Thioacetamide Additive Homogenizing Zn Deposition Revealed by In Situ Digital Holography for Advanced Zn Ion Batteries

Zinc ion batteries are considered as potential energy storage devices due to their advantages of low-cost,high-safety,and high theoretical capacity.However,dendrite growth and chemical corrosion occurring on Zn anode limit their commercialization.These problems can be tackled through the optimization of the electrolyte.However,the screening of electrolyte additives using normal electrochemical methods is time-consuming and labor-intensive.Herein,a fast and simple method based on the digital holography is developed.It can realize the in situ monitoring of electrode/electrolyte interface and provide direct information concerning ion concentration evolution of the diffusion layer.It is effective and time-saving in estimating the homogeneity of the deposition layer and predicting the tendency of dendrite growth,thus able to value the applicability of electrolyte additives.The feasibility of this method is further validated by the forecast and evaluation of thioacetamide additive.Based on systematic characterization,it is proved that the introduction of thioacetamide can not only regulate the interficial ion flux to induce dendrite-free Zn deposition,but also construct adsorption molecule layers to inhibit side reactions of Zn anode.Being easy to operate,capable of in situ observation,and able to endure harsh conditions,digital holography method will be a promising approach for the interfacial investigation of other battery systems.

Experimental investigation of interface curing stresses between PMMA and composite using digital speckle correlation method

This paper studies the interface curing stresses between polymethyl methacrylate (PMMA) and composite by means of digital speckle correlation method (DSCM).A new method by combining DSCM with the marker points is developed to measure the interface curing stresses,and the measurement principle is introduced.The interface curing stresses between PMMA and composite with different curing bonding conditions are measured and analyzed,this indicates that the residual stress for furnace heating and furnace cooling is the smallest.Finally,the measurement error is discussed by means of finite element method,the influences of glass microsphere between adhesive and PMMA can be ignored.

A smartcard conditional access interface scheme for conditional access subsystem separation in digital TV broadcasting

Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV op-erators manage the appropriate rights of different subscribers in order to protect their commercial benefits. The normal digital TV receiver can only receive and decode the pay TV programs scrambled by one specific CAS. In this paper, the authors proposed a smartcard conditional access interface (SCAI) scheme in order to make the digital TV receiver be a common receiving platform independent of any specific CAS employed at the broadcasting head-end. As a result, it only needs to include a common condi-tional access software package (CCAP) without any requirement of hardware modification in the receiver. Comparison between the two mentioned DVB-CI-based schemes showed that the cost of such kind receiver is greatly reduced. The main design points of the proposed scheme and its reference implementation’s architecture are presented in this paper. This scheme is also one of the candidate national standards for Chinese digital TV broadcasting industry.

A Study of Electromyogram Based on Human-Computer Interface

In this paper, a new control system based on forearm electromyogram （EMG） is proposed for computer peripheral control and artificial prosthesis control. This control system intends to realize the commands of six pre-defined hand poses： up, down, left, right, yes, and no. In order to research the possibility of using a unified amplifier for both electroencephalogram （EEG） and EMG, the surface forearm EMG data is acquired by a 4-channel EEG measurement system. The Bayesian classifier is used to classify the power spectral density （PSD） of the signal. The experiment result verifies that this control system can supply a high command recognition rate （average 48%） even the EMG data is collected with an EEG system just with single electrode measurement.

Interface Design Of Digital Platform For Bio Signal Processing

Bio-sensor arrays for multi-channel recording have been developed recently and signal processing platforms for those signals have been studied actively.But it’s thereal situation which these technologies are generally developed and studied respectively.So the interface design between recording array and signal processing platform is also an important issue to make bio-sensor signal processing system.In this paper,we proposed interface which has unique protocols to control sensor array and operate platform.There are two types of protocols in the interface.One is between sensor array and MCU in platform and the other is between MCU and board for wireless communication.Basically,each protocol has two kinds of modes(single,frame)and it can be extended if needed.

Designing interactive glazing through an engineering psychology approach:Six augmented reality scenarios that envision future car human-machine interface

Background With an increasing number of vehicles becoming autonomous,intelligent,and connected,paying attention to the future usage of car human-machine interface with these vehicles should become more relevant.Several studies have addressed car HMI but were less attentive to designing and implementing interactive glazing for every day(autonomous)driving contexts.Methods Reflecting on the literature,we describe an engineering psychology practice and the design of six novel future user scenarios,which envision the application of a specific set of augmented reality(AR)support user interactions.Additionally,we conduct evaluations on specific scenarios and experiential prototypes,which reveal that these AR scenarios aid the target user groups in experiencing a new type of interaction.The overall evaluation is positive with valuable assessment results and suggestions.Conclusions This study can interest applied psychology educators who aspire to teach how AR can be operationalized in a human-centered design process to students with minimal pre-existing expertise or minimal scientific knowledge in engineering psychology.

Digital Simulation Platform for Satellite Launch Mission Verification

To simulate the satellite launch mission under a general platform which could be used in a full-digital mode as well as in a semi-physical way, is an important way to certify the mission design performance as well as technical feasibilities, and it relates to complex system simulation methods such as multi-disciplinary coupling, multi-language modeling as well as interactive simulation and virtual simulation technologies. This paper introduces the design of a digital simulation platform for satellite launch mission verification.The platform has the advantages of high generality and extensibility, being easy to build up. The Functional Mockup Interface(FMI) Standard is adopted to achieve integration of multi-source models. A WebGL based 3D visual simulation tool is also adopted to implement the virtual display system which could display the rocket launch process and rocket-satellite separation with high fidelity 3D virtual scenes. A configuration tool was developed to map the 3D objects in the visual scene with simulation physical variables for complex rocket flight control mechanisms, which greatly improves the platform's generality and extensibility. Finally the real-time performance had been tested and the YL-1 launch mission was adopted to demonstrate the functions of the platform.The platform will be used to construct a digital twin system for satellite launch missions in the future.

Secure Digital Card(SD卡)与LPC2210的接口设计

本文基于一款ARM7芯片LPC2210实现对SD卡数据存储,并使用RAM作为数据的暂存区,当达到一个块的大小即512字节时,一次存入SD卡。首先对SD卡的特点作了简单的介绍,然后从接口设计和软件两个方面予以说明。

Three-dimensional visualization interactive system for digital twin workshop

To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of the 3D visualization interactive system for digital twin workshops is proposed.As the traditional 5D digital twin model ignores the importance of human-computer interaction,a new dimension of the user terminal was added.A hierarchical real-time data-driven mapping model for the workshop production process is then proposed.Moreover,a real-time data acquisition method for the industrial Internet of things is proposed based on OPC UA(object linking and embedding for process control unified architecture).Based on the 6D model of the system,the process of creating a 3D visualization virtual environment based on virtual reality is introduced,in addition to a data-driven process based on the data management cloud platform.Finally,the 6D model of the system was confirmed using the blade rotor test workshop as the object,and a 3D visualization interactive system is developed.The results show that the system is more transparent,real-time,data-driven and more efficient,as well as promotes the coordination and integration of human-physical-virtual,which has practical significance for developing digital twin workshops.

Information visualization,physicality and intuitive use for tangible user interfaces

In the last two decades, tangible user interfaces （TUIs） have emerged as a new interface type that interlinks the digital and physical worlds. TUIs show a potential to enhance the way in which people interact with digital information. First, this paper exam- ines the existing body of work on tangible user interfaces and discusses their application domains, especially information visualiza- tion. Then it provides a definition of intuitive use and reviews formerly separated ideas on physicality. As interaction has an impact on the overall product experience, we also discuss whether intuitive use influences the users＇ aesthetic judgements of such products.

Navigation in virtual and real environment using brain computer interface:a progress report

A brain-computer interface (BCI) facilitates bypassing the peripheral nervous system and directly communicating with surrounding devices. Navigation technology using BCI has developed-from exploring the prototype paradigm in the virtual environment (VE) to accurately completing the locomotion intention of the operator in the form of a powered wheelchair or mobile robot in a real environment. This paper summarizes BCI navigation applications that have been used in both real and VEs in the past 20 years. Horizontal comparisons were conducted between various paradigms applied to BCI and their unique signal-processing methods. Owing to the shift in the control mode from synchronous to asynchronous, the development trend of navigation applications in the VE was also reviewed. The contrast between high level commands and low-level commands is introduced as the main line to review the two major applications of BCI navigation in real environments: mobile robots and unmanned aerial vehicles (UAVs). Finally, applications of BCI navigation to scenarios outside the laboratory;research challenges, including human factors in navigation application interaction design;and the feasibility of hybrid BCI for BCI navigation are discussed in detail.

The Reproduction of Chinese Painting in the Digital Age

This paper investigates the reproduction of Chinese painting in the digital age. In particular, how does a website asan interface influence viewers’ response to a Chinese handscroll? The paper begins with a critical description of aweb interface of Freer Gallery of Art and Arthur M. Sackler Gallery, followed by an analysis of the originalpainting. Fishermen on an Autumn River, that the interface digitizes and displays. The last section points out theinfluence of digitization on the relationship between viewers and digital heritage.

A NEW APPROACH TO THE DESIGN OF A SYSTEM FOR FEATURE EXTRACTION BASED ON HUMAN-COMPUTER COLLABORATIVE TACTIC

We are involved in an embarrassing situation that the limited capability of automated feature extraction in digital photogrammetric systems cannot satisfy the increasing needs for rapid acquisition of semantic information for applications. Facing this challenge, a new tactic, Human-Computer Collaborative (HCC) tactic, and a corresponding new method, Operator-Object Directed (OOD) method, are proposed for the design of a system for feature extraction from large scale aerial images. We hold that in almost all technical complex systems, full automation will be neither technically feasible nor socially acceptable. The system should be designed to optimize through the cooperative operation with two agents in the system: the hurtan and the computer.

核电厂数字化人—机界面中信息显示的人因化设计

为了提高核电厂数字化人—机界面中的信息显示设计水平和人员绩效,文章首先介绍了人因化设计的过程。然后从数字化主控室操纵员的认知和操作特性中找到了人因化设计的一般原理,包括:满足认知和操作需求的信息显示设计;满足任务绩效的信息显示设计;满足班组合作与交流的信息显示设计;综合考虑,防止信息过负荷、工作过负荷和情境意识丧失。最后提出依据一般的人因化设计原理建立具体的信息显示设计细则,来指导信息显示的人因化设计,为提升设计水平和质量提供支持。

从“版”到“窗”:数字出版阅读界面形象嬗变的符号学分析

印刷术的发明与普及使“版”成为出版物标准界面,历史前行、技术更迭,“窗”成为数字出版物的新界面。出版界面形象从“版”到“窗”,既展现了出版载体物显示端的变革,也关涉出版观念的变迁。相比传统界面“版”,“窗”产生了符形的变化,它可以被理解为一种虚位以待但呈现动势的空符号,是透明媒介环境与非透明信息系统,符号与媒介的关系仅为瞬时征用的弱依存关系。在符用层面,窗口界面语言呈现出图符语境化的趋势,人与屏幕的符号互动,身体与媒介双重延伸,并通达经验与文本两个世界,实现意义调度。

脑机接口技术应用背景下神经权利的证立与穿透式保护

神经技术使以认知自由权、精神隐私权、精神完整性权利和心理连续性权利为内容的神经权利得以彰显,作为数字人权的神经权利包含公法权利和私法权利的双重内容。然而,传统权利均无法充分涵摄神经权利,凸显规范与新兴技术之间的代际鸿沟。对此,应穿透数字社会与物理社会、不同法律部门之间的壁垒,塑造保护神经权利的领域法。在私法层面,通过合理解释一般人格权和类推适用具体人格权来保护神经权利,未来可以将神经权利纳入民法典中的人格权体系。在公法层面,政府应充分履行保护神经权利的国家义务,督促企业履行合规义务,规范公民合理使用神经技术产品。在刑法层面,串联数据犯罪、信息犯罪和人身犯罪,塑造保护神经权利的罪名体系。

陶粒对SC-SCC黏结界面劈裂破坏特性的影响

基于劈裂试验,研究了陶粒对蒸养混凝土(SC)-自密实混凝土(SCC)黏结界面力学特性的影响.结果表明:陶粒能提高SC-SCC黏结界面的劈裂抗拉强度,增加黏结界面的张开位移值,提升黏结界面的延性;黏结界面应力-应变曲线可分为线性发展阶段、塑性发展阶段和失效破坏阶段;双参数Weibull分布模型可较好地模拟黏结界面应力-应变曲线的上升段,当黏结界面的陶粒引入量低于4 kg/m2时,黏结界面损伤变量的演化进程被有效减缓.

面向电影行业的软件检测集成平台研发

本文介绍了中国电影科学技术研究所(中央宣传部电影技术质量检测所)检测实验室面向电影行业的软件检测工具集成平台研发过程,主要依据《点播影院暂行技术规范》和GD/J 029—2010《数字电影流动放映监管信息GPS/GPRS接口技术要求和测试方法(暂行)》进行相应数据接口检测工具的设计与实现,以及作为工具容器的检测平台的设计与实现,并最终在国产硬件和操作系统环境下完成对该检测平台的部署。该检测平台的建设具备良好的可操作性和可扩展性,能够为提高检测实验室软件检测能力和检测效率起到良好的技术支撑作用。

文本视觉密度与界面色调对老年人数字健康教育的影响研究

数字健康教育以丰富的内容和灵活的教育方式在提升百姓健康素养方面做出了巨大贡献,但由于老年群体认知能力和视觉水平的衰退,在接受数字教育时常面临信息难以识别、理解困难等问题。因此,以数字健康教育平台阅读界面为研究对象,分析了界面视觉设计对老年群体阅读效果和认知负荷的影响。研究中的自变量为文本视觉密度和界面色调,因变量为阅读绩效。2×2双因子实验结果表明:①低文本密度下的阅读理解效果优于标准密度;②冷色调的阅读理解效果优于暖色调;③文本视觉密度与界面色调在阅读时间上存在显著的交互作用。冷色调在标准密度下的阅读用时更少,而暖色调在低密度下的阅读用时更少。研究从健康教育内容传播的视角进行界面设计分析,丰富了老年数字阅读体验数据,探讨了文本视觉密度和色调在界面中的效果与交叉关系,为提升老年人数字教育效能提供了具体设计建议。