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ALK-positive anaplastic large cell lymphoma of the thoracic spine occurring in pregnancy: A case report

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World Journal of Clinical Cases 2019年第18期7卷 2857-2863页

作者： sen Yang Wei-Min jiang Hui-Lin Yang Department of Orthopedics The First Affiliated Hospital of Soochow University

BACKGROUND Anaplastic large cell lymphoma (ALCL) is a type of non-Hodgkin’s lymphoma (NHL). ALCL is rare as a bone lesion and in pregnancy. CASE SUMMARY We present the first case of anaplastic lymphoma kinase (ALK)+ ALCL of the thoracic spine during pregnancy. A 25-year-old pregnant woman was presented to us at 24 wk’ gestation with severe back pain and weakness in the left lower limb. Imaging examination showed lesions at T10 and T11. She underwent posterior pedicle screw fixation and vertebroplasty. Pathological examination showed ALK+ ALCL. The patient chose to have therapeutic abortion after surgery and received chemotherapy in the hematology department. She now remains disease free with no neurological deficit after 30 mo’ follow-up. CONCLUSION ALK+ ALCL with the thoracic spine involvement is uncommon, especially in pregnancy. Many symptoms can be misunderstood during pregnancy;therefore, when a pregnant patient has persistent back pain or lower limb neurological symptoms, imaging examinations should be performed.

关键词： Anaplastic large cell lymphoma Pregnancy Thoracic spine Surgical treatment Chemotherapy Case report

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基于UG的海带自动化切割机结构设计

机械工程师 2025年第1期 57-59,67页

作者：鲍启超张伟蒋明岐哈尔滨理工大学荣成学院山东荣成264300 威海长青海洋科技股份有限公司山东荣成264316

现有的海带切割方式多为人工切割和传统机械切割,存在着劳动强度大、生产效率低等缺陷。对此,文中设计了一款海带自动化切割机,主要包括运输及测量机构、检测机构、切割机构和压力装置,通过各机构相互配合,实现海带的自动化切割。海带... 详细信息

现有的海带切割方式多为人工切割和传统机械切割,存在着劳动强度大、生产效率低等缺陷。对此,文中设计了一款海带自动化切割机,主要包括运输及测量机构、检测机构、切割机构和压力装置,通过各机构相互配合,实现海带的自动化切割。海带自动化切割机能有效提高切割效率、保证成品质量,为沿海地区海产品加工预处理提供了新的发展方向。

关键词： UG 海带初加工自动化切割机械结构设计

Microstructure and Corrosion Resistance of Arc Additive Manufactured 316L Stainless Steel

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Journal of Wuhan University of Technology(Materials Science) 2020年第5期35卷 930-936页

作者： YANG Ke WANG Qiuyu QU Yang jiang Yongfeng bao Yefeng College of Mechanical and Electrical Engineering Hohai UniversityChangzhou 213022China Nantong Ocean and Coastal Engineering Research Institute Hohai UniversityNantong 226019China

The gas tungsten arc welding based additive manufacturing (GTAW-AM) was carried out by printing 316L austenitic stainless steel on carbon steel substrate with different arc currents (140,160,180 A).Microstructure and corrosion resistance of additive manufactured components were *** results show that the microstructure of the GTAW-AM austenitic stainless steel is obviously changed by the arc *** arc current increasing from 140 to 180 A,the austenite grains become coarse due to the effect of welding heat ***,the quantity of ferrites in the austenite matrix is decreased and the morphology transforms from lath to ***,σ phases are finally formed under the arc currents of 180 A owing to high welding heat ***,as the microstructure transform into coarse-grained austenites,low-quantity ferrites and new-generated σ phases,the GTAW-AM austenitic stainless steel presents a significantly decrease in corrosion *** the reduction of corrosion resistance is mainly due to the formation of σ phase as a result from consuming the large amounts of Cr element from the matrix.

关键词： austenitic stainless steel additive manufacturing microstructure corrosion resistance

Modeling the rail surface unevenness of a high-precision radio telescope

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Research in Astronomy and Astrophysics 2017年第3期17卷 13-22页

作者： Na Li Peng Li jiang Wu bao-Yan Duan School of Mechanical and Electronic Engineering Xidian University Xi'an 710071 China

This study proposed a coarse-fine mixed model for describing the rail surface unevenness of an ultra-large fully steerable radio telescope （Qi Tai Telescope） with a diameter of 110 meters. The rail surface unevenness includes information on error arising from two different scales, i.e., the long-period- short-change and the short-period-long-change. Consequently, in this study an idea of a mixed model was proposed, in which trigonometric and fractal functions were, respectively, used to describe infor- mation on error from two scales. Key parameters were determined by using the least squares method and the wavelet transform method, and finally, a specific mathematical expression of the model was obtained by optimization. To validate the effectiveness of the new modeling method, the mixed model was then used to describe the rails of the Green Bank Telescope, the Large Millimeter Telescope, and a radio telescope in Miyun, Beijing. A comparative study revealed that the maximum error was less than 15 %, thus the result was superior to those of existing modeling methods.

关键词： magnetic fields -- radiation mechanisms: general - instrumentation: adaptive optics -methods: numerical - telescopes

Formation mechanism of titanium and niobium carbides in hardfacing alloy

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Rare Metals 2017年第8期36卷 640-644页

作者： Ke Yang KèYang Ye-Feng bao Yong-Feng jiang College of Mechanical and Electrical Engineering Hohai UniversityChangzhou 213022China

The most effective carbide-forming elements titanium and niobium were added into hardfacing *** and composition of carbides in the hardfacing alloy were investigated by means of optical microscope（OM）,scanning electron microscope（SEM）,X-ray diffraction（XRD）and energy-dispersive spectrometer（EDS）.Hardness and impact toughness of the hardfacing alloy were *** thermodynamics and formation mechanism of carbides were also *** is found that the carbides consist of TiC and NbC which are able to form directly from welding pool during the welding *** formation mechanism of carbides involves nucleation of TiC followed by epitaxial precipitation of NbC on the surface of *** formation of titanium and niobium carbides can obviously refine the microstructure and deplete the carbon in the *** micros tructure transforms to well-distributed carbides and a tough martensite matrix,contributing to a good combination of high hardness and high toughness in the hardfacing alloy.

关键词： Titanium Niobium Hardfacing alloy Carbides Microstructure

Microstructure and properties of hydrogenated TB8 alloy

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Rare Metals 2017年第4期36卷 242-246页

作者： Ping Li bao-Guo Yuan Ke-Min Xue Zheng jiang School of Materials Science and Engineering Hefei Universityof Technology Hefei 230009 China

Thermohydrogen processing can enhance workability, decrease flow stress and deforming tempera- ture of titanium alloys. In this study, thermohydrogen processing was carried out for metastable β-type TB8 alloy. The microstructures of hydrogenated TB8 alloy were investigated based on scanning electron microscopy （SEM）, transmission electronic microscopy （TEM） as well as X-ray diffraction （XRD） analysis. The results reveal that 6 hydride phase forms in the hydrogenated TB8 alloy, but the amount of β phase increases with hydrogen content increasing. Single β phase appears when the hydrogen content reaches 0.7 wt%. The alloying elements redistrib- ute in the hydrogenated TB8 alloy, and hydrogen leads to the reduction of the alloying elements in β phase. The room-temperature compression tests were performed on a MTS809 machine. It is found that the room-temperature yield strength of hydrogenated TB8 alloy decreases. And minimum yield strength is obtained at a hydrogen content of 0.5 wt%. The ductility does not decrease within 0.7 wt% hydrogen content. These results provide theoretical basis for improving the formability and promoting the applica- tions of TB8 alloy.

关键词： Thermohydrogen processing TB8 alloy Microstructure Compression property

Phospholamban Antisense RNA Improves SR Ca^(2+)-ATPase Activity and Left Ventricular Function in STZ-induced Diabetic Rats

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Biomedical and Environmental Sciences 2013年第7期26卷 577-583页

作者： LI jiang JIA bao Hui SUN Jian LOU Xiao Liang HU Shen jiang Department of Emergency and ICU Fourth Affiliated Hospital of Nanchang University Zhengzhou Railway Vocational Technical College Institute of Cardiology First Affiliated Hospital Zhejiang University Medical College

Objective To study the effect of phospholamban antisense RNA （asPLB） on sarcoplasmic reticulum Ca2＋-ATPase activity and cardiac function in rats with diabetes mellitus （DM） mediated by recombinant adeno-associated virus （rAAV） vector. Methods Six weeks after the induction of DM by streptozotocin injected intraperitoneally, the rats were divided into three groups, namely： DM-rAAV-asPLB group, DM-saline group and DM group （control group）. The rats in the DM-rAAV-asPLB group were intramyocardially injected with rAAV-asPLB, the rats in the DM-saline group were injected with saline, and those in the control group did not receive any treatment. Six weeks after gene transfer, the expressions of PLB protein and PLB phosphorylation were detected by Western-blot, while the activity of sarcoplasmic reticulum （SR） Ca2＋-ATPase and left ventricular function were measured. Results The PLB protein expression level was significantly higher whereas the PLB phosphorylation, SR Ca2＋-ATPase activity and left ventricular function were significantly lower in the DM-saline group than in the control group. No significant difference was found in PLB protein expression level, PLB phosphorylation or SR Ca2＋-ATPase activity between the DM-rAAV-asPLB group and the control group. The left ventricular function in the DM-rAAV-asPLB group was poorer than in the control group and was better than in the DM-saline group. Conclusion rAAV-asPLB can down-regulate PLB protein expression and up-regulate phosphorylation and SR Ca2＋-ATPase activity, thus contributing to the improvement of in vivo ventricutar function. PLB left

关键词： Diabetes mellitus Phospholamban Sarcoplasmic reticulum Ca2+-ATPase, Gene therapy

Decomposition mechanism of chromite in sulfuric acid–dichromic acid solution

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International Journal of Minerals,Metallurgy and Materials 2017年第12期24卷 1361-1369页

作者： Qing Zhao Cheng-jun Liu bao-kuan Li Mao-fa jiang Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

The sulfuric acid leaching process is regarded as a promising, cleaner method to prepare trivalent chromium products from chromite; however, the decomposition mechanism of the ore is poorly understood. In this work, binary spinels of Mg–Al, Mg–Fe, and Mg–Cr in the powdered and lump states were synthesized and used as raw materials to investigate the decomposition mechanism of chromite in sulfuric acid–dichromic acid solution. The leaching yields of metallic elements and the changes in morphology of the spinel were studied. The experimental results showed that the three spinels were stable in sulfuric acid solution and that dichromic acid had little influence on the decomposition behavior of the Mg–Al spinel and Mg–Fe spinel because Mg^(2+), Al^(3+), and Fe^(3+) in spinels cannot be oxidized by Cr^(6+). However, in the case of the Mg–Cr spinel, dichromic acid substantially promoted the decomposition efficiency and functioned as a catalyst. The decomposition mechanism of chromite in sulfuric acid–dichromic acid solution was illustrated on the basis of the findings of this study.

关键词： hydrometallurgy chromite sulfuric acid leaching spinel decomposition mechanism

Synthesis of SmCo_5 nanoparticles with small size and high performance by hydrogenation technique

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Rare Metals 2018年第12期37卷 1021-1026页

作者： Zhen-Hui Ma Tian-Li Zhang Hui Wang Cheng-bao jiang School of Materials Science and Engineering Beihang University

SmConanoparticles(NPs) have promising applications in high-density magnetic storage and magnetic nanocomposites. In this work, A novel method to yield SmCoparticles with small size and high coercivity was reported. Firstly, SmO-Co NPs with size of 6-15 nm were fabricated by a solvothermal route. Then the agglomerated SmCoparticles were obtained by thermal reduction of the precursor, which show high coercivity of2.0 T at room temperature. At last, the as-synthesized SmCoparticles were further hydrogenated under high hydrogen pressure of 4 MPa at room temperature, where hydrogen absorption process could form small-sized SmCoHparticles due to their lattice expansion and hydrogen desorption process could convert SmCoHNPs into SmCoNPs. The prepared SmCoNPs after hydrogenation, showing well distribution, have a small size of5-20 nm and room temperature coercivity of 1.22 T.

关键词： SmCo_5 Nanoparticles Hydrogenation Coercivity