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An ultra-deep TSV technique enabled by the dual catalysis-based electroless plating of combined barrier and seed layers

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Microsystems & Nanoengineering 2024年第3期10卷 409-419页

作者： Yuwen su Yingtao Ding Lei Xiao Ziyue Zhang Yangyang Yan Zhifang Liu Zhiming Chen Huikai xie School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijingChina Chongqing Institute of Microelectronics and Microsystems Beijing Institute of TechnologyChongqingChina

Silicon interposers embedded with ultra-deep through-silicon vias(TSVs)are in great demand for the heterogeneous integration and packaging of opto-electronic chiplets and microelectromechanical systems(MEMS)*** the cost-effective and reliable manufacturing of ultra-deep TSVs,the formation of continuous barrier and seed layers remains a crucial challenge to ***,we present a novel dual catalysis-based electroless plating(ELP)technique by tailoring polyimide(PI)liner surfaces to fabricate dense combined Ni barrier/seed layers in ultradeep *** additional to the conventional acid catalysis procedure,a prior catalytic step in an alkaline environment is proposed to hydrolyze the PI surface into a polyamide acid(PAA)interfacial layer,resulting in additional catalysts and the formation of a dense Ni layer that can function as both a barrier layer and a seed layer,particularly at the bottom of the deep *** with depths larger than 500μm and no voids are successfully fabricated in this *** fabrication process involves low costs and *** a fabricated 530-μm-deep TSV with a diameter of 70μm,the measured depletion capacitance and leakage current are approximately 1.3 pF and 1.7 pA at 20 V,respectively,indicating good electrical *** proposed fabrication strategy can provide a cost-effective and feasible solution to the challenge of manufacturing ultra-deep TSVs for modern 3D heterogeneous integration and packaging applications.

关键词： properties catalysis alkaline

基于Cite Space的青少年脊柱侧弯康复治疗的可视化分析

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医学信息 2024年第1期37卷 88-94页

作者：谢素梅杨鑫许佳丽巴丽张璇玥刘汉娇福建中医药大学护理学院广州中医药大学附属第七临床医学院深圳宝安中医院护理部

目的了解青少年特发性脊柱侧弯康复治疗研究现状及发展趋势，为未来参与研究青少年特发性脊柱侧弯康复治疗提供参考。方法检索Web of science(WOS)核心合集数据库以及中国知网（CNKI）数据库发表的与青少年特发性脊柱侧弯康复治疗有... 详细信息

目的了解青少年特发性脊柱侧弯康复治疗研究现状及发展趋势，为未来参与研究青少年特发性脊柱侧弯康复治疗提供参考。方法检索Web of science(WOS)核心合集数据库以及中国知网（CNKI）数据库发表的与青少年特发性脊柱侧弯康复治疗有关的文献，检索时限为2002年1月1日-2022年12月31日，运用CiteSpace(6.1.R2)与Excel软件绘制可视化知识图谱以及数据表格图。结果检索完成后共筛出347篇文章，其中英文文献239篇，中文文献108篇。发文量最多的作者以Negrini S与周璇为代表的团队。高频关键词分析显示有青少年、脊柱侧弯、呼吸作用、锻炼疗法、耐力训练、体态调整控制、Cobb角、支具疗法、运动、保守治疗、生活质量等方面，且支具疗法、运动、Cobb角、保守治疗、生活质量可将成为未来青少年特发性脊柱侧弯的研究热点及趋势。结论从近20年已经发表的文献里可看出，青少年脊柱侧弯的康复治疗方式当前还处于进行发展中，而未来可进一步加强跨地区之间合作研究。

关键词：脊柱侧弯青少年脊柱侧弯康复治疗

The NAC transcription factor LuNAC61 negatively regulates fiber development in flax (Linum usitatissimum L.)

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Journal of Integrative Agriculture 2024年第3期23卷 795-805页

作者： Dongwei xie Jing Li Wan Li Lijun sun Zhigang Dai Wenzhi Zhou Jianguang su Jian sun School of Life Sciences Nantong UniversityNantong 226019China Institute of Crop Cultivation and Tillage Heilongjiang Academy of Agricultural SciencesHarbin 150086China Institute of Bast Fiber Crops Chinese Academy of Agricultural SciencesChangsha 410221China Jiangsu Sanshu Biotechnology Co.Ltd. Nantong 226001China

Flax is a crucial fiber crop that exhibits excellent textile properties and serves as a model plant for investigating phloem fiber development. The regulation of multiple genes significantly influences fiber development, notably involving NAC(NAM, ATAF1/2, CUC2) transcription factors in forming the fiber secondary cell wall(SCW).Overexpression of LuNAC61 in flax resulted in sparse top meristematic zone leaves and significantly reduced stem cellulose content. Scanning electron microscopy and staining observations revealed a significant reduction in fiber bundles. β-Glucuronidase(GUS) staining analysis demonstrated high activity of the LuNAC61 promoter in the bast fibers of the flax stem. Additionally, several members of the LuPLATZ and LuCesA families exhibited significant coexpression with LuNAC61. subcellular localization indicated the presence of LuPLATZ24 protein in the nucleus and cytoplasm, LuNAC61 protein exclusively in the nucleus, and LuCesA10 in the nucleus and endoplasmic reticulum. LuPLATZ24 positively regulates LuNAC61, whereas LuNAC61 negatively affects LuCesA10, suggesting the involvement of a metabolic network in regulating flax fiber development. In conclusion, this study provides a critical opportunity for a comprehensive and in-depth analysis of the mechanisms governing flax fiber development and the potential use of biotechnology to enhance flax fiber yield.

关键词： flax fiber development Lu NAC61 gene function gene interaction

商文化墓葬二层台上放置动物腿骨现象与“奠竁”礼比较研究

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华夏考古 2009年第2期 109-117,129页

作者：谢肃北京大学考古文博学院北京市100871

商文化墓葬的二层台上有放置动物腿骨的现象。本文结合晚商墓葬制度的研究成果对其进行了考察。发现同一墓组或分族的墓葬二层台放置的动物腿骨的种类具有一致性,这或是血缘关系或族在商代社会生活中发挥较大作用的体现;二层台有动物腿... 详细信息

商文化墓葬的二层台上有放置动物腿骨的现象。本文结合晚商墓葬制度的研究成果对其进行了考察。发现同一墓组或分族的墓葬二层台放置的动物腿骨的种类具有一致性,这或是血缘关系或族在商代社会生活中发挥较大作用的体现;二层台有动物腿骨的墓葬在其所在墓组的同时期墓葬中规模较大,二层台所置动物腿骨种类多少和墓葬的等级没有必然的关系。二层台放置动物腿骨的现象与文献记载的周代"奠竁"礼有相似的地方,但也有较大的差异。

关键词：商文化墓葬二层台动物腿骨奠竁

Sound absorption performance of acoustic metamaterials composed of double-layer honeycomb structure

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Journal of Central South University 2021年第9期28卷 2947-2960页

作者： WANG Da xie su-chao YANG Shi-chen LI Zhen Key Laboratory of Traffic Safety on Track of Ministry of Education Changsha 410075China Joint International Research Laboratory of Key Technology for Rail Traffic Safety Changsha 410075China School of Traffic&Transportation Engineering Central South UniversityChangsha 410075China National Innovation Center of Advanced Rail Transit Equipment Zhuzhou 412001China

The purpose of the research is to assess the sound absorption performance(SAP)of acoustic metamaterials made of double-layer Nomex honeycomb structures in which a micro-orifice corresponds to a honeycomb *** this purpose,the influences of structural parameters on the SAP of acoustic metamaterials were investigated by using experimental testing and a validated theoretical *** addition,the sandwich structure was optimized by the genetic *** research shows that the panel thickness and micro-orifice diameter mainly affect the second resonant frequency and second peak sound absorption coefficient(SAC)of the *** unit cell size is found to influence the first and second resonant frequencies and two peaks of the *** extremely low side-length of the honeycomb core decreases the SAP of the structure for low-frequency noise ***,the sandwich structure presents a better SAP when the diameter of micro-orifices on the front micro-perforated panel(MPP)exceeds that of the back *** sandwich structure shows better noise reduction performance after the optimization aiming at the noise frequency outside trains.

关键词： acoustic metamaterials sound absorption honeycomb sandwich panel micro-perforated panel

The quantum chemistry study on the electronic properties of conductive polymers of polypyridinopyridine series

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Chinese Journal of Chemistry 1994年第3期12卷 206-212页

作者： xie, De-Min su, Zhong-Min SHI, Zhong-Liang WANG, Rong-ShunDepartment of Chemistry, Northeastern Normal University, Changchun, Jilin 130024, China Department of Chemistry Northeastern Normal University Changchun Jilin 130024 China

The molecular structures of thermally structurized polyacrylonitrile (PAN), that is, polypyridinopyridine (PPyPy) series have been investigated by using quantum chemistry semiem-pirical MNDO, CNDO/2-CO methods. The changing regularities of structural stability and electronic properties are pointed out. The analyses of the energy band structures indicate that the energy gaps will become smaller, intrinsical conductivities will increase when the quasi-one-dimentional (1D) series of PPyPy molecule widen toward two-dimention (2D), which is consistent with the experimental results of polymerization degree (PD) and electrical conductivity increase with the increasing of pyrolyzed temperature.

关键词： Polypyridinopyridine conductivity electronic property.

经后增殖方改善卵巢功能不全小鼠卵巢储备及凋亡状态的研究

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广东医学 2024年第6期45卷 679-684页

作者：李晖欧莹冼业星黄岩陈小燕谢素嫣郭新宇南部战区总医院妇产科广东广州510010 南部战区总医院生殖医学中心广东广州510010

目的探讨中药经后增殖方对环磷酰胺诱导的卵巢功能不全小鼠卵巢储备功能与细胞凋亡状态的改善作用。方法将30只雌性小鼠随机分为环磷酰胺(cyclophosphamide,Cy)组、环磷酰胺+经后增殖方(JHZZR)组和空白对照组,经颈椎脱臼处死后取血清及... 详细信息

目的探讨中药经后增殖方对环磷酰胺诱导的卵巢功能不全小鼠卵巢储备功能与细胞凋亡状态的改善作用。方法将30只雌性小鼠随机分为环磷酰胺(cyclophosphamide,Cy)组、环磷酰胺+经后增殖方(JHZZR)组和空白对照组,经颈椎脱臼处死后取血清及卵巢组织待测。采用ELISA方法检测血清抗苗勒氏管激素(AMH)、促卵泡生成激素(FSH)和雌二醇(E2)水平,卵巢组织HE染色后计数各级卵泡数目,同时采用实时荧光定量PCR(quantitative real-time PCR,qPCR)方法检测卵巢组织凋亡因子Caspase3 mRNA的表达水平,用TUNEL法检测卵巢颗粒细胞的凋亡状态。结果与空白对照组相比,Cy组和Cy+JHZZR组小鼠卵巢内各级发育中卵泡数量均明显减少,闭锁卵泡增多。Cy+JHZZR组窦前卵泡与窦状卵泡数量较Cy组有所增加,闭锁卵泡数量减少,差异均有统计学意义(P0.05)。Cy组和Cy+JHZZR组小鼠卵巢组织Caspase3 mRNA相对表达量分别为5.86±1.33和4.45±1.02,均高于空白对照组(2.89±1.10,P<0.01),而两组间差异也有统计学意义(P<0.05)。空白对照组、Cy组和Cy+JHZZR组的凋亡指数(apoptosis index,AI)分别为(8.37±3.17)%、(16.85±5.46)%和(12.80±3.34)%,Cy组和Cy+JHZZR组的AI均较空白对照组明显升高,且Cy+JHZZR组的AI低于Cy组,差异均有统计学意义(P<0.05)。结论经后增殖方可以改善环磷酰胺诱导的卵巢功能不全小鼠卵巢储备功能,并降低卵巢细胞的凋亡状态。

关键词：经后增殖方环磷酰胺卵巢功能不全卵巢储备细胞凋亡

Collision performance of bitubular tubes with diaphragms

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Journal of Central South University 2015年第9期22卷 3657-3665页

作者：董海鹏高广军谢素超李健 Key Laboratory of Traffic Safety on Track of Ministry of Education (School of Traffic and Transportation Engineering Central South University)

A numerical study of bitubular tubes with diaphragms compared with single and bitubular tubes subjected to dynamic axial impact force was presented. At first, the energy absorption response of the composite structure under axial loading was analyzed by finite element simulation. The results show that the efficiency of energy absorption can be improved by introducing diaphragms to the double-walled columns. Then, the effect of the amount and location of diaphragms, the shape and the size of the inner tubes, and the thickness of the composite structures were also studied numerically. The collision performance of the composite structure is affected by the deformation of diaphragms, as well as the interaction of outer and inner tube. The non-uniform distribution of diaphragms can improve the energy absorption efficiency of structures for a constant number of diaphragms. The specific energy absorption of the hexagonal inner tube is the highest, followed by the circular, octagonal and square ones.

关键词： bitubular tube diaphragm energy absorption crashworthiness

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一类拟线性椭圆型方程弱解梯度的一致估计

应用数学 2006年第2期19卷 414-420页

作者：谢素英杭州电子科技大学理学院数学系杭州310018

在区域Ω的边界满足一致p厚条件下,利用一致p厚的边界Sobolev不等式、一些容量不等式和一个精确的逆Hlder不等式,我们给出了一类拟线性椭圆型方程divAp(x,Du)+Bp(x,u,Du)=f(x)弱解梯度的一致估计.

关键词：弱解一致p-厚边界 p-容量逆Holder不等式全局正则性