浅谈渝东南铝土矿床成因与古地理环境的关系

重庆地区铝土矿资源丰富。目前已探明储量超过亿吨,主要分布在渝东南武隆——南川一带。主要赋矿层位为中二叠纪梁山组。而渝东南地区中二叠世早期,继承了中志留和晚泥盆、晚石炭期古地理格局,隶属上扬子古陆部份,古陆北靠南秦岭海槽;东为下扬子滨浅海;南西和南分别为华南海与东南滨浅海。通过对重庆地区已有铝土矿地质资料的分析,总结了该地区铝土矿产出的地质特征,成因与古地理环境的关系,初步建立铝土矿成矿模式。为今后铝土矿的找矿工作提供了重要依据。     

克钱:清代寿阳商人的财务创新

本文依据史料,评介了寿阳宗艾商人从客钱到克钱的演变,分析了克钱制度的经济意义和历史作用,认为寿阳克钱是寿阳商人的财务创新,它有力地促进了寿阳及其周围地区自然经济向商品化、货币化、市场化发展的进程,是晋商财务创新的一个缩影。     

克钱:清代寿阳商人的财务创新

本文依据史料,评介了寿阳宗艾商人从"客钱"到"克钱"的演变,分析了克钱制度的经济意义和历史作用,认为寿阳克钱是寿阳商人的财务创新,它有力地促进了寿阳及其周围地区自然经济向商品化、货币化、市场化发展的进程,是晋商财务创新的一个缩影.     

贵州遵义四轮碑铝土矿地质特征及找矿方向

研究区铝土矿产于石炭系下统九架炉组地层中,处于黔中——渝南石炭纪铝土矿成矿带中部的遵义铝土矿带内,属于沉积型铝土矿床,矿体产出特征受下伏基底侵蚀面的控制,与岩溶地形地貌关系密切,造成矿层厚度及质量变化较大,其中地质历史时期的沉积间断对铝土矿的形成有重要作用。通过对其成矿地质背景、矿床地质特征、矿石结构构造、矿床成因及形成机制的分析,总结了四轮杯铝土矿的控矿因素及其找矿标志,并指出该区具有较大的找矿潜力的区块。     

贵州省清镇市麦格马龙井铝土矿矿床地质特征浅析

第四系堆积型铝土矿,含矿岩系主要分布于寒武系中、上统娄山关群(∈2—3ls),灰、微红色中厚层状细晶白云岩为基底的岩溶洼地、坡地及岩溶谷地的第四系红土层中。铝土矿含矿岩系厚度受基底古侵蚀面形态的影响,一般凹下地段厚度大,凸起地段厚度变小甚至尖灭。     

浅谈渝东南铝土矿成因及找矿勘查

渝东南南川—武隆铝土矿成矿区位于黔北铝土矿区之北延部分,是近年来发现的重要铝土矿成矿区,分布于渝东南陷褶束中的一系列穹褶束、凹褶束之中,矿床类型属古风化壳沉积改造型。铝土矿赋存于上古生界二叠系中统梁山组,控矿构造为近平行展布的北北东向向斜褶皱。矿体多呈层状、似层状于向斜两翼及转折端顺层产出。矿石主要矿物成分为硬水铝石,软水铝石、胶铝石次之。主要找矿标志是向斜构造的两翼及转折端,上覆地层为栖霞组厚层含沥青质灰岩,常形成陡崖;下伏地层为志留系韩家店组黄灰、灰绿、偶夹紫色的粉砂质页岩,常形成陡坡。梁山组中上部产出铝土岩、铝土矿。     

朝阳镇里的朝阳站

朝阳镇位于山西寿阳中部。在这个小镇南端，太旧高速寿阳出口处，有一座头顶朝阳商标的加油站，它以贴心完善的服务、质优量足的油品、勇于担当的责任赢得了当地群众和南来北往客户的信赖，这就是中国石化山西寿阳城南加油站。     

国家审计服务“一带一路”战略的理论分析与实现路径

中国“一带一路”战略作为国家级战略,是中国国家良治的重大举措,也是沿线各国协同发展的跨国性平台。作为服务于国家战略的沿线各国国家审计协同治理,对于“一带一路”国家战略落地和沿线国家良治至关重要。文章依据战略管理和国家审计治理理论,构建了基于“三大共同体”理念下的“一带一路”国家战略审计协同治理的“战略—风险—审计”（SRA）分析模型。以战略过程和战略“五通”为主线,分析认为“一带一路”战略的制定、执行和评价存在风险,需要得到国家审计协同治理做保障,沿线国家通过审计协同更好地服务于“一带一路”战略。中国国家审计署应在“一带一路”战略审计协同中发挥主导角色,协调整合国内、国际审计资源,对“一带一路”战略的实现具有重大意义。     

铝土矿资源特征及其选矿脱硅技术分析

基于目前铝土矿资源开发建设应用选矿脱硅技术过程中存在的问题影响,文章分析了铝土矿选矿脱硅技术的应用现状与铝土矿资源分布特征,并提出了优化选矿脱硅技术的应用策略。     

220kV阳北双回线复冰区探讨

一、线路概况 220kV阳东I、II回线,1997年投运,始于阳泉二电厂,止于220kV东观变电站。沿线经平定、寿阳、榆次、太谷、清徐、祁县五县一市。 1．220kV阳东I回线．线路全长122．436千米,沿线经平定、寿阳、榆次、太谷、清徐、祁县五县一市。全线共有铁塔298基．直线铁塔260基,耐张铁塔38基。     

Incumplimiento del salario mínimo en Europa central y oriental

En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.     

Input/output ranges and performance: an examination of US machine tool producers

Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.     

Sixty years of discrimination and diversity research in human resource management: A review with suggestions for future research directions

This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.     

The Early History of the Cumulants and the Gram-Charlier Series

The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.     

Capturing the Implications of Services Trade Liberalization

This paper evaluates the impact of service sector trade liberalization on the world economy by a ten-region, eleven-sector CGE model with import embodied technology transfer from developed countries to developing countries. Simulation results show that service sector trade liberalization not only directly affects world service production and trade, but also has significant implications for other sectors in the economy. The major channel of the impact is through inter-industry input-output relations and TFP growth induced from services imported by developing countries from developed countries, which may be embodied with new information and advanced technology.     

City Children and Genderfied Neighbourhoods: The New Generation as Urban Regeneration Strategy

Former industrial cities in the West are employing gentrification as urban policy. In these policies, women and families currently play an important role as gentrification pioneers. In my analysis of Rotterdam in the Netherlands, I propose the term genderfication to understand the gender dimensions of this process. Genderfication refers to the production of space for different gender relations. I analyse Rotterdam's urban planning program for becoming a ‘child‐friendly city’, which entails replacing existing urban dwellings with new, larger and more expensive ‘family‐friendly homes’ as a strategy for urban re‐generation. Urban re‐generation supplements regeneration in the form of material and economic restructuring, and refers to the replacement of part of the current population by a new and better suited generation. The ‘child‐friendly city program’ is considered in tandem with punitive ‘youth policies’.     

Hierarchical Models in Environmental Science

Environmental systems are complicated. They include very intricate spatio-temporal processes, interacting on a wide variety of scales. There is increasingly vast amounts of data for such processes from geographical information systems, remote sensing platforms, monitoring networks, and computer models. In addition, often there is a great variety of scientific knowledge available for such systems, from partial differential equations based on first principles to panel surveys. It is argued that it is not generally adequate to consider such processes from a joint perspective. Instead, the processes often must be considered as a coherently linked system of conditional models. This paper provides a brief overview of hierarchical approaches applied to environmental processes. The key elements of such models can be considered in three general stages, the data stage, process stage, and parameter stage. In each stage, complicated dependence structure is mitigated by conditioning. For example, the data stage can incorporate measurement errors as well as multiple datasets with varying supports. The process and parameter stages can allow spatial and spatio-temporal processes as well as the direct inclusion of scientific knowledge. The paper concludes with a discussion of some outstanding problems in hierarchical modelling of environmental systems, including the need for new collaboration approaches.