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Real-time compaction quality monitoring of high core rockfill dam

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Science China(Technological Sciences) 2011年第7期54卷 1906-1913页

作者： ZHONG DengHua LIU DongHai cui bo Department of Hydraulic and Hydroelectric Engineering School of Civil Engineering Tianjin University Tianjin 300072 China

The conventional quality control method of core rocldill dam construction exhibit difficulty controlling compaction parameters accurately or ensuring construction quality. This is because it is easily influenced by human behavior or lack of adequate management. We therefore establish the timely monitoring indexes and control criteria of compaction processes by considering the characteristics and quality requirements of high core rockffll dam construction. Based on the established indexes and criteria, integrating GPS, GPRS and PDA technologies, a real-time compaction quality monitoring method is proposed. The relevant key techniques are proposed as well, including automatic collection of information and a graphic algorithm for rolling-process visualization. By the proposed method and techniques, a real-time monitoring system is provided to realize the precise automatic online entire-process monitoring of compaction parameters, including compaction pass, rolling trajectory, nmning speed of roller, vibration status and rolled pavement thickness. The application of the Nuozhadu project shows that the proposed system can control compaction parameters effectively and ensure better construction quality. Therefore, it might become a new way towards construction quality control of high core rockfill dam.

关键词： core rockfill dam compaction quality real-time monitoring quality control

Research progress on the negative factors of corneal endothelial cells proliferation

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International Journal of Ophthalmology(English edition) 2012年第5期5卷 614-619页

作者： Yu-bo cui Jing Wu Department of Ophthalmology the First Affiliated Hospital of Jinan University Guangzhou 510632 Guangdong Province China Institute of Ophthalmology School of Medicine Jinan University Guangzhou 510632 Guangdong Province China

The human corneal endothelium forms a boundary layer between anterior chamber and corneal stoma. The corneal endothelial cells are responsible for maintaining cornea transparency, which is very vital for our visual acuity, via its pump and barrier functions. The adult corneal endothelial cells in vivo lack proliferation in response to the cell loss caused by outer damages and diseases. As a result, in order to compensate for cell loss, corneal endothelial cells migrate and enlarge while not via dividing to increase the endothelial cell density. Therefore, it is not capable for corneal endothelium to restore the corneal clarity. Some researches have proved that in vitro the corneal endothelial maintained proliferation ability. This review describes the current research progress regarding the negative factors that inhibit proliferation of the corneal endothelial cells. This review will mainly present several genes and proteins that inhibit the proliferation of the corneal endothelial cells, of course including some other factors like enzymes and position.

关键词： corneal endothelium proliferation age PLZF telomerase PTP1B cAMP position

Theoretical research on construction quality real-time monitoring and system integration of core rockfill dam

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Science China(Technological Sciences) 2009年第11期52卷 3406-3412页

作者： ZHONG DengHua cui bo LIU DongHai TONG DaWei Department of Hydraulic and Hydroelectric Engineering School of Civil EngineeringTianjin UniversityTianjin 300072China

With the enlargement of core rockfill dam construction scale and the improvement of construction mechanization level, the traditional manual construction quality control method is now difficult to meet the quality and safety demands of modern dam construction, so automatic and real-time dam construction quality monitoring with high-techs is urgently needed. The paper makes theoretical research on construction quality real-time monitoring and system integration of core rockfill dam, proposes implementation method and integrated solution of construction quality real-time monitoring of core rockfill dam construction process, realizes refining, all-whether, entire-process and real-time control and analysis on key links of dam construction, and introduces the application of the construction quality real-time monitoring and system integration technology to a practical core rockfill dam project.

关键词： core rockfill dam construction quality real-time monitoring system integration

Electron beam lithography on nonplanar and irregular surfaces

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Microsystems & Nanoengineering 2024年第2期10卷 1-23页

作者： Chenxu Zhu Huseyin Ekinci Aixi Pan bo cui Xiaoli Zhu Department of Electrical and Computer Engineering and Waterloo Institute for Nanotechnology(WIN) University of WaterlooWaterlooONCanada

E-beam lithography is a powerful tool for generating nanostructures and fabricating nanodevices with fine features approaching a few nanometers in ***,alternative approaches to conventional spin coating and development processes are required to optimize the lithography procedure on irregular *** this review,we summarize the state of the art in nanofabrication on irregular substrates using e-beam *** overcome these challenges,unconventional methods have been *** instance,polymeric and nonpolymeric materials can be sprayed or evaporated to form uniform layers of electron-sensitive materials on irregular ***,chemical bonds can be applied to help form polymer brushes or self-assembled monolayers on these *** addition,thermal oxides can serve as resists,as the etching rate in solution changes after e-beam ***,e-beam lithography tools can be combined with cryostages,evaporation systems,and metal deposition chambers for sample development and lift-off while maintaining low *** nanopyramids can be fabricated on an AFM tip by utilizing ice as a positive ***,Ti/Au caps can be patterned around a carbon ***,3D nanostructures can be formed on irregular surfaces by exposing layers of anisole on organic ice surfaces with a focused *** advances in e-beam lithography on irregular substrates,including uniform film coating,instrumentation improvement,and new pattern transferring method development,substantially extend its capabilities in the fabrication and application of nanoscale structures.

关键词： lithography beam coating

Metallic ureteral stent in restoring kidney function: Nine case reports

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World Journal of Clinical Cases 2020年第13期8卷 2841-2848页

作者： Wei Gao Tong-Wen Ou Xin cui Jiang-Tao Wu bo cui Department of Urology Xuanwu HospitalCapital Medical UniversityBeijing 100053China

BACKGROUND Retroperitoneal fibrosis is an exceptionally rare disease characterized by proliferation of fibrous tissue and inflammation in the *** features many symptoms in the kidneys and in other organs and usually leads to ureteral *** SUMMARY Here we present 9 consecutive cases of idiopathic retroperitoneal fibrosis(IRPF)in patients who presented to the Department of Nephrology or Department of Rheumatology,Xuanwu Hospital,Capital Medical University,Beijing,China,between January 2012 and June 2017 with ureteral obstruction due to external compression of the ureter that led to hydronephrosis and kidney *** tomography imaging was used to identify hydronephrosis and ureteral obstruction and to evaluate kidney *** patient was diagnosed with IRPF based on clinical observation and computed tomography examination *** restore kidney function,a retrograde metallic stent was placed in the ureter under X-ray guidance 2 d after each patient’s *** perioperative complications occurred in any patient,but postoperative complications occurred in two patients as follows:Patient 2 had stent migration and repeated metallic stent infections that resolved with treatment;and patient 4 had postoperative hematuria because he resumed normal activities too soon after stent placement(contrary to instruction).Placement of the metallic ureteral stents provided relief from ureteral obstruction and restored kidney function in all *** Our 9-case series underscores the utility and efficacy of applying the Resonance®metallic ureteral stent to treat ureteral obstruction in patients with *** all retroperitoneal fibrosis cases in our series,ureteral stents provided effective relief and were shown to reduce the incidence rate of perioperative and postoperative complications.

关键词： Retroperitoneal fibrosis Metallic ureteral stent Ureteral obstruction Computed tomography Kidney function Plastic stent Case report

Negative tunnel magnetoresistance in a quantum dot induced by interplay of a Majorana fermion and thermal-driven ferromagnetic leads

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Chinese Physics B 2021年第9期30卷 495-498页

作者： Peng-Bin Niu bo-Xiang cui Hong-Gang Luo Department of Physics Shanxi Datong UniversityDatong 037009China School of Physical Science and Technology Lanzhou UniversityLanzhou 730000China Beijing Computational Science Research Center Beijing 100084China

We investigate the spin-related currents and tunnel magnetoresistance through a quantum dot,which is side-coupled with a Majorana fermion zero mode and two thermal-driven ferromagnetic *** is found that the interplay of Majorana fermion and electrodes'spin polarization can induce a nonlinear thermal-bias spin *** interplay also decreases the total magnitude of spin or charge current,in either parallel or antiparallel *** addition,a thermal-driven negative tunnel magnetoresistance is found,which is an unique feature to characterize Majorana *** large temperature difference,a step phenomenon is observed in gate tuned spin-up *** the coupling between quantum dot and topological superconductor is strong enough,this step will evolve into a linear relation,revealing Majorana fermion's robustness.

关键词： Majorana fermion spin current tunnel magnetoresistance thermal-bias

Real-Time Spreading Thickness Monitoring of High-core Rockfill Dam Based on K-nearest Neighbor Algorithm

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Transactions of Tianjin University 2018年第3期24卷 282-289页

作者： Denghua Zhong Rongxiang Du bo cui Binping Wu Tao Guan State Key Laboratory of Hydraulic Engineering Simulation and Safety School of Civil EngineeringTianjin University

During the storehouse surface rolling construction of a core rockfilldam, the spreading thickness of dam face is an important factor that affects the construction quality of the dam storehouse' rolling surface and the overallquality of the entire dam. Currently, the method used to monitor and controlspreading thickness during the dam construction process is artificialsampling check after spreading, which makes it difficult to monitor the entire dam storehouse surface. In this paper, we present an in-depth study based on real-time monitoring and controltheory of storehouse surface rolling construction and obtain the rolling compaction thickness by analyzing the construction track of the rolling machine. Comparatively, the traditionalmethod can only analyze the rolling thickness of the dam storehouse surface after it has been compacted and cannot determine the thickness of the dam storehouse surface in realtime. To solve these problems, our system monitors the construction progress of the leveling machine and employs a real-time spreading thickness monitoring modelbased on the K-nearest neighbor algorithm. Taking the LHK core rockfilldam in Southwest China as an example, we performed real-time monitoring for the spreading thickness and conducted real-time interactive queries regarding the spreading thickness. This approach provides a new method for controlling the spreading thickness of the core rockfilldam storehouse surface.

关键词： Core rockfill dam Dam storehouse surface construction Spreading thickness K-nearest neighbor algorithm Real-time monitor

Improvement of myocardial injury and gut microbiota disturbance in type 2 diabetic mice by inulin with various degrees of polymerization

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Food Bioscience 2023年第1期51卷 995-1004页

作者： Siqiang Jia Jianpeng Li Bin Yu Mengjie Li bo cui State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan250353China School of Food Science and Engineering Qilu University of TechnologyShandong Academy of SciencesJinanShandong250353China

This study is to explore the effects of low-performance inulin(SI,DP10)on myocardial injury in type 2 diabetic mice fed a high-fat diet(HFD)and its underlying *** weeks of supplementation of type 2 diabetic mice with HI significantly improved blood glucose,insulin,and triglyceride levels in comparison with SI(pbolomics revealed that both SI and HI supplementation regulated tryptophan metabolism,bile acid metabolism,sphingolipid metabolism,and arachidonic acid metabolism,whereas HI supplementation increased prostaglandin h2 compared to *** summary,HI exhibited superior positive regulation of myocardial injury and gut microbiota dysfunction compared to SI.

关键词： Inulin Myocardial injury Type 2 diabetic mice Gut microbiota Fecal metabolome

Study on the spatiotemporal variability of eco-hydrological characteristics of the rivers in the Longitudinal Range-Gorge Region and their driving forces

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Chinese Science Bulletin 2007年第A02期52卷 122-133页

作者： HU bo cui BaoShan WEI GuoLiang ZHAI HongJuan REN HuaLi State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

Taking two typical rivers in high mountains and steep gorge areas as example,this paper analyzes the spetiotemporal variability of the eco-hydrological characteristics and the driving forces leading to ***,based on the species-environmental data processing,this paper adopts canonical correspondence analysis(CCA)method to identify the environmental factors influencing the distribu- tion of river bank ***,this study uses the ecological diversity Index to represent the spatiotemporel variability of ecological ***,this paper uses the multiple correlation method to analyze the relationship between the hydrological factors and meteorological factors,and to identify the key factors leading to the hydrological regime *** last,based on the analysis of basin water quality data,this paper analyzes the regularity of spatiotemporal variability and its driving *** the systematic analysis on the outcome,we could get that the spatiotemporel distribution of eco-hydrological characteristics shows the regular changes from the upstream to downstream(from the north to the south),and the spatiotemporal variability of eco-hydrological characteristics is typical from the east to the ***,aspect and water distribution are the primary natural driving forces leading to the spatiotemporel variability of eco-hydrological characteristics;and exploitation and op- eration of hydroelectric power station,construction of road on the river bank,and basin land utilization are the main human driving forces.

关键词：空间变化时间变化生态系统纵向岭谷区