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相关概念视频

Design Example01:23

Design Example

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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Design Example: Resistive Touchscreen01:14

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
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Properties of the z-Transform I01:17

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The z-transform is a fundamental tool in digital signal processing, enabling the analysis of discrete-time systems through its various properties. It is an invaluable tool for analyzing discrete-time systems, offering a range of properties that simplify complex signal manipulations. One fundamental property is linearity. For any two discrete-time signals, the z-transform of their linear combination equals the same linear combination of their individual z-transforms. This property is essential...
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Structure-Activity Relationships and Drug Design01:28

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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触摸或点击友好:面向复杂应用程序的适应性用户界面.

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概括
此摘要是机器生成的。

这项研究比较了微软Word任务的触摸屏,鼠标和触摸板. 结果显示,鼠标和触摸屏提供了明显的效率优势,建议为复杂的应用程序定制菜单.

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科学领域:

  • 人与计算机的交互
  • 可用性工程可用性工程
  • 软件工程学 软件工程学

背景情况:

  • 对复杂的软件来说,评估不同输入设备的用户界面 (UI) 效率至关重要.
  • 微软Word作为复杂应用程序可用性研究的基准.
  • ISO-9241-11标准提供了一个通过效率,有效性和满意度来评估可用性的框架.

研究的目的:

  • 为了比较直接 (触摸屏) 与间接 (鼠标,触摸板) 操纵设备在微软Word任务中的可用性.
  • 确定特定任务的效率,并为复杂的应用程序UI提出改进建议.
  • 提出一个定制的任务菜单,根据设备功能优化交互.

主要方法:

  • 54名参与者根据微软Word专业知识分组,使用鼠标,触摸板和触摸屏执行了56个任务.
  • 可用性是根据ISO-9241-11.11的效率,有效性和满意度指标进行评估的.
  • 使用单向ANOVA和ANCOVA来分析任务级效率和有效性.

主要成果:

  • 触摸屏在有效性方面仅在一个特定的任务中胜过其他设备.
  • 19个任务 (34%) 用小鼠显著提高了效率.
  • 21个任务 (37.5%) 在触摸屏下显著提高效率.

结论:

  • 无论是鼠标还是触摸屏,对于所有Microsoft Word任务都不是普遍优越的.
  • 定制菜单,分离触摸友好型和鼠标友好型操作,推用于类似MS Word的应用程序.
  • 根据输入设备的优势优化UI设计可以提高用户的效率和满意度.