Presently most of research results on strata behaviors were concluded under the normal （moderate） advance rate conditions. Comparing with normal advance rate, fast advance rate and slow advance rate may cause some n...Presently most of research results on strata behaviors were concluded under the normal （moderate） advance rate conditions. Comparing with normal advance rate, fast advance rate and slow advance rate may cause some new changes of strata behaviors. The characteristics of ground pressure behaviors in working face with great mining height at different forward speeds were studied by similarity model experiment in laboratory. Its conclusion provides a theoretic basis for ground pressure controlling.展开更多
Here we are, at this springtime, at Tianjin-based Nankai University for this, the Second NationalConference for Experience-Sharing by Human Rights Studies Institutions. This gathering is an event of great importance t...Here we are, at this springtime, at Tianjin-based Nankai University for this, the Second NationalConference for Experience-Sharing by Human Rights Studies Institutions. This gathering is an event of great importance to academic studies of human rights in China, highlighting the liveliness and vitality characteristic of our work.展开更多
Francis Scott Key Fitzgerald, short story and long story writer of American culture history in twentieth century. His representatives "The Great Gatsby," is set in the context of the twenties of the twentiet...Francis Scott Key Fitzgerald, short story and long story writer of American culture history in twentieth century. His representatives "The Great Gatsby," is set in the context of the twenties of the twentieth century in New York City, tells the story: a young and mysterious millionaire Gatsby has been courting Daisy. Under such a story, reveals the fact: American society was reflected in emptiness, pleasure, contradictory spiritual ideas, praise people who fought for the ideals and spirit of dedication.These articles start from the Social Significance as Reflected in The Great Gatsby.展开更多
The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following： roof fall and col,lapse with cavity, advancing support and supporting. Took single suppor...The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following： roof fall and col,lapse with cavity, advancing support and supporting. Took single support with four-pole in Iongwall face to the dip as research object, control method was studied to avoid support instability in three situations mentioned above. Based on these researches, the major factors of influencing on support stability and its controlling measures were put forward. According to specific conditions of working face 1215（3）, which is fully-mechanized and Iongwall face to the dip with great mining height in Zhangji Coal Mine, Huainan Mining Group, the effective measures was taken to control supports stability..展开更多
文摘Presently most of research results on strata behaviors were concluded under the normal （moderate） advance rate conditions. Comparing with normal advance rate, fast advance rate and slow advance rate may cause some new changes of strata behaviors. The characteristics of ground pressure behaviors in working face with great mining height at different forward speeds were studied by similarity model experiment in laboratory. Its conclusion provides a theoretic basis for ground pressure controlling.
文摘Here we are, at this springtime, at Tianjin-based Nankai University for this, the Second NationalConference for Experience-Sharing by Human Rights Studies Institutions. This gathering is an event of great importance to academic studies of human rights in China, highlighting the liveliness and vitality characteristic of our work.
文摘Francis Scott Key Fitzgerald, short story and long story writer of American culture history in twentieth century. His representatives "The Great Gatsby," is set in the context of the twenties of the twentieth century in New York City, tells the story: a young and mysterious millionaire Gatsby has been courting Daisy. Under such a story, reveals the fact: American society was reflected in emptiness, pleasure, contradictory spiritual ideas, praise people who fought for the ideals and spirit of dedication.These articles start from the Social Significance as Reflected in The Great Gatsby.
文摘The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following： roof fall and col,lapse with cavity, advancing support and supporting. Took single support with four-pole in Iongwall face to the dip as research object, control method was studied to avoid support instability in three situations mentioned above. Based on these researches, the major factors of influencing on support stability and its controlling measures were put forward. According to specific conditions of working face 1215（3）, which is fully-mechanized and Iongwall face to the dip with great mining height in Zhangji Coal Mine, Huainan Mining Group, the effective measures was taken to control supports stability..
