Security Threads and IoT Security

One of the technologies that have attracted the most attention recently across a variety of applications is the Internet of Things (IoT). The Internet of Things (IoT) is the combination of sensor, embedded computing, and communication technologies. The goal of the Internet of Things is to provide seamless services to anything, everywhere, at any time. The internet of things (IoT) technologies plays a vital role everywhere after the internet and information and communication technology, ushering in the fourth disruptive technology revolution (ICT). For real-time processing, communication, and monitoring, the smart items are linked together through wired or wireless connections. Implementing the IoT system presents security and privacy challenges since IoT devices are incompatible with current security standards based on tradition. This paper discusses IoT security strands, mitigation strategies, and privacy issues. This study’s major objective is to get more knowledge about security threats, mitigation techniques, and privacy concerns in IoT devices. The authors also mentioned a few cutting-edge technologies that can address general security problems. This study’s major objectives are to find research gaps in IoT security and match solution paradigms. The advent and rapid growth of the Internet of Things (IoT), which offers innumerable benefits, facilities, and applications including smart grids, smart homes, smart cities, and intelligent transportation systems (ITS), have an impact on everyone’s life. However, the deployment and use of sensing devices exposes IoT-based systems and applications to many security flaws and attacks. Furthermore, the lack of standardization brought on by the diversity of devices and technologies makes integrating security in the IoT a severe problem. The purpose of this review paper is to highlight the numerous security threats, challenges, and attacks that IoT-enabled applications face.

An Experimental Study on Using Laser for Cleaning Metal Threads

Samples of metal threads were prepared, underwent artificial aging, and cleaned using laser applications to define the efficiency of cleaning that gives the best results without affecting the components of the thread, including metal, fibers, or dyes. The present study aimed to investigate and evaluate laser cleaning of the corroded metal embroidery, revealing the chemical composition of the corrosion and prop and evaluating the effects of laser cleaning on the surface of the metal threads. It utilized SEM and LM to provide morphological information about the surface and the cleaning effect. Moreover, SEM-EDX was used to define the elemental composition, and XRD was employed to offer information on the metal. The restoration of cultural heritage depends on defining the devastating changes to the man-made pieces. It compares pre-and post-restoration conditions of the object (e.g. painting, photography, and material analysis), controlling the conditions that are almost irrevocable. An Interval Digital Macro-photography is employed to control the corrosion PS tests for a long period of museum exhibition [1].

Is the immediate use of guided bone regeneration on exposed dental implant threads beneficial?

Thin buccal bone has a risk of thread exposure, and placement of a graft is the mainline of treatment for thread exposure. However, this process takes time as the patient is expected to wait for healing to occur before the implant can be placed. To overcome the waiting period, this study views a different method. This study examines the use of guided bone regeneration on the day of implant placement on buccal bone where thread exposure occurs. This process has the advantage of avoiding the patient to go through multiple operations till receiving the final prosthetic treatment, also saving time and money for both the patient and the practitioner.

Expressions of the radius and the surface tension of surface of tension in terms of the pressure distribution for nanoscale liquid threads

The expressions of the radius and the surface tension of surface of tension Rs and γs in terms of the pressure distribution for nanoscale liquid threads are of great importance for molecular dynamics （MD） simulations of the interfacial phenomena of nanoscale fluids; these two basic expressions are derived in this paper. Although these expressions were derived first in the literature[Kim B G, Lee J S, Han M H, and Park S, 2006 Nanoscale and Microscale Thermophysical Engineering, 10, 283] and used widely thereafter, the derivation is wrong both in logical structure and physical thought. In view of the importance of these basic expressions, the logic and physical mistakes appearing in that derivation are pointed out.

Formal Modeling and Analysis of AADL Threads in Real Time Maude

This paper presents, without altering the AADL meta-model, a formal description of static and behavioral aspects of the AADL thread component. This active and concurrent applicative component of AADL poses many challenges to its formalization and analysis including instantaneous and/or delayed communications, concurrent tasks and time-dependent features, and the need to analyze correctness. This formalization, based on real-time object-oriented theories, allows not only a precise description of the semantics of threads composition with respect to their timing requirements but also makes possible the formal verification of behavioral properties.

Comprehensive Survey of the Landscape of Digital Twin Technologies and Their Diverse Applications

The concept of the digital twin,also known colloquially as the DT,is a fundamental principle within Industry 4.0 framework.In recent years,the concept of digital siblings has generated considerable academic and practical interest.However,academia and industry have used a variety of interpretations,and the scientific literature lacks a unified and consistent definition of this term.The purpose of this study is to systematically examine the definitional landscape of the digital twin concept as outlined in scholarly literature,beginning with its origins in the aerospace domain and extending to its contemporary interpretations in the manufacturing industry.Notably,this investigationwill focus on the research conducted on Industry 4.0 and smartmanufacturing,elucidating the diverse applications of digital twins in fields including aerospace,intelligentmanufacturing,intelligent transportation,and intelligent cities,among others.

Roller Screw and Threaded Chain Speed Reducer: An Experimental Evaluation

We are developing a speed reducer that can be considered a transformation of a worm gear reducer: the worm is replaced by an inverted roller screw, and the gear is replaced by a threaded chain drive. This configuration lessens wear, increases load capacity, and improves efficiency. The threaded chain consists of nut-shaped links. This paper presents the results of tests carried out on a prototype with a reduction ratio of 46.

Threads of Youth Needlework Helps Woman Recall the Past

MAYBE I should be grateful to my mother. When I was very young, she taught me how to knit socks. Using a kind of white nylon thread and a needle made from a kind of hairpin, a durable sock could be made. Before long I had mastered the skill, then knit a pair of socks for each of my family members. However, my mother seemed to be a collector of socks and didn’t allow me to stop knitting them until I came to hate this task. Luckily, my mother changed her interest. One day while she

Weaving New Clothes from Cast-off Threads

ZHANG Yongmei is turning thethreads of her life around and isweaving success from an all toocommon sob-story.Laid off ten yearsago,Zhang Yongmei is now a well-known name in certain circles ofBeijing,both for the work she does andthe help she brings to those who haveshared a similar fate.Her secret weapon?—pet fashion for the export market andplenty of perseverance.As manager

基于BL602的RT Thread移植方法研究

RT Thread是一款嵌入式实时操作系统,因其易于移植、可裁剪性好等特点备受广大嵌入式开发者的喜爱。BL602芯片内含一个32位的RISC V架构的微处理器,兼具高性能、超低功耗等特点。但目前关于将RT Thread实时操作系统移植到BL602芯片上还没有成熟的方案,针对这一现象,给出了将RT Thread移植到BL602上的详细方案。通过剪裁源码、修改配置文件、修改系统时钟、添加串口输出、采用轮询或中断回调实现串口输入等操作进行移植。实验结果表明,移植到BL602上的RT Thread操作系统可以正常运行,并且具备任务管理、任务调度等功能。本文提出的移植方案不仅可以降低BL602的开发难度、提高CPU的利用率,而且为其他RTOS移植提供了参考。

Summary and clinical application of Zhuang medicine medicated thread moxibustion

Zhuang medicine medicated thread moxibustion is a kind of external therapy with ethnic medicine characteristics that spreads in Guangxi Zhuang region.It has a wide range of clinical application and significant curative effect,and can be used to treat diseases such as internal medicine,surgery,dermatology,gynecology,pediatrics,and five sense organs.Through reviewing and combing the literature on the Zhuang medicine medicated thread moxibustion in recent years,this paper summarizes and prospects its clinical application,with a view to further explaining the basic principles and application rules of Zhuang medicine medicated thread moxibustion and digging its clinical value.

The dynamic response of a high-density polyethylene slow-release structure under launching overload

Based on the 60 mm artillery grenade,a slow-release structure was designed to reduce the severity of ammunitions response to accidental thermal stimulation and improve the thermal stability of ammunitions.The slow-release structure was made of high-density polyethylene(HDPE) and connected the fuse and the projectile body through internal and external threads.To study the safety of the slowrelease structure under artillery launching overload,mechanical analysis of the slow-release structure was simulated via finite element analysis(FEA).The impacts of various factors(e.g.,fuse mass,number of threads,and nominal diameter of internal threads of the slow-release structure) on the connection strength of the slow-release structure were studied.A strength-prediction model based on the fuse mass and internal thread parameters was established by fitting the maximum effective stress of the slowrelease structure.This led to good prediction results.In conclusion,this study provides references and theoretical support for the design of thermal protection structures insensitive to ammunition.

Evolution of microstructure, stress and dislocation of AlN thick film on nanopatterned sapphire substrates by hydride vapor phase epitaxy

A crack-free AlN film with 4.5 μm thickness was grown on a 2-inch hole-type nano-patterned sapphire substrates(NPSSs) by hydride vapor phase epitaxy(HVPE). The coalescence, stress evolution, and dislocation annihilation mechanisms in the AlN layer have been investigated. The large voids located on the pattern region were caused by the undesirable parasitic crystallites grown on the sidewalls of the nano-pattern in the early growth stage. The coalescence of the c-plane AlN was hindered by these three-fold crystallites and the special triangle void appeared. The cross-sectional Raman line scan was used to characterize the change of stress with film thickness, which corresponds to the characteristics of different growth stages of AlN. Threading dislocations(TDs) mainly originate from the boundary between misaligned crystallites and the c-plane AlN and the coalescence of two adjacent c-plane AlN crystals, rather than the interface between sapphire and AlN.

实时数据服务器软件设计

介绍了实时数据服务器的特点和设计过程,分析了其中的若干关键技术:多线程、oracle调用接口OCI(OracleCallInterface),Socket和select函数的优点。通信协议采用基于有连接的TCP/IP通信协议,软件设计采用阻塞的通信模式和OCI连接数据库,利用select函数定时中断阻塞,进行错误冗余处理。经现场实际测试,该设计方式能够满足全网发电机功角监测的实时数据处理要求。

Causal Circular Narrative and Time-Space Construction of the Movie Little Big Woman

Chinese film Little Big Woman takes the father’s funeral as the main line to tell the story of family affection and real-life emotional entanglements.In the narrative with multiple clues,we go back to find the hidden reasons,and the gradually clear reflection of the past is related to the real situation of the characters.Causal cycle narrative is not only a narrative strategy,but also a narrative logic with deep Chinese traditional cultural and philosophical connotations.

TBB多核编程及其混合编程模型的研究

多核处理器越来越普及,如何通过软件技术最大提升CPU每个核心的使用率,成为热点问题。引入多核并行编程模型Threading Building Blocks,并与raw threads、Open MP进行各方面详细比较,分析了其优劣。并研究了TBB结合MPI在SMP集群系统上实现高效的混合并行计算应用的方法。最终发现TBB在多核编程方面有显著的优势。TTB和MPI的结合,又为多核处理器结点集群提供了并行层次化结构,大大优化集群的性能。

瑞萨电子推出首款支持新Matter协议的Wi-Fi开发套件

作为物联网技术的卓越开发商,瑞萨将在未来所有Wi-Fi、BLE和Thread产品中支持Matter协议全球半导体解决方案供应商瑞萨电子(TSE:6723)今日宣布,推出首款支持新Matter协议的开发套件,同时宣布将在未来所有Wi-Fi、低功耗蓝牙?(BLE),和IEEE 802.15.4(Thread)方案中,以及最近收购的Dialog Semiconductor和Celeno Communications产品上,提供对Matter的支持。

一种物联网能耗监测计量终端的设计

设计了一种应用于物联网能耗监测系统的无线计量终端方案,该计量终端的核心电路由微控制器STM8L152和电能计量单元ATT7053构成,无线收发器使用CC1101,使用软件Atom Threads作为操作系统,并移植TI的Simplici TI无线网络协议,可以实时计量用电设备的用电量、液晶显示电压、电流、功率等电参数,定时保存数据并通过433MHz无线通信上报给数据网关和服务器.计量终端也支持现场红外通信抄表.

Clinical Research on Treatment of Migraine with Combination of Characteristic and Superior Techniques of Zhuang Medicine

Objective:To study the application effect of the combination of special advantages of Zhuang medical technology for migraine patients.Methods:80 patients with migraine were selected and all were admitted to Mingxiu Branch of International Zhuang Hospital Affiliated to Guangxi University of Traditional Chinese Medicine from February 2019 to February 2020.Random number table method was used to divide patients into two groups,with 40 patients in each group.Among them,the patients in the study group were treated with the therapy combining characteristics of Zhuang medicine and superior technology,that is,Zhuang medicine meridian tendon therapy+Zhuang medicine lotus needle cupping blood stasis removal therapy+Zhuang medicine thread moxibustion therapy+Zhuang medicine acupuncture therapy;the patients in the control group were treated with conventional Western medicine.The efficacy of the two treatments were compared.Results:After treatment,the total effective rate of clinical treatment in the study group was higher than that in the control group(P<0.05),and the visual analogue scale(VAS)score and integral improvement rate were higher than those in the control group(P<0.05).The onset time of action was statistically shorter than that of the control group(P<0.05).There was a statistically significant difference in the adverse reaction rate between the two groups(P<0.05).Conclusion:The combination of Zhuang medicine’s characteristic and superior techniques for patients with migraine has a significant curative effect.