Jialin Tong^1,2, Yan Zhang², Ruikang Wu¹, Xiaojuan Qi¹, Xuemin Ye^2,*

FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.4, pp. 1027-1041, 2023, DOI:10.32604/fdmp.2022.022303

Abstract A 600 MW coal-fired boiler with a four-corner tangential combustion mode is considered here to study the combustion features and pollutant emissions at different loads for large-percentages of blending dried sludges. The influence of the over-fired air (OFA) coefficient is examined and the impact of the blending ratio on the boiler operation is explored. The results show that for low blending ratios, a slight increase in the blending ratio can improve the combustion of bituminite, whereas a further increase leads to the deterioration of the combustion of blended fuels and thus reduces the boiler efficiency. Enhancing the supporting capability of the… More > Graphic Abstract

Muhammad Idris^1,*, I. Husin², Indra Hermawan¹, Uun Novalia³, R. D. Batubara¹, Nugroho Agung Pambudi^4,*, Alfan Sarifudin⁴

Energy Engineering, Vol.120, No.1, pp. 107-123, 2023, DOI:10.32604/ee.2023.019203

Abstract Diesel engines is an internal combustion engine with high thermal efficiency, which also uses biodiesel fuel, an environmentally friendly, non-toxic, and low sulfur content. Biodiesel has been around for a long time due to its similar characteristics to diesel fuels which has limited availability. However, several disadvantages are associated with biodiesel, such as poor volatility and high viscosity, which reduces engine performance. Therefore, this study was carried out to improve the diesel engine performance by mixing biodiesel with ecodiesel (ED), an additive produced from natural ingredients that is dissolvable in biodiesel. The biodiesel fuel properties used are  density 860 kg/, dynamic… More >

David Graf, Philipp Neuner, Reinhard Rauch^*

Energy Engineering, Vol.119, No.6, pp. 2169-2192, 2022, DOI:10.32604/ee.2022.022759

Abstract The number of annually registered internal-combustion vehicles still exceeds electric-driven ones in most regions, e.g., Germany. Ambitious goals are disclosed with the European Green Deal, which calls for new technical approaches and greenhouse gas neutral transition technologies. Such bridging technologies are synthetic fuels for the transportation sector, e.g., using the bioliq^® process for a CO₂-neutral gasoline supply. Fuels must meet the applicable national standards to be used in existing engines. Petrochemical parameters can be variably adapted to their requirements by hydroprocessing. In this work, we considered the upgrading of aromatic-rich DTG gasoline from the bioliq^® process. The heavy gasoline was… More >

Supakij Suttiruengwong^1,*, Kanchana Sotho¹, Manus Seadan²

Journal of Renewable Materials, Vol.2, No.1, pp. 85-92, 2014, DOI:10.7569/JRM.2013.634135

Abstract A one-step process in an internal mixer was used to prepare Poly(butylene succinate) (PBS)/high-loading modifi ed tapioca starch (30–40 wt%) blends with low glycerol content (10–20 wt% of starch) as a plasticizer. To promote a good compatibility, two reactive agents, maleic anhydride (MA)/peroxide and methylene diphenyl diisocyanate (MDI), were selected and compared. The mechanical properties, morphology, and Molau test of the blends were investigated. The compatibility of PBS/starch blends was improved by both reactive agents at the suitable plasticizer loading (glycerol 10 wt% of starch). It was demonstrated that increasing mechanical properties resulted in good adhesion of PBS/starch interface and… More >

Vu Thanh Phuong^1,2, Steven Verstichel³, Patrizia Cinelli^1,4, Irene Anguillesi¹, Maria-Beatrice Coltelli¹, Andrea Lazzeri^1,*

Journal of Renewable Materials, Vol.2, No.1, pp. 35-41, 2014, DOI:10.7569/JRM.2013.634136

Abstract Cellulose acetate (CDA) cannot be processed as raw material because it starts to decompose before melting. Triacetin and diacetin were tested to improve CDA processing versus conventional phthalate as environmentally sustainable plasticizers, because of their low toxicity and fast biodegradability. The addition of triacetin and diacetin allowed melt processing of CDA and the results of tensile tests outlined their effect as plasticizers. The values of mechanical properties were compatible with the requirements for applications in rigid packaging. From the results of biodegradation tests it can be concluded that for pure cellulose acetate, complete biodegradation was obtained within 200 days of… More >

Pronob Gogoi, Dhaneswar Das, Shyamalima Sharma, Swapan K. Dolui^*

Journal of Renewable Materials, Vol.3, No.2, pp. 151-159, 2015, DOI:10.7569/JRM.2014.634129

Abstract Alkyd resins based on Jatropha curcas oil with different molar ratios of phthalic anhydride (PA) and maleic anhydride (MA) were prepared by alcoholysis followed by polyesterifi cation reaction. The progress of the reaction was traced by the determination of acid value at regular time intervals. From the kinetic study the extent of the reaction was found in the range of 52.4–61.2%. The prepared resins were blended with a commercially available fast-curing epoxy resin in order to improve the properties like curing time, chemical resistance, tensile strength, and thermal stability. The morphology study of the blends showed good compatibility of alkyd… More >

Huimin Huang¹, Zijun Wu², Zhijian Zhou¹, Qiulin Xu¹, Jie Yan^1,*, Qiaoguang Li^1,*

Journal of Renewable Materials, Vol.11, No.1, pp. 257-272, 2023, DOI:10.32604/jrm.2023.021073

Abstract The low utilization rate of pesticides makes the migration of pesticides in water and soil, which brings great harm to the ecosystem. The development of pesticide carriers with good drug loading capacity and release control ability is an effective method to realize effective utilization of pesticides and reduce pesticide losses. In this work, fosthiazate-stearic acid/expanded perlite sustained-release particles were successfully prepared by vacuum impregnation using expanded perlite (EP) as carrier, fosthiazate (FOS) as model pesticide and stearic acid (SA) as hydrophobic matrix. The structure and morphology of the samples were studied by BET, FT-IR, TGA, XRD, DSC and SEM. The… More > Graphic Abstract

Deukhun Kim¹, Heejin Kim², Jin Kwak^3,*

Computer Systems Science and Engineering, Vol.44, No.3, pp. 2501-2519, 2023, DOI:10.32604/csse.2023.029356

Abstract New information and communication technologies (ICT) are being applied in various industries to upgrade the value of the major service items. Moreover, data collection, storage, processing, and security applications have led to the creation of an interrelated ICT environment in which one industry can directly influence the other. This is called the “internet of blended environments” (IoBE), as it is an interrelated data environment based on internet-of-things collection activities. In this environment, security incidents may increase as size and interconnectivity of attackable operations grow. Consequently, preemptive responses to combined security threats are needed to securely utilize IoBE across industries. For… More >

Yongjie Zheng^1,2,3,*, Mingjian Xu¹, Jingzhi Tian¹, Meihong Yu¹, Bin Tan⁴, Hong Zhao^2,3,*, Yin Tang^2,3

Journal of Renewable Materials, Vol.10, No.11, pp. 2949-2959, 2022, DOI:10.32604/jrm.2022.019702

Abstract Fully bio-based and biodegradable starch/polylactic acid blends have received increasing attentions for their biodegradability and potential to offset the use of unsustainable fossil resources, specifically, their application in packaging. Herein, corn starch was first esterified with maleic anhydride and then compounded with polylactide (PLA) to prepare esterified corn starch/polylactic acid blends with starch content up to 35 wt%. The structures, morphologies, thermal and mechanical properties of starch or blends were investigated. The results showed that corn starch was successfully grafted with maleic anhydride, which showed increased crystallinity and particle size than native starch. Esterified corn starch/polylactic acid blends showed good… More >

Minkyung Lee¹, Julian Jang-Jaccard², Jin Kwak^3,*

CMC-Computers, Materials & Continua, Vol.73, No.1, pp. 199-223, 2022, DOI:10.32604/cmc.2022.028495

Abstract New technologies that take advantage of the emergence of massive Internet of Things (IoT) and a hyper-connected network environment have rapidly increased in recent years. These technologies are used in diverse environments, such as smart factories, digital healthcare, and smart grids, with increased security concerns. We intend to operate Security Orchestration, Automation and Response (SOAR) in various environments through new concept definitions as the need to detect and respond automatically to rapidly increasing security incidents without the intervention of security personnel has emerged. To facilitate the understanding of the security concern involved in this newly emerging area, we offer the… More >