104,061 research outputs found
Boseh Mobile Registration Workspace Design: Based On Time And Motion Study
The BOSEH is a bicycle rental system in public areas/bike-sharing in the city of Bandung which was established since July 2017. BOSEH is an acronym of the Bike On the Street Everybody Happy, literally meaning Word activities pedaling bikes (pedal). However, in its application, several problems occurred, such placement place semi-permanent registration in a sidewalk only provides 3 places of registration, placement of shelters did not fit with the design of the Master Plan, and system BOSEH that less than optimal socialization. The purpose of this design is to design the workspace means the registration BOSEH that can facilitate the communities to register. The method used in this design is a flow activity approach. Data is collected by observation, interviews, documentation, and analysis techniques using time and motion study. This technique focuses on the time and movement of the operator is doing a job. From the research, a draft registration BOSEH workspace had to be created can move from one place to another. The conclusions obtained from this research are designing a registration BOSEH workspace with efficiency and according to the ergonomics and Anthropometry of the human body.
Keywords Transportation, Bandung, Bike-sharin
Can a workspace help to overcome the query formulation problem in image retrieval?
We have proposed a novel image retrieval system that incorporates a workspace where users can organise their search results. A task-oriented and user-centred experiment has been devised involving design professionals and several types of realistic search tasks. We study the workspace’s effect on two aspects: task conceptualisation and query formulation. A traditional relevance feedback system serves as baseline. The results of this study show that the workspace is more useful with respect to both of the above aspects. The proposed approach leads to a more effective and enjoyable search experience
A study of the singularity locus in the joint space of planar parallel manipulators: special focus on cusps and nodes
Cusps and nodes on plane sections of the singularity locus in the joint space
of parallel manipulators play an important role in nonsingular assembly-mode
changing motions. This paper analyses in detail such points, both in the joint
space and in the workspace. It is shown that a cusp (resp. a node) defines a
point of tangency (resp. a crossing point) in the workspace between the
singular curves and the curves associated with the so-called characteristics
surfaces. The study is conducted on a planar 3-RPR manipulator for illustrative
purposes.Comment: 4th International Congress Design and Modeling of Mechanical Systems,
Sousse : Tunisia (2011
A design oriented study for 3R Orthogonal Manipulators With Geometric Simplifications
This paper proposes a method to calculate the largest Regular Dextrous
Workspace (RDW) of some types of three-revolute orthogonal manipulators that
have at least one of their DH parameters equal to zero. Then a new performance
index based on the RDW is introduced, the isocontours of this index are plotted
in the parameter space of the interesting types of manipulators and finally an
inspection of the domains of the parameter spaces is conducted in order to
identify the better manipulator architectures. The RDW is a part of the
workspace whose shape is regular (cube, cylinder) and the performances
(conditioning index) are bounded inside. The groups of 3R orthogonal
manipulators studied have interesting kinematic properties such as, a
well-connected workspace that is fully reachable with four inverse kinematic
solutions and that does not contain any void. This study is of high interest
for the design of alternative manipulator geometries
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