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Spatial Probabilistic Model of block failure Capacity of Piles in Clay

Journal of Civil Engineering and Architecture 2016年第11期10卷 1220-1225页

作者： IndraDjati Sidi Department of Civil Engineering lnstitut Teknologi Bandung Bandung 40132 Indonesia

A probability based model of block failure capacity of pile foundation in clay soil under axial load is developed. The model was based on the first order second moment method. Instead of using point variability, the soil inherent variability is modelled as random field model. Based on this model, a reliability based factor of safety for designing pile group foundation, taking into account bock failure mechanism, is proposed. Furthermore, using simplified lognormal model, the relationship between the factor of safety used in design practice and target reliability may be derived explicitly.

关键词： block failure soil variability random field model error reliability index.

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Regional anesthesia for orthopedic procedures:What orthopedic surgeons need to know

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World Journal of Orthopedics 2022年第1期13卷 11-35页

作者： Ihab Kamel Muhammad F Ahmed Anish Sethi Department of Anesthesiology Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPA 19140United States

Regional anesthesia is an integral component of successful orthopedic *** anesthesia is commonly used for surgical anesthesia while peripheral nerve blocks are often used for postoperative *** evaluation for regional anesthesia should include neurological,pulmonary,cardiovascular,and hematological *** blocks include spinal,epidural,and combined spinal *** extremity peripheral nerve blocks include interscalene,supraclavicular,infraclavicular,and *** extremity peripheral nerve blocks include femoral nerve block,saphenous nerve block,sciatic nerve block,iPACK block,ankle block and lumbar plexus *** choice of regional anesthesia is a unanimous decision made by the surgeon,the anesthesiologist,and the patient based on a risk-benefit *** choice of the regional block depends on patient cooperation,patient positing,operative structures,operative manipulation,tourniquet use and the impact of postoperative motor blockade on initiation of physical *** anesthesia is safe but has an inherent risk of failure and a relatively low incidence of complications such as local anesthetic systemic toxicity(LAST),nerve injury,falls,hematoma,infection and allergic *** should be used for regional anesthesia procedures to improve the efficacy and minimize *** treatment guidelines and rescue medications(intralipid)should be readily available during the regional anesthesia administration.

关键词： Orthopedic surgery Regional anesthesia Spinal Epidural Combined spinal epidural Peripheral nerve blocks Neuraxial blocks Upper extremity Lower extremity Interscalene Supraclavicular Infraclavicular Axillary Femoral Fascia iliaca Popliteal Sciatic Saphenous Adductor canal Lumbar plexus Brachial plexus Ankle iPACK Complication Local anesthetic systemic toxicity Nerve injury block failure Continuous nerve block catheters

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