Research on the Application of Juvenile Psychological Development and Sports Acquisition Law System in Physical Education Teaching

Adolescents’physical and mental development has obvious age-stage characteristics.Therefore,before the implementation of physical education teaching,it is necessary to fully analyze the laws of adolescents’psychological development and fully understand the laws of adolescents’physical development and exercise acquisition.The purpose of this study is to start from the actual needs of physical education teaching and to fully understand the laws of psychological development of adolescent groups.After the review and analysis,the law of adolescents’sports acquisition is summarized and summarized,so as to form the system of adolescents’psychological development and sports acquisition law in physical education teaching,lay a good foundation for physical education teachers to implement teaching on the teaching objects of adolescent students in a targeted and efficient manner,and ultimately promote the benign development of school sports.

The Centenary of the CPC: Leading the Times by Grasping the Laws and Trends of Historical Development

Discussions on grasping the laws and trends of historical development take a fundamental theoretical position in the scientific system of Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era.Xi Jinping’s important statements have systematically answered such questions as what type of laws and trends of historical development should be followed,how did the Party follow the laws and trends of historical development in its centennial history,and how should the laws and trends of historical development be followed in a new era.The birth of the Communist Party of China(CPC),the victory of China’s War of Resistance against Japanese Aggression,the founding of the People’s Republic of China,and the unveiling of a new era for reform and opening up and socialism with Chinese characteristics are all the results of grasping the laws and trends of historical development.Over the past century,the Party has followed the laws and trends of historical development and continuously advanced the sinicization of Marxism on the basis of adhering to the unification between truth and values.In pursuit of“putting people first,”the Party has courageously been reforming itself and made relentless progress in the great endeavor of Party building.History shows that a keen appreciation of the laws and trends of historical development is an important sign of political maturity for a proletarian party.Only by applying Marxism according to current times and conditions will we keep abreast with the laws and trends of historical development.We should establish a broader concept of history and identify the laws and trends of historical development from the interactions and linkages between China and the rest of the world.We must recognize and promote the outstanding role of great leaders in steering the country in line with the laws and trends of historical development.

Law of Intestinal Development of Wanxi White Geese at 0 -9 Weeks Old

[Objective] To explore the law of intestinal development of Wanxi white geese at 0 -9 weeks old. [Method] A total of 120 Wanxi white geese at 1 day old were selected, and their law of development of intestinal weight and length was studied by feeding test and slaughter test. [ Re- sult] The growth of Wanxi white geese was slow in the early age, rapid at the age of 2 -5 wk, peaked at about 5 weeks old, and then slowed. The daily weight gain was around 25 g/d at the age of 7 -9 wk. Intestinal growth also peaked at 5 weeks old and almost developed fully at 7 weeks old. Thus, intestinal growth had a similar law with body weight. With the development, the ratios of the length of each intestinal segment to that of total intestinal tract did not vary largely. [ Conclusion] The study provides a theoretical basis for the production and development of germplasm resources of Wanxi white geese.

Study on Development Law of Complex Fluvial Reservoir under Water

The Bozhong oilfield (Hereinafter referred to as BZ oilfield) is a typical representative of complex fluvial reservoirs in the Bohai Sea, located in the southern Bohai Sea, with an average porosity of 30.3% and an average permeability of 643 × 10-3 μm2, belonging to medium high porosity and permeability reservoir, the reservoir has good connectivity, and the average underground crude oil viscosity is 5 mPa·s. There are many plane fault blocks, and the longitudinal oil well section is long, so the oil-water relationship is very complex. With the further development of the oilfield, the vertical and horizontal oil-water movement law, residual oil distribution and potential are unclear, resulting in rapid bottom water coning, unbalanced injection and production in the oilfield, and increasingly prominent contradictions among layers, planes and layers in the oilfield. Through numerical simulation analysis and comparison of displacement law and recovery degree under different influence conditions, this paper studies the development effect of actual sand body under different influence conditions such as different well types, different development methods and well layout positions, and takes appropriate development methods for the oilfield, which is of great significance to improve the development effect of the oilfield.

SOME OF MY UNDERSTANDING ON THE LAW REGARDING S&T DEVELOPMENT

Science, technology and engineering expertise form a treasurehouse of knowledge acquired by man in striving to understand and change nature.They respond respectively to different links of this endless endeavour.So they differ greatly from each other but are closely associated.Science refers to various principles, basic theories and concepts summed up from man’s cognition of natural phenomena,exploration of material movements and related objective laws; technology is the applicable methods and practical means developed from scien-

Comprehensively Implementing the Rule of Law Solidly Pushing Forward Human Rights Development——Interview with President Luo Haocai of the China Society for Human Rights Studies(CSHRS)

The Fourth Plenary Session of the 18th Central Committee of the Communist Party of China （CPC） reviewed and approved the Decision of the CPC Central Committee on Certain Key Issues Concerning Comprehensively Pushing Forward the Rule of Law （hereafter, ＂Decision＂）. The plenary session was convened at a pivotal stage in comprehensively building a well-off society and comprehen- sively deepening reform. It was the first of its kind with the theme of the rule of law and was a landmark event in China＇s legal construction. The Journal interviewed Professor Luo Haocai, who is also president of the China Society for Human Rights Studies （CSHRS）.

Study on the Datong Yak's Skin Development

[Objective] This study was to explore the skin development law of Datong Yak.[Method]Taking Datong yaks at four various growth stages（1 day old,30 days old,180 days old and adult）as experimental materials,we studied histological structure of Datong yak skin by employing the histological methods.[Results]The skins of Datong yak at four various growth stages all showed the characteristics of thinner epidermis and thicker hypodermis,and of less capillary vessels in hypodermis and more pigment cells in epidermis.Datong yak at four various growth stages all showed a fluctuating trend in entire skin thickness,in detail thickening from 1 day old to 30 days old,then thinning to 180 days old,again thickening to adult.[Conclusion]The results provided theoretical basis for further understanding the structural characteristics of Datong yak to adapt to the abominable plateau environment.

On the clash between the traditional culture and the ＂fast food＂ culture from a perspective of internet language

With the development of the Internet, the Internet language-a new social variant of language comes into being. Owing to its distinctive features, the Internet language draws extensive attention and evokes dispute. Should we make laws to restrict its development or be magnanimous and tolerant？ The present authors think that the dispute reflects the clash between the traditional culture and the ＂fast food＂ culture. The two cultures would co-exist harmoniously and co-develop healthily only if we cherish the law in the development of language and grasp the indirect correlation between them.

Predicting the height of water-flow fractured zone during coal mining under the Xiaolangdi Reservoir

It is very important to determine the extent of the fractured zone through which water can flow before coal mining under the water bodies.This paper deals with methods to obtain information about overburden rock failure and the development of the fractured zone while coal mining in Xin'an Coal Mine.The risk of water inrush in this mine is great because 40%of the mining area is under the Xiaolangdi reservoir.Numerical simulations combined with geophysical methods were used in this paper to obtain the development law of the fractured zone under different mining conditions.The comprehensive geophysical method described in this paper has been demonstrated to accurately predict the height of the water-flow fractured zone.Results from the new model, which created from the results of numerical simulations and field measurements,were successfully used for making decisions in the Xin'an Coal Mine when mining under the Xiaolangdi Reservoir.Industrial scale experiments at the number 11201,14141 and 14191 working faces were safely carried out.These achievements provide a successful background for the evaluation and application of coal mining under large reservoirs.

Study on stability of permafrost slopes during thawing

A numerical simulation platform that analyzes the variation of the slope factor of safety with time instantaneously is proposed based on heat conduction theory to study the law of stability development of permafrost slopes during thawing.This platform considers ice-water phase change,elastoplastic constitutive behavior and strength reduction in thawing permafrost and can evaluate the factor of safety of permafrost slopes with different slope angles and water contents.Results indicate that under different slope angles and water contents,the evolution of the factor of safety with time displays two stages:nonlinearly decreasing at first and then essentially remaining constant.During the decreasing stage,the plastic slip line overlaps with the thawing front.In this stage,the selfweight of the post-thawed permafrost layer increases continuously while the shear strength of the frozen-thaw interface keeps unchanged.This is the main reason leading to the decrease in the factor of safety.In the second stage,the thawing depth increases continuously while the position of the plastic slip line remains unchanged,resulting in a constant safety factor stage.

Fluidization science,its development and future

By revisiting the three stage theory for the progress of science proposed by Taketani in 1942, the footmarks of fluidization research are examined. The bubbling and fast fluidization issues were emphasized so that the future offluidization research can be discussed among scientists and engineers in a wider perspective. The first cycle of fluidization research was started in the early 1940s by an initial stage of phenomenology. The second stage of structural studies was kicked off in the early 1950s with the introduction of the two phase theory. The third stage of essential studies occurred in the early 1960s in the form of bubble hydrodynamics. The second cycle, which confirmed the aforementioned three stages closed at the turn of the century, established a general understanding of suspension structures including agglomerating fluidization, bubbling, turbulent and fast fluidizations and pneumatic transport; also established powerful measurement and numerical simulation tools.After a general remark on science, technology and society issues the interactions between fluidization technology and science are revisited. Our future directions are discussed including the tasks in the third cycle, particularly in its phenomenology stage where strong motivation and intention are always necessary, in relation also to the green reforming of the present technology. A generalized definition of ＇fluidization＇ is proposed to extend fluidization principle into much wider scientific fields, which would be effective also for wider collaborations.