亨斯迈携五大创新产品高调亮相2019中国国际染料工业及有机原料、纺织化学品展览会

<正>4月10—12日,2019中国国际染料工业及有机原料、纺织化学品展览会在上海世博展览馆举行。一家致力于提供创新技术和可持续发展的染料、化学助剂及印花墨水的全球领先者——亨斯迈纺织染化事业部展出了染料、化学助剂、印花墨水等方面的领先技术和创新产品,其技术和产品适用于各种纤维及其混纺织物。亨斯迈纺织染化事业部总裁Rohit Aggarwal先生表示:我们     

佐敦工业保护涂料入驻摩贝品牌馆开启电商新渠道

<正>最近,佐敦工业保护涂料与全球领先的化学品电商综合服务平台——摩贝(MOLBASE.CN)达成合作协议,佐敦工业保护涂料摩贝官方旗舰店正式开业,并率先上线了专为零售行业客户量身打造的Easy Pro系列产品。此次合作,是双方通过数字化手段推动渠道多元化发展的积极尝试,以创新的服务模式为行业客户提供更便捷、更高效的采购流程以及焕然一新的采     

Correction to: Herd concentration areas create greenhouse gas hotspots

Nutrient Cycling in Agroecosystems -     

An esterification protocol for cis-parinaric acid-determined lipid peroxidation in immune cells1,2

Loss of fluorescence from cis-parinaric acid (cPnA) is a sensitive indicator of lipid peroxidation. The purpose of this study was to utilize cPnA to determine, at the level of the intact immune cell, whether enrichment of membranes with polyunsaturated fatty acids (PUFA) increased lipid peroxidation. P388D1 macrophages were labeled by addition of cPnA as an ethanolic solution. Within two minutes of addition, in the absence of serum, cPnA rapidly intercalated into the plasma membrane. Lipid peroxidation was initiated by addition of Fe²⁺-EDTA resulting in a dose-dependent decrease in fluorescence with increased oxidant concentration. Cells previously enriched with PUFA and labeled by intercalation showed no differences in spontaneous or Fe²⁺-induced lipid peroxidation. In separate experiments, 20 μM cPnA in ethanolic solution was injected into cell culture media containing 0.1% essentially fatty acid free bovine serum albumin (BSA). Cells were resuspended and incubated for 90 min at 37°C. After washing with BSA to remove cPnA which had not incorporated, 0.5% (0.1 μM) of the added cPnA was found esterified within cellular lipids. This level of cPnA provided a 100-fold increase over basal autofluorescence levels. Cells labeled in this manner also lost fluorescence in a dose-dependent manner as levels of oxidant stress increased. Cells enriched with PUFA and labeled by esterification had significantly increased rates and total amounts of lipid peroxidation. Co-incubation with α-tocopherol and PUFA resulted in a decrease in lipid peroxidation which was not significantly different from control cells. In conclusion, esterification of cPnA into membrane phospholipids can sensitively detect changes in lipid peroxidation induced by alteration of membrane PUFA and/or vitamin E content. Presented in part at the Experimental Biology Meetings, Anaheim, California, April 1994. Contribution from the Missouri Agriculture Extention Station, Journal #12,495.     

Gas and particle circulation in an internally circulating fluidized bed membrane reactor cold model

A cold model study was carried out of an internally circulating fluidized bed membrane reactor for hydrogen production by steam reforming. This configuration facilitates a novel process in which air is introduced for autothermal operation, while avoiding diluting the hydrogen in the gas stream by nitrogen. A column of diameter 230 mm and height 2.4 m contained a membrane box of square cross-section. Gas circulation was investigated by injecting helium tracer into the top of the bed above the membrane box and detecting its concentration in the annulus and lower membrane box by a thermal conductivity detector. Solids circulation was determined from the downward velocity of particles in the annulus. The major resistance to solids circulation was found to be at the passage connecting the outer downflow to the inner upflow compartment. A ring distributor helped overcome this resistance.     

Nutrition education for student community volunteers: a comparative study of two different communication methods

BACKGROUND: Nutrition education for student volunteers can enhance their skills, and they can act as change agents in the community. There is a dearth of data from India on the effectiveness of different communication tools in providing nutrition education to student volunteers. OBJECTIVE: This study aims to examine the comparative effectiveness of two different methods of communication--lectures in the classroom aided by print material, and a televised version of a local folk-dance form--for providing nutrition education to student community volunteers in a South Indian state. METHODS: Interventions were conducted during two mega-camps of student volunteers (camps 1 and 2) with 70 and 137 participants, respectively. Their knowledge levels were tested at baseline. Camp 1 received the lecture intervention and camp 2 the televised folk-dance intervention. Knowledge scores were measured before and after the intervention in each camp, and the two camps were compared for significant improvements in knowledge. RESULTS: At baseline, the knowledge levels of students in both camps were comparable. Significant improvement in knowledge was observed in both camps after intervention (p < .05). Although there was no significant difference between the camps in improvement in knowledge, a significant difference was observed when only the positive increments (improvement over baseline) were compared. CONCLUSIONS: The televised version of the folk-dance form was better in bringing about positive increment.     

快速煅烧分解石灰石对其吸收CO2和SO2的影响

在加热过程中,应用一种新型的快速加热装置——铂膜反应器,及时准确地获得样品质量和颗粒温度,来研究石灰石的煅烧分解,并对石灰石加热速率高达750℃/s下的分解反应特性,及其对分解后产生的氧化钙吸收CO2和脱硫的化学反应特性进行了研究.实验表明,在初始加热阶段,高升温速率明显阻碍了煅烧分解的进行,这对分解后的CaO吸收CO2的效果影响不大.当加热速率升高时,石灰石分解后产生的CaO吸收CO2和脱硫过程中,钙利用率显著下降.