air-jet weaving is an advanced weaving method with high efficiency and productivity. it is one of the most widely used methods of weaving in the world. in air-jet filling insertion, the motion of weft yarn is caused by friction between weft yarn and air blown through nozzle. after declamping and subjecting the yarn to air stream, its motion is not active but very complicated and influenced by s...

The design of retaining walls depends on the magnitude of active pressure exerted from the backfill. Therefore, estimating the scale of this pressure is a fundamental factor in the design. In this study, to assess the active earth pressure, a rigid retaining wall was built capable of translating and/or rotating with adjustable speed. Further, several physical tests were conducte...

In many natural and technological multi-phase systems, bubbles are exposed to surface-active contaminants (surfactants) that may cover the whole or part of bubble interface. A partial coverage interface result in a spontaneous self-propulsion mechanism, which is yet not fully characterized. Here, dynamics partially contaminated examined using high-fidelity simulations. The simulations enable de...

Coordinated object manipulation is a fundamental problem in the study of multingered robotic hands. The conventional study has been focused on deriving control algorithms for nger joints to implement a speci ed object trajectory and recently more e ort has been put into the study of automatic object trajectory planning. This paper discusses how to plan large-scale object reorientation with nger...

Many studies have demonstrated that Wireless Fidelity (Wi-Fi) networks can detect human behavior due to the development of wireless devices and detecting methodologies. Human activity recognition applied Channel State Information (CSI) in commercial Wi-Fi devices, which has many practical applications. This paper aims present a method for recognizing uses enhanced Wi-Fi-based CSI signals. At fi...

‎A module $M$ is called FI-extending if every fully invariant submodule of $M$ is essential in a direct summand of $M$‎. ‎It is not known whether a direct summand of an FI-extending module is also FI-extending‎. ‎In this study‎, ‎it is given some answers to the question that under what conditions a direct summand of an FI-extending module is an FI-extending module?