检索结果-南通市图书馆

Elastic three-dimensional phononic topological insulators with Dirac hierarchy

science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 54-62页

作者： shao-Yong Huo Qiu-shuang Yang Jiu-Jiu Chen hong-Kang Li Long-Chao Yao Fu-Chun he Chun-Ming Fu College of Mechanical Engineering University of South ChinaHengyang 421001China state Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China

Three-dimensional(3D)phononic topological insulators(TIs)featuring two-dimensional(2D)surface states and one-dimensional(1D)hinge states have opened up a new route for multi-dimensional robust wave transport,providing unprecedented methods for integrated acoustic sensors and energy harvesting ***,aiming at the elastic 3D phononic TI with gapless surface states and hinge states,the realization of elastic 3D phononic TIs with gapless surface states and hinge states is a significant challenge due to the complicated multi-mode polarization of elastic waves in 3D *** this study,we demonstrate an elastic 3D phononic TI with a Dirac hierarchy by elaborately operating the corresponding spatial symmetries of the chiral honeycomb ***,a 3D double Dirac cone of elastic wave can be achieved by doubling the lattice along the outof-plane direction to fold two iso-frequency Weyl *** topological phase transitions and 2D gapless two-fold Dirac surface states of elastic wave are realized by breaking the half-lattice spatial translation ***,based on the Brillouin zone folding along the in-plane direction,the 2D gapless two-fold surface Dirac cones are folded into four-fold surface Dirac ***,by inducing the relative radius of adjacent holes to break the in-plane spatial inversion symmetry,the fourfold surface Dirac cones are gapped and associated with a surface state inversion,in which the gapless 1D hinge Dirac dispersion is *** research offers a route for engineering the hierarchies of TIs in 3D elastic wave systems and provides new possibilities for designing 3D ultrasonic devices with unconventional functions.

关键词： Dirac topological hierarchy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Honeycomb-like biochar framework coupled with Fe_(3)O_(4)/Fes nanoparticles as efficient heterogeneous Fenton catalyst for phenol degradation

引用

Journal of Environmental sciences 2024年第2期136卷 390-399页

作者： Aihua Cheng Yi he Xiaohe Liu Chi he Department of Environmental Engineering College of Geology and EnvironmentXi’an University of Science and TechnologyXi’an 710054China state Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an 710049China National Engineering Laboratory for VOCs Pollution Control Material and Technology University of Chinese Academy of SciencesBeijing 101408China

Achieving an efficient and stable heterogeneous Fenton reaction over a wide pH range is of great significance for wastewater ***,a pollen-derived biochar catalyst with a unique honeycomb-like structure,coupled with the dispersion of magnetic Fe_(3)O_(4)/Fes(Fe/s)nanoparticles,was synthesized by simple impregnation precursor,followed by *** prepared Fe/s-biochar catalyst demonstrated outstanding phenol degradation efficiency across a wide pH range,with 98%of which eliminated even under neutral conditions(pH 7.0).The high catalytic activity was due to the multilevel porous structure of pollenderived biochar provided enough active sites and allowed for better electron transfer,then increases oxidation ability to promote the ***,the acid microenvironment formed by sO_(4)^(2-)group from Fe/s composite extended the pH range for Fenton reaction,and s^(2-)facilitated the conversion of≡Fe^(3+)to≡Fe^(2+),resulting in remarkable degradation ***,biochar can effectively promote cycling stability by limiting Fe *** work may provide a general strategy for designing 3D framework biochar-based Fe/s catalysts with excellent performance for heterogeneous Fenton reactions.

关键词： Biomass Biochar Fenton reaction Fe_(3)O_(4)/Fes(Fe/s) Phenol degradation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

systems science in the new era: intelligent systems and big data

引用

science China(Information sciences) 2024年第3期67卷 308-310页

作者： Wenwu YU Duxin CheN hongzhe LIU he WANG Jinde CAO Zengru DI Xiaojun DUAN Bin JIA Xiaodong DING Yiguang hong school of Mathematics Southeast University Purple Mountain Laboratories International Academic Center of Complex systems Beijing Normal University College of science National University of Defense Technology school of systems science Beijing Jiaotong University Business school University of Shanghai for Science and Technology Department of Control science and Engineering Tongji University

This study introduces the emergence, research challenges,and future development of intelligent systems and big data(IsBD) and discusses the significance of IsBD to systems science. To this end, an overview of systems science is first presented, followed by the conclusion that the development of artificial intelligence(AI) has promoted the derivation and development of intelligent systems(Iss).

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Low surface Brightness Galaxies from BAss+MzLs with Machine Learning

引用

Research in Astronomy and Astrophysics 2024年第5期24卷 185-197页

作者： Peng-Liang Du Wei Du Bing-Qing Zhang Zhen-Ping Yi Min he hong Wu Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China school of Astronomy and space science University of Chinese Academy of SciencesBeijing 100049China school of Mechanical Electrical and Information EngineeringShandong UniversityWeihai 264209China

From ∼5000 deg^(2) of the combination of the Beijing–Arizona sky survey and Mayall z-band Legacy survey which is also the northern sky region of the Dark Energy spectroscopic Instrument (DEsI) Legacy Imaging surveys, we selected a sample of 31,825 candidates of low surface brightness galaxies (LsBGs) with the mean effective surface brightness 24.2sec^(−2) and the half-light radius 2.″5 sed on the released photometric catalog and the machine learning model. The distribution of the LsBGs is bimodal in the g−r color, indicating the two distinct populations of the blue (g−r 0.60) LsBGs. The blue LsBGs appear spiral, disk or irregular while the red LsBGs are spheroidal or elliptical and spatially clustered. This trend shows that the color has a strong correlation with galaxy morphology for LsBGs. In the spatial distribution, the blue LsBGs are more uniformly distributed while the red ones are highly clustered, indicating that red LsBGs preferentially populate a denser environment than the blue LsBGs. Besides, both populations have a consistent distribution of ellipticity (median ∈∼ 0.3), half-light radius (median r_(eff) ∼ 4″) and sérsic index (median n=1), implying the dominance of the full sample by the round and disk galaxies. This sample has definitely extended the studies of LsBGs to a regime of lower surface brightness, fainter magnitude and broader other properties than the previously sloan Digital sky survey-based samples.

关键词： catalogs-galaxies fundamental parameters-galaxies statistics-techniques photometric

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Efficacy and safety of sanjie Analgesic Capsule in Patients with Endometriosis-Associated Pain:A Multicenter,3:1 Randomized,Double-Blind,Placebo-Controlled Trial

引用

Chinese Journal of Integrative Medicine 2024年第9期30卷 780-787页

作者： LENG Jin-hua DUAN Hua GUAN Zheng ZHOU Ying-fang QU hong XU Kai-hong ZHANG shao-fen ZHANG Qin WANG Xin LIN Kai-qing LANG Jing-he Department of Obstetrics and Gynecology Peking Union Medical College HospitalBeijing100730China Department of Gynecology Beijing Obstetrics and Gynecology HospitalCapital Medical UniversityBeijing100006China Department of Gynecology Chinese PLA General HospitalBeijing100039China Department of Gynecology Peking University First HospitalBeijing100034China Department of Gynecology Beijing Chao-yang HospitalBeijing100020China Department of Gynecology Womens Hospital School of Medicine Zhejiang UniversityHangzhouZhejiang Province310006China Department of Gynecology Obstetrics and Gynecology Hospital of Fudan UniversityShanghai200090China Department of Gynecology Hangzhou Hospital of Traditional Chinese MedicineHangzhou310007China Department of Gynecology Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110032China

Objective:To assess the efficacy and safety of sanjie Analgesic Capsule(sAC)in Chinese patients with endometriosis-associated ***:This was a multicenter,randomized,double-blind,placebo-controlled trial conducted at 15 centers between November 2013 and July 2017 in *** 323 patients with endometriosis were randomized at a 3:1 ratio to the sAC group(241 cases)and placebo group(82 cases)by stratified block *** in the sAC or placebo groups were given sAC or placebo 1.6 g 3 times per day,orally,respectively since the first day of menstruation for 3 consecutive menstrual *** primary endpoint was clinical response to dysmenorrhea evaluated using a 10-point Visual Analogue scale at 3 and 6 *** secondary endpoint was the pain score evaluated by VAs(chronic pelvic pain,defecation pain,and dyspareunia)at 3 and 6 months,and the pain recurrence rate at 6 *** events(AEs)were recorded during the ***:A total of 241 women were included in the sAC group,and 82 were in the placebo *** these women,217(90.0%)and 71(86.6%)completed the intervention,*** 3 months,overall response rate(ORR)was significantly higher in women administered sAC(80.1%)compared with those who received a placebo(30.5%,Psix months after treatment,the ORR for dysmenorrhea was 62.7%in the sAC group and 31.7%in the placebo group(Psignificantly improved by sAC compared with placebo(both Phe incidence rates of total AEs events in the sAC and placebo groups were 6.6%and 9.8%,respectively,and no significant difference was shown between the two groups(P=0.339).Conclusion:sAC is well-tolerated and may improve dysmenorrhea in women with endometriosis-associated pain.

关键词： endometriosis pain sanjie Analgesic Capsule randomized controlled trial Chinese medicine

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Restoring cellular calcium homeostasis to rescue ER stress by 1,2-bis(2-aminophenoxy)ethane-N,N,N’,N’-tetraacetic acid acetoxymethyl ester-loaded lipid-mPLGA hybrid-nanoparticles for acute kidney injury therapy

引用

Chinese Chemical Letters 2024年第3期35卷 337-345页

作者： Jingwen Zhang Jiahui Yan Yanan Wang hong Liu Xueping sun Yuchao Gu Liangmin Yu Changcheng Li Jun Wu Zhiyu he Frontiers science Center for Deep Ocean Multispheres and Earth system and Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China College of Chemistry and Chemical Engineering Ocean University of ChinaQingdao 266100China school of Medicine and Pharmacy Ocean University of ChinaQingdao 266003China sanya Oceanographic Institution Ocean University of ChinaQingdao 572024China Bioscience and Biomedical Engineering Thrust The Hong Kong University of Science and Technology(Guangzhou)NanshaGuangzhou 511400China Division of Life science The Hong Kong University of Science and TechnologyHong Kong 999077China

Early pathogenesis of ischemia-reperfusion(I/R)-induced acute kidney injury(AKI)is dominated by intracellular calcium overload,which induces oxidative stress,intracellular energy metabolism disorder,inflammatory activation,and a series of pathologic cascaded reactions that are closely intertwined with self-amplifying and interactive feedback loops,ultimately resulting in cell damage and kidney ***,most nanomedicines originate from the perspective of antioxidant stress,which can only quench existing reactive oxide species(ROs)but cannot prevent the continuous production of ROs,resulting in insufficient *** a safe and promising drug,BAPTA-AM is hydrolyzed into BAPTA by intracellular esterase upon entering cells,which can rapidly chelate with overloaded Ca^(2+),restoring intracellular calcium homeostasis,thus inhibiting ROs regeneration at the ***,we designed a KTP-targeting peptide-modified yolk-shell structure of liposome–poly(ethylene glycol)methyl ether-block-poly(L-lactide-co-glycolic)(mPLGA)hybrid nanoparticles(he characteristics of high encapsulation rate,high colloid stability,facile modification,and prolonged blood circulation *** the BA/mPLGA@Lipo-KTP was targeted to the site of kidney injury,the cholesteryl hemisuccinate(CheMs)in the phospholipid bilayer,as an acidic cholesterol ester,was protonated in the simulated inflammatory slightly acidic environment(pH 6.5),causing the liposomes to rupture and release the BA/mPLGA nanoparticles,which were then depolymerized by intracellular *** BAPTA-AM was diffused and hydrolyzed to produce BAPTA,which can rapidly cut off the malignant loop of calcium overload/ROs generation at its source,blocking the endoplasmic reticulum(ER)apoptosis pathway(ATF4–CHOP–Bax/Bcl-2,Casp-12–Casp-3)and the inflammatory pathway(TNF-α–NF-κB–IL-6 axes),thus alleviating pathological changes in kidney tissue,thereby inhibiting the expression of renal tubular marker kidney injury mole

关键词： BAPTA-AM Calcium overload Acid-responsive AKI ER stress

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The intrinsic developmental age signal defines an age-dependent climbing behavior in cucumber

引用

Horticultural Plant Journal 2024年第3期10卷 797-808页

作者： Zezhou hong Xinrui Wang Zipei Fan Jiahao Wang Aiyi Yang Guochao Yan Yong he Huasen Wang Zhujun Zhu Yunmin Xu College of Horticulture science Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China Key Laboratory of Quality and safety Control for subtropical Fruit and Vegetable Ministry of Agriculture and Rural AffairsHangzhouZhejiang 311300China Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province HangzhouZhejiang 311300China

The tendril is a climbing organ in cucurbits and functions in physical support and to avoid shading by neighboring ***,how cucurbits produce tendrils to obtain climbing ability is largely *** this study,tendril phenotypes were investigated during different developmental *** results revealed that tendril growth exhibited an age-dependent pattern in *** growth was inhibited,and the tendril was formed as a short tendril[nonfunctional tendril(nonF-tendril),approximately 0.1 cm]during the seedling *** contrast,enhanced cell proliferation and cell expansion led to rapid elongation of the tendril during the climbing stage,and the tendril formed as a functional tendril(F-tendril,approximately 30 cm)to obtain climbing ***-qPCR detection showed that age-dependent tendril growth correlated negatively with the abundance of the conserved age regulator *** induced CsmiR156 to inhibit CssPLs,and F-tendril formation and climbing ability were delayed in defoliated cucumbers,which confirmed the role of CsmiR156 in regulating tendril growth in ***,exogenous gibberellin(GA)treatment showed that GA positively regulated tendril growth,and RT-qPCR detection showed that the GA bio-synthetic genes and metabolic genes were affected by age pathway,suggesting that the age pathway depended on GA bio-synthetic and metabolic pathway to regulate cell expansion to determine tendril *** summary,our work reveals that change in tendril type is an important marker of phase transition in cucumber,and tendril growth is regulated by an intrinsic developmental age signal,ensuring that the cucumber obtains climbing ability at a suitable age.

关键词： Cucumber Tendril Age CsmiR156 CssPL Climbing ability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

sTAT3 ameliorates truncated tau-induced cognitive deficits

引用

Neural Regeneration Research 2024年第4期19卷 915-922页

作者： Bingge Zhang Huali Wan Maimaitijiang Maierwufu Qian Liu Ting Li Ye he Xin Wang Gongping Liu Xiaoyue hong Qiong Feng Department of Pathophysiology School of Basic Medicine and the Collaborative Innovation Center for Brain ScienceKey Laboratory of Ministry of Education of China and Hubei Province for Neurological DisordersTongji Medical CollegeHuazhong University of Science and Technology Department of Laboratory Medicine Guangdong ProvincialPeople's Hospital(Guangdong Academy of Medical Sciences)Southern Medical University Department of Laboratory Medicine Zhongnan Hospital of Wuhan University Department of Pathology Wuhan Children's HospitalTongji Medical CollegeHuazhong University of Science and Technology

Proteolytic cleavage of tau by asparagine endopeptidase(AEP)creates tau-N368 fragments,which may drive the pathophysiology associated with synaptic dysfunction and memory deterioration in the brain of Alzheimer’s disease ***,the molecular mechanisms of truncated tau-induced cognitive deficits remain *** suggests that signal transduction and activator of transcription-3(sTAT3)is associated with modulating synaptic plasticity,cell apoptosis,and cognitive *** luciferase reporter assays,electrophoretic mobility shift assays,western blotting,and immunofluorescence,we found that human tau-N368 accumulation inhibited sTAT3 activity by suppressing sTAT3 translocation into the *** of sTAT3 improved tau-N368-induced synaptic deficits and reduced neuronal loss,thereby improving the cognitive deficits in tau-N368 ***,in tau-N368 mice,activation of sTAT3 increased N-methyl-D-aspartic acid receptor levels,decreased Bcl-2 levels,reversed synaptic damage and neuronal loss,and thereby alleviated cognitive deficits caused by *** together,sTAT3 plays a critical role in truncated tau-related neuropathological *** indicates a new mechanism behind the effect of tau-N368 on synapses and memory ***3 can be used as a new molecular target to treat tau-N368-induced protein pathology.

关键词： Alzheimer’s disease apoptosis cognitive deficit memory neurodegenerative disease neuron loss N-methyl-D-aspartic acid receptor sTAT3 synapse tau-N368

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Acousto-optic scanning multi-photon lithography with high printing rate

引用

Opto-Electronic Advances 2024年第2期7卷 1-3页

作者： Minghui hong Pen-Tung sah Institute of Micro-Nano science and Technology Xiamen UniversityXiamen 361005China

As a manufacturing method that is focused on end-users,3D printing has gained a lot of attention in recent years due to its unique advantages in fabricating complex three-dimensional *** new micro-nano 3D printing methods have been developed to meet the demand for high-precision and high-yield *** them,multi-photon-photon lithography(MPL) is a promising 3D nanofabrication technology due to its capability of true 3D digital processing and nanoscale processing resolution beyond the diffraction *** has been widely used to fabricate microoptics10,11,photonic crystals12,microfluidics13,meta-surfaces14,and mechanical metamaterials15.

关键词： photon Acous scanning

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Regulating Actuations and shapes of Liquid Crystal Elastomers through Combining Dynamic Covalent Bonds with Cooling-Rate-Mediated Control

引用

Chinese Journal of Polymer science 2024年第10期42卷 1442-1448,I0008页

作者： Ya-Wen Liu Huan Liang hong-Tu Xu En-Jian he Zhi-Jun Yang Yi-Xuan Wang Yen Wei Zhen Li Yan Ji The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing100084China Advanced Materials and Energy Center Academy of Aerospace Science and InnovationBeijing100088China

Realizing multiple locked shapes in pre-oriented liquid crystal elastomers(LCEs)is highly desired for diversifying deformations and enhancing ***,conventional LCEs only deform between two shapes for each actuation cycle upon liquid crystal-isotropic phase transitions induced by external ***,we propose to regulate the actuation modes and the locked shapes of a pre-orientated epoxy LCE by combining dynamic covalent bonds with cooling-rate-mediated *** actuation modes can be adjusted on demand by exchange reactions of dynamic covalent *** from the established actuation modes,such as elongation,bending,and spiraling,the epoxy LCE displays varied locked shapes at room temperature under different cooling *** mediums are utilized to control the cooling rate,including water,silicone oil,and copper *** approach provides a novel way for regulating the actuation modes and locked shapes of cuttingedge intelligent devices.

关键词： Liquid crystal elastomer Epoxy Dynamic covalent bond Vitrimer Cooling rate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：