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Magnetostrictive properties and detection efficiency of TbDyFe/FeCo composite materials for nondestructive testing

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Journal of Rare Earths 2019年第2期37卷 166-170页

作者： Liangliang Zhu Kuoshe Li Yang Luo Dunbo Yu Zilong Wang Guiyong Wu jiajun xie Zhifeng Tang National Engineering Research Center for Rare Earth Materials General Research Institute for Nonferrous Metals Grirem Advanced Materials Co. Ltd. Institute of Advanced Digital Technologies and Instrumentation Zhejiang University

In order to develop a highly sensitive material for nondestructive testing(NDT),(Tb_(0.3) Dy_(0.7))Fe_(1.95) thin films were deposited on FeCo substrates at room temperature by magnetron sputtering and *** magnetostrictive properties and the detection efficiency of the composite films were *** demonstrate that the detection efficiency roughly shows regular consistency with the magnetostrictive strain of the TbDyFe films. Heat treatment has a great effect on the crystalline state and the magnetostrictive strain of the composite materials. The as-deposited(Tb_(0.3) Dy_(0.7))Fe_(1.95) films are amorphous, and the saturation magnetostriction(ls) is only 90 ppm. However, the nanostructured crystalline REFe2 is partially separated out in amorphous matrix after annealing at 600C for 1 h, and the ls increases to 265 ppm. Simultaneously, the detection efficiency of the composite materials is obviously improved compared to that of the as-deposited films. The detection signal of traditional FeCo strip is0.4 V at the excitation power of 1.0 P and frequency of 128 kHz and that of the strip increases significantly by depositing one layer of(Tb_(0.3) Dy_(0.7))Fe_(1.95) film. The detection signal of the composite material annealed at 600C is the best, even reaching saturation value of 2.5 V(1.0 P, 128 kHz). The results may provide us with a method for preparing new materials for NDT.

关键词： Magnetron sputtering Magnetostrictive thin film Ultrasound guided wave Nondestructive testing Rare earths

Outcomes of haploidentical bone marrow transplantation in patients with severe aplastic anemia-II that progressed from non-severe acquired aplastic anemia

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Frontiers of Medicine 2021年第5期15卷 718-727页

作者： Hongchen Liu Xiaoli Zheng Chengtao Zhang jiajun xie Beibei Gao Jing Shao Yan Yang Hengxiang Wang Jinsong Yan Department of Hematology Liaoning Medical Center for Hematopoietic Stem Cell TransplantationDalian Key Laboratory of HematologyLiaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational MedicineDiamond Bay Institute of Hematologythe Second Hospital of Dalian Medical UniversityDalian 116027China Department of Hematology Air Force Medical CenterPLABeijing 100142China Department of Environmental Health and Toxicology Liaoning Medical Center for Hematopoietic Stem Cell TransplantationLiaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational MedicineSchool of Public HealthDalian Medical UniversityDalian 116044China

Severe aplastic anemia II(SAA-II)progresses from non-severe aplastic anemia(NSAA).The unavailability of efficacious treatment has prompted the need for haploidentical bone marrow transplantation(haplo-BMT)in patients lacking a human leukocyte antigen(HLA)-matched *** study aimed to investigate the efficacy of haplo-BMT for patients with ***-two patients were included and followed up,and FLU/BU/CY/ATG was used as conditioning *** these patients,21 were successfully engrafted,19 of whom survived after *** patients experienced grade II–IV aGvHD,including two with grade III–IV *** patients experienced chronic GvHD,among whom four were mild and two were *** patients experienced infections during *** was diagnosed with post-transplant lymphoproliferative disorder and one with probable EBV disease,and both recovered after rituximab ***-BMT achieved 3-year overall survival and disease-free survival rate of 86.4%±0.73%after a median follow-up of 42 months,indicating its effectiveness as a salvage *** promising outcomes may support haplo-BMT as an alternative treatment strategy for patients with SAA-II lacking HLA-matched donors.

关键词： severe aplastic anemia non-severe acquired aplastic anemia haploidentical bone marrow transplantation outcomes

Tuning zinc content in wollastonite bioceramic endowing outstanding angiogenic and antibacterial functions beneficial for orbital reconstruction

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Bioactive Materials 2024年第6期36卷 551-564页

作者： Yiyu Peng Menglu Chen Jingyi Wang jiajun xie Changjun Wang Xianyan Yang Xiaoling Huang Zhongru Gou Juan Ye Eye Center The Second Affiliated HospitalZhejiang University School of MedicineZhejiangProvincial Key Lab of OphthalmologyHangzhou310009China Bio-nanomaterials and Regenerative Medicine Research Division Zhejiang-California International Nanosystem InstituteZhejiang UniversityHangzhou310058China

Prosthetic eye is indispensable as filler after enucleation in patients with anophthalmia,whereas there are still many complications including postoperative infection and eye socket depression or extrusion during the conventional artificial eye material *** Ca-silicate biomaterials showed superior bioactivity but their biological stability in vivo limit the biomedical application as long-term or permanent *** we aimed to understand the physicochemical and potential biological responses of zinc doping in wollastonite bioceramic used for orbital *** wollastonite powders with different zinc dopant contents(CSi-Znx)could be fabricated as porous implants with strut or curve surface pore geometries(cubic,IWP)via ceramic *** experimental results indicated that,by increasing zinc-substituting-Ca ratio(up to 9%),the sintering and mechanical properties could be significantly enhanced,and meanwhile the bio-dissolution in vitro and biodegradability in vivo were thoroughly *** particular,an appreciable angiogenic activity and expected antibacterial efficacy(over 90%)were synergistically achieved at 9 mol%Zn *** the back-embedding and enucleation and implantation model experiments in rabbits,the superior continuous angiogenesis was corroborated from the 2D/3D fibrovascular reconstruction in the IWP-pore CSi-Zn9 and CSi-Zn13.5 groups within very short time ***,the present silicate-based bioceramic via selective Zn doping could produce outstanding structural stability and bifunctional biological responses which is especially valuable for developing the next-generation implants with vascular insertion and fixation in orbital reconstruction prothesis.

关键词： Zinc doping Antibacterial Angiogenesis Wollastonite bioceramic Orbital reconstruction

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可变环境下仿人机器人智能姿态控制

机械工程学报 2020年第3期56卷 64-72页

作者：施群吕雷谢家骏上海大学机电工程与自动化学院上海200444

为了解决仿人机器人运动控制精度和运动稳定性差等问题,提出智能运动姿态控制算法。将连续动作和连续状态空间的深度强化学习应用于姿态控制,建立机器人运动智能姿态控制器。并针对物理样机训练样本少、效率低等问题,提出使用机器人辨... 详细信息

为了解决仿人机器人运动控制精度和运动稳定性差等问题,提出智能运动姿态控制算法。将连续动作和连续状态空间的深度强化学习应用于姿态控制,建立机器人运动智能姿态控制器。并针对物理样机训练样本少、效率低等问题,提出使用机器人辨识模型对姿态控制器进行离线的预训练,作为真实物理环境下继续学习提升的先验知识,提高了后期训练效率。将优化后的机器人姿态控制器用于机器人的运动控制中,分别和加入PID控制器、MPC控制器、以及PID+MPC控制器的机器人运动相比,在环境过渡步行试验中机器人上身俯仰姿态轨迹跟踪残差标准差分别减少60.97%,46.36%,23.98%,在平地障碍物步行试验中机器人上身俯仰姿态轨迹跟踪残差标准差分别减少60.38%,26.38%,9.52%。

关键词：双足步行深度强化学习运动控制

Application of Quicksort Algorithm in Information Retrieval

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Journal on Big Data 2021年第4期3卷 135-145页

作者： jiajun xie Zuyan Li Han Wu Linhan Li Bin Pan Peng Guo Guang Sun Hunan University of Finance and Economics Changsha410205China Changjun Meixihu Middle School Changsha410205China University Malaysia Sabah Kota Kinabalu999004Malaysia

With the development and progress of today’s network information technology,a variety of large-scale network databases have emerged with the situation,such as Baidu Library and Weipu Database,the number of documents in the inventory has reached nearly one *** how do you quickly and effectively retrieve the information you want in such a huge database?This requires finding efficient algorithms to reduce the computational complexity of the computer during Information Retrieval,improve retrieval efficiency,and adapt to the rapid expansion of document *** Quicksort Algorithm gives different weights to each position of the document,and multiplies the weight of each position with the number of matches of that position,and then adds all the multiplied sums to set a feature value for Quicksort,which can achieve the full accuracy of Information ***,the purpose of this paper is to use the quick sort algorithm to increase the speed of Information Retrieval,and to use the position weighting algorithm to improve the matching quality of Information Retrieval,so as to achieve the overall effect of improving the efficiency of Information Retrieval.

关键词： Quicksort Information Retrieval information processing

基于自由曲面有向Voronoi区域划分算法的机器人加工刀轴低摆振路径规划

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计算机集成制造系统 2019年第5期25卷 1093-1100页

作者：施群吕雷谢家骏陶佳安上海大学机电工程与自动化学院

针对自由曲面刀具路径规划中,刀轴摆动带来的振动影响加工质量的问题,提出有向Voronoi区域划分算法。基于该算法实现了刀轴运动优化的复杂自由曲面的区域划分,并光顺连接区域之间和区域内部的刀具路径,得到曲面整体实际可加工的刀具路... 详细信息

针对自由曲面刀具路径规划中,刀轴摆动带来的振动影响加工质量的问题,提出有向Voronoi区域划分算法。基于该算法实现了刀轴运动优化的复杂自由曲面的区域划分,并光顺连接区域之间和区域内部的刀具路径,得到曲面整体实际可加工的刀具路径。应用该算法与UG不同路径规划的刀轴矢量变化进行了对比实验,结果显示刀轴矢量变化均值和累计值减少了30%,方差降低了近60,从而验证了该方法的刀轴矢量变化明显小于传统的对整个加工曲面的路径规划,可减小加工过程中的机械振动和冲击,保证加工刀轴姿态的稳定性,从而提高加工精度,减小对加工设备寿命的影响。利用工业机器人完成铣削实验,进一步验证了该方法的可行性和有效性。

关键词：工业机器人有向Voronoi区域划分自由曲面加工路径规划加工振动抑制空间环切路径

Targeting cancer cell plasticity by HDAC inhibition to reverse EBV-induced dedifferentiation in nasopharyngeal carcinoma

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Signal Transduction and Targeted Therapy 2021年第10期6卷 3045-3061页

作者： jiajun xie Zifeng Wang Wenjun Fan Youping Liu Fang Liu Xiangbo Wan Meiling Liu Xuan Wang Deshun Zeng Van Wang Bin He Min Yan Zijian Zhang Mengjuan Zhang Zhijie Hou Chunli Wang Zhijie Kang Wenfeng Fang Li Zhang Eric W-F Lam Xiang Guo Jinsong Yan Yixin Zeng Mingyuan Chen Quentin Liu Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangzhouChina Institute of Cancer Stem Cell Cancer CenterDalian Medical UniversityDalianChina Department of Hematology Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational MedicineLiaoning Medical Center for Hematopoietic Stem Cell TransplantationDalian Key Laboratory of HematologyDiamond Bay Institute of HematologyThe Affiliated Second Hospital of Dalian Medical UniversityDalianChina Department of Radiation Oncology The Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina Sun Yat-sen Institute of Hematology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina

Application of differentiation therapy targeting cellular plasticity for the treatment of solid malignancies has been *** carci noma(NPC)is a distinctive cancer with poor differe ntiatio n and high prevalenee of Epstein-Barr virus(EBV)***,we show that the expressi on of EBV latent protein LMP1 in duces dediffere ntiated and stem-like status with high plasticity through the transcriptional inhibition of ***,LMP1 upregulates STAT5A and recruits HDAC 1/2 to the CEBPA locus to reduce its histone *** inhibition restored CEBPA expression,reversing cellular dedifferentiation and stem-like status in mouse xeno graft *** fin dings provide a novel mecha nistic epigenetic-based in sight into virus-induced cellular plasticity and propose a promising concept of differentiation therapy in solid tumor by using HDAC inhibitors to target cellular plasticity.

关键词： LMP1 cancer plasticity

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利用创新活动提升平台影响力的策略分析

新闻研究导刊 2024年第8期15卷 108-111页

作者：谢家军浙江卫视浙江杭州312000

文章旨在明确创新活动在提升平台影响力中的作用,探究有效的创新活动策略,为平台运营者提供实践指导。采用文献分析法和实证研究相结合的方法,研究范围涵盖数字媒体平台、社交媒体、内容创作平台等。文章通过文献整理,深入理解已有研究... 详细信息

文章旨在明确创新活动在提升平台影响力中的作用,探究有效的创新活动策略,为平台运营者提供实践指导。采用文献分析法和实证研究相结合的方法,研究范围涵盖数字媒体平台、社交媒体、内容创作平台等。文章通过文献整理,深入理解已有研究成果和理论,强调创新活动在提升平台影响力中的重要性。在此基础上,采用实证研究法,对具体的创新活动案例进行深入分析,验证理论模型的适用性和有效性。研究结果表明,以下措施对提升平台影响力具有显著效果:鼓励用户积极参与,提供个性化的参与方式和奖励机制,激发用户的创造力;注重内容策划和制作,邀请专业人士提供高质量的分享内容,满足用户需求;通过实时问答、评论互动等方式加强用户间的交流,提高活动的互动性和参与度;利用多种渠道进行宣传推广,如社交媒体、合作伙伴等,扩大活动的影响力和覆盖面。为指导平台运营者利用创新活动提高平台影响力,文章提出创新活动主题、创新活动形式和内容、加强合作推广、优化用户体验、分析数据并持续改进的策略。通过实施这些策略,平台可以有效增强用户黏性,提高用户活跃度和品牌知名度,进一步扩大自身影响力。文章对平台运营者有重要的参考价值,有助于指导其制定有效的创新活动策略,提升平台影响力。

关键词：创新活动平台影响力用户体验社交互动数据驱动

日本危险驾驶致死伤罪的立法探析——以对我国危险驾驶罪的立法借鉴为视角

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刑法论丛 2015年第3期1卷 382-412页

作者：谢佳君西南政法大学法学院

对比研究日本于2014年5月施行的特别刑法《驾驶机动车致死伤行为处罚法》发现,我国危险驾驶罪存在立法缺陷。目前我国《刑法》规定的危险驾驶罪是故意的抽象危险犯,第13条"但书"不能成为醉酒驾驶出罪的依据。我国应当在扩大危险驾驶行... 详细信息

对比研究日本于2014年5月施行的特别刑法《驾驶机动车致死伤行为处罚法》发现,我国危险驾驶罪存在立法缺陷。目前我国《刑法》规定的危险驾驶罪是故意的抽象危险犯,第13条"但书"不能成为醉酒驾驶出罪的依据。我国应当在扩大危险驾驶行为的类型、考量相关犯罪之间罪刑均衡的前提下,采用危险犯与实害犯相结合的形式,将其作为危害公共安全罪的特别法条,优先适用于交通肇事罪以及以危险方法危害公共安全罪,拟对危险驾驶罪进行立法修正。

关键词：危险驾驶日本危险犯醉酒驾驶行为类型