检索结果-内蒙古大学图书馆

IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)

作者： Siti Nurshaheera Shaharuzzaman Fazida Hanim Hashim Mohd Shaiful Sajab Aqilah Baseri Huddin Department of Electrical Electronic and Systems Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bandar Baru Bangi Selangor Malaysia Research Centre for Sustainable Process Technology (CESPRO) Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia

Palm oil is a stable vegetable oil with various uses in both the food and non-food industries. The quality of edible palm oil is measured by its content of free fatty acids (FFA), which should be below 5% to be safely consumed and used, according to The Palm Oil Refiners Association of Malaysia (PORAM). Current titration methods require that the oil sample be dissolved in neutralized ethanol/diethyl, which is a long process that can damage the sample and cause delays and losses in the process. The focus of this study is to analyze the FFA in palm oils based on the Raman spectra of palm oil samples and oil palm fruitlets. Four samples of commercially available palm oils of different qualities, as well as 47 samples of oil palm fruitlets, were used in this study. The Raman spectra of all samples were collected via point scanning using a confocal microRaman imaging spectrometer with a 532 nm laser source. Manual spectrum pre-processing was performed with baseline correction and data filtering using Savitzky-Golay filters. Possible FFA peaks characteristics on the Raman spectrum were then identified through signal interpolation, signal deconvolution, and curve fitting. Statistical analysis was conducted on the extracted features to remove those with low statistical values, thus helping the machine learning algorithms to train the classifier models more efficiently. From this study, it was found that peaks at 1155 cm −1 , 1525 cm −1 , 1440 cm −1 , and 1655 cm −1 from the Raman spectrum were highly correlated with the FFA levels of palm oils obtained through titration. The peak ratios of 1525 cm −1 /1655 cm −1 and 1155 cm −1 /1655cm −1 also showed a good and fast relationship for analyzing the FFA content of palm oil.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Fabrication and characterization of electrospun κ-carrageenan based oral dispersible film with vitamin C

引用

Materials Today: Proceedings 2023年

作者： Sapiee, Nurul Haiza Saufi, Muhammad Hasif Mat Bakar, Noor Fitrah Abu Adam, Fatmawati 40450 Shah Alam Selangor Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuh Persiaran Tun Khalil Yaakob 26300 Kuantan Pahang Malaysia

Oral dispersible films (ODF) are great alternatives to tablet medications as they will simply dissolve in the mouth. There are several ways to produce ODFs, but electrospinning is emerging as one of the best methods as it increases the surface to volume ratio which allows it to dissolve easily. ODFs are typically formulated using a combination of polymers to produce the necessary film qualities. The use of κ-carrageenan (κ), a natural polymer in ODFs are yet to be studied in detail. Therefore, this study aims to develop an ODF from a combination of κ-CAR, polyvinyl alcohol (PVA) and vitamin C, where the latter will act as a model drug carrier. 1.5w/v% κ-CAR and 14w/v% PVA at a ratio of 30:70 was added with different concentrations of vitamin C from 2 to 10w/v%, respectively. The resulting nanofibers were then examined for morphology, water contact angle (WCA) and disintegration time. All the solutions formed uniform nanofibers with an average diameter ranging from 190 to 490 nm and showed hydrophilic properties. Sample 4 showed the fastest disintegration time of 3.68 s and the lowest WCA of 38.5°. The results indicated that the best formulation for an ODF was with 8% vitamin C. The findings from this study provide promising groundwork for the use of κ-CAR as the biopolymer in combination with the PVA to develop a biopolymer-based ODF with vitamin C via electrospinning. © 2023 Elsevier Ltd. All rights reserved.

关键词： Polyvinyl alcohols

来源：评论

学校读者我要写书评

暂无评论

Facile synthesis of fibrous Faujasite y supported Ni (Ni/FFY) catalyst for hydrogen production via glycerol dry reforming 6

Facile synthesis of fibrous Faujasite y supported Ni (Ni/FFY...

引用

6th National Conference on Postgraduate Research, NCON-PGR 2022

作者： Abdullah, N. Ainirazali, N. Setiabudi, H.D. Ideris, A. Mohamed, A.R. Jalil, A.A. Universiti Malaysia Pahang Gambang26300 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Gambang26300 Malaysia School of Chemical Engineering Universiti Sains Malaysia Engineering Campus Seberang Perai Selatan Nibong Tebal14300 Malaysia Johor Bahru81310 Malaysia Johor Bahru81310 Malaysia

In this study, the dendritic structure of Ni-supported Fibrous Faujasite Y (Ni/FFY) catalyst was successfully synthesized by employing a hydrothermal-assisted microemulsion system and subsequently tested in glycerol dry reforming to produce syngas. FFY possesses high porosity due to the formation of radial wrinkle fibre observed from TEM analysis. This provides a huge amount of interparticle pores that facilitate the absorption of the molecules within the material under a minimum hindrance, hence boosting the interior surface accessibility of Ni/FFY. This exclusive morphology contributed to the enhancement in the amount of accessible Ni active sites, resulting in the good activity of Ni/FFY (C3H8O3conversion = 56.28 %, CO yield = 70.14 %, and H2yield = 49.80 %). The extraordinary physicochemical properties of Ni/FFY and outstanding catalytic performance in glycerol dry reforming proved its capability as a sustainable catalyst in transforming waste byproduct (glycerol) and greenhouse gas (CO2) to clean energy (H2). This finding presents a pioneering fibrous zeolite catalyst for hydrogen generation in glycerol reforming. © 2022 Elsevier Ltd. All rights reserved.

关键词： Microemulsions

来源：评论

学校读者我要写书评

暂无评论

Investigation of Effective Microorganism (Em-Mudball) in Raw Water Treatment 3

Investigation of Effective Microorganism (Em-Mudball) in Raw...

引用

3rd Innovative Manufacturing, Mechatronics and Materials Forum 2022, iM3F 2022

作者： Azwan Bin Azmi, Muhammad Ariff Bin Razali, Mohd Najib Mohd Ramli, Najmuddin Bin Obi, Nasreldeen Ishag Anuar, Amira Ermafiqka Chemical Engineering Department College of Engineering Universiti Malaysia Pahang Pahang Gambang26300 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Pahang Gambang26300 Malaysia MNR Multitech Sdn Bhd K02 Ground Floor Kompleks UMP Holdings Pahang Gambang26300 Malaysia

ISBN: (数字)9781839537813

ISBN: (纸本)9781839538063

EM-mudball is a green technology product used to treat raw water by using effective microorganisms. The use of EM-mudball can alter the compositions of prop- erties in raw water and improve water quality. Three different EM-mudball ratios were created out of soil/clay, Bokashi compost, and EM 1 compositions in 1:1:1, 1:2:1, and 1:2:2 ratios, *** mudball undergoes the characterization test to observe the presence of fungi and bacteria. Additional 2 different ratios of EM-Mudball were bought from the market as to compare its performance. This mudball was tested into two different raw water samples, taken from a river and a well. Two liters of each raw water types were put in a plastic container and tested with the EM-mudball. Then, the mudball was set in the raw waters for 14 days for the effective microorganisms to react. The best result from the analysis of well water is from Industrial B and simula- tion 1 EM-mudball based on 6 parameters and the biochemical oxygen demand (BOD) value reduction is 3.92 mg/L and 4.68 mg/L respectively, chemical oxygen demand (COD) at 38 mg/L and 44 mg/L respectively, turbidity were 7 and 9 NTU respectively and the pH value was maintained at the optimum value of 7.32 and 7.41 respectively. However, the EM-Mudball is unable to reduce the ammonia Cal nitrogen (AN) and total suspended solids (TSS) and maintain its initial state. In conclusion, as an overall result, this water treatment method is able to improve the quality of water by treating thoseparameters. © 2022 IET Conference Proceedings. All rights reserved.

关键词： Biochemical oxygen demand

来源：评论

学校读者我要写书评

暂无评论

Simulating Brick Production Through Discrete Event Simulation as a Zero-Waste Initiative for Sustainability 2nd

Simulating Brick Production Through Discrete Event Simulatio...

引用

2nd International Conference on Sustainability: Developments and Innovations, ICSDI 2024

作者： Abdul Majid, Mazlina Ahmad, Noormazlinah Abdullah, Aziman M. Noor, Mohazan Abdullah Sani, Syahnizam Faculty of Computing University Malaysia Pahang Al-Sultan Abdullah Pahang Pekan26600 Malaysia Faculty of Chemical & Process Engineering Technology University Malaysia Pahang Al-Sultan Abdullah Pahang Pekan26600 Malaysia Faculty of Computing University Malaysia Pahang Al-Sultan Abdullah Pahang Pekan26600 Malaysia FPG Oleochemicals Sdn Bhd Kuantan Port Industrial Area Pahang Kuantan26080 Malaysia Computer and IT Center Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Pekan26600 Malaysia

ISBN: (纸本)9789819783472

The European Union defines waste as any object that is discarded, intended to be discarded, or required to be discarded, even though it might still have potential use. The quantity of waste generated is escalating daily, posing a significant concern globally. There is no single solution to curtail or prevent this escalation;however, sustainable practices such as reusing and recycling offer the most viable approach. Currently, numerous initiatives focus on recycling waste into diverse products, such as bricks. Notably, the chemical waste, known as sludge, from an Oleochemical industry in Malaysia has shown promising potential for recycling into bricks. Thus, this paper aims to simulate brick production based on industry sludge waste for an upscaling strategy utilizing the Discrete Event Simulation technique. The Discrete Event Simulation (DES) technique was selected due to its suitability for modelling business processes. The simulation process starts by modelling the actual process flow of brick production as a DES model using AnyLogic 6.0. Next, various test scenarios have been simulated to identify bottlenecks and constraints in brick production. The result analysis revealed that the daily consumption of sludge per unit of brick production significantly impacts the process. The quantity of sludge utilized per brick produced was relatively minimal compared to the daily sludge output by the industry. This discovery holds importance in preparing the industry for potential upscaling strategies, facilitating the achievement of the zero-waste target by 2030. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Brickmaking

来源：评论

学校读者我要写书评

暂无评论

Experimental and Computational Insights into the Design of Ph-Responsive Sodium Alginate-Coated Nanoparticles for Targeted Mesalazine Delivery

SSRN

引用

SSRN 2024年

作者： Boutahala, Mokhtar Djerboua, Ferhat Merir, Roufaida Milad, Baitiche Lazzara, Giuseppe Laboratory of Multiphasic Polymeric Materials Department of Process Engineering Faculty of Technology Ferhat Abbas Sétif-1 University Sétif19000 Algeria UniversitàdegliStudi di Palermo Dipartimento di Fiscica e Chimica Viale delle Scienze-Pad.17 90128 Italy Laboratory of Chemical Process Engineering Department of Process Engineering Faculty of Technology Ferhat Abbas Sétif-1 University Sétif19000 Algeria

Halloysite-alginate beads loaded with mesalazine (5-ASA), as a model anti-inflammatory drug, were investigated for their ability to protect the drug against acidic degradation during gastrointestinal transit. X-ray Fluorescence (XRF) Analysis confirmed the composition of the halloysite nanotubes and the Zeta potential analysis corroborated its colloidal stability. Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), and X-ray diffraction (XRD) investigations confirmed the nanocomposite's effective production and shed light on the interactions between its components and crystalline structure. The HNT nanotubes' structure and homogenous size distribution were examined using transmission electron microscopy (TEM). Besides, scanning electron microscopy (SEM) pictures indicated the spherical shape and relatively rough bead *** initial incubation in a simulated gastric medium (pH 1.2), the beads remained unchanged. In contrast, incubation in a simulated intestinal medium (pH 6.8) led to bead swelling, floating, and erosion. As well as, the formulation features a smart, pH-sensitive release mechanism over 750 minutes to achieve 100% drug release, highlighting its potential for sustained and targeted drug delivery. Compared to pure 5-ASA and HNT/5-ASA mixture. 5-ASA release data were well-fitted to the Korsmeyer-Peppas and Higuchi models indicate distinct mechanisms governing 5-ASA release from the composite material. Density Functional Theory (DFT) highlighted specific interactions between 5-ASA and halloysite, characterized by strong hydrogen bonding and Lewis acid-base interactions with aluminol sites, with reduced Van der Waals forces in hydrophobic siloxane regions. © 2024, The Authors. All rights reserved.

关键词： Hydrogen bonds

来源：评论

学校读者我要写书评

暂无评论

Development of Supported Catalyst for Hydrogen Production from Sodium Borohydride

Development of Supported Catalyst for Hydrogen Production fr...

引用

2024 IEEE Global Energy Conference, GEC 2024

作者： Sayilgan, Ahmet Onat, Erhan Ekinci, Selma Izgi, Mehmet Sait Tatvan Vocational School Electricity and Energy Program Bitlis Eren University Bitlis Turkey Organized Industrial Zone Vocational School Electricity and Energy Program Bitlis Eren University Bitlis Turkey Vocational School of Technical Sciences Department of Chemistry and Chemical Process Technology Batman University Batman Turkey Faculty of Engineering Architecture Siirt University Siirt Turkey

ISBN: (纸本)9798331532611

The best solution to the problems caused by fossil fuels and the limitations of renewable energy sources is the conversion of hydrogen into energy in fuel cells. The transportation and storage problems, which are the main obstacles to the conversion of hydrogen into energy in fuel cells, can be overcome by storing hydrogen in boron compounds. The recovery of hydrogen stored in boron compounds when needed is carried out through catalytic processes. In this study, a supported catalyst was synthesized for use in hydrogen production from sodium borohydride (SBH), which is one of the main boron compounds used in the solid storage of hydrogen, and the dehydrogenation parameters of the synthesized catalyst were investigated. In this context, chenopodium botrys plant extract was used as a support material for nickel (Ni) metal atoms. At the end of the extraction carried out through a hydrothermal process, Ni atoms were decorated using the impregnation method in the extract, and the Ni@KBHE catalyst was produced via reduction under SBH. After the washing, filtration, and drying processes were carried out under a nitrogen atmosphere, the solution medium, catalyst amount, SBH concentration, and temperature parameters of SBH hydrolysis with the crumbled catalyst were optimized. Optimum values for hydrogen production were obtained using 5% NaOH, 60 mg of catalyst, and 2% SBH. The hydrogen production rate (HGR) at these values was 4664 mL/g min. As a result of the catalytic reaction kinetic calculations, it was determined that the reaction was nth order, and the reaction activation energy was 49.4 kJ/mol. ©2024 IEEE.

关键词： Activation energy

来源：评论

学校读者我要写书评

暂无评论

Influence of rice husk based nanosilica in rheological and stability of binary mixture fluid

Influence of rice husk based nanosilica in rheological and s...

引用

作者： Mohd Eqhwan Iskandar, Wan Ruey Ong, Huei Maksudur Rahman Khan, Md. Ramli, Ridzuan Faculty of Engineering & Technology DRB-HICOM University of Automotive Malaysia Peramu Jaya Industrial Area Pahang Pekan26607 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Kuantan26300 Malaysia No. 6 Persiaran Institusi Bandar Baru Bangi KajangSelangor43000 Malaysia

In this work, an organic derived nanofluid has been developed from bio-origin resources. Rice husk derived nanosilica has been prepared via a simple two-steps thermal process with minimum energy (low temperature and reaction time) using solar assisted plasma furnace. A low density nanosilica (112.3 kg/m3) has been prepared. The nanosilica was characterized by using TEM and XRD to verify the surface morphology and crystallinity structure respectively. Nanofluids comprised of nanosilica and EG/water binary mixture has been prepared at various concentration such as 0.2 – 1.0 vol% of nanosilica. Flow curve of nanofluids showed that at minimum inclusion of nanosilica enhanced the stress of the fluid significantly. Moreover, dynamic viscosity measure shows that addition of nanosilica stabilized the properties of the fluid compared to virgin fluid. The present product offers greener approach for nanofluids which derived from natural resources and environmentally friendly (very low percentage of nanoparticle, 0.2 vol% equivalent to 0.0215 wt%). Apart from that, the stability and rheological properties fluids were improved with the inclusion of nanoparticle. © 2022

关键词： Binary mixtures

来源：评论

学校读者我要写书评

暂无评论

Engineered porous Ni2P-nanoparticle/Ni2P-nanosheet arrays via the Kirkendall effect and Ostwald ripening towards efficient overall water splitting

引用

Nano Research 2020年第8期13卷 2098-2105页

作者： Yutai Wu Hui Wang Shan Ji Bruno G.Pollet Xuyun Wang Rongfang Wang State Key Laboratory Base for Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdao266042China College of Biological Chemical Science and Chemical EngineeringJiaxing UniversityJiaxing314001China Department of Energy and Process Engineering Faculty of EngineeringNorwegian University of Science and Technology(NTNU)NO-7491TrondheimNorway

Transitional metal phosphides with array-like structure grown on conductive support materials are promising bifunctional catalysts for the oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).In this study,a method was developed to synthesize directly porous Ni2P nanosheet arrays and Ni2P nanoparticles onto nickel foam via a hydrothermal reaction followed by a phosphorization *** studies revealed that the allomorphs of Ni2P nanosheets and Ni2P nanoparticles in the array-like structure were formed via the Kirkendall effect and Ostwald ripening.A fully functional water electrolyzer containing Ni2P as electrodes for the OER and HER exhibited promising activity and *** 10 mA·cm^−2,a Ni2P cell voltage of 1.63 V was obtained,which was only 0.05 V smaller than that found for Pt/C/NF||RuO2/NF *** enhanced electrocatalytic performance resulted from the favorable porosity of the Ni2P arrays and the synergistic effect between Ni2P nanosheets and Ni2P nanoparticles.

关键词： Ni2P catalysts arrays overall water splitting Kirkendall effect Ostwald ripening

来源：评论

学校读者我要写书评

暂无评论

Valorization of Piggery Slurry Wastewater to Bioenergy

SSRN

引用

SSRN 2023年

作者： Manyuchi, M. Mercy Sukdeo, Nita Maponga, G. Department of Chemical and Process Systems Engineering Harare Institute of Technology Zimbabwe Zimbabwe Department of Operations and Quality Management Faculty of Engineering and the Built Environment University of Johannesburg South Africa

This work focused on the valorization of piggery industry slurry to bio energy and bio fertilizers. A sample of piggery slurry wastewater was treated using a bio catalyst, Actizyme at 0.050 g/L loading, resulting in reduction of the biological oxygen demand (BOD) by 97%, the total dissolved solids (TDS) by 89% and the total suspended solids (TSS) by 98%. The solid material from the slurry was anaerobically digested to produce biogas with 73.4% methane composition over a period of 30 days and temperature of 37 ◦C at a commercial rate of 494 kg/day. The techno economic assessment for the piggery slurry valorization indicated a return on investment of 26% and payback period of 4 years and a capital investment of USD 820 000. © 2023, The Authors. All rights reserved.

关键词： Biogas

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：