Search all articles

It is known that many integrable systems can be reduced from self-dual Yang-Mills equations. The formal solution space to the self-dual Yang-Mills equations is given by the so called ADHM construction, in which the solution space are graded by vector spaces with dimensionality concerning topological...

The problem of studying the maximal Lie symmetry of some nonlinear generalization of the vector subsystem of the Maxwell equations is completely solved.

The singular manifold expansion of Weiss, Tabor and Carnevale [1] has been successfully applied to integrable ordinary and partial differential equations. They yield information such as Lax pairs, Bäcklund transformations, symmetries, recursion operators, pole dynamics, and special solutions. On the...

We classify the Noether point symmetries of a generalized Lane-Emden equation. We obtain first integrals of the various cases which admit Noether point symmetry and find reduction to quadratures for these cases. Three new cases are found for the function f (y). One of them is f (y) = ?y r, where r

With the continuous development of the times, the development of financial intermediary makes human society step into a state of efficient integration and matching between real economy and virtual economy. In order to improve the understanding of the function and performance of financial intermediary...

Tetraprenyltoluquinone is a compound that was successfully isolated from the hexane fraction of stem bark Garcinia cowa, Roxb. In previous studies, tetraprenyltoluquinone is known to have anticancer and anti-inflammatory activity. The aim of the study is to investigate the impact of tetraprenyltoluquinone...

Research have been conducted to test the performance and techno-economic analysis of liquid smoke pyrolisator with LPG fuel. Liquid smoke beginning to develop by researchers, to get the higher quality in order to become safe for consumption by the public and not contains carcinogenic substance. Raw material...

Preeclampsia (PE) often described as new-onset hypertension and proteinuria during the third trimester of pregnancy. PE, is one of the most feared complications of pregnancy because it can progress rapidly to serious complications, including death of both mother and fetus. It is important to get a better...

The article analyses the main trends in the development of higher education exports in Russia and Poland. For this purpose, data from the official statistics of both countries, OECD, have been collected and analysed. A list of countries from which the flow of students to both countries is increasing...

The objectives to be achieved in this study were to determine the effectiveness of group counseling through modeling techniques to improve the learning discipline of VIII grade students of MTs Negeri 9 Sleman. The type of research in this study is experimental research. The research design used in this...

This article aims to find out the law regarding the protection of indigenous peoples in the law related to the environment in Indonesia. In the pre-reformation era, especially at the beginning of legislating on environment, there is no law regarding indigenous peoples. After the amendment, the existence...

Buah Batu District is the sub-district with the second-highest Covid-19 incidence rate in Bandung City on December 2020. Many factors affects the high incidence of Covid-19. Medical Faculty Community Service in collaboration with the Indonesian Youth National hold activities to help overcome the problems....

An effective campaign in introducing an image so that it can build the electability of governor candidates according to regulations is to use social media, because social media has no distance and time limits, then costs are relatively cheap and access can be reached by all levels of society. This study...

Accurate poverty alleviation is an innovative means of poverty alleviation, and provides a new way for the work of poverty alleviation. Production of agricultural products for the life of the peasants provide material guarantee, the need to take active measures to give support, allowing farmers to increase...

The effects of abscisic acid (ABA) on the growth of Malachium aquaticum under salt stress were investigated through a pot experiment. The results showed that ABA increased the biomass of M. aquaticum. With the increase of ABA concentrations, the root, stem, leaf and shoot biomasses of M. aquaticum increased...

This paper measures China's market integration by the price difference among regions of eight categories of goods and service. We select tradable goods price data of China's 36 cities in twelve years. We calculate the overall and classified Gini coefficients to analyze integration level of China's market...

This design adopting 80C51 microcontroller and a few external circuit to control lights, using silicon controlled dimming technology, by means of single chip control bidirectional thyristor turn-on to achieve incandescent lamps (resistive load) brightness adjustment, thus achieving the photometric light...

By deeply analyzing discrete frequency theory, this thesis put forward rational theory basis about choosing discrete frequency spectrum and phase position. On the basis of traditional discrete frequency soft starter, this thesis utilize control strategy based on equivalent sine wave principle to promote...

This paper deals with a method for pursuer to track a moving target in the three-dimensional space. The method is based on the use of the geometrical rules combined with the kinematics equations of the pursuer and the target. The maneuvers of the target are not a priori known to the pursuer. In this...

The high-performance and low cost NAND Flash and PRAM (Phase-changed RAM) hybrid storage designs have been proposed for embedded systems. However, the system is still suffering from serious performance degradation for continuous write/read operations in the same logical address frequently due to physical...

This text begins with the social employment demand on graduates major in civil engineering, elaborates the connotation of cultivation mode of practical talents, and discusses the construction of practical talents training mode system from the perspectives of training objective and training standard,...

An analog and digital modulation recognition method based on support vector machine (SVM) is proposed. A multi-class classifier is designed through the reasonable use of SVM multi-class classification method. A comparison for the performances of one-against-all (OAA), one-against-one (OAO) and binary...

Through the research and summary on ecological water resources in the production, living and ecological tourism and other aspects in Xiangzhigou of Wudang District Xinbao village,according to the climate characteristics and regional pattern of Guiyang xiangzhigou, this paper set the simple quantitative...

To make multi-agent collaboration to better collaborate on tasks proposed tactical concept of multi-agent collaboration, a number of tactics to each set of tasks, these tasks set for this tactical purposes, the task set, through with the completion of collaboration between individuals, at time level,...

A new M-ary spread spectrum(SS) hybrid communication system is proposed. The system adopts two orthogonal branches to transport information. In each branch, double M-ary biorthogonal spread spectrum modulation is adopted at first, then every SS code is treated as original code to adopt CPSK modulation,...

This paper studied the feasibility of treating the acid mine drainage (AMD) by using a process of permeable reactive barrier (PRB), in which coal fly ash(CFA) was used as the reaction medium. The adjustment of pH and the removal of COD, sulfate and three kinds of heavy metal ions (Cd2 +, Cu2 +, Zn2 +)...

Some questions exist in the development of Chinese engineering interdisciplinary postgraduate education, such as little attention to the guidelines on engineering education, lack of practice-oriented engineering training, loose cooperation between school and enterprise, little attention to the cultivation...

Eco-translatology not only improves the interpreting theories and practice but also acts as the guideline to the interpreting teaching. Therefore, this paper attempts to put forwards the implications for the improvement of interpreting teaching from the perspective of Eco-translatology, and explore the...

Model checking is one of the formal methods for verification of hardware and software systems. A model checker verifies queries described in temporal logic formulas about a model defined as a state transition diagram. Since the model checkers make an exhaustive search of the state space, the key point...

Commercial circulation service industry is the leading industry of national economy and an important symbol of economic development level, and its development is of important strategic significance in driving the local economic development, guiding the consumption, increasing the employment rate and...

Based on the CVaR measure, this paper introduces a Cooperation and Competition model for the risk management of the two-stage supply chain. It is supposed that both the supplier and the retailer are risk-averse and their objectives are to minimize their own CVaR(Conditional Value-at-Risk) objective instead...

This study aimed to describe; (1) the product feasibility of scientific report writing instructional materials science, (2) the quality of the layout and appearance of the scientific report writing teaching materials, and (3) the effectiveness of the teaching materials. The applied model of research...

Idioms are widely recognized as the essence or the crystallization of language. They are closely connected and cannot be separated from culture. English idioms are formed in a particular historical period and passed from generation to generation, embedded with unique cultural connotations, such as historical...

The Halal food market in Indonesia has a big potential where 88% of the population is Muslim. The number of Islamic population in Indonesia according to the Central Bureau of Statistics (BPS) in 2010 reached 207.1 million people, where the largest population is on the island of Java. Even Thombson Reuters...

In 2016, the Ministry of Religious Affairs of the Republic of Indonesia, the Directorate General of Islamic Education, and the Directorate of Islamic Higher Education, established a policy namely Strategic Management System (SMS). All colleges have to implement the system. But, the speculation that the...

The bridge crack detection still relies on human visual measurement nowadays, which means low efficiency and high cost. In view to this situation, the convolution neural network(CNN) was introduced into bridge crack detection to improve the efficiency and reduce the error caused by manual work. In this...

The article discusses various assumptions on creation of the song cycle To the Distant Beloved by Ludwig van Beethoven, establishing connections between the first song cycles with German amateur vocal circles in the late 18th - early 19th centuries. The authors apply the comparative-historical method...

As an important participant in the international construction market, Chinese construction firms (CCFs) are confronted with the tasks of keeping themselves competitive. The paper put forward the development stages and current situations of CCF at the international market. To help construction firms maintain...

Germany started to develop higher education of tourism after World War II, which came into being with the development of German tourism. Taking one of the world's famous educational countries Germany as the core and based on the background of German higher education, this paper discusses the curriculum...

To achieve a fluid energy recovery by piezoelectric generator, a piezoelectric wind energy harvester (PWEH) is presented and investigated experimentally. Making use of the force generated by the flow of wind to vibrate the piezoelectric material, the mechanical energy harvested from the vibration of...

Start from the image edge detection, the papers analyze the edge detection principle and some commonly edge detection operator, and on basis of it, we introduced wavelet transform, and proposed an improved multi-scale edge detection algorithm, then new edge thinning algorithm are proposed for the particularity...

Core-shell structural material has received much attention, this materials are different from the symbiotic synthesized two phase molecular sieve, but has ordered core-shell structure which retains the composition characteristics of the molecular sieve and has a variety of active center and dual channel...

ECG monitoring equipmentwill generate a huge mount of ECG signals, which causes enormous pressure on server storage and transmission. Therefore, many compression techniques are proposed to overcome this problem including some fractal based lossy ECG compression techniques. However, basic fractal based...

Firstly, an experiment teaching center, which in relation with electronic system fault diagnosis, was introduced in this paper, including the background, necessity and scheme of construction. Based on the fault diagnosis theory of analog and digital electronic system, two analog and digital electronic...

Two species of Chromolaena odorata, with one indigenous in Mexico and the other introduced to Sipsongpanna, were cultivated by water culture method, and treated by high, normal and low nitrogen respectively, and the technology of methylation sensitive amplification polymorphism (MSAP) was used to explore...

Aiming at the natural features and assisting navigation status on the Arctic routes, the impacts of Arctic shipping on China's container shipping, crude oil import shipping and bulk cargo shipping are analyzed. It is concluded that the Arctic navigation will reduce the shipping cost. The economic potential...

Thermal spray is an effective method in the remanufacture process. In this paper, Ni-based and Fe-based powders were sprayed onto a steel substrate40Cr using a thermal flame spray technology. The coatings were remelted by the heatronicheater. The morphology of the coatings was characterized by using...

This paper focused on the railway transportation industry in the era of big data, and researched on the Statistical Information System of Freight Train Formation, collected its business data in 311train operation depots of 18 railway bureau as total sample and 35 statistical targets as dependent variables,...

In the Russian Federation, corporate profit tax consolidation implicates rather tight restrictions on organizing a CGT. Even though earlier it was announced that the restrictions would be loosened, a moratorium has been declared on organizing consolidated groups of taxpayers since 2015. The purpose of...

Outsourcing has a load of information technology and high added value and low resource consumption, less environmental pollution, creating jobs ability and other characteristics.Therefore accelerating the development of service outsourcing industry, promoting and upgrading the city's industrial structure...