Effect of load control mode on the post-peak behaviour of siltstone

The effect of the lamellar morphology on the high cycle fatigue (HCF) and low cycle fatigue (LCF) behavior of the Ti-22Al-27Nb alloy was investigated. The HCF tests were performed in air at an R ratio of 0.1 in the load-control mode, whereas the LCF tests were performed in vacuum at 923 K in the strain-controlled mode. The specimens with fine lamellar microstructure exhibited a better resistance to HCF than those with coarse lamellar microstructure. The microstructure-insensitive behavior was, however, observed in the LCF tests at 923 K. The fatigue mechanism was discussed based on the concurrent observation of the initiation facet and the underlying microstructure, and the TEM observations.

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ИССЛЕДОВАНИЕ ЭФФЕКТИВНОСТИ ФУНКЦИОНИРОВАНИЯ АСОЗ ПТЛ НА МОРСКОМ ЗЕРНОВОМ ТЕРМИНАЛЕ В Г. НИКОЛАЕВЕ

Automation technological and business processes ◽

10.15673/atbp.v10i4.822 ◽

2018 ◽

Vol 9 (4) ◽

Author(s):

И. Н. Кирьязов ◽

С. В. Шестопалов ◽

М. Т. Степанов ◽

В. А. Хобин

Keyword(s):

Control Mode ◽

Load Management ◽

Load Control ◽

Optimization System ◽

Emergency Situations ◽

Flow Transport ◽

Automated Process Control System ◽

Grain Flow ◽

Increase Productivity ◽

Reduce Energy Consumption

In the article the results of functioning in the production conditions of the automated loading optimization system (ALOS) grain of the elevator are considered. The system is designed to generate grain flow simultaneously from several sources, increase productivity, reduce energy consumption for reloading, prevent emergency situations associated with grain debris in the boots of norias and the overhead scales of the scales due to overload. The software of the system is integrated into the software of the automated process control system of the elevator and allows the operator to specify the components of the grain flow and the initial productivity of the flow-transport lines (FTL), select the FTL load control mode and select the FTL productivity setting mode in the current process situation, control the functioning of the ALOS. The results of a comparative analysis of the efficiency of load management during the loading of vessels by the operator "manually" and using an automated loading optimization system, conducted in 2016/17, showed the following: - the average time of shipment to the ship, including idle time, decreased by 27%; - the average shipping performance without any downtime increased by 10%.

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Development of solar total energy system (Experimental results of operation by electric load control mode)

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B ◽

10.1299/kikaib.51.3798 ◽

1985 ◽

Vol 51 (471) ◽

pp. 3798-3803

Author(s):

Tadayoshi TANAKA ◽

Izumi TSUDA ◽

Tatsuo TANI

Keyword(s):

Total Energy ◽

Energy System ◽

Experimental Results ◽

Control Mode ◽

Load Control ◽

Electric Load

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Performance Analysis and Simulation Study of Boiler-Turbine Coordinated Control System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.989-994.2839 ◽

2014 ◽

Vol 989-994 ◽

pp. 2839-2844

Author(s):

Yi Yang Jiang ◽

Dong Feng Wang

Keyword(s):

Simulation Study ◽

Pid Controller ◽

Control Mode ◽

Load Control ◽

Important Process ◽

Advantages And Disadvantages ◽

Power Generation Unit ◽

Performance Analysis And Simulation ◽

Generation Unit ◽

Controlled Object

The boiler-turbine coordinated system is a very important process of a power generation unit. This paper takes 300MW power plant as the controlled object and conducts simulation study on its different kinds of load control modes under the environment of the MATLAB. The parameters of PID controller are optimized using signal constraint (S-C) module in Simulink toolbox. By analyzing the results of the simulation and comparing both the advantages and disadvantages of them, we can provide references for the choices of load control mode of power unit.

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Effect of load control mode on the fatigue performance of asphalt binder

Materials and Structures ◽

10.1617/s11527-015-0584-8 ◽

2015 ◽

Vol 49 (4) ◽

pp. 1391-1402 ◽

Cited By ~ 4

Author(s):

Liyan Shan ◽

Hong Zhang ◽

Yiqiu Tan ◽

Yanan Xu

Keyword(s):

Asphalt Binder ◽

Fatigue Performance ◽

Control Mode ◽

Load Control

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Electron holography of p-n junctions

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100167330 ◽

1996 ◽

Vol 54 ◽

pp. 974-975

Author(s):

B.G. Frost ◽

D.C. Joy ◽

L.F. Allard ◽

E. Voelkl

Keyword(s):

Electron Beam ◽

Electron Microscope ◽

Field Emission ◽

Ccd Camera ◽

Image Plane ◽

Reference Wave ◽

Field Of View ◽

Control Mode ◽

Objective Lens ◽

Electron Holography

A wide holographic field of view (up to 15 μm in the Hitachi-HF2000) is achieved in a TEM by switching off the objective lens and imaging the sample by the first intermediate lens. Fig.1 shows the corresponding ray diagram for low magnification image plane off-axis holography. A coherent electron beam modulated by the sample in its amplitude and its phase is superimposed on a plane reference wave by a negatively biased Möllenstedt-type biprism.Our holograms are acquired utilizing a Hitachi HF-2000 field emission electron microscope at 200 kV. Essential for holography are a field emission gun and an electron biprism. At low magnification, the excitation of each lens must be appropriately adjusted by the free lens control mode of the microscope. The holograms are acquired by a 1024 by 1024 slow-scan CCD-camera and processed by the “Holoworks” software. The hologram fringes indicate positively and negatively charged areas in a sample by the direction of the fringe bending (Fig.2).

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Automation Surprise

Aviation Psychology and Applied Human Factors ◽

10.1027/2192-0923/a000113 ◽

2017 ◽

Vol 7 (1) ◽

pp. 28-41 ◽

Cited By ~ 4

Author(s):

Robert J. de Boer ◽

Karel Hurts

Keyword(s):

Flight Control ◽

Representative Sample ◽

Aviation Safety ◽

Control Mode ◽

Cognitive Errors ◽

Laboratory Studies ◽

Airline Pilots ◽

Flight Operations ◽

Widespread Phenomenon ◽

Few Data

Abstract. Automation surprise (AS) has often been associated with aviation safety incidents. Although numerous laboratory studies have been conducted, few data are available from routine flight operations. A survey among a representative sample of 200 Dutch airline pilots was used to determine the prevalence of AS and the severity of its consequences, and to test some of the factors leading to AS. Results show that AS is a relatively widespread phenomenon that occurs three times per year per pilot on average but rarely has serious consequences. In less than 10% of the AS cases that were reviewed, an undesired aircraft state was induced. Reportable occurrences are estimated to occur only once every 1–3 years per pilot. Factors leading to a higher prevalence of AS include less flying experience, increasing complexity of the flight control mode, and flight duty periods of over 8 hr. It is concluded that AS is a manifestation of system and interface complexity rather than cognitive errors.

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Intensive care of a complicated form of asthmatic status (clinical case)

Medical alphabet ◽

10.33667/2078-5631-2019-2-31(406)-46-51 ◽

2019 ◽

Vol 2 (31) ◽

pp. 46-51

Author(s):

D. A. Temerov ◽

L. V. Vorobyova ◽

S. V. Vyzhevsky ◽

S. B. Savchenkov ◽

Yu. V. Marchenkov

Keyword(s):

Clinical Case ◽

Mixture Distribution ◽

Severe Pneumonia ◽

Control Mode ◽

Respiratory Support ◽

Oxygen Mixture ◽

Bronchial Obstruction ◽

Optimal Regime ◽

Pulmonary Barotrauma ◽

Airway Patency

The article presents a clinical case of successful treatment of a patient with prolonged asthmatic status. The pathogenesis of purulent-septic and other life-threatening complications developing as a result of the above critical condition is described. The positive effect of a differentiated approach in conducting respiratory support depending on the stage of the disease is justified: at the beginning, when airway obstruction is in the foreground, and in the future, when restrictive respiratory disorders develop. When conducting respiratory support, the most reasonable methods for ensuring airway patency were selected. The necessity of neurovegetative blockade and myoplegia for the prevention of pulmonary barotrauma during respiratory support by aggressive ventilation modes and with the goal of antihypoxic protection of the brain is emphasized. During the treatment of the patient, it was confirmed that the optimal regime for obstruction of the bronchi is forced volume-cyclic ventilation of the lungs to provide the necessary minute volume of breathing, and in severe pneumonia, in the case of relief of bronchial obstruction, respiratory support is carried out in pressure control mode for better air-oxygen mixture distribution in the airways. The need for early tracheostomy and daily therapeutic fibrobronchoscopy to ensure airway patency and treat pneumonia has been confirmed.

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