In this paper, we describe a parts-to-substrate self-assembly approach driven by surface tension. To perform assembly, the substrates are prepared with hydrophobic gold patterns as binding sites. The binding sites are activated by adsorption of an alkanethiolate self-assembled monolayer (SAM), while they can be de-activated by electrochemical reductive desorption of the monolayer. Therefore, as...

Gross-motion planning for assembly is commonly considered as a distinct, isolated step between task sequencingscheduling and fine-motion planning. In this paper we formulate a problem of delivering parts for assembly in a manner that integrates it with both the manufacturing process and the fine motions involved in the final assembly stages. One distinct characteristic of gross-motion planning ...

We formally model the process of gene assembly in ciliates on the level of individual genes using the notion of multimatroids introduced by Bouchet. Gene assembly involves heavy splicing and recombination, and it turns out that multimatroids form a suitable abstract model that captures essential features of this process. We use this abstract model to study the effect of faulty recombinations du...

This is the first time to explore self-assembly process of double butterfly-shaped lanthanide high-nucleus clusters and propose their possible assembly mechanism.

Virtual assembly has been widely used in product development. However, virtual operation and actual operation are different in time and space, the simulation of interactive virtual assembly cannot support the assembly operation’s process planning directly. In this paper, the solution for assembly operation’s process planning is developed based on interactive virtual assembly. According to the s...

Robotic systems are widely applied in process industry to reduce manufacturing labor costs and increase production productivity. Due to the uncertainties existed in the manufacturing environment, the performance improvement of the assembly process is important yet challenging. This paper proposes a regression-based method to predict the performance of the robotic assembly process. Statistical h...

self-assembly of densely packed zno nanorods were grown on porous silicon (ps) substrate by low-temperature chemical bath deposition. the structural and optical properties of the obtained zno nanostructures on ps substrate were systematically studied. the strong and sharp (002) peak compared with other peaks in the x-ray diffraction (xrd) indicated thatzno nanorods formed with superior orientat...

In recent years, a significant growth of mini and micro products’ market shares has been detected. However, the assembly systems and assembly processes of larger products cannot be transferred to mini or micro products in an acceptable way, which results of the special physical properties of small components. Apart from new materials, special problems with handling and tolerances of these produ...

Single-crystal nanowire transistors and other nanowire-based devices could have applications in large-area and flexible electronics if conventional top-down fabrication techniques can be integrated with high-precision bottom-up nanowire assembly. Here, we extend dielectrophoretic nanowire assembly to achieve a 98.5% yield of single nanowires assembled over 16,000 patterned electrode sites with ...