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| 1 | Dynamics and Predictive Control of Gas Phase Propylene Polymerization in Fluidized Bed Reactors显示文摘A two-phase dynamic model,describing gas phase propylene polymerization in a fluidized bed reactor,was used to explore the dynamic behavior and process control of the polypropylene production rate and reactor temperature.The open loop analysis revealed the nonlinear behavior of the polypropylene fluidized bed reactor,justifying the use of an advanced control algorithm for efficient control of the process variables.In this case,a centralized model predictive control(MPC) technique was implemented to control the polypropylene production rate and reactor temperature by manipulating the catalyst feed rate and cooling water flow rate respectively.The corresponding MPC controller was able to track changes in the setpoint smoothly for the reactor temperature and production rate while the setpoint tracking of the conventional proportional-integral(PI) controller was oscillatory with overshoots and obvious interaction between the reactor temperature and production rate loops.The MPC was able to produce controller moves which not only were well within the specified input constraints for both control variables,but also non-aggressive and sufficiently smooth for practical implementations.Furthermore,the closed loop dynamic simulations indicated that the speed of rejecting the process disturbances for the MPC controller were also acceptable for both controlled variables. | Ahmad Shamiri Mohamed azlan Hussain Farouq sabri Mjalli Navid Mostoufi Seyedahmad Hajimolana~ | 2013 | Chinese Journal of Chemical Engineering2013，21，9： | 4 |
| 2 | Polypropylene/polystyrene blends-preliminary studies for compatibilization by aromatic-grafted polypropylene显示文摘 | Syed Mustafa S J Nor Azlan M R Ahmad Fuad M Y | 2001 | J Appl Polym Sci2001，82，： | 1 |
| 3 | Development of granular sludge for textile wastewater treatment显示文摘 | Khalida Muda Azmi Aris Mohd Razman Salim Zaharah lbrahim Adibah Yahya Mark C M van Loosdrecht Azlan Ahmad Mohd Zaini Nawahwi | 2010 | Water Research2010，44，15： | 1 |
| 4 | Ring microfiber coupler erbium-doped fiber laser analysis显示文摘A non-adiabatic microfiber coupler is fabricated by flame brushing technique and then theoretically and experimentally analyzed.The effective length of the microfiber coupler is determined by simulation,and a low-noise laser is demonstrated using various lengths of erbium-doped fiber(EDF) when incorporated in a laser setup.At 18.6-mW input pump power,the maximum output power of 20 μW and the lowest lasing threshold of 3.8 mW are obtained with a 90-cm-long EDF. | Azlan Sulaiman Sulaiman Wadi Harun Harith Ahmad | 2014 | Chinese Optics Letters2014，12，2： | 1 |
| 5 | 流化床反应器中气相丙烯聚合反应的动力学和预测控制(英文)显示文摘 | Ahmad Shamiri Mohamed azlan Hussain Farouq sabri Mjalli Navid Mostoufi Seyedahmad Hajimolana | 2013 | Chinese Journal of Chemical Engineering2013，，09： | 1 |
| 6 | Development of granular sludge for textile wastewatertreatment 显示文摘 | Khalida Muda Azmi Aris Mohd Razman Salim Zaharah Ibrahim Adibah Yahya Mark C M van Loosdrecht Azlan Ahmad Mohd ZainiNawahwi | 2010 | Water Research2010，44，： | 1 |
| 7 | Polypropylene/polystyrene blends-preliminary stud-ies for compatibilization by aromatic-grafted polypropyl-ene显示文摘 | Mustafa S S J Nor Azlan M R Ahmad Fuad M Y etal | 2001 | Journal of Applied Polymer Science2001，82，： | 1 |
| 8 | Polypropylene/polystyrene blends-preliminary studies for compatibilization by aromatic-grafted polypropylene 显示文摘 | SYED MUSTAFA S J NOR AZLAN M R AHMAD FUAD M Y | 2001 | J Appl Polym Sci2001，82，2： | 1 |
| 9 | Polypropylene/polystyrene blends-preliminary studies for compatibilization by aromatic-grafted polypro- pylene显示文摘 | SYED MUSTAFA S J NOR AZLAN M R AHMAD FUAD M Y | 2001 | J Appl Polym Sci2001，82，： | 1 |
| 10 | A Preliminary Assessment of Load Consumption and Solar Power Potential at Kota Belud,Sabah显示文摘This paper presents a detailed preliminary assessment of load consumption and solar power potential at the Eco-Tourism Centre of Liogu Ku Silou-Silou(EPLISSI),Kota Belud,Sabah.This initial investigation assessed the feasibility of an off-grid solar PV system at EPLISSI with a suitable solar panel system for project installation and commissioning purposes.Due to the absence of an electrical grid and power supply,no pre-existing electrical appliances could be found in EPLISSI.Hence,an excel-based software,the ESCoBox,was used to produce the load profiles.The input data for this software came from a list of required electrical appliances(LED lights,fans,and phone chargers)and the historical frequency of visitors to EPLISSI.Meanwhile,to assess the solar power potential at EPLISSI,an online simulator known as Global Solar Atlas version 2.3 or GSA 2.3 was used.As an input for the GSA 2.3,the initial solar panel system capacity was set for 0.5 kWp,and then an increment of 0.1 kWp was entered until specific criteria were met.The selection of the suitable size is made when the system can satisfy the daily total average load demand and a specific load fulfillment demand.As a result,it was found that the site requires a total average demand and a total peak demand of 4.60 and 11.87 kWh/day,respectively.From the GSA 2.3 generated report,an off-grid solar PV system with the capacity of 2.50 kWp solar PV can satisfy the daily total average load demand of this area,where the average PV energy output is within the range of between 7.74–9.80 kWh/day or an average of 8.72 kWh/day.In conclusion,this preliminary assessment indicates that installing an off-grid solar PV system in this area is possible. | Maryon Eliza Matius Mohd Azlan Ismail Adriana Erica Amaludin Yan Yan Farm Mohd Adzrie Radzali Ahmad Fazlizan Wan Khairul Muzammil | 2022 | Energy Engineering2022，119，4： | 1 |
| 11 | Human Stress Recognition from Facial Thermal-Based Signature:A Literature Survey显示文摘Stress is a normal reaction of the human organism which triggered in situations that require a certain level of activation.This reaction has both positive and negative effects on everyone’s life.Therefore,stress management is of vital importance in maintaining the psychological balance of a person.Thermal-based imaging technique is becoming popular among researchers due to its non-contact conductive nature.Moreover,thermal-based imaging has shown promising results in detecting stress in a non-contact and non-invasive manner.Compared to other non-contact stress detection methods such as pupil dilation,keystroke behavior,social media interaction and voice modulation,thermal-based imaging provides better features with clear boundaries and requires no heavy methodology.This paper presented a brief review of previous work on thermal imaging related stress detection in humans.This paper also presented the stages of stress detection based on thermal face signatures such as dataset type,thermal image face detection,feature descriptors and classification performance comparisons are presented.This paper can help future researchers to understand stress detection based on thermal imaging by presenting the popular methods previous researchers use for stress detection based on thermal images. | Darshan Babu L.Arasu Ahmad Sufril Azlan Mohamed Nur Intan Raihana Ruhaiyem Nagaletchimee Annamalai Syaheerah Lebai Lutfi Mustafa M.Al Qudah | 2022 | Computer Modeling in Engineering & Sciences2022，，2： | 1 |
| 12 | Descriptive assessment on diabetic retinopathy screening in an awareness programme in Malaysia显示文摘AIM:To determine the prevalence of diabetic retinopathy(DR)among diabetic patients at the primary health clinics in Selangor,Malaysia.METHODS:All diabetic patients were screened in Retinal Disease Awareness Programme(RDAP)and those who had significant DR changes were referred to the hospital for further management.Descriptive analyses were done to determine the prevalence of DR and sociodemographic characteristics among patients with diabetic.Univariate and multivariable analysis using Logistic regression were performed to find association and predictor factors in this screening.RESULTS:A total of 3305 patients aged 40y and above were screened for DR.Ofthe patients screened,9%patients were found to have DR and other visual complication such as maculopathy(0.9%),cataract(4.8%)and glaucoma(0.4%).The mean age of patients without retinopathy was 57.82±8.470y and the mean age of patients with DR was 63.93±9.857y.About 61.5%of the patients screened were aged below 60y and 38.5%were aged 60y and above.Majority of the patients screened were women 58.5%and Malay in the age group of 50-59y,while 27%were aged 60-69y.Significant association were found between age,sex,race,visual loss and DR.CONCLUSION:Although the prevalence of DR among patients is not alarming,effective interventions need to be implemented soon to avert a large burden of visual loss from DR. | Nor Fariza Ngah Nor Asiah Muhamad Zalifa Zakiah Asnir Roslin Azni Abdul Aziz Zaidah Mhad Kassim Siti Aishah Sahar Nor Azita Ahmad Tarmidzi Chan Li Yen Rosmawati Uthman Narjis Satar Noor Zahirah Husain Azian Adnan John Mathen Kayalakakathu Bariyah Kadas Noor Suriani Mohamad Shaiful Azlan Kassirn | 2020 | International Journal of Ophthalmology(English edition)2020，13，11： | 0 |
| 13 | Fuzzy logic controller implementation on a microbial electrolysis cell for biohydrogen production and storage显示文摘This work presents the implementation of fuzzy logic control(FLC) on a microbial electrolysis cell(MEC).Hydrogen has been touted as a potential alternative source of energy to the depleting fossil fuels. MEC is one of the most extensively studied method of hydrogen production. The utilization of biowaste as its substrate by MEC promotes the waste to energy initiative. The hydrogen production within the MEC system, which involves microbial interaction contributes to the system's nonlinearity. Taking into account of the high complexity of MEC system, a precise process control system is required to ensure a wellcontrolled biohydrogen production flow rate and storage application inside a tank. Proportionalderivative-integral(PID) controller has been one of the pioneer control loop mechanism. However, it lacks the capability to adapt properly in the presence of disturbance. An advanced process control mechanism such as the FLC has proven to be a better solution to be implemented on a nonlinear system due to its similarity in human-natured thinking. The performance of the FLC has been evaluated based on its implementation on the MEC system through various control schemes progressively. Similar evaluations include the performance of Proportional-Integral(PI) and PID controller for comparison purposes. The tracking capability of FLC is also accessed against another advanced controller that is the model predictive controller(MPC). One of the key findings in this work is that the FLC resulted in a desirable hydrogen output via MEC over the PI and PID controller in terms of shorter settling time and lesser overshoot. | Gabriel Khew Mun Hong Mohd Azlan Hussain Ahmad Khairi Abdul Wahab | 2021 | Chinese Journal of Chemical Engineering2021，34，12： | 0 |
| 14 | Enhanced Mask R-CNN for herd segmentation显示文摘Livestock image segmentation is an important task in the field of vision and image processing.Since utilizing the concentration of forage in the grazing area with shielding the surrounding farm plants and crops is necessary for making effective cattle ranch arrangements,there is a need for a segmentation method that can handle multiple objects segmentation.Moreover,the indistinct boundaries and irregular shapes of cattle bodies discourage the application of the existing Mask Region-based Convolutional Neural Network(Mask R-CNN)which was primarily modeled for the segmentation of natural images.To address this,an enhanced Mask R-CNN model was proposed for multiple objects instance segmentation to support indistinct boundaries and irregular shapes of cattle bodies for precision livestock farming.The contributions of this method are in multiple folds:1)optimal filter size smaller than a residual network for extracting smaller and composite features;2)region proposals for utilizing multiscale semantic features;3)Mask R-CNN’s fully connected layer integrated with sub-network for an enhanced segmentation.The experiment conducted on pre-processed datasets produced a mean average precision(mAP)of 0.93,which was higher than the results from the existing state-of-the-art models. | Rotimi-Williams Bello Ahmad Sufril Azlan Mohamed Abdullah Zawawi Talib | 2021 | International Journal of Agricultural and Biological Engineering2021，14，4： | 0 |
| 15 | Mathematics Remediation for Indigenous Students With Learning Difficulties" Does It Work?显示文摘 | Poon Cheng Yong Yeo Kee Jiar Noor Azlan Ahmad Zanzali | 2012 | US-China Education Review(A)2012，2，12： | 0 |
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