Dongkwon Han, Sunil Kwon^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.3, pp. 411-424, 2020, DOI:10.32604/fdmp.2020.08388

Abstract This paper presents the development and application of a production data analysis software that can analyze and forecast the production performance and reservoir properties of shale gas wells. The theories used in the study were based on the analytical and empirical approaches. Its reliability has been con- firmed through comparisons with a commercial software. Using transient data relating to multi-stage hydraulic fractured horizontal wells, it was confirmed that the accuracy of the modified hyperbolic method showed an error of approximately 4% compared to the actual estimated ultimate recovery (EUR). On the basis of the developed model, reliable productivity forecasts have… More >

Deyin Li^{1, 2}, Mingzhi Cheng³, Yu Yang^{1, 2, *}, Min Lei^{1, 2}, Linfeng Shen⁴

CMC-Computers, Materials & Continua, Vol.64, No.1, pp. 623-635, 2020, DOI:10.32604/cmc.2020.09800

Abstract Deep learning networks are widely used in various systems that require classification. However, deep learning networks are vulnerable to adversarial attacks. The study on adversarial attacks plays an important role in defense. Black-box attacks require less knowledge about target models than white-box attacks do, which means black-box attacks are easier to launch and more valuable. However, the state-of-arts black-box attacks still suffer in low success rates and large visual distances between generative adversarial images and original images. This paper proposes a kind of fast black-box attack based on the cross-correlation (FBACC) method. The attack is carried out in two stages.… More >

Nana Zhang¹, Kun Zhu¹, Shi Ying^{1, *}, Xu Wang²

CMC-Computers, Materials & Continua, Vol.64, No.1, pp. 471-499, 2020, DOI:10.32604/cmc.2020.010117

Abstract Software defect prediction is a research hotspot in the field of software engineering. However, due to the limitations of current machine learning algorithms, we can’t achieve good effect for defect prediction by only using machine learning algorithms. In previous studies, some researchers used extreme learning machine (ELM) to conduct defect prediction. However, the initial weights and biases of the ELM are determined randomly, which reduces the prediction performance of ELM. Motivated by the idea of search based software engineering, we propose a novel software defect prediction model named KAEA based on kernel principal component analysis (KPCA), adaptive genetic algorithm, extreme… More >

Katlyn Elizabeth McGrattan^1,2,3,4, Heather McGhee^2,3, Allan DeToma⁵, Elizabeth G. Hill⁵, Sinai C. Zyblewski⁶, Maureen Lefton-Greif^7,8,9, Lucinda Halstead^1,2, Scott M. Bradley¹⁰, Bonnie Martin-Harris^1,2,3,4

Congenital Heart Disease, Vol.12, No.3, pp. 382-388, 2017, DOI:10.1111/chd.12456

Abstract Background: Deficits in swallowing physiology are a leading morbidity for infants with functional single ventricles and systemic outflow tract obstruction following stage 1 palliation. Despite the high prevalence of this condition, the underlying deficits that cause this post-operative impairment remain poorly understood.
Objective: Identify the physiologic correlates of dysphagia in infants with functional single ventricles and systemic outflow tract obstruction following stage 1 palliative surgery.
Methods: Postoperative fiberoptic laryngoscopies and videofluoroscopic swallow studies (VFSS) were conducted sequentially on infants with functional single ventricles following stage 1 palliative surgery. Infants were dichotomized as having normal or impaired laryngeal function based on… More >

Kenan W.D. Stern^1,2, Kimberlee Gauvreau^1,2, Sitaram Emani^3,4, Tal Geva^1,2

Congenital Heart Disease, Vol.12, No.3, pp. 350-356, 2017, DOI:10.1111/chd.12450

Abstract Objective: Stage 1 Norwood palliation is one of the highest risk procedures in congenital cardiac surgery. Patients with superior technical performance scores have more favorable outcomes. Intraoperative epicardial echocardiography may allow the surgeon to address residual lesions prior to leaving the operating room, resulting in improved technical performance. The ability of intraoperative epicardial echocardiography to visualize the relevant anatomy and its association with outcomes is not known.
Design: A standardized intraoperative epicardial echocardiography protocol was developed and performed at the conclusion of Stage 1 Norwood palliation. Data pertaining to visualization of relevant anatomy, and comparison of intraoperative echocardiogram findings with… More >

Matthew W. Buelow^1,2, Nancy Rudd¹, Jena Tanem¹, Pippa Simpson³, Peter Bartz^1,2, Garick Hill⁴

Congenital Heart Disease, Vol.13, No.6, pp. 919-926, 2018, DOI:10.1111/chd.12655

Abstract Background: Single ventricle heart disease with aortic arch hypoplasia has high mor‐ bidity and mortality, with the greatest risk after stage 1 palliation. Residual lesions often require catheter‐based or surgical reintervention to minimize risk. We sought to describe the types, frequency, and risk factors for re‐intervention between stage 1 and stage 2 palliation, utilizing the National Pediatric Cardiology Quality Improvement Collaborative (NPC‐QIC) registry.
Methods: The NPC‐QIC registry, consisting of patients discharged after stage 1 pal‐ liation, was queried. Hybrid stage 1 palliation patients were excluded from this study. The primary risk factor was shunt type and the primary outcome was… More >

Janet M. Simsic, Christina Phelps, Kristin Kirchner, Kirby‐Rose Carpenito, Robin Allen, Holly Miller‐Tate, Karen Texter, Mark Galantowicz

Congenital Heart Disease, Vol.13, No.5, pp. 757-763, 2018, DOI:10.1111/chd.12649

Abstract Objective: Interstage readmissions are common in infants with single ventricle congenital heart disease undergoing staged surgical palliation. We retrospectively examined readmissions during the interstage period.
Design: Retrospective analysis.
Setting: The Heart Center at Nationwide Children’s Hospital, Columbus, Ohio.
Patients: Newborns undergoing hybrid stage 1 palliation from January 2012 to December 2016 who survived to hospital discharge and were followed at our institution.
Interventions: All patients underwent hybrid stage 1 palliation.
Outcome Measures: Outcomes included (1) reason for interstage readmission; (2) feeding modality during interstage period; (3) major interstage adverse events; and (4) interstage mortality.
Results: Study group comprised 57 patients.… More >

Doris P. Yimgang¹, John D. Sorkin², Charles F. Evans³, Danielle S. Abraham¹, Geoffrey L. Rosenthal^1,4

Congenital Heart Disease, Vol.13, No.4, pp. 533-540, 2018, DOI:10.1111/chd.12622

Abstract Introduction: Angiotensin converting enzyme inhibitors are commonly prescribed medications after the Norwood procedure. There are little data that can be used to determine if angiotensin converting enzyme inhibitors improve interstage outcomes in children with single ventricle defects. The objective of this study was to investigate the relationship between angiotensin converting enzyme inhibitors and interstage failure among infants born with hypoplastic left heart syndrome.
Methods: We conducted a retrospective cohort study using data from the National Pediatric Cardiology Quality Improvement Collaborative database (collected between 2008 and 2015). We used logistic regression models to assess the exposure-outcome associations and propensity score matching… More >

Parthak Prodhan¹, Xinyu Tang², Jeffrey Gossett², Brandon Beam³, Janet Simsic⁴, Nancy Ghanayem⁵, Nahed O. ElHassan⁶

Congenital Heart Disease, Vol.13, No.4, pp. 519-527, 2018, DOI:10.1111/chd.12610

Abstract Objective: Different feeding strategies have been suggested to improve growth and survival of infants with hypoplastic left heart syndrome following stage 1 palliation. The study objective was to assess hospital mortality following stage 1 palliation among infants with hypoplastic left heart syndrome who had two feeding modalities, gastrostomy tube vs no gastrostomy tube.
Design: Retrospective study design.
Setting: Multicenter pediatric heath information system database.
Patient: About 4287 patients with hypoplastic left heart syndrome who underwent stage 1 Norwood procedure from 2004 through 2013. Infants who had gastrostomy tube with or without fundoplication procedure were identified and their clinical characteristics were… More >

George F. Van Hare

Congenital Heart Disease, Vol.14, No.3, pp. 321-323, 2019, DOI:10.1111/chd.12760

Abstract This article has no abstract. More >