试论汉语的“数量范围”

基于汉语大量的语料事实,文章对汉语“数量范围”的内涵及表现形式进行了分析,认为,汉语“数量范围”除了有常见的表达式外,还具有多种标记词,这些标记词有的可以“对”用,有的可以“叠”用,标记词的“对”用使范围更加具体明确,而“叠”用则对范围起到了确认或强调作用。     

论地理标志农产品之保护

近年来,地理标志农产品已经逐渐成为农业领域的热门词汇,社会的认可度增高,通过审批的地理标志农产品的数量呈逐年稳步上升趋势,显然,它已经成为优质农产品的代名词,获得了消费者的广泛青睐。地理标志农产品的作用在于:不仅能够增加农产品品牌效应,提高市场地位,而且能够增值溢价。但是,地理标志农产品也存在着品牌商誉保护意识薄弱,缺乏质量跟踪管理与追溯体系,以及深加工技术含量偏低等问题。基于此,应提高地理标志农产品品牌保护意识,转变发展模式,注重龙头企业培养,加快人才队伍和技术服务体系建设。     

Estimation of Stratified Mark‐Specific Proportional Hazards Models with Missing Marks

Abstract. An objective of randomized placebo‐controlled preventive HIV vaccine efficacy trials is to assess the relationship between the vaccine effect to prevent infection and the genetic distance of the exposing HIV to the HIV strain represented in the vaccine construct. Motivated by this objective, recently a mark‐specific proportional hazards (PH) model with a continuum of competing risks has been studied, where the genetic distance of the transmitting strain is the continuous ‘mark’ defined and observable only in failures. A high percentage of genetic marks of interest may be missing for a variety of reasons, predominantly because rapid evolution of HIV sequences after transmission before a blood sample is drawn from which HIV sequences are measured. This research investigates the stratified mark‐specific PH model with missing marks where the baseline functions may vary with strata. We develop two consistent estimation approaches, the first based on the inverse probability weighted complete‐case (IPW) technique, and the second based on augmenting the IPW estimator by incorporating auxiliary information predictive of the mark. We investigate the asymptotic properties and finite‐sample performance of the two estimators, and show that the augmented IPW estimator, which satisfies a double robustness property, is more efficient.     

汉字六书指事构形法

指事造字是汉字的一种重要构形法。学界对指事字往往致力于它的“兼类”研究,论及指事字构形原理就显得歧见纷纭。我们经过对指事字进行系统观察整理,就指事字的构形机制及构形类型作出了客观分析。区别出指事字当中的指事符号存在指事记号跟指事代号之分,并对省形指事字进行了讨论研究。还明确提出了区别指事字跟象形字以及会意字的根本原则和具体方法。     

论依法治国的主要标志

20世纪 90年代中后期以来 ,经过不断地探索 ,依法治国作为党领导人民治理国家的基本方略最终得以确立 ,因此 ,对其主要标志的探讨具有重要的理论意义和现实意义     

河南省地理标志资源禀赋型产业集聚区发展的问题与对策

地理标志是区域经济发展的重要推力。河南省要建设中原经济区,打造郑州航空港区,必须重视地理标志以及地理标志禀赋型产业集聚区的发展。河南省地理标志产品的开发利用总体水平有待提高,存在着观念、公共服务、保障缺位等问题,应该从制定规划、加强基础设施和公共服务设施建设、打造品牌、形成可持续产业集聚等几个方面做好应对。     

基于阈值分割的数学形态学道路标识线检测

针对边缘检测算子对噪声敏感的缺点,提出了一种新的基于阈值分割的形态学道路标识线的检测方法.仿真结果表明,这种方法保留了更多的图像细节,具有更强的去除噪声能力,可以有效地从道路图像中检测道路标识线.     

中国建筑业节能政策措施研究：国际比较及启示

本文通过比较分析中国与美国、欧盟和日本三个发达国家(或地区)在建筑节能政策措施的主要差别,提出了国外建筑节能政策措施对中国的启示:经济刺激是现阶段各国提升住宅建筑能源效率的重要手段,中国在这方面还严重不足。要实现建筑节能目标,中国需要积极的政府干预和引导,应在调整能源价格、加大制定和贯彻执行建筑业节能标准和法规、建立有效财税措施、加强建筑节能宣传力度的等方面发挥积极作用。     

Bayesian analysis of mark‐recapture data with travel time‐dependent survival probabilities

The authors extend the classical Cormack‐Jolly‐Seber mark‐recapture model to account for both temporal and spatial movement through a series of markers (e.g., dams). Survival rates are modeled as a function of (possibly) unobserved travel times. Because of the complex nature of the likelihood, they use a Bayesian approach based on the complete data likelihood, and integrate the posterior through Markov chain Monte Carlo methods. They test the model through simulations and apply it also to actual salmon data arising from the Columbia river system. The methodology was developed for use by the Pacific Ocean Shelf Tracking (POST) project.     

Smooth Plug‐in Inverse Estimators in the Current Status Continuous Mark Model

Abstract. We consider the problem of estimating the joint distribution function of the event time and a continuous mark variable when the event time is subject to interval censoring case 1 and the continuous mark variable is only observed in case the event occurred before the time of inspection. The non‐parametric maximum likelihood estimator in this model is known to be inconsistent. We study two alternative smooth estimators, based on the explicit (inverse) expression of the distribution function of interest in terms of the density of the observable vector. We derive the pointwise asymptotic distribution of both estimators.