结合句法依存信息的方面级情感分类

引入句法依存信息到原方面术语,提出一种新的方面术语表示方法,利用Glove词向量表示单词以及单词与单词之间的依存关系,构造出包含句法依存信息的依存关系邻接矩阵和依存关系表示矩阵,利用图卷积神经网络和多头注意力机制将句法依存信息融入到方面术语中,使得方面术语表达与上下文结构高度相关。将改进后的方面词术语表示替换到现有模型后,模型泛化能力得到有效提升。对比试验和分析结果表明:该方法具有有效性和泛化性。     

Thickness dependent barrier performance of permeation barriers made from atomic layer deposited alumina for organic devices

Organic devices like organic light emitting diodes (OLEDs) or organic solar cells degrade fast when exposed to ambient air. Hence, thin-films acting as permeation barriers are needed for their protection. Atomic layer deposition (ALD) is known to be one of the best technologies to reach barriers with a low defect density at gentle process conditions. As well, ALD is reported to be one of the thinnest barrier layers, with a critical thickness – defining a continuous barrier film – as low as 5–10 nm for ALD processed Al₂O₃. In this work, we investigate the barrier performance of Al₂O₃ films processed by ALD at 80 °C with trimethylaluminum and ozone as precursors. The coverage of defects in such films is investigated on a 5 nm thick Al₂O₃ film, i.e. below the critical thickness, on calcium using atomic force microscopy (AFM). We find for this sub-critical thickness regime that all spots giving raise to water ingress on the 20 × 20 μm² scan range are positioned on nearly flat surface sites without the presence of particles or large substrate features. Hence below the critical thickness, ALD leaves open or at least weakly covered spots even on feature-free surface sites. The thickness dependent performance of these barrier films is investigated for thicknesses ranging from 15 to 100 nm, i.e. above the assumed critical film thickness of this system. To measure the barrier performance, electrical calcium corrosion tests are used in order to measure the water vapor transmission rate (WVTR), electrodeposition is used in order to decorate and count defects, and dark spot growth on OLEDs is used in order to confirm the results for real devices. For 15–25 nm barrier thickness, we observe an exponential decrease in defect density with barrier thickness which explains the likewise observed exponential decrease in WVTR and OLED degradation rate. Above 25 nm, a further increase in barrier thickness leads to a further exponential decrease in defect density, but an only sub-exponential decrease in WVTR and OLED degradation rate. In conclusion, the performance of the thin Al₂O₃ permeation barrier is dominated by its defect density. This defect density is reduced exponentially with increasing barrier thickness for alumina thicknesses of up to at least 25 nm.     

基于空间句法的历史城区叙事空间研究

如何将历史城区的物质环境与社会文化等人文要素相结合,营造“高语境”、“原真性”的历史空间环境,是历史城区保护必须面对的重要问题。基于叙事学视角,从叙事簇群、叙事廊道、叙事点核的单元结构出发,引入空间句法量化方法,对历史城区叙事空间的空间权力表征、功能表征、特质表征给予量化解释,并为历史城区活化保护提供建议。     

论保护规划中建设控制地带和控制措施的法律效力

历史文化名城保护规划等保护规划对建设控制地带和控制措施均做出了相应的规定,然而在实际执行过程中却因法律授权不明确、强制力不够等而得不到贯彻实施,因此,需明确建设控制地带和控制措施的法律地位,二者的强制力源自为公共利益而行使的征收权.     

关于三峡库区周边坡体岩石特性的考察

岩石强度的载荷速率相关性与岩石的时间相关性特性及粘弹性性质密切相关，而且强度的栽荷速率相关性越大，越容易发生蠕变破坏。对于坡体来说，如果构成坡体的岩石的时间相关性很显著．那么即使在比较低的应力下仅施加一点载荷，也容易发生变形。针对三峡库区周边滑坡多发，采集了组成滑坡坡体的4类主要岩石-泥岩、灰岩、泥质砂岩及砂岩。通过室内岩石力学强度试验，获得了不同岩石的强度特性曲线及表示载荷速率相关性的参数n。利用一个试件通过载荷速率交替变换获得了不同应变速率下的应力-应变曲线，从而根据强度的变化率不仅获得了峰值强度的载荷速率相关性，而且还求得了残余强度的载荷速率相关性。在单轴压缩试验中，残余强度的n值与峰值强度的n值有较大的差异，但在三轴压缩试验中两者的差异却不太明显。而且在气干状态下，不管是峰值强度还是残余强度的n值均随着围压的增加而增加。     

建筑语言演进的动力与规律——建筑创新的认识论基础

从建筑语言的系统性与矛盾性,去分析研究建筑语言演进的动力及其内在规律,并随之指出我们在建筑创作中所应确立和坚守的探索方向。     

信息认知逻辑及理论

本文主要探讨信息论跨学科发展的基本问题、理论和方法。通过分析Shannon测度,得出:‘划分’是获取信息的依据和根本方法。利用连续划分由离散信源熵推导连续信源熵。可消除logΔ→∞的矛盾。通过讨论模糊划分,得到划分的信息客观度和信息散失度;定量解决了正确选择‘划分’的问题。针对Shannon信源和划分的缺陷,本文提出了普适划分。从而可以认知信源输出的语法信息和语义识别信息;并且证明:Shannon信息是后者的近似。对先验知识不足的信源,用灰色信源描述。灰熵、灰信息作为熵和信息的估计;并用感知度δ_k定量描述了它们的接近程度,     

Path-dependency in public–private partnership in French urban renewal

Public–private partnership in urban renewal in France concerns mainly housing, transport infrastructure and large public facilities. The distinction between public, private and civil actors does not concern social and economic development. This situation tends to limit the integration of different issues and approaches in renewal projects. Also, French urban renewal projects do not produce a new type of partnership between public and private actors and the regulatory framework. These projects remain publicly dominated policy-making procedures because of the uneven distribution of resources and assets and despite a policy discourse emphasising the need for a new division of work between state, market and civil society. The current French situation cannot be understood without bearing in mind the history of urban planning policies in France. Using a historical analysis and the path-dependence approach, we highlight the resilience of inherited structures of interaction between public and private actors.     

砖砌体结构在小震下的失效相关性分析

本文运用可靠度理论,依据我国现行的砌体结构设计规范,建立起抗震和非抗震的砖砌体墙的试验模型。采用Monte-Carlo随机模拟法,在水平地震作用下对两类(抗震和非抗震)砖墙模型进行了分析。根据统计学原理,总结出小震下砖砌体墙的失效规律和失效相关性规律。以期为砌体结构的可靠性分析、抗震加固及震后维修等理论提供具有参考意义的分析依据。     

基于多特征量的D矩阵模型的建立与分析

针对基于单特征量的D矩阵模型会损失测试信号的大量信息的问题,提出了一种基于多特征量的可测性分析模型。首先,在研究D矩阵模型的基础上,对测试信号进行特征提取和多值编码,建立了基于多特征量的D矩阵模型。其次,基于信息熵制定诊断策略和生成故障诊断树,并对模型进行测试性分析,评估其诊断能力。结果表明,与单特征量的D矩阵模型相比,基于多特征量的D矩阵模型选用的测试点数和模糊组数小,故障隔离率高,诊断测试步骤数少,平均测试费用低。