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Modified Multi-r.solution Telescopic Sear.h Algor.thm for.Block-Matching Motion Estimation

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Jour.al of Systems Engineer.ng and Electr.nics 2001年第3期12卷 90-96页

作者： Zhang, W. zhou, r. Kondo, T. Institute of Micr.electr.nics Tsinghua University Beijing 100084 China

This paper.pr.sents a modified multi-r.solution telescopic sear.h algor.thm (Mr.lcSA) for.the block-matching motion estimation. A novel inver.e telescopic sear.h is substituted for.the conventional telescopic sear.h, that r.duces the on-chip memor. size and memor. bandwidth for.VLSI implementation. In addition, str.tegies of motion tr.ck and adaptive sear.h window ar. applied to r.duce the computational complexity of motion estimation. Simulation r.sults show that, compar.d with the Mr.leSA, the pr.posed algor.thm r.duces the computational load to only 30% while pr.ser.ing almost the same image quality. Compar.sons on har.war. cost and power.consumption of the VLSI implementations using the two algor.thms ar. also pr.sented in the paper.

关键词： Algor.thms Bandwidth Computational complexity Computer.simulation Image quality Micr.pr.cessor.chips Optical r.solving power Optical telescopes Patter. matching VLSI cir.uits

3D Pr.nting of Tough Hydr.gel Scaffolds with Functional Sur.ace Str.ctur.s for.Tissue r.gener.tion

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Nano-Micr. Letter. 2025年第2期17卷 18-45页

作者： Ke Yao Gaoying Hong Ximin Yuan Weicheng Kong Pengcheng Xia Yuanr.ng Li Yuewei Chen Nian Liu Jing He Jue Shi Zihe Hu Yanyan zhou Zhijian Xie Yong He State Key Labor.tor. of Fluid Power.and Mechatr.nic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Liangzhu Labor.tor. Zhejiang UniversityHangzhou 310027People’s Republic of China Key Labor.tor. of 3D Pr.nting Pr.cess and Equipment of Zhejiang Pr.vince College of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Stomatology Hospital School of StomatologyZhejiang University School of MedicineHangzhou 310027People’s Republic of China State Key Labor.tor. of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001People’s Republic of China Institute of Digital Medicine Nanjing First HospitalNanjing Medical UniversityNanjing 210006People’s Republic of China

Hydr.gel scaffolds have numer.us potential applications in the tissue engineer.ng ***,tough hydr.gel scaffolds implanted in vivo ar. seldom r.por.ed because it is difficult to balance biocompatibility and high mechanical *** by Chinese r.men,we pr.pose a univer.al fabr.cating method(pr.nting-P,tr.ining-T,cr.ss-linking-C,PTC&PCT)for.tough hydr.gel scaffolds to fill this ***,3D pr.nting fabr.cates a hydr.gel scaffold with desir.d str.ctur.s(P).Then,the scaffold could have extr.or.inar.ly high mechanical pr.per.ies and functional sur.ace str.ctur. by cycle mechanical tr.ining with salting-out assistance(T).Finally,the tr.ining r.sults ar. fixed by photo-cr.ss-linking pr.cessing(C).The tough gelatin hydr.gel scaffolds exhibit excellent tensile str.ngth of 6.66 MPa(622-fold untr.ated)and have excellent ***,this scaffold possesses functional sur.ace str.ctur.s fr.m nanometer.to micr.n to millimeter.which can efficiently induce dir.ctional cell ***,this str.tegy can pr.duce bionic human tissue with mechanical pr.per.ies of 10 kPa-10 MPa by changing the type of salt,and many hydr.gels,such as gelatin and silk,could be impr.ved with PTC or.PCT *** exper.ments show that this scaffold can effectively pr.mote the new gener.tion of muscle fiber.,blood vessels,and ner.es within 4 weeks,pr.mpting the r.pid r.gener.tion of lar.e-volume muscle loss injur.es.

关键词： 3D pr.nting Tough hydr.gel scaffold Functional sur.ace str.ctur. Tissue r.gener.tion Biomater.als

Mitigating methodology of har.war. non-ideal char.cter.stics for.non-volatile memor. based neur.l networ.s

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Science China(Infor.ation Sciences) 2025年

作者： Lixia HAN Peng HUANG Yijiao WANG Zheng zhou Haozhang YANG Yiyang CHEN Xiaoyan LIU Jinfeng KANG School of Integr.ted Cir.uits Peking University Beijing Advanced Innovation Center.for.Integr.ted Cir.uits School of Integr.ted Cir.uit Science and Engineer.ng Beihang University

Non-volatile memor.-based computing-in-memor. (nvCIM) par.digm has been extensively studied to boost the ener.y efficiency of neur.l networ. acceler.tor. in edge ***,the degr.dation of infer.nce accur.cy induced by the non-ideal char.cter.stics acr.ss cir.uits,ar.ays,and devices is becoming a cr.cial *** this wor.,we establish a har.war. char.cter.stic behavior.model to analyze the impact of nvCIM non-ideal char.cter.stics on neur.l networ. *** we pr.pose a har.war. awar. tr.ining and weight mapping cor.ection methods to mitigate infer.nce accur.cy *** simulation ver.fication,about 95%infer.nce accur.cy degr.dation is r.cover.d by adopting the pr.posed mitigation method for.var.ous non-ideal char.cter.stics and var.ous neur.l networ. *** feasibility of the pr.posed method is fur.her.pr.ved in an exper.mental example with a flash-based LeNet r.cognition system.

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Inhibitor. gamma-aminobutyr.c acider.ic neur.ns in the anter.or.cingulate cor.ex par.icipate in the comor.idity of pain and emotion

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Neur.l r.gener.tion r.sear.h 2025年第10期20卷 2838-2854页

作者： Lu Guan Mengting Qiu Na Li Zhengxiang zhou r. Ye Liyan Zhong Yashuang Xu Junhui r.n Yi Liang Xiaomei Shao Jianqiao Fang Junfan Fang Junying Du Depar.ment of Neur.biology and Acupunctur. r.sear.h Third School of Clinical MedicineZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina Key Labor.tor. for.r.sear.h of Acupunctur. Tr.atment and Tr.nsfor.ation of Emotional Diseases Third School of Clinical MedicineZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina Fuchun Community Health Ser.ice Center.of Fuyang Distr.ct HangzhouZhejiang ProvinceChina

Pain is often comor.id with emotional disor.er. such as anxiety and *** of the anter.or.cingulate cor.ex has been implicated in pain and pain-r.lated negative emotions that ar.se fr.m impair.ents in inhibitor. gamma-aminobutyr.c acid *** r.view pr.mar.ly aims to outline the main cir.uitr.(including the input and output connectivity)of the anter.or.cingulate cor.ex and classification and functions of differ.nt gamma-aminobutyr.c acider.ic neur.ns;it also descr.bes the neur.tr.nsmitter./neur.modulator. affecting these neur.ns,their.inter.ommunication with other.neur.ns,and their.impor.ance in mental comor.idities associated with chr.nic pain *** under.tanding on their.r.le in pain-r.lated mental comor.idities may facilitate the development of mor. effective tr.atments for.these ***,the mechanisms that r.gulate gamma-aminobutyr.c acider.ic systems r.main *** is also unclear.as to whether.the mechanisms ar. pr.synaptic or.*** explor.tion of the complexities of this system may r.veal new pathways for.r.sear.h and dr.g development.

关键词： anter.or.cingulate cor.ex anxiety chr.nic pain cir.uit communication comor.idity depr.ssion gamma-aminobutyr.c acider.ic neur.ns par.albumin neur.ns synaptic tr.nsmission

Ther.ally tr.gger.d topological polymer.zation in diacetylene-functionalized covalent or.anic fr.mewor. towar. enhanced memr.stive pr.per.ies

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Science China Chemistr. 2025年

作者： Panke zhou Yuxing Huang Ziyue Yu Cong Zhang Qian Chen Yiping Li Chao Lin Xiong Chen State Key Labor.tor. of Photocatalysis on Ener.y and Envir.nment Key Laboratory of Advanced Carbon-Based Functional MaterialsCollege of Chemistry Fuzhou University

The development of stimuli-r.sponsive switching memor. devices and the elucidation of their.switching mechanisms in specific envir.nments ar. cr.cial for.advancing the field of molecular.electr.nics. Her.in, we pr.pose two distinct two-dimensional covalent or.anic fr.mewor.s (COFs), namely Py-EDA and Py-BDA, incor.or.ting acetylene (-C≡C-) or.diacetylene(-C≡C-C≡C-) moieties, r.spectively, tar.eting fabr.cate memor. devices exhibiting stimuli-r.sponsive switching *** findings demonstr.te that the incor.or.tion of acetylene units effectively modulates the electr.nic band str.ctur. and enhances the degr.e ofπ-conjugation, r.sulting in devices that exhibit typical bipolar.nonvolatile memor. per.or.ance. Notably,upon ther.al tr.atment, the memor. behavior.of the ITO/Py-BDA/Ag device tr.nsitions to a wr.te-once-r.ad-many-times(WOr.) mode, displaying decr.ased SET voltage, incr.ased ON/OFF cur.ent r.tio, and r.mar.able r.tention r.liability and cycle stability. This switching behavior.is attr.buted to the occur.ence of inter.ayer.solid-state topological polymer.zation at 350℃, leading to the tr.nsfor.ation of diacetylene columnar.ar.ays into enyne chains within Py-BDA, ther.by fur.her.pr.moting inter.ayer.char.e tr.nsfer.and separ.tion.

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生育支持与欠发达地区育龄女性的生育意愿——基于贵州省88个区县的生育意愿调查

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河南社会科学 2025年第1期33卷 91-101页

作者：周文贵州省社会科学院博士后工作站贵州贵阳550002 贵州财经大学经济学院贵州贵阳550025

生育支持已经成为强化青年生育意愿和生育行为的重要举措,然而受限于研究数据,以往的研究很少对欠发达地区各类生育支持及其效果进行研究。为了研究欠发达地区各类生育支持对育龄女性生育意愿的作用,基于贵州省88个区县的生育意愿调查数... 详细信息

生育支持已经成为强化青年生育意愿和生育行为的重要举措,然而受限于研究数据,以往的研究很少对欠发达地区各类生育支持及其效果进行研究。为了研究欠发达地区各类生育支持对育龄女性生育意愿的作用,基于贵州省88个区县的生育意愿调查数据,从政府政策支持、社会托育支持和家庭代际支持三个维度研究了生育支持对欠发达地区育龄女性生育意愿的影响。研究发现:(1)当前贵州育龄女性的生育意愿已经下降到了较低水平,未来生育水平有进一步下降的风险。(2)家庭代际支持、社会托育支持和政府政策支持对育龄女性的总体生育意愿都具有显著的促进作用,但只有政府政策支持和家庭代际支持对三孩生育意愿具有显著的影响,社会托育支持对三孩生育意愿的影响不显著。(3)异质性分析则发现各类生育支持对35岁以上的育龄女性影响较大,是对35岁以下年轻群体影响的两倍左右。各类支持对不同学历育龄女性的影响也出现了分化,总体上呈现出低学历女性受到家庭支持与政府政策支持影响较大,而高学历女性受到托育服务影响较大的特征。(4)各类生育支持方式对育龄女性生育意愿的协同效应十分显著,当各类生育支持都较强时,对育龄女性生育意愿的影响较大。基于上述结论,一方面,生育支持体系与生育支持政策既要坚持普惠性,又要兼顾不同群体差异化需求;另一方面,需要进一步完善生育支持体系,充分发挥各类生育支持的协同效应,让育龄女性在生育决策时有更多生育支持方式的选择。

关键词：生育支持体系生育意愿欠发达地区被访者驱动抽样调查

Impr.gnating photo-stable gold pr.cur.or.onto uncalcined TS-1 to boost catalytic hydr.-oxidation of pr.pane

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Science China Chemistr. 2025年

作者： Zhihua Zhang Er.huan Yang Fan Liu Kesheng Xu Yuxia Zhong Jinwei Sun Shudong Shi Xuezhi Duan Xinggui zhou State Key Labor.tor. of Chemical Engineer.ng East China University of Science and Technology

Immobilizing highly disper.ed Au nanopar.icles onto titanium silicalite-1 (TS-1) by a simple impr.gnation method under.light is still a challenging *** this wor.,a high photostable Au pr.cur.or.pr.tected by thiol ligands was fir.tly synthesized,and the as-pr.par.d Au pr.cur.or.displayed excellent stability under.light for.over.30 days,while the Au pr.cur.or.without thiol ligands for.ed pr.cipitates after.just 2 h under.***,the Au pr.cur.or.pr.tected by thiol ligands was immobilized on the exter.al sur.ace of uncalcined TS-1 (i.e.,TS-1-B) by the incipient wetness impr.gnation method (IWI method) to pr.par. Au/TS-1-B *** activity of as-pr.par.d Au/TS-1-B catalyst in the hydr.-oxidation of pr.pane to acetone was 1.4 times higher.than that of the catalyst pr.par.d by the deposition-pr.cipitation ur.a method (DPU method).The str.ctur.s of the Au/TS-1-B catalysts pr.par.d by differ.nt methods wer. analyzed by multiple *** to the Au/TS-1-B catalyst pr.par.d by the DPU method,the Au/TS-1-B catalyst synthesized by the IWI method exhibited a nar.ower.size distr.bution of Au nanopar.icles and had mor. small Au par.icles (r.ason for.its super.or.***,the effects of gold loadings,r.action temper.tur. and Si/Ti molar.r.tio on the catalytic per.or.ance of the Au/TS-1-B catalyst pr.par.d by the IWI method wer. also *** addition,the Au/TS-1-B catalyst pr.par.d by the IWI method also exhibited excellent stability for.over.140 h.

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MDCFS: few-shot object detection with multilevel decoupled classifier.

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Optoelectr.nics Letter. 2025年

作者： LI Chuanhui zhou Mian FENG Zhikun SUI Zezhou GAO Zhan School of Computer.Science and Engineer.ng， Tianjin Univer.ity of Technology

Few-shot object detection poses unique challenges as it r.quir.s effectively lear.ing novel classes with limited labeled data. Cur.ent appr.aches often suffer.fr.m biases towar.s base classes dur.ng fine-tuning， leading to suboptimal per.or.ance on detecting novel classes. Additionally， in complex scenes， the confusion between for.gr.und and backgr.und objects fur.her.affects the accur.cy and r.bustness of the model. To addr.ss these issues， we pr.pose the Multilevel Decoupling Classification Few-Shot Algor.thm (MDCFS). we decouple the standar. classifier.into a par.llel for.gr.und classifier.and a backgr.und classifier.in the Few-Shot Object Detection (FSOD) setting. This decoupling enables the independent separ.tion of positive samples fr.m noisy negative samples， alleviating the for.gr.und-backgr.und confusion pr.blem commonly encounter.d in few-shot detector.. For.Gener.lized Few-Shot Object Detection (G-FSOD)， wher. the few-shot dataset contains base classes， we fur.her.decouple the for.gr.und classification head into a base class classification head and a novel class classification head. To ensur. balance， we assign mor. weight to the novel class classification head， effectively addr.ssing the bias towar.s base classes. Fur.her.or.， we optimize the initial weights of the few-shot fine-tuning stage， significantly r.ducing tr.ining time and mitigating catastr.phic for.etting in G-FSOD. Additionally， we incor.or.te metr.c lear.ing into our.model with minimal cost. Exper.mental r.sults demonstr.te the effectiveness of our.appr.ach. Compar.d to state-of-the-ar. few-shot object detection methods based on fine-tuning， MDCFS achieves per.or.ance impr.vements of up to 6.3% on the PASCAL VOC dataset and 1.5% on the COCO dataset.

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Efficient lar.e-ar.a flexible or.anic photovoltaic modules on tr.nspar.nt thin silver.electr.des

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Science China Chemistr. 2025年

作者： Cong Xie Zedong Xiong Xinlu Liu Wen Wang Yang Liu Xueshi Jiang Xin Lu Lulu Sun Yinhua zhou Wuhan National Labor.tor. for.Optoelectr.nics Huazhong University of Science and Technology Kunming Institute of Physics

Lar.e-ar.a flexible or.anic photovoltaic（OPV） modules ar. challenging to achieve high power.conver.ion efficiency（PCE）.Electr.cal shunts or.shor.ages gener.lly occur.in lar.e-ar.a OPV modules due to the ultr.thin（100–200 nm） and soft active layer.. Impr.ving the sur.ace smoothness of bottom tr.nspar.nt electr.de will be able to suppr.ss the shunts and shor.ages. In this wor., we r.por. a method to fabr.cate smooth and flexible tr.nspar.nt electr.des based on thin silver.film, and fur.her.to fabr.cate efficient lar.e-ar.a flexible OPV modules. The fabr.cated thin silver.tr.nspar.nt electr.des simultaneously have high conductivity, high optical tr.nsmittance, good mechanical flexibility and low sur.ace r.ughness. Humidity exposur.（h.e.）tr.atment on MoO3effectively facilitates the continuous gr.wth of the thin tr.nspar.nt silver.electr.de. 6 nm silver.film on MoO3（h.e.） on plastic substr.te shows a tr.nsmittance up to 89%, a sheet r.sistance of 15 Ω/sq, and a low sur.ace r.ughness with a r.otmean-squar. value of 0.276 nm. Fur.her.or., 52-cm2flexible or.anic solar.modules（15 subcells） showed a cer.ified PCE of12.66%. Fur.her.or., a 1350 cm2flexible component assembled by 25 pieces of 52–55 cm2modules showed cer.ified PCE of12.10% with an open-cir.uit voltage of 62.85 V.

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