With the advent of several advanced difficult-to-cut materials, and with the availability of heat resistant tool materials has posed a great challenge in industries. Hardened steel is one of these difficult-to-cut materials. During the last few decades numerous studies have been conducted to improve the machinability of these materials and many lar

Nickel-based, creep-resistant, superalloy Inconel 718 is amongst the most difficult alloys to machine. The main reason for the poor machinability of the alloy is the high work-hardening rate by the precipitation of a γ’ phase and the presence of hard abrasive phases such as titanium carbide, niobium carbide and the Ni3AlTi phase. Generally, incr

Chatter is an abnormal tool behaviour which it is one of the most critical problems in machining process and must be avoided to improve the dimensional accuracy and surface quality of the product [1]. The most critical limitation in machining productivity and part quality is the occurrence of the instability phenomenon called regenerative chatter [

Introduction: As COVID-19 Pandemic hit across the globe, the closure of higher institutions and the shifting to online platform has become the stress factors related to learning activities for the nursing students. Hence, this study was conducted among Malaysian undergraduate nursing students to determine the level of perceived stress and to examin

This Antioxidant activity and phenolic compound was found in Justicia gendarussa (JG) via total phenolic content (TPC) and α,α-diphenyl-β-pycrilhydrazil hydrate (DPPH) radical scavenging assays. The assays were applied on aqueous and methanolic extracts of leaves, callus culture and cell suspension culture of JG. Callus was induced from green an

Antioxidant activity and phenolic compound was found in Justicia gendarussa via total phenolic content (TPC) and �,�-diphenyl-�-pycrilhydrazil hydrate (DPPH) radical scavenging assays. The assays were applied on aqueous and methanolic extracts of leaves, callus culture and cell suspension culture of J. gendarussa. Callus was induced from gree

Cancer is a disease which known throughout the world. There are many available commercial and alternative treatments to treat cancer. Mango (Mangi(era indica L) is one the popular tropical fruits found in Malaysia. Mango is a wide variety that can easily be found in this country. It is known for its vibrant flesh colour, juicy texture, sweet flavou

Chatter is an unwanted phenomenon in machining due to its adverse effects on the product quality, operation cost, machining accuracy, tool life, machine-tool bearings, and machine-tool life. The term defines the self-excited violent dynamic motion between the cutting tool and work piece [1]. During high speed machining of steel, large amount of ene

Nanosilika dan nanoziolit yang disintesis dari sekam padi telah dikaji bagi mengenalpasti potensi bahan ini sebagai membran nanofilter berkos rendah sebagai alternatif untuk menggantikan membran nilon yang digunakan dalam sampel “nanoparticle respiratory deposition” (NRD) untuk menangkap nanopartikel titanium dioksida (TiO2) di udara. Oleh kera

Cutting tools are subjected to severe stress-strain conditions due to cutting forces, heat generated and vibrations caused during machining. These conditions affect the overall performance of the tool. Wear is the major concern in metal cutting and since it affects the productivity and dimensional accuracy of the machined part. Intensive chatter vi