Results 71 to 80 of about 6,231 (311)

Study on the Influence Mechanism of Load on the Mechanical Properties of Concrete Under Stress–Seepage–Chemical Coupling

open access: yesBuildings
The durability of concrete in immersed tunnels is critically influenced by the coupled effects of stress, seepage, and chemical erosion, particularly in inland water environments.
Qixian Wu   +4 more
doaj   +1 more source

Mechanical Anisotropy and Failure Characteristics of Columnar Jointed Rock Masses (CJRM) in Baihetan Hydropower Station: Structural Considerations Based on Digital Image Processing Technology

open access: yesEnergies, 2019
The columnar joints in Baihetan hydropower station are primary tensile joints since they were formed during the process of lava condensation. Understanding the influence of columnar jointed rock mass (CJRM) on the mechanical response and failure modes is
Yingjie Xia   +3 more
doaj   +1 more source

A mosaic of microclimates: biodiversity outcomes and wildlife habitat potential in large‐scale solar facilities

open access: yesBiological Reviews, EarlyView.
ABSTRACT The rapid global expansion of photovoltaic (PV) solar facilities, now comprising nearly 80% of the recent and projected growth of renewable electricity, represents one of the most significant land‐use changes of the 21st century. While PV facilities are critical for decarbonising energy systems, their large spatial footprint and infrastructure
Tom Armstrong   +4 more
wiley   +1 more source

THE CONSISTENCY CONDITIONS FOR DENSITY LIMITS OF HYPOPLASTIC CONSTITUTIVE LAW

open access: yesTASK Quarterly, 2000
The so called phase diagram of grain skeletons illustrates the range of possible void ratios between the pressure dependent bounds ei and et. It can be shown that in the framework of the actual hypoplastic model these bounds can be surpassed by ...
ANDRZEJ NIEMUNIS   +2 more
doaj  

Goal Displacement and Goal Conflicts in Circular Innovation Initiatives: Types and Mitigation Practices

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Many firms set ambitious sustainability goals but these are frequently “displaced” by proxy goals that are easier to track and measure. However, the specific types of goal conflicts that follow from this displacement are poorly understood. We conducted a case study of circular innovation initiatives at a global MedTech company and identified ...
Wiebke Reim   +2 more
wiley   +1 more source

EXPANSION OF A CYLINDRICAL CAVITY IN SAND

open access: yesTASK Quarterly, 2000
The paper presents numerical solution to the problem of the symmetric quasi-static large-strain expansion of a cylindrical cavity in sand. The boundary value problem is solved with the use of a constitutive equation of hypoplasticity calibrated for a ...
VOLODIA A. OSINOV, ROBERTO CUDMANI
doaj  

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang   +2 more
wiley   +1 more source

Mechanisms of failure of jointed rock masses and the behaviour of steep slopes [PDF]

open access: yes, 1998
The geomorphological behaviour of steep jointed rock slopes has been studied using distinct element method computer models. In order to model steep slopes effectively, methodologies need to be combined from the studies of environmental modellers ...
Kimber, Owen Graham
core  

Rock exploration

open access: yes, 2019
This chapter introduces common methods of site investigation and discuss engineering issues related to different types of rock mass. Some sites may present geologic conditions where soil cover is either thin or absent and where observations of outcrops ...
Gratchev, Ivan, Ivan Gratchev
core   +1 more source

In-situ digital profiling of soil to rock strength from drilling process monitoring of 200 m deep drillhole in loess ground

open access: yes, 2021
Digital drilling process monitoring (DPM) technique is an in-situ technique that continuously records the digital data of drilling process parameters in real time.
WANG, X, Zhang, MS, Yue, QZQ
core   +1 more source

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