Thermal Error Prediction and Compensation of Digital Twin Laser Cutting Based on T-XGBoost.

Laser cutting belongs to non-contact processing, which is different from traditional turning and milling. In order to improve the machining accuracy of laser cutting, a thermal error prediction and dynamic compensation strategy for laser cutting is proposed. Based on the time-varying characteristics of the digital twin technology, a hybrid model combining the thermal elastic-plastic finite element (TEP-FEM) and T-XGBoost algorithms is established.

Extracorporeal Carbon Dioxide Removal in Patients with Acute Respiratory Distress Syndrome or Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis.

Background: Extracorporeal carbon dioxide removal (ECCO2R) was used to prevent invasive mechanical ventilation and associated mechanical damage in patients with acute respiratory distress syndrome (ARDS).

Objectives: This study aimed to investigate the efficacy and safety of ECCO2R treatment in patients with ARDS or chronic obstructive pulmonary disease (COPD).

Methods: MEDLINE, EMBASE, and the Cochrane Library were systematically searched for relevant studies that reported patient prognosis, blood gas parameters, and ECCO2R-related adverse events (AEs) published as of September 2020.

Hyperoxygenated Hydrogen-Rich Solution Suppresses Lung Injury Induced by Hemorrhagic Shock in Rats.

Background: Hemorrhagic shock could induce acute lung injury (ALI), which is associated with cell hypoxia, lung tissue inflammation, free radical damage, and excessive cell apoptosis. Our previous studies demonstrated that hyperoxygenated solution could alleviate cell hypoxia. Furthermore, hydrogen-rich solution (HS) could relieve lung tissue inflammation, free radical damage and excessive cell apoptosis.

The neuroprotective effect of hyperoxygenate hydrogen-rich saline on CO-induced brain injury in rats.

This study was designed to investigate the neuroprotective effect of hyperoxygenate hydrogen-rich saline (HOHS) against brain injury induced by carbon monoxide (CO) poisoning in rats. A rat model of CO poisoning was established by administering CO via intraperitoneal injection to male Sprague-Dawley rats. Forty-eight adult male rats were randomly divided into the following groups: normal control group (NG), CO poisoning group (CO), HOS treatment group (hyperoxygenated solution, HOS) and HOHS treatment group (HOHS).

Enteral nutrition feeding in Chinese intensive care units: a cross-sectional study involving 116 hospitals.

Background: There is a lack of large-scale epidemiological data on the clinical practice of enteral nutrition (EN) feeding in China. This study aimed to provide such data on Chinese hospitals and to investigate factors associated with EN delivery.

Methods: This cross-sectional study was launched in 118 intensive care units (ICUs) of 116 mainland hospitals and conducted on April 26, 2017.

Hyperoxygenated hydrogen-rich solution suppresses shock- and resuscitation-induced liver injury.

Background: It is not known whether simultaneous delivery of hydrogen and oxygen can reduce injury caused by hemorrhagic shock and resuscitation (HSR). This study investigated the therapeutic potential of hyperoxygenated hydrogen-rich solution (HHOS), a combined hydrogen/oxygen carrier, in a rat model of HSR-induced liver injury.

Materials And Methods: Rats (n = 60) were randomly divided into 5 groups (n = 6 per group at each time point).

PirB Overexpression Exacerbates Neuronal Apoptosis by Inhibiting TrkB and mTOR Phosphorylation After Oxygen and Glucose Deprivation Injury.

Previous studies have proven that paired immunoglobulin-like receptor B (PirB) plays a crucial suppressant role in neurite outgrowth and neuronal plasticity after central nervous system injury. However, the role of PirB in neuronal survival after cerebral ischemic injury and its mechanisms remains unclear. In the present study, the role of PirB is investigated in the survival and apoptosis of cerebral cortical neurons in cultured primary after oxygen and glucose deprivation (OGD)-induced injury.

Successful treatment of a severely injured victim from 8.12 Tianjin Port Explosion, China.

A male patient, 55 years old, was found from a container yard 65 h later following a chemical warehouse explosion in Tianjin, China on August 12, 2015. He was about 50 m away from the explosion center. He was subjected to compound multiple trauma, multi-viscera function damage, multiple fractures, hemothorax, traumatic wet lung, respiratory failure I, hypovolemic shock and impaired liver and kidney functions.

Potential use of hyperoxygenated solution as a treatment strategy for carbon monoxide poisoning.

Aim: Carbon monoxide (CO) poisoning can cause permanent damage in tissues that are sensitive to hypoxia. We explored the feasibility and efficacy of using a hyperoxygenated solution (HOS) to treat severe acute CO poisoning in an animal model.

Methods: Male Sprague-Dawley rats were subjected to CO poisoning.

Cationic amylose-encapsulated bovine hemoglobin as a nanosized oxygen carrier.

Nanosized hemoglobin-based oxygen carriers are one of the most promising blood substitutes. In the present study, a comprehensive strategy for the preparation of nanosized cationic amylose-encapsulated hemoglobins (NCAHbs) was developed. First, cationic amylase (CA) was synthesized from amylose and quaternary ammonium salt by an etherification reaction.