Suchergebnisse

Recent research has focused on the fabrication freedom of 3D printing to not only create conceptual models but final end-use products as well. By democratizing the manufacturing process, products will inevitably be fabricated locally and with unit-level customization. For 3D printed end-use products to be profoundly meaningful, the fabrication technologies will be required to enhance the structures with additional features such as electromechanical content. In the last decade, several research groups have reported embedding electronic components and electrical interconnect into 3D printed structures during process interruptions. However, to date there appears to be an absence of fabricated devices with electromechanical functionality in which moving parts with electronic control have been created within a single Additive Manufacturing (AM) build sequence. Moreover, previously reported 3D printed electronics were limited by the use of conductive inks, which serve as electrical interconnect and are commonly known for inadequate conductivity. This paper describes the fabrication of a high current (>1 amp) electromechanical device through a single hybrid AM build sequence using a uPrint Plus, a relatively low cost 3D. Additionally, a novel integrated process for embedding high performance conductors directly into the thermoplastic FDM substrate is demonstrated. By avoiding low conductivity inks, high power electromechanical applications are enabled such as 3D printed robotics, UAVs and biomedical devices. ; Mechanical Engineering

Through the various stages of human evolution and its need to commemorate His daily and military events, and when he became more related to his religious the Ancient Egyptian human needs to engrave and record all his daily events and works which he used to do daily in belief from him that it will be the guide to him in next life after death. More than five thousand years ago, the results of long experiences of the first human attempts to write in the Middle East crystallized. Through that and in recognition of the great importance of this invention the researchers have distinguished between two periods of human history. The first one is pre writing stage which called The stage of oral civilization also called the prehistoric period. the second period is writing stage which called the stage of history. The ancient Egyptian thought that they learn writing from God "Thoat" the lord of science , and there is many evidence which prove that the first innovation for writing was appear first at the Delta before Upper Egypt . We don't know exactly when the ancient Egyptian innovate the writing but we know that the first family began around 31 st century BC and this family considered the first step in building the ancient Egyptian civilization and the hieroglyphic writings appeared in that period, but we think that the trying of ancient Egyptians to write has appeared before first family about two centuries ago. The Research Problem: How to take advantage of ancient Egyptian writings due to the aesthetic and artistic value to enrich the design field specially design of one piece printing for ladies fabric also knowing the difference between the various types of writings and introduce the new aesthetic values in ancient Egyptian civilization to the world. Research Aims: Introducing the uses of ancient Egyptian writings and the methods which used in writing, Make focus on Hieratic, Coptic and Demotic writings and showing their uses., Inspiring designs from ancient Egyptian writing to design one piece printing for ladies fabric. Research Results: The difference between ancient Egyptian writings of various kinds (Hieroglyphic, Hieratic, Demotic, Coptic and Discover the aesthetics of the four Egyptian Writings and the uses of each line in addition to creating designs of one-piece of printing for ladies fabrics which inspired by ancient Egyptian writings.