Proper planning of assembly lines is one of the production managers’ concerns at the tactical level so that it would be possible to use the machine capacity, reduce operating costs and deliver customer orders on time. The lack of an efficient method in balancing assembly line can create threatening problems for manufacturing organizations. The use of assembly line balancing methods cannot balan...

Lubrication is critical for minimizing wear in mechanical systems that operate for extended time periods. Developing lubricants that can be used in engineering systems without replenishment – particularly those that are environmentally friendly – is very important for increasing the functional lifetime of mechanical components. In the present investigation, extended duration pin-on-disk experim...

Recent advances in three-dimensional (3D) graphene assembly have shown how we can make solid porous materials that are lighter than air. It is plausible that these solid materials can be mechanically strong enough for applications under extreme conditions, such as being a substitute for helium in filling up an unpowered flight balloon. However, knowledge of the elastic modulus and strength of t...

For efficient polarity and migration, cells need to regulate the magnitude and spatial distribution of actin assembly. This process is coordinated by reciprocal interactions between the actin cytoskeleton and mechanical forces. Actin polymerization-based protrusion increases tension in the plasma membrane, which in turn acts as a long-range inhibitor of actin assembly. These interactions form a...

Introduction Among nineteen types of collagen identified in a wide range of vertebrate tissues, type II collagen is one of the most common collagens and forms the principle fibrillar component of cartilage. Alterations of type II collagen are responsible for many joint diseases, such as osteoarthritis. Previous biomechanical studies suggested that mechanical properties of cartilage at the gross...

materials assembly Andrew Carlson, Hyun-Joon Kim-Lee, Jian Wu, Paulius Elvikis, Huanyu Cheng, Anton Kovalsky, Steven Elgan, Qingmin Yu, Placid M. Ferreira, Yonggang Huang, Kevin T. Turner, and John A. Rogers Department of Materials Science and Engineering, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Illinois 61801, USA Depart...

Assemblability analysis and evaluation play a key role in assembly design, assembly operation analysis and assembly planning. This paper proposes an integrated approach to assemblability analysis and evaluation for STEP-based (STandard for the Exchange of Product model data, officially ISO 10303) electro-mechanical products. In the paper, two assembly representation models are first brought up ...

The electronics on board of spatial equipment undergos severe mechanical solicitations. Structural adhesives are used for bonding electronic components on Printed Circuit Boards (PCBs). To prevent these components from failing in vibration, experience and integration of failure criteria are very essential in practice. This paper leads to assess the reliability of a failure criterion being used ...

The fabrication of purely polymeric free-standing structures of nanoscale thickness is technically challenging because of the poor mechanical stability of conventional polymers. Conjugated polymers (CP) composed of rod-like chains with much stronger mechanical properties are exploited here for layer-by-layer assembly. We successfully fabricated ultrathin freestanding layer-by-layer conjugated f...

tion rate. It is not an easy task to make and modify software Automatic recognition of mechanical assembly drawings is and symbol dictionaries, according to the types of the a difficult problem in drawing recognition. In this paper, a diagrams. heuristic recognition method 'serial numberleader line-part A more recent interest in drawing recognition is that of symboln is described to recognize a...