中国科学院机构知识库网格系统: 检索

Optimizing Non-Point Source Pollution Management: Evaluating Cost-Effective Strategies in a Small Watershed within the Three Gorges Reservoir Area, China 期刊论文 OAI收割
LAND, 2024, 卷号: 13, 期号: 6, 页码: 21
作者: Chang, Renfang; Wang, Yunqi; Liu, Huifang; Wang, Zhen; Ma, Lei

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收藏 | 浏览/下载：11/0 | 提交时间：2024/08/30

best management practices SWAT model driving factors entropy weight method cost-effectiveness analysis

Dynamic cost analysis for disposal of low and intermediate level nuclear waste in China 期刊论文 OAI收割
ANNALS OF NUCLEAR ENERGY, 2021, 卷号: 154
作者: Xia, Fan; Zhao, Jiyun; Cai, Junjie; Liu, Jian

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收藏 | 浏览/下载：26/0 | 提交时间：2021/05/17

Activity-based Life Cycle Costing Dynamic cost estimation Low and intermediate level waste Waste management Nuclear power plant

Cost-benefit analysis of ecosystem services in China 期刊论文 OAI收割
ECOLOGICAL ENGINEERING, 2018, 卷号: 125, 页码: 143-148
作者: Cao, Shixiong; Yu, Zhongqi; Zhang, Junze; Feng, Fei; Xu, Duanyang

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收藏 | 浏览/下载：49/0 | 提交时间：2019/05/23

Ecosystem services Cost-benefit analysis Environmental conservation Land management Ecological restoration

Classical mean-variance model revisited: pseudo efficiency 期刊论文 OAI收割
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY, 2015, 卷号: 66, 期号: 10, 页码: 1646-1655
作者: Cui, Xiangyu; Duan, Li; Yan, Jiaan

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收藏 | 浏览/下载：21/0 | 提交时间：2018/07/30

mean-variance portfolio selection minimum cost policy binding budget spending optimal wealth management

How inhibiting nitrification affects nitrogen cycle and reduces environmental impacts of anthropogenic nitrogen input 期刊论文 OAI收割
GLOBAL CHANGE BIOLOGY, 2015, 卷号: 21, 期号: 3, 页码: 1249-1257
作者: Qiao, Chunlian; Liu, Lingli; Hu, Shuijin; Compton, Jana E.; Greaver, Tara L.

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收藏 | 浏览/下载：32/0 | 提交时间：2022/09/13

cost-benefit analysis ecosystem services N2O emission NH3 emission nitrogen fertilizer nitrogen leaching nitrogen management NO emission

Simulating the impact of watershed management for surface water quality protection: A case study on reducing inorganic nitrogen load at a watershed scale EI期刊论文 OAI收割
2014
作者: Tao Fulu

收藏 | 浏览/下载：46/0 | 提交时间：2014/12/31

Economic and social effects Cost effectiveness Forestry Nitrogen Nutrients Regression analysis Soil conservation Surface waters Water conservation Water management Water pollution Water quality Watersheds

Calculating the burden of disease of avian-origin H7N9 infections in China SCI/SSCI论文 OAI收割
2014
作者: Qi X. P.; Jiang D.; Wang H. L.; Zhuang D. F.; Ma J. Q.

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收藏 | 浏览/下载：19/0 | 提交时间：2014/12/24

Adjusted Life Years Virus-infection Health Cost Management Markets

Communication synchronization in wireless optical link (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者: Guo J.; Guo J.; Wang H.; Wang H.; Wang H.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

An FPGA based transceiving synchronization method is demonstrated for Free Space Optical (FSO) communication system which is discussed separately as the transmitting protocol and the receiving protocol. During the discussion of these two parts the co-operation of them is also discussed. The transmitting protocol interfaces the outer input data with a parallel port buffers the input data encodes the input data stream serializes the parallel data and outputs the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The receiving protocol filters and synchronizes the input serial data stream parallels the serial data stream decodes the input data checks received error handles transmission exception and interfaces the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces meaning that when interfacing the presented system to an outer system users don't have to consider what protocol the outer system transceiving data stream is under for example the TCP/IP protocol or anything else in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is a working solution at a certain bit rate scale. 2012 IEEE.

Ecosystem service tradeoff between traditional and modern agriculture: a case study in Congjiang County, Guizhou Province, China SCI/SSCI论文 OAI收割
2012
Zhang D.; Min Q. W.; Liu M. C.; Cheng S. K.

收藏 | 浏览/下载：31/0 | 提交时间：2014/12/24

traditional agriculture rice-fish agriculture rice monoculture benefit and cost analysis (BCA) ecosystem services (ES) ecosystem dis-services (EDS) recreational value irrigated rice pesticide use cost-analysis insect pests management soil biodiversity valuation benefits

Transceiving protocol designc for a free space optical communication system (EI CONFERENCE) 会议论文 OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Hualong W.; Wanxin S.; Zhongbao X.

收藏 | 浏览/下载：58/0 | 提交时间：2013/03/25

A new transceiving protocol is demonstrated for a Free Space Optical (FSO) communication system and it's discussed in two parts: the transmitting protocol and the receiving protocol. During the discussion of these two parts the cooperation of them is also discussed. Different from wired communication an FSO system modulates the data on a narrow beam of laser transmitting through the free space or the atmosphere and the protocol presented in this paper is mainly optimized for terrestrial Free Space Optical links in which the signal channel of the system is mainly the atmosphere. Due to the complex composition and activity of the atmosphere this signal channel brings in great influence on the transmitting laser in it for example the absorption and scattering of the atmosphere molecules and aerosols the scintillation of received laser power caused by the turbulence of the atmosphere all of which results in a much higher Bit Error Rate (BER) of the communication system. Thus in designing a protocol for an FSO system more effort should be taken in the encoding of the data stream the synchronization of the data stream error checking and exception handling. The main function of the transmitting protocol includes interfacing the outer input data with a parallel port buffering the input data encoding the input data stream serializing the parallel data and output the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The main function of the receiving protocol includes filtering and synchronizing the input serial data stream paralleling the serial data stream decoding the input data error checking exception handling and interfacing the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces meaning that when interfacing the presented system to an outer system you don't have to consider what protocol the outer system transceiving data stream is under for example the TCP/IP protocol or anything else in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is working fine at a certain bit rate scale. 2009 SPIE.