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CRTS Ⅲ型板式无砟轨道施工过程中轨道板扣压技术优化

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铁道建筑 2025年第1期65卷 59-64页

作者：王立方高亮姜金凤王晓宇吴得卿韦合导中国建筑第八工程局有限公司上海200112 北京交通大学土木建筑工程学院北京100044 山东铁路投资控股集团有限公司济南250013 中铁四局集团有限公司第八工程分公司合肥230041 中电建路桥集团有限公司北京100160 中铁第四勘察设计院集团有限公司武汉430063

CRTS Ⅲ型板式无砟轨道施工过程中,扣压装置的工作性能将直接影响轨道板精调效果,进而影响线路的平顺性。针对既有扣压装置安装不便、工作性能不稳定等显著问题,本文提出一种高可靠性、高施工性、高适应性的新型扣压装置,通过建立有限... 详细信息

CRTS Ⅲ型板式无砟轨道施工过程中,扣压装置的工作性能将直接影响轨道板精调效果,进而影响线路的平顺性。针对既有扣压装置安装不便、工作性能不稳定等显著问题,本文提出一种高可靠性、高施工性、高适应性的新型扣压装置,通过建立有限元分析模型,并进行现场灌注试验验证模型准确性,对新型扣压装置开展优化研究。结果表明:新型扣压装置防上浮效果优于传统限位装置,建议在底座上采用双排螺栓连接方式安装新型扣压装置;建议新型扣压装置压板宽度取100~120 mm,厚度取45 mm;增大新型扣压装置压板表面粗糙度可有效提高其工作性能;每块轨道板使用4对新型扣压装置,建议将第一位扣压装置布置于距离板端600 mm处,第二位扣压装置布置于距离第一位扣压装置1 500 mm处。

关键词： CRTSⅢ型板式无砟轨道轨道板精调自密实混凝土灌注扣压装置方案优化

Topology-optimized thermal metamaterials traversing full-parameter anisotropic space

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npj Computational Materials 2022年第1期8卷 1717-1726页

作者： Wei Sha Run Hu Mi Xiao Sheng Chu Zhan Zhu Cheng-Wei Qiu liang gao State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan430074China State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan430074China School of Engineering Cardiff UniversityCardiffCF243AAUnited Kingdom Department of Electrical and Computer Engineering National University of SingaporeKent Ridge117583Republic of Singapore

It is widely adopted in thermal metamaterials that mixing different materials could conveniently result in effective thermal conductivities(ETCs)beyond naturally-occurring *** multiple materials are isotropically mixed,the ETC is a direct average governed by their filling fractions and given bulk *** could lead to an inhomogeneous and anisotropic value within the maximal and minimal thermal conductivities of constituent *** thermal metadevices rely on anisotropic thermal conductivity tensor,whose tensorial elements are frequently inter-dependent and confined within a limited parametric *** is thus nontrivial to establish a design recipe for advanced thermal metamaterials whose ETCs could cover full-parameter anisotropic *** demonstrate topological functional cells(TFCs)with copper and polydimethylsiloxane,and show that the anisotropic ETCs traverse their full-parameter *** robust scheme based on topology-optimized TFCs unlocks unexplored opportunities for functional thermal metadevices whose parameters may not be reached in previous mixing *** study also sheds light on the developments in emerging acoustic,mechanical and electromagnetic composite materials.

关键词： parameter mixing thermal

3ranular cell tumor of the urethra： a case report anc iterature review

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Asian Journal of Andrology 2016年第6期18卷 946-948页

作者： Chun-Xiao Pu liang gao Yun-Jin Bai Ping Han Department of Urology West China Hospital Sichuan University No. 37 GuoxueXiang Chengdu 610041 China

Dear Editor, Granular cell tumors （GCTs） are uncommon soft tissue neoplasms of unclear origin that most often occur in head and neck regions particularly the tongue. Until now, GCTs of the male genitalia are extremely rare with 〈20 cases reported in the English literature. Although GCTs of the penis, including prepuce, shaft, glans, corona, and corpus cavernosum,1-3 have been reported, this report describes a case of GCT originating from the urethra. To the best of our knowledge, this is the first report of a urethral case in man.

关键词： @@

Energy saving analysis for CO_(2)–O_(2)mixed injection technology in converter steelmaking

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Journal of Iron and Steel Research International 2024年第5期31卷 1095-1103页

作者： Bao-chen Han Chun-liang gao Ya-qiang Li Dan Liu Guang-sheng Wei Rong Zhu Hebei Key Laboratory of Material Near-Net Forming Technology School of Material Science and EngineeringHebei University of Science and TechnologyShijiazhuang050018HebeiChina Department of Automotive Engineering Hebei Vocational University of Technology and EngineeringXingtai054000HebeiChina School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China

Energy-saving in China's iron and steel industry still relies on the development and improvement of short-term energy saving ***,a special converter smelting technology incorporating energy saving was *** evaluate the energy-saving potential of the CO_(2)–O_(2)mixed injection(COMI)technology,collected production data were used to develop an improved techno-economic *** reveal that the technology can save energy through auxiliary material consumption,sensible heat of solid by-product,iron loss reduction,and energy *** application of COMI technology in an enterprise is cost effective,involving the energy saving potential of 0.206 GJ/t,the cost of conserved energy of−48.83 yuan/GJ,and a simple payback period of 0.35 year for a 60-million-yuan *** analysis shows that the investment cost and discount rate primarily influence the cost of conserved energy of the *** the discount rate increased,the cost of conserved energy also gradually ***,the COMI technology is an energy-saving technology with good development prospects.

关键词： Converter steelmaking COMI technology Energy saving Techno-economic model Investment cost

Resection of non-cystic adenocarcinoma in pancreatic body and tail

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World Journal of Gastroenterology 2006年第35期12卷 5726-5728页

作者： Hai-Chao Yan Yu-Lian Wu Li-Rong Chen Shun-liang gao Department of Surgery Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou Zhejiang Province China Department of Pathology Second Affiliated Hospital School of Medicine Zhejiang University HangzhouZhejiang Province China

AIM: To report the outcome of Chinese patents with non-cystic adenocarcinoma in pancreatic body and tail (NCAPBT) after resection and to discuss its surgical strategy. METHODS: Resection of NCAPBT was performed in eight Chinese patients with complete clinical-pathological data in our hospital from January 2000 to May 2004. The surgical strategy was explored by analyzing the results of these patients. RESULTS: The resection rate of NCAPBT in patients without back pain was higher than that in patients with back pain (66.67% vs 20%, 2/3 vs 1/5). The prognosis in the group receiving palliative resection was poorer than that in the group receiving curative resection. The median survival time was 12 mo in the curative resection group and 6 mo in the palliative resection group, respectively. CONCLUSION: The overall survival time of the Chinese patients with NCAPBT is dismal. The Chinese patients after curative resection of NCAPBT have a longer survival time. The Chinese NCAPBT patients with back pain trend to have a lower curative resection rate, but back pain should not be considered a contraindication for curative resection.

关键词： Pancreas Adenocarcinoma Pancreatectomy Survival Back bain

Lumboperitoneal shunts for the treatment of post-traumatic hydrocephalus

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Asian Pacific Journal of Tropical Medicine 2018年第2期11卷 162-165页

作者： Fu-Mei Chen Ke Wang liang gao Xu-Dong Yao Department of Neurosurgery Shanghai clinical collegeAnhui Medical University Department of Neurosurgery Shanghai Tenth People’s HospitalTongji University Department of Urology Shanghai clinical collegeAnhui Medical University

Objective: To assess the effectiveness and safety of lumboperitoneal shunt for treatment of post-traumatic hydrocephalus(PTH).Methods: A retrospective analysis of medical records of patients with lumboperitoneal shunts admitted in Shanghai Tenth People's Hospital from January 2014 to March 2017 was *** with lumboperitoneal shunt placement for PTH was *** diagnosis of PTH was based on ventricular enlargement with the Evans' index(EI>0.3) before shunt *** were evaluated for improvements in Glasgow Coma Scale(GCS), Glasgow Outcome Scale(GOS), and EI after shunt ***: Totally, the study included 34 PTH patients with the average age of 49.32 years(range: 9–67 years).The average follow-up period was(3.9±3.5) *** lumboperitoneal shunt, the GOS score was(4±1), the GCS score was(8.53±3.38), and the EI score was(0.40±0.08).After shunt implantation, the GOS score was(3±1), the GCS score was(10.29±3.15), and the EI score was(0.34±0.13), respectively(P<0.05).Before lumboperitoneal shunt, 24(70.58%) patients had a GOS score of 4(vegetative state), and 10(29.42%) patients had a GOS score of 3(severe disabled).After lumboperitoneal shunt, 18(52.94%) patients had improvement in GOS(11 patients improve from GOS 4 to GOS 3, 5 patients from GOS 3 to GOS 2 and 2 patients from GOS 3 to GOS 1), 22(64.71%) patients achieved improvement in their GCS(14 patients GCS improvements ≥2 and 8 patients GCS improvement=1), 21(61.76%) patients had EI improvement(18 patients with EI<0.3).There was no complication in this ***: Lumboperitoneal shunt placement is safe and effective for PTH, and serious complications are not observed.

关键词： Post-traumatic hydrocephalus Traumatic brain injury Lumboperitoneal shunt

Effects of Twin-Dislocation and Twin-Twin Interactions on the Strain Hardening Behavior of TWIP Steels

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Journal of Iron and Steel Research International 2010年第12期17卷 70-74页

作者： WANG Shu-han LIU Zhen-yu WANG Guo-dong LIU Jun-liang liang gao-fei LI Qiu-lin Graduate School at Shenzhen Tsinghua University Shenzhen 518055 Guangdong China The Key Laboratory of Rolling Technology and Automation Northeastern University Shenyang 110004 Liaoning China The Research and Development Institute Baosteel Co Ltd Shanghai 201900 China

Tensile tests of Fe-30Mn-5Si-2Al steel were carried out for different strains of 0.05, 0.14, 0.26, and up to the strain-to-failure in order to observe the evolution of microstructure during deformation and investigating the strain hardening behavior. Three-stage strain hardening behavior was observed in this steel during tensile test. In stage I , planar dislocation structure was observed by TEM and regarded as main deformation mechanism, and low strain hardening rate exponent was exhibited. Primary deformation twinning occurred in stage II , and the strain hardening rate exponent increased due to the blockage of dislocations＇ motion by twin boundaries. In stage III , the strain hardening rate exponent had increased to a value higher than 0.5. The obstacle effect of twin boundaries and twin-twin interact＇ion had been observed by TEM, and the interactions between primary and secondary twins were found to cause the additional hardening in addition to the obstacle effect on dislocations＇ motion, which led to the twinning induced plasticity effect in the later stage of deformation.

关键词： TWIP steel strain hardening twin dislocation

Porphyromonas gingivalis infection promotes mitochondrial dysfunction through Drp1-dependent mitochondrial fission in endothelial cells

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International Journal of Oral Science 2021年第3期13卷 300-310页

作者： Tong Xu Qin Dong Yuxiao Luo Yanqing Liu liang gao Yaping Pan Dongmei Zhang Department of Periodontics School of StomatologyChina Medical UniversityShenyangChina Department of Periodontics and Oral Biology School and Hospital of StomatologyChina Medical UniversityLiaoning Provincial Key Laboratory of Oral DiseaseShenyangChina

Porphyromonas gingivalis(***),a key pathogen in periodontitis,has been shown to accelerate the progression of atherosclerosis(AS).However,the definite mechanisms remain *** evidence supports an association between mitochondrial dysfunction and *** our study,the impact of *** on mitochondrial dysfunction and the potential mechanism were *** mitochondrial morphology of ***926 cells infected with *** was assessed by transmission electron microscopy,mitochondrial staining,and quantitative analysis of the mitochondrial *** staining and flow cytometry analysis were performed to determine mitochondrial reactive oxygen species(mtROS)and mitochondrial membrane potential(MMP)*** ATP production was examined by a luminescence assay *** expression of key fusion and fission proteins was evaluated by western blot and ***-1,a specific Drp1 inhibitor,was used to elucidate the role of Drp1 in mitochondrial *** findings showed that *** infection induced mitochondrial fragmentation,increased the mtROS levels,and decreased the MMP and ATP concentration in vascular endothelial *** observed upregulation of Drp1(Ser616)phosphorylation and translocation of Drp1 to ***-1 blocked the mitochondrial fragmentation and dysfunction induced by ***,these results revealed that *** infection promoted mitochondrial fragmentation and dysfunction,which was dependent on *** dysfunction may represent the mechanism by which *** exacerbates atherosclerotic lesions.

关键词： Drp1 gingivalis dysfunction

Heat Shock Factor A1s are required for phytochrome-interacting factor 4-mediated thermomorphogenesis in Arabidopsis

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Journal of Integrative Plant Biology 2024年第1期66卷 20-35页

作者： Bingjie Li Shimeng Jiang liang gao Wenhui Wang Haozheng Luo Yining Dong Zhihua gao Shuzhi Zheng Xinye Liu Wenqiang Tang Key Laboratory of Molecular and Cellular Biology of Ministry of Education Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell SignalingHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China School of Information Technology Hebei University of Economics and BusinessShijiazhuang 050061China

Thermomorphogenesis and the heat shock(HS)response are distinct thermal responses in plants that are regulated by PHYTOCHROME-INTERACTING FACTOR 4(PIF4)and HEAT SHOCK FACTOR A1s(HSFA1s),*** is known about whether these responses are interconnected and whether they are activated by similar *** analysis of transcriptome dynamics in response to warm temperature(28℃)treatment revealed that 30 min of exposure activated the expression of a subset of HSFA1 target genes in Arabidopsis ***,a loss-of-function HSFA1 quadruple mutant(hsfa1-cq)was insensitive to warm temperature-induced hypocotyl *** hsfa1-cq plants grown at 28℃,the protein and transcript levels of PIF4 were greatly reduced,and the circadian rhythm of many thermomorphogenesis-related genes(including PIF4)was ***,the nuclear localization of HSFA1s and the binding of HSFA1d to the PIF4 promoter increased following warm temperature exposure,whereas PIF4 overexpression in hsfa1-cq partially rescued the altered warm temperature-induced hypocotyl growth of the *** together,these results suggest that HSFA1s are required for PIF4 accumulation at a warm temperature,and they establish a central role for HSFA1s in regulating both thermomorphogenesis and HS responses in Arabidopsis.

关键词： HSFA1 PIF4 thermomorphogenesis