Dar‐Zen Chen
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View article: Design of Spring Static-Balanced Serial Manipulators for Reduced Spring Attachment Adjustments
Design of Spring Static-Balanced Serial Manipulators for Reduced Spring Attachment Adjustments Open
This paper presents a design of spring static-balanced manipulators for reduced spring attachment adjustments. Gravitational joint torque is balanced by spring torque to maintain static balance, but joint reaction force by gravity force an…
View article: R&D Innovation Patterns and Patent Application Strategy of Top-Selling Drugs: Insights from Patentometric
R&D Innovation Patterns and Patent Application Strategy of Top-Selling Drugs: Insights from Patentometric Open
This article discusses the closed or open innovation patterns adopted by top-selling drugs and their patent application strategy throughout the drug lifecycle. The research samples are 151 top-selling drugs that have ever annual revenue of…
View article: Design of motion capture system-aided lower limb exoskeleton
Design of motion capture system-aided lower limb exoskeleton Open
This paper develops a human lower limb exoskeleton device combining kinematics, vibration, biomechanics, and a machine vision motion capture system that can replicate the physiological structure of human lower limbs, accurately and automat…
View article: On the Internal Counter-Torque between Springs in Serially Connected Statically Balanced Manipulators
On the Internal Counter-Torque between Springs in Serially Connected Statically Balanced Manipulators Open
Serially connected statically balanced manipulators with springs have been used in many applications. However, a portion of the torques caused by springs countering each other lead to an imbalance in gravitational torques and, therefore, a…
View article: Spring efficiency assessment and efficient use of spring methods of statically balanced planar serial manipulators with revolute joints only
Spring efficiency assessment and efficient use of spring methods of statically balanced planar serial manipulators with revolute joints only Open
This paper proposes a spring efficiency assessment of a statically spring-balanced planar serial manipulator. The admissible spring configurations for the static balancing of planar serial manipulators without auxiliary links have been det…
View article: Assessing the Representativeness of Main Paths by Their Coverage
Assessing the Representativeness of Main Paths by Their Coverage Open
This study pointed out that some nodes of a citation network are irrelevant to the derived MPs. As such, a degree of representativeness of the MPs can be quantitatively measured by the MP’s coverage ratio. As to the nodes outside the cover…
View article: Do extraordinary science and technology scientists balance their publishing and patenting activities?
Do extraordinary science and technology scientists balance their publishing and patenting activities? Open
This study investigated whether 12 scientists who had received the National Medal of Science and the National Medal of Technology and Innovation balanced publishing and patenting activities. The results demonstrated that although the scien…
View article: Exploring Technology Evolution in the Solar Cell Field: An Aspect from Patent Analysis
Exploring Technology Evolution in the Solar Cell Field: An Aspect from Patent Analysis Open
The identification and tracking of technology trends in an industry is crucial for effective information management, as well as for companies to maintain their competitive edge in a changing technological environment. A novel method that c…
View article: BIBLIOMETRIC ANALYSIS OF ACUPUNCTURE RESEARCH FRONTS AND THEIR WORLDWIDE DISTRIBUTION OVER THREE DECADES
BIBLIOMETRIC ANALYSIS OF ACUPUNCTURE RESEARCH FRONTS AND THEIR WORLDWIDE DISTRIBUTION OVER THREE DECADES Open
Background: Considerable research has been conducted on acupuncture worldwide. This study chronologically
examined the changing features and research fronts of acupuncture and elucidated the differences among the six most
productive coun…
View article: Comparative Study of Trace Metrics between Bibliometrics and Patentometrics
Comparative Study of Trace Metrics between Bibliometrics and Patentometrics Open
Purpose To comprehensively evaluate the overall performance of a group or an individual in both bibliometrics and patentometrics. Design/methodology/approach Trace metrics were applied to the top 30 universities in the 2014 Academic Rankin…