The bottleneck in the preparation of supercapacitors is how to develop high-energy and high-power-density devices by using appropriate materials. Herein, a novel NiCo-B/GO heterostructure material was synthesized through a simple ultrasonic and precipitation method. The prepared NiCo-B/GO heterostructure exhibits significant improvements in supercapacitor performance than NiCo-B.
View Article and Find Full Text PDFUnlabelled: This study investigated the efficacy of ivabradine monotherapy in pediatric patients with focal atrial tachycardia (FAT). We prospectively enrolled 12 pediatric patients (7.5 ± 4.
View Article and Find Full Text PDFNot all stents are suitable for children. For instance, premounted stents can be used in infants and small children but cannot dilate with age to accommodate adult-sized pulmonary arteries. Conversely, the Pul-Stent adapts to somatic growth.
View Article and Find Full Text PDFFront Cardiovasc Med
August 2022
Background: Scimitar syndrome is a rare congenital cardiovascular malformation; its optimal management remains controversial. This study aims to present the clinical experience of this disease in our center.
Methods: We undertook a retrospective review of 34 patients with Scimitar syndrome documented at our institution between January 2013 and December 2018.
Background: Few data on paediatric hypertrophic cardiomyopathy (HCM) are available in developing countries. A multicentre, retrospective, cohort study was conducted to profile the clinical characteristics and survival of children with HCM in China.
Methods: We collected longitudinal data on children with HCM aged 0-18 years at three participating institutions between January 1, 2010 and December 31, 2019.
The advancement of Industry 4.0 and Industrial Internet of Things (IIoT) has laid more emphasis on reducing the parameter amount and storage space of the model in addition to the automatic and accurate fault diagnosis. In this case, this paper proposes a lightweight convolutional neural network (LCNN) method for intelligent fault diagnosis of rotating machinery, which can largely satisfy the need of less parameter amount and storage space as well as high accuracy.
View Article and Find Full Text PDFPercutaneous coronary intervention for stenosis of coronary artery after Kawasaki disease presents various challenges. The diameters of reference vessels and femoral artery in children are smaller, and the morphological changes are different from adults. Herein, we describe our successful experience with a severe coronary artery stenosis at the proximal portion of left anterior descending treated with drug-coated balloon dilation.
View Article and Find Full Text PDFDistinguishing the types of partial discharge (PD) caused by different insulation defects in gas-insulated switchgear (GIS) is a great challenge in the power industry, and improving the recognition accuracy of the relevant models is one of the key problems. In this paper, a convolutional neural network and long short-term memory (CNN-LSTM) model is proposed, which can effectively extract and utilize the spatiotemporal characteristics of PD input signals. First, the spatial characteristics of higher-level PD signals can be obtained through the CNN network, but because CNN is a deep feedforward neural network, it does not have the ability to process time-series data.
View Article and Find Full Text PDFA porcelain insulator is an important part to ensure that the insulation requirements of power equipment can be met. Under the influence of their structure, porcelain insulators are prone to mechanical damage and cracks, which will reduce their insulation performance. After a long-term operation, crack expansion will eventually lead to breakdown and safety hazards.
View Article and Find Full Text PDFIntroduction: Long QT syndrome (LQTS) is a congenital disorder characterized by a prolongation of the QT interval on electrocardiograms (ECGs) and a propensity to ventricular tachyarrhythmias, which may lead to syncope, cardiac arrest, or sudden death. T-wave alternans (TWA) refers to the periodic beat-to-beat alternation of T-wave shape, polarity and amplitude on surface ECG during regular heart rhythm. In this report, a case of long QT syndrome with KCNQ1 gene mutation induced TWA in the head-up tilt test (HUTT), which has not been reported yet.
View Article and Find Full Text PDFAims: We sought to understand the clinical course and molecular defects of infantile-onset Pompe disease (IOPD) among mainland Chinese patients.
Materials And Methods: Twenty-five Chinese patients with IOPD were enrolled and clinical data were retrospectively reviewed. The entire coding region of the GAA gene was amplified by polymerase chain reaction and analyzed by direct sequencing.
Background: Barth syndrome (BTHS) is a rare X-linked recessive disease characterized by cardiomyopathy, neutropenia, skeletal myopathy and growth delay. Early diagnosis and appropriate treatment may improve the prognosis of this disease. The purpose of this study is to determine the role of targeted next-generation sequencing (NGS) in the early diagnosis of BTHS in children with cardiomyopathy.
View Article and Find Full Text PDFDanon disease is an X-linked disorder with the clinical triad of cardiomyopathy, skeletal myopathy, and mental retardation. Early diagnosis of this disease remains a challenge, especially in the pediatric population. In this study, we developed a targeted panel-based next generation sequencing pipeline to identify mutations by sequencing of selected candidate genes in 136 pediatric patients with either hypertrophic cardiomyopathy (HC) or idiopathic dilated cardiomyopathy (IDC).
View Article and Find Full Text PDFBackground: Open cardiac surgery has traditionally been the gold standard for repair of ventricular septal defect (VSD). The inherent risks and complications associated with open surgery and the incidence of postoperative residual VSD are significant disadvantages of the open surgical approach.
Objective: To evaluate the methodology and efficacy of transcatheter closure of postoperative residual VSD in children.
Unlabelled: Congenital extrahepatic portosystemic shunt (CEPS) is a rare malformation of the mesenteric vasculature, which may lead to severe complications. In this report, we describe a case series of three children with type II CEPS (presenting as hypoxemia) and hepatopulmonary syndrome (HPS). The first patient was a 4-year-old male who did not receive any specific treatment and subsequently died of brain abscess 5 years after the diagnosis.
View Article and Find Full Text PDFObjective: The Pul-stent is a new cobalt alloys stent, specially licensed for pulmonary artery stenosis. The aim of this study was to investigate the value of the stent implantation as the treatment of postoperative pulmonary artery stenosis.
Method: Clinical practice was carried out to evaluate effectiveness, safety and maneuverability of Pul-stent in the defined clinical setting.
Objective: Branch pulmonary artery stenosis is one of the common congenital heart disease. Stent implantation to relieve branch pulmonary artery stenosis (BPAS) is an alternative to failed surgical or balloon angioplasty. The aim of this study was to explore the indication, methods and complications of using balloon expandable stent placement to treat branch pulmonary artery stenosis, and evaluate the results of stent implantation in the treatment of branch pulmonary artery stenosis.
View Article and Find Full Text PDFZhonghua Er Ke Za Zhi
February 2013
Objective: To evaluate the indications, methodology and results of the transcatheter closure of patent ductus arteriosus (PDA) with the new Amplatzer Duct Occluder II (ADO-II).
Method: Totally 51 patients underwent transcatheter closure of PDA with the new ADO-II. The devices were delivered by 4F or 5F sheath through arterial or venous side respectively.
Zhonghua Xin Xue Guan Bing Za Zhi
October 2012
Objectives: To evaluate the feasibility and efficacy of transcatheter closure of perimembranous ventricular septal defects (pmVSD) with aneurysmatic formation and muscular ventricular septal defects (mVSD) with Amplatzer duct occluder II.
Methods: This retrospective analysis included 48 cases received transcatheter closure of pmVSD aneurysmatic formation or mVSD from February 2011 to March 2012 in our hospital (42 pmVSD with aneurysmatic formation and 6 mVSD). Median age was 5.
The aim of this study was to investigate the degree of myocardial injury following catheter radiofrequency (RF) ablation (RFA) or cryoablation and its clinical significance in children and patients with congenital heart disease. Cardiac troponin T (cTnT) or cardiac troponin I (cTnI), creatine kinase (CK), and its cardiac isoenzyme MB (CK-MB) were measured in 269 patients who underwent catheter ablation (216 RFA, 53 cryoablation) just before the procedure and again 6 hours after the end of the procedure. Follow-up studies included echocardiography and 12 lead electrocardiographics (ECGs).
View Article and Find Full Text PDF