Results 131 to 140 of about 4,779 (297)

Looking for Trouble: Pre‐Intervention Monitoring in Human and AI Driver Training

open access: yesSymbolic Interaction, EarlyView.
We compare two types of situations involving monitoring of car driving: a driving instructor overseeing a trainee driver and a safety driver overseeing the performance of autonomous vehicle (AV) software. Our focus is on instances of monitoring that precede (1) interventions that are aborted before impacting the driving and (2) actual interventions on ...
Mathias Broth   +2 more
wiley   +1 more source

Stiffness Calculation and Influence Factor Analysis of Spur Gear Pair Considering Time-varying Friction

open access: yesJixie chuandong, 2019
Aiming at the problem of time-varying friction in the meshing process of spur gear pair, the meshing model of spur gear pair is established, and the relative sliding velocity, rolling speed, sliding-rolling ratio, comprehensive radius of curvature and ...
Tao Zhang   +3 more
doaj  

Dynamic effects of internal spur gear drives [PDF]

open access: yes, 1983
Static analysis, dynamic analysis, and computer programs are discussed.
August, R.   +3 more
core   +1 more source

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat   +3 more
wiley   +1 more source

Calculation and Analysis of TVMS Considering Profile Shifts and Surface Wear Evolution Process of Spur Gear

open access: yesChinese Journal of Mechanical Engineering
Profile shift is a highly effective technique for optimizing the performance of spur gear transmission systems. However, tooth surface wear is inevitable during gear meshing due to inadequate lubrication and long-term operation.
Wenzheng Liu   +3 more
doaj   +1 more source

Experimental investigation of the performance and energy consumption efficiency of elliptical gear hydraulic pump and evaluation by Taguchi method

open access: yesEngineering Science and Technology, an International Journal
This study presents an approach based on the Taguchi method to evaluate the energy consumption performance of spur and elliptical gear hydraulic pumps. Output flow is one of the essential indicators of gear pump performance.
Mithat Yanikören
doaj   +1 more source

ADVANCED NUMERICAL METHODS FOR THE DYNAMIC OPTIMISATION OF MECHANICAL COMPONENTS [PDF]

open access: yes, 2009
This PhD thesis concerns the development and assessment of innovative methodologies for simulating and improving the dynamic behaviour of mechanical components.
Venturi, Valerio, Venturi, V.
core  

Den attendance by Arctic foxes experiencing 10 years of increasing tourism

open access: yesWildlife Biology, EarlyView.
Wildlife tourism is a growing industry, and an increasing number of people seek to observe and interact with wild animals in their natural surroundings. In Iceland, the native Arctic fox Vulpes lagopus is widespread and has been under heavy hunting pressure for centuries.
Ester Rut Unnsteinsdóttir   +2 more
wiley   +1 more source

Minimal impact of spotted hyenas on livestock and endangered species in a prey‐rich ecosystem

open access: yesWildlife Biology, EarlyView.
The diet of large carnivores is of great interest to conservation managers, as it can reveal the extent of human–carnivore conflict and the impact of carnivores on species of high conservation priority. Metabarcoding of environmental DNA can identify species and is often more reliable than observational or morphological methods, particularly when it ...
Arjun Dheer   +6 more
wiley   +1 more source

渐开线弧齿圆柱齿轮的应力分析

open access: yesJixie chuandong, 2010
The geometrical parameters of the involute arc cylindrical gear are introduced.Starting from their tooth flank equations,the equations of the lines of contact and contact ratio are analyzed.On this basis,it proposes the method for calculating the contact
吴伟伟   +3 more
doaj  

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