A novel carbon price forecasting method based on model matching,adaptive decomposition,and reinforcement learning ensemble strategy

Environmental Science and Pollution Research - Carbon price is closely related to energy conservation and emission reduction cost, and carbon price forecasting is conducive to improving and...     

An empirical analysis on the impact of environmental regulations on pork trade:evidence from China

This paper uses the gravity model to examine the effect of environmental regulations on pork trade flows between different regions within China.We apply a linear programming tool to estimate pork trade flows from 2000 to 2008,and discuss the environmental acts on livestock pollution and income level to proxy environmental regulations.We use OLS regression and panel data with dummy variable in the cross-sectional GLS estimation.Our results indicate that the gap of environmental regulations between trade partners has a positive relationship with pork trade flows,and the difference in environmental regulations changes the traditional comparative advantage pattern to some extent.This paper provides convincing evidence for the pollution haven effect on livestock in China.     

Separation of polycarbonate and acrylonitrile–butadiene–styrene waste plastics by froth flotation combined with ammonia pretreatment

The objective of this research is flotation separation of polycarbonate (PC) and acrylonitrile–butadiene–styrene (ABS) waste plastics combined with ammonia pretreatment. The PC and ABS plastics show similar hydrophobicity, and ammonia treatment changes selectively floatability of PC plastic while ABS is insensitive to ammonia treatment. The contact angle measurement indicates the dropping of flotation recovery of PC is ascribed to a decline of contact angle. X-ray photoelectron spectroscopy demonstrates reactions occur on PC surface, which makes PC surface more hydrophilic. Separation of PC and ABS waste plastics was conducted based on the flotation behavior of single plastic. At different temperatures, PC and ABS mixtures were separated efficiently through froth flotation with ammonia pretreatment for different time (13 min at 23 °C, 18 min at 18 °C and 30 min at 23 °C). For both PC and ABS, the purity and recovery is more than 95.31% and 95.35%, respectively; the purity of PC and ABS is up to 99.72% and 99.23%, respectively. PC and ABS mixtures with different particle sizes were separated effectively, implying that ammonia treatment possesses superior applicability.     

职业安全专业软件的应用及其产业化发展

概略介绍了国内外各类安全应用软件,并对安全软件产业化进行了实例分析,总结了安全软件产业发展的特点,并对我国安全软件的产业化提出了若干建议。     

突发安全事故个体-群体安全行为决策探究

为了有效地提高群体安全行为,避免群死群伤事故的发生,通过对个体和群体行为特点及规律的分析,明确面对突发安全事故时个体行为决策对群体行为决策的影响,应用安全系统工程的基本理论和方法建立个体-群体行为决策结构函数,定性定量地分析突发安全事故个体与群体安全行为的关系,并确定群体安全行为的3种决策形式,为进一步研究群体安全行为提供了必要的理论依据.     

减量化技术在大型包装中的应用

文章介绍了减量化的定义,详细描述了轻量化技术,薄壁化技术,改变包装结构以及材料可替代性等减量化技术。最后通过实例验证,减量化技术在大型包装应用中切实可行。减量化后的包装减少了包装原材料的使用,直接节约了大量的成本,最终达到环保的目的。     

氯气氯化工艺过程自动控制方案研究

在对大量涉及氯气氯化工艺的化工企业实际调查研究的基础上,结合众多化工安全专家的实践经验,提出液氯钢瓶称重装置、液氯气化装置、氯气缓冲装置、氯化反应装置和事故氯气吸收处理装置安全控制方案.液氯钢瓶称重装置对液氯钢瓶进行称重并设自动报警.液氯气化装置采用盘管式气化器,在蒸汽输入端设自动调节阀门,热水侧设温度显示报警装置等进...     

基于PHA-LEC法金属矿山盲竖井工程安全分析研究

针对盲竖井工程的危险、有害因素的危害程度及特殊工艺,将盲竖井施工系统分为卷扬机硐室开凿、盲竖井掘进、爆破、吊桶提升、出碴、竖井提升装置安装、施工通风7个主要子系统,在对矿山的盲竖井施工事故数据充分调查和分析的基础上,运用预先危险性分析法(PHA)对盲竖井施工的危险、危害因素进行辨识和定性分析,结合生产作业条件安全评价方法(LEC)对盲竖井系统中各子系统进行危险性评价,定量分析计算PHA的危险等级,提出科学预防措施。PHA-LEC法为盲竖井施工安全分析提供了新的模式,为制定防范措施和管理决策提供科学依据,具有一定的实际指导意义。     

化工园区安全生产监管存在问题及对策

系统分析了我国现阶段化工园区的基本特点及其安全监管中存在的问题，提出了建立以政府为主导、社会中介机构技术支撑、企业落实一体化的化工园区综合管理体系。实现化：亡园区应急救援资源整合及资源共享，提高化工园区应急救援资源有效利用率。数字化管理对化工园区的整体安全性的提高将发挥巨大的作用。