Modeling the influence of 0.03%, 0.05% and 0.08% blood alcohol concentrations on lane positioning and steering control of Indian drivers

2021 ◽  
pp. 1-11
Author(s):  
Ankit Kumar Yadav ◽  
Nagendra R. Velaga
Keyword(s):  
Blood Alcohol ◽  
Steering Control

Eye Movements and Skills Performance Measures under Alcohol in a Driving Simulator

1979 ◽  
Vol 23 (1) ◽  
pp. 389-393 ◽  
Author(s):  
Herbert Moskowitz ◽  
Kenneth Ziedman
Keyword(s):  
Driving Simulator ◽  
Blood Alcohol ◽  
Steering Control ◽  
Joint Function ◽  
Long Duration ◽  
Heading Angle ◽  
Alcohol Treatments ◽  
Male Subjects ◽  
Experimental Runs ◽  
Alcohol Alcohol

Twenty-five male subjects in two groups (n's = 13 and 14) drove for 15 minutes in a simulator presenting a rural roadway scene. Subjects were required to maintain a constant heading angle, a constant speed, and to search for and respond appropriately to route signs. The two groups differed in training, the familiar group receiving training on the same route and signs in the experimental runs, the unfamiliar group being trained on different roadways and signs. After training, subjects attended three experimental runs under alcohol treatments producing mean blood alcohol concentrations of 0 (placebo), .085% and .125%. Results include large increases in dwell (fixation) and pursuit durations, indicating an increase in the time necessary to process information under alcohol. Alcohol also produced a large increase in very long duration fixations of over one second, which appeared to be non-productive “gazing.” The frequency of fixation decreased as the duration increased under alcohol. The effect of alcohol on the time to read the route signs was a joint function of the alcohol level, the amount of information in the sign and the familiarity with the sign. There was a greater increase in fixation duration for reading the route sign under alcohol for the unfamiliar group compared to the familiar group. Alcohol also increased speed and steering control errors.

Blood Alcohol Levels Following Attempted Suicide

1963 ◽  
Vol 24 (1) ◽  
pp. 14-22 ◽  
Author(s):  
I. Pierce James ◽  
D. N. Scott-Orr ◽  
D. H. Curnow
Keyword(s):  
Attempted Suicide ◽  
Blood Alcohol ◽  
Blood Alcohol Levels

Social Characteristics and Blood Alcohol Level; Measurements of Subgroup Differences

1972 ◽  
Vol 33 (1) ◽  
pp. 132-147 ◽  
Author(s):  
Henry Wechsler ◽  
Denise Thum ◽  
Harold W. Demone ◽  
Joanne Dwinnell
Keyword(s):  
Blood Alcohol Level ◽  
Social Characteristics ◽  
Blood Alcohol ◽  
Subgroup Differences

Adjust Method of Nonlinear Gain in Four-Wheel Steering Control Using Sliding Mode Control

2009 ◽  
Vol 129 (7) ◽  
pp. 1389-1396 ◽  
Author(s):  
Misawa Kasahara ◽  
Yuki Kanai ◽  
Ryoko Shiraki ◽  
Yasuchika Mori
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
Steering Control ◽  
Nonlinear Gain ◽  
Mode Control

The Importance of Alcohol Testing by Gas Chromatography vs the Cordebard Classical Method Modified in the Medico Legal Investigation

2018 ◽  
Vol 69 (9) ◽  
pp. 2407-2410
Author(s):  
Dan Perju Dumbrava ◽  
Carmen Corina Radu ◽  
Sofia David ◽  
Tatiana Iov ◽  
Catalin Jan Iov ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chromatographic Method ◽  
Classical Method ◽  
Blood Alcohol Concentration ◽  
Alcohol Concentration ◽  
Blood Alcohol ◽  
Technical Details ◽  
Gas Chromatographic Method ◽  
Alcohol Testing ◽  
Living Person

Considering the growing number of requests from the criminal investigations authorities addressed to the institutions of legal medicine, testing of blood alcohol concentration both in the living person and in the corpse, we believe that a presentation of the two methods which are used in our country, is a topic of interest at present. The purpose of this article is to provide the reader with the technical details on how blodd alcohol concentration is realised by means of the gas chromatographic method and the classical one, (Cordebard modified by D. Banciu and I. Droc) respectively. Another purpose of this article is to also show, in a comparative way, the elements that make the gas chromatographic method superior to the former one.

scholarly journals Combination of Alcohol and EVOH as a New Embolic Agent: Midterm Tissue and Inflammatory Effects in a Swine Model

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Jean-François Hak ◽  
Farouk Tradi ◽  
Mickael Bobot ◽  
Pauline Brige ◽  
Paul Habert ◽  
...  
Keyword(s):  
Vascular Occlusion ◽  
Embolic Agent ◽  
Swine Model ◽  
Blood Alcohol ◽  
Alcohol Content ◽  
Ethylene Vinyl Alcohol ◽  
Blood Alcohol Content ◽  
Tubular Necrosis ◽  
Group 2 ◽  
Group 1

Objective. To evaluate the vascular occlusion and midterm tissue toxicity properties of a combination of ethylene-vinyl alcohol (EVOH) (Squid 18®) (75%) and alcohol (25%)—Alco-Squid 18—in a swine model. Materials and Methods. Alco-Squid 18 (75% Squid 18® mixed with 25% alcohol) (AS18) was compared to embolization with 96% alcohol alone and to embolization with Squid 18® (S18®) alone. An arteriovenous malformation (AVM) model was created in group 1 (n = 2). Each AVM model was then embolized with AS18 or S18® alone with evaluation of a ratio between the volume of embolic agent divided by the volume of the AVM (evaluated by CT). For group 2 (n = 5), each agent was tested on three different kidneys (upper pole kidney artery). Pre- and postinterventional CTs, angiographies, blood alcohol content dosages, and histological studies (3 months postintervention) were performed. Results. AS18 has better distal distribution than S18® alone, both in the kidneys (mean capsule-S18® distance: 3.9 mm (±0.23) and mean capsule-AS18 distance: 2.3 mm (±0.11) ( p = 0.029 ) and in the AVM model. Histological exploration found a higher rate of tubular necrosis with AS18 compared with S18® alone and alcohol alone (3.78 ± 0.44 compared to 2.33 ± 1.22 p   =  0 . 012 and 1.22 ± 0.67 p   < 0   . 0001 ). The blood alcohol content was negligible in all cases. Conclusion. AS18 can suggest a better distal sclerotic and embolic character as compared with S18® alone without systemic toxicity.

scholarly journals Rotary steerable systems: mathematical modeling and their case study

2021 ◽  
Vol 11 (6) ◽  
pp. 2743-2761
Author(s):  
Caetano P. S. Andrade ◽  
J. Luis Saavedra ◽  
Andrzej Tunkiel ◽  
Dan Sui
Keyword(s):  
Directional Drilling ◽  
Steering Control ◽  
Fundamental Physics ◽  
Drilling Tools ◽  
Drilling Operations ◽  
Beam Bending ◽  
Extended Reach Drilling ◽  
And Control ◽  
2D And 3D

AbstractDirectional drilling is a common and essential procedure of major extended reach drilling operations. With the development of directional drilling technologies, the percentage of recoverable oil production has increased. However, its challenges, like real-time bit steering, directional drilling tools selection and control, are main barriers leading to low drilling efficiency and high nonproductive time. The fact inspires this study. Our work aims to contribute to the better understanding of directional drilling, more specifically regarding rotary steerable system (RSS) technology. For instance, finding the solutions of the technological challenges involved in RSSs, such as bit steering control, bit position calculation and bit speed estimation, is the main considerations of our study. Classical definitions from fundamental physics including Newton’s third law, beam bending analysis, bit force analysis, rate of penetration (ROP) modeling are employed to estimate bit position and then conduct RSS control to steer the bit accordingly. The results are illustrated in case study with the consideration of the 2D and 3D wellbore scenarios.

Robust steering assistance control for tracking large-curvature path considering uncertainties of driver’s steering behavior

2021 ◽  
pp. 095440702097682
Author(s):  
Jinxiang Wang ◽  
Zhenwu Fang ◽  
Mengmeng Dai ◽  
Guodong Yin ◽  
Jingjing Xia ◽  
...  
Keyword(s):  
Path Following ◽  
Vehicle Speed ◽  
Time Varying ◽  
Steering Control ◽  
Characteristic Parameters ◽  
Parameter Uncertainties ◽  
Large Curvature ◽  
Steering Characteristics ◽  
Dynamic Compensator ◽  
Takagi Sugeno

A human-machine shared steering control is presented in this paper for tracking large-curvature path, considering uncertainties of driver’s steering characteristics. A driver-vehicle-road (DVR) model is proposed in which uncertain characteristic parameters are defined to describe the human driver’s steering behaviors in tracking large-curvature path. Then the radial basis function neural network (RBF) is used to estimate parameters of different drivers’ characteristics and to obtain the boundaries of these parameters. Parameter uncertainties of the driver’s steering characteristics and time-varying vehicle speed of the DVR model are handled with the Takagi-Sugeno (T-S) fuzzy logic. And these parameter uncertainties are considered in the design of the shared steering controller. Then based on the DVR model, a T-S fuzzy full-order dynamic compensator with D-pole assignment is designed to assist driver’s steering for tracking path with large curvature. Simulation results show that the proposed controller can provide individual levels of steering assistance in path following according to driver’s proficiency, and can improve driving comfort significantly.

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