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Novel synthetic approaches and TWC catalytic performance of flower-like Pt/CeO
Zongcheng ZHAN,Xiaojun LIU,Dongzhu MA,Liyun SONG,Jinzhou LI,Hong HE,Hongxing DAI
《环境科学与工程前沿(英文)》 2014年 第8卷 第4期 页码 483-495 doi: 10.1007/s11783-013-0595-z
关键词: three-way catalyst flower-like Ultrasonic Assisted Membrane Reduction (UAMR) Pt nanoparticles
赵宪文
《中国工程科学》 2000年 第2卷 第5期 页码 66-71
从森林火灾成灾的三个基本因子(火源、环境和可燃物)入手,在宏观上对西南地区森林火灾预报方法进行了探讨。在预测林火发生方面,考虑到人为火是发生森林火灾的主要原因,有很大随机性,因而采用了马尔科夫随机过程理论。在分析成灾环境时,采用了与天、地、生相关分析的方法。特别在可燃物的贮量估测方面,用航天遥感数据,提出一套新的框算方法,为在区域的尺度上估测森林火灾给出了有效的、定量的方法,从而提高了可信度。
《能源前沿(英文)》 2022年 第16卷 第4期 页码 542-547 doi: 10.1007/s11708-022-0834-8
AGRICULTURAL GREEN DEVELOPMENT IN THE ERHAI LAKE BASIN—THE WAY FORWARD
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 510-517 doi: 10.15302/J-FASE-2023524
Pollution of high-altitude lake basins by agriculture and rural activities, and the control of this pollution, have received increasing attention from academic research and government policy in China. Series of restrictions and regulations have been implemented to protect the surface water quality. These restrictions and regulations have greatly impacted and transformed the agricultural systems and rural livelihoods surrounding these lake basins. Using Erhai Lake basin in Yunnan Province as a case study, three main challenges were identified for concurrently decreasing pollution in the lake and increasing farmer income. It is contended that scientifically-sound environmental protection policies and agricultural green development practices are key to reversing the current situation. This will help to protect the lake from pollution while smallholder farmers will be able to produce healthy food in an environmentally sustainable manner, and with a fair remuneration for all the services farmers provide to the society.
关键词: agriculture farmer income nitrogen phosphorus water pollution
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 387-399 doi: 10.15302/J-FASE-2021414
Modern agriculture needs to develop transition pathways toward agroecological, resilient and sustainable farming systems. One key pathway for such agroecological intensification is the diversification of cropping systems using intercropping and notably cereal-grain legume mixtures. Such mixtures or intercrops have the potential to increase and stabilize yields and improve cereal grain protein concentration in comparison to sole crops. Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to represent the combination of four joint effects of Competition, Complementarity, Cooperation, and Compensation as processes or effects occurring simultaneously and dynamically between species over the whole cropping cycle. Competition is when plants have fairly similar requirements for abiotic resources in space and time, the result of all processes that occur when one species has a greater ability to use limiting resources (e.g., nutrients, water, space, light) than others. Complementarity is when plants grown together have different requirements for abiotic resources in space, time or form. Cooperation is when the modification of the environment by one species is beneficial to the other(s). Compensation is when the failure of one species is compensated by the other(s) because they differ in their sensitivity to abiotic stress. The 4C approach allows to assess the performance of arable intercropping versus classical sole cropping through understanding the use of abiotic resources.
关键词: compensation competition complementarity cooperation interspecific interactions land equivalent ratio light nutrients species mixtures water
A better way to do small-for-size liver transplantation in rats
null
《医学前沿(英文)》 2011年 第5卷 第1期 页码 106-110 doi: 10.1007/s11684-011-0113-2
Establishing a model for small-for-size liver transplantation is the basis for this study of partial and living donor graft liver transplantation. This study aims to explore a simpler and more effective way of establishing a 30% small-for-size liver transplantation in rats. Sprague-Dawley rats were selected as the donors and recipients. Small-for-size orthotopic liver transplantation was performed using Kamada’s two-cuff method. The donor’s liver was flushed via the abdominal aorta and hepatectomy was performed in situ. The animals were divided into three groups depending on the graft selected, with 40 pairs of rats in each group. In group I, the median lobe of the liver was used as graft; in group II, the right half of the median lobe and the right lobe were used as graft; and in group III, the median and right lobes were used as graft. In groups I and II, the bodyweights of donors were the same as those of recipients; however, in group III the bodyweights of donors were 100–120 g less than those of the recipients. The duration needed for transplantation, the 7-day survival rates, and the technical complication rates were compared among these three groups. The time required for hepatectomy was shorter in group III compared with groups I and II (8.8?±?0.7 min vs. 11.5?±?1.1 min and 10.1?±?1.0 min, P = 0.001). The cold ischemia time for the grafts, the anhepatic times, and the transplantation times for the recipients were not significantly different among the three groups. Compared with groups I and II, the incidence of bleeding, bile leakage, and inferior vena caval strictures were significantly decreased in group III (P<0.05). No significant differences between the three groups were found based on other complications after the operation (P>0.05). Group III had better 7-day survival rates and longer median survival times but the differences were not statistically significant. The method of small for donor bodyweight using the median and right lobes for grafting may be a more effective and simpler way of establishing a 30% small-for-size liver transplantation in rats, as shown by the shorter hepatectomy time and the occurrence of fewer complications after the operation.
Active fuel design—A way to manage the right fuel for HCCI engines
Zhen HUANG,Zhongzhao LI,Jianyong ZHANG,Xingcai LU,Junhua FANG,Dong HAN
《能源前沿(英文)》 2016年 第10卷 第1期 页码 14-28 doi: 10.1007/s11708-016-0399-5
关键词: active fuel design HCCI gasoline n-heptane engine combustion
Modeling nanostructured catalyst layer in PEMFC and catalyst utilization
Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG
《化学科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 297-302 doi: 10.1007/s11705-011-1201-1
关键词: catalyst layer PEM fuel cell lattice model Monte Carlo method catalyst utilization
Oxidant or catalyst for oxidation?
Jianzhi Huang, Huichun Zhang
《环境科学与工程前沿(英文)》 2019年 第13卷 第5期 doi: 10.1007/s11783-019-1158-8
《能源前沿(英文)》 2023年 第17卷 第2期 页码 189-197 doi: 10.1007/s11708-023-0873-9
关键词: distribution network local virtual private network network charges peer-to-peer (P2P) energy trading practical implementation.
Monte Carlo simulation of the PEMFC catalyst layer
WANG Hongxing, CAO Pengzhen, WANG Yuxin
《化学科学与工程前沿(英文)》 2007年 第1卷 第2期 页码 146-150 doi: 10.1007/s11705-007-0027-3
关键词: catalyst utilization PEMFC commercialization Pt/C catalyst conduction
Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI
《信息与电子工程前沿(英文)》 2016年 第17卷 第3期 页码 265-280 doi: 10.1631/FITEE.1500134
关键词: Multi-pair two-way relay Adaptive robust beamformer Channel state information (CSI) Maximum signal-to-interference-and-noise ratio (Max-SINR) Maximum signal-to-leakage-and-noise ratio (Max-SLNR)
Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao
《化学科学与工程前沿(英文)》 2019年 第13卷 第1期 页码 185-191 doi: 10.1007/s11705-018-1713-z
关键词: manganese oxide bismuth vanadium tetraoxide photocatalytic ozonation hydroxyl radical co-catalyst
《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1337-7
• Activated carbon was proposed to be an efficient accelerant for molded red mud catalyst.
关键词: NOx Selective catalytic reduction Iron-based catalyst Red mud Monolithic catalyst Activated carbon
标题 作者 时间 类型 操作
Novel synthetic approaches and TWC catalytic performance of flower-like Pt/CeO
Zongcheng ZHAN,Xiaojun LIU,Dongzhu MA,Liyun SONG,Jinzhou LI,Hong HE,Hongxing DAI
期刊论文
Liquid metal printing opening the way for energy conservation in semiconductor manufacturing industry
期刊论文
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
期刊论文
Active fuel design—A way to manage the right fuel for HCCI engines
Zhen HUANG,Zhongzhao LI,Jianyong ZHANG,Xingcai LU,Junhua FANG,Dong HAN
期刊论文
Modeling nanostructured catalyst layer in PEMFC and catalyst utilization
Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG
期刊论文
P2P energy trading via public power networks: Practical challenges, emerging solutions, and the way forward
期刊论文
Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information
Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI
期刊论文
Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic
Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao
期刊论文