Article
Energy & Fuels
Sang Jun Han, Jung-Ho Wee
Summary: Two CO2 chemical absorption systems using AMP and MEA aqueous solutions were compared in terms of absorption performance and electrical properties. The study found that the absorption capacity in the AMP system increases linearly with C-ini, while the absorption rate in the MEA system is affected by concentration and primary reaction changes. The differences in performance can be attributed to the molecular structures and sizes of the two systems.
Article
Engineering, Chemical
Tomohiro Kinoshita, Katsunori Yogo
Summary: A lab-scale continuous CO2 capture system for coal-fired power plants using amine-impregnated solid sorbents was optimized through process simulation. Sensitivity analysis on key parameters was conducted, and the simulation results closely matched experimental values. After confirming the reliability of the simulator, cycle time and process time were optimized to achieve a reduction in regeneration heat without compromising CO2 capture efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Cheng-Hsiu Yu, Yu-Jeng Lin, David Shan-Hill Wong, Chau-Chyun Chen
Summary: This study presents a first-principle process simulation model for the chemical absorption of CO2 with MEA aqueous solutions using RPB. The model accurately simulates the phase and chemical equilibria, the heat and mass transfer, the reactions between MEA and CO2, and the RPB hydraulics. The reaction rate constant is found to be the controlling step with the greatest potential to enhance CO2 absorption performance in RPB.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Fariba Zarei, Peyman Keshavarz
Summary: For the first time, amino acid groups were added to Fe3O4 nanoparticles to enhance CO2 absorption and desorption. The modified nanoparticles showed higher stability and presence of amino groups, resulting in increased CO2 absorption capacity. Moreover, Fe3O4@arginine, Fe3O4@histidine, and Fe3O4@glycine nanofluids significantly improved CO2 desorption enhancement.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Wanrong Dong, Xiuling Ji, Yuhong Huang, Yaju Xue, Boxia Guo, Dongbo Cai, Shouwen Chen, Suojiang Zhang
Summary: This study presents a complete synthetic pathway for the direct conversion of CO2 to ethanol. The pathway consists of three functional modules and operates in a carbon-conserved and ATP-independent system. The efficiency of the pathway was enhanced by screening efficient enzymes and using a two-step reaction. The feasibility of converting CO2 to ethanol was demonstrated through experiments.
Article
Thermodynamics
Fariba Zarei, Farideh Bagherzadeh Jahromi, Abbas Elhambakhsh, Peyman Keshavarz
Summary: This study aimed to investigate the ability of functionalized-magnetic nanoparticles (NPs) in improving CO2 absorption and reducing regeneration energy demand in a bubble column reactor. The results showed that Fe3O4@Aspartic and Fe3O4@Lysine NPs improved CO2 loading by 15.3% and 21.4% respectively, compared to Fe3O4 NPs. The functionalized-magnetic NPs also showed better effects on CO2 desorption, and the CO2 loading was reduced by 58.9% and 55.1% using Fe3O4@Lys and Fe3O4@Asp respectively at 70 degrees C.
Article
Thermodynamics
Weifeng Zhang, Yuanlong Xu, Zhaoxiong Deng, Qiuhua Wang
Summary: The study demonstrates that the efficiency of chemical desorption can be significantly improved by using different desorption agents and operating under specific conditions. Under optimal conditions, the desorption rate can reach high levels, providing a promising alternative to traditional thermal desorption methods.
Article
Energy & Fuels
Babak Aghel, Mahmoud Maleki, Sasan Sahraie, Ehsan Heidaryan
Summary: The study investigated the use of different alcoholic mixtures as solvents for CO2 absorption in a microreactor, finding that alcoholic solvents reduced energy consumption during CO2 desorption, with the most effective mixture being monoethanolamine + methanol.
Article
Biochemistry & Molecular Biology
Mohamed Ahmed Khaireh, Marie Angot, Clara Cilindre, Gerard Liger-Belair, David A. Bonhommeau
Summary: In this study, diffusion coefficients of CO2 and EtOH were calculated using molecular dynamics simulations and compared with experimental values. The results show that diffusion coefficients increase with temperature and decrease with ethanol concentration. While the theoretical values for CO2 match well with experimental values, the theoretical values for EtOH slightly overestimate the experimental values.
Article
Engineering, Environmental
Huaigang Cheng, Huiping Song, Sam Toan, Baofeng Wang, Khaled A. M. Gasem, Maohong Fan, Fangqin Cheng
Summary: Solid adsorbents were prepared by fixing amines to HZSM-5 zeolites via wet impregnation method, and the CO2 adsorption properties were investigated in a fixed-bed adsorption system followed by the structural, thermodynamic and kinetic studies. The study found that HZSM-5 zeolite with a Si/Al ratio of 25 and an average particle size of about 2.3 μm is an effective CO2 adsorbent support, and CO2 adsorbents supporting MEA and AEEA exhibit good CO2 adsorption capacities. The AEEA loaded HZSM-5 adsorbent shows high adsorption-desorption stability in the regeneration cycle tests, indicating energy efficiency in the CO2 desorption process and low CO2 capture cost.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Kubra Arslan, Maria C. Veiga, Christian Kennes
Summary: The influence of carbon source, CO or fructose, on the metabolism and growth of Clostridium aceticum was investigated. Optimal growth conditions with CO showed the highest specific growth rate and acetic acid production, while fructose fermentation resulted in formic acid inhibition. The carbon source had a selective effect on metabolic patterns and solventogenesis of C. aceticum.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Chansol Kim, Kyeong Min Cho, Kangho Park, Ju Ye Kim, Geun-Tae Yun, Francesca M. Toma, Issam Gereige, Hee-Tae Jung
Summary: The study introduced a novel porous Cu/Cu2O aerogel network to achieve high ethanol productivity by electrocatalytic CO2RR, showing promising potential for ethanol production. Experimental results demonstrated that the aerogel produced ethanol as the major product and exhibited excellent electrosynthesis performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Lisha Sheng, Zhenqian Chen, Xin Wang, Abdul Samad Farooq
Summary: The research focused on developing Type I porous liquids (PLs) by modifying porous silica nanoparticles with canopies of varying structures to achieve low viscosity and good fluidity. The experimental results showed that high molecular weight canopies were necessary to maintain the porous materials in a liquid state at room temperature, with the PLs displaying excellent CO2 sorption capacity and recyclability. Low temperature and high pressure positively influenced the CO2 capacity of the PLs.
Article
Thermodynamics
Irem Kocyigit Capoglu, Duygu Uysal, Ozkan Murat Dogan
Summary: Carbitol acetate has shown potential as an absorbent for CO2 absorption process, with its mass transfer coefficients increasing with liquid and gas velocities. Compared to other substances, Carbitol acetate exhibits higher efficiency in chemical absorption mechanism.
HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Jordi Sans, Guillem Revilla-Lopez, Vanesa Sanz, Jordi Puiggali, Pau Turon, Carlos Aleman
Summary: This study proposes the use of permanently polarized hydroxyapatite as a catalyst for the conversion of CO2 into ethanol, presenting a highly selective and green production method.
CHEMICAL COMMUNICATIONS
(2021)
Article
Plant Sciences
Wenchao Zhao, Huang Huang, Jingjing Wang, Xiaoyun Wang, Bingqin Xu, Xuehui Yao, Lulu Sun, Rui Yang, Jianli Wang, Aidong Sun, Shaohui Wang
Summary: The jasmonic acid (JA) signaling pathway is crucial for plants' response to drought stress. JA and other hormones work together to regulate drought response in plants, but the exact molecular mechanism of this synergy is not well understood. This study found that MYC2 directly inhibited the negative regulators of ABA signaling and the cytokinin pathway, SlPP2C1 and SlRR26, respectively. SlRR26 negatively regulated reactive oxygen species levels and stomatal closure through RobhB. Additionally, SlRR26 counteracted JA-mediated stomatal closure, indicating its negative role in the JA-mediated drought response.
Article
Surgery
Norman Atagu, Stefani Mihilli, Huong Thao Nguyen, Alicia Wu, Olusegun Famure, Yanhong Li, S. Joseph Kim
Summary: Kidney transplant recipients have a higher risk of fracture, and female sex, history of fracture, and pretransplant diabetes are risk factors for first fracture. In addition, transplant age and increased time on pretransplant dialysis are also associated with first fracture. Recurrent fracture risk is associated with recipient female sex and history of diabetes.
PROGRESS IN TRANSPLANTATION
(2023)
Letter
Computer Science, Information Systems
Wenwu Xiao, Yue Peng, Yan Liu, Huifu Duan, Fujun Bai, Bing Yu, Qiwei Ren, Xiao Yu, Genquan Han
SCIENCE CHINA-INFORMATION SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Limeng Zhao, Hongmiao Tian, Haoran Liu, Weitian Zhang, Fabo Zhao, Xiaowen Song, Jinyou Shao
Summary: Artificial muscles are important for robotic applications. While rigid muscles have strong load-bearing capacity, their deformation is small, while soft muscles can deform extensively but have weak load-bearing capacity. Additionally, artificial muscles are usually controlled in an open loop without deformation-related feedback. Inspired by the coordination of muscles, bones, and nerves in human arms, a soft-rigid hybrid smart artificial muscle (SRH-SAM) is proposed. This SRH-SAM utilizes liquid crystal elastomer (LCE) for reversible deformation and helical metal wire for high bearing capacity and electric heating. It opens new possibilities for designing smart artificial muscles and promoting the development of muscle-based devices.
Article
Engineering, Geological
Zhengliang Li, Jianchun Li, Wei Li
Summary: In this research, a boundary integral equation method is developed to analyze the seismic response of a tunnel near a slope surface. The study found that canyons have a significant intensification effect on the dynamic response of the tunnel. The effectiveness of two anti-seismic measures was also evaluated, with the isolation layer improving stress state but potentially increasing tensile stress in the lining when surrounding rock is strengthened.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Physics, Applied
X. Dai, X. Liu, Q. He, Y. Chen, Z. Mai, Z. Shi, W. Guo, Y. Wang, L. F. Wei, M. R. Vissers, J. Gao
Summary: We present a new fitting method that can accurately and robustly fit the complex transmission curve of a superconducting resonator in the nonlinear regime. This method takes into account the varying internal current in the resonator at different frequencies and the nonlinear dependence of the inductance on the internal current. It has wide applications in superconducting detector, superconducting qubit, and parametric amplifier data analysis.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2023)
Article
Agronomy
Jiawen Lu, Sihan Zhen, Jie Zhang, Yuxin Xie, Cheng He, Xiaoli Wang, Zheyuan Wang, Song Zhang, Yongxiang Li, Yu Cui, Guoying Wang, Jianhua Wang, Jun Liu, Lin Li, Riliang Gu, Xiaoming Zheng, Junjie Fu
Summary: This study examines the genetic and evolutionary features of long intergenic non-coding RNAs (lincRNAs) in maize and reveals that they are more likely to be regulated by cis-acting expression quantitative trait loci (cis-eQTLs) than protein-coding genes. The upregulated alleles of lincRNAs, which originated from standing variation and new mutation, accumulate more frequently and show larger effect sizes during maize domestication and improvement. Additionally, non-conserved lincRNAs tend to gain upregulated alleles and are more closely related to selected traits compared to conserved lincRNAs.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Endocrinology & Metabolism
Jinxing Wei, XiaoMing Wu, Shuohao Wang, Siqing Liu, Xia Gao
Summary: By analyzing single cell data, the study found a correlation between the lysosomal pathway and immune infiltration in esophageal squamous cell carcinoma (ESCC). The lysosomal pathway was found to significantly influence the prognosis and immune infiltration of ESCC. The expression of lysosomal pathway-related genes was also associated with treatment resistance and inhibition of tumor cell growth in cellular experiments.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Psychiatry
Li Zhang, Mengqian Pang, Xiaoyun Liu, Xiaoke Hao, Meiling Wang, Chunming Xie, Zhijun Zhang, Yonggui Yuan, Daoqiang Zhang
Summary: Depression is a common and serious medical illness, affecting 5% of adults globally. Imaging genetics has emerged as a powerful strategy for understanding the genetic basis of depression. However, existing studies often use simple statistical analysis methods and focus on single-modality brain imaging, limiting our understanding of the mechanisms underlying depression. Therefore, it is crucial to develop a more comprehensive approach to explore the associations between genetic variants and multi-modality brain imaging data.
FRONTIERS IN PSYCHIATRY
(2023)
Article
Materials Science, Multidisciplinary
Yuyang Zhang, Bin Liu, Ruiqian Zhang, Huiqun Liu, Yuankui Cao, Jia Li, Qihong Fang, Yong Liu
Summary: In this study, a new Fe-13Cr-2W-0.4Ti-0.6Zr/0.35Y2O3 ODS ferritic steel was designed and fabricated, which showed highly dispersive nano-oxide particles and a heterogeneous coarse/ultrafine grains structure. The steel exhibited superior mechanical properties and ductility at both room temperature and high temperature, attributed to particle dispersion strengthening and back stress strengthening, as well as the deformation ability of coarse grains and back stress hardening effect induced by the heterogeneous structure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Medicine, General & Internal
Xin Luo, Peishan Chen, Xinlu Chang, Yang Li, Lei Wan, Fushan Xue, Lixin An
Summary: Intraoperative dexmedetomidine (DEX) can significantly decrease postoperative pain level and reduce the severity of postoperative nausea and vomiting after gastric endoscopic submucosal dissection (ESD). The study found that compared to the control group, the DEX group had a lower incidence of moderate to severe pain, lower visual analog scale (VAS) pain scores, lower dosage of morphine, and decreased postoperative nausea and vomiting scores. Therefore, the use of DEX during surgery can effectively improve postoperative pain management and patient satisfaction.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Materials Science, Multidisciplinary
Wenxuan Zhu, Chaosheng Hu, Maoyi Zhang, Tao Jiang, Chris R. R. Bowen, Xiaojing Mu, Ya Yang
Summary: The demand for micro-energy sources has increased due to the widespread use of small-scale and low-power electronic devices. This paper presents a novel coupled nanogenerator that can harvest multiple energy sources simultaneously. By utilizing the unique electrical properties of ferroelectric material Bi0.5Na0.5TiO3 (BNT), a single element combining photovoltaic, pyroelectric, and triboelectric-piezoelectric nanogenerators can harvest light, heat, and mechanical energy. The evaluation of the coupling effectiveness of different materials shows that BNT has the best coupling enhancement compared to common ferroelectric materials, indicating its potential for future development of coupled nanogenerators capable of harvesting multiple sources of energy.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Oncology
Zhenghua Huang, Zhen Li, Juan Wang, Ruirui Gui, Yingling Zu, Fengkuan Yu, Quande Lin, Huifang Zhao, Yanli Zhang, Baijun Fang, Yanyan Liu, Keshu Zhou, Yufu Li, Yuewen Fu, Zhihua Yao, Yongping Song, Jian Zhou
Summary: The efficacy of autologous hematopoietic stem cell transplantation (ASCT) in peripheral T-cell lymphoma (PTCL) remains controversial. This study suggests that ASCT benefits patients with complete remission (CR), while post-transplant maintenance therapy improves outcomes for patients with partial remission (PR).
FRONTIERS IN ONCOLOGY
(2023)
Article
Engineering, Chemical
Junjie Jiang, Cuiling Peng, Wenjing Liu, Shuangyin Liu, Zhijie Luo, Ningxia Chen
Summary: This study proposes a cold chain transportation environment prediction method combining k-means++ and a long short-term memory (LSTM) neural network. The predicted model can forecast the trend of cold chain environment changes in the next ten minutes and provide guidance for environmental control equipment. The model shows satisfactory prediction accuracy and can offer strategic support for the fine management and regulation of the cold chain transportation environment.
Article
Biochemistry & Molecular Biology
Kaisha Luo, Jiaohong Li, Min Lu, Huaming An, Xiaomao Wu
Summary: Autophagy is a highly conserved process in eukaryotes that is involved in the degradation and recycling of damaged cells in plants, and plays a role in plant growth, development, senescence, and resistance to external stress. In this study, researchers identified 40 autophagy-related genes (RrATGs) in Rosa roxburghii fruits, and found that RrATG18e gene was significantly up-regulated during the initial infection stage of Colletotrichum fructicola, the pathogen causing Top-rot disease (TRD). Additionally, exogenous calcium (Ca2+) was found to enhance the expression of RrATG18e and increase fruit resistance to TRD, indicating its involvement in calcium-mediated defense response. This study provides insights into the role of R. roxburghii autophagy-related genes in disease resistance.
