogenesis of microvascular diseases. Pulse wave...

The term stratagem [The western term strategem (from Greek stratēgēma), closely related to strategy and usually considered as a small strategy. In Ancient China and later in East Asia the following hieroglyph 計 was used to express idea of planning the trap.] (計), let alone strategematics—the science...

Road icing affects the efficiency of road transportation and the safety of life and property. Salt anti icing pavement technology, which actively solves this problem, is widely used, but there is little research on long-term evaluation. To overcome the problem of effective ingredient loss in salt storage...

Sepsis is a life-threatening organ dysfunction caused by a deregulated host response to infection, and is the most common cause of death in the intensive care unit. Although the pathogenesis of sepsis has made substantial progress, the current clinical treatment of sepsis is basically symptomatic treatment,...

The deposition of coatings on the surface of carbon fiber will be helpful to their applications. However, they are unsuitable to be deposited because of their low surface free energies, poor wettability and poor adhesions. The objective of this work is to modify carbon fibers by different methods of...

Industrial Engineering (IE) is a comprehensive and practical emerging major. Due to unclear definition of professional field, there is a certain disparity between IE education in high school and engineering practice. To find the approach to bridge the gap, this paper analyzed IE comparative education...

Mining is a process of extracting potentially useful information from raw Data, so as to improve the quality of the information service. With the rapid development of the Internet, the size of the data has increased from KB level to TB even PB level; The object of data mining is also more and more complicated,...

Object To explore the effects of Na+/H+ exchanger regulatory factor 1 (NHERF1) on the phosphorylation levels of Akt1, activity of gelatinase secreted by HUVECs, and expression and distribution of cytoskeleton inside Human Umbilical Vein Endothelial Cells (HUVECs), and to expound the molecular mechanism...

Great importance is attached to the college students’ entrepreneurial ability, which has become a promote college talent training quality and education level demands of the Times and development connotation. College students' entrepreneurial ability training ways have been proposed which consist of the...

In order to meet the requirements of counting of visible foreign particles in liquid injection, an automatic visible foreign particles counting system based on trajectory modelling is developed. The mechanical part drives containers to spin and stop abruptly and afterwards the liquid continues to spin....

With the increasing task demand for complex system, the timeliness of the system is becoming a prominent problem, especially in the inefficient system and may even lead to safety problems. This paper proposes a modeling method considering the issue of timeliness for complex system, in which the clock...

T Marketing is a very practical and applied course. In order to match China's higher education to implement “the cultivation of innovation ability and practice ability”, exploring new teaching mode, carry out innovation education reform, and cultivating excellent marketing talents for the enterprise...

Reputation, as an intangible asset, has brought many benefits to the social subject. However, with the development of social science and technology, there are more and more acts of infringing on the right of reputation. At the same time, the act of infringing upon the right of reputation of citizens...

On the basis of single factor experiment, orthogonal test method for 2-α hydroxy for optimizing the extraction technology of ursolic acid, choose L9 (34) orthogonal experiment was carried out to 2-α hydroxy yield of ursolic acid as index, at room temperature (25 øC) under ultra-high pressure, holding...

Before 1960s, Korea was a small agricultural countries depending on imports. During this 45 years, South Korea has made a huge leap in the economy. The reasons of economic growth of South Korea was analyzed in this paper. The author mainly focused on the science-and-technology-innovation policy, education...

This paper uses DEA method to evaluate innovation efficiency of 40 typical artificial intelligence enterprise in our country, which inputs element as human (research and development personnel accounted for the ratio of the total number of employees) and capital (the ratio of R&D and business revenue),...

All of the articles in this proceedings volume have been presented at 2023 5th International Conference on Economic Management and Cultural Industry (ICEMCI 2023) during November 17-19, 2023 in Beijing, China. These articles have been peer reviewed by the members of the [Scientific Committees and reviewers]...

All of the articles in this proceedings volume have been presented at the 3rd International Conference on Digital Economy and Management Science (CDEMS 2025) during April 18 to 20, 2025 in Wuhan, China. These articles have been peer reviewed by the members of the Scientific Committees and reviewers and...

There are lots of legal financing channels for listed companies, and the financing structure of the listed companies varies from their corresponding operations. However, internal financing, bond financing, and equity financing account for certain proportion in the better financing structure combination....

In view of the problem that the test of spike signal in the power line is difficult to capture, and based on the theory of time - domain analysis of dynamic circuit, the influence factors of voltage spike test by using the maximum value of traditional multi - random test are studied. By means of the...

In this paper, Chinese listed companies in household electrical appliance industry are chosen as the research object. Through principal component analysis and multiple linear regressions, the capital structure influence factors of these companies are analyzed. According to the results of this study,...

With the popularity of the Internet, China gradually into the Internet era. College students as the ideological advanced group, become the main group of Internet users. The Internet also won the general recognition of college students' groups with its openness, sharing and interactive advantages, and...

Based on panel data of 24 provinces of China from 2000 to 2015, this paper uses the semi-parametric additive model to explore the impact of rural financial development on rural residents' income gap in China. The empirical results show that rural finance development has a tendency of positive influence...

Being increasingly common in our lives, mobile networks have created a mobile, convenient, and individualized environment for microlearning. This transformation has caused change in the format of learning resources made available through micro-courses and MOOC (Massive Open Online Courses) so that they...

Stem water content is an important index of plant water balance. A new method based on changes in ultrasonic properties of stem was used to monitor stem water content in this paper, because the propagation of ultrasonic pulse echo signal and its attenuation characteristics in the material are closely...

Comfort is an important performance index of modern cars, and thus car production enterprises are making every effort to improve the comfort level of cabs. The cab suspension system plays a key role in obstructing the vibration passed from the chassis to the cab. A simulated analysis on the car cab suspension...

Serious pollution of waste gas, waste water and waste residue are generated by calcium carbide-based polyvinyl chloride (PVC) production in China, especially the mercury pollution on account of using a mass of mercury chloride catalyst (HgCl2). This study introduced main methods and techniques which...

Design process of long roots Chinese herbal medicine harvester is analyzed,3D solid modeling based on Pro/E for the herbal medicine harvester is made.Virtual assembly for harvest using Pro/E assembly module,also with movement simulation and analysis for it’s key components is made in this paper. All...

Intelligent circuit breaker is one of the most significant devices in the electric system, and its stability and reliability are quite significant for the operation of the power grid. An online monitoring and fault diagnosis system based on the vibration signal of virtual instrument technology is proposed...

this article describes a method of general data interface’s design and implementation based on IEC 61850. This method puts interface data of communication and other function components in real-time database of the equipment, which also sets up a mapping method of the correlation of IEC 61850 and real-time...