-
Article
Open AccessPrediction of Oral Intake at Discharge with Early Assessment of Swallowing Function within 24 h after Admission: A Retrospective Cohort Study
Dysphagia is one of the most common symptoms of stroke and can lead to other complications such as pneumonia, dehydration, and malnutrition. This retrospective cohort study evaluated the predictive value of a ...
-
Chapter and Conference Paper
Behavior Control of Drone Triggered by Object Detection
Artificial Intelligence (AI) technologies are being developed in various fields; however, we face the shortage of AI specialists. Talented person in the learning of AI, it is important to understand not only A...
-
Chapter and Conference Paper
Tooth Profile Calculation of a Cylindrical Gear Pair to Achieve a Non-constant Ratio
Mechanical vibration and acoustic noise of gear mechanism due to fabrication and elastic deformation is prevented by purposely given fluctuation of meshing contact cycle. The authors came up with the idea that...
-
Chapter and Conference Paper
Evolution of Gear Machining Technology in a Japanese Manufacturer – Realization of Skiving Method as an Application of 5-Axes Machining Center -
Manufacturing of gears, core components of power transmission systems for automobiles, always needs technological innovation because it should achieve high-speed, mass production and precision machining simult...
-
Chapter and Conference Paper
Determination of Tooth Profile Curve of Helical Pinion and Rack Gears to Achieve Non-constant Transmission Ratio
This paper discusses a determination scheme of spatial tooth profile curvatures of helical pinion and rack gears to achieve a desired non-constant transmission ratio, called variable rack and pinion. In the schem...
-
Chapter and Conference Paper
Determination of Tooth Profile Curves of Variable Rack and Pinion Gears
Variable rack and pinion gears are one of the mechanical transmission systems with non-constant speed ratio. The design methodology for variable rack and pinion gears tooth profile based on the gear meshing th...
-
Article
Synthesis of polyarylates and aliphatic polyesters by divalent acyl-1,2,4-triazole: a route to metal-free synthesis at low temperature
Aromatic, semiaromatic, and aliphatic polyesters were synthesized at moderate temperatures (25–80 °C) by the polymerization of divalent acyl-1,2,4-triazoles using 4-(dimethylamino)pyridine as a catalyst. The m...
-
Chapter and Conference Paper
Static Analysis and Design of Extendable Mechanism Inspired by Origami Structure Based on Non-overconstrained Kinematically Equivalent Mechanism
When a deployable origami structure is kinematically modelled as a link mechanism by replacing the creases by revolute joints, the obtained mechanism is generally overconstrained. In practice, devices and mach...
-
Chapter and Conference Paper
An Extendable Continuum Robot Arm to Deal with a Confined Space Having Discontinuous Contact Area
This paper proposes a concept for constructing a flexible extendable arm by feeding a number of intermediate moving plates along a flexible feed screw and deploying each of them at a certain contactable area. ...
-
Chapter and Conference Paper
A Suspended Cable-Driven Parallel Robot for Human-Cooperative Object Transportation
This paper describes the development of the suspended cable-driven parallel robot for object transportation having power assist function. The robot consists of the winches to drive four cables which suspend th...
-
Chapter and Conference Paper
A Novel, Scalable Shape Memory Alloy Actuator Controlled by Fluid Temperature
This paper presents the basic performance evaluation of a design concept for linear scalable Shape Memory Alloy (SMA) wire actuators controlled by the temperature of a liquid. Fluid heat transmission with SMA ...
-
Article
Open AccessHigh-current density and high-asymmetry MIIM diode based on oxygen-non-stoichiometry controlled homointerface structure for optical rectenna
Optical rectennas are expected to be applied as power sources for energy harvesting because they can convert a wide range of electromagnetic waves, from visible light to infrared. The critical element in these...
-
Chapter and Conference Paper
Stiffness Analysis of Delta Parallel Robots Combining the Virtual Joint Method with an FEA Stiffness Model
In this paper a stiffness analysis approach for Delta parallel robots is presented, which combines the Virtual Joint Method (VJM) with a Finite Element Analysis (FEA) stiffness model of the proximal link. By c...
-
Chapter and Conference Paper
A Novel SMA Driven Compliant Rotary Actuator Based on Double Helical Structure
This paper proposed the new SMA driven compliant rotary actuator, which is able to perform both passive and self-actuated motions. This kind of actuator can be used as redundant actuation part in parallel robo...
-
Chapter and Conference Paper
Modeling and Characterization of the Double Helical Compliant Joint
In this paper, the modeling of a double helical compliant joint and its characterization are introduced. The Double Helical Compliant Joint (DHCJ) was designed to increase the workspace in a compliant mechanis...
-
Chapter and Conference Paper
Wearable Working Assist Mechanism for Hemiplegics Capable of Changing Step Length and Walking Direction
In the present paper, a systematic method useful in the structural design and motion synthesis of motion assist exoskeleton. To this end, a method for analyzing complex human motions with multiple degrees of ...
-
Chapter and Conference Paper
Kinematic Design of Five-Bar Parallel Robot by Kinematically Defined Performance Index for Energy Consumption
Evaluating parallel robots’ performance is a key to achieve a better design and better understanding of their behavior in operation. In this study, a novel idea of local performance evaluation of robots taking...
-
Chapter and Conference Paper
Reproduction of Long-Period Ground Motion by Cable Driven Earthquake Simulator Based on Computed Torque Method
In order to reproduce seismic waves classified in long-period ground motion by disaster prevention education facility, an earthquake simulator based on a cable-driven parallel mechanism has been constructed. I...
-
Chapter and Conference Paper
A 7R Spatial Linkage for Ankle Rehabilitation with an Arbitrary Ankle Rotation Axis
In this paper, a 7R spatial linkage for ankle rehabilitation was proposed. Thanks to its kinematic geometry, the output joint, which is accommodated by the patient’s ankle, of the linkage can possess an arbitr...
-
Chapter and Conference Paper
Modeling and Displacement Analysis of Origami Spring Considering Collision and Deformation of Components
The Origami Spring is one of the convertible origamis and its macroscopic motion is often regarded as a single Degree-of-Freedom (DoF) motion while in theory, its DoF is three DoF mechanism. In this paper, a n...
