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Important Progress in Estimating Forest Resources

Zhao Xianwen,Li Chonggui,Si Lin,Tian Yonglin,Yuan Kaixian

Strategic Study of CAE 2001, Volume 3, Issue 8,   Pages 15-24

Abstract:

Traditional forest resources inventory is a hard mission, which needs much time, work and money.resource inventory, especially in estimating forest stock volume, they include： Estimating volume stockremote sensing image against sampling plots on the ground, decreasing field work, increasing accuracy of stockvolume on compartment, fast selecting optimal function, and avoiding factors that are hard to be determinedstock volume.

Keywords： inventory by remote sensing     non-parameter estimation     forest stock volume     modern statistics    

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Sinks of steel in China–addition to in-use stock, export and loss

Hua GUO,Tianzhu ZHANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 141-149 doi: 10.1007/s11783-014-0696-3

Abstract: The researchers calculate the steel demand in China from 2000 to 2009 based on three sinks (steel stockThe researchers conclude that addition to in-use stock is the main driver of steel demand and that the10-year average addition to in-use stock accounted for 77% of the steel sinks, in which 55% of the addition

Keywords： steel demand     driver     Material Flow Analysis (MFA)     Substance Flow Analysis (SFA)     addition to in-use stock    

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The influence of social media on stock volatility

Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 201-211 doi: 10.15302/J-FEM-2017018

Abstract: This study explores the influence of social media on stock volatility and builds a feature model withWe find that the effect of social factors, such as increased attention to a stock’s volatility, is moreA prediction model is introduced based on social factors and public sentiment to predict stock volatility

Keywords： stock volatility     social data     sentiment analysis     boosting algorithm    

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Progress of forest certification in China

Wenming LU, Maharaj MUTHOO

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 414-420 doi: 10.15302/J-FASE-2017185

Abstract: forest management.Program has resulted in little demand for forest certification of natural forest management units.to promote sustainable forest management and how the concept of forest certification can be used toIn general, forest certification in China has a clear role in sustainable forest management, both fortimber and non-timber forest products.

Keywords： China Forest Certification Scheme     forest certification     government support     opportunities and challenges     sustainable forest management    

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Proliferation of district heating using local energy resources through strategic building-stock management

Yi DOU, Keijiro OKUOKA, Minoru FUJII, Hiroki TANIKAWA, Tsuyoshi FUJITA, Takuya TOGAWA, Liang DONG

Frontiers in Energy 2018, Volume 12, Issue 3,   Pages 411-425 doi: 10.1007/s11708-018-0577-8

Abstract:

District heating systems using cogeneration technology and renewable resources are considered as an effective approach to resources conservation and reduction of greenhouse gas (GHG) emissions. However, wide-spread aging and depopulation problems, as well as the popularization of energy-saving technologies in buildings, are estimated to greatly decrease energy consumption, leading to inefficiency in district heating and barriers to technology proliferation. From a long-term perspective, land use changes, especially the progression of compact city plans, have the potential to offset the decrement in energy consumption that maintains the efficiency of district heating systems. An integrated model is developed in this paper based on building cohort analysis to evaluate the economic feasibility and environmental impact of introducing district heating systems to a long-term compact city plan. As applied to a case in the Soma Region of Fukushima, Japan, potential migration from the suburbs to the central station districts is simulated, where district heating based on gas-fired cogeneration is expected to be introduced. The results indicate that guided migration to produce concentrated centers of population can substantially increase the heat demand density, which supports a wider application of district heating systems and better low-carbon performance. These results are further discussed in relation to technology innovation and related policies. It is concluded that policies related to urban land use planning and energy management should be integrated and quantitatively evaluated over the long-term with the aim of supporting urban low-carbon sustainable development.

Keywords： building stock     compact city     district heating     energy use     Fukushima    

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A New Way to Study the Three Essential Factors of Forest Fire

Zhao Xianwen

Strategic Study of CAE 2000, Volume 2, Issue 5,   Pages 66-71

Abstract:

This thesis took the three essential factors of forest fire (fire source, environment, and litter)as the point of departure,and has approached the forecast method of forest fire in tropical area ofFor example,in the aspect of forest fire forecast, the main cause of forest fire was artificial fire,In the aspect of the analysis of environment that contributes to forest fire,correlation would revealIt provided an effective and quantitative way with higher reliability for forest fire forecast on region

Keywords： forecast of forest fire     space remote sensing     essential factors of forest fire     a new way    

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Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 421-427 doi: 10.1007/s11684-012-0223-5

Abstract: volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volumeto get a regression formula for standard liver volume (SLV) and BSA.It turned out that the mean liver volume of the control group was 1 058±337 cm3.The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level itwas significantly reduced with the lowest liver volume index (CTLV/SLV).

Keywords： liver volume variation     cirrhosis     acute liver failure (ALF)    

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New Trend of Forest Chemical Industry in China

Song Zhanqian

Strategic Study of CAE 2001, Volume 3, Issue 2,   Pages 1-6

Abstract:

Forest chemical industry can produce various useful products by chemical processing of forest resources.It is one of the important fields of effective and sustainable utilization of forest resources.The present conditiobns of the forest chemical industry in China was reviewed in this paper.

Keywords： forest chemical industry     forest resource     chemical processing    

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Cattle manure biochar and earthworm interactively affected CO and NO emissions in agricultural and forest

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1473-8

Abstract: ItemContent>

• Earthworms increase CO2 and N2O emissions in agricultural and forest

Keywords： Carbon sequestration     Forest soil     Cattle manure biochar     Greenhouse gas emissions     Soil fauna    

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Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1400-1414 doi: 10.1007/s11709-021-0779-8

Abstract: Aggregates are the biggest contributor to concrete volume and are a crucial parameter in dictating its, a detailed experimental investigation was carried out to evaluate the effect of sand-to-aggregate volume

Keywords： aggregates     non-destructive testing     sand-to-aggregate volume ratio (s/a)     maximum aggregate    

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Floating forest: A novel breakwater-windbreak structure against wind and wave hazards

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1111-1127 doi: 10.1007/s11709-021-0757-1

Abstract: A novel floating breakwater-windbreak structure (floating forest) has been designed for the protectionAn array of tubular columns on the sloping deck of the breakwater act as an artificial forest-type windbreakThe study shows that the proposed 1 km long floating forest is able to shelter a lee area that stretches

Keywords： floating structure     breakwater     windbreak     hydrodynamic     CFD    

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Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 456-465 doi: 10.1007/s11709-013-0218-6

Abstract: soil and hydrological properties in an upland field catchment, which was reclaimed partially from a forestcatchment, were compared with another forest catchment.water-holding capacity of soil in the upland field catchment became smaller after the reclamation from forestfound that peak discharge and direct runoff in the upland field catchment increased compared with the forestThis study will provide information for forest managers in planning and making decisions for land and

Keywords： land-use change     hydrological processes     upland field catchment     forest catchment     semi-distributed hydrological    

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Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 224-238 doi: 10.1007/s11709-022-0812-6

Abstract: In this study, we developed a hybrid model of Random Forest coupling with a Relief algorithm (RF-RL)

Keywords： soil consolidation coefficient     machine learning     random forest     Relief    

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Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition

Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 277-286 doi: 10.1007/s11465-015-0348-8

Abstract:

This paper addresses the development of a random forest classifier for the multi-class fault diagnosisapplication is identified and the best features are selected through the internal ranking of the random forest

Keywords： fault diagnosis     spur gearbox     wavelet packet decomposition     random forest    

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Soil enzyme activities and their indication for fertility of urban forest soil

SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 218-223 doi: 10.1007/s11783-008-0037-5

Abstract: To reveal the biological characteristics of urban forest soil and the effects of soil enzyme on soilfertility as well as the correlation between physicochemical properties and enzyme activities, 44 urban forestdehydrogenase, and alkaline phosphatase were important biological indicators for the fertility of urban forestThe more soil enzyme activities there were, the higher the fertility of urban forest soil.
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Title Author Date Type Operation

Important Progress in Estimating Forest Resources

Zhao Xianwen,Li Chonggui,Si Lin,Tian Yonglin,Yuan Kaixian

Journal Article

Sinks of steel in China–addition to in-use stock, export and loss

Hua GUO,Tianzhu ZHANG

Journal Article

The influence of social media on stock volatility

Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE

Journal Article

Progress of forest certification in China

Wenming LU, Maharaj MUTHOO

Journal Article

Proliferation of district heating using local energy resources through strategic building-stock management

Yi DOU, Keijiro OKUOKA, Minoru FUJII, Hiroki TANIKAWA, Tsuyoshi FUJITA, Takuya TOGAWA, Liang DONG

Journal Article

A New Way to Study the Three Essential Factors of Forest Fire

Zhao Xianwen

Journal Article

Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Journal Article

New Trend of Forest Chemical Industry in China

Song Zhanqian

Journal Article

Cattle manure biochar and earthworm interactively affected CO and NO emissions in agricultural and forest

Journal Article

Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Journal Article

Floating forest: A novel breakwater-windbreak structure against wind and wave hazards

Journal Article

Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Journal Article

Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Journal Article

Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition

Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ

Journal Article

Soil enzyme activities and their indication for fertility of urban forest soil

SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian

Journal Article