Xu Zhao, Houzhang Tan, Fuxin Yang^*, Shuanghui Deng

Energy Engineering, Vol.119, No.1, pp. 49-62, 2022, DOI:10.32604/EE.2022.015622

Abstract In order to reduce the environmental smog caused by coal combustion, air pollution control devices have been widely used in coal-fired power plants, especially of wet flue gas desulfurization (WFGD) and wet electrostatic precipitator (WESP). In this work, particulate matter with aerodynamic diameter less than 10 μm (PM₁₀) and sulfur oxides (SO_x) have been studied in a coal-fired power plant. The plant is equipped with selective catalytic reduction, electrostatic precipitator, WFGD, WESP. The results show that the PM₁₀ removal efficiencies in WFGD and WESP are 54.34% and 50.39%, respectively, and the overall removal efficiency is 77.35%. WFGD and WESP have… More >

Yafei Rong¹, Xudong Sun^1,2,*

Energy Engineering, Vol.119, No.1, pp. 315-329, 2022, DOI:10.32604/EE.2022.015485

Abstract Under the dual pressures of energy crisis and environmental pollution, China’s new energy power industry has become a focal point for environmental management and requires greater investment. In this context, as a significant input of investment projects, discount rate requires a well-calibrated evaluation because new energy power investment projects are highly capital intensive. The main objective of this paper is to evaluate the discount rate of China’s new energy power industry. First, we use Moving Average to correct the parameters of capital asset pricing model (CAPM) and weighted average cost of capital, which extends the literature on the avoidance of… More >

Yadi Qin, Qiyu Weng, Yuqun Zhuo^*

Energy Engineering, Vol.119, No.1, pp. 35-47, 2022, DOI:10.32604/EE.2022.015477

Abstract In order to improve the ability of SCR catalyst to catalyze the oxidation of gaseous elemental mercury, a series of novel Ce modified SCR (Selection Catalytic Reduction, V₂O₅–WO₃/TiO₂) catalysts were prepared via two-step ultrasonic impregnation method. The performance of Ce/SCR catalysts on Hg⁰ oxidation and NO reduction as well as the catalytic mechanism on Hg⁰ oxidation was also studied. The XRD, BET measurements and XPS were used to characterize the catalysts. The results showed that the pore volume and pore size of catalyst was reduced by Ce doping, and the specific surface area decreased with the increase of Ce content… More >

Qiang Yu^*, Xiankai Chen, Xiaoyue Li, Chaoqun Zhou, Zhichao Li

Energy Engineering, Vol.119, No.1, pp. 359-369, 2022, DOI:10.32604/EE.2022.015397

Abstract Smart grid puts forward higher requirements for power quality. Power quality evaluation can provide a decision-making basis for quality improvement. Based on power quality monitoring data, a grey target method is proposed for power quality evaluation. The grey target is composed of power quality evaluation standard and power quality monitoring data to be evaluated. Combining with the characteristics of each power quality evaluation index, the target center of the whole grey target system is found. Then, the power quality monitoring data to be evaluated and the power quality standard mode are compared and analyzed to construct the power quality grey… More >

Xuchang Hu^*

Energy Engineering, Vol.119, No.1, pp. 301-314, 2022, DOI:10.32604/EE.2022.014877

Abstract Power product-service system (power PSS), which combines industrial electric products with electric energy services, is an effective solution for power enterprises under the background of the rapid development of power systems. In the life cycle of power PSS, evaluation decision of power PSS alternatives is of great significance for subsequent implementation. To address the power PSS alternative evaluation problem, a power PSS evaluation framework is explored driven by the big data of stakeholder comments. Based on the multi-stakeholder comments of power PSS evaluation decision’s influence factors, the index system is constructed through analyzing and summarizing the co-occurrence matrix and semantic… More >

Qihui Ling^1,2,*, Wei Zhang², Qiancheng Zhao^1,2, Juchuan Dai^1,2

Energy Engineering, Vol.119, No.1, pp. 287-300, 2022, DOI:10.32604/EE.2022.014718

Abstract The inverter is one of the key components of wind turbine, and it is a complex circuit composed of a series of components such as a variety of electronic components and power devices. Therefore, it is difficult to accurately identify the operation states of inverter and some problems regarding its own circuit, especially in the early stages of failure. However, if the inverter temperature prediction model can be established, the early states can be identified through the judgment of the output temperature. Accordingly, considering whether the inverter heats up normally from the perspective of heat dissipation, a method for the… More >

LIMIN CHEN^1,2, XIAOWEI LI¹, TIANJUN HE², QUANCONG WU², TINGTING CHEN³, JUN HUANG^1,*, YAOBIN LU^1,*

BIOCELL, Vol.46, No.3, pp. 821-828, 2022, DOI:10.32604/biocell.2021.016450

Abstract Venom plays several important roles in the life of the fire ant, Solenopsis invicta Buren. Laboratory rearing significantly affected the toxin component of S. invicta. However, the molecular mechanism of the change of venomous components when kept in the laboratory is unclear. In this study, RNA sequencing technique (RNA-Seq) was performed to explore differentially expressed genes in the venom gland of S. invicta at 0, 10, and 60 days after laboratory rearing. The RNA-Seq results showed that the expression of a large number of genes changed. The DEGs were involved in multiple pathways, including proteolysis, serine-type endopeptidase, and allergen. Furthermore,… More >

PEI LIU, ZHE CHEN, XIAOQIONG MA^*

BIOCELL, Vol.46, No.3, pp. 737-743, 2022, DOI:10.32604/biocell.2021.015786

Abstract Sphingosine kinase 1 (SphK1) is an important synthetase during the synthesis of sphingosine-1-phosphate (S1P) from sphingosine (Sph). Previous studies demonstrated that arsenic trioxide (As₂O₃) could reduce the level of S1P in human gastric cancer cell line MGC-803, indicating that As₂O₃ may inhibit the activity of SphK1. In this study, the effect of As₂O₃ on the SphK1 activation pathway was investigated. Western blot and quantitative real-time PCR analysis were used to evaluate the changes in protein and mRNA levels. The multi-dimensional mass spectrometry-based shotgun lipidomics method (MDMS-SL) was used for the quantitative detection of phosphatidylserine (PS) and phosphatidic acid (PA). The… More >

HUI QU^1,2,3,4,#, RUICHUAN SHI^1,2,3,4,#, BOWEN YANG^1,2,3,4, XI CHEN^1,2,3,4, YUJIA SONG^1,2,3,4, LINGZI HE^1,2,3,4, YITING SUN^1,2,3,4, YUJING YANG^1,2,3,4, ZHI LI^1,2,3,4,*, XIUJUAN QU^1,2,3,4,*

BIOCELL, Vol.46, No.3, pp. 721-735, 2022, DOI:10.32604/biocell.2021.015867

Abstract The peritoneum is the most common site of recurrence of gastric cancer (GC). Early occult peritoneal metastasis is difficult to detect by imaging examination. Stratifying the risk of peritoneal metastasis in patients with different Lauren subtypes is of great clinical value. We performed a univariate Cox regression to identify those genes with prognostic value of overall survival (OS) and peritoneal-specified disease-free survival (psDFS) from the Gene Expression Omnibus database. The candidate genes were screened by the Subpopulation Treatment Effect Pattern Plot (STEPP) method. Propensity score matching (PSM) analysis was used to reduce the interference of confounders on the results. Based… More >

FEI ZHANG^1,2,#, JIANZHONG LAI^3,#, RONGHAN HE^1,#, YI SHI⁴, KUN XU⁵, SHIHAI JIANG¹, TANGZHAO LIANG¹, WANYU ZHAO⁵, WEIDA REN⁵, LEI ZHU⁶, SONG JIN^2,*, KUN WANG^1,*

BIOCELL, Vol.46, No.3, pp. 699-709, 2022, DOI:10.32604/biocell.2022.015726

Abstract Circular RNAs (circRNAs) are a novel class of non-coding RNA that have recently shown to have huge capabilities in the regulation of gene expression at the posttranscriptional level. Growing evidence has indicated that circRNAs could serve as competing endogenous RNAs (ceRNAs) to sponge microRNAs (miRNAs) and suppress functions of targeted miRNAs. Osteosarcoma (OS) is the most common malignant primary bone cancer. Hsa_circ_0002137 is upregulated in OS. However, the role of hsa_circ_0002137 in OS remains unclear. Using miRNA pull-down assay, we showed that cir_0002137 sponged hsa-miR-1246, and BCL2 apoptosis regulator (BCL2) mRNA was a potential target of hsa-miR-1246 in human osteosarcoma… More >