Results 31 to 40 of about 25,640,457 (357)

Spatial-temporal heterogeneity and driving factors of water yield services in Citarum river basin unit, West Java, Indonesia [PDF]

Archives of Environmental Protection, 2023
Many countries, including Indonesia, face severe water scarcity and groundwater depletion. Monitoring and evaluation of water resources need to be done.
Irmadi Nahib, Wiwin Ambarwulan, Dewayany Sutrisno, Mulyanto Darmawan, Yatin Suwarno, Ati Rahadiati, Jaka Suryanta, Yosef Prihanto, Aninda W. Rudiastuti, Yustisi Lumban Gaol   +9 more
doaj   +1 more source

Generalized Q Models for Investment [PDF]

The Review of Economics and Statistics, 1991
The authors extend the Q theory of investment to allow for adjustment costs for labor, under the additional assumption that the firm is a monopolistic competitor in the output market. The issue of nonconstant returns to scale is also discussed. The authors show that the standard Q model is a special case of a more general model involving testable ...
Galeotti, Marzio, Schiantarelli, Fabio
openaire   +2 more sources

New Perspective on Investment Models

The Journal of Portfolio Management, 2021
What is the secret ingredient to securing better long-term investment outcomes? Investors seldom consider institutional investors from an organizational and strategic perspective. Thinking in terms of investment models highlights a severely under-researched area.
Koedijk, Kees, Slager, Alfred
openaire   +4 more sources

Simulating the Land Use and Carbon Storage for Nature-Based Solutions (NbS) under Multi-Scenarios in the Three Gorges Reservoir Area: Integration of Remote Sensing Data and the RF-Markov-CA-InVEST Model

Remote Sensing, 2023
Rapid industrialisation and urbanisation have moved contemporary civilization ahead but also deepened clashes with nature. Human society’s long-term evolution faces a number of serious problems, including the climate issue and frequent natural disasters.
Guiyuan Li, Guo Cheng, Guohua Liu, Chi Chen, Yu He   +4 more
semanticscholar   +1 more source

Spatial and Temporal Evolution and Drivers of Habitat Quality of Urban Agglomeration in Lower Yellow River Basin

Shuitu baochi tongbao, 2023
[Objective] The habitat quality of the urban agglomeration in the lower reaches of the Yellow River, and the relevant influencing factors were studied in order to provide a reference for ecological protection and quality development in the region ...
Wu Yanxia, Liu Fangnan, Chen Baotong
doaj   +1 more source

Spatiotemporal Evolution and Attribution Analysis of Water Yield in the Xiangjiang River Basin (XRB) Based on the InVEST Model

Water, 2023
As a result of climate change and human activities, water resources in the Xiangjiang River Basin (XRB) are subject to seasonal and regional shortages. However, previous studies have lacked assessment of the spatiotemporal evolution of water yield in the
Zongmin Wang, Qizhao Li, Lin Liu, Hongling Zhao, H. Ru, Jiapeng Wu, Ya Deng   +6 more
semanticscholar   +1 more source

Spatial-temporal Evolution and Prediction of Ecosystem Carbon Storage on Hainan Island by Coupling InVEST and FLUS Models

Shuitu baochi tongbao, 2023
[Objective] The influence of land use changes on carbon storage were studied under the expansion of urbanization in Hainan Island to reveal the spatial-temporal evolution pattern of carbon storage and to predict future development trends in order to ...
Fang Zanshan, Zhong Cairong, Wang Fengxia, Cheng Cheng, Lü Xiaobo, Chen Xu   +5 more
doaj   +1 more source

Large investment model

Frontiers of Information Technology & Electronic Engineering
Abstract Traditional quantitative investment research is encountering diminishing returns alongside rising labor and time costs. To overcome these challenges, we introduce the large investment model (LIM), a novel research paradigm designed to enhance both performance and efficiency at scale.
Jian Guo, Heung-Yeung Shum
openaire   +2 more sources

Study on Spatiotemporal Evolution and Driving Forces of Habitat Quality in the Basin along the Yangtze River in Anhui Province Based on InVEST Model

Land, 2023
The basin along the Yangtze River in Anhui Province is an important ecological protective screen in the Yangtze River Delta Economic Belt, with a large number of wetlands, lakes, and nature reserves in the basin.
Yougen Cao, Cheng Wang, Yue Su, Houlang Duan, Xumei Wu, Rui Lu, Q. Su, Yutong Wu, Zhaojun Chu   +8 more
semanticscholar   +1 more source

Island ecosystem services value, land-use change, and the National New Area Policy in Zhoushan Archipelago, China

Island Studies Journal, 2017
Inhabited islands in China now face increasing stress from urbanisation and related development policies. Since the National New Area was established in 2011, dramatic land-use changes in the Zhoushan Archipelago have affected its ecosystem health and ...
Shuangshuang Qiu, Wenze Yue, Huan Zhang, Jiaguo Qi   +3 more
doaj   +1 more source