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Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 875-885 doi: 10.1007/s11783-013-0568-2

Abstract: Maintenance of the ecosystem health of a river is of great importance for local sustainable development. On the basis of both qualitative and quantitative analysis of the influence of natural variations and human activities on the ecosystem function of the Weihe River, the changes in major factors affecting its ecosystem health are determined, which include: 1) Deficiency of environment flow: since the 1960s, the incoming stream flow shows an obvious decreasing tendency. Even in the low flow period, 80% of the water in the stream is impounded by dams for agriculture irrigation in the Baoji district. As a result, the water flow maintained in the stream for environmental use is very limited. 2) Deterioration of water quality: the concentrations of typical pollutants like Chemical Oxygen Demand (COD) and NH -N are higher than their maximum values of the Chinese environmental quality standard. Very few fish species can survive in the River. 3) Deformation of water channels: the continuous channel sedimentation has resulted in the decrease in stream gradient, shrinkage of riverbed and the decline in the capability for flood discharge. 4) Loss of riparian vegetation: most riparian land has been occupied by urban construction activities, which have caused the loss of riparian vegetation and biodiversity and further weakened flood control and water purification functions.

Keywords： influencing factors     ecosystem health     ecological and environmental functions     the Weihe River     Shaanxi Province    

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Industrial Structure Adjustment of Shaanxi Province under the Limited Water Resources Condition

Xiao-jun Liu,Zhen-yu Guo,Chao Ding,Han-liang Fu

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 378-384 doi: 10.15302/J-FEM-2014057

Abstract: Shaanxi Province is a region poor of water resources in China, and the lack of water resources is becominga key factor which restricts the social and economic development of Shaanxi Province.In the perspective of efficient utilization of water resources, Shaanxi Province is committed to theProvince.Province.

Keywords： water resources     capacity of water resources     industrial transformation     multi-objective programming    

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Natural Science Foundation of China (Nos. 61201209 and 61401499), the Natural Science Foundation of ShaanxiProvince, China (No. 2015JM6340), and the Industrial Science and Technology Project of Shaanxi Province Article

Shui-qing GONG,Jing CHEN,Qiao-yan KANG,Qing-wei MENG,Qing-chao ZHU,Si-yi ZHAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 7,   Pages 701-716 doi: 10.1631/FITEE.1500387

Abstract: Software-defined networking (SDN) enables the network virtualization through SDN hypervisors to share the underlying physical SDN network among multiple logically isolated virtual SDN networks (vSDNs), each with its own controller. The vSDN embedding, which refers to mapping a number of vSDNs to the same substrate SDN network, is a key problem in the SDN virtualization environment. However, due to the distinctions of the SDN, such as the logically centralized controller and different virtualization technologies, most of the existing embedding algorithms cannot be applied directly to SDN virtualization. In this paper, we consider controller placement and virtual network embedding as a joint vSDN embedding problem, and formulate it into an integer linear programming with objectives of minimizing the embedding cost and the controller-to-switch delay for each vSDN. Moreover, we propose a novel online vSDN embedding algorithm called CO-vSDNE, which consists of a node mapping stage and a link mapping stage. In the node mapping stage, CO-vSDNE maps the controller and the virtual nodes to the substrate nodes on the basis of the controller-to-switch delay and takes into account the subsequent link mapping at the same time. In the link mapping stage, CO-vSDNE adopts the -shortest path algorithm to map the virtual links. The evaluation results with simulation and Mininet emulation show that the proposed CO-vSDNE not only significantly increases the long-term revenue to the cost ratio and acceptance ratio while guaranteeing low average and maximum controller-to-switch delay, but also achieves good vSDN performance in terms of end-to-end delay and throughput.

Keywords： Software-defined networking (SDN)     Network virtualization     Controller placement     Virtual network embedding     Coordination    

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Hydraulic properties of typical salt-affected soils in Jiangsu Province, China

CHEN Xiaomin, SHEN Qirong, XU Yangchun

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 443-447 doi: 10.1007/s11783-007-0070-9

Abstract: Every year about 1,500 ha of land is reclaimed from the sea along the coastline of Jiangsu Province,

Keywords： hydraulic     Jiangsu Province     coastline     important     reclaimed    

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Relationship between electricity consumption and economic growth of Guangdong Province in China

Lianhong LV, Hong LUO, Baoliu ZHANG

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 351-355 doi: 10.1007/s11708-012-0209-7

Abstract: Guangdong is a province with the most electricity consumption (EC) and the fastest economic growth inWhen the GDP and GIOV grows 1 unit respectively, the EC of Guangdong province will increase 0.97 and

Keywords： co-integration     granger causality     electricity consumption (EC)     economic growth    

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impacts of climate factors on regional agricultural and forestry biomass resources in north-eastern province

Wenyan Wang, Wei Ouyang, Fanghua Hao, Yun Luan, Bo Hu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0864-8

Abstract: Heilongjiang Province was selected as research area in North-east China.

Keywords： Biomass resources     Net primary productivity (NPP)     Climate change     Heilongjiang Province     China     Climate     Energy    

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Prevalence and causes of air pollution and lung cancer in Xuanwei City and Fuyuan County, Yunnan Province

Yi Cao, Huaping Gao

Frontiers of Medicine 2012, Volume 6, Issue 2,   Pages 217-220 doi: 10.1007/s11684-012-0192-8

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National Natural Science Foundation of China (No. 61401340), the Natural Science Basic Research Plan in ShaanxiProvince of China (No. 2016JM6035), the Fundamental Research Funds for the Central Universities, China Article

Rong JIAO,Lu-ping XU,Hua ZHANG,Cong LI

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6,   Pages 543-552 doi: 10.1631/FITEE.1500365

Abstract: X-ray pulsars offer stable, periodic X-ray pulse sequences that can be used in spacecraft positioning systems. A method using X-ray pulsars to determine the initial orbit of a satellite is presented in this paper. This method suggests only one detector to be equipped on the satellite and assumes that the detector observes three pulsars in turn. To improve the performance, the use of incremental phase in one observation duration is proposed, and the incremental phase is combined with the time difference of arrival (TDOA). Then, a weighted least squares (WLS) algorithm is formulated to calculate the initial orbit. Numerical simulations are performed to assess the proposed orbit determination method.

Keywords： Orbit determination algorithm     Single X-ray pulsar detector     Phase increment     Two-body motion equations     Weighted least squares method    

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ON THE ADOPTION OF ORGANIC FERTILIZERS AND BIOPESTICIDES AMONG FARMERS: EVIDENCE FROM HEILONGJIANG PROVINCE

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 31-47 doi: 10.15302/J-FASE-2023482

Abstract:

● Farmer adoption of organic fertilizer and biopesticides was found to be positively correlated.

Keywords： biopesticides     green production     organic fertilizer     technical environment    

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The epidemic status and risk factors of lung cancer in Xuanwei City, Yunnan Province, China

Yize Xiao, Ying Shao, Xianjun Yu, Guangbiao Zhou

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 388-394 doi: 10.1007/s11684-012-0233-3

Abstract:

Xuanwei City (formerly known as Xuanwei County) locates in the northeastern of Yunnan Province and

Keywords： lung cancer     Xuanwei     smoky coal combustion     polycyclic aromatic hydrocarbons     epidemiology    

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New Technology promotes the Discovery of the Tarim Natural Gas Province

Qiu Zhongjian

Strategic Study of CAE 2000, Volume 2, Issue 9,   Pages 38-41

Abstract:

The Tarim gas province consist of two major gas regions (Tabei-kuqa and Taxinan).

Keywords： key technology     innovation     discovery     Tarim gas province    

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evaluating the organic matter source at different ecologic zones of tidal salt marsh, North Jiangsu Province

GAO Jianhua, YANG Guishan, OU Weixin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 81-88 doi: 10.1007/s11783-008-0016-x

Abstract: N of surface, core sediments, and plants of tidal salt marshes in North Jiangsu Province are analyzed
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Temporal changes in the characteristics of algae in Dianchi Lake, Yunnan Province, China

Ruixia SHEN,Chunyan TIAN,Zhidan LIU,Yuanhui ZHANG,Baoming LI,Haifeng LU,Na DUAN

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 266-275 doi: 10.15302/J-FASE-2015064

Abstract: Dianchi Lake in Yunnan Province, China is suffering from severe eutrophication and is listed in the Three

Keywords： algal blooms     temporal change     biochemical property     biodiversity     hydrothermal liquefaction    

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benefits of power generation by straw biomass —A case study on the Sheyang Straw Power Plants in Jiangsu Province

Xiaoshun LI , Futian QU , Dongmei JIANG , Peixin ZHU ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 348-353 doi: 10.1007/s11783-009-0026-3

Abstract: Power generation using straw biomass has quantifiable benefits from an economic, ecological, and sociological perspective in China. The methods used to construct the assessment models of these integrated benefits were the revenue capitalization approach and the discounted-cash-flow approach. The results indicated that a straw power plant with the capacity of 2.50×10 W and burning 1.23×10 tons of cotton straw could annually supply 1.40×10 kWh of power. However, it would not be until six years later that these results could be measured. Over the long term, the gross benefits could reach up to 4.63×10 Yuan. Therefore, the total benefits are expected to be 1.18 × 10 Yuan if all available straw resources are used to generate power. The policy implication showed that the long-term integrated benefits of power generation by straw biomass outweighed the short-term benefits. This is the main incentive to use straw biomass for power generation in the future.

Keywords： straw biomass resources     power generation     renewable energy     Sheyang county    

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Inspirations from Technological Transformation and Intelligence Upgrading of Manufacturing in Zhejiang Province

Ji Huanyong, Zhou Yuan

Strategic Study of CAE 2018, Volume 20, Issue 4,   Pages 122-126 doi: 10.15302/J-SSCAE-2018.04.020

Abstract: Since 2013, Zhejiang Province has accumulated rich working experience in terms of advancing technologicalBased on field research of the manufacturing industry in Zhejiang Province, this study summarized theof technological transformation and intelligence upgrading of the manufacturing industry in Zhejiang Province

Keywords： Zhejiang Province     technological transformation     intelligence upgrading     inspirations    

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Title Author Date Type Operation

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

Journal Article

Industrial Structure Adjustment of Shaanxi Province under the Limited Water Resources Condition

Xiao-jun Liu,Zhen-yu Guo,Chao Ding,Han-liang Fu

Journal Article

Natural Science Foundation of China (Nos. 61201209 and 61401499), the Natural Science Foundation of ShaanxiProvince, China (No. 2015JM6340), and the Industrial Science and Technology Project of Shaanxi Province

Shui-qing GONG,Jing CHEN,Qiao-yan KANG,Qing-wei MENG,Qing-chao ZHU,Si-yi ZHAO

Journal Article

Hydraulic properties of typical salt-affected soils in Jiangsu Province, China

CHEN Xiaomin, SHEN Qirong, XU Yangchun

Journal Article

Relationship between electricity consumption and economic growth of Guangdong Province in China

Lianhong LV, Hong LUO, Baoliu ZHANG

Journal Article

impacts of climate factors on regional agricultural and forestry biomass resources in north-eastern province

Wenyan Wang, Wei Ouyang, Fanghua Hao, Yun Luan, Bo Hu

Journal Article

Prevalence and causes of air pollution and lung cancer in Xuanwei City and Fuyuan County, Yunnan Province

Yi Cao, Huaping Gao

Journal Article

National Natural Science Foundation of China (No. 61401340), the Natural Science Basic Research Plan in ShaanxiProvince of China (No. 2016JM6035), the Fundamental Research Funds for the Central Universities, China

Rong JIAO,Lu-ping XU,Hua ZHANG,Cong LI

Journal Article

ON THE ADOPTION OF ORGANIC FERTILIZERS AND BIOPESTICIDES AMONG FARMERS: EVIDENCE FROM HEILONGJIANG PROVINCE

Journal Article

The epidemic status and risk factors of lung cancer in Xuanwei City, Yunnan Province, China

Yize Xiao, Ying Shao, Xianjun Yu, Guangbiao Zhou

Journal Article

New Technology promotes the Discovery of the Tarim Natural Gas Province

Qiu Zhongjian

Journal Article

evaluating the organic matter source at different ecologic zones of tidal salt marsh, North Jiangsu Province

GAO Jianhua, YANG Guishan, OU Weixin

Journal Article

Temporal changes in the characteristics of algae in Dianchi Lake, Yunnan Province, China

Ruixia SHEN,Chunyan TIAN,Zhidan LIU,Yuanhui ZHANG,Baoming LI,Haifeng LU,Na DUAN

Journal Article

benefits of power generation by straw biomass —A case study on the Sheyang Straw Power Plants in Jiangsu Province

Xiaoshun LI , Futian QU , Dongmei JIANG , Peixin ZHU ,

Journal Article

Inspirations from Technological Transformation and Intelligence Upgrading of Manufacturing in Zhejiang Province

Ji Huanyong, Zhou Yuan

Journal Article