A factor combination approach to developing style guides for mobile phone user interface

This paper proposes a systematic approach to developing comprehensive guidelines for mobile phone user interface, and presents a case study to validate the approach. The approach applies a systematic combination of three critical factors: general usability principles, UI components and guideline properties to developing guidelines. In the case study, this factor combination approach was very effective in collecting experts’ ideas, creating guidelines and editing them. The resulting style guide can provide comprehensive and useful guidelines for designing mobile phone UI.

Relevance to Industry

UI designers can use the results of the study as a practical method to develop style guides for mobile phone UIs. The approach taken in the study will also be helpful in managing complex guideline information systematically.     

Coupling image processing and stress analysis for damage identification in a human premolar tooth

Non-carious cervical lesions are characterized by the loss of dental hard tissue at the cement-enamel junction (CEJ). Exceeding stresses are therefore generated in the cervical region of the tooth that cause disruption of the bonds between the hydroxyapatite crystals, leading to crack formation and eventual loss of enamel and the underlying dentine.Damage identification was performed by image analysis techniques and allowed to quantitatively assess changes in teeth. A computerized two-step procedure was generated and applied to the first left maxillary human premolar. In the first step, dental images were digitally processed by a segmentation method in order to identify the damage. The considered morphological properties were the enamel thickness and total area, the number of fragments in which the enamel is chipped. The information retrieved by the data processing of the section images allowed to orient the stress investigation toward selected portions of the tooth. In the second step, a three-dimensional finite element model based on CT images of both the tooth and the periodontal ligament was employed to compare the changes occurring in the stress distributions in normal occlusion and malocclusion. The stress states were analyzed exclusively in the critical zones designated in the first step.The risk of failure at the CEJ and of crack initiation at the dentin-enamel junction through the quantification of first and third principal stresses, von Mises stress, and normal and tangential stresses, were also estimated.     

求解VLSI 电路划分问题的混合粒子群优化算法

电路划分是VLSI物理设计过程中的一个关键阶段.该问题本质上是一个NP困难的组合优化问题.针对该问题,提出了一种带FM策略的混合粒子群优化算法.引入遗传算法的两点交叉算子和随机两点交换变异算子,保证了粒子在位置更新后依然可行;为了提高算法的局部搜索能力,将具有较强局部搜索能力的FM策略融入算法的位置更新;设计了种群多样性变异策略,提高了种群多样性,避免了易陷入局部最优的缺陷.对ISCAS89标准测试电路的仿真实验结果表明,所构造的算法是有效的.     

基于Qt/Embedded的数码一体机图形界面设计与实现

以数码一体机用户图形操作界面设计与实现为例,阐述了嵌入式Linux下Qt/Embedded的移植.设计、开发并移植了符合要求的GUI应用程序,介绍了在嵌入式Qt/Embedded中如何解决中文显示的问题,同时对系统的设计和实现做了详细说明.     

基于IOC的GUI框架设计与实现

传统的图形用户界面GUI(Graphics User Interface)设计中,存在过度耦合、组件与事件之间的映射关系混乱等问题.对此,提出了基于控制反转( IOC)的GUI框架,该框架采用Java反射机制,解析xml配置文件完成组件实例化、组件添加事件监听.实验表明,利用该框架建立的GUI实现了业务对象的松散耦合,组件和事件处理方法分离,缩短开发周期,具有较高的可扩展性.     

图像中对数螺旋线的拟合

针对图像中存在的对数螺旋线形状,提出了一种有效的对数螺旋线拟合方法。首先根据螺旋线的性质将已知图像中螺旋线的中心点约束在一个较小的区域内进行搜索,然后将从图像中获取的直角坐标系下的数据点通过坐标变换转换为能用直线形式表示的数据点,将对对数螺旋线的拟合转换为对直线的拟合。这一方法能快速、准确地拟合出图像中存在的对数螺旋线。     

基于ARM9的便携脑血氧监测仪及其以太接口设计

介绍了一种应用双光源的便携嵌入式近红外脑血氧监测设备.该设备采用三星S3C2410A微控制器和以太网控制芯片DM9000A进行软硬件设计,可实现同时对双侧脑组织局部血、氧参数的监测.     

大型煤化工甲醇精馏过程仿真系统的研究

研究构建大型煤化工甲醇精馏过程仿真平台问题.大型煤化工甲醇精馏过程操作复杂,为了能够更好地分析和预测该过程,本文开发了基于工艺过程机理模型的仿真系统.仿真系统的底层是流程模拟文件,提供过程机理模型和计算平台;顶层是仿真界面,提供人机交互窗口;二者通过Visual Basic接口程序链接.此仿真系统可以为实际的精馏操作提...     

破碎刚体三角网格模型的断裂面分割

针对基于断裂面匹配的破碎刚体复原,提出了一种分割断裂面的方法。首先,根据相邻三角片法矢的夹角,将碎块外表面以棱边为界限分割成多张曲面;然后,根据曲面法矢的扰动大小和扰动图像,经过二次分割,将曲面区分为原始面和断裂面。实验结果表明,所提方法能够正确快速地提取出形状较复杂碎块的断裂面。     

基于VC++的超小型水下机器人上位机人机交互界面设计

随着水下机器人技术的不断推进,超小型浅水潜水器受到了广泛的关注。上海大学设计了基于活塞式沉浮系统的超小型水下机器人,其控制系统由上位机、人机交互界面以及下位机构成。论文中在VC++开发环境中设计出了融入视频捕捉的人机交互界面,实验结果显示该界面完全可以实现对水下机器人的控制以及对水下环境的观察。