Hardware Design and Realization of Synthetical Altimeter Detecting-Instrument Based on Intellectronics

2013 ◽  
Vol 341-342 ◽  
pp. 847-850
Author(s):  
Yan Li Shi ◽  
Lin Ren ◽  
Yang Song ◽  
Hai Xia Yu
Keyword(s):  
Navigation System ◽  
Hardware Design ◽  
Design Procedure ◽  
Work Load ◽  
Economic Benefits ◽  
Function Measurement ◽  
Overall Design ◽  
Actual Application ◽  
System Composition

The altimeter is a very important measuring-height equipment, so the test of the altimeter is the important content to function measurement of the plane navigation system, synthetically altimeter detector can make some type altimeter test standardized, this paper introduces the overall design and system composition of the altimeter detector, it is focused on emphatically the hardware design procedure of the synthetical altimeter detector, this instrument can reduce about 30% work load of attendants, in the actual application the altimeter detector has advantages, such as good military and economic benefits.

Patients’ Dignity in a Rehabilitation Ward: ethical challenges for nursing staff

2006 ◽  
Vol 13 (3) ◽  
pp. 236-248 ◽  
Author(s):  
Aase Stabell ◽  
Dagfinn Nåden
Keyword(s):  
Nursing Staff ◽  
Qualitative Data ◽  
Work Load ◽  
Level Of Care ◽  
Ethical Challenges ◽  
Overall Design ◽  
Self Worth ◽  
Rehabilitation Ward

The purpose of this study was to explore the challenges met by nursing staff in a rehabilitation ward. The overall design was qualitative: data were derived from focus interviews with groups of nurses and analyzed from a phenomenological-hermeneutic perspective. The main finding was that challenges emerge on two levels of ethics and rationality: an economic/administrative level and a level of care. An increase in work-load and the changing potential for patient rehabilitation influence the care that nurses can provide in rehabilitating patients, and therefore also affect patients’ feelings of self-worth and dignity. Some patients wish to maintain their independence and autonomy, whereas others seem to ‘lose themselves’. Independence and autonomy are associated with dignity, but their lack is contrary to it.

scholarly journals A UNIQUE INSTRUMENTATION SCHEME FOR MEASURING LOADS IN MODEL DOLOS UNITS

1986 ◽  
Vol 1 (20) ◽  
pp. 163 ◽  
Author(s):  
R.D. Scott ◽  
D.J. Turcke ◽  
W.F. Baird
Keyword(s):  
Structural Integrity ◽  
Design Procedure ◽  
Structural Response ◽  
Load Cell ◽  
Physical Models ◽  
Unit Load ◽  
Overall Design ◽  
The Individual ◽  
Static Point ◽  
Hydraulic Stability

An instrumentation scheme for the measurement of the structural response of dolos units in a physical model due to static and quasistatic forces is presented. This was achieved by the development of a specialized armour unit "load cell". The load cell was tested under a variety of loading conditions ranging from static point loads to the complex forces arising from simulated prototype wave action. In the final stage of testing, a model breakwater was constructed and analyzed. The results of these tests demonstrated the accuracy of the developed instrumentation and the feasibility of its use for measurements conducted in physical models. Knowledge of the structural response of armour units in the breakwater environment may be incorporated into an improved overall design procedure for armour units that considers both the hydraulic stability and the structural integrity of the individual units.

The Design and Research of Electronic Schoolbag Learning Environment Take "Science of Eyes" of the Science of Primary School for Exam

2014 ◽  
Vol 651-653 ◽  
pp. 2518-2523
Author(s):  
Pai Peng ◽  
Yong Jiang Zhong ◽  
Yu Han Zhang
Keyword(s):  
Learning Environment ◽  
Primary School ◽  
School Science ◽  
Practical Significance ◽  
Software Environment ◽  
Teaching Activity ◽  
Overall Design ◽  
Actual Application ◽  
Teachers And Students ◽  
Primary School Science

With the development of information technology, electronic schoolbag has become a hot topic of the broad masses of teachers and students, however, its application in the teaching not widely carried out, it is just exploratory. The biggest obstacle is the lack of the software environment and resources environment of electronic schoolbag in the application of classroom. How to design electronic schoolbag, provide an ideal learning environment for students, is the primary problems of the application of electronic schoolbag in the learning environment. This article is based on the functions and characteristics of electronic schoolbag, aiming at the problems existing in the learning environment, propose the overall design model of electronic schoolbag learning environment, analyze its features are in detail and take primary school science for example, provied concrete application case and the actual application result. It has important practical significance for the construction of electronic schoolbag learning environment and the design of teaching activity in electronic schoolbag learning environment.

A Preference-Based Robust Design Metric

1998 ◽  
Author(s):  
Harikumar V. Iyer ◽  
Sundar Krishnamurty
Keyword(s):  
Decision Making ◽  
Optimal Design ◽  
Design Method ◽  
A Priori ◽  
Design Procedure ◽  
Design Criterion ◽  
Design Metrics ◽  
Overall Design ◽  
Space Reduction ◽  
Robust Optimal Design

Abstract Robust optimal design can be studied as a problem in decision-making requiring tradeoffs between mean and variance attributes. In this context, this paper views Taguchi’s philosophy based design metrics using signal-to-noise (SN) ratios as empirical applications of decision-making under uncertainty with a priori sets of attribute tradeoff values. Alternatively, this paper presents a more rigorous preference-based design metric using concepts from utility theory to accurately capture designer’s intent and preferences. The use of this design metric as the robust optimal design criterion in a modified TRED (Tradeoffs in Robust Engineering Design) method with an innovative response-surface based iterative design space reduction strategy is presented. The effectiveness of the overall design procedure and the performance of the preference-based design metric are tested with the aid of demonstrative case studies and the results are discussed.

CONSTRAINT PROPAGATION AND PROGRESSIVE VERIFICATION FOR COMPONENT-BASED PROCESS MODEL

2004 ◽  
Vol 14 (05) ◽  
pp. 471-496 ◽  
Author(s):  
YI DENG ◽  
JIACUN WANG ◽  
XUDONG HE ◽  
JEFFREY J. P. TSAI
Keyword(s):  
Process Model ◽  
Systematic Approach ◽  
Constraint Propagation ◽  
Industrial Applications ◽  
Overall Design ◽  
Novel Technique ◽  
System Composition ◽  
Constraint Specification ◽  
Composition Process ◽  
Consistent Constraint

System assembly is one of the major issues in engineering complex component-based systems. This is especially true when heterogeneous, COTS and GOTS distributed systems, typical in industrial applications, are involved. The goal of system assembly is not only to make constituent components work together, but also to ensure that the components as a whole behave consistently and guarantee certain end-to-end properties. Despite recent advances, there is a lack of understanding about software composability, as well as theory and techniques for checking and verifying component-based systems. A theory of software system constraints about components, their environment and about system as a whole is the necessary foundation toward solid understanding of the composability of component-based systems. In this paper, we present a systematic approach for constraint specification and constraint propagation in concert with design refinement with a novel technique to ensure consistency between system-wide and component constraints in a design composition process of component-based systems. The consistent constraint propagation is used in our approach to drive progressive verification of the design. It allows us to verify overall design composition without interference of internal details of component designs. Verification is done separately at architectural and component levels without having to compose results of component analyses. A component can be safely replaced with alternative design without re-verifying the overall system composition so long as the replacement conforms to the corresponding interface and component constraint(s).

Research on Urban Traffic Navigation System Improved by Genetic Algorithm

2014 ◽  
Vol 608-609 ◽  
pp. 593-597
Author(s):  
Ya Li Luo
Keyword(s):  
Genetic Algorithm ◽  
Navigation System ◽  
Traffic Management ◽  
Design Principle ◽  
Urban Traffic ◽  
Software Developer ◽  
Overall Design ◽  
Management Personnel ◽  
Positive Effect ◽  
Implementation Steps

With the development of society, urban traffic problem attracts more and more attention from people. In view of the current traffic worsening, it hopes to effectively shunt the travelers by the urban traffic navigation system, to ease traffic pressure. This article first analyzes the genetic algorithm in detail, and describes its principle and implementation steps; then specifically analyzes the overall design and design principle of the urban traffic navigation system; and at last gives part of the core code of the system. This paper has a positive effect for the software developer and city traffic management personnel.

scholarly journals Strategies for Improving Visual Inspection Performance

1974 ◽  
Vol 18 (4) ◽  
pp. 397-403 ◽  
Author(s):  
Jerry L. Purswell ◽  
LaVerne L. Hoag
Keyword(s):  
Visual Inspection ◽  
Integrated Design ◽  
Design Procedure ◽  
Economic Effects ◽  
Defective Items ◽  
Research Results ◽  
Overall Design ◽  
Inspection Tasks ◽  
Inspection Task ◽  
Inspection Performance

This paper summarizes recent results obtained in inspection studies including several studies performed by the authors. Both static and dynamic visual inspection tasks are included. Based on these results, a proposed new integrated design procedure for inspection tasks that will approach the optimal design has been formulated. The review of recent research results includes the following primary variables: the speed of the item passing the inspector, the spacing of items, the percentage of defective items, the illumination level, the contrast between the item being inspected and the background, and the effectiveness of individual versus group inspection. The authors have used their research results in combination with the results in the literature to formulate new integrated procedures for designing inspection stations and job procedures. The authors have also analyzed the effects of inspector performance on the overall quality control plans already in use in industry. The economic effects of changes in inspector performance which result from redesign of the inspection task are then demonstrated as a part of the overall design procedure.

scholarly journals Design and analysis of PM motor with semi-circle stator design using 2D-finite element analysis

2019 ◽  
Vol 13 (1) ◽  
pp. 427
Author(s):  
Mohd Luqman M. J ◽  
Tan Cheng Kwang ◽  
Auzani Jidin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Procedure ◽  
Torque Ripple ◽  
Element Analysis ◽  
Overall Design ◽  
Rotor Design ◽  
Proper Design ◽  
Stator Design ◽  
Design Dimension

<p>This paper presents a basic approach to reduce an overall weight of selected PM motor. The approach is not based on normal sizing step by keeping the overall design in symmetry dimension, but by introducing semi-circle stator design. The investigation takes 12-slot/10-pole motor as a subject due to it symmetric winding disposition. Two designs are included, both having identical semi-circle stator but different in rotor configuration. Design 1 has a standard rotor design that equipped with 10-pole while Design 2 has a semi-circle rotor design following the stator design. This inherently result an even number of pole i.e. 5. From the investigation using 2D-Finite Element Analysis, an overall weight in PM motor can be theoretically reduced by having asymmetric design dimension. However, motor torque performance would deteriorate and unwanted noise may exist due to high cogging torque and high output torque ripple. A proper design procedure that includes parameter optimization and intelligent switching for optimum current excitation is required to restore the desired torque.</p>

Study on Overall Design of a Vertical Take-Off and Landing Unmanned Aerial Vehicle Powered by Electric Ducted Fans

2021 ◽  
Author(s):  
Tawei Chou ◽  
Qiyu Ying ◽  
Yuping Qian ◽  
Weilin Zhuge ◽  
Yangjun Zhang
Keyword(s):  
Power Unit ◽  
Unmanned Aerial Vehicle ◽  
Cfd Simulation ◽  
Design Method ◽  
Load Capacity ◽  
Design Procedure ◽  
Low Noise ◽  
Overall Design ◽  
Ducted Fan ◽  
Aerial Vehicle

Abstract Facing the growing traffic fleet in the cities nowadays, it is believed that three-dimensional urban transportation could be a solution and will be introduced in the near future. Vertical take-off and landing flying platforms powered by ducted fans will attract increasingly attention because it has advantages on high propulsion efficiency, low noise, and better safety. However, unlike traditional open-blade multi-rotor drones, ducted fan drones lack a systematic design approach that comprehensively considers the overall system performance and the power unit efficiency. Current design procedure leads to insufficient load capacity and low efficiency systems. This paper proposes an overall design method for a ducted fan-type vertical take-off and landing flight platform. The ducted fan and motor of the core power unit are designed and selected aiming at improving aerodynamic efficiency and structural utilization of the system. A heavy-load vertical take-off and landing Unmanned Aerial Vehicle (UAV) powered by ducted fans with a take-off weight of 450kg is designed based on this method. CFD simulation is utilized to calculate the performance of the designed Unmanned Aerial Vehicle, and finite element analysis is carried out to examine the overall strength safety. The final design results show that the overall design method plays a great role in the development of ducted fan UAV.

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