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Effect of thermomechanical processing on the mechanical properties of low carbon cold forging steel was investigated for different processing parameters on a laboratory hot rolling mill. Fast cooling is a key factor in thermomechanical processing. The mechanical properties of specimen 2 which was fast...

View maintenance is a hot topic in database. But unlike database view, the knowledge view of knowledge management system has its particularity. The knowledge view is a cache of knowledge item that can be access quickly. Based on rough set, this paper proposes an approach of constructing knowledge view....

Dilatometry is one of the most popular methods for the study of high temperature physical properties of steel and thermal expansion is considered to be an important factor concerning on the crack formation during casting and rolling for pipeline steel. In the present study, dilatometric curve of X60...

The modular curriculum system construction is a hot topic in recent research on the teaching reform of applied talents training, training the application ability of the starting point, change the knowledge input output ability, but the curriculum system construction and implementation process there are...

Ti was diffusion-bonded to a grade of carbon steel containing about 0.13 wt% C. The diffusion- bonded specimen was then hot-rolled to a final reduction in thickness of about 71 %. There were no delaminations during hot-rolling. The cross sectional microstructures of specimens before and after hot-rolling...

The PHP as an open-source coding language is becoming more and more popular for companies, web developers and researchers. It is frequently adopted when building up a server. Protecting PHP code from being plagiarized is also a hot research issue especially with the rapid development of dynamic web industry...

In hot-stamping production line of high-strength steel, when high-temperature sheet gets out of furnace, it needs to be delivered as soon as possible to press for stamping, to reduce high temperature oxidation and plasticity reduction caused by temperature drop, and improve the efficiency of the production...

To meet the automotive lightweight trend, hot stamping production technology is becoming a key technology of automotive body manufacturing. In the hot stamping production line, multi-chamber furnace is been adopted for its batch of high heating efficiency. The heated blank is transported by tray-type...

With the increasingly high demand for energy saving, the demand for lightweight vehicles emerged. Hot stamping of high strength steel is a very important part of automobile lightweight. How to establish an efficient, reliable, energy saving hot stamping production lines will be an integral part of automotive...

In recent decades, many countries have seen improvement in their economic conditions. Why do some countries experience rapid economic growth, others stagnate, and others catch up to other economies in quick succession? All of these questions are crucial to understanding history and the modern day. We...

Along with the progress of the society and the development of information technology, Multimedia application technology plays a more and more important role in production and life, and multimedia teaching has become an indispensable part of college English teaching. Then, how to conduct date mining on...

With the popularization of computer, computer-aided examination by has becoming the hot topic of studies. In English teaching and testing, using the computer aided test system to test the English ability of students has been a trend. In this paper, computer aided English exam system both at home and...

In this study, Cite Space software was employed to analyze the keywords co-occurrence of 1000 literatures in the field of online teaching evaluation based on the core collection database of Web of Science. Combined with the content analysis of literature, the research frontiers and hot spots of online...

With the development of computer science and technology, motion capture is increasingly applied in many fields such as film production, research analysis, human-computer interaction, intelligent monitoring and so on. The main task of the motion capture is to analyze and process the data from the sensor,...

Al2O3/ZrB2/ZrO2 composites were fabricated by hot pressing technology. The friction and wear behavior of this new material, coupled with cemented carbide ball in unlubricated conditions, were investigated. Experimental results showed that the friction coefficient values and wear rate of alumina matrix...

The hot deformation behavior of 70Cr3Mo back-up roll steel was studied in the temperature range of 1173-1473K with the strain rates of 0.01-10s-1, respectively. Based on the dynamic material model (DMM), processing maps of 70Cr3Mo steel at the strain of 0.1-0.7 were developed and investigated. The effects...

Big data research and application has become a hot spot in the information technology field, but how to use big data research customer behavior characteristics, to establishment of the era of big data customer insight and precision marketing system, this area is very small. Based on the reviewed of big...

In 2020, the global outbreak of COVID-19 has triggered an unprecedented global crisis in modern history. COVID-19 is seriously destroying the economy, causing social and geopolitical, and other fields into danger and turbulence. America is now also facing challenges from domestic and international levels. The...

The carbon/phenolic resin composites consist of phenolic resin, natural graphite and carbon fiber, were fabricated by hot compression moulding. The effects of the mould pressure on tribological property of carbon/phenolic resin composites were investigated. The results indicated that the hardness increased,...

RBF network is an efficient feed-forward neural network with the best performance and the global optimal approximation properties. Synovial variable structure control has many advantages, such as corresponding fast algorithm, the system parameters and external disturbance invariant, and its algorithm...

Our paper work on the design of the molded case circuit breaker’s automatic production line .Screw in the trip (located at the hot end of the bimetallic strip) extended length to the length of the circuit breaker tripping time play a decisive role, so the thermal trip is the core component of the molded...

Epilepsy is caused by abnormal synchronous discharge of neurons in the brain, which is the main basis for the diagnosis of epilepsy. Use of complexity theory to study the epileptic signal has become a hot spot. The symbolic transfer entropy can be used as a characteristic of epilepsy playing an increasingly...

Reducing the energy consumption of villages and towns and raising their energy efficiency is one of the priorities for the development of sustainable buildings in China. This article takes the village and township houses in hot summer and cold winter zone as the research object. Based on the analysis...

Power transformers are key components in the stable operation of electric power system. Reasonable arrangements of maintenance strategy according to transformers’ working condition can decrease the loss lead by transformers’ faults. The dissolved gas analysis (DGA) is the widest technique used in transformers’...

As an important policy in the tax reform, replacing Business Tax with VAT began from 2012, full realization in 2016, and has been a hot topic of concern. With the consideration of main content, time and background, this paper suggest a hypothesis on how the profitability changed before and after replacing...

The COVID-19 outbreak from 2020 to now has dealt a huge blow to the hot pot industry and caused some changes in consumer behavior characteristics. By using the case study method and literature analysis method, this paper found that consumers in the post-epidemic era are characterized by high social sensitivity...

The rapid application of electric vehicle (EV) is a trend in recent years. Meanwhile, it will have a significant impact on power system. In order to reducing the disadvantages of EV accessing to the grid and maximizing the benefits of such controllable load, the scheduling control strategy of EV is becoming...

Jumping robots have been a hot research spot, since they are playing an important role in the modern wars, aviation and exploration, due to their good ability in obstacle surmounting, excellent adaptability to the ground and strong adaptability to the environment. This paper presents a novel bionic locust...

E-commerce of agricultural products is one of the hot research fields in recent years. This paper, taking Qihe Organic Agricultural Development Co., Ltd. as a case, first described its present e-commerce application and then analyzed its deficiencies in depth from information grasping of market demand,...

With the development of China's science and technology and large-scale construction of infrastructure, put forward higher requirements to the highway pavement performance, modified asphalt is necessary. Aging is a problem of modified asphalt in use process cannot be ignored, which directly affects the...

China's real estate industry rose in the 1980s, and developed in the 1990s. In recent years, with the promotion of housing system reform and the acceleration of urbanization, the real estate industry has developed rapidly. On the one hand, the prosperity of the real estate industry has improved the quality...

Internet development has allowed the e-commerce industry to grow and consumers to fulfill their wants through online shopping. However, as more and more information is available online, companies must differentiate from others. Integrated communication marketing (IMC) allows businesses to transmit unified...

Rolling schedule plays a decisive role in rolling of strip steel, and has an important effect on capability of rolling mill. The optimize method of hot strip rolling mill is researched, and the capability of rolling mill is improved effectively, so the quality of the product is also improved.

The miniaturization of the low frequency, high-power transducer has becoming the hot spot in the transducers research. With the variety type of sonar’s working frequency went below, the increasing demand for low-frequency performance of the underwater acoustic counter device. The conventional low-frequency...

IMOS allows very sharp subthreshold slopes, even down to a few mV/dec at room temperature. However, the device has serious reliability problems, such as large threshold voltage shifts, caused by hot carrier induced damage and the large supply voltage. Hetero IMOS, using the small bandgap material as...

The reform of classroom teaching model has become a hot area. Application-oriented undergraduate refers to the application-oriented positioning for the school, rather than scientific research for the positioning of undergraduate colleges. For an application-oriented undergraduate university, the quality...

Self-efficacy, a popular theme that is vital to influence learning efficiency. While online learning is another hot issue especially when the COVID-19 appeared. Therefore, understanding the distinction of self-efficacy on online education in different cultures and improving it has become important. In...

Nowadays large numbers of multiaxial UAVs are applied in the civilian field. The security of operating UAV has been upped to new levels. It has now become urgent to solve the problems of training high-quality UAV operators and effectively evaluating their training results. The article attempts to introduce...

With the progress of the times and social development, the requirements for talent specifications are getting higher and higher. The quality of talents has also become a hot issue of universal concern in all countries of the world. The core literacy of college students has made the education sector re-recognize...

Jinsha River Dry-hot valley is the typical region of soil degradation in southwest of China. In order to understand the mechanism and the effect of the soil degradation, sampled the dry red soil from the Jinsha River Dry-hot valley, researches and analysis were made in the surface 0~20cm soil aggregates...

With development of assistant effects of the Internet plus in the education, assistant teaching methods, such as Micro course and MOOC gradually become part of course design. Blended teaching model basing on the Micro course becomes hot spot of education reform. However, it is a worth exploring question...

With the rapid development of network technology and the advance of information technology companies, the traditional monitoring system and web technology combined with the B/S mode of the computer remote monitoring system has gradually become a new research and development of hot spots, built on B/S's...

Perception of the moving object in 3D from video streams has been one hot topic in computer vision. We present a fast method to reconstruct 3D information of the moving object from binocular video streams. System is assembled as two pipelines, technica are used to excavate the potential parallelism....

The power amplifier operating in a low frequency with high output power is always the hot issue in the sonar transmitter system in underwater acoustic field. This paper provides a Class D power amplifier for a transmitter in a sonar system. We first describe the basic principles of power amplifiers....

Earning management is a very hot and disputed topic can be influenced by many factors. Compared to old standards, our new accounting standards can restrict earning management in lots of aspects. Inevitably, as immature standards, it can’t avoid and eradicate all the situations in earning management....

The Chinese microblog (Weibo) grows quickly and eventually has been an essential tool for Chinese netizens. This paper proposes a cooperation–competition model for the trend of the hot issues of Sina Weibo based on some hypothesis and parameter settings. After using the equilibrium solution theory of...

Flight taxi time is a key index to measure the operation efficiency of large airports. There are many factors affecting the taxiing process of the flight at the airport. Firstly, the taxi time of arrival and departure flights was defined and its composition was analyzed. Based on the taxiing time of...

Micro-grid is a hot issue in new energy research, and a major orientation of distributed power generation in the future. The diversity and flexibility of distributed power generation complicates the operation and scheduling optimization of micro-grid. On the basis of considering a mathematical model...

The order-grouping problem of Hot Rolling Seamless Steel Tube is studied in this paper. A multi-objective optimization model minimizing overall delivery date and address difference is established, then a multi-objective evolutionary algorithm with elite-strategy and crowding distance computing is designed...

The nonlinear Burgers equation is a hot issue in the field of computational fluid dynamics, which has nonlinear convection term and diffusion term. In this paper, we give a numerical solution of the nonlinear Burgers equation by a combination of finite difference and Chebyshev-Galerkin method. Use the...