Modular Link Level Simulator for Physical Layer of Beyond 5G Wireless Communication System
Wen Xiaozhi has been saying thatEditor | Xiaozhi has been sayingBefore reading this article, we sincerely invite you to click on 'Follow', which not only facilitates your discussion and sharing, but also brings you a different sense of participation. Thank you for your supportprefaceThe low terahertz band is a promising candidate for achieving data rates up to 1Tbit/s...
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Phonon Coupling - Electrons in CdSe, CdS Cores, and Shell Quantum Dots
Xu Chenyuan's StudyEditor | Xu Chenyuan's StudyWe found that peak CdS frequency affects excitationStrong dependence on energyBetween the experimental frequency of the CdSe+CdS combination band and the sum of the corresponding fundamental frequencyThere is still a huge differenceThis indicates that the main transition at high excitation energy is limited to the CdSe core or CdS shell, and therefore cannot enhance the binding band transition between the core and shellThe Raman intensity ratio of CdS to CdSe further supports this viewpoint. The Phonon of CdSeLO in the Lowest Exciton TransitionElectron phonon coupling is slightly weaker in core/shell structures than in pure CdSe quantum dotsThis is contrary to the expectation of the Frehlich coupling mechanism...
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[Areyoustillingitin2023?]
OnSeptember11,2019,at1:00AM(BeijingTime),AppleInc.unveiledtheiPhone11attheSteveJobsTheater...
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WeChat empty handed payment function is online! Are you still scanning the code on your phone?
Have you ever had the experience of forgetting to bring your phone or running out of battery when you go out, and wanting to make a payment but unable to do anything about it? Have you ever had such concerns about whether Facebook payments will leak your privacy or be stolen? Have you ever had the idea that it would be so convenient to make a payment with the palm of your hand!If you have any of the above situations, then I have a good news to tell you: WeChat empty handed payment function has officially been launched!What is the WeChat empty handed payment function? Simply put, it means that users can perform palm swiping operations on the face swiping device without the need to scan codes or swipe cards to complete payment.This feature is safer and more accurate than facial payment, as it reads the veins of the palm blood vessels rather than the epidermal veins...
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Don't blindly switch to IT just because you have a high income, not everyone is suitable for it
IT is the fastest growing industry in recent years, and programmers are also the most sought after and popular profession. Even if many laymen are unsure of what front-end, back-end, engineer, architect, or Java, Web, C #, Python are all for, they have already made up their minds to switch to IT...
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Thermal Error Modeling of Ball Screw Based on Neural Network System
Wen|Zhang ShirenEdit|Zhang ShirenIn the pursuit of high-precision modern CNC systems, thermal error, also known as thermal deformation error, is increasingly receiving attention. According to research,Thermal deformation error has become the main source of error for CNC machine tools, accounting for 40% to 70% of the total error...
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Is Alibaba's business line undergoing major layoffs due to online rumors, and the internet needs to be shaken three times?
Recently, there are rumors that multiple businesses under Alibaba Group, including Taobao, Taobao, Alibaba Cloud, and CTO, may start rolling layoffs, with a proportion of 20% to 30%. This news has sparked widespread attention and discussion in the industry, so the question is, has Alibaba laid off employees? If so, what are the scale, scope, and reasons for layoffs? What does this mean for Alibaba's future development and the entire internet industry?Alibaba response: Optimization of normal organizational positions and personnelAlibaba has provided an official response to the news of layoffs spread online...
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China's first beautiful robot was born, customize a robot wife, are you willing to marry one?
China's first intelligent beauty robot is single and can provide private customization services. Would you like to live with an intelligent beauty robot?Decades ago, information was blocked and the development of intelligent devices was slow...
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SpringBoot unified processing: login verification interceptor, exception handling, data format return
Spring Boot AOP HandlerInterceptor + WebMvcConfigurer @RestControllerAdvice + @ExceptionHandler @ControllerAdvice @ResponseBodyAdvice1. Session Session Spring AOP Spring 1...
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Wuling Hongguang MINIEV officially announced a maximum price reduction of 13000 yuan, starting from 29800 yuan for the entire series
On May 22nd, Wuling Motors announced the "first shot of new energy vehicles going to the countryside". Wuling Motors stated that in response to the policy of new energy vehicles going to the countryside, the Wuling Hongguang MINIEV family has directly reduced the price by 13000 yuan at most, with the entire series of models starting from 29800 yuan...
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Is the online traffic card the same as the business hall? What is the difference?
Nowadays, whether it is in the offline business hall or online, it is possible to apply for phone cards. So, what are the differences between the phone cards processed through these two channels? What are the advantages and disadvantages? Let's take a look together...
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Funeng Technology: SPS technology will be synchronously planned in new production capacity and plans to gradually iterate existing production lines
On May 22nd, Funeng Technology stated on the investor interaction platform that the SPS technology released by the company will be synchronously planned in new production capacity, and plans to gradually iterate existing production lines, fully promoting the industrialization process of SPS technology. At present, the company's capacity planning and expansion work is steadily progressing as planned...
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