A method of identifying the basic parameters of involute spur gear using end surface image and CAD softwares is presented. Firstly, the direct parameters of a spur gear are obtained by using the measuring tools. Secondly, the end image of the spur gear is collected by the image scanner and is preprocessed by the image processing software. Thirdly, the basic parameters of the gear are estimated. Then the gear profile is drawn by CAD software and approached the image outline by modifying parameters to achieve the purpose of accurately mapping the basic parameters of the spur gear. Experiments show that the method has the advantages of high precision and simple process, and can meet the requirements of gear design.
Professional Quality Education is the main theme of promoting the internationalization development in Vocational Education under the new media background. Cultivating international talents with media literacy and professional quality will be the new normal in Vocational Education reform and development. Higher vocational colleges should fully comply with the trend of the new media development, using new media resources to establish a multi-leveled collaborative permeable innovative quality education model with no limitation in time and space. This paper raises a vocational quality education development path of“Intelligent Manufacturing with Advantages”,“Channel Revolution”,“Media Integration”,“Chains Extension” and“Service Upgrading”to provide references on enhancing talents quality in Higher Vocational Colleges under the new media background.
Based on the questionnaire survey data of 216 peasant entrepreneurs from 7 cities in Guangdong province, this study analyses the relationship between personality traits, social networks and peasants' entrepreneurial performance. The results show that extraversion, emotional stability, and conscientiousness have positively effects on peasants’ entrepreneurial performance; social networks partly moderate the relationships between personality traits and peasants’ entrepreneurial performance. Therefore, social networks are the alternative mechanisms in order to make up for the character flaws and the lack of education and experience, which can weaken the effects of personality traits on peasants’ entrepreneurial performance. At the same time peasants emphasize on constructing social relationship, they should balance the relationship between personality traits and social network. Government needs to improve the vocational training system for peasant entrepreneurs and build up communication platform for them.
Four factors were studied by orthogonal experiment, with the extraction yield of flavonoids as the investigation index. The results showed that the influencing order of each factor on the extraction of flavonoids was as follows: extraction temperature>ethanol concentration>extraction time>solid-liquid ratio. The best ultrasonic extraction parameters were as follows: ethanol concentration of 6 %, extraction temperature of 3℃, extraction time of 110 min, solid-liquid ratio of 1∶55.OUnderOthisOcondition, theOextractionOyieldOofOflavonoidsO couldOreachO24.366Omg/g.
Property crime of possession refers to the property crime which the offender's subjective is for the purpose of illegal possession. Property control is accomplishment of the property crime of possession and it refers to the act of actual control on property and includes control means and facts of control. Property control has the characteristics of direct and indirect, concrete and abstract, time and regional etc. The possession of property refers to all property possession and its intention decides nature and direction of behavior which is the key to distinguish the property crime of possession from other property crimes. Property holding refers to the act of domination of the property in fact. The difference between property control and possession of property are in nature, content and main body. Property control and property holding are different both in nature and content.
Based on some tools in elementary number theory, such as congruence, asymptotic fraction, the continued fraction Diophantine equation, etc., this paper analyzes some questions presented in archaeological chronology. Taking Dunhuang bamboo slips, Ju Yan bamboo slips of Han Dynasty, the book“Historical Records”, unearthed relics and historical data as evidence, and the records of “Calendar of Twenty Dynasties in China” and“Calendar in Three Thousand Five Hundred Years” as a database of sun and moon movements, this paper proves and discusses five cycles properties in Chinese calendar so as to clarify the basic principles and methods of the archaeological chronology of mathematics.
Since the founding of People’s Republic of China, coastline and land frontier have been the soft spot restricting china becoming a really big power. China has been experiencing a tough fighting in rights safeguard, from orally claiming rights to substantively safeguarding. Even if China already possesses the absolute advantages in South China Sea region, it still has to face unfavorable international environment. China has put forward a slogan of Marine Power, which requires maintaining the marine rights and interests of the South China Sea, taking active measures and strong action against the strength of the surrounding countries.
In the late warring states period, the passive sentence is widely used in ancient Chinese, and the Lu's Spring and Autumn Annals is one of the important corpus of this phase. This paper investigates the use of passive sentences in the Lu's Spring and Autumn Annals. The traditional symbol passive sentences withweiwords,jianwords,yuwords give priority to the presentation of passive sentences, at the same time it also appeared a small amount of words beiand words hu. The Lu's Spring and Autumn Annals is the mainstream of the passive sentences, a true mental passive sentences, which is the subjective consciousness of passive sentences without passive marker words. By summarizing the grammar characteristics, study on the Lu's Spring and Autumn Annals passive sentences can help us grasp the development of the pre-qin Chinese passive sentences.
After more than 10 years of development, open education resources are increasingly perfect, which research and application have been rooted into the social sciences, education, sciences, literature, arts, and other fields, involving education, computer, economic, political, and other disciplines, including education research (85%), computer studies (19%). Research shows a trend of increased year by year;the main body of research is the radio and television universities and other higher education institutes, including radio and television universities (30%), institutions of higher learning (16%). In the colleges and universities, normal schools and ordinary colleges and universities have the same proportion. Some researches successively have won the support of various fund projects.“Modern Education Technology” published nearly half of articles on open education resources supported by the Chinese Education Fund Plan, which illustrates the magazine is in the core position of this field. The content, resources processing, distribution, use model, constructing standards and specifications, performance evaluation of open education resources, etc, are the research hotspots.
The traditional view of engineering pays more attention on the goal of creation, and the process of thecreationhas always been ignored. It also holds the indifferent attitude for the subject of engineering, and this result is caused by the investment-incomemode of thinking and ideas of instrumental rationality. In line with the revelation of risk society theory, this paper proposes the thought of risk engineering, indicating the study that modern engineering should transcend the conventional model, which more considers the factor of economics, to strengthen the value of humanin engineering process of concern, and hold cautious attitude for technology applications in project process.
The historical background and developmental history of the conception and execution of corporate environmental responsibility have originated from the development of corporate social responsibility (CSR) and then experienced institutional practice in western countries. The article explores theoretical foundation for corporate environmental responsibility by use of the theories of environmental coordination, environmental justice and the ethics of responsibility, indicating that they have persuasively demonstrated why we should be responsible for the nature, human beings and their offspring, and therefore laid a deep and sound foundation;in the meanwhile, that the practice of corporate environmental responsibility also promotes the further development of the whole environmental ethics.
Nanoparticles have some particular characteristics of which other macro materials donˊt have, and they have had a promising development prospects in medical applications. However, these particular characteristics of Nanoparticles can also bring about some great potential safety hazards. In this case, how to make use of Nanoparticles medical applications for human beings and how to guard against the possible risks are an ethical subject which is worthy of academic attention. This paper aims to explore Nanoparticles medical applications in the aspect of ethics with four parts, which includes Precautionary Principle, Deontology, Utilitarianism and Responsibility Ethics.
Engels had formed complete thought of science and technology which reflected in the article of Outlines of a Critique of Political Economy. Engels emphasized that science and technology were strong power to promote social development. So, science and technology has positive value in historical perspective. In capitalist society, science and technology became important causes that workers were enslaved. So, it was depended on social changing to play a correct role for science and technology. Capitalist system was the root cause of ecology damage. Engels revealed the macro laws, which supplied the new angle to correctly understand the historical role of science and technology.
Objective To establish a method to determine the content and entrapment efficiency of oridonin capsulated in nanoparticles. Method The HPLC analysis was carried out on a Diamonsil C18(4. 6mm×250mm,5 μm) column with mobile phase consisted of methanol-H2O(60:40) at a flowrate of 1. 0 m L·min-1. The detection wave length was at 240 nm and the column temperature was 30℃. The free drug was isolated by Gel-filtration for the entrapment efficiency determination. Result The1 inear range of oridonin was 2.0 ~200μg·m L-1(γ=0. 9999). The average recovery was 102.5%(RSD 1.56%); 97.8%(RSD 1.37%); 98.3%(RSD 0.22%)respectively at low, middle and high concentration;97.8%(RSD 1.37%);98.3%(RSD 0.22%), respectively.The average entrapment efficiency was 21. 8%. Conclusion This method is simple,precise and replicable and it can be used to determine the content of total oridonin in nanoparticles and entrapment efficiency.
Leisure agriculture is a new form of agriculture and is an extension of modern tourism from the traditional one, and it is also an effective way to optimize the agricultural structure and develop the modern agriculture. Leisure agriculture is a social reproduction regarding the needs of leisure demands. In recent years,the leisure agriculture has been a livelihood industry to increase the employment of farmers and meet the new consumption demands of urban citizens, and it is also a sunrise industry to enhance the development of tourism and expand the domestic demands. We are now at the new stage of integration of rural and urban areas and developing leisure agriculture coincides with the demands of consumption upgrading and the adjustment of industrial structure. It has great significance to promote the economic growth and the protection of environment.The leisure agriculture can also play an important part in improving people's living standard and nurturing,practicing the core value of socialism.
The philosophy of the Lingnan mind was initiated by Chen Baisha and epitomized by Zhan Ganquan. Chen Baisha constructed the naturalistic idea of mind named as “Self-satisfied Learning” and implemented the transformation of Neo-Confucianism to the philosophy of mind in the Ming dynasty. Zhan Ganquan developed the temperament theory based on “appreciating the natural principles anywhere” forming another philosophy of mind different from Wang Yangming. The core concept of the philosophy of the Lingnan mind is that there is no inside or outside in our mind and no reason either outside or inside. It is quite different from Cheng and Zhu’s Neo-Confucianism and Wang Yangming’s study of“being in the inside”.
In this paper the species, effective components and preservative functions of Chinese herb are described. At the same time, the characteristics and development trends of ideal natural food preservatives are also mentioned, with an aim to provide the reference for the development of newly, efficient and safe natural food preservatives and its application.
Born in Europe in the seventeenth century, the bayonet was a kind of cold weapon which invented after the firearms widely used. The invention of bayonet makes up the defect of firepower, and makes the gunners have the ability of self defense. The widely use of bayonet eliminates spears and other cold weapons,which simplifies the constitution of army corps and urges the horizontal type formation to come into being. The bayonet was kept and used in mechanical and information era, because it embodied the extension and supplement to the body ability given by technology, and embodied the transition from cold weapons to firepower.
On the side of representative Jihua road(main road),Tongji road(secondary main road),Huayuanxi road(branch) in Foshan city, PM2.5samples were collected. And 12 kinds of metal elements and 9 kinds of water- soluble ions in PM2.5have been analyzied. Results showed that the daily average concentration of PM2.5in traffic environment of Foshan city were in order: Jihua road(173.3 μg/m3), Tongji road(141.2 μg/m3), Huayuanxi road(126.0 μ g/m3), had a significant positive correlation with traffic and were higher than the daily average concentration of PM2.5in urban 64.5 μg/m3. The contents of Fe、Al、Ca、Mg were higher, followed by Zn and Pb in three sampling points. These metals concentrations in each traffic environment were tested highest in Jihua road,followed by Tongji road and Huayuanxi road.The analysis of enrichment factor showed that the pollution of Cd,Zn, Pb, As were the most serious from man- made source. During sampling, SO42-, NO3-and NH4+were the main water- soluble ions of road environment.
Page Rank algorithm is the most classic web structure mining algorithm,but it exists a problem of topic drift that make the webpage irrelevant to the query subject in search results. Based on the analysis of the pagerank algorithm, it proposes using the euclidean distance to compute the topic similarity and integrate into the traditional pagerank algorithm forming an improved webpage ranking algorithm. And this algorithm is applied to the cloud computing enviroment to explore the process of pagerank algorithm in the mapreduce programming model.
