l 简介 湿法脱硫可以有效控制SO_2的排放,但对烟道气中非水溶性NO_x的去除一直是个问题.本次试验采用在脱硫吸收系统的石灰浆中加入Fe(DMPS)_2即[Fe(HS-CH_2CH(SH)CH_2SO_3)_2]的缩写以达到同时去除NO_x和SO_2的目的.实验结果表明:NO的...l 简介 湿法脱硫可以有效控制SO_2的排放,但对烟道气中非水溶性NO_x的去除一直是个问题.本次试验采用在脱硫吸收系统的石灰浆中加入Fe(DMPS)_2即[Fe(HS-CH_2CH(SH)CH_2SO_3)_2]的缩写以达到同时去除NO_x和SO_2的目的.实验结果表明:NO的去除率主要取决于吸收器的条件,Fe(DMPS)_2的浓度,从水洗液贮存箱中分离出来用以Fe(DAPS)_2再生的水洗液比例以及再生反应的条件.展开更多
Mercapto organic compound DMPS was used as the depressant for separation of copper activated marmatite from pyrrhotite in the presence of butyl xanthate. The flotation tests of single mineral show that DMPS has strong...Mercapto organic compound DMPS was used as the depressant for separation of copper activated marmatite from pyrrhotite in the presence of butyl xanthate. The flotation tests of single mineral show that DMPS has strong depressing effect on pyrrhotite in the absence and presence of copper ion, but has activated effect on marmatite in the presence of copper ion. The floatability of marmatite is improved in the pH range of 2?12. The flotation test of mixture mineral shows that copper-activated marmatite can be separated efficiently from pyrrhotite using DMPS as depressant. Infrared adsorption spectra demonstrate that there are a number of function groups such as —SH and —SO3 in the molecular structure of DMPS. Xanthate and DMPS compete in their adsorption on sulfide minerals.展开更多
DMP(domain of unknown function 679 membrane protein)基因家族在调控植物生长发育中起着重要作用,特别是在生殖发育和衰老等方面。西瓜营养成分丰富、味道鲜美,是我国重要的经济作物之一,在蔬菜生产和消费中具有重要地位。采用生物...DMP(domain of unknown function 679 membrane protein)基因家族在调控植物生长发育中起着重要作用,特别是在生殖发育和衰老等方面。西瓜营养成分丰富、味道鲜美,是我国重要的经济作物之一,在蔬菜生产和消费中具有重要地位。采用生物信息学技术系统挖掘了西瓜DMP基因家族成员,并对其理化特征、系统进化、染色体定位、保守基序等进行了研究。同时,利用转录组数据明确了DMP家族成员在果实不同发育时期及干旱胁迫处理下的表达模式。利用西瓜基因组数据共鉴定到6个ClaDMPs基因,命名为ClaDMP1-ClaDMP6,分布在1、2、5、6共4条染色体上。系统进化分析将西瓜DMP蛋白分为4个亚族,第Ⅲ亚族中的ClaDMP6与拟南芥单倍体诱导基因亲缘关系最高,位于同一进化分支,推测其为西瓜单倍体诱导的候选基因。表达水平分析表明,部分ClaDMPs基因在果实中呈现高表达,干旱胁迫可以诱导或下调DMP基因的表达。本研究为揭示西瓜DMP基因生物学功能奠定了一定基础,并为西瓜单倍体育种提供了靶标基因。展开更多
基金Project(50234010) supported by the National Natural Science Foundation of China
文摘Mercapto organic compound DMPS was used as the depressant for separation of copper activated marmatite from pyrrhotite in the presence of butyl xanthate. The flotation tests of single mineral show that DMPS has strong depressing effect on pyrrhotite in the absence and presence of copper ion, but has activated effect on marmatite in the presence of copper ion. The floatability of marmatite is improved in the pH range of 2?12. The flotation test of mixture mineral shows that copper-activated marmatite can be separated efficiently from pyrrhotite using DMPS as depressant. Infrared adsorption spectra demonstrate that there are a number of function groups such as —SH and —SO3 in the molecular structure of DMPS. Xanthate and DMPS compete in their adsorption on sulfide minerals.
文摘DMP(domain of unknown function 679 membrane protein)基因家族在调控植物生长发育中起着重要作用,特别是在生殖发育和衰老等方面。西瓜营养成分丰富、味道鲜美,是我国重要的经济作物之一,在蔬菜生产和消费中具有重要地位。采用生物信息学技术系统挖掘了西瓜DMP基因家族成员,并对其理化特征、系统进化、染色体定位、保守基序等进行了研究。同时,利用转录组数据明确了DMP家族成员在果实不同发育时期及干旱胁迫处理下的表达模式。利用西瓜基因组数据共鉴定到6个ClaDMPs基因,命名为ClaDMP1-ClaDMP6,分布在1、2、5、6共4条染色体上。系统进化分析将西瓜DMP蛋白分为4个亚族,第Ⅲ亚族中的ClaDMP6与拟南芥单倍体诱导基因亲缘关系最高,位于同一进化分支,推测其为西瓜单倍体诱导的候选基因。表达水平分析表明,部分ClaDMPs基因在果实中呈现高表达,干旱胁迫可以诱导或下调DMP基因的表达。本研究为揭示西瓜DMP基因生物学功能奠定了一定基础,并为西瓜单倍体育种提供了靶标基因。
