检索结果-南通市图书馆

高师理科学刊 2018年第6期38卷 70-73页

作者：温立书王雪茹沈阳航空航天大学理学院辽宁沈阳110136

通过实例讨论克拉默法则的逆向问题、齐次线性方程组的逆向问题及非齐次线性方程组的逆向问题等线性方程组反解问题.

关键词：齐次线性方程组非齐次线性方程组克拉默法则消元法矩阵的秩

Dissecting the cell microenvironment of ovarian endometrioma through single-cell RNA sequencing

在线全文

学校读者我要写书评

暂无评论

Science China life Sciences 2025年第1期68卷 116-129页

作者： Jiangpeng Wu Siyu Xia wenting Ye Yan Sun Jing Cai Fubing Yu Haiping wen Xiuwei Yi Taikang li Mingwei Chen Jiayun Chen Ge Song Chuanbin Yang Yali Song Jigang Wang Department of Reproductive Medicine Dongguan Maternal and Child Health Care Hospital Department of Urology and Shenzhen Clinical Research Centre for GeriatricsShenzhen People's HospitalSouthern University of Science and Technology State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Reproductive Medicine Center Foshan Women and Children Hospital State Key Laboratory of Antiviral Drugs School of PharmacyHenan University

Ovarian endometrioma（OE）, also known as “chocolate cysts,” is a cystic mass that develops in the ovaries due to endometriosis and is a common gynecological condition characterized by the growth of endometrial tissue outside the uterus, leading to symptoms such as dysmenorrhea, pelvic pain, and infertility. However, the precise molecular and cellular mechanisms driving this pathophysiology remain largely unknown, posing challenges for diagnosis and treatment. Here, we employed integrated single-cell transcriptomic profiling of over 52,000 individual cells from endometrial tissues of OE patients and healthy donors and identified twelve major cell populations. We identified notable alterations in cell type-specific proportions and molecular signatures associated with OE. Notably, the activation of IGFBP5+macrophages with pro-inflammatory properties, NK cell exhaustion, and aberrant proliferation of IQCG+and KLF2+epithelium are key features and may be the potential mechanisms underlying the pathogenesis of OE. Collectively, our data contribute to a better understanding of OE at the single cell level and may pave the way for the development of novel therapeutic strategies.

关键词： ovary high-throughput sequencing transcriptomics gene expression analysis ligand-receptor analysis

A self-adaptive inorganic in-situ separator by particle crosslinking for nonflammable lithium-ion batteries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 469-480页

作者： Jiarui Yang Jiuzhou liu wenrui Cai Ziyu Zhao Shan Wang Lu He Shanshan Lv Zhiwei Zhu Zhongfeng Ji Guojiang wen Hua li Yuanming Zhai Xuewei Fu Wei Yang Yu Wang College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University

All-safe liquid-state lithium-ion batteries(ASLS-liBs) is of great interest as they can potentially combine the safety of all-solid-state batteries with the high performance and low manufacturing cost of traditional liquid-state liBs. However, the practical success of ASLS-liBs is bottlenecked by the lack of advanced separator technology that can simultaneously realize high performances in puncturing-tolerability,fire-resistance, and importantly, wetting-capability with non-flammable liquid-electrolytes. Here, we propose a concept of inorganic in-situ separator(IISS) by hybrid-sol physical crosslinking directly onto the electrode surface to address the above challenges. Particularly, the hybrid-sol is designed with silica nanoparticles as the building block and poly(vinylidene difluoride) nanoparticles as the crosslinking agent. The critical factors for controlling the IISS microstructures and properties have been systematically investigated. The advantages of the IISS have been confirmed by its fast wetting with various fireresistant liquid-electrolytes, customizable thickness and porous structures, robust interface with planar or three-dimensional(3D)-structured electrodes, and importantly, unexpected self-adaptability against puncturing. Enabled by the above merits, a fire-resistant ASLS-liB is successfully assembled and demonstrated with stable electrochemical performance. This sol-crosslinked IISS may open an avenue for the studies on the next-generation separator technology, cell assembling, solid electrolyte processing as well as non-flammable secondary batteries.

关键词： Silica nanoparticles

血必净对爆炸致家兔急性肺损伤的保护作用及其机制研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国现代医学杂志 2017年第1期27卷 29-34页

作者：黄鑫郝建李树雯马宏昊李鲁欢贺慧博李成恩安徽医科大学解放军杭州临床学院浙江杭州310007 浙江省杭州一二八医院心肺康复科浙江杭州310007 中国科学技术大学近代力学系安徽合肥230027

目的探讨血必净对爆炸致家兔急性肺损伤(Ali)时肺组织核转录因子-κB(NF-κB)活性的影响及其对Ali的作用机制。方法将32只清洁家兔随机分为4组,每组8只。对照组(NS)、Ali组、低剂量血必净干预组(L-XBJ)和高剂量血必净干预组(H-XBJ)。爆... 详细信息

目的探讨血必净对爆炸致家兔急性肺损伤(Ali)时肺组织核转录因子-κB(NF-κB)活性的影响及其对Ali的作用机制。方法将32只清洁家兔随机分为4组,每组8只。对照组(NS)、Ali组、低剂量血必净干预组(L-XBJ)和高剂量血必净干预组(H-XBJ)。爆炸致伤家兔,复制Ali动物模型后,L-XBJ、H-XBJ组分别注射10和20 ml/kg血必净溶液,NS、Ali两组注射等量生理盐水。24 h时采集静脉血及部分肺组织,测定肺湿干重比(W/D),酶联免疫吸附法检测血清中肿瘤坏死因子-α(TNF-α)、白细胞介素6(IL-6)、白细胞介素10(IL-10)水平,Western blot检测肺组织NF-κB蛋白表达量,逆转录聚合酶链反应检测肺组织NF-κB m RNA表达水平,光镜下观察肺组织病理学改变。结果 L-XBJ、H-XBJ组W/D小于Ali组并呈浓度依赖性。与Ali组比较,血必净可以降低血清中TNF-α、IL-6含量,降低NF-κB m RNA和蛋白表达,提高IL-10含量。肺病理切片显示,Ali组肺组织严重出血、水肿及大量炎症细胞浸润,L-XBJ、H-XBJ组肺损伤程度明显减轻。结论血必净干预能显著下调促炎因子TNF-α、IL-6水平及上调抗炎因子IL-10水平,并抑制NF-κB活化,阻断其介导的炎症反应通路,减轻Ali,保护肺组织。

关键词：血必净急性肺损伤爆炸伤核转录因子-κB

固定化酒类酒球菌31DH酿造干红葡萄酒的研究

在线全文

学校读者我要写书评

暂无评论

食品科技 2001年第6期26卷 46-47,45页

作者：骆艳娥李华刘树文李泽福西北农林科技大学葡萄酒学院杨凌712100

通过选用不同的材料调节干固菌胶粒的比重,使固定化酒类酒球菌31DH悬浮于干红葡萄酒中进行苹果酸—乳酸发酵,并测定这些材料对固定化胶粒相对扩散系数的影响。然后将固定化31DH与游离31DH以相同的生物量接种于干红葡萄酒中进行MLF。苹... 详细信息

通过选用不同的材料调节干固菌胶粒的比重,使固定化酒类酒球菌31DH悬浮于干红葡萄酒中进行苹果酸—乳酸发酵,并测定这些材料对固定化胶粒相对扩散系数的影响。然后将固定化31DH与游离31DH以相同的生物量接种于干红葡萄酒中进行MLF。苹果酸—乳酸发酵结果表明:用固定化31DH与游离31DH酿造的干红葡萄酒的理化指标差异不显著,但用固定化31DH酿造的葡萄酒的感官质量明显优于用游离31DH酿造的葡萄酒的感官质量。

关键词：固定化酒精酒球菌31DH 比重干红葡萄酒苹果酸乳酸发酵

基于遗传算法的倒立摆系统模糊九点控制器参数优化

在线全文

学校读者我要写书评

暂无评论

西南大学学报（自然科学版） 2014年第11期36卷 191-200页

作者：祁虔罗婷刘枫唐永川文树理杨阳西南大学计算机与信息科学学院重庆400715

利用改进的遗传算法,对模糊九点控制器的参数进行优化,以优化的参数为基准,对其微调后在一级倒立摆上进行实时控制.实验表明优化后的参数能够使摆杆快速稳定,小车震荡幅值小,系统的控制效果好.

关键词：倒立摆九点控制器遗传算法

Polarization-encoded neural networks with simplified grating patch

在线全文

学校读者我要写书评

暂无评论

Science China Technological Sciences 2025年

作者： Chengyan ZHONG Xiang WANG lingfei li Yuanchi CUI Lei XIAO Dawei SONG Junxiong GUO wen HUANG Yufeng GUO Yu liU College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology College of Integrated Circuits Hangzhou Global Scientific and Technological Innovation Centre Zhejiang University Nanjing Mumusili Technology Co. LTD School of Integrated Circuits Tsinghua University Institute of Advanced Study School of Electronic Information and Electrical Engineering Chengdu University State Key Laboratory of Electronic Thin Films and Integrated Devices School of Integrated Circuit Science and EngineeringUniversity of Electronic Science and Technology of China

Optical neural networks (ONNs) offer a promising solution for high-performance, energy-efficient artificial intelligence hardware by leveraging the parallelism and speed of light. However, the large-scale implementation of ONNs remains challenging due to the bulky footprint and complex control of optical synapses. In this work, we propose and simulate a plasmonic polarized synaptic architecture that overcomes the diffraction limit and enables ultra-compact ONNs. By tuning the polarization state of incident light, the optical transmittance through each plasmonic unit can be dynamically adjusted to represent a synaptic weight. Our plasmonic structures, with features as small as 40 nm, operate well below this limit in the visible spectrum (400–750 nm). Compared with diffraction and interference-based circuit designs, our proposed method achieves a substantial reduction in synaptic density by factors of 150000-fold and 1500-fold, respectively. Furthermore, we successfully demonstrate a proof-of-concept plasmonic ONN applied to the Canadian Institute for Advanced Research—10classes (CIFAR-10) dataset using a Visual Geometry Group network with 16 layers (VGG16) model. After training for 80epochs, the network achieves an accuracy of 93%. The polarization-tunable plasmonics paves the way towards scalable ONNs for next-generation artificial intelligence (AI) accelerators and smart sensors.

关键词：

Stepwise assembly to construct stable copper(I) cluster-based circularly polarized luminescent MOFs

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Jing-wen Xie Meng-Ting Wang Yan Jin Si li Jian-Hua Qin shuang-Quan Zang Tomas C.W.Mak College of Chemistry Henan Key Laboratory of Crystalline Molecular Functional Materials Zhengzhou University College of Chemistry and Chemical Engineering Luoyang Normal University Department of Chemistry The Chinese University of Hong Kong

Circularly polarized luminescence （CPL） materials have been extensively studied in recent years owing to their widespread applications in 3D display,optical storage,optical anti-counterfeiting,and biological imaging,***（I） clusters have emerged as a promising candidate for CPL materials,driven by their cost-effectiveness,superior luminescent properties,precise structure,and low ***,the poor environmental stability of copper（I） clusters renders their synthesis and preservation challenging,thereby significantly impeding their ***,we have designed and synthesised a chiral double-coordinated ligand in order to construct copper（I） cluster nodes that can be further *** anticipated,by utilizing stepwise assembly strategy,a Cu4cluster node co-modified by chiral alkynyl ligands and triphenylphosphine was further assembled with Cd2+ions to obtain 2D layers structure,L/*** L/D-Cu4-Cd exhibits excellent stability and optical properties,including bright yellow emission,solvent-responsive luminescence,and CPL activity with a maximum glumup to 2.0×10-3,which shows potential applications in the WLED and *** interestingly,the material also exhibits deflection ability towards different wavelengths of linearly polarized light,showing certain potential in the preparation of circular polarizer.

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

高寒地区平屋顶保温层厚度反演

大连铁道学院学报 2006年第1期27卷 14-17页

作者：温立书郑忠武曲坤东北大学东软信息技术学院基础部辽宁大连116023 大连交通大学数理系辽宁大连116028

建筑节能的发展和新型保温材料的使用中,合理的设计墙体及屋顶保温层的厚度,日益成为目前建筑节能的重要问题.将高寒地区平屋顶保温层厚度设计问题抽象为热传导方程几何边界反问题,通过不断地数值模拟,分析比较结果,得出保温层(文中为... 详细信息

建筑节能的发展和新型保温材料的使用中,合理的设计墙体及屋顶保温层的厚度,日益成为目前建筑节能的重要问题.将高寒地区平屋顶保温层厚度设计问题抽象为热传导方程几何边界反问题,通过不断地数值模拟,分析比较结果,得出保温层(文中为加气混凝土层)厚度为250 mm^300 mm时,屋顶内表面的温度变化值落在16℃~24℃之间,此时的保温层厚度为所求得最佳保温层厚度.

关键词：保温层厚度微分方程反演数值模拟

在线全文

学校读者我要写书评

暂无评论

磨料主要机械性能的试验研究

天津大学学报 1984年第1期 65-75页

作者：张力真张文曙宋力宏李国玉董鸣天津大学机械工业部第二砂轮厂

本文是我们研究国产磨料主要机械性能的第一部分。主要是对磨粒强度和破碎过程以及磨粒韧性进行了试验研究。文中介绍了所用设备、试验程序,以及试验时应注意的事项。并把大量试验数据,分类列表。在磨料破碎性方面,论述了磨粒的破碎形... 详细信息

本文是我们研究国产磨料主要机械性能的第一部分。主要是对磨粒强度和破碎过程以及磨粒韧性进行了试验研究。文中介绍了所用设备、试验程序,以及试验时应注意的事项。并把大量试验数据,分类列表。在磨料破碎性方面,论述了磨粒的破碎形式和破碎情况,磨料粉碎方式和粒度对抗压强度的影响等。在磨料韧性方面,提出韧性公式。还论述了干燥与不干燥磨粒韧性不同的原因,固定试验条件并论证试验装置调整的正确性;各磨料韧性值大小顺序的原因;粒度大小对韧性的影响等。这些,都对改进磨料性能和合理选用磨料,有一定的指导意义和实用价值。

关键词：磨粒破碎过程平均抗压强度磨料辅料机械性能力学性质破碎力