Wet clutches play a critical role in automotive driveline systems as wet clutches may degrade while the driveline is running. Sudden failure of the running wet clutch causes unpredictable breakdown of the driveline. This is mainly due to friction material degradation. To avoid the latter, the friction material degradation history must be monitored. Unfortunately, such degradation is difficult t...

In this paper, a three dimensional mathematical model for HTLV-1infection with intracellular delay and immune activation delay is investigated.By applying the frequency domain approach, we show that time delays candestabilize the HAM/TSP equilibrium, leading to Hopf bifurcations and sta-ble or unstable periodic oscillations. At the end, numerical simulations areillustrated.

To test the hypothesis that o-hydroxy amines are proximate agents in chemical carcinogenesis paraffin pellets containing the hydrochlorides of 2-amino-l-fluorenol, 2-amino-3-fluorenol, 2-amino-5-fluorenol, 2-amino-7-fluorenol, 2-fluorenamine, and 1amino-2-naphthol were implanted into the urinary bladders of Swiss female mice. Paraffin pellets alone were implanted as controls. Histological exami...

A control mechanism that limits nuclear division is pres ent in contact-inhibited nontumorigenic mouse BALB/3T3 cells and mouse embryo fibroblasts. In the absence ofcytoplasmic division, 3T3 and mouse embryo fibroblast cells may undergo nuclear division once or occasionally twice and then stop. Also, there is no increase in the frequency of premature chromosome condensation. In non-contactinhib...

Background: Protein-protein interactions do not provide any direct information re‌garding the domains within the proteins that mediate the interactions. The majority of proteins are multi domain proteins and the interaction between them is often defined by the pairs of their domains. Most of the former studies focus only on interacting do‌main pairs. However they do not consider the in...

7 Atrial fibrillation (AF) is the most common cardiac arrhythmia whose me8 chanisms are thought to be mainly due to the self perpetuation of spiral waves 9 (SW). To date, available treatment strategies (antiarrhythmic drugs, radiofre10 quency ablation of the substrate, electrical cardioversion) to restore and to 11 maintain a normal sinus rhythm have limitations and are associated with AF 12 re...

A novel cavity perturbation technique using coaxial cavity ruonators for the measurement of complex permittivity of liquids is presented. The method employs two types of resonators (Resonator I and Resonator ll). Resonator l operates in the fre­ quency range 600 MHZ-7 CH2 and resonator ll operates in the frequency range 4 Gliz-14 CH2. The introduction of the capillary tube filled wit? the sampl...

Three members of the same family with hereditary congenital nystagmus (eN) were studied. Nystagmus amplitude, fre­ quency, and Intensity functions deter­ mined the gaze angle with least nys­ tagmus. Visual acuity was increased in all cases by the use of version or composite prisms. In both pendular and jerk forms of eN, the fovea oscillated on alternate sides of the fixation spot and exhibited ...

In addition to the passive observation of a non­ linear oscillator and the description of the measured data with Lyapounow exponents [1, 2], fractal dimensions [3-5], entropies [6], etc. it is possible to charcterize a non-linear oscillator by an active method, namely by determining its response to specific perturbations. The resonances of harmonic systems which are brought about by a sinusoida...

Relatively small numbers of Sarcoma I cells were trans planted intradermally in A/WySn mice to study the course of growth when the size of the transplant is comparable to an early stage of spontaneous cancer. Transplants of 31 to 32,000 cells took one of three courses: no apparent growth; development of tumor followed by regression; on prognes sive growth. Transplants of 8,000 cells were the mo...