Fluid flow analysis of gas flow in oil and gas pipeline by Muhammad ‘Imran, Zainal Abdin

“…Modal analysis is done by attaching an accelerometer at different place of the rig and then knocks the rig by using impact hammer to simulate external forces. …”
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Mobile smart door security system by Cha Hweay Rhunn, Tommy, Anis Farihan, Mat Raffei, Nur Shamsiah, Abdul Rahman

“…Hence, a smart door security system using a secret knock as well as mobile application are developed to resolve the problem. …”
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Measurement of vertical electric fields from lightning flashes using parallel plate antenna by Wan Ismail, Ibrahim, Mohd Riduwan, Ghazali, Suliana, Ab Ghani, Z.A., Malek

“…Lightning strikes can kill people, knock out radio communication, electrical power devices, and destroy houses, trees as well as animals. …”
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The real-time interaction model for transient mode investigations of a dual-piston free-piston engine generator by M. Razali, Hanipah, Mikalsen, R., Roskilly, A.P.

“…Predictive stroke control and knock detection capability are the main contribution of the real-time interaction model presented in this paper for realistic transient operation investigation and performance prediction of the dual-piston free-piston engine generator.…”
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A hybrid of particle swarm optimization and minimization of metabolic adjustment for ethanol production of escherichia coli by Lee, Mee K., Mohd Saberi, Mohamad, Choon, Yee Wen, Kauthar, Mohd Daud, Nurul Athirah, Nasarudin, Mohd Arfian, Ismail, Zuwairie, Ibrahim, Suhaimi, Napis, Sinnott, Richard O.

“…Several gene knockout strategies like OptKnock and OptGene have been proposed previously. …”
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In silico gene knockout prediction using a hybrid of Bat algorithm and minimization of metabolic adjustment by Man, Mei Yen, Mohd Saberi, Mohamad, Choon, Yee Wen, Mohd Arfian, Ismail

“…As a result, the aim of this paper is to propose a combination of the Bat algorithm and the minimization of metabolic adjustment (BATMOMA) to predict which genes to knock out in order to increase the succinate and lactate production rates in Escherichia coli (E. coli).…”
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Experimental study of alternative tire pyrolysis oil performance operating in single cylinder diesel engine by Mohammad Shafei, Ramli

“…In diesel fuel engine there are commonly problem that can be occur which is knocking effect and ignition delay. This thesis then will explain detail about the effect of this problem to performance of diesel engine.…”
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Structural dynamic analysis of oil and gas transmission pipe by Wan, Dong Hua

“…Lastly to start the experiment by the impact hammer knock the pipeline system, and then collect the data of natural frequencies, mode shapes and damping of the structural dynamic of the pipeline system. …”
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Eco-Process Innovation Performance: Production Waste Investigation through Discrete Event Simulation by Suziyana, Mat Dahan, Sha'ri, Mohd Yusof

“…As many recent eco-innovation studies focusing on perceptual approach of investigating the performance indicators, new study opportunity knocked the door for new knowledge disclosure of operational approach, since it has been largely ignored. …”
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Effect of Fuel Oil - Gasoline Fusel Blends on the Performance and Emission Characteristics of Spark Ignition Engine: A Review by Awad, Omar I., R., Mamat, Obed M., Ali, I. M., Yusri

“…It was seen that when fusel oil – gasoline blend used at almost the engine torque and specific fuel consumption increased, Also HC and CO emissions averagely increased. Furthermore knocking and nitrogen oxides NOx were decreased .Moreover volumetric efficiency and octane number increases with the increase in percentage of fusel oil in blend tests. …”
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Enhancement of Ethanol Production Using a Hybrid of Firefly Algorithm and Dynamic Flux Balance Analysis by Wan, Ting Leong, Mohd Saberi, Mohamad, Kohbalan, Moorthy, Yee, Wen Choon, Hasyiya Karimah, Adli, Khairul Nizar Syazwan, W. S. W, Loo, Keat Wei, Nazar, Zaki

“…However, owing to the structure of the regulatory cellular and metabolic network, identifying specific genes to be knocked out is difficult. The development of optimization algorithms often confronts issues such as easily trapping in local maxima and handling multivariate and multimodal functions inefficiently. …”

Adsorption treatment of monoethanolamine (MEA) wastewater from oil and gas industry by Mohd Najib, Razali

“…There are many instances in which during operation, the solution overshoot and mix with condensed water in the knock-out drum. At this point, all the solution (the contaminated solution and the condensed water) is discharged as wastewater and replaced with fresh solution. …”
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Effect of Primary Reference Fuel on Reactivity-Controlled Compression Ignition Engine Emission Produce by M. F., Zakiyuddin, Muthanna, Jamil, M. A., Hamidi, A. F., Yusop

“…As a result of applying PRF as a low reactivity fuel in an RCCI engine system, knocking resistance may be produced even at high engine compression ratios, resulting in better thermal efficiency and reduced NOx-Soot emissions.…”
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Combustion Parameters of Spark Ignition Engine using Waste Potato Bioethanol and Gasoline Blended Fuels by B., Ghobadian, G., Najafi, R., Mamat, M., Abbasian

“…This better combustion parameters and effrciency suggests that using ethanol as fuel can prevent the pre-mature combustion, and thus improve the anti-knock characteristics…”
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Combined Effect of Boost Pressure and Injection Timing on the Performance and Combustion of CNG in a DI Spark Ignition Engine by Chala, G. T., A. R. A., Aziz, Hagos, F. Y.

“…There is an increasing interest in supercharging spark ignition engines operating on CNG (compressed natural gas) mainly due to its superior knock resisting properties. However, there is a penalty in volumetric efficiency when directly injecting the gaseous fuel at early and partial injection timings. …”
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An Experimental Investigation On The Combustion And Performance Of An HCCI-DI Engine by Hasyuzariza, M. Tobib, A. Aziz, Hairuddin, Nuraini, A. A., M. M., Noor, J., Zulkiple, Mossa, Muntasser A. A.

“…Among the challenges are knocking, limited operating load and difficult to control of ignition timing. …”
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Using Fusel Oil as a Blend in Gasoline to Improve SI Engine Efficiencies: A Comprehensive Review by Awad, Omar I., Ali, Obed Majeed, R., Mamat, Abdul Adam, Abdullah, G., Najafi, M. K., Kamarulzaman, I. M., Yusri, M. M., Noor

“…The hydro-carbon (HC) and carbon monoxide (CO) emissions were averagely increased. Furthermore, knocking and nitrogen oxides (NOx) were observed to decrease when fusel oil was used. …”
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The impacts of compression ratio on the performance and emissions of ice powered by oxygenated fuels: A review by Awad, Omar I., R., Mamat, M. M., Noor, Ibrahim, Thamir K., I. M., Yusri, Ahmad Fitri, Yusop

“…The higher octane rating of oxygenated fuels can endure higher compression ratios before an engine starts knocking, thus giving an engine the ability to deliver more power efficiently and economically. …”
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Development of chitosan based adsorbent for removal of oil from industrial wastewater by Yunus, Rosli Mohd, Razali, Mohd Najib, Jemaat, Zulkifly

“…There are many instances in which during operation, the solution overshoot and mix with condensed water in the knock-out drum. At this point, all the solution (the contaminated solution and the condensed water) is discharged as wastewater and replaced with fresh solution. …”
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Numerical investigation on combustion, performance and emissions characteristics in homogeneous charge compression ignition engine by Hasan, Mohammad Mehedi

“…As a result it is found that this numerical investigation can contribute to the determination of proper fuel mixture and intake temperature for the problems such as extending the HCCI operation range, controlling the combustion, preventing knocking combustion and reduction of CO and HC emissions in HCCI combustion. …”
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