70 research outputs found
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Controllable Laser Ion Acceleration
In this paper a future laser ion accelerator is discussed to make the laser-based ion accelerator compact and controllable. Especially a collimation device is focused in this paper. The future laser ion accelerator should have an ion source, ion collimators, ion beam bunchers, and ion post acceleration devices [Laser Therapy 22, 103(2013)]: the ion particle energy and the ion energy spectrum are controlled to meet requirements for a future compact laser ion accelerator for ion cancer therapy or for other purposes. The energy efficiency from the laser to ions is improved by using a solid target with a fine sub-wavelength structure or a near-critical density gas plasma. The ion beam collimation is performed by holes behind the solid target or a multi-layered solid target. The control of the ion energy spectrum and the ion particle energy, and the ion beam bunching would be successfully realized by a multistage laser-target interaction
Effects of polysaccharide from Ophiopogon japonicus on immune response to Newcastle disease vaccine in chicken
Tourist typology in social contact: An addition to existing theories
Tourist-host social contact, as a unique type of social contact, is not getting sufficient attention in tourism academia considering its remarkable impacts on tourists’ travel attitudes, behaviors and long-term perceptions. The objectives of the current study are to explore the dimensions of tourist-host social contact and to contribute to the theory of tourist typology according to their dynamic nature in tourist-host social interaction. Forty-five in-depth interviews were conducted to generate insightful information. The software of NVivo 10 was applied to examine and code the transcripts. As a result, six dimensions were adopted to describe tourist-host social contact, which are purposes, determinants, activities, intensity, impacts and attitudes. Five types of tourists were pinpointed and theoretical and practical contributions of the study were discussed
Effect of In Doping on Thermoelectric and Magnetoresistive Properties of ZnO Films Prepared by RF Magnetron Sputtering
Calculation of ternary Si-Fe-Al phase equilibrium in vacuum distillation by molecular interaction volume model
The variation of summer monsoon precipitation in central China since the last deglaciation
The study on DNA methylation of p53-Bax mitochondrial apoptosis pathway in cholangiocarcinoma
INHERITED IL-12R beta 2 DEFICIENCY CAUSES MYCOBACTERIAL SUSCEPTIBILITY
Immunogenetics and cellular immunology of bacterial infectious disease
INHERITED IL-12R beta 2 DEFICIENCY CAUSES MYCOBACTERIAL SUSCEPTIBILITY
Immunogenetics and cellular immunology of bacterial infectious disease
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