The Underwater Laser Surveying System: A New Concept

1970 ◽  
Vol 92 (2) ◽  
pp. 288-292
Author(s):  
D. R. Borchardt ◽  
R. S. Witte
Keyword(s):  
Light Source ◽  
Civil Engineering ◽  
Reference Points ◽  
Argon Gas ◽  
Gas Laser ◽  
System A ◽  
Underwater Laser ◽  
Actual Location

In January of 1969 under contract to the Naval Civil Engineering Laboratories (NCEL), TRW delivered to Project TEKTITE an underwater surveying system which utilized a portable, pulsed ion, argon gas laser as the reference light source. The intent of the system was to demonstrate the feasibility of conducting standard surveying operations by constructing several different size rectangles on the floor of the ocean and measuring the contours in the area of these rectangles. In addition, the actual location of the laser and the orientation of the rectangular plot was to be accurately located relative to reference points on a shoreline considered inaccessible to the divers. The Underwater Laser Surveying System (ULSS) has successfully met or exceeded all design objectives.

Otoscopy and Photography

1979 ◽  
Vol 88 (6) ◽  
pp. 771-773 ◽  
Author(s):  
Benjamin Chen ◽  
Terry L. Fry ◽  
Newton D. Fischer
Keyword(s):  
Light Source ◽  
Clinical Application ◽  
Middle Ear ◽  
Optical System ◽  
Strobe Light ◽  
System A ◽  
The Subject ◽  
Ear Canals ◽  
Light Color ◽  
Otoscopic Examination

A new hand-held otoscope photographic system, convenient and suitable for clinical application, is introduced. This instrument allows clear otoscopic examination in stenotic or tortuous ear canals, and photographs the subject in one procedure. The instrument consists of a rodlens optical system, a fiberoptic light source, a camera, and exchangeable speculum and a strobe light. Color photographs of tympanic membranes and middle ear pathology are presented.

scholarly journals Adaptando el Lean Project Delivery System a la elaboración o actualización de un plan de estudios de ingeniería civil incorporando BIM, Realidad Virtual y Fotogrametría = Adapting Lean Project Delivery System to the elaboration or updating of the Civil Engineering Undergraduate Degree Plan, incorporating BIM, Virtual Reality and Photogrammetry

2020 ◽  
Vol 4 (3) ◽  
pp. 35
Author(s):  
Xavier Brioso ◽  
Diego Fuentes Hurtado
Keyword(s):  
Virtual Reality ◽  
Delivery System ◽  
Civil Engineering ◽  
Project Delivery ◽  
Lean Principles ◽  
System A ◽  
Catholic University ◽  
A Value ◽  
Management Area

El Lean Project Delivery System (LPDS) es un sistema que implementa principios y herramientas Lean en todo el ciclo de vida de un proyecto de construcción. El LPDS es adaptativo pues es flexible para especificar las entradas y salidas de los procesos y tiene la libertad de elegir herramientas, técnicas y tecnologías acorde a las últimas tendencias. El propósito principal de este artículo es presentar un marco de generación de valor a través de la adaptación del LPDS al proceso de revisión de un plan de estudios. Este trabajo adapta el modelo del LPDS al proyecto de elaboración o actualización de un plan de estudios de la especialidad de ingeniería civil, incorporando BIM, realidad virtual y fotogrametría a lo largo de las asignaturas del área de gestión de la construcción. Se incluyen herramientas blandas y competencias tecnológicas que potencian la empleabilidad del egresado. Como estudio de caso se presenta la aplicación del modelo en la Pontificia Universidad Católica del Perú.ABSTRACTLean Project Delivery System (LPDS) is a system that implements Lean principles and tools throughout the life cycle of a construction project. The LPDS is adaptive because it's flexible enough to specify the inputs and outputs of each process and allows the freedom to choose tools, techniques and technologies according to the latest trends. The main purpose of this paper is to present a value-generation framework through the adaptation of the LPDS to the Undergraduate Degree Plan process. This work adapts the LPDS model to the current project, elaboration or updating of the civil engineering curriculum, incorporating BIM, virtual reality and photogrammetry in the construction management area subjects. Soft tools and technological skills are included, and as such, enhancing the employability of the undergraduate. As a case study, the application of the model is presented at the Pontifical Catholic University of Peru.

Improving the Accuracy of Robot-Based Measuring System by Calibrating Laser-Stripe Scanner Model and Hand-to-Scanner Transformation

2010 ◽  
Vol 44-47 ◽  
pp. 707-711
Author(s):  
Ai Guo Li ◽  
Xiang Wu ◽  
De Feng Wu ◽  
Wen Biao Wang
Keyword(s):  
Industrial Robot ◽  
Calibration Method ◽  
Reference Points ◽  
Measuring System ◽  
Calibration Error ◽  
Scanning System ◽  
System A ◽  
Laser Stripe ◽  
Object Inspection ◽  
Scanner Calibration

This paper focuses on the system for object inspection by use of a laser stripe scanner and an industrial robot. In order to ensure the precision of the scanning system, a one-stage calibration method is proposed. This scheme mainly utilizes a circular-marked board as calibration target and calibrated the scanner model and hand-to-scanner transformation simultaneously using the same reference points. Therefore the influences of the scanner calibration error on the hand-to-scanner calibration can be eliminated naturedly. Finally, some experimental results are reported and analyzed.

Swarm Robotic Systems Based on Collective Behavior of Chloroplasts

2017 ◽  
Vol 29 (3) ◽  
pp. 602-612 ◽  
Author(s):  
Satoshi Hoshino ◽  
◽  
Ryo Takisawa ◽  
Yutaka Kodama ◽  
Keyword(s):  
Light Source ◽  
Collective Behavior ◽  
Autonomous Robots ◽  
Cooperative Behavior ◽  
Ground Surface ◽  
Robotic Systems ◽  
Behavioral Models ◽  
System A ◽  
Robot Behavior ◽  
Behavior Models

[abstFig src='/00290003/15.jpg' width='300' text='Swarming chloroplastic robots around light source' ] In this paper, distributed autonomous robots are used to perform area coverage tasks. In order for robots to cover the ground surface of environments, the coordination of a team of robots is a challenge. For this challenge, we present bio-inspired swarm robotic systems. We focus on the collective behavior of chloroplasts toward a light source. On the basis of the mechanism of the chloroplast, we propose robot behavior models that do not use local communication. The emergence of cooperative behavior through the interaction among the swarming robots is a main contribution of this paper. Based on simulation results, the effectiveness of the chloroplastic robots for the coverage task is discussed in terms of flexibility and scalability. Furthermore, the behavioral models are applied to actual mobile robots. Based on the results of experiments, the applicability of the chloroplastic robots to real environments is discussed. As an application of the swarm robotic system, a specific task, sweeping, is given to actual chloroplastic robots.

A Novel Biosensor Based on LAPS for the Detection of IgG

2014 ◽  
Vol 1030-1032 ◽  
pp. 2354-2359
Author(s):  
Ming Yuan Guan ◽  
Guo Yin Huang ◽  
Gui Yin Li ◽  
Guo Wei Shi ◽  
Long Fei Ma ◽  
...  
Keyword(s):  
Immune Response ◽  
Light Source ◽  
Laser Diode ◽  
Linear Correlation ◽  
Self Assembly ◽  
Sine Wave ◽  
Layer By Layer ◽  
Igg Antibody ◽  
System A ◽  
Light Addressable Potentiometric Sensor

Immunoglobulin G (IgG) is one of the most important factors in diagnosing some diseases in clinic. A novel biosensor for dectection of IgG based on light-addressable potentiometric sensor (LAPS) was presented in this paper. The LAPS measurement system included the LAPS sensor, light source, the electrode and the electrochemical workstation. The LAPS sensor was fabricated by the method of the Layer-by-Layer Self-Assembly (LBL-SA). The IgG antibody modified onto the silicon wafer of LAPS to capture the corresponding antigen by the specific immune response which has an effect on the sensitive of LAPS to change the photocurrent. The laser diode (LD) light source of 890 nm wavelength was chose as illuminant to drive the LAPS to create the photocurrent. A FPGA was introduced to control the LD and generate a sine wave signal with the special frequency. Different concentration of IgG arranged 50-150μg/mL was detected by the LAPS system. A calibration curve that represented linear correlation between the bias voltage values and theconcentration of IgG was illustrated, and the linear correlation coefficient was 0.9943. This new biosensor can be very useful for detection of IgG based on the LAPS principle.

Development of a Compact and Cost Effective MSL System Based on a Compliant Nanomanipulator

2019 ◽  
Author(s):  
Zheng Liu ◽  
Zhen Zhang ◽  
Yingchun Guan
Keyword(s):  
Light Source ◽  
Cost Effective ◽  
Experimental Results ◽  
System A ◽  
Laser Module

Abstract This paper proposes a compact and cost-effective MSL (Micro Stereo Lithography) prototyping system. A self-developed compliant XY nanomanipulating stage is responsible for the fabrication quality in one layer. And a blu-ray LED laser module is utilized as a cost-effective light source. The experimental results show that the MSL prototyping system is capable of achieving ∼ 2 μm cured width for circular patterns.

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