Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Firman Ridwan"'
Publikováno v:
Materials Science for Energy Technologies, Vol 8, Iss , Pp 24-31 (2025)
Cement manufacturing presents substantial environmental challenges due to the volume of waste generated, including cement ash. Therefore, it is crucial to discover novel methods to utilize cement waste effectively. This study aimed to examine the imp
Externí odkaz:
https://doaj.org/article/7c8ef5b8bea34a2e823ba4dbbb7c426a
Publikováno v:
International Journal of Design & Nature and Ecodynamics. 18:195-200
Publikováno v:
METAL: Jurnal Sistem Mekanik dan Termal. 6:60
Autor:
Roni Novison, Firman Ridwan
Publikováno v:
Borneo Journal of Resource Science and Technology. 8:23-29
This study was aimed to improve the quality of aroma of roasted coffee by using Taguchi's design as experimental technique. The roaster parameters evaluated were temperature, incubation time, moisture content and cylinder rotational speed. An orthogo
Publikováno v:
METAL: Jurnal Sistem Mekanik dan Termal. 5:126
Polymer mixture of polyester and vinyl ester is widely used in engineering fields such as for car bumpers, boat bodies, ultra-light aircraft wings, wind turbine blades and others. One of the requirements to meet the application aspects in the enginee
Autor:
Refki Harvendri, Firman Ridwan
Publikováno v:
METAL: Jurnal Sistem Mekanik dan Termal. 4:1
Milling machine is a machine that cuts a workpiece using a plural chisel that rotates on a freis machine. During the freis process, the material is cut because of the cutting force that occurs between the tool and the workpiece. The amount of cutting
Autor:
Firman Ridwan, Fico Trianda Ravelli
Publikováno v:
METAL: Jurnal Sistem Mekanik dan Termal. 3:51
Several methods have been developed to separate gold from alluvial using the principle of density. Density is used as a basic concept in material separation. One of the supporting methods that can be used to utilize the vortex flow as a separation me
Autor:
Firman Ridwan, Xun Xu
Publikováno v:
Robotics and Computer-Integrated Manufacturing. 29:12-20
Tight quality requirements and stringent customer demands are the main thrust behind the development of new generation machine tool controllers that are more universal, adaptable and interoperable. The development of some international standards such
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 63:1117-1130
The use of adaptive feed rates shortens machining time and increases the potential of efficient machining. Currently, feed rates in an numerically controlled (NC) program are pre-set constant values that are often determined based on the job shop exp
Autor:
Xun Xu, Firman Ridwan
Publikováno v:
Advanced Materials Research. :990-994
The drive for increased productivity, reduced production time and cost, reduced defective parts and relaxed machine design constraints, pushes for real-time control and optimization for machining operations. This vision can be realized if the current