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It is very important to select critical operations in software reliability testing and software safety testing. In this paper, a framework for selecting critical operations based on Analytic Hierarchy Process (AHP) is proposed. The hierarchies of goals, criteria and alternative programs are introduced...

Genetic algorithm (GA) is a search algorithm based on the theory of Darwin. For the purpose of improving the convergent rate and maintaining the population diversity in GA, this paper presents a new genetic operator called trisecting group and directional selection mechanism (TDGA), in which the worst...

Piezoelectric ceramic as a driver is applied to the deflection of nose, which is a kind of frontier missile control mode. In order to improve the efficiency and reliability of deflection mechanism, a design scheme of the control mechanism that piezoelectric ceramic actuator combined with improved PID...

CGMCC5515(Rifr) were domesticated step by step. Pb-resistant bacteria (PbRB) of CGMCC5515 were selected in directional enrichment and screened with TTC from the pot rice rhizosphere soil with lead and other remediate material, the reverse screen model of simulation soil rice culture with reproducible...

Based on the data of GEM companies in Shanghai and Shenzhen from 2011 to 2014, this paper explores and verifies the relationship between equity balance, internal control and investment efficiency. The results reflect that the balance between equity and investment efficiency shows a "U-shaped" curve....

The physical mathematic model for heat transfer and convection in laser molten pool established. 3D-computer simulation of temperature and fluid fields has been completed with finite difference method. It is shown that in laser molten pool there is a strong fluid flow, which is symmetrical in XY plane...

Identifying the core factors of financial technology is of great significance to the research and development direction of financial technology. This paper selects the data of inclusive financial index of 21 indicators in China from 2011 to 2020 and divides them into three levels according to the correlation...

According to the present problems of multimedia classroom in use, maintenance, management, A control system Based on the Internet of things is propsed. Through the system, it can alarm to remote control, equipment condition monitoring, data analysis and processing. This paper expounds the structure of...

In view of multiple attribute decision making with random variables, in order to highlight research of multiple-objectives decision making, a method of decision making of stochastic dominance for the ranking of alternatives with multiple purpose based on Attribute Hierarchical Model is presented in this...

Dongxiang is a unique ethnic minority in Gansu Province, their faith is Islamic Sunni and its history and folklore are very long. Dongxiang ethnic characteristics pattern which taking folk arts and crafts as the carrier is also with local characteristics and national charm. However, these patterns exist...

There is a worldwide increased demand for blood transfusions. In Third World countries is not sufficient due to the spreading of infections, such as HIV. The current generation of so-called hemoglobin-based oxygen carriers (HBOCs) comprise hemoglobins from different species (human and bovine) that have...

To meet the high requirements of 4G mobile communication systems, such as broadband, wide beamwidth and high gain, an improved microstrip antenna array fed by L-probe is proposed. Generally, most of the 4G antenna array elements have wide band and a gain of 3-5dBi. But the beamwidth in the horizontal...

This paper analyzes the advantages and trends of holographic projection technology and the characteristics of large sports performance arrangement using the method of literature,aiming at providing new ideas for the performance arrangement,thus facilitating new artistic system of large sports performance...

Adsorption of chlorpyrifos (CP) by giant reed(Arundo donax L.)derived biochars obtained at 300-600°C and their corresponding de-ashed biochars was investigated.With increasing pyrolysis temperature,the adsorption capacity(Qe) of CP ontothe biochars increased. The maximumvalues of Qe of CP by the water-washed...

Metric-space indexing is a general method for similarity queries of complex data. The quality of the index tree is a critical factor of the query performance. Bulkloading a metricspace indexing tree can be represented by two recursive steps, pivot selection and data partition, while pivot selection dominants...

To address the air pollution diffusing problem, a visualization algorithm based on fluid diffusion physical model and volume rendering is proposed to simulate the diffusion process epically for the urgent pollution accidents. The diffusion model is based on the simplified heat diffusion equation and...

This paper explored the colligation of “V + Reform” and the semantic prosody of “reform” in the corpus of Chinese Government Work Reports (GWRs) from 2013 to 2022 built with 146087 tokens, and then contrasted the results with those in American State of the Union Addresses (SOTUs) with the purpose of...

This paper discusses how to apply the advantage of the computer to complete the management work of the track and field athletics, and make the management work more scientific and systematic, and apply the successful experience of the management to expound it theoretically.

High silicon content silicone-acrylate block copolymerization emulsion by vinyltriethoxysilane acrylate(VTS), octamethylcyclotetrasiloxane(D4) and acrylic ester was synthesized in this paper. About 20wt% silicon gave the latex film characteristic of rubber by the study on the resilience and tensile curve...

Multi-knapsack problem (MKP) is one of the typical NP problem in optimization field, because the computing complexities of the traditional algorithms are high or they have slow convergence speeds, this paper proposes an improved artificial fish school algorithm (IAFSA) for MKP. Firstly, the integer coding...

Inventory inaccuracy is common in the modern supply chain and it attracts much attention from many researchers. This paper considers a supply chain with inventory shrinkage and misplacement, and the supply chain consists of a single supplier and multiple retailers who are engaged in both price and inventory...

This paper explores the quality education function of intangible cultural heritage from the perspective of social culture. Through the analysis of the cognition and emotion of local intangible cultural heritage in the citizen group, It is believed that the inheritance of intangible cultural heritage...

Conventional multi-view theory fails to explain underwater stereo vision because of the refraction bends light rays. This paper focuses on one of the most common scenarios of underwater vision, a stereo vision system of two cameras with a flat housing, in which the light ray refracts twice, once at the...

From 2020 to 2022, the global economy has been severely affected by COVID-19, and many enterprises have been devastated in the face of this sudden disaster. This article will show amazon’s main response measures in the face of COVID-19, How to face employee disputes internally, how to adapt to market...

Improvement of power factor can reduce resistive power losses, increase the bus voltage and in many cases improve motor performance in an industrial enterprise power network. The regulating elements implemented in the network include transformer tap changers, generators regulators, static shunt capacitors....

The urban-rural income gap expanded increasingly throughout the country has become a major contradiction that it is needed to face during the targeted poverty alleviation, stabilizing economic development and building a harmonious community, and it has been in an urgent need to develop inclusive finance,...

Information on soil organic carbon (SOC) content and stocks is not available in coastal shelter forests, East China, although a large area of forests has been established there in the past 30 years. Dawn Redwood (Metasequoia glyptostroboides) is one of the most commonly tree species for shelter plantation...

On the basis of deep analysis and conclusions of the research status and practical work of educational circles, this paper starts study with the guidance of such theories as information resource sharing, information appreciation, information flow model, information construction and risk management. According...

The microstructures and mechanical properties of Mg-Gd-Y-Sr-Zr alloy was investigated by means of optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and tensile tests. The as-cast alloy contains a microstructure consisting of -Mg matrix, Mg5Gd phase, Mg24Y5 phase and Mg17Sr2....

This paper introduces the realization of correlation power analysis attack to decrypt the encryption equipment for AES encryption system. On the basis of analysis power leakage principle power models and data correlation to build the power information collection and data processing platform. Introducing...

The temperaturefactor is introduced in modeling progress, based on double nozzle baffle electro-hydraulic servo valve torque motor. A new temperature model of air gap reluctance and polarization magnetomotive force was proposed. And an accurate magnetic flux computing method was deduced, in order to...

Literature is the spiritual home of human beings from the history of their origin, besides that, it also has major function in understanding aesthetic education function and also has the treatment function of literature. From a very long time, this field has not been paid enough attention and did not...

To enrich the practical content of the course of GIS, this paper introduces the design and application of earthen sites information modeling from the perspectives of information collection, database designing, information input and processing, information analysis, information display, etc. in Shanxi....

According to the structural features of partially covered photovoltaic/thermal (PV/T) solar system, the theory model and optimum design method of the partially covered PV/T solar system is established. The effect of different design parameters on the performance of the partially covered PV/T solar system...

A high energy resolution X-ray spectrometer based on Silicon Drift Detector is described in this paper. The spectrometer consists of the SDD detector module, the analog electronics for shaping and filtering and the digital electronics for peak detection and data transfer. The system can working at room...

The cross-culture foreign language teaching is the product of the cross-cultural communication of contemporary foreign language teaching in university, while it has been in developing as the trend of globalization economy. Research of cross-cultural teaching in universities has commenced very early,...

In this paper, on the basis of analyzing the traditional teaching, based on the “ SPOC+ Flipped Classroom “ hybrid teaching pattern of “higher mathematics”, and from the teaching idea, learning objectives, teaching content and teaching aspects of the teaching model is designed, finally has carried on...

This paper presents a new adaptive overcurrent protection for distribution network with high penetration rate DG. The equivalent impedance of DG is calculated by fault components during fault transient state, and works as the premise for protection configuration. The principle and the configuration method...

Global Offset Table (GOT) is an important feature to support library sharing in Executable and Linkable Format (ELF) applications. The addresses of external modules’ global variables and functions are runtime resolved and stored in the GOT and then are used by the program. If attackers tamper with the...

To meet the dual-band requirements of satellite communication systems, a novel rectangular dielectric resonator antenna (DRA) is presented. In general, most of the rectangular DRA is fed by slot coupled with microstrip line. But when the antenna is placed on a metallic ground according to the actual...

At present, the telemetry data is stored and released in the form of binary file or text file, and the user can’t find out the data structure from the file itself, this bring difficulties in query and the information sharing. To deal with the problem, a XML-based telemetry data management method was...

Helicopter-based LiDAR system due to high input cost and personal risk resulting in a certain restrictions on overhead power lines. With the developed application of UAV platform for power lines surveys and miniaturization of LiDAR device, the integration of UAV-based LiDAR system comes to maturity and...

The application of Distributed Generation (DG) reduces the consumption of traditional energy, but it also brings certain challenge to relay protection because of its own characteristics. This paper analyzes that the injection or branching current will cause incorrect operation of over current protection....

The knowledge graph construction is a crucial area of focus in the domain of artificial intelligence. To gain an insight into this field of study, we employed the use of Citespace.v.6.1. R2 and bibliometric analysis to create the knowledge graphs between 2012 and 2021, exploring various aspects such...

Auto-cascade refrigeration system using multiple non-azeotropic refrigerants, taking advantage of the difference between the evaporation temperature of high and low boiling point components, applying the single-stage compression, by the way of internal cascade to obtain a larger working temperature range,...

Based on the current situation that the ordnance soldiers are lacking a complete set of professional skill appraisal assessment data, the present on the guarantee difficulty for live-fire training, a new simulation assessment platform was designed and realized in this paper, which included the theory...

Strengthening the accounting major teaching of basic skills and professional skills in higher vocational colleges is not only the need of the development of Vocational Education, but also the need of the talent market and the positioning requirements of Higher Vocational Education. Based on the author's...

low carbon economy conforms to sustainable development concept, and it is beneficial to economic development and social progress. Under the perspective of low carbon economy, development of rural tourism is beneficial to promoting long-term development of rural tourism. Hainan is an ocean island with...

Nowadays, we can see many applications of Iot (Internet of Things) in various dominance. Indeed, IoT technology brings us more than just convenience in life, but also as assistance in medical operations, which makes the author wonder, what if this technology can be used for disease detection? In this...

In order to solve the problems of large equipment investment, imperfect experimental content and difficult construction of experimental environment in the construction of network comprehensive experiment, the paper studies how to build a network comprehensive experimental platform based on virtual simulation...