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Accepted Manuscripts

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research-article  
Takao Kakizaki, Mai Endo, Jiro Urii and Mitsuru Endo
J. Comput. Inf. Sci. Eng   doi: 10.1115/1.4036991
The importance of physiotherapy is becoming more significant with the increasing number of countries with aging populations. Thus, the education of physiotherapists is a crucial concern in many countries. Information and communications technologies, such as motion capture systems, have been introduced to sophisticate the training methods used in physiotherapy. However, the methods employed in most training schools for physiotherapists and occupational therapists remain dependent on more conventional materials. These materials include conventional textbooks with samples of traditional gait motion photographs and video archives of patients’ walking motion. Actual on-site clinical training is also utilized in current physiotherapy education programs. The present paper addresses an application of a previously developed digital human model called the kinematic digital human (KDH) to physiotherapy education with a focus on improving students’ understanding of the gait motion of disabled patients. KDH models for use in physiotherapy were constructed based on Rancho Los Amigos National Rehabilitation Center terminology, which is considered the preferred standard among clinicians. The developed KDH models were employed to allow the three-dimensional visualization of the gait motion of a hemiplegic patient.
TOPICS: Kinematics, Visualization, Students, Education
research-article  
Joshua Q. Coburn, Ian Freeman and John Salmon
J. Comput. Inf. Sci. Eng   doi: 10.1115/1.4036921
In the past few years there have been some significant advances in consumer Virtual Reality (VR) devices. Devices such as the Oculus Rift, HTC Vive, Leap Motion Controller, and Microsoft Kinect are bringing immersive VR experiences into the homes of consumers with much lower cost and space requirements than previous generations of VR hardware. These new devices are also lowering the barrier to entry for VR engineering applications. Past research has suggested that there are significant opportunities for using VR during design tasks to improve results and reduce development time. This work reviews the latest generation of VR hardware and highlights past research projects studying VR in the design process. Additionally, this work suggests new use-cases that were prohibitively resource intensive to explore with previously available hardware. We conclude that these new devices have the potential to significantly improve portions of the design process.
TOPICS: Design, Virtual reality, Hardware, Control equipment, Engineering systems and industry applications
research-article  
Shumiao Wang, Siddharth Bhandari, Siva Chaitanya Chaduvula, Mikhail Atallah, Jitesh H. Panchal and Karthik Ramani
J. Comput. Inf. Sci. Eng   doi: 10.1115/1.4036615
The goal in this paper is to enable collaboration in the co-design of engineering artifacts when participants are reluctant to share their design-related confidential and proprietary information with other co-designers, even though such information is needed to analyze and validate the overall design. We demonstrate the viability of co-design by multiple entities who view the parameters of their contributions to the joint design to be confidential. In addition to satisfying this confidentiality requirement, an online co-design process must result in a design that is of the same quality as if full sharing of information had taken place between the co-designers. We present online co-design protocols that satisfy both requirements, and demonstrate their practicality using a simple example of co-design of an automotive suspension system and the tires. Our protocols do not use any cryptographic primitives -- they only use the kinds of mathematical operations that are currently used in single-designer situations. The participants in the online design protocols include the co-designers, and a cloud server that facilitates the process while learning nothing about the participants' confidential information or about the characteristics of the co-designed system. The only assumption made about this cloud server is that it does not collude with some participants against other participants.
TOPICS: Design, Engineering systems and industry applications, Collaboration, Suspension systems, Tires

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