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Modeling of the turbulent convective heat transfer to supercritical pressure fluids in horizontal circular tubes is achieved through an integral approach, and a traditional mixing length turbulence model is employed into the numerical scheme. Based on this model, heat transfer of supercritical carbon...

OFDM-IDMA system with perfect performance is the key technology of 4th mobile communication. in this paper, we simulated the performance of OFDM-IDMA in AWGN and quasi-static Rayleigh channel respectively, the simulation results indicate that the performance of multi-user is close to the single use as...

As the core carrier of information acquisition, distribution, transmission and application in the future, Space-Ground Integrated Information Network SGIIN will play a very important role in the development of national economy and society. Operation environment and the diversity application of SGIIN...

With the improvement of mechanical construction level of China, the organization planning of construction equipment in the mechanical construction is more and more important, while the construction organization measures of mechanized construction for transmission line are lacks of related research at...

In this text, we conduct empirical analysis on performance of China's manufacturing listed companies from the perspective of M&A. Taking 285 China's manufacturing listed companies whose M&A is occurred and completed between the year of 2010 and 2013 as object, and adopting the financial index analysis...

Abstract: This paper considers channel estimation for mmWave communication with massive received array antennas at BS. Instead of estimate the channel matrix, we resolve the problem into two steps. Firstly, one could separately estimate DOA, on the basis of the array signal processing techniques, and...

E-commerce development of cross-border international trade in China has experienced three stages of cross-border e-commerce industry transformation - information service, online platform transaction and whole industrial chain services. They fully manifest direct, multilateral, small-batch, high-frequency...

After DG accessed to distribution network, the structure and operation mode have great changes, larger influence on power system reliability index, so need to adopt a new reliability evaluation model and method, it proposes reliability evaluation model and method of distribution network with distributed...

Hepatocarcinoma, a malignant cancer, threaten human life badly. It is a current issue to seek the effective natural remedy from plant to treat cancer due to the resistance of the advanced hepatocarcinoma to chemotherapy. Resveratrol (Res), a major symbol ingredient in red grapes and peanuts, has a wide...

In the process of teaching, students should study not only professional knowledge, more important is to cultivate their aesthetic ability, only cultivate this ability, students can learn in regardless of what access to data can take the essence to its dregs, make up a level of learning. Many people may...

Based on the security threats faced by mobile intelligent terminals in the Internet of Things, this paper proposes a trusted enhancement framework for Android mobile intelligent terminals based on the SD card trusted module. A trustworthy computing environment including Trusted Security Management Center...

Under the new normal, higher vocational colleges will be confronted with severer employment reality. It is an imperative problem for higher vocational colleges to do employment guidance work of graduates in higher vocational colleges under the new normal. This paper analyzes the impacts of new normal...

The 20CrMnTiH gear steel was heated at temperature range from 850°C to 1250°C and at holding time range from 0s to 480s to obtain the law of austenite grain growth by using Gleeble-3500 thermo-simulation-machine in this research. The effects of heating temperature and holding time on austenite grain...

In the study for the prevention and the control of breast cancer, using mobile devices to design questionnaires and applying models to screen out high-risk groups has great signifi-cance. However, some existing models are not suitable for the Asian women. In this work, we proposed an ISE algorithm to...

Traditional traffic signal control (TSC) schemes rely on fixed timing or rule‑based adaptation, which lack real‑time responsiveness to stochastic and highly dynamic traffic flows. Deep reinforcement learning (DRL) has become a promising paradigm for adaptive signal control, yet value‑based methods such...

Employee turnover is a costly affair, as it can cost up to five times more to hire a new employee than to maintain a current one. Although previous studies highlight transformational leadership as a means to reduce employee turnover, there are insufficient studies that examine the mediating effect of...

One mitochondrial minisatellite locus was used to study cytoplasmic diversity in leaf beet lines SK-5 population from Chongqing, China. The analysis of one mitochondrial minisatellite locus (TR2) was conducted using variable number of tandem repeats (VNTRs) molecular markers method within 50 single plants...

Colleges and universities are critical places to train builders and successors of socialism. Under the new situation, the goal and positioning of talent development in universities is no longer restricted to coaching traditional knowledge, but putting the improvement of students' ability, quality and...

In the study, Cableway Monitoring System which monitories cableway running state by Siemens S7-200 series PLC, is connected to PC .The PC is developed by VC Language .The article describes the principle of Dynamic Monitoring System and the program's software architecture. Test showed that the system...

Aiming at the requirement of planting flax in arid region of middle and east of Gansu Province, a 2BF-4 type flax seeder with 11.03~29.4kw tractor as its power was developed, which used the combination of short wing angle fertilization opener and double disc seeding opener to Device for separate application...

It is an effective way to improve the safety operation of power system to tap into the potential of demand-side regulation capacity with a reasonable demand-side response mechanism, especially in power system with a high proportion of renewable energy resources. On basis of reviewing demand-side response...

The new-type semiconductive shielding materialethylene/vinyl acetate copolymer/ carbon black-graphene nanosheets (EVA/CB-GNS) used in crosslinked polyethylene (XLPE) cable is manufactured by adding graphene nanosheets (GNS) with conductive carbon black (CB) into ethylene/vinyl acetate copolymer (EVA)....

Global Navigation Satellite System is the most important infrastructure to compass the way nowadays and in the future, and the carrier smoothing code method is usually used to improve the accuracy of the position. However, there will be a great influence on satellite navigation and positioning with abnormal...

There are rich cultural heritages both underwater and in land in China, which is the object concerned by archaeologists and historic researchers, especially the ancient wooden sunken boats containing the past information of old human civlilization we can restore. Detections for buried magnetic massive...

The random variation of wind speed causes active power and reactive power injection of large-scale wind base to fluctuate constantly, this in turn leads to voltage fluctuation and unqualified voltage amplitudes of this area. This article proposes quantitative voltage control to solve this problem. Firstly,...

Based on the related generalization of Vague set algorithm of intuitionistic fuzzy theory, this paper applies it to UWB marine ship precision positioning technology, puts forward new research methods and calculation formulas, and constructs the similarity measure between them and obtains new formula...

A novel solvent-free photosensitive polyester based on the hyperbranched aliphatic polyesters has been studied. The hyperbranched aliphatic polyesters (Polymer A), which was prepared from 2,2-dihydroxymethyl butyric acid(DMBA) containing one carboxylic group and two hydroxylic groups, Trimethylolpropane(TMP)...

This paper states the main contents and importance of architecture basic courses,Preliminary Architecture 1, 2 and 3, and puts forward the optimizing aims and methods in view of the existing problems in traditional teaching combined with practice.It includes cultivating the design thinking and overall...

Now human beings are facing three major issues: resources, environment and population. Environmental problems are closely related to resources and issues of resources are the main reason of environmental problems. With the deterioration of environmental problem, people attach more importance to the study...

In order to discuss the failure mechanism of concrete filled steel tube lattice wind turbine tower joints. Based on the parameters of abdomen strut section form, and using nonlinear static numerical simulation, this article research on the stressed complex joints. The results of the study show that the...

China is the world's large countries of ceramic production , the types of ceramics is also varied , the ceramics for daily use , sanitary ceramics have been an important export products for China's economic development and make a great contribution to the development . In the design of ceramics for daily...

Scientific law is the roadmap with which human can put their will into the nature. There are two points for understanding this proposition. Firstly, the final goal of developing science is for human will which can be put into the nature. Secondly, human will change the scientific law. The modality and...

The melting and crystallization behaviors of poly(lactic acid) (PLA)/polypropylene (PP) and PLA/PP/PP-graft-maleic anhydride (PP-g-MAH) blends were investigated by means of differential scanning calorimetry (DSC) and polarized light microscopy (PLM). The results showed that the pure PLA and the PLA in...

The paper elaborates Expert_PID controller applied in servo system. Illustrates an S-function construction method on complex control law. Designs an Expert_PID controller based on MATLAB/S-function and writes partial core code of Expert_PID controller. Establishes the simulink model of servo system based...

At present, tissue engineering scaffolds in the process of clinical medicine plays an irreplaceable important role. Based on the in-situ precipitation combined with frozen extraction, good n-HA dispersion and three-dimensional (3D) structure of n-HA/PLLA-PCL composite nanofibrous scaffolds were prepared....

The authors have a lot researches about numerical simulation of resin transfer molding for resin-based composite materials based on unstructured grid in the past. In these researches the authors found while the grid is orthogonal, the simulation is agreed with facts. But the grid is non- orthogonal,...

Internet as the carrier of the micro era inevitably produce some transformative effect on the behavior of the ideological and political education of college students . It is of great significance for the healthy growth and development of contemporary college students to carry out the party and League...

Tailings dam is an important control project of mine safety, once the instability, the greater harm. Tailings dam seepage damage is the main reason about tailings dam safety accident and tailings dam seepage problem belongs to the muddy water seepage. By considering the main hydraulic factors of the...

Based on the impact of BiliBili website crash on multiple websites and the great attention it has received, it is not difficult to see the great impact of new media application on contemporary young people. Therefore, this paper specifically studies the impact of the rapid development of new media application...

With the requirements of the power load predicting accuracy becoming higher and higher, and the actual power load is also a complex nonlinear system limited by various uncertain factors. Given only considering the influence of a single model on the load forecasting, the predicting accuracy is absolutely...

Chaos system has important application to secure communication for its indeterminism. Based on studying the theory of chaotic encryption system, the Lorenz chaos system is applied to construct serial code and encrypt information, and then an experiment of encrypting speech validates that Lorenz chaos...

Through analyzing their grade structure, type structure and spatial distribution with the method of spatial analysis technique of Arcgis, results show that:the grade structure is characterized by more provincial projects and fewer national projects, but a good number of provincial projects have the potential...

The “Length Approach” is a method to promote learning by writing long compositions. In order to test the effectiveness of this approach in promoting students’ writing and comprehensive English ability, the current study introduces the “Length Approach” into college English writing teaching. This study...

The differences in thinking patterns between English and Chinese have been found to have a significant impact on Chinese students' English writing, whereas there are few analyses of thinking differences specific to the English writing of junior and senior high school students. Therefore, this study...

The introduction and application of the flipped classroom teaching mode revolutionized the traditional teaching mode. In College English Teaching, the flipped classroom teaching mode can effectively improve the students learning level, improve English teaching efficiency. This paper analyzes the connotation...

In today's tough education situation, how to strengthen the ideological and political education of higher vocational college students are educators worth pondering. With the continuous progress of society, the development of Higher Vocational Education in China is in good condition, and a large number...

Effects of phosphate bioglass on sintering of hydroxyapatite (Ca10(PO4)6(OH)2,HA) scaffolds prepared by freeze-drying casting was studied. The phosphate bioglass, acted as a binder, was added in a mixture of HA powders and forming additives. The result shows that the phosphate bioglass binder could improve...

College advertising teaching should envisage the trend of market development and its particularity, on the basis of student-oriented, social demand and graduation direction of students oriented, aiming the high quality and skill practical professional talents training. As a subject with very strong practicality,...

The dynamic parameter of the large space manipulator is the foundation of the design of the control box, the accuracy of the parameters is key to the feature of the manipulator. So a dynamic model of the flexible robotic manipulator is built, and some identification researches are carried out. Based...

Today, with the constant development of science and technology, computer technology is improved gradually as well. But in today's computer technology development, the part of face recognition became a hot research point in pattern recognition of computer with the vast development prospect and application....