But with Mr. Bush's commitment to press ahead with a missile-defense program, Mr. Yan said, "it appears that the only thing that could prevent" eventual deployment was "a technology obstacle," which would strain relations.
Although considerable research efforts have been devoted to the R&D of this potentially disruptive technology, many scientific and engineering obstacles still remain to be addressed before a practical device could be realized.
But with each new generation of technology, the obstacles have grown more imposing, and the cost of surmounting them is going up, not down.
Despite considerable progress in the field of GaN-based technology, major obstacles to the realization of the full potential of these GaN-based materials are present.
But with modern technology, these obstacles become increasingly minute.
We are negotiating edition No. 9, which has to take into account new technologies, new obstacles to trade and a new balance in the geopolitics of this world.
The analysis is based on an encompassing model of diffusion, drawn from the literature, which is extended by considering technology-specific obstacles and benefits of adoption.
In our work, we focus on developing assistive technology for obstacle avoidance for visually impaired people, because it has always been considered a primary requirement for aided mobility.
In addition, the review presents detailed theoretical aspects, design and operational considerations of electrokinetic soil-remediation variables, which are most important in efficient process application, as well as the advantages over other technologies and obstacles to overcome.
