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Science China Earth Sciences 2019年第4期62卷 719-732页

作者： Shun YU Wen CHEN Jingbo SUN ze shen Laboratory of Isotope Thermochronology Institute of Geology Chinese Academy of Geological Sciences Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological Sciences

To gain a better quantitative understanding of zircon(U-Th)/He ages and evaluate the applicability of zircon(U-Th)/He dating, the diffusion characteristics, He diffusion kinetics, helium partial retention zone(HePRZ), closure temperature, and(U-Th)/He ages were investigated using high-precision laboratory step heating experiments based on the thermally activated diffusion process. The ln(D/a^2) in Fish Canyon Tuff(FCT) zircons determined from laboratory step heating experiments was negatively correlated with reciprocal temperature, as expected for thermally activated volume diffusion. The zircon activation energies ranged from 144 to 184 kJ mol^(-1) with a mean of 169±12 kJ mol^(-1). The closure temperatures ranged from 144 to 216°C(a cooling rate of 10°C Ma^(-1) and an effective grain radius of 38–60 μm) with an average of 176±18°C. The calculated closure temperature increased with increasing cooling rate, yielding an average zircon He closure temperature of ～136°C at a slow cooling rate of 0.1°C Ma^(-1), whereas the closure value was ～199°C at a cooling rate of 100°C Ma^(-1). The closure temperature increased with the equivalent spherical radius assuming a constant cooling rate. The He ages from FCT zircons were negligibly affected by grain size because of the rapid cooling. He preserved in the zircon was sensitive to temperature and holding time, and the temperature range for zircon HePRZ gradually decreased with increasing holding time. The(U-Th)/He ages from 26 FCT zircons yielded an algorithmic mean of 28.3±0.3 Ma(S.E.) and a geometric mean of 28.4±0.3 Ma(S.E.), consistent with the ages of 28.4±1.9 Ma reported by other laboratories. The FCT zircons were characterized by rapid cooling, young(U-Th)/He ages with good reproducibility, and low alpha doses. Weak correlations between the He ages and effective uranium(eU) concentrations from the FCT zircons indicated radiation damage did not significantly affect He diffusivity.

关键词： Zircon Helium diffusion (U-Th)/He Closure temperature Thermochronometry

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Current status of radical laparoscopy for treating hepatocellular carcinoma with portal hypertension

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World Journal of Clinical Cases 2021年第11期9卷 2419-2432页

作者： ze-Feng shen Xiao Liang Department of General Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016Zhejiang ProvinceChina

The laparoscopic technique is clinically effective in treating hepatocellularcarcinoma (HCC) with portal hypertension (PHT). However, existing studies lacksystematic arrangement and induction. Here, we review the latest researchadvancement in laparoscopic technique for treatment of HCC with PHT, based onpublished literature and our single-institution experience. Our single-centerexperience reveals no statistical difference in both short- and long-term prognosisof HCC patients after laparoscopic liver resection (LLR), regardless of whetherthey suffer from PHT, which is consistent with previous studies on the use of LLRfor HCC with PHT. Retrieval outcomes indicate existence of short- and long-termprognostic superiority, following laparoscopic treatment, relative to nonlaparoscopictreatment. Besides that, LLR offers long-term prognostic advantagecompared to laparoscopic radiofrequency ablation. In addition, we review theprevious literature and propose corresponding perspectives on the therapy ofhypersplenism, the utilization of Pringle maneuver, and the adoption ofanatomical hepatectomy during radical laparoscopic treatment. HCC with PHT isnot the "forbidden zone" of radical laparoscopic treatment. However, patients’preoperative liver function should be adequately estimated.

关键词： Hepatocellular carcinoma Portal hypertension Radical laparoscopic treatment

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Generation of Entanglement for Coherent Excitonic States in Coupled Quantum Dots in a Microcavity

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Communications in Theoretical Physics 2008年第9期50卷 661-663页

作者： YIN Miao CHENG ze shen Lei-Lei Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

We investigate the generation of entanglement of coherent excitonic states in coupled quantum dots placed in a cavity by meaning of the state preparation fidelity [Nature （London） 404 （2002） 256; Phys. Rev. A 65 （2002） 012107; J. Uffink, Phys. Rev. Lett. 88 （2002） 230406.] The effect of the number of excitons and the coherent intensity ｜α｜ of the cavity field on the entanglement is also studied.

关键词： entanglement state preparation fidelity quantum dots

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Primary follicular lymphoma in the renal pelvis:A rare case report

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World Journal of Clinical Cases 2021年第21期9卷 6026-6031页

作者： Xun-ze shen Chen Lin Fang Liu PET/CT Center Shaoxing People's Hospital(Shaoxing HospitalZhejiang University School of Medicine)Shaoxing 312000Zhejiang ProvinceChina Department of Pathology Shaoxing People's Hospital(Shaoxing HospitalZhejiang University School of Medicine)Shaoxing 312000Zhejiang ProvinceChina

BACKGROUND Follicular lymphoma(FL)is more common in lymph nodes,while primary extranodal lymphomas are *** tract lymphoid neoplasms are extremely rare,accounting for less than 5%of all extranodal *** one case of FL from the renal pelvis has previously been *** SUMMARY A 70-year-old male patient with a history of esophageal cancer visited our hospital for follow-up *** computed tomography revealed a malignant mass in the right renal *** whole-body positron emission tomography/computed tomography showed a significant increase in fluorodeoxyglucose uptake of this soft tissue mass and no abnormal fluorodeoxyglucose uptake in the esophageal *** patient underwent radical resection of a malignant tumor in the right kidney,which was confirmed by postoperative pathology to be *** patient received no radiation or chemotherapy after surgery,and no recurrence of lymphoma or other malignant tumors was found at the 1-year *** Extranodal FL is more common in the skin and gastrointestinal tract but rarely occurs in the urinary *** is the second report of primary renal *** extranodal FL is expected to have a favorable prognosis and can be cured by local resection.

关键词： Lymphoma Follicular lymphoma Renal pelvis Imaging Resection Case report

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Numerical modeling of earthen dam breach due to piping failure

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Water Science and Engineering 2019年第3期12卷 169-178页

作者： sheng-shui Chen Qi-ming Zhong Guang-ze shen Department of Geotechnical Engineering Nanjing Hydraulic Research Institute Nanjing 210024 China Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-rock Dam of the Ministry of Water Resources Nanjing 210029 China Department of Dam Safety Management Nanjing Hydraulic Research Institute Nanjing 210029 China

Based on model tests of earthen dam breach due to piping failure, a numerical model was developed.A key difference from previous research is the assumption that the cross-section of the pipe channel is an arch, with a rectangle at the bottom and a semicircle at the top before the collapse of the pipe roof, rather than a rectangular or circular cross-section.A shear stress-based erosion rate formula was utilized, and the arched pipe tunnel was assumed to enlarge along its length and width until the overlying soil could no longer maintain *** flow and open channel flow were adopted to calculate the breach flow discharge for pressure and free surface flows, *** collapse of the pipe roof was determined by comparing the weight of the overlying soil and the cohesion of the soil on the two sidewalls of the *** the collapse, overtopping failure dominated, and the limit equilibrium method was adopted to estimate the stability of the breach slope when the water flow *** addition, incomplete and base erosion, as well as one-and two-sided breaches were taken into *** USDAARS-HERU model test P1, with detailed measured data, was used as a case study, and two artificially filled earthen dam failure cases were studied to verify the *** analysis demonstrates that the proposed model can provide satisfactory results for modeling the breach flow discharge and breach development *** analysis shows that the soil erodibility and initial piping position significantly affect the prediction of the breach flow ***, a comparison with a well-known numerical model shows that the proposed model performs better than the NWS BREACH model.

关键词： Earthen dam Piping failure Overtopping failure Breach flow Numerical modeling Sensitivity analysis

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Late Mesozoic Tectono-Thermal History in the South Margin of Great Xing’an Range,NE China:Insights from Zircon and Apatite(U-Th)/He Ages

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Journal of Earth Science 2022年第1期33卷 36-44页

作者： Wen Zhang Shuangfeng Zhao Jingbo Sun ze shen Wen Chen Laboratory of Isotope Thermochronology Key Laboratory of Deep-Earth Dynamics of Ministry of Natural ResourcesInstitute of GeologyChinese Academy of Geological SciencesBeijing 100037China

The Late Mesozoic tectono-thermal evolution and geodynamic setting of the Great Xing’an Range(GXR),particularly in the south margin,are still *** this study,we present original low-temperature thermochronological data of six granitoid samples collected from Maanzi pluton in the south margin of the *** apatite and zircon(U-Th)/He ages vary of 70.8 ± 4.3-119.0 ±7.0 Ma and 120.0 ± 7.1-146.7 ± 8.7 Ma,*** numerical inverse modeling results reveal that the granitoid plutons experienced a rapid cooling and exhumation stage during Early Cretaceous with a rate of ~5.0-6.0 ℃/Ma and ~0.14-0.17 mm/yr,respectively,including the western minor pluton emplaced during Early Permian and the major pluton crystallized in latest Jurassic,corresponding to the extensional tectonics in NE *** rapid exhumation processes in the south margin of the GXR during the Early Cretaceous could be related to both the rollback of Paleo-Pacific oceanic plate and the collapse of thickened crust in the Mongol-Okhotsk Orogen.

关键词： Great Xing’an Range tectono-thermal history (U-Th)/He dating extensional tectonics Mongol-Okhotsk collapse Paleo-Pacific subduction geochemistry

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Clinical and computed tomography features of adult abdominopelvic desmoplastic small round cell tumor

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World Journal of Gastroenterology 2014年第17期20卷 5157-5164页

作者： Xun-ze shen Jian-Guo Zhao Jian-Jun Wu Fang Liu Department of Radiology Shaoxing People’s Hospital Shaoxing Hospital of Zhejiang University Department of Radiotherapy Shaoxing People’s Hospital Department of Radiology Second Affiliated Hospital of Medical SchoolZhejiang University Department of Pathology Shaoxing People’s Hospital

To investigate the clinical and computed tomography(CT)features of desmoplastic small round cell tumor(DSRCT),we retrospectively analyzed the clinical presentations,treatment and outcome,as well as CT manifestations of four cases of DSRCT confirmed by surgery and *** CT manifestations of DSRCT were as follows:(1)multiple soft-tissue masses or diffuse peritoneal thickening in the abdomen and pelvis,with the dominant mass usually located in the pelvic cavity;(2)masses without an apparent organbased primary site;(3)mild to moderate homogeneous or heterogeneous enhancement in solid area on enhanced CT;and(4)secondary manifestations,such as ascites,hepatic metastases,lymphadenopathy,hydronephrosis and *** prognosis and overall survival rates were generally *** used treatment strategies including aggressive tumor resection,polychemotherapy,and radiotherapy,showed various therapeutic *** of DSRCT shows characteristic features that are helpful in *** discovery and complete resection,coupled with postoperative adjuvant chemotherapy,are important for prognosis of *** abdominopelvic rather than locoregional radiotherapy is more effective for unresectable DSRCT.

关键词： Desmoplastic small round cell tumor Peritoneum Pathology Computed tomography Clinical features

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An efficient ionic liquid supported divergent assembly of 3,6-branched glucosamine-containing pentasaccharide

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Chinese Chemical Letters 2014年第12期25卷 1525-1530页

作者： ze-shen Gao sheng Sun Wei Li Qing Ma Qing Li Zhong-Jun Li The State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking University

We utilized the glycosyl acceptor tagging method with ionic liquid support for synthesis of the core segment of Clostridium botulinum C2 toxin ligand through a divergent synthetic strategy without chromatographic *** total yield was 57.1% and the reaction was completed in 10 *** efficient ionic liquid supported glycosylation and purification procedure was applied for the synthesis of branched glucosamine-containing oligosaccharides for the first time,which expanded the scope of ionic liquid supported synthesis of biologically important oligosaccharides.

关键词： Ionic liquid Oligosaccharide Rapid assembling

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Primary histiocytic sarcoma of the stomach:A case report with imaging findings

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World Journal of Gastroenterology 2013年第3期19卷 422-425页

作者： Xun-ze shen Fang Liu Rui-Jun Ni Bo-Yin Wang Department of Radiology Shaoxing People's Hospital Shaoxing Hospital of Zhejiang University Department of Pathology Shaoxing People's Hospital

Histiocytic sarcoma(HS)is a rare malignant neoplasm that originates from a histiocytic hematopoietic lineage characterized by histiocytic differentiation and its corresponding immunophenotypic *** herein reported a case of primary HS of the stomach which was confirmed through histopathologic examination and immunohistochemical staining.A 52-year-old woman presented with progressive difficulty in feeding and dull pain in the epigastric ***,endo-scopic ultrasonography,double contrast examination, and computed tomography revealed a mass located on the posterior wall of fundus and lesser curvature of the ***,the cytoplasm of the tumor cells was abundant and ***-chemical staining revealed that the tumor cells were positive for CD45RO and *** is difficult to differentiate HS of stomach from other gastric malignancies by radiological evaluation ***,HS may be considered when a protruding and ulcerated mass in stomach shows heterogeneous hypervascular *** the best of our knowledge,this is the first report in English language literature that emphasizes the imaging findings of human gastric HS.

关键词： Histiocytic sarcoma Stomach Primary Endoscopic ultrasonography Gastroscope Double contrast examination Computed tomography

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Surface Modification Mechanism of Fine Coal by Electrochemical Methods

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Journal of China University of Mining and Technology 2006年第2期16卷 180-183页

作者： ZHU Hong WANG Fang-hui WANG Dian-zuo OU ze-shen School of Science Beijing Jiaotong University Beijing 100044 China Beijing General Research for Non-Ferrous Metals Beijing 100088 China School of Chemical Engineering and Environment China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

In order to reveal the surface modification mechanism of fine coal by electrochemical methods, the structural changes of the coal surface before and after electrochemical modification were investigated by Fourier Transform In- frared Spectra (FTIR) and Raman Spectra. The results show that under certain electrochemical conditions, the oxy- gen-containing functional group in the coal structure and the oxygen content of absorption could be reduced and the floatability of coal improved. At the same time, the sulfur in the coal was reduced to the hydrophilic S2– which could be separated easily from coal. Thus electrochemical modification methods could be used to change the structure and func- tional group on the coal surface and to enhance the floatability of coal.

关键词： fine coal electrochemistry modification modification mechanism FTIR Raman Spectra

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