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Impact of Wind on Tide-Induced Advective Salt Transport in A Well- Mixed Estuary

China Ocean Engineering 2021年第1期35卷 107-122页

作者： CHEN wei-lun ZHU Yu-liang KONG Jun chu Ao ZHANG wei-sheng State Key Laboratory of Hydrology Water Resources and Hydraulic EngineeringHohai UniversityNanjing 210098China Key Laboratory of Coastal Disaster and Defence of Ministry of Education Hohai UniversityNanjing 210098China College of Harbour Coastal and Offshore EngineeringHohai UniversityNanjing 210098China Key Laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation Ministry of Water ResourcesGuangzhou 510610China Faculty of Civil Engineering and Geosciences Section of Hydraulic EngineeringDelft University of Technology2600 GA DelftThe Netherlands

The tide-induced net advective salt flux in well-mixed estuaries consists of five terms according to the method from *** term resulted from the vertical variation in salinity can be negligible in well-mixed estuaries with four tide-induced salt flux terms,known as F1−*** explore the effects of wind on these salt fluxes,the current-salinity analytical model combined with the perturbation analysis is extended by including *** expressions for the four salt fluxes are derived separately in the present *** the assumption that only the M_(2) tidal component is accounted for and the salt flux generated by diffusion is not studied,the tide-induced net advective salt flux Q_(sx) is in the seaward direction without the wind *** applying the Western Scheldt estuary case,the wind influence on the tidal advection salt flux(TASF)distribution in the F4 term was *** phase difference between zero-order velocity and first-order salinity(Δφ)at the surface layer of the estuary is larger than 90°and smaller than 90°at the bottom layer,which leads to landward TASF in the surface layer and seaward TASF in the bottom *** distribution ofΔφis not uniform in the horizontal direction with wind included,which differs from the result without *** the case of seaward wind with the speed of 18 m/s,the decrease in the zeroth-order velocity phase(φu)at the surface layer is larger than that of the first-order salinity phase(φs)downstream,which leads to an abnormal seaward TASF in this *** to the surface stress caused by wind,the Stokes compensation flow in the middle and lower reaches increases/decreases with the increase of the landward/seaward wind,while the upstream situation is ***,the first-order velocity in the middle and lower reaches increases/decreases with the increase of the landward/seaward wind,while the upstream situation is also *** first-order salinity also increases/decreases with the increase of la

关键词： tide-induced net advective salt flux analytical expression wind effect well-mixed estuary Western Scheldt Estuary

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Effects of preparation methods on the performance of Cu-Mo-Fe-O_x in the hydrogen production from water

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Journal of Natural Gas Chemistry 2011年第5期20卷 553-557页

作者： Si Chen wei chu Xu Liu Dongge Tong College of Chemical Engineering Sichuan University Chengdu 610065 Sichuan China College of Materials and Chemistry ＆ Chemical Engineering Chengdu University of Technology Chengdu 610059 Sichuan China

Two Cu-Mo-Fe-Ox samples, which can store and supply pure hydrogen through repeated redox reaction （Fe3O4＋4H23Fe＋4H2O）, were prepared by co-precipitation （FCM-C） and impregnation （FCM-I） methods, respectively, and the performance of hydrogen production from water were investigated. Compared with the impregnated sample, the co-precipitation sample presented better catalytic activity. The samples were characterized by X-ray diffraction （XRD）, field emission scanning electron microscopy （FE-SEM）, X-ray photoelectron spectroscopy （XPS）, Fourier transform infrared spectroscopy （FT-IR） and temperature-programmed reduction （H2-TPR） techniques. XRD, FE-SEM and XPS results suggest that the FCM-C sample has smaller particle size and higher dispersion of iron oxide than that of FCM-I sample. In addition, FT-IR and H2-TPR analyses indicate that the weak interaction among metal oxides in FCM-C sample may induce facile reduction of active metal and superior property of hydrogen production by decomposing water in success

关键词： catalytic activity hydrogen production redox water decomposition

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Growth of carbon nanotubes on the novel FeCo-Al_2O_3 catalyst prepared by ultrasonic coprecipitation

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Journal of Natural Gas Chemistry 2010年第2期19卷 156-160页

作者： Jie Wen wei chu Chengfa Jiang Dongge Tong Department of Chemical Engineering Sichuan University Chengdu 610065 Sichuan China College of Materials and Chemistry ＆ Chemical Engineering Chengdu University of Technology Chengdu 610059 Sichuan China

FeCo-Al2O3 catalyst was prepared by an ultrasonic coprecipitation （UC） method for the growth of carbon nanotubes （CNTs） from catalytic decomposition of *** catalytic performance was compared with that of the FeCo-Al2O3 catalyst counterparts prepared by stepwise impregnation （I） and conventional coprecipitation （C） methods,*** structure and properties of the catalysts and the CNTs as produced thereon were investigated by means of XRD,XPS,TEM and N2 adsorption *** was found that the catalyst prepared by the ultrasonic coprecipitation method was more active,and the yield and purity of the synthesized CNTs were promoted *** XPS results revealed that there were more active components on the surface of the catalyst prepared by the ultrasonic coprecipitation *** the other hand,N2 adsorption demonstrated that the catalyst prepared by the ultrasonic coprecipitation method conferred larger specific surface area,which was beneficial to dispersion of active *** images further confirmed its higher *** factors could be responsible for its higher activity for the growth of CNTs from catalytic decomposition of methane.

关键词： carbon nanotubes ultrasonic coprecipitation FeCo-Al2O3 catalyst chemical vapor deposition (CVD)

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Real-time rock mass condition prediction with TBM tunneling big data using a novel rock-machine mutual feedback perception method

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第6期13卷 1311-1325页

作者： Zhijun Wu Rulei wei Zhaofei chu Quansheng Liu School of Civil Engineering Wuhan UniversityWuhan430072China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan430072China

Real-time perception of rock mass information is of great importance to efficient tunneling and hazard prevention in tunnel boring machines(TBMs).In this study,a TBM-rock mutual feedback perception method based on data mining(DM) is proposed,which takes 10 tunneling parameters related to surrounding rock conditions as input *** implementation,first,the database of TBM tunneling parameters was established,in which 10,807 tunneling cycles from the Songhua River water conveyance tunnel were ***,the spectral clustering(SC) algorithm based on graph theory was introduced to cluster the TBM tunneling *** to the clustering results and rock mass boreability index,the rock mass conditions were classified into four classes,and the reasonable distribution intervals of the main tunneling parameters corresponding to each class were ***,based on the deep neural network(DNN),the real-time prediction model regarding different rock conditions was ***,the rationality and adaptability of the proposed method were validated via analyzing the tunneling specific energy,feature importance,and training dataset *** proposed TBM-rock mutual feedback perception method enables the automatic identification of rock mass conditions and the dynamic adjustment of tunneling parameters during TBM ***,in terms of the prediction performance,the method can predict the rock mass conditions ahead of the tunnel face in real time more accurately than the traditional machine learning prediction methods.

关键词： Tunnel boring machine(TBM) Data mining(DM) Spectral clustering(SC) Deep neural network(DNN) Rock mass condition perception

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Prevention and treatment of gastrointestinal dysfunction following severe burns: A summary of recent 30-year clinical experience

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World Journal of Gastroenterology 2008年第20期14卷 3231-3235页

作者： shi-chu Xiao shi-Hui Zhu Zhao-Fan Xia wei Lu Guang-Qing Wang Dao-Feng Ben Guang-Yi Wang Da-Sheng Cheng Department of Burn Surgery Changhai HospitalSecond Military Medical University 174 Changhai RoadShanghai 200433 China

AIM： To sum up the recent 30-year experience in the prevention and treatment of gastrointestinal dysfunction in severe burn patients, and propose practicable guidelines for the prevention and treatment of gastrointestinal （GI） dysfunction. METHODS： From 1980 to 2007, a total of 219 patients with large area and extraordinarily large area burns （LAB） were admitted, who were classified into three stages according the therapeutic protocols used at the time： Stage 1 from 1980 to 1989, stage 2 from 1990 to 1995, and stage 3 from 1996 to 2007. The occurrence and mortality of GI dysfunction in patients of the three stages were calculated and the main causes were analyzed. RESULTS： The occurrence of stress ulcer in patients with LAB was 8.6% in stage 1, which was significantly Dower than that in stage 1 （P 〈 0.05）. No massive hemorrhage from severe stress ulcer and enterogenic infections occurred in stages 2 and 3. The occurrence of abdominal distension and stress ulcer and the mortality in stage 3 patients with extraordinarily LAB was 7.1%, 21.4% and 28.5%, respectively, which were significantly lower than those in stage 1 patients （P 〈 0.05 or P 〈 0.01）, and the occurrence of stress ulcer was also significantly lower than that in stage 2 patients （P 〈 0.05）. CONCLUSION： Comprehensive fluid resuscitation, early excision of necrotic tissue, staged food ingestion, and administration of specific nutrients are essential strategies for preventing gastrointestinal complications and lowering mortality in severely burned patients.

关键词： Severe burn Gastrointestinal function Fluid resuscitation Staged food ingestion

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TETRAHEDRAL C^m INTERPOLATION BY RATIONAL FUNCTIONS

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Journal of Computational Mathematics 2001年第2期19卷 131-138页

作者： Guo-liang Xu chuan I chu wei-min Xue State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering ComputingAcademy of Mathematics an d Systems SciencesChinese Academy of SciencesBeijing 100080China Department of Mathematics Hong Kong Baptist UniversityKowloonHong Kong

A general local C-m(m greater than or equal to 0) tetrahedral interpolation scheme by polynomials of degree 4m + 1 plus low order rational functions from the given data is proposed. The scheme can have either 4m + 1 order algebraic precision if C-2m data at vertices and C-m data on faces are given or k + E[k/3] + 1 order algebraic precision if C-k (k less than or equal to 2m) data are given at vertices. The resulted interpolant and its partial derivatives of up to order m are polynomials on the boundaries of the tetrahedra.

关键词： C-m interpolation rational functions tetrahedra

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A square-framed ME composite with inherent multiple resonant peaks for broadband magnetoelectric response

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Science Bulletin 2017年第17期62卷 1177-1180页

作者： Zhaoqiang chu Xiangyu Gao weiliang shi MohammdJavad PourhosseiniAsl Shuxiang Dong Department of Materials Science and Engineering College of Engineering.Peking UniversityBeijing 100871China

Since the last two decades,magnetoelectric(ME)materials have been attracting considerable interest due to the potential applications,particularly in terms of magnetic field sensors,multimode energy harvesters,microelectromechanical systems,tunable microwave devices,tunable bandpass/bandstop filters,tunable phase shifters and spintronics,etc.[1,2].ME effect

关键词：复合材料共振峰电响应宽频带 BaTiO3 方形磁场传感器微机电系统

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Bioelectrical impedance analysis-guided fluid management promotes primary fascial closure after open abdomen:a randomized controlled trial

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Military Medical Research 2022年第2期9卷 193-204页

作者： Kai Wang shi-Long Sun Xin-Yu Wang Cheng-Nan chu Ze-Hua Duan Chao Yang Bao-Chen Liu wei-wei Ding wei-Qin Li Jie-Shou Li Division of Trauma and Surgical Intensive Care Unit Research Institute of General SurgeryJinling HospitalMedical School of Nanjing UniversityNo.305 East Zhongshan RoadNanjing 210002China Division of Trauma and Surgical Intensive Care Unit Research Institute of General Surgerythe First School of Clinical MedicineSouthern Medical UniversityNanjing 210002China

Background:Fluid overload(FO)after resuscitation is frequent and contributes to adverse outcomes among postinjury open abdomen(OA)*** impedance analysis(BIA)is a promising tool for monitoring fluid status and ***,we sought to investigate the efficacy of BIA-directed fluid resuscitation among OA ***:A pragmatic,prospective,randomized,observer-blind,single-center trial was performed for all trauma patients requiring OA between January 2013 and December 2017 to a national referral center.A total of 140 postinjury OA patients were randomly assigned in a 1:1 ratio to receive either a BIA-directed fluid resuscitation(defined as BIA)protocol that included fluid administration with monitoring of hemodynamic parameters and different degrees of interventions to achieve a negative fluid balance targeting the hydration level(HL)measured by BIA or a traditional fluid resuscitation(TRD)in which clinicians determined the fluid resuscitation regimen according to traditional parameters during 30 d of intensive care unit(ICU)*** primary outcome was the 30-day primary fascial closure(PFC)*** secondary outcomes included the time to PFC,postoperative 7-day cumulative fluid balance(CFB)and adverse events within 30 d after *** Kaplan–Meier method and the log-rank test were utilized for PFC after OA.A generalized linear regression model for the time to PFC and CFB was ***:A total of 134 patients completed the trial(BIA,n=66;TRD,n=68).The BIA patients were significantly more likely to achieve PFC than the TRD patients(83.33%vs.55.88%,P<0.001).In the BIA group,the time to PFC occurred earlier than that of the TRD group by an average of 3.66 d(P<0.001).Additionally,the BIA group showed a lower postoperative 7-day CFB by an average of 6632.80 ml(P<0.001)and fewer ***:Among postinjury OA patients in the ICU,the use of BIA-guided fluid resuscitation resulted in a higher PFC rate and fewer severe complicat

关键词： Trauma Open abdomen Fluid overload Fluid resuscitation Primary fascial closure Bioelectrical impedance analysis

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Case Report:Metastasis of gastric carcinoma to the thyroid and lung:a case report and review of literature

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第7期11卷 542-546页

作者： Hwa-chan LEE Fen-fen CHEN Ching-chu LO chung-jing WANG wei-chun LO shi-ping LUH Department of Surgery St. Martin de Porres Hospital Chia-Yi City 60069 Taiwan China 2Department of Emergency Medicine St Martin de Porres Hospital Chia-Yi City 60069 Taiwan China Department of Pathology St. Martin de Porres Hospital Chia- Yi City 60069 Taiwan. China Department of Gastroenterology St. Martin de PorresHospital Chia-Yi City 60069 Taiwan China

Cancer metastasis to the thyroid is extremely rare. The more commonly reported primary sites for metastasis to the thyroid are the kidney, breast, lung, colon, esophagus, and uterus. Thyroid metastasis from the stomach has only been reported in three cases. Herein, we report a 71-year-old man presenting with bilateral thyroid multinodular lesions. Bilateral near-total thyroidectomy was performed due to airway compression with related symptoms. Wedge resection of a suspicious pulmonary nodule, detected on CT, was performed for diagnosis. Polypoid lesions in the stomach were examined by trans-scopic biopsy. Poorly differentiated adenocarcinomas with the same histological profiles were noted at these three sites. The immunohistochemical staining for thyroglobulin of these specimens was negative. We conclude that a new thyroid mass appearing in a patient with present or prior malignancies should raise the concern of metastatic disease.

关键词： Gastric carcinoma Thyroid metastasis Lung metastasis

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Recognition and Causes of Risks of Urban Stock Land Use Alteration

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学术界 2017年第4期 314-323页

作者： chu Yeqing Sun wei Center for Urban Management Research Anhui Jianzhu University Central sub-branch of the People's Bank of China

In China,a more strict approval system has been introduced against urban stock land use alteration,but the uncertainty of this system,due to its unclear statement on disposition,restraints and profit sharing,makes landuse alteration come along with risks of return loss of state-owned real property,recycling of stock land,imbalance of interest sharing,embezzlement of public land and pollution of industrial land. Causes of risks are directly linked to behaviors and decisions of major interest holders. In this paper,those causes are studied through the analysis of interest game between local governments,original land users,and property developers. The prevention and control of those risks requires balance of interest between interest holders to make possible multiple parties' engagement and interest sharing.

关键词：城市存量土地利用变更土地循环利用中国土地管理

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