To resolve inflation of inertial confinement fusion (ICF) target and encapsulation of micro inflation hole with adhesive, a scanning probe microscope (SPM) diamond microprobe was used as the cutting tool with SPM in c...To resolve inflation of inertial confinement fusion (ICF) target and encapsulation of micro inflation hole with adhesive, a scanning probe microscope (SPM) diamond microprobe was used as the cutting tool with SPM in contact mode. Some parameters influencing the quality of micro inflation hole, such as the scanning direction of the diamond tip, the scanning rate and the contact force are discussed. Accurate taper hole was achieved whose climension and precision could meet the requirements of inflation and encapsulation technique of micro hole. The experimental results show that using SPM diamond microprobe as the cutting tool and with special processing technique, the precision machining of target capsule's taper inflation hole can be realized. A novel operative technology for filling high Z gas to target is provided.展开更多
Using Michael Porter's "diamond model", based on regional development characteristics, we conduct analysis of the competitiveness of processing industry cluster of livestock products in Inner Mongolia fr...Using Michael Porter's "diamond model", based on regional development characteristics, we conduct analysis of the competitiveness of processing industry cluster of livestock products in Inner Mongolia from six aspects (the factor conditions, demand conditions, corporate strategy, structure and competition, related and supporting industries, government and opportunities). And we put forward the following rational recommendations for improving the competitiveness of processing industry cluster of livestock products in Inner Mongolia: (i) The government should increase capital input, focus on supporting processing industry of livestock products, and give play to the guidance and aggregation effect of financial funds; (ii) In terms of enterprises, it is necessary to vigorously develop leading enterprises, to give full play to the cluster effect of the leading enterprises.展开更多
Plasma treatments of boron-doped nano-crystalline diamond （NCD） thin films were carried out in order to improve their electrical properties of the films. Boron-doped NCD thin films were fabricated on well polished p...Plasma treatments of boron-doped nano-crystalline diamond （NCD） thin films were carried out in order to improve their electrical properties of the films. Boron-doped NCD thin films were fabricated on well polished poly-crystalline diamond （PCD） thick films in a microwave plasma enhanced chemical vapor deposition （MPCVD） reactor, then they were processed in methane, ar- gon, hydrogen and B2H~ （0.1% diluted by H~） plasmas, respectively. Scanning electron microscopy （SEM） and atomic force microscope （AFM） results show that the surface morphology changed lit- tle during the 10 min treatment. Secondary ion mass spectroscopy （SIMS） results indicate that B2H6 plasma was efficient for increasing boron concentration in NCD films, while the carrier anal- yses demonstrates that CH4 plasma processing was effective to activate the dopants and resulted in good electrical properties.展开更多
用数控钻床进行陶瓷打孔时,当转速达到一定值后,刀具会发生剧烈振动,导致金刚石刀片脱落并损坏刀具。为改善这一问题,选取？24、60、90 mm 三种刀具进行研究,得出其发生破坏时的转速范围。结果显示：打孔工序中,金刚石刀具的合理转速随...用数控钻床进行陶瓷打孔时,当转速达到一定值后,刀具会发生剧烈振动,导致金刚石刀片脱落并损坏刀具。为改善这一问题,选取？24、60、90 mm 三种刀具进行研究,得出其发生破坏时的转速范围。结果显示：打孔工序中,金刚石刀具的合理转速随刀具半径的增大而增大；？24 mm 的刀具其合理转速为1500~1650 r/min,？60 mm 的刀具其合理转速为1650~1720 r/min,？90 mm 的刀具其合理转速为1700~1800 r/min。在转速合理的情况下,适当加大进给速度可以提高加工效率。展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant No.50275039)the Scientific Research Foundation of Harbin Institute of Technology(HIT2002.23).
文摘To resolve inflation of inertial confinement fusion (ICF) target and encapsulation of micro inflation hole with adhesive, a scanning probe microscope (SPM) diamond microprobe was used as the cutting tool with SPM in contact mode. Some parameters influencing the quality of micro inflation hole, such as the scanning direction of the diamond tip, the scanning rate and the contact force are discussed. Accurate taper hole was achieved whose climension and precision could meet the requirements of inflation and encapsulation technique of micro hole. The experimental results show that using SPM diamond microprobe as the cutting tool and with special processing technique, the precision machining of target capsule's taper inflation hole can be realized. A novel operative technology for filling high Z gas to target is provided.
基金Supported by National Natural Science Foundation(70963014,71210107012)
文摘Using Michael Porter's "diamond model", based on regional development characteristics, we conduct analysis of the competitiveness of processing industry cluster of livestock products in Inner Mongolia from six aspects (the factor conditions, demand conditions, corporate strategy, structure and competition, related and supporting industries, government and opportunities). And we put forward the following rational recommendations for improving the competitiveness of processing industry cluster of livestock products in Inner Mongolia: (i) The government should increase capital input, focus on supporting processing industry of livestock products, and give play to the guidance and aggregation effect of financial funds; (ii) In terms of enterprises, it is necessary to vigorously develop leading enterprises, to give full play to the cluster effect of the leading enterprises.
基金supported by the Research Fund of Hubei Provincial Department of Education of China (No.Q20081505)
文摘Plasma treatments of boron-doped nano-crystalline diamond （NCD） thin films were carried out in order to improve their electrical properties of the films. Boron-doped NCD thin films were fabricated on well polished poly-crystalline diamond （PCD） thick films in a microwave plasma enhanced chemical vapor deposition （MPCVD） reactor, then they were processed in methane, ar- gon, hydrogen and B2H~ （0.1% diluted by H~） plasmas, respectively. Scanning electron microscopy （SEM） and atomic force microscope （AFM） results show that the surface morphology changed lit- tle during the 10 min treatment. Secondary ion mass spectroscopy （SIMS） results indicate that B2H6 plasma was efficient for increasing boron concentration in NCD films, while the carrier anal- yses demonstrates that CH4 plasma processing was effective to activate the dopants and resulted in good electrical properties.
文摘用数控钻床进行陶瓷打孔时,当转速达到一定值后,刀具会发生剧烈振动,导致金刚石刀片脱落并损坏刀具。为改善这一问题,选取？24、60、90 mm 三种刀具进行研究,得出其发生破坏时的转速范围。结果显示：打孔工序中,金刚石刀具的合理转速随刀具半径的增大而增大；？24 mm 的刀具其合理转速为1500~1650 r/min,？60 mm 的刀具其合理转速为1650~1720 r/min,？90 mm 的刀具其合理转速为1700~1800 r/min。在转速合理的情况下,适当加大进给速度可以提高加工效率。
