排序方式： 共有104条查询结果，搜索用时 15 毫秒
61.
"左盲生",即汪士慎,"扬州八怪"之一。半生踏歌江城,清高狂傲;是清代一位在绘画、书法、诗文、篆刻等方面有着卓越成就的艺术家。其传世作品主要有《潇湘灵芳图》、《绿萼梅开图》、《洒香梅影图》、《月!风襟图》、《灵根出谷图》、《苍松偃蹇 相似文献
62.
社会部类收入内容应该在确保大的基础内容不缺失的情况下,给各志留有一个根据自身特点在细节上自由发挥、组合、取舍的空间,这样既保证了社会部类的完整性及整体分量不受影响,又照顾到各志地方特色的最大发挥。社会现象、社会问题应该成为第二轮志书社会部类记述的一个新领域。首轮志书的社会部类,由于概念界定上的原因导致先天不足,加之后天发育不良,在志书的各大部类中,通常扮演的是一个被忽视或弱化的角色。在全面总结首轮修志经验得失的今天,在大力倡导“以人为本”、四位一体推进社会主义“经济建设、政治建设、文化建设、社会建设”的大背景下,重新审视并提升社会部类在志书中的地位,不仅必要而且是迫切的。 相似文献
63.
Existing research on perceptions of tourism has mainly focused on the empirical study from the perspectives of management, sociology, statistics and other disciplines. However, the ethical or philosophical perspective has been relatively neglected. Many issues related to institutional ethics have not been given sufficient attention by tourism academics. This article will test the effect of tourism on institutional ethics from a new perspective: by comparing the residents’ perceptions and attitudes towards tourism's impact in the villages of Zili and Maxianglong in Kaiping County of Guangdong Province where they share similar geographical locations and demographic features. Findings show that due to different levels of tourism development, the residents’ pursuit of institutional ethics varies. In particular, citizen ethics cannot be derived from traditional Chinese ethics. In fact as the level of tourism increases, the awareness of being involved in public affairs becomes stronger and the pursuit of a fair distribution and a focus on public interest becomes more obvious. For example: (1) a more developed tourism industry results in a larger demand for equal distribution from residents; (2) as the tourism industry develops, resident awareness increases as well as the ability to participate in public management; (3) with the development, resident demands for democracy become more obvious; and (4) with the development of the tourism industry, residents pay more attention to public interests and the construction of public spaces, and they acquire more of a public spirit. 相似文献
64.
Vivian Yi‐Ju Chen Wen‐Shuenn Deng Tse‐Chuan Yang Stephen A. Matthews 《Geographical analysis》2012,44(2):134-150
In recent years, techniques have been developed to explore spatial nonstationarity and to model the entire distribution of a regressand. The former is mainly addressed by geographically weighted regression (GWR), and the latter by quantile regression (QR). However, little attention has been paid to combining these analytical techniques. The goal of this article is to fill this gap by introducing geographically weighted quantile regression (GWQR). This study briefly reviews GWR and QR, respectively, and then outlines their synergy and a new approach, GWQR. The estimations of GWQR parameters and their standard errors, the cross‐validation bandwidth selection criterion, and the nonstationarity test are discussed. We apply GWQR to U.S. county data as an example, with mortality as the dependent variable and five social determinants as explanatory covariates. Maps summarize analytic results at the 5, 25, 50, 75, and 95 percentiles. We found that the associations between mortality and determinants vary not only spatially, but also simultaneously across the distribution of mortality. These new findings provide insights into the mortality literature, and are relevant to public policy and health promotion. Our GWQR approach bridges two important statistical approaches, and facilitates spatial quantile‐based statistical analyses. En los últimos años se han desarrollado diversas técnicas para explorar tanto la heterocedasticidad (o no estacionariedad) espacial, así como para modelar toda la distribución de una variable dependiente. El primer tema ha sido abordado principalmente por la regresión ponderada geográficamente (Geographically Weighted Regression ‐GWR), y el segundo por la regresión por cuantiles (Quantile Regression‐QR). La combinación de ambas técnicas analíticas, sin embargo, ha recibido mucho menos atención. El objetivo de este artículo es llenar dicho vacío mediante la propuesta de una regresión geográficamente ponderada por cuantiles (Geographically Weighted Quantile Regression‐ GWQR). Los autores resumen brevemente las técnicas GWR y QR respectivamente, y luego esbozan sus propiedades sinérgicas. Luego presentan la nueva técnica propuesta: GWQR. Los autores abordan los temas de las estimaciones de los parámetros GWQR y sus errores estándar, el criterio de selección del ancho de banda de la validación cruzada (cross‐validation bandwidth), y la prueba heterocedasticidad espacial. Como ejemplo se aplica GWQR a datos de la tasa de mortalidad como variable dependiente y cinco determinantes sociales como variables independientes para los condados de los Estados Unidos. Los patrones espaciales se presentan en mapas con los resultados del análisis para los percentiles 5, 25, 50, 75, y 95. Los resultados muestran que las asociaciones entre la mortalidad y sus factores determinantes no sólo varían espacialmente, sino también de forma simultánea a través de la distribución de la tasa de mortalidad. Estos nuevos hallazgos coinciden con la literatura de los estudios de mortalidad, y son relevantes para aplicaciones de política pública y promoción de la salud. El enfoque GWQR representa un puente conceptual y metodológico entre dos enfoques estadísticos importantes a la vez que hace más factible el análisis estadístico espacial por cuantiles. 近年来,可用于探讨空间非平稳性和模拟回归变数分布的技术得到发展。前者主要用地理加权回归方法（GWR）处理,后者采用分位数回归（QR）处理。然而对这些分析技术的结合使用却很少关注。本文试图通过提出地理加权分位数回归（GWQR）来填补这一空白。在分别简要回顾了GWR和QR方法的基础上,基于两个方法的协同应用提出了GWQR新方法,进而讨论了GWQR的参数估计、标准误差、带宽选择标准的交叉验证和非平稳性检验。本文将死亡率作为因变量及五个社会因子作为解释变量,进行了美国县域单元的案例研究,绘制了0.05、0.25、0.5、0.75和0.95不同百分位点的分析结果图。研究发现,死亡人数不仅与解释变量的空间分布相关,同时也与其地理分布相关。这些新发现不仅可促进对死亡率相关成果的深入分析,同时也与公共政策和健康促进有关。GWQR方法架构了QR和GWR两种重要统计方法之间的纽带,也促进了基于分位数的空间统计分析方法的发展。 相似文献
65.
国民党六届二中全会研究 总被引：7，自引：0，他引：7
国民党六届二中全会是第二次国共合作由巅峰走向破裂的转折点。在此次会议上 ,国民党内部各派系就政协宪草原则和东北问题发生激烈争论 ,蒋介石亦表现出政治动摇。各种矛盾冲突最终形成巨大的政治破坏力 ,使蒋介石、国民党从政协会议全面倒退 ,由此构成国共两军四平决战的政治背景 相似文献
66.
古代香港树皮布文化发现及其意义浅释 总被引：4，自引：0，他引：4
环珠江口一带的大湾文化中发现的树皮布石拍是中国大陆目前所知唯一年代最早,可靠性最强的与树皮布技术相关的资料。环珠江口树皮布文化很可能是全球树皮布文化的源头。 相似文献
67.
李梦阳复古理论中的“格调”与“真情” 总被引：1，自引：0，他引：1
以李梦阳为首的“前七子”倡导复古,后世对于这种复古理论的评价并不统一,这种差异性来源于其理论内部“格调”与“真情”的对立,这两种不同的诗学主张,在李梦阳的复古理论中,形成了一种既对立又统一的复杂关系。因此,有必要对二者进行深入分析,以帮助我们正确理解和评价李梦阳的复古理论。 相似文献
68.
69.
名宦、宗族与地方权威的塑造--以山西寿阳祁氏为中心 总被引：2，自引：0，他引：2
本文以明清时期山西寿阳县的祁氏宗族为个案,考察了一个地方大族在基层社会如何运用各种社会资源,逐渐建立其权威的过程.当这种权威逐渐消失后,民众却依然保留着对祁氏权威的历史记忆,继续塑造这一地方权威和利用这一地方资源.通过对这一个案的分析,不仅可以丰富我们对明清时期华北宗族在传统中国基层社会中的生存状态的了解,还能加深我们对明清华北地区的宗族势力与名人资源、地方权威状态与乡村权力结构等问题的认识. 相似文献
70.
This paper presents a new method for pore level network simulation of the distribution of two immiscible phases in a permeable medium. The method requires that the Helmholtz free energy of the system — the medium and the two phases contained within the pore space — be a minimum at all saturation states. We describe the method here and show some typical results from a computer algorithm that implements it. The results include (i) an explanation of the ‘scanning’ behaviour of capillary pressure curves based wholly on the free energy minimization, (ii) predictions of capillary pressure at arbitrary wetting states, including negative capillary pressures, and (iii) illustrations of how the minimized free energy changes along the scanning curves. The method also predicts the known dependency of the capillary pressure on the pore size distribution and interfacial tension. The current work is restricted to two‐dimensional networks, but the free energy minimization appears to be generalizable to three dimensions and to more than two fluid phases. Moreover, functions generated through the minimization, specifically contact areas between the medium surface and the phases, appear to have applications predicting other multiphase petrophysical properties. 相似文献