Entry by spinoffs from incumbent firms is investigated for the laser industry. A model in which spinoffs exploit knowledge from their parents is constructed to explain the market conditions conducive to spinoffs, the types of firms that spawn spinoffs, and the relationship of spinoffs to their parents. The model is tested using detailed data on all laser entrants from the start of the industry ...

Most offshore wind turbines (OWTs) are supported by large-diameter monopiles, installed impact driving. OWTs dynamically sensitive structures, with a narrow design range for the eigenfrequency. Fatigue and serviceability limit states can be critical in design, so foundation stiffness plays an important role. The pile installation process results changes to soil state, investigated here through ...

We first make a note on the use of infimum instead of minimum in Equation 4 of the paper. This is because BT may only exist in the limit. An example is shown in Figure 1, where M is made up of a horizontal sheet and a vertical, cylindrical sheet close to the horizontal sheet’s boundary. The two sheets meet at a non-manifold seam with a circular shape (dotted curve). The shortest exposing tree a...

Determining the real behavior of the windshield wiper mechanisms is a priority in the design stage since the emergence of the computer graphic simulation. The paper attempts to analyze and simulate the windshield wiper systems by using a complex virtual prototyping platform, which integrates specific software solutions for realizing the 3D solid model (CATIA), modeling the MBS mechanical model ...

With the increase in high-speed train (HST) operation speed, light-weight design of body and component structure is pursued to reduce energy consumption during operation, but this seriously deteriorates aerodynamic performance outside under effect strong unsteady airflow, more obvious case frequently occurring problem vibration, large deformation, damage rubber exterior windshield at connection...