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Frontiers of Chemical Science and Engineering 2024年第5期18卷 83-94页

作者： Yu Meng Yitong Wang guozhu Li guozhu Liu Li Wang Key Laboratory for Green Chemical Technology of Ministry Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Primary,secondary and tertiary amino-functionalized zirconia(ZrO_(2)-NH_(2),ZrO_(2)-NH and ZrO_(2)-N)was synthesized by the postgrafting method for the adsorption removal of typical metallic ions,phosphate and total oxidizable carbon from a real H_(2)O_(2) ***_(2)-NH_(2),ZrO_(2)-NH and ZrO_(2)-N exhibited similar pore sizes and sequentially increased zeta *** adsorption results of single and binary simulated solutions showed that the removal efficiency increased in the order of Fe^(3+)>Al^(3+)>Ca^(2+)>Na^(+).There is competitive adsorption between metallic ions,and Fe^(3+) has an advantage over the other metals,with a removal efficiency of 90.7%.The coexisting phosphate could promote the adsorption of metallic ions,while total oxidizable carbon had no effect on *** adsorption results of the real H_(2)O_(2)solution showed that ZrO_(2)-NH_(2) exhibited the best adsorption affinity for metallic ions,as did phosphate and total oxidizable carbon,with a total adsorption capacity of 1.0.9 mg·g_(-1..Density functional theory calculations revealed that the adsorption process of metallic ions involves electron transfer from N atoms to metals and the formation of N-metal bonds.

关键词： adsorption metallic ion phosphate total oxidizable carbon zirconia H_(2)O_(2)

Thermal stable Pt clusters anchored by K/TiO_(2)—Al_(2)O_(3)for efficient cycloalkane dehydrogenation

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Chinese Journal of Chemical Engineering 2024年第8期72卷 187-198页

作者： Zhendong Wang Bofeng Zhang guozhu Liu Xiangwen Zhang Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Zhejiang Institute of Tianjin University Ningbo 315201China

Catalytic dehydrogenation of cycloalkanes is considered a valuable endothermic process for alleviating the thermal barrier issue of hypersonic ***,conventional Pt-based catalysts often face the severe problem of metal sintering under high-temperature ***,we develop an efficient K_(2)CO_(3)-modified Pt/TiO_(2)—Al_(2)O_(3)(K—Pt/TA)for cycloalkane *** optimized K—Pt/TA showed a high specific activity above 27.9 mol·mol^(-1.·s^(-1.(H_(2)/Pt),with toluene selectivity above 90.0%at 600℃with a high weight hourly space velocity of 266.4 h^(-1..The introduction of alkali metal ions could generate titanate layers after high-temperature hydrogen reduction treatment,which promotes the generation of oxygen vacancy defects to anchored Pt *** addition,the titanate layers could weaken the surface acidity of catalysts and inhibit side reactions,including pyrolysis,polymerization,and isomerization ***,this work provides a modification method to develop efficient and stable dehydrogenation catalysts under high-temperature conditions.

关键词： Cycloalkane dehydrogenation Pt clusters Oxygen vacancy defects Coking Stability Deactivation

Piezoelectric sensing method for segmental joint contact stress during shield tunnel construction

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Underground Space 2024年第4期17卷 82-99页

作者： Guodong Jiang Minghao Dai guozhu Zhang Limin Gao Institute of Geotechnical Engineering Southeast UniversityNanjing 211189China Nanjing Metro Group Co.Ltd Nanjing 210000China No.4 Construction Company of China Petroleum Pipeline Engineering Co.Ltd Langfang 065000China

The emergence of curved shield tunnels poses a significant construction *** the quality of the segment assembly is not guaranteed,many segment cracks and damage will result from the stress *** the contact stresses between segmental joints is necessary to improve the quality of segments assembled for shield tunnel *** difluoride(PVDF)piezoelectric material was chosen for the sensor because it can convert contact stresses into electrical signals,allowing the state of the segmental joints to be effectively *** matches the working environment between the segmental joints of the shield tunnel,where flexible structures such as rubber gaskets and force transfer pads are *** study proposes a piezoelectric sensing method for segmental joints in shield tunnels and conducts laboratory tests,numerical analyses,and field tests to validate the feasibility of the *** results indicate that the PVDF film sensor can effectively sense the entire compression process of the gasket with different amounts of *** piezoelectric cable sensor can effectively sense the joint offset direction of the *** differently shaped sections,the variation in the force sensed by the piezoelectric cable sensors was different,as verified by numerical *** the field test,it was found that the average contact stress between the segmental joints was in the range of 1.2–1.8 MPa during construction of the curved shield *** location of the segmental joints and the type of segment affect the contact stress *** field monitoring results show that piezoelectric sensing technology can be successfully applied during assembly of the segments for effective sensing of the contact stress.

关键词： Shield tunnel Segmental joint Contact stress Piezoelectric sensor

The characteristics of driver lane-changing behaviour in congested road environments

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Transportation Safety and Environment 2024年第3期6卷 96-110页

作者： Wanqi Wang guozhu Cheng School of Traffic and Transportation Northeast Forestry UniversityHarbin 150040HeilongjiangChina

Lane-changing behaviour is one of the complex|driving *** lane-changing behaviour of drivers may exacerbate congestion,however driver behavioural characteristics are difficult to accurately acquire and quantify,and thus tend to be simplified or ignored in existing lane-changing *** this paper,the Bik-means clustering algorithm is used to analyse the urban road congestion state discrimination ***,simulated driving tests were conducted for different traffic congestion *** the force feedback system and infrared camera,the data of driver lane-changing behaviours at different traffic congestion levels are obtained separately,and the definitions of the start and end points of a vehicle changing lanes are ***,statistical analysis and discussion of key feature parameters including driver lane-changing behaviour data and visual data under different levels of traffic congestion were *** is found that the average lane-change intention times in each congestion state are 2 s,4 s,6 s and 7 s,while the turn-signal duration and the number of rear-view mirror observations have similar patterns of change to the data on lane-changing intention ***,drivers’pupil diameters become smaller during the lane-changing intention phase,and then relatively enlarge during lane-changing;the range of pupil variation is roughly 3.5 mm to 4 *** frequency of observing the vehicle in front of the target lane increased as the level of congestion increased,and the frequency of observation in the driver’s mirrors while changing lanes approximately doubled compared to driving straight ahead,and this ratio increased as the level of congestion increased.

关键词： road congestion lane-changing behaviour Bik-means clustering algorithm characterization study

A comprehensive framework for predicting public opinion by tracking multi-informational dynamics

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Frontiers of Computer Science 2024年第4期18卷 197-199页

作者： Mingtao SUN Yan WEI Shan JIANG guozhu JIA School of Economics and Management Beihang UniversityBeijing 100191China School of Software Beihang UniversityBeijing 100191China School of Economics Wuhan University of TechnologyWuhan 430070China

1.Introduction In the digital landscape,trivial rumors can spark significant online reactions[1..Accurate prediction of public opinion is important for crisis management,misinformation mitigation,and fostering public ***,existing methods often fail to thoroughly investigate multiple informational factors and their timely interactions[2-4],thereby limiting their efficacy in analysing public opinion.

关键词： thereby thoroughly limiting

Multi-objective Design of Blending Fuel by Intelligent Optimization Algorithms

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Transactions of Tianjin University 2024年第3期30卷 221-237页

作者： Ruichen Liu Cong Li Li Wang Xiangwen Zhang guozhu Li Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Fuel design is a complex multi-objective optimization problem in which facile and robust methods are urgently ***,a complete workflow for designing a fuel blending scheme is presented,which is theoretically supported,efficient,and *** on the data distribution of the composition and properties of the blending fuels,a model of polynomial regression with appropriate hypothesis space was *** parameters of the model were further optimized by different intelligence algorithms to achieve high-precision ***,the design of a blending fuel was described as a multi-objective optimization problem,which was solved using a Nelder–Mead algorithm based on the concept of Pareto ***,the design of a target fuel was fully validated by *** study provides new avenues for designing various blending fuels to meet the needs of next-generation engines.

关键词： Multi-objective optimization Machine learning Blending fuel

Engineering oxygen vacancies on Tb-doped ceria supported Pt catalyst for hydrogen production through steam reforming of long-chain hydrocarbon fuels

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Chinese Journal of Chemical Engineering 2024年第4期68卷 181-192页

作者： Zhourong Xiao Changxuan Zhang Peng Li Desong Wang Xiangwen Zhang Li Wang Jijun Zou guozhu Li State Key Laboratory of Metastable Materials Science and Technology(MMST) Hebei Key Laboratory of Applied ChemistryCollege of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

Steam reforming of long-chain hydrocarbon fuels for hydrogen production has received great attention for thermal management of the hypersonic vehicle and fuel-cell *** this work,Pt catalysts supported on CeO_(2)and Tb-doped CeO_(2)were prepared by a precipitation *** physical structure and chemical properties of the as-prepared catalysts were characterized by powder X-ray diffraction,scanning electron microscopy,transmission electron microscopy,Raman spectroscopy,H_(2)temperature programmed reduction,and X-ray photoelectron *** results show that Tb-doped CeO_(2)supported Pt possesses abundant surface oxygen vacancies,good inhibition of ceria sintering,and strong metal-support interaction compared with CeO_(2)supported *** catalytic performance of hydrogen production via steam reforming of long-chain hydrocarbon fuels(n-dodecane)was *** with 2Pt/CeO_(2),2Pt/Ce_(0.9)Tb_(0.1.O_(2),and 2Pt/Ce_(0.5)Tb_(0.5)O_(2),the 2Pt/Ce_(0.7)Tb_(0.3)O_(2)has higher activity and stability for hydrogen production,on which the conversion of n-dodecane was maintained at about 53.2%after 600 min reaction under 700℃at liquid space velocity of 9 ml·g^(-1.·h^(-1..2Pt/CeO_(2)rapidly deactivated,the conversion of n-dodecane was reduced to only 41.6%after 600 min.

关键词： Steam reforming n-Dodecane Hydrogen production Pt-based catalyst Oxygen vacancy CeO_(2)

ROR2 promotes invasion and chemoresistance of triple-negative breast cancer cells by activating PI3K/AKT/mTOR signaling

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Oncology Research 2024年第7期32卷 1209-1219页

作者： XIA DA HAN GE JUNFENG SHI CHUNHUA ZHU guozhu WANG YUAN FANG JIN XU Department of Breast and Thyroid Nanjing First HospitalNanjing Medical UniversityNanjingChina Department of General Surgery The First Affiliated Hospital of Nanjing Medical UniversityNanjingChina Department of Oncology Nanjing First HospitalNanjing Medical UniversityNanjingChina Department of Pathology Nanjing First HospitalNanjing Medical UniversityNanjingChina

Objective:This study aimed to investigate the role of receptor tyrosine kinase-like orphan receptor 2(ROR2)in triple-negative breast cancer(TNBC).Methods:ROR2 expression in primary TNBC and metastatic TNBC tissues was analyzed by immunohistochemical staining and ***2 expression in TNBC cell lines was detected by PCR and Western blot *** migration,invasion and chemosensitivity of TNBC cells with overexpression or knockdown of ROR2 were ***:ROR2 expression was high in metastatic TNBC ***2 knockdown suppressed the migration,invasion and chemoresistance of TNBC ***2 overexpression in MDA-MB-435 cells promoted the migration,invasion,and ***,ROR2 knockdown in HC1.99 and MDA-MB-435 adriamycin-resistant cells enhanced chemosensitivity to ***2 could activate PI3K/AKT/mTOR signaling in TNBC ***:ROR2 is upregulated and promotes metastatic phenotypes of TNBC by activating PI3K/AKT/mTOR signaling.

关键词： Receptor tyrosine kinase-like orphan receptor 2 Triplet-negative breast cancer Proliferation Apoptosis PI3K/AKT/mTOR signaling Metastasis

Design and verification of an FPGA programmable logic element based on Sense-Switch pFLASH

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Frontiers of Information Technology & Electronic Engineering 2024年第4期25卷 485-499页

作者： Zhengzhou CAO guozhu LIU Yanfei ZHANG Yueer SHAN Yuting XU No.58 Research Institute China Electronics Technology Group CorporationWuxi 214035China

This paper proposes a kind of programmable logic element(PLE)based on Sense-Switch pFLASH *** programming Sense-Switch pFLASH,all three-bit look-up table(LUT3)functions,partial four-bit look-up table(LUT4)functions,latch functions,and d flip flop(DFF)with enable and reset functions can be *** PLE uses a choice of operational logic(COOL)approach for the operation of logic functions,it allows any logic circuit to be implemented at any ratio of combinatorial logic to *** intrinsic property makes it close to the basic application specific integrated circuit(ASIC)cell in terms of fine granularity,thus allowing ASIC-like cell-based mappers to apply all their optimization *** measuring Sense-Switch pFLASH and PLE circuits,the results show that the“on”state driving current of the Sense-Switch pFLASH is about 245.52μA,and that the“off”state leakage current is about 0.1.*** programmable function of PLE works *** delay of the typical combinatorial logic operation AND3 is 0.69 ns,and the delay of the sequential logic operation DFF is 0.65 ns,both of which meet the requirements of the design technical index.

关键词： Field programmable gate array(FPGA) Programmable logic element(PLE) Boolean logic operation Look-up table Sense-Switch pFLASH Threshold voltage

从遗存图像走向行动之诗——乔治·迪迪于贝尔曼的图像理论瞥视

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文艺理论研究 2024年第3期44卷 55-65页

作者：杨国柱山东艺术学院艺术管理学院 250300

乔治·迪迪于贝尔曼采用一种跨历史和跨学科的方法来研究图像,他的图像理论通过与尼采、弗洛伊德、瓦尔堡、本雅明、德勒兹等特定人物的持续对话而展开。一方面,迪迪于贝尔曼形成了一种“形象思维”的写作风格,他往往从一个旧有的形象... 详细信息

乔治·迪迪于贝尔曼采用一种跨历史和跨学科的方法来研究图像,他的图像理论通过与尼采、弗洛伊德、瓦尔堡、本雅明、德勒兹等特定人物的持续对话而展开。一方面,迪迪于贝尔曼形成了一种“形象思维”的写作风格,他往往从一个旧有的形象出发并重新制定属于自己的概念框架,比如“流动的宁芙”“抵抗的萤火虫”与“双重阿特拉斯”(图集与抵抗)。另一方面,虽然迪迪于贝尔曼的研究广泛且多样,但他在理论思考上仍具有显著的连贯性:早期关注以流动的宁芙形象为代表的图像迁移和遗存问题,并以此重新审视作为开放的艺术史的重新书写的可能;之后转向对图像并置的视觉形式即图集方法的关注,并引入了蒙太奇的多重性和异质性;近些年来他试图将对图像的历史和政治思考转化为一种行动哲学,即图像如何经由欲望、情感与想象力的中介而走向解放的行动。

关键词：乔治·迪迪于贝尔曼图集遗存图像宁芙行动之诗