Hemodynamic mechanical cues play a critical role in the early development and functional maturation of cardiomyocytes (CM). Therefore, tissue engineering approaches that incorporate immature CM into functional cardiac tissues capable of recovering or replacing damaged cardiac muscle require physiologically relevant environments to provide the appropriate mechanical cues. The goal of this work i...

OBJECTIVE To identify working tasks and stable characteristics that determine intensity and variability of personal exposure to dust and endotoxin among pig farmers. METHODS Three hundred fifty-four personal full-shift measurements were performed in 231 farmers employed in 53 Danish pig farms. Filters were gravimetrically analysed for inhalable dust and for endotoxin by the Limulus amebocyte ...

  Omni directional mobile robots have been popularly employed in several applications especially in soccer player robots considered in Robocup competitions. However, Omni directional navigation system, Omni-vision system and solenoid kicking mechanism in such mobile robots have not ever been combined. This situation brings the idea of a robot with no head direction into existence, a comprehensi...

Applications of microelectromechanical systems (MEMS) technology are widespread in both industrial and research fields providing miniaturized smart tools. In this review, we focus on MEMS applications aiming at manipulations and characterization of biomaterials at the single molecule level. Four topics are discussed in detail to show the advantages and impact of MEMS tools for biomolecular mani...

handling. No easy, definitive, and affordable test can demonstrate effectiveness before each use. Wearers may find the mask uncomfortable. We encourage innovation to improve respiratory protection options. Future studies must be conducted to determine levels of protection achieved when naive users, following instructions, produce a similar mask from identical or similar raw materials. Research ...

iran is believed to occupy the second place, following turkey, among the apricot producing countries in the world. iran is faced with problems in export of apricot due to little or non-observance of drying principals and inattention to world market requirements. the physical and mechanical properties of agricultural products are the most needed and important parameters for design and developmen...

Needle visualization is important for safe and successful ultrasound-guided peripheral nerve block. Howev accurate and consistent visualization of the needle tip can be difficult to achieve. This review article desc many of the challenges affecting needle visualization, summarizes the relevant literature on ultrasound imag of needles, and offers practical strategies for improving needle tip vis...

The micro-manipulation system developed in Laboratoire de Robotique de Paris (LRP) is described in this paper. This system, called [mü]MAD, is based on the use of adhesion forces and inertial effects for handling of objects which range from 1 to 100μm. Moreover, enhanced user interaction is provided through a 6 dof haptic interface for force feedback remote handling. Some advanced features of [...

mechanical damages inflicted upon seeds in harvesting, handling and further subsequent processes are worth attention because they unfavourably influence the quality of seed. seed damage results in lower grain value, storage problems, and reduced seed germination and seedling vigor, resulting in a subsequent diminishing yield of future crops. the present experiments were conducted to determine t...