Improve the impact property in a novel butt joint of Ti/Al dissimilar metals.

The dissimilar metal welding joint is connected by the metallurgical bond of intermetallic compounds at the interface, which easily causes stress concentration at the interface and cracks continuously along the interface, resulting in low reliability in impact environments. A novel multi-layer plug and bolt connection for TC4/7A52 dissimilar metal butt joints is proposed in this manuscript and analyzes the influence mechanism of the structural design on impact toughness. The impact toughness of the Ti/Al composite butt joint is 30.

Design and Effect of Resonant Ultrasonic Vibration-Assisted Laser Cladding (R-UVALC) on AlCrFeMnNi High-Entropy Alloy.

The design of the resonant ultrasonic vibration-assisted laser cladding (R-UVALC) setup involved employing finite element analysis (FEA) to simulate the ultrasonic transducer, horn, and workpiece in a resonance state. The impact of R-UVALC on AlCrFeMnNi high-entropy alloys was assessed using various ultrasonic vibration amplitudes of 0, 5, 10, and 15 µm, with a constant frequency of 20 kHz. Ultrasonic vibrations reduced pores and cracks and increased the clad breadth, melt pool wetting angle, and laser-clad layer consistency.

A prediction model for osteonecrosis of femoral head after internal fixation with multiple cannulated compression screws for adult femoral neck fractures.

Objectives: This study aims to investigate the high-risk factors for osteonecrosis of the femoral head (ONFH) after internal fixation with multiple cannulated compression screws for adult femoral neck fractures and to construct a prediction model.

Patients And Methods: Between from January 2012 and December 2020, a total of 268 patients (138 males, 130 females; mean age: 53±10 years; range, 23 to 70 years) with ONFH who had complete follow-up data were included. Closed reduction in combination with open reduction were performed.

Optical detection using CRISPR-Cas12a of Helicobacter pylori for veterinary applications.

Helicobacter pylori (H. pylori) is a zoonotic gastric microorganism capable of efficient interspecies transmission. Domesticated companion animals, particularly dogs and cats, serve as natural reservoirs for H.

Identification of a novel cell cycle-related risk signature predicting prognosis in patients with pancreatic adenocarcinoma.

Background: Growing evidence have indicated that cell cycle-related genes (CRGs) play an essential role in the progression of pancreatic adenocarcinoma (PAAD). Nevertheless, the application of CRGs in estimating the prognosis of PAAD patients is still lacking. This study aimed to establish a risk signature based on CRGs that can predict patients' overall survival for PAAD.

SEEM: A Sequence Entropy Energy-Based Model for Pedestrian Trajectory All-Then-One Prediction.

Predicting the future trajectories of pedestrians is of increasing importance for many applications such as autonomous driving and social robots. Nevertheless, current trajectory prediction models suffer from limitations such as lack of diversity in candidate trajectories, poor accuracy, and instability. In this paper, we propose a novel Sequence Entropy Energy-based Model named SEEM, which consists of a generator network and an energy network.

Incidence and Predictive Factors of Tibial Fracture with Occult Posterior Ankle Fractures.

Background: Few studies exist on the predictive factors of tibial fractures with hidden posterior ankle fractures.

Objective: To study the incidence and predictive factors of tibial fractures with occult posterior ankle fractures.

Methods: Tibial fracture patients were prospectively selected who were admitted to our hospital from January 2016 to May 2021 and their general clinical data, X-ray images, CT images, and other imaging data were collected and then divided them into posterior malleolus fracture group and nonposterior malleolus fracture group according to the presence or absence of posterior malleolus fractures.

The efficacy of intra-articular fentanyl supplementation for knee arthroscopy: A meta-analysis of randomized controlled studies.

Introduction: The efficacy of intra-articular fentanyl supplementation for pain control after knee arthroscopy remains controversial. We conduct a systematic review and meta-analysis to explore the influence of intra-articular fentanyl supplementation for pain intensity after arthroscopic knee surgery.

Methods: We searched PubMed, EMbase, Web of Science, EBSCO, and Cochrane Library databases through May 2019 for randomized controlled trials (RCTs) assessing the efficacy and safety of intra-articular fentanyl supplementation for arthroscopic knee surgery.

Double simultaneous intussusception caused by Meckel's diverticulum and intestinal duplication in a child.

Intussusception is common in children. Double simultaneous intussusception is a peculiar variety of intussusception with only 14 previously reported cases. We report a unique case of a child who suffered from double simultaneous intussusception with two lead points (Meckel's diverticulum and intestinal duplication).

Serum IL-6, IL-23 profile and Treg/Th17 peripheral cell populations in pediatric patients with inflammatory bowel disease.

IL-6 and IL-23 are both pleiotropic cytokines involved in the regulation of the immune response, inflammation, and hematopoeisis. They also could mediate effector cells and tolerance mediated by cells with regulatory function. Inflammatory bowel disease (IBD) is associated with a reduced ratio of Treg cells ato Th17 effector cells in peripheral blood and is characterised by a pro-inflammatory cytokine microenvironment which supports the continued generation of Th17 cells.

Treating idiopathic hypertrophic pyloric stenosis with sequential therapy: A clinical study.

Aim: The aim of this study was to explore the efficacy and safety of treating idiopathic hypertrophic pyloric stenosis with sequential therapy (ST).

Methods: From January 2010 to June 2013, 49 children with idiopathic hypertrophic pyloric stenosis were divided into two groups to accept either atropine ST (ST group, n = 26) or laparoscopic surgery (operation group, n = 23). The remission rate of vomiting, complications, hospital stay and medical expenditure were compared between the two groups.