Huaying He^1,2, Zhiyong Lin^1,2, Yuelan Weng^1,2, Jianjie Zhou^1,2, Man Ye^1,2, Xiaowei Luo^1,2, Qifeng Zhao^1,2,*

Congenital Heart Disease, Vol.16, No.6, pp. 655-673, 2021, DOI:10.32604/CHD.2021.016054

Abstract Background: To achieve successful management of infants with congenital heart disease (CHD) together with pulmonary hypertension (PH), postoperative care, especially feeding care is vital in addition to surgery. Postoperative feeding is comprised of three stages: feeding in the intensive care unit, feeding in the general ward and family feeding, in which the general ward is considered as the “transitional stage”. At present, there is little research on the optimal mode of feeding care for the transitional stage, and there is no universally recognized and accepted protocol. Methods: We retrospectively analyzed 114 CHD infants with PH who underwent family-centered (FC) feeding… More >

Vin Cent Tai^1,*, Yong Chai Tan¹, Nor Faiza Abd Rahman¹, Yaw Yoong Sia², Chan Chin Wang², Lip Huat Saw³

Energy Engineering, Vol.118, No.4, pp. 1057-1068, 2021, DOI:10.32604/EE.2021.014866

Abstract Aircraft engine design is a complicated process, as it involves huge number of components. The design process begins with parametric cycle analysis. It is crucial to determine the optimum values of the cycle parameters that would give a robust design in the early phase of engine development, to shorten the design cycle for cost saving and man-hour reduction. To obtain a robust solution, optimisation program is often being executed more than once, especially in Reliability Based Design Optimisations (RBDO) with Monte-Carlo Simulation (MCS) scheme for complex systems which require thousands to millions of optimisation loops to be executed. This paper… More >

Kundan Kumar^*, Rajeev Arya

Computer Systems Science and Engineering, Vol.38, No.3, pp. 321-337, 2021, DOI:10.32604/csse.2021.016748

Abstract Great strides have been made to realistically deploy multiple Unmanned Aerial Vehicles (UAVs) within the commercial domain, which demands a proper coordination and reliable communication among the UAVs. UAVs suffer from limited time of flight. Conventional techniques suffer from high delay, low throughput, and early node death due to aerial topology of UAV networks. To deal with these issues, this paper proposes a UAV parameter vector which considers node energy, channel state information and mobility of UAVs. By intelligently estimating the proposed parameter, the state of UAV can be predicted closely. Accordingly, efficient clustering may be achieved by using suitable… More >

Junsung Park¹, Go Hun Seo², Yena Lee¹, Yunha Choi¹, Minji Kang³, Hyo-Sang Do³, Young-Hwue Kim⁴, Jeong Jin Yu⁴, Ellen Ai-Rhan Kim⁵, Euiseok Jung⁵, Byong Sop Lee⁵, Jae Suk Baek^4,#,*, Beom Hee Lee^1,6,#,*

Congenital Heart Disease, Vol.16, No.4, pp. 397-410, 2021, DOI:10.32604/CHD.2021.015167

Abstract Background and Method: The genetic cause of infantile-onset cardiomyopathy is rarely investigated. Here, we conducted whole exome sequencing (WES) and mitochondrial DNA (mtDNA) sequencing in eight patients with infantile-onset cardiomyopathy to identify genetic variations. Result: Among these patients, two (25%) had dilated cardiomyopathy (DCMP), two (25%) had left ventricular non-compaction (LVNC), and four (50%) had hypertrophic cardiomyopathy (HCMP). Except four patients identified prenatally, the remaining patients presented at a median age of 85.5 days. WES identified genetic variants in a total of seven (87.5%) patients and mtDNA sequencing in the other case. TPM1 and MYH7 variants were identified in the… More >

Muhammad Asghar Khan^1,*, Fazal Noor², Insaf Ullah³, Sajjad ur Rehman⁴, Shibli Nisar⁵, Mohaira Ahmad⁵

Computer Systems Science and Engineering, Vol.38, No.1, pp. 47-63, 2021, DOI:10.32604/csse.2021.016430

Abstract The Flying Ad-hoc Networks (FANETs) is characterized by the transition from a single large Unmanned Aerial Vehicle (UAV) to multiple small UAVs connected in an ad-hoc fashion. Since high mobility is the core feature of such networks, they are prone to route breaks within the links. The issue of connectivity loss can be coped with, to some extent, by making use of omnidirectional antennas. Such modification, however, curtails Quality-of-Service (QoS) requirements of networks in terms of bandwidth, media access delay, coverage and others. Alternately, directional antennas have advantages over omnidirectional antennas such as improved transmission range, spatial reuse and high… More >

Ruikun Zou¹, Yifei Wang^1,*, Chengcheng Pang², Yunxia Sun¹, Chen Chen¹, Jian Zhuang³

Congenital Heart Disease, Vol.16, No.2, pp. 159-170, 2021, DOI:10.32604/CHD.2021.015050

Abstract Aim: To determine the profiles of clinical features including four-limb blood pressure (BP), saturations of peripheral oxygen (SpO₂), and echocardiographic features in infants with coarctation of aorta (CoA) to facilitate congenital heart diseases screening. Methods: The charts of infants with CoA were retrospectively reviewed. All in-hospital infants suspected of congenital heart diseases by clinical teams were prospectively measured of four limbs BPs and SpO₂ in a regional cardiac transferring center during 2013 and 2019. Echocardiography as a gold standard test was followed within 2 days after suspicion. All infants were divided into non-significant CoA group or significant CoA group based… More >

Christopher M. Day^1,*, Neda Mulla², Timothy Martens³, Brent M. Gordon²

Congenital Heart Disease, Vol.16, No.2, pp. 183-187, 2021, DOI:10.32604/CHD.2021.014337

Abstract Marfan syndrome patients have connective tissue abnormalities that predispose them to intracardiac defects and postoperative complications. We present a case of late onset ASD device failure secondary to device movement within the atrial septum in a girl with Marfan syndrome. This case study suggests that further studies are necessary to determine the optimal device and approach for ASD repair in this patient cohort. More >

Shahzad Hameed¹, Qurratul-Ain Minhas¹, Sheeraz Ahmed², Shabana Habib⁴, Mohammad Kamrul Hasan³, Muhammad Islam⁵, Sheroz Khan^5,*

CMC-Computers, Materials & Continua, Vol.67, No.2, pp. 2527-2546, 2021, DOI:10.32604/cmc.2021.013896

Abstract Flying ad hoc networks (FANETs) present a challenging environment due to the dynamic and highly mobile nature of the network. Dynamic network topology and uncertain node mobility structure of FANETs do not aim to consider only one path transmission. Several different techniques are adopted to address the issues arising in FANETs, from game theory to clustering to channel estimation and other statistical schemes. These approaches mostly employ traditional concepts for problem solutions. One of the novel approaches that provide simpler solutions to more complex problems is to use biologically inspired schemes. Several Nature-inspired schemes address cooperation and alliance which can… More >

Ali Safari Variani¹, Masoumeh Ghorbanide¹, Sajad Zare², Saeid Ahmadi^1,*, Zahra Hashemi³

Sound & Vibration, Vol.55, No.1, pp. 31-41, 2021, DOI:10.32604/sv.2021.08930

Abstract Acoustic performance of dissipative silencer was evaluated to determine the effectiveness of perforated duct porosity and absorbent material density in reducing occupational noise exposure propagated from centrifugal fan. Design charts were applied to predict noise reduction and length of a dissipative silencer. Dissipative silencers with various punched duct porosity (14%, 30% and 40%) and sound absorbent density (80 Kg/m³, 120 Kg/m³, and 140 Kg/m³) were designed and fabricated. According to ISO9612 and ISO11820, noise level was measured before and after installing all nine test silencers at fixed workstations around the discharge side of a centrifugal fan in a manufacturing plant.… More >

Gustaf Tanghöj^1,*, Anna Lindam², Petru Liuba^3,4, Gunnar Sjöberg⁵, Estelle Naumburg¹

Congenital Heart Disease, Vol.15, No.5, pp. 287-299, 2020, DOI:10.32604/CHD.2020.011977

Abstract Objective: Secundum atrial septal defect (ASD II) is a common congenital heart defect, and interatrial communications among preterm children is even more common. The objective of this study was to calculate the incidence of ASD II in children, with assessment to gestational age at birth. Further, to assess maternal, prenatal and postnatal risk factors associated with ASD II among children of different gestational age at birth. Design: This national registry based retrospective incidence study was supplemented with a national case-control study, using the Swedish Register of Congenial Heart Disease, Swedish Medical Birth Register and Statistics Sweden. All children, 0–18 years… More >