检索结果-南通市图书馆

Cloud-Model-Based Feature Engineering to Analyze the Energy-Water Nexus of a Full-Scale Wastewater Treatment Plant

Engineering 2024年第5期36卷 63-75页

作者： Shan-Shan Yang xin-lei yu Chen-Hao Cui Jie Ding lei He Wei Dai Han-Jun Sun Shun-Wen Bai yu Tao Ji-Wei Pang Nan-Qi Ren State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150000China Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China School of Civil and Environmental Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China China Energy Conservation and Environmental Protection Group Beijing 100089China

Wastewater treatment plants(WWTPs)are important and energy-intensive municipal *** energy consumption and relatively low operating performance are major challenges from the perspective of carbon ***,water-energy nexus analysis and models for WWTPs have rarely been reported to *** this study,a cloud-model-based energy consumption analysis(CMECA)of a WWTP was conducted to explore the relationship between influent and energy consumption by clustering its influent’s *** principal component analysis(PCA)and K-means clustering were applied to classify the influent condition using water quality and volume *** energy consumption of the WWTP is divided into five standard evaluation levels,and its cloud digital characteristics(CDCs)were extracted according to bilateral constraints and golden ratio *** results showed that the energy consumption distribution gradually dispersed and deviated from the Gaussian distribution with decreased water concentration and *** days with high energy efficiency were extracted via the clustering method from the influent category of excessive energy consumption,represented by a compact-type energy consumption distribution curve to identify the influent conditions that affect the steady distribution of energy *** local WWTP has high energy consumption with 0.3613 kW·h·m^(-3)despite low influent concentration and volumes,across four consumption levels from low(I)to relatively high(IV),showing an unsatisfactory operation and management *** average oxygenation capacity,internal reflux ratio,and external reflux ratio during high energy efficiency days recognized by further clustering were obtained(0.2924-0.3703 kg O_(2)·m^(-3),1.9576-2.4787,and 0.6603-0.8361,respectively),which could be used as a guide for the days with low energy ***,this study offers a water-energy nexus analysis method to identify influent conditions with operational manageme

关键词： Wastewater treatment plants Cloud-model theory Data mining Principal component analysis K-means clustering Cloud-model-based energy consumption analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Removal of a pulmonary artery foreign body during pulse ablation in a patient with atrial fibrillation:A case report

引用

World Journal of Clinical Cases 2023年第27期11卷 6587-6591页

作者： Rui Yan xin-yu lei Jun Li Liang-Liang Jia Hai-Xiong Wang Department of Cardiology Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina The CT Room of the Imaging Department Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina

BACKGROUND Foreign bodies in the pulmonary circulation have been documented in the literature and are typically caused by interventional ***,reports of pulmonary artery foreign bodies during femoral vein puncture are rare,and there is no description of this complication from the guidewire surface flows into the pulmonary artery during a pulse ablation in a patient with atrial *** SUMMARY We described a case in which a linear foreign body suddenly appeared on fluoroscopy image during pulsed ablation of atrial *** angiography showed that the foreign body was currently lodged in the pulmonary artery but was hemodynamically *** then chose to use an interventional approach to remove the foreign body from the pulmonary *** foreign body was subsequently confirmed to be from the hydrophilic coating of the guidewire *** may be related to the difficulties encountered during the puncture of the femoral *** is a rare and serious complication of femoral vein ***,we reported this case in order to avoid a similar *** Mismatches between interventional devices from different manufacturers used for femoral venipuncture may result in pulmonary artery foreign bodies.

关键词： Femoral vein puncture Atrial fibrillation Guide wire Complication Pulmonary artery foreign body Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Behavior of exciton in direct−indirect band gap Al_(x)Ga_(1−x)As crystal lattice quantum wells

引用

Journal of Semiconductors 2024年第3期45卷 64-70页

作者： Yong Sun Wei Zhang Shuang Han Ran An xin-Sheng Tang xin-lei yu Xiu-Juan Miao xin-Jun Ma Xianglian Pei-Fang Li Cui-Lan Zhao Zhao-Hua Ding Jing-Lin Xiao Institute of Condensed Matter Physics Inner Mongolia Minzu UniversityTongliao 028043China College of Physics and Electronic Information Inner Mongolia Minzu UniversityTongliao 028043China

Excitons have significant impacts on the properties of *** exhibit significantly different properties when a direct semiconductor turns in to an indirect one by *** variational method is also found to influence the study of exciton ground state energy and ground state binding energy in Al_(x)Ga_(1−x)As semiconductor spherical quantum *** Al_(x)Ga_(1−x)As is considered to be a direct semiconductor at AI concentration below 0.45,and an indirect one at the concentration above *** regards to the former,the ground state binding energy increases and decreases with AI concentration and eigenfrequency,respectively;however,while the ground state energy increases with AI concentration,it is marginally influenced by *** the other hand,considering the latter,while the ground state binding energy increases with AI concentration,it decreases with eigenfrequency;nevertheless,the ground state energy increases both with AI concentration and ***,for the better practical performance of the semiconductors,the properties of the excitons are suggested to vary by adjusting AI concentration and eigenfrequency.

关键词： exciton effects aluminum gallium arsenide crystal direct band gap semiconductor indirect band gap semiconductor

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

产业链视角下的西部民族地区旅游业发展研究

引用

贵州民族研究 2017年第6期38卷 189-193页

作者：雷新玉四川大学经济学院四川成都610064

从产业链角度分析入手,着眼西部民族地区文化旅游业现状,通过研究吃、住、行、游、购、娱等各个领域,发现西部民族地区文化旅游业的诸多问题,如国际化程度不高、并不具备较多文化精品、没能精准把握文化内涵、仍需优化产业规划以及仍需... 详细信息

从产业链角度分析入手,着眼西部民族地区文化旅游业现状,通过研究吃、住、行、游、购、娱等各个领域,发现西部民族地区文化旅游业的诸多问题,如国际化程度不高、并不具备较多文化精品、没能精准把握文化内涵、仍需优化产业规划以及仍需提高知名度等。在这样的发展条件下,西部民族地区相关政府部门应该进一步强化文化旅游产业的规划和引导,以购物和娱乐两个薄弱环节的加强来带动整个地区文化旅游产业的转型升级;有计划地培育领头羊,为了保证西部民族地区旅游业能够维持健康稳定的发展状态,应着力将产业价值链的微笑曲线切实构建起来,为地区经济发展营造新的增长点。

关键词：西部民族地区文化旅游业产业链

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

Targeting TrkB–PSD-95 coupling to mitigate neurological disorders

引用

Neural Regeneration Research 2025年第3期20卷 715-724页

作者： xin Yang yu-Wen Alvin Huang John Marshall Department of Molecular Biology Cell Biology and BiochemistryBrown UniversityProvidenceRIUSA Department of Neurology Warren Alpert Medical School of Brown UniversityProvidenceRIUSA Center for Translational Neuroscience Robert J.and Nancy D.Carney Institute for Brain Science and Brown Institute for Translational ScienceBrown UniversityProvidenceRIUSA

Tropomyosin receptor kinase B(TrkB)signaling plays a pivotal role in dendritic growth and dendritic spine formation to promote learning and *** activity-dependent release of brain-derived neurotrophic factor at synapses binds to pre-or postsynaptic TrkB resulting in the strengthening of synapses,reflected by long-term ***,the association of postsynaptic density protein-95 with TrkB enhances phospholipase Cγ-Ca^(2+)/calmodulin-dependent protein kinaseⅡand phosphatidylinositol 3-kinase-mechanistic target of rapamycin signaling required for long-term *** this review,we discuss TrkB-postsynaptic density protein-95 coupling as a promising strategy to magnify brain-derived neurotrophic factor signaling towards the development of novel therapeutics for specific neurological disorders.A reduction of TrkB signaling has been observed in neurodegenerative disorders,such as Alzheimer's disease and Huntington's disease,and enhancement of postsynaptic density protein-95 association with TrkB signaling could mitigate the observed deficiency of neuronal connectivity in schizophrenia and *** with brain-derived neurotrophic factor is problematic,due to poor pharmacokinetics,low brain penetration,and side effects resulting from activation of the p75 neurotrophin receptor or the truncated TrkB.T1 *** TrkB agonists and antibodies that activate TrkB are being intensively investigated,they cannot distinguish the multiple human TrkB splicing isoforms or cell type-specific *** TrkB–postsynaptic density protein-95 coupling provides an alternative approach to specifically boost TrkB signaling at localized synaptic sites versus global stimulation that risks many adverse side effects.

关键词： Angelman syndrome autism brain-derived neurotrophic factor depression neurodegenerative disorder neurodevelopmental disorder postsynaptic density protein-95 synaptic plasticity TrkB

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

Fluorinated poly(p-triphenylene isatin) anion exchange membranes based on hydrophilic hydroxyl side chain modulation for fuel cells

引用

Journal of Energy Chemistry 2025年第1期100卷 702-709页

作者： Yiman Gu Yanchao Zhang Zhanyu Li Yijia lei Baozeng Sun Xiaoyu yu Zhe Wang College of Chemistry and Life Science Changchun University of Technology College of Chemical Engineering Changchun University of Technology School of Materials Science and Engineering Changchun University of Technology Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province

The development of alkaline fuel cells is moving forward at an accelerated pace,and the application of ether-free bonded polymers to anion exchange membranes （AEMs） has been widely ***,the question of the“trade-off”between AEM ionic conductivity and dimensional stability remains *** strategy of inducing microphase separation to improve the performance of AEM has attracted much attention recently,but the design of optimal molecular structures is still being ***,this work introduced different ratios of 3-bromo-1,1,1-trifluoroacetone （x=40,50,and 60） into the main chain of poly（p-terphenylene isatin）.Because fluorinated groups have excellent hydrophobicity,hydrophilic hydroxyl-containing side chains are introduced to jointly adjust the formation of phase separation *** results show that PTI-PTF50-NOH AEM with the appropriate fluorinated group ratio has the best ionic conductivity and alkali stability under the combined effect of *** has an ionic conductivity of 133.83 mS cm-1at 80°*** addition,the OH-conductivity remains at 89%of the initial value at 80°C and 3 M KOH for 1056 h of *** cell polarization curve based on PTI-PTF50-NOH shows a power density of 734.76 mW cm-2at a current density of 1807.7 mA cm-2.

关键词： Anion exchange membranes Poly(p-terphenylene isatin) Hydrophilic-hydrophobic phase separation Fluorinated group

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

油井水泥复合型自愈合剂的研制和评价

引用

科学技术与工程 2013年第28期21卷 8419-8423页

作者：李小可雷鑫宇陈大钧西南石油大学化学化工学院成都610500

为提高油井水泥自愈合剂的利用率,可以利用合适的壁材将自愈合剂包被起来,达到保护自愈合剂的功效。采用一种改性PVA作为包被剂,通过流化床制微胶囊法制成了一种油井水泥复合型自愈合剂XK—1。实验结果表明XK—1具有一定抗搅拌能力,能... 详细信息

为提高油井水泥自愈合剂的利用率,可以利用合适的壁材将自愈合剂包被起来,达到保护自愈合剂的功效。采用一种改性PVA作为包被剂,通过流化床制微胶囊法制成了一种油井水泥复合型自愈合剂XK—1。实验结果表明XK—1具有一定抗搅拌能力,能减少制浆过程中自愈合剂的损失,有效提高自愈合剂的利用率,增强自愈合效果。XK—1与CW—1水泥石微裂缝断面电镜扫描对比结果显示,XK—1水泥石断面产生了填充物质更多,能提供更长期的自愈合作用,自愈合效果明显提高。

关键词：自愈合剂利用率微胶囊电镜扫描

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

卡托普利、缬沙坦对兔动脉粥样硬化斑块的干预作用

引用

中华内科杂志 2005年第6期44卷 425-427页

作者：鹿育萨雷新宇邸捷黄淑田李建民山西医科大学第二医院心血管内科太原030001 山西省肿瘤医院病理科

目的观察高胆固醇饮食造成兔大动脉粥样斑块形成过程中卡托普利和缬沙坦对大动脉粥样斑块形成的干预作用。方法30只健康雄性新西兰兔随机分为高脂饮食组(A组),高脂饮食加卡托普利组(B组),高脂饮食加缬沙坦组(C组)和对照组(D组)喂养10周... 详细信息

目的观察高胆固醇饮食造成兔大动脉粥样斑块形成过程中卡托普利和缬沙坦对大动脉粥样斑块形成的干预作用。方法30只健康雄性新西兰兔随机分为高脂饮食组(A组),高脂饮食加卡托普利组(B组),高脂饮食加缬沙坦组(C组)和对照组(D组)喂养10周后,行超声检测腹主动脉内膜中膜的厚度。并行病理观察血管内膜以及血管内皮细胞情况。结果A组腹主动脉壁粥样斑块形成,血管内膜增厚;B组和C组血管壁有少量粥样斑块形成,血管内膜增厚均较A组明显减轻(P<0.01)。结论卡托普利和缬沙坦具有抗高胆固醇血症致动脉壁粥样斑块形成的确切效果。

关键词：卡托普利缬沙坦兔动脉粥样硬化斑块高脂饮食血管紧张素受体

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

卡托普利和缬沙坦对兔动脉粥样硬化腹主动脉超声表现的影响

引用

临床医药实践 2006年第10期15卷 741-744页

作者：雷新宇鹿育萨山西医科大学第二医院山西太原030001

目的:超声下观察高脂饲养兔腹主动脉动脉粥样硬化(A S)斑块形成及内膜-中膜厚度(IM T),并观察卡托普利和缬沙坦干预后腹主动脉超声变化。方法:雄性健康新西兰兔随机分为高脂饮食组(1%胆固醇+4%猪油的高脂饮食);卡托普利干预组(高脂饮食... 详细信息

目的:超声下观察高脂饲养兔腹主动脉动脉粥样硬化(A S)斑块形成及内膜-中膜厚度(IM T),并观察卡托普利和缬沙坦干预后腹主动脉超声变化。方法:雄性健康新西兰兔随机分为高脂饮食组(1%胆固醇+4%猪油的高脂饮食);卡托普利干预组(高脂饮食、卡托普利每天2 m g/kg);缬沙坦干预组(高脂饮食、缬沙坦每天10 m g/kg);正常对照组(标准兔饲料),共喂饲10周。期间于0、6、10周末对兔腹主动脉行超声检查,记录IM T值。10周末处死动物取主动脉组织作病理形态学观察。结果:6、10周时高脂饮食组、卡托普利干预组、缬沙坦干预组与正常对照组相比血脂(血清总胆固醇、甘油三酯及低密度脂蛋白)水平显著升高(P<0.01),卡托普利和缬沙坦干预组与高脂饮食组相比血脂水平下降无统计学意义;超声检查:10周时卡托普利干预组和缬沙坦干预组与高脂饮食组相比IM T值显著降低(P<0.001)。高脂饮食组10周与6周IM T值相比显著增厚(P=0.049),卡托普利干预组、缬沙坦干预组IM T值10周与6周相比差异无显著性(P=0.111和P=0.285);10周时超声腹主动脉IM T值与病理学内膜厚度呈正相关关系(r=0.756,P<0.01)。结论:血管紧张素转换酶抑制剂及血管紧张素受体拮抗剂抑制A S的形成和发展;二维超声检测IM T值可准确反映A S病变情况。

关键词：超声检查卡托普利缬沙坦内膜-中膜厚度动脉粥样硬化

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

Vector meson's spin alignments in high energy reactions

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang Liang yu-Gang Ma xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

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

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：