With the development of society,the virtual reality technology and multimedia technology have been applied to modern large-scale agriculture. The paper describes the design ideas for animation display of mechanized ri...With the development of society,the virtual reality technology and multimedia technology have been applied to modern large-scale agriculture. The paper describes the design ideas for animation display of mechanized rice production in cold region,and elaborates the design of major part of each scene. By animation display,we can know about the whole process of rice production,as well as the benefits of mechanized operation.展开更多
A pioneer research work was carried out by investigators engaged in surveying and mapping for describing ancient Chinese timber buildings by 3D frame graphs with a computer.Users can know the structural layers and the...A pioneer research work was carried out by investigators engaged in surveying and mapping for describing ancient Chinese timber buildings by 3D frame graphs with a computer.Users can know the structural layers and the assembly process of these buildings if the frame graphs are processed further with a computer model.This can be implemented by computer simulation technique.This technique display the raw data on the screen of a computer and interactively manage them by combining technologies from computer graphics and image processing,multi-media technology,artificial intelligence,highly parallel real-time computation technique and human behavior science.This paper presents the implementing procedure of lignification simulation for large-sized wooden buildings as well as 3D dynamic assembly of these buildings under the 3DS MAX environment.The results from computer simulation are also shown in the paper.展开更多
Organic light-emitting diodes(OLEDs)used in virtual and augmented reality displays require micrometer-scale red-green-blue(RGB)pixel patterns in the emissive layer(EML).However,conventional patterning methods based on...Organic light-emitting diodes(OLEDs)used in virtual and augmented reality displays require micrometer-scale red-green-blue(RGB)pixel patterns in the emissive layer(EML).However,conventional patterning methods based on evaporation and shadow masks can only produce patterns larger than tens of micrometers owing to the geometric constraint of the mask.Herein,an indirect method for photopatterning solution-processed OLED EMLs is proposed,which can be used to form micrometer-scale RGB pixel patterns without involving direct exposure to UV radiation or harsh etching processes on EMLs.EMLs can be patterned byⅰ)forming a sacrificial photoresist(PR)pattern,ⅱ)spin-coating an EML film,ⅲ)converting the EML film into a single-phase network(SPN)structure by crosslinking vinylbenzyl-group-appended hosts and dopants at a low temperature,andⅳ)stripping the pre-formed PR pattern.Furthermore,repeating the process thrice results in the formation of RGB EML patterns.During the repeated process,the sacrificial PR pattern serves as a protective layer for the underlying EML pattern,effectively preventing the EML pattern from being exposed to solutions in subsequent processes.Using a conventional photolithography setup,we produced sets of RGB EML patterns with densities exceeding 3000 patterns/in.,which indicated the potential of the method for industrial use.展开更多
基金Supported by Natural Science Foundation of Heilongjiang Province(F201428)Foundation of Heilongjiang Reclamation Area(HNK125B-04-06)
文摘With the development of society,the virtual reality technology and multimedia technology have been applied to modern large-scale agriculture. The paper describes the design ideas for animation display of mechanized rice production in cold region,and elaborates the design of major part of each scene. By animation display,we can know about the whole process of rice production,as well as the benefits of mechanized operation.
文摘A pioneer research work was carried out by investigators engaged in surveying and mapping for describing ancient Chinese timber buildings by 3D frame graphs with a computer.Users can know the structural layers and the assembly process of these buildings if the frame graphs are processed further with a computer model.This can be implemented by computer simulation technique.This technique display the raw data on the screen of a computer and interactively manage them by combining technologies from computer graphics and image processing,multi-media technology,artificial intelligence,highly parallel real-time computation technique and human behavior science.This paper presents the implementing procedure of lignification simulation for large-sized wooden buildings as well as 3D dynamic assembly of these buildings under the 3DS MAX environment.The results from computer simulation are also shown in the paper.
基金supported by the National R&D Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Science and ICT(NRF-2023R1A2C3006550,2021R1A2C2008332,and RS-2024-00445116)。
文摘Organic light-emitting diodes(OLEDs)used in virtual and augmented reality displays require micrometer-scale red-green-blue(RGB)pixel patterns in the emissive layer(EML).However,conventional patterning methods based on evaporation and shadow masks can only produce patterns larger than tens of micrometers owing to the geometric constraint of the mask.Herein,an indirect method for photopatterning solution-processed OLED EMLs is proposed,which can be used to form micrometer-scale RGB pixel patterns without involving direct exposure to UV radiation or harsh etching processes on EMLs.EMLs can be patterned byⅰ)forming a sacrificial photoresist(PR)pattern,ⅱ)spin-coating an EML film,ⅲ)converting the EML film into a single-phase network(SPN)structure by crosslinking vinylbenzyl-group-appended hosts and dopants at a low temperature,andⅳ)stripping the pre-formed PR pattern.Furthermore,repeating the process thrice results in the formation of RGB EML patterns.During the repeated process,the sacrificial PR pattern serves as a protective layer for the underlying EML pattern,effectively preventing the EML pattern from being exposed to solutions in subsequent processes.Using a conventional photolithography setup,we produced sets of RGB EML patterns with densities exceeding 3000 patterns/in.,which indicated the potential of the method for industrial use.
