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Article ; Online: Saturation-Tolerant Prescribed Control for a Class of MIMO Nonlinear Systems.

Ji, Ruihang / Yang, Baoqing / Ma, Jie / Ge, Shuzhi Sam

IEEE transactions on cybernetics

2022 Volume 52, Issue 12, Page(s) 13012–13026

Abstract: This article proposes a saturation-tolerant prescribed control (SPC) for a class of multiinput and multioutput (MIMO) nonlinear systems simultaneously considering user-specified performance, unmeasurable system states, and actuator faults. To simplify ... ...

Abstract	This article proposes a saturation-tolerant prescribed control (SPC) for a class of multiinput and multioutput (MIMO) nonlinear systems simultaneously considering user-specified performance, unmeasurable system states, and actuator faults. To simplify the control design and decrease the conservatism, tunnel prescribed performance (TPP) is proposed not only with concise form but also smaller overshoot performance. By introducing non-negative modified signals into TPP as saturation-tolerant prescribed performance (SPP), we propose SPC to guarantee tracking errors not to violate SPP constraints despite the existence of saturation and actuator faults. Namely, SPP possesses the ability of enlarging or recovering the performance boundaries flexibly when saturations occur or disappear with the help of these non-negative signals. A novel auxiliary system is then constructed for these signals, which bridges the associations between input saturation errors and performance constraints. Considering nonlinearities and uncertainties in systems, a fuzzy state observer is utilized to approximate the unmeasurable system states under saturations and unknown actuator faults. Dynamic surface control is employed to avoid tedious computations incurred by the backstepping procedures. Furthermore, the closed-loop state errors are guaranteed to a small neighborhood around the equilibrium in finite time and evolved within SPP constraints although input saturations and actuator faults occur. Finally, comparative simulations are presented to demonstrate the feasibility and effectiveness of the proposed control scheme.
MeSH term(s)	Nonlinear Dynamics ; Neural Networks, Computer ; Computer Simulation
Language	English
Publishing date	2022-11-18
Publishing country	United States
Document type	Journal Article
ISSN	2168-2275
ISSN (online)	2168-2275
DOI	10.1109/TCYB.2021.3096939
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Article ; Online: Enhanced β‐glucosidase in Western flower thrips affects its interaction with the redox‐based strategies of kidney beans under elevated CO2

Liu, Xiaowei / Wang, Yanhui / Liu, Hui / Huang, Xinyi / Qian, Lei / Yang, Baoqing / Xu, Yujing / Chen, Fajun

Plant, Cell & Environment. 2023 Mar., v. 46, no. 3 p.918-930

2023

Abstract: β‐Glucosidase is validated as an elicitor for early immune responses in plants and it was detected in the salivary glands of Frankliniella occidentalis in previous research. Seven differentially expressed genes encoding β‐glucosidase were obtained by ... ...

Abstract	β‐Glucosidase is validated as an elicitor for early immune responses in plants and it was detected in the salivary glands of Frankliniella occidentalis in previous research. Seven differentially expressed genes encoding β‐glucosidase were obtained by comparing the transcriptomes of F. occidentalis adults grown under two different CO₂ concentrations (800 vs. 400 ppm), which might be associated with the differences in the interaction between F. occidentalis adults and its host plant, Phaseolus vulgaris under different CO₂ levels. To verify this speculation, changes in defense responses based on the production and elimination of reactive oxygen species (ROS) in P. vulgaris leaves treated with three levels of β‐glucosidase activity under ambient CO₂ (aCO₂) and elevated CO₂ (eCO₂) were measured in this study. According to the results, significantly higher levels of ROS were noticed under eCO₂ compared to aCO₂, which was caused by the increased β‐glucosidase activity in thrips due to increased cellulose content in P. vulgaris leaves under eCO₂. Together with the lower activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) in injured leaves under eCO₂, P. vulgaris leaves would be negatively affected on redox‐based defense by eCO₂, thus facilitating thrips damage under climate change.
Keywords	Frankliniella occidentalis ; Phaseolus vulgaris ; carbon dioxide ; carbon dioxide enrichment ; catalase ; cellulose ; climate change ; elicitors ; environment ; gene expression regulation ; host plants ; kidneys ; peroxidase ; reactive oxygen species ; superoxide dismutase ; transcriptome
Language	English
Dates of publication	2023-03
Size	p. 918-930.
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	391893-2
ISSN	1365-3040 ; 0140-7791
ISSN (online)	1365-3040
ISSN	0140-7791
DOI	10.1111/pce.14534
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Article ; Online: Enhanced β-glucosidase in Western flower thrips affects its interaction with the redox-based strategies of kidney beans under elevated CO

Liu, Xiaowei / Wang, Yanhui / Liu, Hui / Huang, Xinyi / Qian, Lei / Yang, Baoqing / Xu, Yujing / Chen, Fajun

Plant, cell & environment

2023 Volume 46, Issue 3, Page(s) 918–930

Abstract: β-Glucosidase is validated as an elicitor for early immune responses in plants and it was detected in the salivary glands of Frankliniella occidentalis in previous research. Seven differentially expressed genes encoding β-glucosidase were obtained by ... ...

Abstract	β-Glucosidase is validated as an elicitor for early immune responses in plants and it was detected in the salivary glands of Frankliniella occidentalis in previous research. Seven differentially expressed genes encoding β-glucosidase were obtained by comparing the transcriptomes of F. occidentalis adults grown under two different CO
MeSH term(s)	Animals ; Thysanoptera ; Phaseolus/genetics ; Carbon Dioxide ; Reactive Oxygen Species ; Flowers ; Oxidation-Reduction ; Cellulases
Chemical Substances	Carbon Dioxide (142M471B3J) ; Reactive Oxygen Species ; Cellulases (EC 3.2.1.-)
Language	English
Publishing date	2023-01-09
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	391893-2
ISSN	1365-3040 ; 0140-7791
ISSN (online)	1365-3040
ISSN	0140-7791
DOI	10.1111/pce.14534
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Article: Monthly and Interannual Variations in Winter Positive Surface‐Bottom Temperature Difference in Northeastern Coastal Waters of the Shandong Peninsula in the Yellow Sea

Zhai, Fangguo / Liu, Zizhou / Li, Peiliang / Gu, Yanzhen / Hu, Luoyu / Sun, Liyuan / Yang, Baoqing

Journal of geophysical research. 2021 Nov., v. 126, no. 11

2021

Abstract: Traditionally, the Yellow Sea (YS) is believed to be well mixed throughout the water column or to experience significant temperature inversions in winter. Recently, we found a significant positive surface‐bottom temperature difference (SBTD) as large as ... ...

Abstract	Traditionally, the Yellow Sea (YS) is believed to be well mixed throughout the water column or to experience significant temperature inversions in winter. Recently, we found a significant positive surface‐bottom temperature difference (SBTD) as large as 3.7°C in northeastern coastal waters of the Shandong Peninsula in the YS in winter. By analyzing 4 years (June 2016–September 2020) of online in situ observations, this study examined monthly and interannual variations in winter positive SBTD and the underlying dynamics. The winter positive SBTD generally formed in November, peaked in December/January, and disappeared in March. At the interannual time scale, this SBTD was strongest in 2018 and weakest in 2020. The underlying dynamics involved the combined effects of prevailing winter monsoon winds and resultant surface heat loss and current heat advection. When the surface northerly wind was strong, strengthened southward advection of cold air over the ocean cooled the water column intensely, whereas wind‐enhanced southward advection of warm surface water partly offset the sea surface cooling and resulted in surface temperature cooling that was considerably slower than bottom temperature or even surface temperature warming. These processes together generated strong positive SBTDs. When the surface northerly wind was weak, all of the above processes became weak and resulted in weak positive SBTDs. The relationship with Yellow River runoff was also discussed. This study enriches our knowledge of winter thermal structure in the YS. More observations and coupled physical‐biogeochemical simulations are needed to further clarify the impacts on climate and marine ecology.
Keywords	advection ; air ; climate ; cold ; cooling ; geophysics ; heat ; marine science ; monsoon season ; research ; runoff ; surface temperature ; surface water ; wind direction ; winter ; China ; Yellow River ; Yellow Sea
Language	English
Dates of publication	2021-11
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	161667-5
ISSN	2169-9291 ; 2169-9275 ; 0148-0227 ; 0196-2256
ISSN (online)	2169-9291
ISSN	2169-9275 ; 0148-0227 ; 0196-2256
DOI	10.1029/2021JC017562
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Article ; Online: Risk factors for poor outcomes of spontaneous supratentorial cerebral hemorrhage after surgery.

Zhang, Kangwei / Wei, Lai / Zhou, Xiang / Yang, Baoqing / Meng, Jinxi / Wang, Peijun

Journal of neurology

2021 Volume 269, Issue 6, Page(s) 3015–3025

Abstract: Objective: This study aimed to explore the factors affecting the outcomes of spontaneous supratentorial cerebral hemorrhage 90 days after surgery.: Methods: A total of 256 patients with spontaneous supratentorial intracerebral hemorrhage underwent ... ...

Abstract	Objective: This study aimed to explore the factors affecting the outcomes of spontaneous supratentorial cerebral hemorrhage 90 days after surgery. Methods: A total of 256 patients with spontaneous supratentorial intracerebral hemorrhage underwent craniotomy evacuation of hematoma. The control group included 120 patients who received conservative treatment. The patients were divided into two subgroups based on a bifurcation of the modified Rankin Scale (mRS) 90 days after clinical therapeutics: good outcome (mRS score 0-3) and poor outcome (mRS score 4-6). The differences in clinical and imaging data between the two subgroups were analyzed. Based on difference analysis results, a binary logistic regression model was constructed to analyze the influencing factors related to poor outcomes. Results: The difference analysis results in the surgery group showed statistically significant differences in age, sex, Glasgow Coma Score (GCS) on admission, coronary atherosclerosis, smoking, stroke history, blood glucose, D-dimer, hematoma size, deep cerebral hemorrhage, midline shift, hematoma burst into the ventricle, vortex sign, island sign, and black hole sign. Binary logistic regression analysis showed that deep cerebral hemorrhage, midline shift, and age > 58 years independently correlated with the poor outcomes of patients after surgery. The binary logistic regression results of the control group showed that age > 58 years and GCS ≤ 8 independently correlated with the poor outcomes of patients. Conclusions: Deep cerebral hemorrhage, midline shift, and age > 58 years significantly increased the risk of adverse prognosis in patients after surgery. The findings might help select the clinical treatment plan and evaluate the postoperative prognosis of patients.
MeSH term(s)	Cerebral Hemorrhage/complications ; Cerebral Hemorrhage/diagnostic imaging ; Cerebral Hemorrhage/surgery ; Glasgow Coma Scale ; Hematoma/etiology ; Humans ; Middle Aged ; Retrospective Studies ; Risk Factors ; Treatment Outcome
Language	English
Publishing date	2021-11-17
Publishing country	Germany
Document type	Journal Article
ZDB-ID	187050-6
ISSN	1432-1459 ; 0340-5354 ; 0012-1037 ; 0939-1517 ; 1619-800X
ISSN (online)	1432-1459
ISSN	0340-5354 ; 0012-1037 ; 0939-1517 ; 1619-800X
DOI	10.1007/s00415-021-10888-w
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Article: [Common Walking Fault of Multileaf Collimator in Linear Accelerator].

Liang, Jiayi / Yang, Baoqing / Wei, Liangpeng / Liu, Jufang

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

2018 Volume 42, Issue 1, Page(s) 77–78

Abstract: This paper introduces the failure phenomenon, failure analysis, maintenance process and method of SIEMENS PRIMUS linear accelerator. ...

Abstract	This paper introduces the failure phenomenon, failure analysis, maintenance process and method of SIEMENS PRIMUS linear accelerator.
MeSH term(s)	Particle Accelerators ; Radiotherapy Dosage
Language	Chinese
Publishing date	2018-06-04
Publishing country	China
Document type	Journal Article
ISSN	1671-7104
ISSN	1671-7104
DOI	10.3969/j.issn.1671-7104.2018.01.022
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Article: Outcome Prediction of Spontaneous Supratentorial Intracerebral Hemorrhage after Surgical Treatment Based on Non-Contrast Computed Tomography: A Multicenter Study.

Zhang, Kangwei / Zhou, Xiang / Xi, Qian / Wang, Xinyun / Yang, Baoqing / Meng, Jinxi / Liu, Ming / Dong, Ningxin / Wu, Xiaofen / Song, Tao / Wei, Lai / Wang, Peijun

Journal of clinical medicine

2023 Volume 12, Issue 4

Abstract: This study aims to explore the value of a machine learning (ML) model based on radiomics features and clinical features in predicting the outcome of spontaneous supratentorial intracerebral hemorrhage (sICH) 90 days after surgery. A total of 348 patients ...

Abstract	This study aims to explore the value of a machine learning (ML) model based on radiomics features and clinical features in predicting the outcome of spontaneous supratentorial intracerebral hemorrhage (sICH) 90 days after surgery. A total of 348 patients with sICH underwent craniotomy evacuation of hematoma from three medical centers. One hundred and eight radiomics features were extracted from sICH lesions on baseline CT. Radiomics features were screened using 12 feature selection algorithms. Clinical features included age, gender, admission Glasgow Coma Scale (GCS), intraventricular hemorrhage (IVH), midline shift (MLS), and deep ICH. Nine ML models were constructed based on clinical feature, and clinical features + radiomics features, respectively. Grid search was performed on different combinations of feature selection and ML model for parameter tuning. The averaged receiver operating characteristics (ROC) area under curve (AUC) was calculated and the model with the largest AUC was selected. It was then tested using multicenter data. The combination of lasso regression feature selection and logistic regression model based on clinical features + radiomics features had the best performance (AUC: 0.87). The best model predicted an AUC of 0.85 (95%CI, 0.75-0.94) on the internal test set and 0.81 (95%CI, 0.64-0.99) and 0.83 (95%CI, 0.68-0.97) on the two external test sets, respectively. Twenty-two radiomics features were selected by lasso regression. The second-order feature gray level non-uniformity normalized was the most important radiomics feature. Age is the feature with the greatest contribution to prediction. The combination of clinical features and radiomics features using logistic regression models can improve the outcome prediction of patients with sICH 90 days after surgery.
Language	English
Publishing date	2023-02-16
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662592-1
ISSN	2077-0383
ISSN	2077-0383
DOI	10.3390/jcm12041580
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Article: [Expression of nm23 genes in acute myeloid leukemia and its clinical significance].

Meng, Qing-xiang / Jiang, Rong / Yang, Bao-qing / Zhang, Hong-yu / Liu, Jin / Pang, Li-ping / Wang, Jun

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi

2003 Volume 24, Issue 7, Page(s) 369–371

Abstract: Objective: To explore nm23 gene mRNA expression and its clinical significance in acute leukemias (AML).: Methods: The levels of nm23-H1 and nm23-H2 transcripts in 22 patients with acute myeloid leukemia (AML), 9 AML in complete remission (AML-CR), 12 ...

Abstract	Objective: To explore nm23 gene mRNA expression and its clinical significance in acute leukemias (AML). Methods: The levels of nm23-H1 and nm23-H2 transcripts in 22 patients with acute myeloid leukemia (AML), 9 AML in complete remission (AML-CR), 12 acute lymphoblastic leukemia (ALL) and 4 chronic myeloid leukemia in chronic phase (CML-CP) were assayed by reverse transcriptase-polymerase chain reaction (RT-PCR). Results: The expression of nm23-H1 in AL especially in AML-M4 and AML-M5 was significantly higher than that in normal blood cells. An analysis of correlation between nm23 expression and clinicopathological parameters showed that increased nm23-H1 mRNA levels were associated with some poor-prognostic factors such as extramedullary infiltration, high white blood cell count (WBC), high lactate dehydrogenase (LDH) activity and high CD(7) expression, while inversely correlated with t(8; 21) and t(15; 17) which had a good-prognostic effect. The expression of nm23-H1 in AML patients in CR was significantly decreased compared with those untreated. Conclusion: nm23-H1 was overexpressed in AL, especially in AML-M4 and AML-M5. High expression of nm23-H1 may be a poor prognostic factor.
MeSH term(s)	Adult ; Female ; Gene Expression ; Humans ; Leukemia, Myeloid, Acute/genetics ; Leukemia, Myeloid, Acute/pathology ; Male ; Middle Aged ; NM23 Nucleoside Diphosphate Kinases ; Nucleoside-Diphosphate Kinase/genetics ; RNA, Messenger/genetics ; Reverse Transcriptase Polymerase Chain Reaction
Chemical Substances	NM23 Nucleoside Diphosphate Kinases ; RNA, Messenger ; NME1 protein, human (EC 2.7.4.6) ; Nucleoside-Diphosphate Kinase (EC 2.7.4.6)
Language	Chinese
Publishing date	2003-07
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	0253-2727
ISSN	0253-2727
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