数字经济驱动智能制造发展的路径研究——以珠三角为例

随着数字经济的深入发展,数字经济已经成为了推动经济增长的重要抓手,数字经济与制造业融合成为了珠江三角洲城市群的传统制造业转型升级的必经之路。从珠三角数字经济和智能制造发展现状出发,整合珠三角各个城市的数据进行分析。结果表明,珠三角数字经济正处于初步发展阶段,且制造业面临着低端锁定、缺乏高技术人才、资源利用效率低下等问题,阻碍了制造业智能化转型升级。基于此,从加快产业融合、延长价值链、提高自主创新能力、发展绿色制造业四个角度出发,构建数字经济推动珠三角智能制造的路径,为珠三角制造业的智能化发展方向提供理论参考。     

深秋草塘钓鲫鱼

<正>深秋时节,随着气温快速下降,树木的落叶纷纷飘落,地面上百草凋零,草塘中的荷叶、浮萍、水葫芦、绿藻、菱角等水生植物也开始枯萎。这时节鲫鱼需要进一步储备能量以度过寒冷的冬天,而以水生植物、植物种子、昆虫为食的其他鱼种,也因饵料减少而变得饥不择食。这样理想的鱼情外加不太低的气温,正是草塘钓鲫鱼的好时候。     

精准扶贫令农家日子“牛”起来——科技支撑富宁木令村走出肉牛养殖脱贫路

云南省科技厅挂钩帮扶文山州富宁县木央镇木令村委会,因地制宜制定实施肉牛养殖脱贫创业,采取"合作社+农户+贫困户联合养殖"及自养能繁母牛的发展模式,实现了贫困户脱贫摘帽及可持续发展。     

Aquatic toxicity of di （2-eihylhexyl） phthalate to duckweeds

This study is concerned with the effects of di （2-ethylhexyl） phthalate （DEHP） on two kinds of duckweeds （Spirodela polyrhiza and Lemna minor）.The results indicate that DEHP has aquatic toxicity to Spirodela polyrhiza at 0.4 mg/L and to Lemna minor at over 0.1 mg/L by changing their physiologic-biochemical characteristics.The contents of duckweed chlorophyll and soluble protein decrease with increasing DEHP concentration after 7 d of exposure.DEHP shows the stimulating role in catalase （CAT） and superoxide dismutase （SOD） systems at relative low levels.At 0.01 mg/L and 0.005 mg/L,SOD activities of Spirodela polyrhiza and Lemna minor reach their peak values respectively,while CAT activity reaches its maximum value at 0.05 mg/L and 0.01 mg/L.When DEHP levels are too high,the protection enzyme system would be destroyed and plant growth is inhibited.The analysis of malondialdehyde （MDA） and Fourier transform infrared spectroscopy manifest that DEHP could affect the tested duckweeds by destroying its cell membranes,and Spirodela polyrhiza is more resistant to DEHP exposure than Lemna minor.     

Degradation characteristic of 4-bromdiphenyl ether in mixed solutions by electron beam irradiation

The degradation characteristic of 4-bromdiphenyl ether （BDE-4） was investigated in different solutions.The study indicates that the process of direct degradation of this compound is dependent upon the bromine and the ether bond connected to diphenyl by electron beam.laser flash photolysis was employed to determine the degradation of each species （cationic,neutral,and anionic）.From these data,intermediate products of BDE-4 degradation were shown for direct irradiationdegradation.The neutral radical was formed during the photolysis of these compounds.For all the compounds,diphenyl ether and hydroxybiphenyl were observed as common products.Reaction of the BDE-4 under electron beam was debromide.The debromide rate of BDE-4 at pH=5.5 is somewhat lower than that of BDE-4 at pH=10.0.The decomposition rate for BDE-4 is 99.8% at pH=10.0 on the dose of 14 kGy.BDE-4 from its radical could provide bromine ion into water and the cation radical of BDE-4 formed quickly recombine with hydrogen radical and formed phenyl ether.     

个人经验的口头和书面叙事策略研究

60名土耳其大学的学生的恐怖叙事被分析;30份个人口头叙述被收集。另外30份叙述在一项书写任务中被引出。这项研究旨在于发现土耳其大学生个人经验叙事在口语和书面语叙事中运用叙事结构和评价性语言方面的不同。     

构建“双证融通”的“2211”人才培养模式培养IT高技能人才

按照以就业为导向、以能力为本位、工学结合的高职人才培养要求,实施双证书制度势在必行。按“2211”模式安排教学,使学历教育与职业资格培训充分融合,可提高就业质量和就业率。     

加强车辆工程专业团队教学能力的实践与探索

本文从开展基层教师的专业实践活动、举办定期的教学研讨活动以及强化专业教研室的教学管理能力三方面出发,对于加强专业教研室教学能力建设,培养高素质教学团队做了一些探索性的工作。     

爸爸你快点骑

8岁的那个寒假,爸爸带我去30里外的亲戚家吃酒席。他要回来时,随口问了一句:"你回不回去?"当时不知怎么阴差阳错答应了。临走的时候,爸爸说:"很冷呢,你怕不怕?还是别去了吧?"我一听"怕"字,赶忙响亮地回答:"不怕,保证,爸