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Anastomosing hemangioma arising from the left renal vein:A case report

World Journal of Clinical Cases 2020年第20期8卷 4986-4992页

作者： Li-Ping Zheng Wei-Ai Shen chun-Hua Wang chun-dong Hu Xu-Jian Chen Yi-Yu Shen Jing Wang Department of General Surgery The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina University of Ningbo Ningbo 315000Zhejiang ProvinceChina Department of Pathology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Anastomosing hemangioma(AH)is a rare subtype of benign hemangioma that is most commonly found in the genitourinary *** to the lack of specific clinical and radiologic manifestations,it is easily misdiagnosed ***,we report a case of AH arising from the left renal vein that was discovered incidentally and confirmed pathologically,and then describe its imaging characteristics from a radiologic point of view and review its clinicopathologic features and *** SUMMARY A 74-year-old woman was admitted to our department for a left retroperitoneal neoplasm measuring 2.6 cm×2.0 *** laboratory data showed no significant abnormalities.A non-contrast-enhanced computed tomography(CT)scan showed a heterogeneous density in the ***-contrast-enhanced magnetic resonance imaging(MRI)revealed a heterogeneous hypointensity on T1-weighed images and a heterogeneous hyperintensity on T2-weighed *** contrastenhanced CT and MRI scans,the neoplasm presented marked septal enhancement in the arterial phase and persistent enhancement in the portal phase,and its boundary with the left renal vein was *** on these clinical and radiological manifestations,the neoplasm was initially considered to be a neurogenic neoplasm in the left ***,the neoplasm was completely resected and pathologically diagnosed as *** AH is an uncommon benign *** misdiagnoses are common not only because of a lack of specific clinical and radiologic manifestations but also because clinicians lack vigilance and diagnostic experience in identifying *** is not exclusive to the urogenital *** report the first case of this neoplasm in the left renal *** of this entity in the left renal vein can be helpful in its diagnosis and distinction from other neoplasms.

关键词： Anastomosing hemangioma Angiosarcoma Computed tomography Magnetic resonance imaging Case report Pathology

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Overexpression of Sweet Pepper Glycerol-3-Phosphate Acyltransferase Gene Enhanced Thermotolerance of Photosynthetic Apparatus in Transgenic Tobacco

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Journal of Integrative Plant Biology 2008年第5期50卷 613-621页

作者： Kun Yan Na Chen Yan-Yan Qu Xin-chun dong Qing-Wei Meng Shi-Jie Zhao College of Life Sciences State Key Laboratory of Crop Biology Shandong Agricultural University Tai'an 271018 China

In order to investigate the relationship between the lipid composition in thylakoid membrane and thermostability of photosynthetic apparatus, tobacco transformed with sweet pepper sense glycerol-3-phosphate acyltransferase （GPAT） gene were used to analyze the lipid composition in thylakoid membrane, the net photosynthetic rate and chlorophyll fluorescence parameters under high temperature stress. The results showed that the saturated extent of monogalactosyldiacylglycerol （MGDG）, sulfoquinovosyldiacylglycerol, digalactosyldiacylglycerol and phosphatidylglycerol in thylakoid membrane of transgenic tobacco T1 lines increased generally. Particularly, the saturated extent in MGDG increased obviously by 16.2% and 12.6% in T1-2 and T1-1, respectively. With stress temperature elevating, the maximum efficiency of photosystem Ⅱ （PSⅡ） photochemistry （Fv/Fm）, actual photochemical efficiency of PSll in the light （ФPSⅡ） and net photosynthetic rate （Pn） of the two lines and wild type tobacco plants decreased gradually, but those parameters decreased much less in transgenic plants. Even though the recovery process appeared differently in the donor and acceptor side of PSⅡ in transgenic tobacco compared with wild-type plants, the entire capability of PSⅡ recovered faster in transgenic tobacco, which was shown in the parameters of PI, Fv/Fm and ФPSⅡ, as a result, the recovery of Pn was accelerated. Conclusively, we proposed that the increase in saturated extent of thylakoid membrane lipids in transgenic plants enhanced the stability of photosynthetic apparatus under high temperature stress.

关键词： glycerol-3-phosphate transferase lipids in thylakoid membrane photosynthesis thermotolerance tobacco.

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Activation and shutdown dose-rate analyses for the EAST NBI test facility

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Nuclear Science and Techniques 2016年第4期27卷 60-66页

作者： Yu-Qing Chen Ji Wang Bin Wu Jun Li Ya-Hong Xie Guo-Qiang Zhong chun-dong Hu Institute of Plasma Physics Chinese Academy of Sciences

An analysis of the neutron activation and shutdown dose rates was performed for the EAST high-power deuterium neutral beam injector test facility(EAST NBITF) by using the multiparticle transport code FLUKA2011.2. Also, the neutron and neutron-induced gamma spectra of the facility's vacuum vessel were evaluated. The results identified the major radionuclides^(99) Mo,^(65)Ni,^(58) Co,^(56)Mn, and^(51) Cr for the vacuum vessel and the primary nuclide^(64) Cu for both the ion dump and the *** simulated results indicated that, when the EAST NBITF operates within the design parameters of deuterium energy 80 ke V, current 50 A, and pulse 100 s, the neutron intensity will achieve 10^(11)n/s with no radiation safety problems after the EAST NBITF shuts down.

关键词：剂量率测试设备停机 NBI 放射性核素激活中性束注入器试验设施

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Radiological aspects of giant hepatocellular adenoma of the left liver: A case report

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World Journal of Clinical Cases 2019年第23期7卷 4111-4118页

作者： Li-Ping Zheng chun-dong Hu Jing Wang Xu-Jian Chen Yi-Yu Shen Department of General Surgery The Second Affiliated Hospital of Jiaxing University

BACKGROUND Hepatocellular adenoma(HCA)is very rare and has a high misdiagnosis rate through clinical and imaging *** report a case of giant HCA of the left liver in a young woman that was diagnosed by medical imaging and *** SUMMARY A 21-year-old woman was admitted to our department for a giant hepatic tumor measuring 22 cm×20 cm×10 cm that completely replaced the left hepatic *** laboratory data only suggested mildly elevated liver function parameters and C-reactive protein levels.A computed tomography(CT)scan showed mixed density in the *** resonance imaging(MRI)of the tumor revealed a heterogeneous hypointensity on T1-weighed MR images and heterogeneous hyperintensity on T2-weighed MR *** dynamic contrast CT and MRI scans,the tumor presented marked enhancement and the subcapsular feeding arteries were clearly visible in the arterial phase,with persistent enhancement in the portal and delayed ***,the tumor capsule was especially prominent on T1-weighted MR images and showed marked enhancement in the delayed *** on these imaging manifestations,the tumor was initially considered to be an ***,the tumor was completely resected and pathologically diagnosed as an *** HCA is an extremely rare hepatic *** misdiagnoses were common not only due to the absence of special clinical manifestations and laboratory examination findings,but also due to the clinicians’lack of practical diagnostic experience and vigilance in identifying HCA on medical *** case highlights the importance of the combination of contrast-enhanced CT and MRI in the preoperative diagnosis of HCA.

关键词： Hepatocellular adenoma Computed tomography Magnetic resonance imaging Case report Differential diagnosis Pathology

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A Theoretical Explanation of the Causes of Popular Elements and Income Power Law Distribution Based on Data Analysis

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Psychology Research 2022年第6期12卷 362-368页

作者： dong chun Shanxi University of Finance and Economics TaiyuanChina

The known statistical data show that the distribution of popular elements and people’s income presents the characteristics of power law *** present,the explanation for this phenomenon is mostly through the“rich get richer”theory,but the author believes that this theory has major flaws and fails to provide a reasonable explanation for many ***,the author expands some empirical and recognized theories in a similar direction in logic,and derives a logical mathematical model through the derivation of mathematical formulas,so as to explain the phenomenon that the distribution of popular elements and people’s income presents a power-law ***,by analyzing various characteristics of social networks and comparing them with some phenomena in nature,the conclusion can be extended to all self-organizing groups in nature.

关键词： social network popularity income power law distribution

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Sustainability-oriented prioritization of nuclear fuel cycle transitions in China:a holistic MCDM framework under uncertainties

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Nuclear Science and Techniques 2024年第9期35卷 196-212页

作者： Lei Wang Ru-Xing Gao Hyo On Nam Hong Jang Won Il Ko chun-dong Zhang Guo-An Ye Wen-Heng Jing State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China Korea Atomic Energy Research Institute 989-111 Daedeok-daeroYuseong-GuDaejeon 34057Republic of Korea China Institute of Atomic Energy P.O.Box 275-1Beijing 102413China

A sustainability-oriented assessment of the nuclear energy system can provide informative and convincing decision-making support for nuclear development strategies in *** our previous study,four authentic nuclear fuel cycle(NFC)transi-tion scenarios were proposed,featuring different development stages and exhibiting distinct environmental,economic,and technical ***,because of the multiple and often conflicting criteria embedded therein,determining the top-priority NFC alternative for a sustainability orientation remains *** address this issue,this study proposed a novel hybrid multi-criteria decision-making framework comprising fuzzy AHP,PROMETHEE GAIA,and ***,an improved fuzzy AHP weighting model was developed to determine criteria weights under uncertainty and investigate the influence of various weight aggregation and defuzzification ***,PROMETHEE GAIA was used to address conflicts among the criteria and prioritize alternatives on a visualized k-dimensional GAIA *** a result,the alternative for direct recycling PWR spent fuel in fast reactors is considered the most ***,a sensitivity analysis was conducted to examine the influence of criteria weight variation and validate the screening ***,using MOORA,some significant optimization ideas and valuable insights were provided to support decision-makers in shaping nuclear development strategies.

关键词： Nuclear energy systems Nuclear fuel cycle Fuzzy AHP PROMETHEE GAIA

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Journal of Mountain Science 2018年第5期15卷 1115-1128页

作者： dong chun-liang ZHAO Guang-ming LU Xiao-yu MENG Xiang-rui LI Ying-ming CHENG Xiang Key Laboratory of Safety and High-efficiency Coal Mining Ministry of Education Anhui University of Science and Technology School of Mechanics and Photoelectric Physics Anhui University of science and Technology School of Mining and Safety Anhui University of Science and Technology

The unloading effect of the excavation of deep roadways has been considerably studied, but most research methods have been limited to numerical simulations and field measurements. Only a few have adopted experimental methods for similar simulations. On the basis of the theory of mechanics,the testing system is designed considering initial geostress and dynamic unloading. The system includes an impact unloading gear and in-situ stress loading equipment, and a designed three-link structure and the impact hammer can effectively realize the dynamic excavation of ***, a cyclic excavation similar simulation experiment on a deep roadway is conducted in a laboratory. The testing system and the relevant monitoring facilities are utilized, and the unloading effect inside the surrounding rock under the cyclic dynamic excavation is studied. Results show that the cyclic dynamic excavation causes significant unloading only in the nearby rock mass, and the unloading indicators show nonlinear ***, when the lateral pressure coefficient is 1.2,the damage is concentrated on both roadsides due to the excavation unloading. Meanwhile, the damage gradually decays as the span increases.

关键词： Excavation unloading in deep roadways Unloading effect Damage of surrounding rock Circular excavation Unloading index

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Machine learning-based predictions of current and future susceptibility to retrogressive thaw slumps across the Northern Hemisphere

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Advances in Climate Change Research 2024年第2期15卷 253-264页

作者： Jing LUO Guo-An YIN Fu-Jun NIU Tian-chun dong Ze-Yong GAO Ming-Hao LIU Fan YU State Key Laboratory of Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China China Railway Qinghai-Tibet Group Co. LtdXining 810000China University of Chinese Academy of Sciences Beijing 100049China

Retrogressive thaw slumps(RTSs)caused by the thawing of ground ice on permafrost slopes have dramatically increased and become a common permafrost hazard across the Northern Hemisphere during previous ***,a gap remains in our comprehensive understanding of the spatial controlling factors,including the climate and terrain,that are conducive to these RTSs at a global *** machine learning methodologies,we mapped the current and future RTSs susceptibility distributions by incorporating a range of environmental factors and RTSs *** identified freezing-degree days and maximum summer rainfall as the primary environmental factors affecting RTSs *** final ensemble susceptibility map suggests that regions with high to very high susceptibility could constitute(11.6±0.78)%of the Northern Hemisphere's permafrost *** juxtaposed with the current(2000-2020)RTSs susceptibility map,the total area with high to very high susceptibility could witness an increase ranging from(31.7±0.65)%(SSP585)to(51.9±0.73)%(SSP126)by the *** insights gleaned from this study not only offer valuable implications for engineering applications across the Northern Hemisphere,but also provide a long-term insight into the potential change of RTSs in permafrost regions in response to climate change.

关键词： Retrogressive thaw slump Machine learning Susceptibility map Permafrost Northern Hemisphere

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Chemical Bond Properties and Isomer Shifts of Tl2Ba2Ca2Cu3O10

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Chinese Journal of Chemical Physics 2006年第3期19卷 211-213页

作者： Jin-ku Yu dong-chun Li Fa-ming Gao College of Material Science and Engineering State Key Lab Metastable Material Science Technology Yanshan University Qinhuangdao 066004 China

Tl2Ba2Ca2Cu3O10 was reported to be a superconductor with a highest transition temperature of 125 K among the homologous series of Tl2Ba2Can-1CunO2n＋4. The direct information on the Cu ion site at the atomic level is important for elucidating the superconductivity mechanism. The local bond properties of Tl2Ba2Ca2Cu3O10 were studied using the average band-gap model. The calculated results show that the covalency of Cu（1）-O bond is 0.561, and the average covalency of Cu（2）-O is 0.296. Mossbauer isomer shifts of 57Fe in Tl2Ba2Ca2Cu3O10 were calculated using the chemical surrounding factor, defined by covalency and electronic polarizability. It is verified that for lower doping, Fe substitute the Cu at the Cu （1） site in forms of Fe^3＋ and Fe^4＋; for higher doping, Fe^3＋ and Fe^4＋ ion occupies Cu（1） and Cu（2） site respectively. The studies show that the determination of the correspondence between spectrum components and actual copper sites occupied by MSssbauer nucleus was made easier with the aid of the calculation results of the chemical bond parameters.

关键词： Superconductor Tl2Ba2Ca2Cu3O10 Chemical bond Mossbauer effect

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Microstructure and properties of Al_(2)O_(3)-ZrO_(2)-TiO_(2)composite coatings prepared by plasma spraying

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Rare Metals 2021年第7期40卷 1825-1834页

作者： Peng-Yue Gao Yu-Duo Ma Wen-Wei Sun Yong Yang Chen Zhang Yu-Hang Cui Yan-Wei Wang Yan-chun dong School of Materials Science and Engineering Hebei University of TechnologyTianjin 300132China Key Laboratory for New Type of Functional Materials in Hebei Province Tianjin 300132China State Key Laboratory of Reliability and Intelligence of Electrical Equipment Tianjin 300132China

Al_(2)O_(3)-ZrO_(2)-TiO_(2)coatings were successfully prepared by plasma spraying Al_(2)O_(3)-ZrO_(2)composite powders with and without TiO_(2)*** effects of TiO_(2)on the phase composition,microstructure and properties of the Al_(2)O_(3)-ZrO_(2)coating were *** results show that the Al_(2)O_(3)-ZrO_(2)-TiO_(2)composite powder was composed of t-ZrO_(2),a-Al_(2)O_(3),m-ZrO_(2)and rutile,while the Al_(2)O_(3)-ZrO_(2)-TiO_(2)composite coating consisted of t-ZrO_(2),a-Al_(2)O_(3)and c-Al_(2)O_(3).The diffraction peaks of TiO_(2)could not be detected in the Al_(2)O_(3)-ZrO_(2)-TiO_(2)coating even up to10 wt%TiO_(2)*** reason may be that TiO_(2)was dissolved in the amorphous phase or formed solid solution with c-Al_(2)O_(3)phase in the coating during *** with the Al_(2)O_(3)-ZrO_(2)coating,the as-prepared Al_(2)O_(3)-ZrO_(2)-TiO_(2)coating had denser microstructure,less microcracks and more amorphous *** density of the Al_(2)O_(3)-ZrO_(2)-TiO_(2)coating increased with the increase of TiO_(2)*** Al_(2)O_(3)-ZrO_(2)-10 wt%TiO_(2)coating had the most uniform and dense microstructure,possessed higher toughness,adhesive strength and wear resistance compared with the Al_(2)O_(3)-ZrO_(2)coating,which was due to its lower porosity and more uniform microstructure.

关键词： Al_(2)O_(3)-ZrO_(2) Composite coatings Plasma spraying TiO_(2)

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