Investigation of Q-switched and mode-locked erbium-doped fiber laser using graphene oxide-saturable absorber by Hamida, Belal Ahmed, Eltaif, Tawfig, Omer, Mahamat, Khan, Sheroz

“…The GO-SA chip is a chip placed as a sandwich between two fiber ferrules and incorporates a ring laser cavity to generate a pulse train. Results indicate that the cavity of passive Q-switching EDFL is capable of providing pulses at 1532nm with a pulse width within a range of 5.32μs to 2.6μs, a repetition rate of 59.5kHz to 71.74kHz, a pulse energy of 364.64nJ to 668.95nJ, and an output power ranging from 0.062mW to 0.136mW, when the configuration is pumped by a 980nm laser diode, the power of which gradually increases from 21.7mW to 47.9mW. …”
Get full text
Get full text

Bioremediation of polycyclic aromatic hydrocarbons by bacterial strains isolated from petroleum contaminated soil by Mustaffa, Nooraidah, Jamal, Parveen, Saheed, Olorunnisola Kola, Kabashi, Nassereldeen A., Ali, Fathilah, Othman, Rashidi, Redzwan, Ghufran

“…All the twelve isolated bacteria and a commercially available bacteria, Pseudomonas Putida (PP) were then tested on their ability to degrade PAH by using phenanthrene (a three ring polycyclic PAH) which selected to be the model polycyclic PAH. …”
Get full text

Hybrid approach based on partitioned and global scheduling for weakly hard real-time tasks by Ismail, Habibah

Get full text

Synthesis and structural analysis of [alpha]-aminophosphonic acids and their phosphonate ester derivatives by Lee, Rosalind Jane

“…The effects of the aromatic ring currents exerted by the extended aromatic substituents were investigated. …”
Get full text

Influence of thickness on tunability performance of plasma sputtered indium tin oxide as Q-switcher by Zalkepali, N U H H, Mahmud, N N H E N, Awang, N A, Muhammad, N A M, Zamri, A Z M

“…Employing the tunable bandpass filter in the laser ring cavity gives the wide-tuning of the wavelength range of 19.69 nm, 31.86 nm, and 36.59 nm for the thickness of 17.80 nm, 30.70 nm, and 38.90 nm, respectively. …”
Get full text

Investigation of green foamed concrete incorporating palm oil fuel ash and eggshell ash as partial cement replacement by Ahmed Jhatial, Ashfaque

“…The effect of partial replacement on the workability was determined by J-ring test, mechanical properties such as, compressive and tensile strengths as well as modulus of elasticity and thermal performance of GFC was determined by thermal conductivity and surface temperature. …”
Get full text
Get full text
Get full text

Prediction of sedimentation and bank erosion due to the construction of Kahang Dam by Nda, Muhammad

“…This research used the Artificial Neural Network (ANN) and ANN with Autoregressive (AR) (NNETAR) in predicting suspended sediment concentration using sediment concentration, discharge and water level as inputs. Similarly, erosion pins were installed on four transects to monitor the riverbank for thirteen months. …”
Get full text
Get full text
Get full text

Candida rugosa lipase supported on biomass-based nanocellulose-silica hybrid polyethersulfone membrane for synthesis of pentyl valerate by Elias, Nursyafiqah

Get full text

Integrity assessment of buried pipe in erosive environment by Abdul Majid, Zulkifli

Get full text

Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture by Lit, Asrani

Get full text

Developing a framework of non-fatal occupational injury surveillance for risk control in palm oil mills by Ruslan, Rumaizah

“…Analysis of logistic regression indicated that working in shift, not wearing protective gloves, health problems such as shortness of breath and ringing in ears, and excessive noise level (≥ 85 dB[A]) were the risk factors of NFOI in palm oil mills among OP workers. …”
Get full text
Get full text
Get full text

Cellulase aided extraction and characteristics of sulfated polysaccharides from Brown seaweed (Turinaria turbinata) by Hammed, Ademola Monsur, Simsek, Senay, Jaswir, Irwandi, Amid, Azura, Alam, Md. Zahangir

“…Proton NMR signals showed that the spectra of TtF2 and TtF3 possessed α-anomeric proton (5– 5.6 ppm), ring proton (3.4 – 4.4), O-acetyl group (2.2 ppm) and methyl proton (1 – 1.3 ppm). …”
Get full text

Synthesis and characterization of metals doped on fibrous silica zeolites for benzene alkylation with methanol by Abdul Rahman, Anis Farhana

Get full text

A millimeter wave reflectarray antenna with tilted side patch elements for fifth generation communication systems by Dahri, Muhammad Hashim

Get full text

Studies of 1,2-naphthoquinone mono-oximato complexes by Musa, Yusuf

“…The oxidation involved oxidative cleavage of the aromatic ring of catechol by molecular oxygen to give muconic acid anhydride and 2H-pyran-2-one in addition to benzoquinone. …”
Get full text

Novel narrowband microstrip filters for wireless communications systems by Farhat, Mohamad

“…The various ‘C-shape’ open-loop ring resonators were developed and fabricated, namely ‘Embedded-Square’ and ‘Embedded-Triangle’ resonators, exhibited a quasielliptic function bandpass filter response free from spurii across an ultra-wide bandwidth. …”
Get full text

Islamizing engineering curriculum by Shuriye, Abdi Omar

“…My contention in this paper is to establish the compatibility of the two streams, science and religion, as the justi$ring evidence of both holds identical caliber, an account that indicates the impossibility of ones existence without the other. …”
Get full text

Studies of complexes derived from 5-acetylamino-1,2-benzoquinone 2-oxime and related ligands by Barjesteh, Hengameh.

“…For all complexes i.r. studies indicate the involvement of the ring CO in bonding. Their electronic spectra show strong absorption in the u.v. region which tails into the visible but d - d transitions have been clearly Identified for Ni(5-Acqo)2.6H20 and Mn(5-Acqo)3 .H20. …”
Get full text

Microwave absorber based on biocomposites derived from agricultural wastes with reinforcement of poly lactic acid by Baharudin, Elfarizanis

“…The fibers samples are prepared in 0.3 mm particle size, meanwhile the polymer and biocomposites are in ring shaped forms using mix and blend process and injection moulding. …”
Get full text

Application of functionally graded materials for severe plastic deformation and smart materials: experimental study and finite element analysis by Jamian, Saifulnizan

“…The thick�walled pressure vessel was replaced by a system of discrete rectangular cross-section ring elements interconnected along circumferential nodal circles. …”
Get full text