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Trace Ammonia Detection Based on Near-Infrared Fiber-Optic Cantilever-Enhanced Photoacoustic Spectroscopy

A trace ammonia (NH3) detection system based on the near-infrared fiber-optic cantilever-enhanced photoacoustic spectroscopy (CEPAS) is proposed. A fiber-optic extrinsic Fabry-Perot interferometer (EFPI) based cantilever microphone has been designed to detect the photoacoustic pressure signal. The microphone has many advantages, such as small size and high sensitivity. A near...

Guest Editorial: Special Issue on Machine Learning Implementations

. Guest editors Heikki Huttunen Ke Chen Zhaoxiang Zhang Notes Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations

A Novel Diffeomorphic Model for Image Registration and Its Algorithm

, . . . , (−r1r61−6−1)12 )T and [d2φ(r)]ii = (ri −1)4 φ3, dφ(r) = ( (r−1 −2r11)3 , . . . , (r−162−r116)3 )T and Hence, we can get d3 in (38) and Hˆ3 in (40). Ke Chen received his B.Sc., M.Sc., and Ph.D. degrees in

A novel TIRADS of US classification

Thyroid imaging reporting and data system (TIRADS) is the assessment of a risk stratification of thyroid nodules, usually using a score. However, there is no consensus as to the version of TIRADS for reporting the results of thyroid ultrasound in clinic. The objective of this study is to develop a practical TIRADS with which to categorize thyroid nodules and stratify their...

Expanding laparoscopic pancreaticoduodenectomy to pancreatic-head and periampullary malignancy: major findings based on systematic review and meta-analysis

Laparoscopic pancreaticoduodenectomy (LPD) remains to be established as a safe and effective alternative to open pancreaticoduodenectomy (OPD) for pancreatic-head and periampullary malignancy. The purpose of this meta-analysis was to compare LPD with OPD for these malignancies regarding short-term surgical and long-term survival outcomes. A literature search was conducted before...

Overexpression of Cyclooxygenase-2 in Noncancerous Liver Tissue Increases the Postoperative Recurrence of Hepatocellular Carcinoma in Patients with Hepatitis B Virus-Related Cirrhosis

BACKGROUND: Many previous studies have evaluated the histopathological features of tumours as risk factors for postoperative recurrence in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC). However, there have been few large studies investigating the relationship between cyclooxygenase-2 (COX-2) expression in non-cancerous regions of the liver and postoperative...

NSiteMatch: Prediction of Binding Sites of Nucleotides by Identifying the Structure Similarity of Local Surface Patches

, Tianjin Polytechnic University, Tianjin 300387, China Correspondence should be addressed to Ke Chen; moc.qq@430412091 Received 4 April 2017; Accepted 14 June 2017; Published 25 July 2017 Academic Editor ... : John Mitchell Copyright © 2017 Jie Sun and Ke Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

NSiteMatch: Prediction of Binding Sites of Nucleotides by Identifying the Structure Similarity of Local Surface Patches

, Tianjin Polytechnic University, Tianjin 300387, China Correspondence should be addressed to Ke Chen; moc.qq@430412091 Received 4 April 2017; Accepted 14 June 2017; Published 25 July 2017 Academic Editor ... : John Mitchell Copyright © 2017 Jie Sun and Ke Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

NSiteMatch: Prediction of Binding Sites of Nucleotides by Identifying the Structure Similarity of Local Surface Patches

, Tianjin Polytechnic University, Tianjin 300387, China Correspondence should be addressed to Ke Chen; moc.qq@430412091 Received 4 April 2017; Accepted 14 June 2017; Published 25 July 2017 Academic Editor ... : John Mitchell Copyright © 2017 Jie Sun and Ke Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

Overexpression of Cyclooxygenase-2 in Noncancerous Liver Tissue Increases the Postoperative Recurrence of Hepatocellular Carcinoma in Patients with Hepatitis B Virus-Related Cirrhosis

BACKGROUND: Many previous studies have evaluated the histopathological features of tumours as risk factors for postoperative recurrence in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC). However, there have been few large studies investigating the relationship between cyclooxygenase-2 (COX-2) expression in non-cancerous regions of the liver and postoperative...

Laparoscopic versus Open Surgery for Hepatocellular Carcinoma: A Meta-Analysis of High-Quality Case-Matched Studies

; Published 1 March 2018 Academic Editor: Kevork M. Peltekian Copyright © 2018 Ke Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits ... declare that they have no conflicts of interest. Authors’ Contributions Ke Chen designed the study; Yu Pan and Xiao-long Liu collected literature and conducted the analysis of pooled data; Hendi Maher

Laparoscopic versus Open Surgery for Hepatocellular Carcinoma: A Meta-Analysis of High-Quality Case-Matched Studies

; Published 1 March 2018 Academic Editor: Kevork M. Peltekian Copyright © 2018 Ke Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits ... declare that they have no conflicts of interest. Authors’ Contributions Ke Chen designed the study; Yu Pan and Xiao-long Liu collected literature and conducted the analysis of pooled data; Hendi Maher

The Developmental Process of the Growing Motile Ciliary Tip Region

AffiliationsWadsworth Center, New York State Department of Health, Albany, NY, 12201, USAMatthew J. Reynolds, Tanaporn Phetruen, Rebecca L. Fisher, Ke Chen, Brian T. Pentecost & Haixin SuiBiology Department, University ... Search for Tanaporn Phetruen in:Nature Research journals • PubMed • Google Scholar Search for Rebecca L. Fisher in:Nature Research journals • PubMed • Google Scholar Search for Ke Chen in:Nature Research

The coordinating evaluation and spatial correlation analysis of CSGC: A case study of Henan province, China

This study investigates the basic characteristics and proposes a concept for the complex system of geographical conditions (CSGC). By analyzing the DPSIR model and its correlation with the index system, we selected indexes for geographical conditions according to the resources, ecology, environment, economy and society parameters to build a system. This system consists of four...

Amorphous Silicon Nanowires Grown on Silicon Oxide Film by Annealing

In this paper, amorphous silicon nanowires (α-SiNWs) were synthesized on (100) Si substrate with silicon oxide film by Cu catalyst-driven solid-liquid-solid mechanism (SLS) during annealing process (1080 °C for 30 min under Ar/H2 atmosphere). Micro size Cu pattern fabrication decided whether α-SiNWs can grow or not. Meanwhile, those micro size Cu patterns also controlled the...

Research and Design of Fixed Photovoltaic Support Structure Based on SAP2000

In the solar photovoltaic power station project, PV support is one of the main structures, and fixed photovoltaic PV support is one of the most commonly used stents. For the the actual demand in a Japanese photovoltaic power, SAP2000 finite element analysis software is used in this paper, based on Japanese Industrial Standard (JIS C 8955-2011), describing the system of fixed...

Working memory operates over the same representations as attention

A recent study observed a working memory (WM) Stroop effect with a magnitude equivalent to that of the classic Stroop effect, indicating that WM operates over the same representations as attention. However, more research is needed to examine this proposal. One unanswered question is whether the WM Stroop effect occurs when the WM item and the perceptual task do not have an...

Resveratrol Inhibits ROS-Promoted Activation and Glycolysis of Pancreatic Stellate Cells via Suppression of miR-21

Cheng, Zhengdong Jiang, and Ke Chen helped design the experiments and analyze the data. Cancan Zhou, Liankang Sun, Junyu Cao, Weikun Qian, Jie Li, Tao Shan, and Jianjun Lei contributed to the conception

A brain-inspired SLAM system based on ORB features

Research Article Special Issue on Human-inspired Computing Manuscript received December A Brain-inspired SLAM System Based on ORB Features Sun-Chun Zhou 0 Rui Yan 0 Jia-Xin Li 0 Ying-Ke Chen 0

Resveratrol-Induced Downregulation of NAF-1 Enhances the Sensitivity of Pancreatic Cancer Cells to Gemcitabine via the ROS/Nrf2 Signaling Pathways

NAF-1 (nutrient-deprivation autophagy factor-1), which is an outer mitochondrial membrane protein, is known to play important roles in calcium metabolism, antiapoptosis, and antiautophagy. Resveratrol, a natural polyphenolic compound, is considered as a potent anticancer agent. Nevertheless, the molecular mechanisms underlying the effects of resveratrol and NAF-1 and their...