The modular modeling of the 3-dimensional mechanics of a racing car with Modelica is discussed. For example, one base model class of the wheel suspension is defined and used to model 4 occurences in the front and rear suspension. This model of the car is based on a new Modelica library to model 3-dimensional mechanical systems. This library is explained in some detail.

purpose: to describe a complicated case of traumatic carotid-cavernous fistula (ccf) and our management strategy. case report: a 13-year-old patient was referred one month following a car accident and facial trauma with severe proptosis, chemosis and limitation of ocular movement. presence of murmur and an enlarged superior ophthalmic vein on orbital imaging suggested an arteriovenous fistula. ...

We present a new approach to digital forensic evidence acquisition and disk imaging called sifting collectors that images only those regions of a disk with expected forensic value. Sifting collectors produce a sector-by-sector, bit-identical AFF v3 image of selected disk regions that can be mounted and is fully compatible with existing forensic tools and methods. In our test cases, they have ac...

The cortisol awakening response (CAR), a rapid increase in cortisol levels following morning awakening, is an important aspect of hypothalamic-pituitary-adrenocortical axis activity. Alterations in the CAR have been linked to a variety of mental disorders and cognitive function. However, little is known regarding the relationship between the CAR and error processing, a phenomenon that is vital ...

( a Department of Civil Engineering, Tsinghua University, Beijing 100084, China) Abstract: Considering high speed following on expressway or highway, an improved car-following model is developed in this paper by introducing variable safety headway distance. Stability analysis of the new model is carried out using the control theory method. Finally, numerical simulations are implemented and the ...

This paper has incorporated the stochasticity into the Newell car following model. Three stochastic driving factors have been considered: (i) Driver’s acceleration is stochastic and bounded. (ii) Driver’s deceleration includes stochastic component, which is depicted by a deceleration with the randomization probability that is assumed to increase with the speed. (iii) Vehicles in the jam state h...

In this study, a mathematical method is proposed for calculating the concentration field of air ions different polarities and dust levels in passenger compartment, taking into account geometry compartment seats, shelves, other internal elements compartment. The also takes changes rate flow ventilation, location number ionizers, sources positive dust, their intensities locations. On basis numeri...