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桌面视频会议ProShare订出新标准

个人电脑 1996年第2期2卷 144-145页

作者： o.ryantabibian 吴德敏

在网络中,“专用”这个词是相当不受欢迎的,尤其在视频会议领域更是如此——Intel似乎也这么认为。新型Intel ProShare Video System 200,1.8版(每座位2499美元)符合H.320视频会议标准,并能同许多其他厂商的产品通信,测试中我们发现H.32... 详细信息

在网络中,“专用”这个词是相当不受欢迎的,尤其在视频会议领域更是如此——Intel似乎也这么认为。新型Intel ProShare Video System 200,1.8版(每座位2499美元)符合H.320视频会议标准,并能同许多其他厂商的产品通信,测试中我们发现H.320支持虽然并非紧密集成至系统中,但做得非常好。 ProShare 200提供了将PC转换成ISDN或LAN上的视频会议节点所需的全部硬件,其中包括视频捕捉板、ISDN适配器、视频摄像机和一套耳机及话筒组合。Intel没有提供LAN适配器,所以需另外购买一台适配器。

关键词：视频质量会议美元座位程序本位币网络地址客户机 ISDN 文件类型 CPU

Stability analysis of a time-delayed Van der Pol–Helmholtz–Duffing oscillator in fractal space with a non-perturbative approach

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Communications in Theoretical Physics 2024年第4期76卷 22-31页

作者： Yusry o El-Dib Department of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt

The time-delayed fractal Van der Pol–Helmholtz–Duffing(VPHD)oscillator is the subject of this paper,which explores its mechanisms and highlights its stability *** time-delayed technologies are currently garnering significant attention,the focus of this research remains crucially relevant.A non-perturbative approach is employed to refine and set the stage for the system under *** innovative methodologies introduced yield an equivalent linear differential equation,mirroring the inherent nonlinearities of the ***,the incorporation of quadratic nonlinearity into the frequency formula represents a cutting-edge *** analytical solution's validity is corroborated using a numerical *** conditions are ascertained through the residual Galerkin ***,it is observed that the delay parameter,in the context of the fractal system,reverses its stabilizing influence,impacting both the amplitude of delayed velocity and the *** analytical solution's precision is underscored by its close alignment with numerical ***,the study reveals that fractal characteristics emulate damping *** its applicability across diverse nonlinear dynamical systems,this non-perturbative approach emerges as a promising avenue for future research.

关键词： Van der Pol-Helmholtz-Duffing oscillator fractal space time-delay non-perturbative approach stability analysis El-Dib's frequency formula

Valorization of Tree Bark-Derived Suberin in Applications for the Bio-Based Composites Industry–A Recent Review

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Journal of Renewable Materials 2024年第6期12卷 1029-1042页

作者： Aleksandra Jeżo Institute of Wood Sciences and Furniture SGGWNowoursynowska St.159Warsaw02-776Poland

Bark extracts are sustainable sources of biopolymers and hold great promise for replacing fossil fuel-based polymers,for example,in wood-based *** addition to primary and secondary metabolites,tree bark also contains suberin,which plays a major role in protecting the tree from environmental *** is a natural aliphatic-aromatic cross-linked polyester present in the cell walls of both normal and damaged external tissues,the main component of which are long-chain aliphatic *** main role as a plant ingredient is to protect against microbiological factors and water *** of the most important suberin monomers are suberin fatty acids,known for their hydrophobic and barrier ***,due to the diverse chemical composition of suberin,it is an attractive alternative to hydrocarbon-based *** its potential is recognized,it is not widely used in biocomposites technology,including wood-based composites and the polymer *** article will discuss the current knowledge about the potential of suberin and its components in biocomposites technology,which will include surface finishes,composite adhesives and polymer blends.

关键词： Suberin suberinic acids wood composites biocomposites biopolyester

基于服务器的路由器用MPR在WAN上开辟新途径

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个人电脑 1996年第2期2卷 146-页

作者： o.ryantabibian 程世玉

当构造广域网时,基于软件的路由器一般被认为不能胜任该项工作。因为这种路由器功能有限,和Cisco和3Com制造的传统路由器相比,其容错水平和可靠性都没有前者高。不过Novell的MultiProtocol Router(MPR)Version 3.0会改变这种状况。Novel... 详细信息

当构造广域网时,基于软件的路由器一般被认为不能胜任该项工作。因为这种路由器功能有限,和Cisco和3Com制造的传统路由器相比,其容错水平和可靠性都没有前者高。不过Novell的MultiProtocol Router(MPR)Version 3.0会改变这种状况。Novell在该MPR中加入一些重要的特性,使其成为一个标准的路由器,能适应任何环境,和传统路由器相比。

关键词：路由器功能 oSPF 包过滤 MPR WAN

HavenTree公司的Nodemap网络绘图工具性能怎样?

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个人电脑 1994年第1期 146-146页

作者： o.ryantabibian 吕晓强

理论上,Haven Tree公司的Nodemap2.0版可以提供NetWare管理员自爱的精确的网络图。网络图可以帮助调整网络的发展或帮助解决网络上的问题。然而,现实却不是这么回事。虽然此软件具有少见的低价格和自动绘制网络图的功能,但是Nodemap缺... 详细信息

理论上,Haven Tree公司的Nodemap2.0版可以提供NetWare管理员自爱的精确的网络图。网络图可以帮助调整网络的发展或帮助解决网络上的问题。然而,现实却不是这么回事。虽然此软件具有少见的低价格和自动绘制网络图的功能,但是Nodemap缺少特色并且使用困难。 Nodemap是一种基于DoS的网络图示工具,可以自动地找山任何连到Netware网络上的设备。Nodemap利用网络上每个设备唯一的介质访问控制地址来实现这一功能。一旦查找完成。

关键词：绘图工具 HavenTree Nodemap 自动绘制网络设备介质访问控制图形格式图形包手工绘制 Visio

支持MIME和MAPI的电子邮件包:Mail-IT

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个人电脑 1994年第1期 136-136页

作者： o.ryantabibian 吕晓强

像Microsoft Mail这样的电子邮件包非常适合通过局域网传输信息,但是它们不能通过Internet发送数据。Unipalm公司的Mail-It 2.01版是第一个既支持多用途Internet邮件交换(MIME),又支持Microsoft Windows信息处理应用编程接口(MAPI) 的... 详细信息

像Microsoft Mail这样的电子邮件包非常适合通过局域网传输信息,但是它们不能通过Internet发送数据。Unipalm公司的Mail-It 2.01版是第一个既支持多用途Internet邮件交换(MIME),又支持Microsoft Windows信息处理应用编程接口(MAPI) 的电子邮件包。它提供了一种方便的、功能完全的访问Internet邮件的手段。此程序需要一条昂贵的Internet的专用连接线来连接远地服务器,但使用它远比使用电子邮件网关更有效、更可靠。一些应用程序。

关键词： MAPI MIME Mail-IT 局域网传输应用编程接口应用程序邮局协议 SMTP 本地服务器应用软件

Making topological protein links using enzymatic reactions

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National Science Review 2024年第3期11卷 50-51页

作者： Roger Castells-Graells Todd o.Yeates Department of Chemistry and Biochemistry University of California UCLA-DoE Institute for Genomics and Proteomics

Proteins are exceedingly complex molecules though, at their heart, they are essentially linear polymers. Pull at their ends and one obtains an extended backbone. While that is true in most cases, some natural proteins... 详细信息

关键词： DESIGN

A synthetic microbial community used as a bioinoculant can overcome rice production constraints in acid soils

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Science China(Life Sciences) 2024年第5期67卷 1085-1086页

作者： Maureen o’Callaghan Shengjing Shi Resilient Agriculture Group AgResearchLincolnChristcurch 8140New Zealand

A customised synthetic microbial community(SynCom)composed of carefully selected rhizosphere-competent bacterial strains improved rice growth,yield and resistance to soil acidity and Al toxicity.

关键词： soil soils rhizosphere

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Harnessing the power of pericytes and hypoxia-inducible factor-1 to modulate stroke outcome

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Neural Regeneration Research 2024年第3期19卷 473-474页

作者： omolara o.ogunshola Chih-Chieh Tsao Institute of Veterinary Physiology Vetsuisse FacultyUniversity of ZurichZurichSwitzerland

The human brain has exceedingly high metabolic *** cerebral vasculature has the critical task of providing sufficient blood supply to meet this *** sudden interruption of blood flow to the brain,as observed during ischemic stroke,results in acute neurological injury with devastating consequences-a high rate of adult disability and *** stroke is thus a vascular disorder with a dramatic neurological *** is an urgent need for more effective disease management to combat stroke as current treatment paradigms,focusing on vascular recanalization and neuroprotection,have only limited clinical *** accumulating data suggests successful long-term neuroprotection is unlikely to be achievable without a functional microvascular network,strategies that reduce endothelial dysfunction could be ***,very recent evidence highlighted herein suggests protecting the humble pericyte may be a new approach to reaching this goal.

关键词： consequences exceeding herein