The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was fore...The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was forecasted, so as to provide reference for landscape management and other relevant departments to effec- tively control the insect.展开更多
On the basis of spectroscopic evidence (MS, ~1HNMR, ^(13)CNMR, CD, ~1H-~1H and ~1H-^(13)C cosy NMR) and chemical synthesis, the structure of isodopharicin E (1), isolated from the dry leaves and tender branches of Iso...On the basis of spectroscopic evidence (MS, ~1HNMR, ^(13)CNMR, CD, ~1H-~1H and ~1H-^(13)C cosy NMR) and chemical synthesis, the structure of isodopharicin E (1), isolated from the dry leaves and tender branches of Isodon pharicus (Prain) Murata was elucidated as 3R, 3'R, 13S, 13'S-tetrahydroxy-11S, 11'S-diacetoxy(16S-O-15')-bisentkaur-15'-en-15-one.展开更多
Murata Electronics North Alnerica公司推出其NFM18PS 0603表面贴装型3端电容系列。这一新型电容采用经改进的电极结构，据称可以减少等效串联电感(ESL)，从而改善高频滤波性能，在100MHZ～1GHz插损50dB～70dB。该系列适于使用在数字...Murata Electronics North Alnerica公司推出其NFM18PS 0603表面贴装型3端电容系列。这一新型电容采用经改进的电极结构，据称可以减少等效串联电感(ESL)，从而改善高频滤波性能，在100MHZ～1GHz插损50dB～70dB。该系列适于使用在数字电子设备中，如DVD。展开更多
贸泽电子备货Murata的WSM-BL241蓝牙?低功耗模块。WSM-BL241基于Nordic n RF52832片上系统(So C),以小尺寸封装提供超低功耗蓝牙5功能,适用于物联网(Io T)、资产跟踪、信标和医疗等各种应用。贸泽电子供应的Murata WSM-BL241模块利用性...贸泽电子备货Murata的WSM-BL241蓝牙?低功耗模块。WSM-BL241基于Nordic n RF52832片上系统(So C),以小尺寸封装提供超低功耗蓝牙5功能,适用于物联网(Io T)、资产跟踪、信标和医疗等各种应用。贸泽电子供应的Murata WSM-BL241模块利用性能强悍的Nordic n RF52832 So C在智能手机。展开更多
A three-dimensional computational fluid dynamics model is developed by software Fluent 6.2, to simulate the flow field inside the nozzle block of the Murata vortex spinning. The flowing state and the distribution law ...A three-dimensional computational fluid dynamics model is developed by software Fluent 6.2, to simulate the flow field inside the nozzle block of the Murata vortex spinning. The flowing state and the distribution law of static pressure and velocity are characterized and analyzed. The relationship between the flowing state and the structure of the vortex spun yarn is also discussed. The research results can enhance the understanding of the yarn formation principle from viewpoint of the airflow field law inside the nozzle block of Murata vortex spinning.展开更多
文摘The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was forecasted, so as to provide reference for landscape management and other relevant departments to effec- tively control the insect.
文摘On the basis of spectroscopic evidence (MS, ~1HNMR, ^(13)CNMR, CD, ~1H-~1H and ~1H-^(13)C cosy NMR) and chemical synthesis, the structure of isodopharicin E (1), isolated from the dry leaves and tender branches of Isodon pharicus (Prain) Murata was elucidated as 3R, 3'R, 13S, 13'S-tetrahydroxy-11S, 11'S-diacetoxy(16S-O-15')-bisentkaur-15'-en-15-one.
文摘Murata Electronics North Alnerica公司推出其NFM18PS 0603表面贴装型3端电容系列。这一新型电容采用经改进的电极结构，据称可以减少等效串联电感(ESL)，从而改善高频滤波性能，在100MHZ～1GHz插损50dB～70dB。该系列适于使用在数字电子设备中，如DVD。
文摘贸泽电子备货Murata的WSM-BL241蓝牙?低功耗模块。WSM-BL241基于Nordic n RF52832片上系统(So C),以小尺寸封装提供超低功耗蓝牙5功能,适用于物联网(Io T)、资产跟踪、信标和医疗等各种应用。贸泽电子供应的Murata WSM-BL241模块利用性能强悍的Nordic n RF52832 So C在智能手机。
基金This project is supported by the National Natural Science Foundation of China,under grant No.10872047.
文摘A three-dimensional computational fluid dynamics model is developed by software Fluent 6.2, to simulate the flow field inside the nozzle block of the Murata vortex spinning. The flowing state and the distribution law of static pressure and velocity are characterized and analyzed. The relationship between the flowing state and the structure of the vortex spun yarn is also discussed. The research results can enhance the understanding of the yarn formation principle from viewpoint of the airflow field law inside the nozzle block of Murata vortex spinning.
