نتایج جستجو برای: restoration cost

تعداد نتایج: 436990  

Journal: :Nature Climate Change 2022

Abstract One of the most promising ways to rapidly remove CO 2 from atmosphere is through restoration tropical forests. Ongoing and future climate change may, however, threaten permanence carbon stored restoration. Excessive heat, drought or increased disturbances such as wildfire could all negatively impact integrity restored carbon. To investigate these risks forest restoration, we performed ...

2008
Weimin Xi Robert N. Coulson John D. Waldron Maria D. Tchakerian Charles W. Lafon David M. Cairns Andrew G. Birt Kier D. Klepzig

Forest restoration is affected by two compounding problems. First, the goals of restoration often are unclear and involve the simultaneous consideration of a number of diverse criteria including aesthetics, biodiversity, recreation, and economic cost. Second, restoration management is a long-term process such that effects are difficult to measure at the time of implementation. Moreover, restora...

Journal: :Frontiers in forests and global change 2022

Logged forests cover four million square kilometers of the tropics, capturing carbon more rapidly than temperate and harboring rich biodiversity. Restoring these is essential to help avoid worst impacts climate change. Yet monitoring tropical forest recovery challenging. We track abundance early-successional species in a restoration concession Indonesia. If are carefully chosen, they can be use...

Journal: :IEEE Journal on Selected Areas in Communications 2001
Joon-Min Gil Chan Yeol Park Chong-Sun Hwang Doo-Soon Park Jin Gon Shon Young-Sik Jeong

This paper proposes a restoration scheme based on mobility learning and prediction in the presence of the failure of mobility databases in personal communication systems (PCSs). In PCSs, mobility databases must maintain the current location information of users to provide a fast connection for them. However, the malfunction of mobility databases may cause some location information to be lost. A...

2004
Shanzhi CHEN Shiduan CHENG Bin CHEN Junliang CHEN

Networkhervice survivability is increasingly becoming important to customers, as well as telecommunication service providers and network operators. So survivability is an important problem demanding prompt solution in design and planning of new telecommunications networks (e.g., SDH networks and ATM networks). In the past a few years, different restoration mechanisms for SDH and ATM networks ha...

2017
Travis M Apgar Devon E Pearse Eric P Palkovacs

Human-driven evolution can impact the ecological role and conservation value of impacted populations. Most evolutionary restoration approaches focus on manipulating gene flow, but an alternative approach is to manipulate the selection regime to restore historical or desired trait values. Here we examined the potential utility of this approach to restore anadromous migratory behavior in coastal ...

2013
Myounggyu Won Radu Stoleru Harshavardhan Chenji Wei Zhang

This paper investigates the optimal connectivity restoration in segmented sensor networks, where mobile/relay nodes are optimally placed to form “bridges” among segments, such that both the average path length from nodes to the sink and the number of mobile nodes used are minimized. We formulate the optimal connectivity restoration as a multi-objective optimization problem and develop centraliz...

2015
Mwaba Coster Qiong Liu

This paper discusses an imperfect preventive maintenance model for a deteriorating repairable system with consideration of the reliability limitand random maintenance quality. The model is derived from the combination of failure rate adjustment and age over an infinite time horizon. The maintenance intervals are obtained assuming both the failure rate increase factor and age restoration factor ...

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