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Chinese Journal of Polymer Science 2021年第3期39卷 355-364,I0007页

作者： ying-ying Ma Min Liu Jing-tao wang Bin Zhu yi-Fan Li School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China College of Chemistry Zhengzhou UniversityZhengzhou 450001China

Recently, hollow filler as an emerging concept is attracting more attention in preparation of mixed matrix membranes(MMMs). Herein,poly(ethylene glycol) microcapsules(PMC) are synthesized via distillation precipitation polymerization and embedded into the polyetherimide(Ultem■1000) matrix to fabricate MMMs for CO_(2) capture. The PMC exhibits a preferential hollow structure within the Ultem matrix to furnish highways within membrane, and thus achieve high gas permeability. Meanwhile, the favorable affinity of poly(ethylene glycol)(PEG)microcapsule with ether oxygen group(EO) towards CO_(2) enhances the CO_(2) solubility selectivity. Such integration of physical and chemical microenvironments in the as-designed PEG microcapsule affords highly enhanced CO_(2) separation performance. Compared to pristine Ultem■1000, the membrane with 2.5 wt% PMC loading exhibits 310% increment in CO_(2) permeability and 22% increment in CO_(2)/N_(2) selectivity,which shows the promising prospects of designing PEG-containing microcapsules as the filler of MMMs for CO_(2) capture.

关键词： Mixed matrix membranes(MMMs) Poly(ethylene glycol)microcapsules(PMC) Polyetherimide(Ultem^(■)1000) CO_(2) capture

600-MW_(e)high-temperature gas-cooled reactor nuclear power plant HTR-PM600

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Nuclear Science and Techniques 2022年第8期33卷 69-76页

作者： Zuo-yi Zhang Yu-Jie Dong Qi Shi Fu Li Hai-tao wang Institute of Nuclear and New Energy Technology of Tsinghua University Collaborative Innovation Center of Advanced Nuclear Energy TechnologyThe Key Laboratory of Advanced Reactor Engineering and SafetyMinistry of EducationBeijing 100084China Chinergy Co.Ltd Beijing 100193China

The HTR-PM600 high-temperature gas-cooled reactor nuclear power plant is based on the technology of the high-temperature gas-cooled reactor pebble-bed module(HTR-PM)demonstration *** utilizes proven HTR-PM reactor and steam generator modules with a thermal power of 250 MW_(th)and power generation of approximately 100 MW_(e)per *** modules in parallel,connected to a steam turbine,form a 600-MW_(e)nuclear power *** addition,its system configuration in the nuclear island is identical to that of the HTR-PM in which the technical risks are *** this principle,the HTR-PM600 achieves the same level of inherent safety as the *** concept of a ventilated lowpressure containment(VLPC)is unchanged;however,a large circular VLPC accommodating all six reactor modules is adopted rather than the previous small-cavity-type VLPC,which contains only one module,as defined for the *** layout of the nuclear island and its associated systems refer to single-unit pressurized water reactor(PWR)*** this layout,the HTR-PM600achieves a volume size of the nuclear island that is comparable to a domestic PWR of the same power *** will be a GenerationⅣnuclear energy technology that is economically competitive.

关键词： High-temperature gas-cooled reactor Module HTR-PM600 GenerationⅣ

Impacts of native vegetation on the hydraulic properties of the concentrated flows in bank gullies

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Journal of Mountain Science 2021年第4期18卷 907-922页

作者： SU Zheng-an HE Zhou-yao ZHOU tao wang Jun-jie wang Xiao-yi wang Li-juan FANG Hai-dong SHI Liang-tao LIU yi-han WU Zuo Key Laboratory of Mountain Surface Processes and Ecological Regulation Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Forestry College Sichuan Agricultural UniversityChengdu 611130China University of Chinese Academy of Sciences Beijing 100049China College of Water Conservancy and Hydropower Engineering Sichuan Agricultural UniversityYa’an 625014China lnstitute of Tropical Eco-agricultural Sciences Yunnan Academy of Agricultural SciencesYuanmou 651300China College of Geography and Resources Science Sichuan Normal UniversityChengdu 610101China

To quantify the impacts of native vegetation on the spatial and temporal variations in hydraulic properties of bank gully concentrated flows,a series of in situ flume experiments in the bank gully were performed at the Yuanmou Gully Erosion and Collapse Experimental Station in the dry-hot valley region of the Jinsha River,Southwest *** experiment involved upstream catchment areas withone-and two-year native grass(Heteropogon contortus)and bare land drained to bare gully headcuts,i.e.,Gullies 1,2 and *** Gully 4,Heteropogon contortus and Agave sisalana were planted in the upstream catchment area and gully bed,*** these experiments,the sediment concentration in runoff in Gully 3 was the highest and that in Gully 2 was the lowest,clearly indicating that the sediment concentration in runoff obviously decreased and the deposition of sediment obviously increased as the vegetation cover *** concentrated flows were turbulent in response to the flow *** concentrated flows in the gully zones with native grass and bare land were sub-and supercritical,*** flow rate and shear stress in Gully 3 upstream catchment area were highest among the four upstream catchment areas,while the flow rate and shear stress in the gully bed of Gully 4 were lowest among the four gully beds,indicating that native grass notably decreased the bank gully flow rate and shear *** Darcy–Weisbach friction factor(resistance f)and flow energy consumption in the gully bed of Gully 4 were notably higher than those in the other three gully beds,clearly indicating that native grass increased the bank gully surface resistance and flow energy *** Reynolds number(Re),flow rate,shear stress,resistance f,and flow energy consumption in the gully beds and upstream areas increased over time,while the sediment concentration in runoff and Froude number(Fr)***,increasing vegetation cover in upstream catchment areas and downstream gully

关键词： Soil erosion Indigenous grass species Bank gully Concentrated flows Flow energyconsumption Dry and hot valley

Application of steam injection in iron ore sintering:fuel combustion efficiency and CO emissions

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Journal of Iron and Steel Research International 2023年第1期30卷 31-39页

作者： yi-fan wang tao Yang Hao-yu wang Long Ding Yun-fei Luo Hong-ming Long School of Metallurgical Engineering Anhui University of TechnologyMa’anshan 243032AnhuiChina Department of Chemical/Biochemical Engineering Western UniversityLondon N6A 5B9OntarioCanada Key Laboratory of Metallurgical Emission Reduction&Resources Recycling(Anhui University of Technology) Ministry of EducationMa’anshan 243002AnhuiChina

Improving the combustion efficiency of fuels is essential to reducing pollutant emissions in the iron ore sintering *** sintering bed surface steam-injection technology has attracted significant research interest for its potential advantages in low-energy consumption and low *** effect of steam injection on fuel combustion efficiency and CO emission was studied by comparing the thermodynamic response from the sintering process before and after steam *** mechanism of improving combustion efficiency was also *** results indicated that the sintering gas medium of H_(2)O-H_(2)-N_(2)-O_(2) with the blown steam improved the heat transfer conditions of fuel combustion and promoted the water gas *** optimum state of steam injection was achieved at 15 min after ignition with 0.02 m^(3) min^(-1).The CO emission reduction is 10.91% compared with the base *** combustion efficiency was 88.83%,6.15% higher than conventional sintering,and the solid fuel consumption was reduced by 1.15 kg t^(-1).It was indicated that steam injection would improve combustion efficiency and reduce solid fuel ***,the steam injection could improve the combustion kinetic conditions in the zone of unburned fuel and low oxygen partial *** was conducive to the reaction of H_(2)O with C and CO to convert the CO of reducing atmosphere to CO_(2),which in turn realized the complete combustion of fuel and CO and improved the efficiency of fuel combustion.

关键词： Sintering Steam injection Fuel Combustion efficiency CO emission

Decoherence of Entangled States Calculated by a Systematic Approximate Method

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Communications in Theoretical Physics 2007年第5期47卷 791-800页

作者： LIU tao FAN Yun-Xia HUANG Shu-Weng wang Ke-Lin wang yi School of Sciences Southwest University of Science and Technology Mianyang 621010 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China Institute of Thin Films and Nano-materials Wuyi University Jiangmen 529020 China

In this paper the coherent-state approximation （CA） method is used to deal with the problem of the decoherence of the entangled states of two two-state systems. As the base of the discussion, the dissipation of one two-state system has been investigated at first. The improved results calculated by CA are given in the paper. It is shown that the right approaching behavior and scaling law have been obtained when CA is applied to the problem of dissipation of two two-state systems coupled with environment. The whole evolution process and calculated results of the decoherence of the entangled states show also the scaling law, right approaching behavior, and rich phenomenon.

关键词： decoherence coherent-state two-state

Microstructure and Abrasive Wear Behavior of Medium Carbon Low Alloy Martensitic Abrasion Resistant Steel

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Journal of Iron and Steel Research International 2014年第1期21卷 98-103页

作者： Xiang-tao DENG Zhao-dong wang yi HAN Hui ZHAO Guo-dong wang State Key Laboratory of Rolling and Automation Northeastern University Yangxi Harbor Electric Power Development Co. Ltd.

The effect of processing parameters such as hot rolling and heat treatment on microstructure and mechanical properties was investigated for a new 0.27mass% C and Ni, Mo-free low alloy martensitic abrasion resistant steel. The three-body impact abrasive wear behavior was also analyzed. The results showed that two-step controlled rolling besides quenching at 880 ℃ and tempering at 170 ℃ could result in optimal mechanical property., the Brinell hardness, tensile strength, elongation and --40 ℃ impact toughness were 531, 1530 MPa, 11.8% and 58 J, re- spectively. The microstructure was of fine lath martensite with little retained austenite. Three-body impact abrasive wear results showed that wear mechanism was mainly of plastic deformation fatigue when the impact energy was 2 J, and the relative wear resistance was 1.04 times higher than that of the same grade compared steel under the same working condition. The optimal hardness and toughness match was the main reason of higher wear resistance.

关键词： abrasion resistant steel processing parameter mechanical property relative wear resistance

Nonlinear effect induced in thermally poled glass waveguides

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第1期7卷 105-108页

作者： REN yi-tao COM Technical University of Denmark DK-2800 Kgs.Lyngby Denmark

Thermally poled germanium-doped channel waveguides are presented. Multilayer waveguides containing a silicon oxynitride layer were used as charge trapper in this investigation on the effect of the internal field inside the waveguide. Compared to waveguides without the trapping layer, experimental results showed that the induced linear electro-optic (EO) coefficient increases about 20% after poling, suggesting strongly that the internal field is relatively enhanced, and showed it is a promising means for improving nonlinearity by poling in waveguides.

关键词： Electro-optic (EO) effect Waveguides Glass Poling

Singularity radius gradient-based rapid singularity-escape steering law for SGCMGs

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Chinese Journal of Aeronautics 2020年第10期33卷 2728-2742页

作者： tao yi Yunhai GENG Baolin WU Research Center of Satellite Technology Harbin Institute of TechnologyHarbin 150080China

In order to visualize singularity of SGCMGs in gimbal angle space,a novel continuous bounded singularity parameter--Singularity Radius,whose sign can distinctly determine singularity type,is *** a rapid singularity-escape steering law is proposed basing on gradient of Singularity Radius and residual base vector to drive the SGCMG system to neighboring singular boundary,and quickly escape elliptic ***,simulation results on Pyramid-type and skew-type configuration demonstrate the effectiveness and rapidness of the proposed steering law.

关键词： Gaussian curvature Rapid singularity escape Single gimbal control moment gyroscope Singularity-escape steering law Singularity parameter Singularity type

Prognostic value of preoperative systemic immune-inflammation index/albumin for patients with hepatocellular carcinoma undergoing curative resection

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World Journal of Gastroenterology 2024年第48期30卷 5130-5151页

作者： Kun-Lin Chen yi-Wen Qiu Ming Yang tao wang yi Yang Hai-Zhou Qiu Ting Sun Wen-tao wang Department of Liver Surgery West China Hospital of Sichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Hepatocellular carcinoma(HCC)is a major factor for cancer-associated mortality *** the systemic immune-inflammation index(SII)and albumin(ALB)show individual prognostic value for various cancers,their combined significance(SII/ALB)in HCC patients undergoing curative hepatectomy is still *** is hypothesized that a higher SII/ALB ratio correlates with poorer outcomes with regard to overall survival(OS)and recurrence-free survival(RFS).AIM To investigate the effect of preoperative SII/ALB in predicting the prognosis of HCC patients undergoing *** Patients who received curative surgery for HCC at a single institution between 2014 and 2019 were retrospectively *** proportional hazards models and Kaplan-Meier curves were utilized to estimate OS and RFS.A nomogram was created using prognostic factors determined by the least absolute shrinkage and selection operator method and analyzed using multivariate Cox *** nomogram was assessed internally through the calibration plots,receiver operating characteristic(ROC)analysis,decision curve analysis(DCA)and the concordance index(C-index).RESULTS This study enrolled 1653 HCC *** analyses demonstrated that SII/ALB independently predicted OS[hazard ratio(HR)=1.22,95%CI:1.03-1.46,P=0.025]and RFS(HR=1.19,95%CI:1.03-1.38,P=0.022).Age,alpha-fetoprotein,hepatitis B surface antigen,albumin-bilirubin grade,tumor diameter,portal vein tumor thrombus,tumor number,and SII/ALB were incorporated into the nomogram to predict *** nomogram had a C-index of 0.73(95%CI:0.71-0.76)and 0.71(95%CI:0.67-0.74)for the training and validation cohorts,*** area under the ROC curve,DCA and calibration curves demonstrated high accuracy and clinical *** The SII/ALB may independently predict outcomes in HCC patients who receive curative surgical *** addition,the nomogram can be used in HCC treatment decision-making.

关键词： Hepatocellular carcinoma Inflammation Systemic immune-inflammation index/albumin Liver resection Prognosis

Sister Mary Joseph’s nodule in endometrial carcinoma: A case report

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World Journal of Clinical Cases 2019年第20期7卷 3358-3363页

作者： Yang Li Peng Guo Bin wang yi-tao Jia Third Department of Oncology Hebei General HospitalShijiazhuang 050051Hebei ProvinceChina North China University of Science and Technology Tangshan 063000Hebei ProvinceChina Department of Orthopedics The Fourth Hospital of Hebei Medical UniversityShijiazhuang 050000Hebei ProvinceChina

BACKGROUND Sister Mary Joseph’s nodule(SMJN)is rare and may occur independently or simultaneously with malignant tumors in the abdominal *** has a poor *** carcinoma is the most common malignant tumor in the upper segment of the female reproductive tract;however,it rarely occurs with *** here report a case of endometrial carcinoma with *** SUMMARY A 75-year-old woman was diagnosed with endometrial cancer>2 years *** multiple cycles of chemotherapy,an obvious but painless umbilical mass was detected 2 wk before *** patient did not undergo surgical treatment but received chemotherapy,which was different from previous chemotherapy,for three consecutive cycles after discovery of umbilical ***,the umbilical metastatic tumor has reduced,and the quality of life of the patient has significantly *** Once the umbilical mass is found,the possibility of SMJN should be *** should also take into account the poor prognosis of endometrial carcinoma complicated with umbilical metastasis,especially in patients with advanced tumors,and it is important to choose an appropriate treatment.

关键词： Endometrial cancer Sister Mary Joseph’s nodule Umbilical metastasis Chemotherapy Surgery Case report