Understanding the driving mechanisms behind ecosystem service (ES) trade-offs and synergies is crucial for sustainable management. This study integrates Social-Ecological System Framework (SESF) with path analysis to explore relationships among crop production (CP), water retention (WR), soil conservation (SC) in Shanxi Province, China. We identified six key factors—annual mean temperature (Tem), total annual precipitation (Pre), Net Primary Productivity (NPP), per capita GDP (GDP),...

To study the problems of large deformation surrounding rock and water-rich dense fracture zones during tunnel construction through fault zone, NPR (Negative Poisson’s Ratio) anchor cable control method is studied based on Tabaiyi Tunnel. First, mechanical mechanism analyzed by geological conditions, lithology strength rock, different are obtained. Then, self-developed high-prestressed cable, prevention measures designed. The high-stress net technology used to support common while in zones,...

Shale is a special kind of rock mass and it particularly important to evaluate its brittleness for the extraction gas oil from nanoporous shale. The current studies are mostly macro-evaluation methods, there lack micro-brittleness index that based on nanoindentation tests. In this paper, tests carried out surface shale obtain mechanical property, then novel proposed. Drawing heat map by meshing indentation, distribution characteristics variation laws between mineral explored. results showed...

The "vertical integration" management model that resulted in high consumption of resources, poor economic efficiency and weak competitiveness among enterprises, has been unable to meet the increasingly fierce competition construction industry. implementation a new type mode become top priority development Based on reality industry this paper proposes supply chain integration order cope with even competition. This first introduces chain, then combining characteristics industry, describes...

Abstract Background Earthquakes and landslides pose significant threats to human safety property, necessitating early warning systems. However, the high construction costs of earthquake systems present a challenge. Purpose Landslide warnings are more prevalent, so linking them could address cost concerns. Hence, it is crucial validate feasibility utilizing GNSS landslide monitoring as assistance for Methods This paper analyzes acceleration anomaly data from 31 points near epicenter May 2,...

An analytical general solution is derived for reasoning uncertain knowledge by multiple sub-model integration. By choosing decision rule each specific instance, a forest rather than tree will be constructed, thus all relatively independent attribute sets can determined automatically without any human intervention. Necessary discretization mixed-mode subset processed based on post-discretization strategy to minimize information loss.

PageRank Algorithm, based on the link analysis, has been widely used to measure popularity of web pages. However, in classical algorithm, transition probability certain page is distributed equally by page's out-links, which does not meet real actions WWW. This paper investigates authoritative factor (based analysis) and temporal accessing importance It believed that pages with large in-links or out-links (we call them ones) newly are more attractive towards visitors. Hence, extended Weighted...

The lack of a complete conceptual cognition and the establishment an operational method system for environmental design teaching. Based on requirements ecological sustainable development, it is pointed out that professional education should take concept development as core idea From macro level, holistic systematic teaching reform are to build project. Through integration traditional engineering courses combination open integrated design, we can cultivate professionals with awareness capabilities.

Water and mud inrush disaster has become one of the greatest challenges in tunnel construction. In non-karst tunnels, development fractures rocks is an important reason for inducing water inrush. This research focuses on genesis, evolution prevention disasters case Dailiangshan Tunnel. Firstly, causes tunnels are analyzed, including lithology, geological structure, surface runoff recharge, excavation disturbance, etc. Secondly, describes process seepage instability structural rock mass....

It is the basis that sound development of hydropower engineering insurance market for improving construction. Therefore, it great significance to focus on main participants' strategies. In this paper, information asymmetry participants in can be described detail. Furthermore, incomplete static game model between insurer and insured established origin phenomenon. Meanwhile, avoiding economic loss caused by moral hazard, paper puts forward some possible solutions market.

Due to the circuit breaker's three-phase inconsistent protection malfunction during commissioning of a 500kV transformer substation, process was abnormal suspended. In order avoid occurrence event same kind, paper, based on event, analyzes secondary protection, illustrates action mechanism and concludes through analysis that caused by mis-wiring breaker body's circuit. On this basis, paper proposes practical measures for avoiding body in stage acceptance maintenance, so as improve stability...