Porencephaly was observed in a female cynomolgus monkey (Macaca fascicularis) aged 5 years and 7 months. The cerebral hemisphere exhibited diffuse brownish excavation with partial defects of the full thickness of the hemispheric wall, and it constituted open channels between the lateral ventricular system and arachnoid space. In addition, the bilateral occipital lobe was slightly atrophied. His...

During a typical excavation operation, there is a high risk of inadvertently damaging the existing subsurface utilities. Such incidents cause significant financial loss to the project and can delay or abruptly halt ongoing construction. In many cases, they also pose a life threat and often result in accidental deaths. As a result, constructors are required to protect utility systems during exca...

The Matakaoa Debris Flow (MDF) is a 200-km-long mass-transport deposit resulting from the failure of the Matakaoa continental margin, northeast New Zealand, ca. 38–100 ky ago. In this study, high-quality bathymetric and seismic reflection data are used to identify the morpho-structural characters that reflect the kinematics of the MDF, as well as its interactions with basin sediments. We demons...

Based on the FLAC3D numerical software, a roadway excavation and support model was established. The stability of surrounding rock FRP bolt force characteristics in Yuhuasi mining area Jinshandian Iron Mine were analyzed. distribution law plastic zone simulated, deformation simulated. data for 6 months tested site, weak links determined, optimized. Parameters, optimized effect is better, which p...

Like the Sanxingdui ruins, the Jinsha ruins are an important archaeological site in the Chengdu Plain. Excavation of these ruins may offer important evidence for the origins and evolution of the ancient Shu civilization. In order to protect historical relics during excavation, it is necessary to use INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS VOL. 6, NO. 2, APRIL 2013 Submitt...

A model for probabilistic assessment of excavation performance of tunnel projects is presented. The model is based on Dynamic Bayesian Networks (DBN) and enables to consider the quality of the design and construction process. It is applied on a case study, the excavation of a road tunnel by means of the New Austrian Tunnelling Method. The influence of main model parameters and assumptions (e.g....

The paper presents chosen results of research on the lumbar-chest part of spine and the spine-fixator complex. Spines were gathered from cadavers. Both damaged and undamaged spines with and without fixator were investigated. Two types of fixator were used: a CD and a modified Zespol fixator (our idea)--marked as P. In the research, compression/distraction forces were applied. The analysis is ba...

Taking the “11.28” rockburst occurred in Jinping II Hydropower Station as engineering background, evolution mechanism of structure-type was studied detail based on particle flow code. The results indicate that failure includes a tensile fracture induced by tangential compressive stress and shear caused due to overburdened loadings slip structural plane. In addition, it is found differences betw...