Social Services ethical behavior is the norm university college norms and values of social service selection. The current lot of negative factors that exist in society, leading to social service ethic universities fac...Social Services ethical behavior is the norm university college norms and values of social service selection. The current lot of negative factors that exist in society, leading to social service ethic universities face many practical difficulties： for guiding spirit of paranoia shaken ethical orientation of social services for the blind t,argets deep extension of the apparent deviation ethics of social services, the service Preference object affects the ethical tone of social services for their properties to accommodate non-independent eroding the foundation of ethics established by the social services. Therefore, the identification of good ethical order, to call college cultural consciousness, lifting universities utilitarian development difficulties, reasonably determine the role of university social services, the ability to face the limits of educational services, social services, colleges and universities to guide ethical behavior.展开更多
Two-dimensional(2 D) materials have attracted intense attention in photonics and optoelectronics for their excellent nonlinear characteristics and are applied for the generation of laser pulses. Here, an active–passi...Two-dimensional(2 D) materials have attracted intense attention in photonics and optoelectronics for their excellent nonlinear characteristics and are applied for the generation of laser pulses. Here, an active–passive Nd:GdVO_4 1.3 μm laser is realized by using an acousto-optic modulator and gold nanobipyramids absorber.The pulse width of 150.5 ns is obtained in the doubly Q-switched laser. The compression ratio and enhancement time are 82.6% and 16. The doubly Q-switched technology compresses the pulse width, improves the peak power,and stabilizes the pulse, illustrating that double modulation technology opens the door of controllable ultrafast lasers based on 2 D materials.展开更多
文摘Social Services ethical behavior is the norm university college norms and values of social service selection. The current lot of negative factors that exist in society, leading to social service ethic universities face many practical difficulties： for guiding spirit of paranoia shaken ethical orientation of social services for the blind t,argets deep extension of the apparent deviation ethics of social services, the service Preference object affects the ethical tone of social services for their properties to accommodate non-independent eroding the foundation of ethics established by the social services. Therefore, the identification of good ethical order, to call college cultural consciousness, lifting universities utilitarian development difficulties, reasonably determine the role of university social services, the ability to face the limits of educational services, social services, colleges and universities to guide ethical behavior.
基金supported by the National Natural Science Foundation of China(No.61475089)the Development Projects of Shandong Province Science and Technology(No.2017GGX30102)
文摘Two-dimensional(2 D) materials have attracted intense attention in photonics and optoelectronics for their excellent nonlinear characteristics and are applied for the generation of laser pulses. Here, an active–passive Nd:GdVO_4 1.3 μm laser is realized by using an acousto-optic modulator and gold nanobipyramids absorber.The pulse width of 150.5 ns is obtained in the doubly Q-switched laser. The compression ratio and enhancement time are 82.6% and 16. The doubly Q-switched technology compresses the pulse width, improves the peak power,and stabilizes the pulse, illustrating that double modulation technology opens the door of controllable ultrafast lasers based on 2 D materials.
