نتایج جستجو برای: ماشین های cnc
تعداد نتایج: 482817 فیلتر نتایج به سال:
Hands-on laboratory instruction is essential to improve student learning in engineering education. In the area of CAD/CAM/Manufacturing Technology lab courses, the high cost of commercial CNC machines like mills and lathes limits the quantity of machines accessible to the students. In this paper, a low-cost, build-your-own (BYO) three axis vertical computer numerical control (CNC) mill prototyp...
In the domain of manufacturing, computer numerically controllers (CNC) technology is a major contributor to the production capacity of the enterprises. The advances in CNC technology coupled with enhancements in computing systems have provided the basis to re-examine the way in which computer-aided systems (CAx) can be used to enable global manufacturing. Interoperability of the various compone...
In Caenorhabditis elegans, the predicted transcription factor SKN-1 is required for embryonic endodermal and mesodermal specification and for maintaining differentiated intestinal cells post-embryonically. The SKN-1 DNA-binding region is related to the Cap'n'Collar (CNC) family of basic leucine zipper proteins, but uniquely, SKN-1 binds DNA as a monomer. CNC proteins are absent in C. elegans, h...
We have isolated two related Xenopus homologues of the homeotic zinc finger protein Teashirt1 (Tsh1), XTsh1a and XTsh1b. While Drosophila teashirt specifies trunk identity in the fly, the developmental relevance of vertebrate Tsh homologues is unknown. XTsh1a/b are expressed in prospective trunk CNS throughout early neurula stages and later in the migrating cranial neural crest (CNC) of the thi...
CNC Machines in heavy power plants have an important part to play. CNC stands for "Computer Numerical Control." A CNC machine directs a cutting tool, which may range from a small scalpel to a woodcutting blade or router, based on directions that the operator has entered into a computer that controls the movement of the head holding the cutter. A Programmable Logic Controller (PLC) is a microcon...
Chen, Si. Ph.D., Purdue University, May 2015. Experimental and Modeling Investigation of Cellulose Nanocrystal Polymer Composite Fibers. Major Professor: R. Byron Pipes. Cellulose nanocrystals (CNCs) are a class of newly developed and sustainable nanomaterial derived from cellulose-based materials such as wood. There have been substantial research efforts to utilize these materials as reinforci...
Problem statement: Surface roughness is a major consideration in modern Computer Numerical Control (CNC) turning industry. Most existing optimization researches for CNC finish turning were either accomplished within certain manufacturing circumstances, or achieved through numerous equipment operations. Therefore, a general deduction optimization scheme is deemed to be necessary for the industry...
39 The accessible treatment options for life-threatening neglected visceral leishmaniasis (VL) 40 disease have problems regarding efficacy, stability, adverse effects and cost, making treatment a 41 complex issue. Herein, we formulated nanometric amphotericin B (AmB) encapsulated chitosan42 nanocapsules (CNC-AmB) using polymer deposition technique mediated by nano-emulsion 43 template fabricati...
Intelligent knowledge based system (IKBS) is developed for optimizing dry CNC turning process using Taguchi method, CNC Machine, EN19 steel as the work piece material, andCutting Insert. Tool wear and spindle loading which are the machining parameters, spindle speed, feed rate, and depth of cut, areoptimized through the intelligent knowledge based system (IKBS). The experimental CNC turning mac...
A series of novel bionanocomposites were cast using different contents of zinc oxide-silver nanoparticles (ZnO-AgNPs) stabilized by cellulose nanocrystals (CNC) as multifunctional nanosized fillers in poly(vinyl alcohol)/chitosan (PVA/Cs) matrices. The morphological structure, mechanical properties, ultraviolet-visible absorption, and antimicrobial properties of the prepared films were investig...
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