商务智能在我国的发展现状、问题及其对策

商务智能(BI)的特点是使人们能从庞大而又繁杂的业务数据中提炼出有规律的商业信息,为商业决策提供依据。本文以BI技术为研究视角,分析其适合发展的行业、BI在国内的市场规模、国内外BI厂商,以及BI在我国的发展机遇与存在的问题,并针对现状、问题提出对策。     

节约型社会下的企业营销策略研究

目前,我国已经进入建设资源节约型、环境友好型社会时期。节约型社会的建设标志着企业的发展环境有了新的改变,对企业的营销策略提出了新的要求。因此,企业的营销策略应在观念、产品、渠道等方面有所改变以适应新的环境,形成企业新的竞争力。     

公司风险投资——培育企业核心竞争力的新途径

随着市场更新周期的不断加快,传统的新产品开发与多元化战略已不能适应外部环境的变化,动态地保持企业的学习和创新能力就成为企业核心竞争力的关键,而公司风险投资也就成为了全球企业巨头保持竞争力的重要手段。     

The global significance of biodiversity science in China: an overview

Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau. We review research, including species catalogues; biodiversity monitoring; the origins, distributions, maintenance and threats to biodiversity; biodiversity-related ecosystem function and services; and species and ecosystems’ responses to global change. Next, we identify priority topics and offer suggestions and priorities for future biodiversity research in China. These priorities include (i) the ecology and biogeography of the Qinghai-Tibetan Plateau and surrounding mountains, and that of subtropical and tropical forests across China; (ii) marine and inland aquatic biodiversity; and (iii) effective conservation and management to identify and maintain synergies between biodiversity and socio-economic development to fulfil China''s vision for becoming an ecological civilization. In addition, we propose three future strategies: (i) translate advanced biodiversity science into practice for biodiversity conservation; (ii) strengthen capacity building and application of advanced technologies, including high-throughput sequencing, genomics and remote sensing; and (iii) strengthen and expand international collaborations. Based on the recent rapid progress of biodiversity research, China is well positioned to become a global leader in biodiversity research in the near future.     

活用陶行知教育思想,让英语课堂更高效

在不断探索和实践新课改的理念中,提高英语课堂教学的有效性主要通过以下几个途径:认真备课作基础、激情导入开好头、合作学习同进步、师生融洽效率高、激活思维巧提问、及时表扬多激励。     

如何在声乐教学中培养学生的学习兴趣

声乐是一门综合艺术,学习者要有坚忍不拔的毅力,持之以恒的精神才能获得美妙的声音。所以激发学生的学习兴趣就成为非常重要的环节,生动的语言、明确的学习目标、良好的师生情感、良好的歌唱心理素质、丰富细腻的情感体验都是提高学习兴趣的有效途径。     

Precision measurement of the Newtonian gravitational constant

The Newtonian gravitational constant G, which is one of the most important fundamental physical constants in nature, plays a significant role in the fields of theoretical physics, geophysics, astrophysics and astronomy. Although G was the first physical constant to be introduced in the history of science, it is considered to be one of the most difficult to measure accurately so far. Over the past two decades, eleven precision measurements of the gravitational constant have been performed, and the latest recommended value for G published by the Committee on Data for Science and Technology (CODATA) is (6.674 08 ± 0.000 31) × 10⁻¹¹ m³ kg⁻¹ s⁻² with a relative uncertainty of 47 parts per million. This uncertainty is the smallest compared with previous CODATA recommended values of G; however, it remains a relatively large uncertainty among other fundamental physical constants. In this paper we briefly review the history of the G measurement, and introduce eleven values of G adopted in CODATA 2014 after 2000 and our latest two values published in 2018 using two independent methods.     

新产品销售收入回归曲线与产品生命周期曲线关系模型——以河南省大中型工业企业为例

本文,我们对河南省1999-2010年大中型企业新产品销售收入进行回归分析,结果表明,统计数据与三次曲线拟合非常好,描述出河南省新产品销售收入每年增长速度由小到大的变化规律。我们还根据统计年限的规定,探讨了一种简化的数学模型,将产品生命周期曲线一部分包含在三次曲线中。     

日汉语题述句陈述方式的一般对应规律——以除“は”提示句以外的题述句为研究对象

日语当中的题述句,指的是由主题部和叙述部构成的句子结构,含有这种结构的句子叫做题述句。汉语从语用学角度也提出了主述结构这一类似日语题述句的句子类型。除了"は"提示句以外,还有很多其他的提示方式构成题述句,本文从陈述方式角度出发主要对比研究日汉题述句的当中除"は"提示句以外的题述句的句子构造。     

积木模式——基于任务驱动的教育技术培训方法探微

本文在教师教育技术培训实践的基础上提出一种教育技术培训的方法——积木模式,阐述“积木模式”理论与实践的可行性、模式的模块构成与流程,以及任务驱动、动态组合、针对性强的特点等。