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Syngas to ethanol on MoCu(211)surface:Effect of promoter Mo on C-O bond breaking and C-C bond formation

Chinese Journal of Chemical Engineering 2022年第5期35卷 78-89页

作者： Lijuan He Cuimei zhi Lixia ling Riguang Zhang Baojun Wang State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Coal Science and Technology(Taiyuan University of Technology) Ministry of Education and Shanxi ProvinceTaiyuan 030024China College of Chemistry and Bioengineering Taiyuan University of Science and TechnologyTaiyuan 030024China College of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024China

The mechanism of syngas to ethanol on MoCu(211)surface has been researched by density functional theory(DFT)calculation,and the effects of Mo as a promoter on C-O bond breaking and C-C bond formation have been *** show that Cu-Mo atoms constitute the active sites on MoCu(211)surface after Mo atom being served as a promoter of Cu *** with Cu(211),MoCu(211)has two ***,CH_(3) is the most advantageous monomer on the MoCu(211)surface,which provides abundant CH_(3) intermediate for syngas to ***,the C-C bond is formed mainly by inserting CHO into the abundant CH_(3),and the generated CH_(3)CHO through multiple steps of hydrogenation to generate C_(2)H_(5)*** key of the promoter Mo on the MoCu(211)surface also has been verified by the analysis of its electronic *** charge density shows that the massive electron transfer from Mo to Cu,projected density of states(pDOS)shows that the electron transfer from Mo to Cu makes the d-band center of MoCu(211)nearer to the Fermi level,these indicate that the MoCu(211)catalytic capacity *** addition of Mo in the Cu-based catalyst not only can effectively solve the problem of C-O bond breaking,but also promote C-C bond *** the influence of Mo content on C-O bond breaking and C-C bond formation,compared with MoCu(211),the DFT results and the d-band center of Mo_(2)Cu(211)show that the increase of Mo content could not promote the synergistic effect of Cu/Mo on the generation of ethanol more effectively.

关键词： Syngas Ethanol DFT Cu catalyst Promoter Mo

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Mangiferin Promotes Bregs Level,Activates Nrf2 Antioxidant Signaling,and Inhibits Proinflammatory Cytokine Expression in Murine Splenic Mononuclear Cells In Vitro

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Current Medical Science 2021年第3期41卷 454-464页

作者： zhi-zhi QIN Jun RUAN Meng-ran LEE Kang SUN Ping CHEN Yan CHEN Mei HONG ling-hui XIA Jun FANG Hao tang Department of Hematology Institute of HematologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Hematology Huaihe Hospital of Henan UniversityKaifeng 475000China Department of Gastroenterology Wuhan Resources&Wisco General HospitalWuhan 430080China Collaborative Innovation Center of Hematology Soochow UniversitySuzhou 215000China Department of Cardiovascular Surgery Zhongnan HospitalWuhan UniversityWuhan 430071China

Recent studies indicated that regulatory B cells(Bregs)and nuclear factor erythroid 2-related factor 2(Nrf2)antioxidant signaling pathway play important roles in the pathogenesis of chronic graft-versus-host disease(cGVHD).Mangiferin(MA),a polyphenol compound,has been reported to activate Nrf2/antioxidant-responsive element(ARE)signaling *** study was aimed to investigate the effects of MA on Bregs and Nrf2 antioxidant signaling in murine splenic mononuclear cells(MNCs)in *** results revealed that MA could increase the Bregs level in murine splenic ***,MA up-regulated the expression of Bregs-associated immunosuppressive factor interleukin-10(IL-10)by activating the Janus kinase 2(JAK2)/signal transducer and activator of transcription 3(STAT3)and extracellular signal-regulated kinase(ERK)signaling in murine splenic ***,MA inhibited the proinflammatory cytokines IL-2 and interferon-y(INF-y)at both mRNA and protein *** also enhanced the transcription and protein expression of Nrf2 and NADPH quinine oxidoreductase 1(NQOl),whereas decreased that of Kelch-like ECH-associated protein 1(Keapl)in murine splenic ***,MA promoted the proliferation and inhibited the apoptosis of murine splenic *** results suggested that MA exerts immunosuppressive effects by upregulating the Bregs level,activating the Nrf2 antioxidant pathway,and inhibiting the expression of pro-immunoinflammatory ***,as a natural immunomodulatory and anti-inflammatory agent,may have a potential role in the prophylaxis and treatment of cGVHD.

关键词： mangiferin regulatory B cells nuclear factor erythroid 2-related factor 2 interleukin-10 immunomodulation anti-inflammation

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Intestinal microcirculation dysfunction in sepsis: pathophysiology, clinical monitoring, and therapeutic interventions

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World Journal of Emergency Medicine 2022年第5期13卷 343-348页

作者： A-ling tang Mei-jia Shen Guo-qiang Zhang Graduate School Beijing University of Chinese MedicineBeijing 100029China Graduate School Peking Union Medical CollegeBeijing 100730China Department of Emergency China-Japan Friendship HospitalBeijing 100029China

BACKGROUND:Intestinal microcirculation dysfunction is an important factor that causes poor prognosis in sepsis patients and is an important pathophysiological basis for the occurrence and development of *** RESOURCES:PubMed,Web of Science,and China National Knowledge Infrastructure(CNKI)were searched from inception to August 1,*** search was limited to the English language *** reviewers independently identified studies related to intestinal microcirculation dysfunction in *** criteria were duplicate articles according to multiple search ***:Fifty articles were included,and most of them were animal *** studies reported pathogenesis,including endothelial dysfunction,leukocyte recruitment and adhesion,microthrombus formation,microcirculation hypoperfusion,and redistribution of intestinal wall blood *** monitoring methods of intestinal microcirculation were also diverse,including handheld microscopes,intravital microscopy(IVM),laser Doppler blood flow instruments,laser speckle contrast imaging,tissue refl ectance spectrophotometry,biochemical markers of intestinal ischemia,and histopathological *** view of the related pathogenesis of intestinal microcirculation disorder in sepsis,existing studies also have diff erent opinions on its ***:Limited by monitoring,there are few clinical studies on intestinal microcirculation dysfunction in *** research mainly focuses on basic research,but some progress has also been ***,this review may provide a reference for future research on intestinal microcirculation dysfunction in sepsis.

关键词： Sepsis Microcirculation Intestinal barrier Intestinal ischemia Review

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Clinical characteristics of pulmonary cryptococcosis coexisting with lung adenocarcinoma:Three case reports

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World Journal of Clinical Cases 2020年第24期8卷 6444-6449页

作者： Gui-Xian Zheng Hai-Juan tang zhi-Ping Huang Hui-ling Pan Han-Yi Wei Jing Bai Department of Respiratory Medicine The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

BACKGROUND Pulmonary cryptococcosis (PC) is an invasive fungal disease caused mainly byCryptococcus (C.) neoformans or C. gattii. It may be present in immunocompetent orimmunocompromised patients. The radiographic features of PC vary, and themost common computed tomography manifestation is the presence of solitary ormultiple pulmonary nodules or masses distributed in the outer zone of the lungfield. The appearance of nodular or mass-like PC on computed tomography scansresembles that of primary or metastatic lung cancers, and differential diagnosis issometimes difficult. The coexistence of PC and malignant tumors is *** SUMMARY This paper reports three cases of PC combined with lung adenocarcinomadiagnosed by video-assisted thoracic surgery lung biopsy, which weresuccessfully managed by early diagnosis and *** The present case report might serve as a reminder not to neglect PC coexistingwith adenocarcinoma. Early diagnosis and treatment lead to a better prognosis.

关键词： Adenocarcinoma Coexistence Computed tomography Pulmonary cryptococcosis Respiratory medicine Case report

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Numerical simulations of shake-table experiment for dynamic soil-pile-structure interaction in liquefi able soils

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Earthquake Engineering and Engineering Vibration 2014年第1期13卷 171-180页

作者： tang Liang Baydaa Hussain Maula ling Xianzhang Su Lei Key Lab of Structures Dynamic Behavior and Control(Harbin Institute of Technology) Ministry of Education School of Civil Engineering Harbin Institute of Technology

A shake-table experiment on pile foundations in liquefi able soils composed of liquefi able sand and overlying soft clay is studied. A three-dimensional(3D) effective stress fi nite element(FE) analysis is employed to simulate the experiment. A recently developed multi-surface elasto-plastic constitutive model and a fully coupled dynamic inelastic FE formulation(u-p) are used to model the liquefaction behavior of the sand. The soil domains are discretized using a solid-fl uid fully coupled(u-p) 20-8 noded brick element. The pile is simulated using beam-column elements. Upon careful calibration, very good agreement is obtained between the computed and the measured dynamic behavior of the ground and the pile. A parametric analysis is also conducted on the model to investigate the effect of pile-pinning, pile diameter, pile stiffness, ground inclination angle, superstructure mass and pile head restraints on the ground improvement. It is found that the pile foundation has a noticeable pinning effect that reduces the lateral soil displacement. It is observed that a larger pile diameter and fi xed pile head restraints contribute to decreasing the lateral pile deformation; however, a higher ground inclination angle tends to increase the lateral pile head displacements and pile stiffness, and superstructure mass seems to effectively infl uence the lateral pile displacements.

关键词： liquefaction pile pinning soil improvement pile deformation earthquake nonlinear fi nite element method shake-table experiment

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Authentication scheme for industrial Internet of things based on DAG blockchain

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The Journal of China Universities of Posts and Telecommunications 2021年第6期28卷 1-12页

作者： tang Fei Dong Kun Ye Zhangtao ling Guowei College of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing 400065China School of Cyber Security and Information Law Chongqing University of Posts and TelecommunicationsChongqing 400065China

Internet of things(IoT) can provide the function of product traceability for industrial systems. Emerging blockchain technology can solve the problem that the current industrial Internet of things(IIoT) system lacks unified product data sharing services. Blockchain technology based on the directed acyclic graph(DAG) structure is more suitable for high concurrency environments. But due to its distributed architecture foundation, direct storage of product data will cause authentication problems in data management. In response, IIoT based on DAG blockchain is proposed in this paper, which can provide efficient data management for product data stored on DAG blockchain, and an authentication scheme suitable for this structure is given. The security of the scheme is based on a discrete-logarithm-based assumption put forth by Lysyanskaya, Rivest, Sahai and Wolf(LRSW) who also show that it holds for generic groups. The sequential aggregation signature scheme is more secure and efficient, and the new scheme is safe in theory and it is more efficient in engineering.

关键词： industrial Internet of things(IIoT) blockchain directed acyclic graph(DAG) aggregation signature

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Historical record of effects of human activities on absolute and relative concentrations of Polycyclic aromatic hydrocarbons(PAHs) in Lake Chao,China

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Journal of Environmental Sciences 2016年第8期28卷 1-4页

作者： John P.Giesy zhi tang Xiaoli Zhao Department of Veterinary Biomedical Sciences and Toxicology Centre University of Saskatchewan State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences

Polycyclic aromatic hydrocarbons（PAHs）are attracting concern because of their potential toxicity,posing serious threats to health of humans and ecosystems（Kim et al.,2013;Zhao et al.,2016）.Generally,similar to other contaminants＇behaviors（Wu et al.,2001;Zhang et al.,2007,2008;Lu et al.,2009）,PAHs result from natural organic matter and activities of humans,the latter＇s contribution usually outweighing the inputs from other sources（Fernández et al.,2000;Srogi,2007）.

关键词： Polycyclic aromatic hydrocarbons Organic contaminants Aquatic environment Lake sediment PAHs

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Dark and multi-dark solitons in the three-component nonlinear Schrodinger equations on the general nonzero background

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Chinese Physics B 2019年第12期28卷 60-67页

作者： zhi-Jin Xiong Qing Xu Liming ling School of Electric Power Engineering South China University of TechnologyGuangzhou 510640China School of Mathematics South China University of TechnologyGuangzhou 510640China

We exhibit some new dark soliton phenomena on the general nonzero background for a defocusing three-component nonlinear Schrodinger equation. As the plane wave background undergoes unitary transformation SU(3), we obtain the general nonzero background and study its modulational instability by the linear stability analysis. On the basis of this background, we study the dynamics of one-dark soliton and two-dark-soliton phenomena, which are different from the dark solitons studied before. Furthermore, we use the numerical method for checking the stability of the one-dark-soliton solution. These results further enrich the content in nonlinear Schrodinger systems, and require more in-depth studies in the future.

关键词： dark soliton three-component nonlinear Schrodinger equations general nonzero background

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Geological characteristics of the Nankai Trough subduction zone and their tectonic significances

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Acta Oceanologica Sinica 2020年第10期39卷 81-95页

作者： Jie Zhang ling Chen Zihua Cheng Limei tang Key Laboratory of Submarine Geosciences Ministry of Natural Resources/Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Key Laboratory of Marine Mineral Resources Guangzhou Marine Geological SurveyMinistry of Natural ResourcesGuangzhou 510760China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China

The Nankai Trough subduction zone is a typical subduction system characterized by subduction of multiple geological units of the Philippine Sea Plate(the Kyushu-Palau Ridge,the Shikoku Basin,the Kinan Seamount Chain,and the Izu-Bonin Arc)beneath the Eurasian Plate in the southwest of *** study presents a geophysical and geochemical analysis of the Nankai Trough subduction zone in order to determine the features and subduction effects of each geological *** results show that the Nankai Trough is characterized by lowgravity anomalies(–20 mGal to–40 mGal)and high heat flow(60–200 mW/m2)in the middle part and low heat flow(20–80 mW/m2)in the western and eastern *** crust of the subducting plate is 5–20 km *** mantle composition of the subducting plate is progressively depleted from west to *** of aseismic ridges(e.g.,the Kyushu-Palau Ridge,the Kinan Seamount Chain,and the Zenisu Ridge)is a common process that leads to a series of subduction effects at the Nankai ***,aseismic ridge or seamount chain subduction may deform the overriding plate,resulting in irregular concave topography along the front edge of the accretionary ***,it may have served as a seismic barrier inhibiting rupture propagation in the 1944 Mw 8.1 and 1946 Mw 8.3 *** addition,subduction of the Kyushu-Palau Ridge and hot and young Shikoku Basin lithosphere may induce slab melting,resulting in adakitic magmatism and the provision of ore-forming metals for the formation of porphyry copper and gold deposits in the overriding Japan *** on comparisons of their geophysical and geochemical characteristics,we suggest that,although the Izu-Bonin Arc has already collided with the Japan Arc,the Kyushu-Palau Ridge,which represents a remnant arc of the Izu-Bonin Arc,is still at the subduction stage characterized by a single-vergence system and a topographic boundary with the Japan Arc.

关键词： Nankai Trough subduction zone velocity structure gravity modeling geochemistry petrology slab melting geological effect

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Research on robot grabbing system based on hybrid cloud

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The Journal of China Universities of Posts and Telecommunications 2021年第6期28卷 48-54页

作者： Sheng Haiyan Wei Shimin Yu Xiuli tang ling School of Automation Beijing University of Posts and TelecommunicationsBeijing 100876China Century College Beijing University of Posts and TelecommunicationsBeijing 100876China

Robot grabbing has been successfully applied to a range of challenging environments but met the resource bottleneck. To answer this question, a hybrid cloud-based robot grabbing system is proposed, which supports centralized bin-picking management and deployment, large-scale storage, and communication technologies. The hybrid cloud combines the powerful computational capabilities through massive parallel computation and higher data storage facilities in the public cloud with data privacy in the private data center. The benchmark tasks against a public cloud based on robot grabbing method are evaluated, whose results indicate that the whole system reduces the data collection time and increases elastic resource scheduling and is adapted in the real industry.

关键词： grabbing hybrid cloud robotic object segmentation and recognition microservice

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