71,385 research outputs found
Advanced instrumentation concepts for environmental control subsystems
Design, evaluation and demonstration of advanced instrumentation concepts for improving performance of manned spacecraft environmental control and life support systems were successfully completed. Concepts to aid maintenance following fault detection and isolation were defined. A computer-guided fault correction instruction program was developed and demonstrated in a packaged unit which also contains the operator/system interface
Computer- and robot-assisted Medical Intervention
Medical robotics includes assistive devices used by the physician in order to
make his/her diagnostic or therapeutic practices easier and more efficient.
This chapter focuses on such systems. It introduces the general field of
Computer-Assisted Medical Interventions, its aims, its different components and
describes the place of robots in that context. The evolutions in terms of
general design and control paradigms in the development of medical robots are
presented and issues specific to that application domain are discussed. A view
of existing systems, on-going developments and future trends is given. A
case-study is detailed. Other types of robotic help in the medical environment
(such as for assisting a handicapped person, for rehabilitation of a patient or
for replacement of some damaged/suppressed limbs or organs) are out of the
scope of this chapter.Comment: Handbook of Automation, Shimon Nof (Ed.) (2009) 000-00
A System for Real-Time Interactive Analysis of Deep Learning Training
Performing diagnosis or exploratory analysis during the training of deep
learning models is challenging but often necessary for making a sequence of
decisions guided by the incremental observations. Currently available systems
for this purpose are limited to monitoring only the logged data that must be
specified before the training process starts. Each time a new information is
desired, a cycle of stop-change-restart is required in the training process.
These limitations make interactive exploration and diagnosis tasks difficult,
imposing long tedious iterations during the model development. We present a new
system that enables users to perform interactive queries on live processes
generating real-time information that can be rendered in multiple formats on
multiple surfaces in the form of several desired visualizations simultaneously.
To achieve this, we model various exploratory inspection and diagnostic tasks
for deep learning training processes as specifications for streams using a
map-reduce paradigm with which many data scientists are already familiar. Our
design achieves generality and extensibility by defining composable primitives
which is a fundamentally different approach than is used by currently available
systems. The open source implementation of our system is available as
TensorWatch project at https://github.com/microsoft/tensorwatch.Comment: Accepted at ACM SIGCHI Symposium on Engineering Interactive Computing
Systems (EICS 2019). Code available as TensorWatch project at
https://github.com/microsoft/tensorwatc
Focal Spot, Fall/Winter 2010/2011
https://digitalcommons.wustl.edu/focal_spot_archives/1115/thumbnail.jp
MISSED: an environment for mixed-signal microsystem testing and diagnosis
A tight link between design and test data is proposed for speeding up test-pattern generation and diagnosis during mixed-signal prototype verification. Test requirements are already incorporated at the behavioral level and specified with increased detail at lower hierarchical levels. A strict distinction between generic routines and implementation data makes reuse of software possible. A testability-analysis tool and test and DFT libraries support the designer to guarantee testability. Hierarchical backtrace procedures in combination with an expert system and fault libraries assist the designer during mixed-signal chip debuggin
Medical image computing and computer-aided medical interventions applied to soft tissues. Work in progress in urology
Until recently, Computer-Aided Medical Interventions (CAMI) and Medical
Robotics have focused on rigid and non deformable anatomical structures.
Nowadays, special attention is paid to soft tissues, raising complex issues due
to their mobility and deformation. Mini-invasive digestive surgery was probably
one of the first fields where soft tissues were handled through the development
of simulators, tracking of anatomical structures and specific assistance
robots. However, other clinical domains, for instance urology, are concerned.
Indeed, laparoscopic surgery, new tumour destruction techniques (e.g. HIFU,
radiofrequency, or cryoablation), increasingly early detection of cancer, and
use of interventional and diagnostic imaging modalities, recently opened new
challenges to the urologist and scientists involved in CAMI. This resulted in
the last five years in a very significant increase of research and developments
of computer-aided urology systems. In this paper, we propose a description of
the main problems related to computer-aided diagnostic and therapy of soft
tissues and give a survey of the different types of assistance offered to the
urologist: robotization, image fusion, surgical navigation. Both research
projects and operational industrial systems are discussed
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