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In this paper design of LED lighting system based on AC (alternating current) bus power supply mode with low and variable frequency is proposed. Mainframe output alternating current with 250V effective value and 200Hz low frequency by conversion after APFC rectification. Extension set adopting capacitor...

An independent component recovery approach for intrusion tolerance is proposed in this paper. Virtual Machines (VMs) are used to provide each online replica with an independent backup replica. The recovery of each component depends on the actual service state. A strict execution order is not needed to...

This study focus on derivation of such fragility curves using Carbon Fiber Reinforced Polymers (CFRP) technologies retrofitted conventional reinfored concrete (RC) factory buildings. A set of random earthquake waves which compatible with the response spectrum of major history earthquake waves in China...

The problem of air pollution has attached people's general attention nowadays. And the Jing-Jin-Ji region is badly polluted in particular. So this paper will mainly focus on how to evaluate the air quality and regional interaction in Jing-Jin-Ji region in a new scientific approach. Considering that the...

Firstly, based on the theories and methods of acoustic intensity measurement, the surface radiation noise of the rear driving axle of minibus was tested in the bench experiment. With the analysis of the experiment data, sound power was calculated to plot the noise distribution of the rear driving axle....

In recent years, some airlines have used "low-cost brands" to broadcast skin care products to attract consumers to pay, but consumers still disagree about the products of airlines. In order to understand the main driving force of the purchase decision of skin care products consumers in the...

Due to the complexity and variability of PPP projects, the necessity of post-project evaluation is clarified.By comparing with the post-evaluation model of general construction project, the content of evaluation system after PPP is analyzed.From the evaluation of the post-process evaluation,benefit and...

According to the requirements of environmental protection dredging and the characteristics of inland waterways in Jiangsu Province, the scheme design of a dredging and dewatering integration dredger for inland main waterways is studied. The development trend of the existing dewatering dredger is analyzed,...

Bulk Amorphous alloy generates slag at the bottom of the cutting section during laser cutting, which decreases the quality of the cutting process. It’s very difficult to be cleared with adjusting the parameters of the cutting machine only. The paper takes the pattern of cross nitrogen blowing during...

By default, OpenStack scheduling policy is random scheduling, without considering load balancing of the resource pool. This paper proposes an elastic and effective cloud-based solution in online education. OpenStack integrating with Cloudify is used to build the cloud. An elastic scaling approach of...

This paper focuses on the mode-coupling characteristics of gyroscope, and tries to rebuild a more perfect system model of silicon micro-machined gyroscope. It analyses the factors causing the coupling motions between drive-mode and detect-mode of gyroscope system. The mathematical model is deducted out...

This paper taking 4000 square meter sample survey data of different forest types in Zhanjiang as the research basis. Analyzed the structure and composition of understory plants by different gap light factor. Results showed that the impact of gap light on species distribution is significant. Indicator...

In order to determining technological parameters of vibratory aging treating for large-sized welding box-section beam structures, kinetic analysis was carried out according to the industrial standard. The natural frequency, vibration mode and the curves of amplitude-frequency were obtained by using Finite...

In order to achieve the shape finishing and stress reforming of wide stainless steel clad plate after rolling, based on the elasto-plastic straightening theory, combined with the 11-roller straightening scheme, the isothermal residual curvature straightening process is presented. The straightening process...

From the present tension situation of residential parking facilities, based on the comparison of the three-dimensional garage type and analysis to residential quarters type, made the positive significance and necessity of three-dimensional garage into residential areas clear, put forward selection and...

Aiming at the issues about equipment deployment of chemical reconnaissance in systemic level, the modeling thinking of chemical reconnaissance system is studied based on the ability theory, the simulation and calculation for the equipment application of the specific action-oriented chemical reconnaissance...

Based on the MapReduce job scheduling technology for design reference, this paper has put forward the maximum satisfaction scheduling algorithm of Hadoop to effectively solve the scheduling problems in MapReduce. The algorithm has tried to modify the original algorithm of Hadoop, configure a satisfaction...

Objective: to solve cultivation equipment problems for industrial cultivation of sprout, sprout aeroponics equipment that features vertical cultivation, aeroponics, ozone sterilization, water magnetization, automatic control technology and etc., is designed in this paper. Methods: SolidWorks 3D design...

This paper mainly makes introduction about microencapsulated phase change material slurry (MPCMS).Microencapsulated phase change material slurry (MPCS ) can serve as both the heat transfer fluids and energy storage media, consequently, they are potentially applicable to the thermal systems. The preparations,...

Ba Jin is one of the most influential writers in modern and contemporary Chinese literature. Intellectuals arehis persistent creative themes. He created a ‘ educated youth ‘ image in his novel, which is an important contribution to the Chinese modern and contemporary literature. This paper analyzes three...

In this paper, a method of analysis attention state based on the time series transformed by the improved k nearest neighbour network is proposed. In the proposed method, counting number state EEG signals and closing eyes state EEG signals are constructed into networks by the improved k nearest neighbour...

In this study, CrTiAlN and CrAlN coatings were deposited on the surfaces of M2 high speed steel (HSS) substrates. High temperature ball-on-disc tribometer was used to test the tribological properties of the coatings. The results showed that the surface micro-morphology of CrTiAlN and CrAlN presented...

In this paper, a method based on the nolinear Granger causality is used to analyze epilptic EEG and ECG signal. Polynomial kernel function, Gaussian kernel function and sigmoid kernel function are used to map the linear data in low dimensional input space into high dimensional feature space .In this...

According to the maximum hollow circle strategy of the Voronoi diagram, Starting from the basic principles for equipment allocation of the chemical reconnaissance system, the capability range of the three kinds of chemical reconnaissance nodes is determined by the ideal model of chemical reconnaissance...

With the industrial upgrading and transformation in the automotive specialty skilled personnel training process, in order to meet the development needs of modernization, we should take advantage of "artisan spirit" to promote the cultivation of its associated coupling and artisans professionalism as...

Exsiting indoor localization approaches have poor accuracy because of multipath effect. In this work, we utilize Perpendicular Intersection(PI) means, establishing the model o f multipath effect on signal propagation . The results show that multipath effect can be overcomed by PI and high accuracy is...

To solve the problem of weak discriminability of the feature vector for underwater acoustic classification, a method of feature differentiation optimization based on PCA and MDA analysis was proposed in this paper. It can enhance the differentiation by optimal mapping the feature vectors to transform...

With the rise of the tertiary industry and the adjustment of Chinese economic structure, a considerable amount of industrial buildings which have lost their original functions are left behind time. Their abandonment in the cities cause a huge waste of precious land resources. Instead of tearing down,...

The geometric model of micro injection molding machine with double-toggle clamping mechanism is established to analyses the kinematic and mechanical performance of double-toggle clamping mechanism. The kinematic analysis of the double-toggle clamping mechanism is used to study the effects of the double-toggle...

The establishment of Chinese garden aesthetics can be traced back to the era of the Wei (220-265 A.D.), Jin (265-420 A.D.) and the Southern and Northern dynasties (420-589 A.D.).The specific historical conditions forced the literati-official class to ignore politics, indulge themselves to natural landscape...

As one of the most currently important commercial entities, multinational enterprises have great impacts on both host states and home states in almost every industry, such as energy, telecommunications, and manufacturing industry. This work aims to review the state-of-the-art balance for host states...

This paper analyzes the controlled elements of commercial exhibition space design and explores the influence of psychological and behavioral traits of consumers on these controlled designed elements from a perspective of space design. This paper puts emphasis on four key elements that influence commercial...

A2N (anaerobic / anoxic and nitrification) denitrifying phosphorus and nitrogen removal process is a new process which based on denitrifying PAOs anoxic phosphorus theory. The experiment used the continuous flow A2N system for dealing with the dilution of high concentration of anaerobic fermentation...

Since the 18th National Congress, the Party and the State have incorporated the construction of ecological civilization into the overall layout of the socialist cause.However, with the rapid development of my information technology business, information technology caused by energy consumption is rising...

The construction and operation of the charging and battery swap station facilities is crucial to electric vehicle industry. In this article, the energy supply, operation management, billing, pricing and payment method for the station facilities are analyzed, and the advantages and disadvantages of various...

A new type of polyhedral oligomeric silsesquioxane (POSS) (7Ph-T7-Vinyl) containing phenyl and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was synthesized from phenyltrimethoxysilane, trichlorovinylsilane, and DOPO in high yield. This product was subjected to addition reaction using an...

As traditional method mining for association rules between items in large and grand data sets is inefficient. In this paper we present an efficient method called BPMRA which is based on mapreduce and partition. We have compared BPMRA algorithm based multi-node and partition based single node method and...

With the advent of the big data era, data-based business analytics is more and more widely used in all industries, in which banking with the loan business is one of the most important businesses. In order to conduct more intelligent risk control, banks often build prediction models based on loan records...

Digital nucleic acid amplification and determination has become an attractive technique by its capable of high sensitivity and precision. With the development of microfluidic technique, this method becomes much easier to perform, with less sample requirement and cross contamination. The dynamic range...

At present, the framework of the medical security system in rural and pastoral areas of Inner Mongolia Autonomous Region has taken shape, which plays an important role in meeting needs of the farmers and herdsmen on health care and improving the health standard. First, this article elaborates on the...

This paper applies reliability theory to the study of material supply in supplier system, proposes the conception of single supplier reliability and the flow of reliability calculate, then analyzes the reliability of hierarchical supplier system and taken the factor of cost into account.

To remove the blur of the image from optical navigation camera, a image restoration method based on spectrum characteristics is proposed. In this method, image denoising pretreatment is first implemented by the NSCT filter. Then, to obtain the minimum amplitude distance, the paper optimizes the image...

Optical character recognition is already widely applied to industrial applications, and its recognition accuracy is also increasing with a variety of algorithms. This paper introduces three kinds of neural network structures named BP neural network, DBN network, CNN network. Through experimental comparison,...

This paper studies college students' attitude to The Sunny Sports in different stages of exercise behavior based on the trans-theoretical model of exercise behavior and the attitude theory of social psychology. The results show that: first, totally, college students' attitude to The Sunny Sports in the...

In order to make the policy "Jin Mo brownouts" supported by the majority, it is necessary to demonstrate it without ideology of science. This paper builds a mathematical model, makes a quantitative analysis of "Jin Mo brownouts" policy in the implementation of the problems facing and analyzes the causes...

This paper mainly studies the influence of "Jin Mo brownouts" policy of the city traffic system, using the idea of mathematical modeling to prove the scientificity and feasibility of the policy. Taking the example of Changsha City, this paper analyzes the consumption of time and space resources of the...

Faced with a large number of questions on the programming OJ (Online Judge) system, students are usually mindless when choosing questions, which is not conducive to helping students quickly improve their programming ability. Programming Knowledge Tracing (PKT) is a technology that dynamically traces...

We choose a city named Zurich and establish a city sustainable development evaluation index system with economic status, social status and ecological environment. First, we analyze the city's current situation, and draw up a new plan for it. Also, we get four sustainable growth levels: Excellent, Good,...

With the rise and wide application of artificial intelligence, China has also seen the emergence of the four AI Four Little Dragons -- SenseTime, Megvii, Yuncong, and Yitu. According to the development comparison of the four artificial intelligence companies, this study analyzes the business model, technology...

With the importance of drive assistant system in intelligent vehicle, the vehicle detection fusing multi-sensors and multi-vision features is provided. The vehicle detection algorithm is composed of two steps. Firstly, the vision sensor and millimeter wave radar sensor are used, and with space transform...