Non-uniform Weighted Vibration Target Positioning Algorithm Based on Sensor Reliability

Yanli Chu,Yuyao He,Junfeng Chen,Qiwu Wu 한국정보처리학회 2023 Journal of information processing systems Vol.19 No.4

In the positioning algorithm of two-dimensional planar sensor array, the estimation error of time difference-ofarrival(TDOA) algorithm is difficult to avoid. Thus, how to achieve accurate positioning is a key problem ofthe positioning technology based on planar array. In this paper, a method of sensor reliability discrimination isproposed, which is the foundation for selecting positioning sensors with small error and excellent performance,simplifying algorithm, and improving positioning accuracy. Then, a positioning model is established. Theestimation characteristics of the least square method are fully utilized to calculate and fuse the positioningresults, and the non-uniform weighting method is used to correct the weighting factors. It effectively handlesthe decreased positioning accuracy due to measurement errors, and ensures that the algorithm performance isimproved significantly. Finally, the characteristics of the improved algorithm are compared with those of otheralgorithms. The experiment data demonstrate that the algorithm is better than the standard least square methodand can improve the positioning accuracy effectively, which is suitable for vibration detection with large noiseinterference.

Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode

Yan, Kai,Lee, Hyun-Wook,Gao, Teng,Zheng, Guangyuan,Yao, Hongbin,Wang, Haotian,Lu, Zhenda,Zhou, Yu,Liang, Zheng,Liu, Zhongfan,Chu, Steven,Cui, Yi American Chemical Society 2014 NANO LETTERS Vol.14 No.10

<P>Stable cycling of lithium metal anode is challenging due to the dendritic lithium formation and high chemical reactivity of lithium with electrolyte and nearly all the materials. Here, we demonstrate a promising novel electrode design by growing two-dimensional (2D) atomic crystal layers including hexagonal boron nitride (h-BN) and graphene directly on Cu metal current collectors. Lithium ions were able to penetrate through the point and line defects of the 2D layers during the electrochemical deposition, leading to sandwiched lithium metal between ultrathin 2D layers and Cu. The 2D layers afford an excellent interfacial protection of Li metal due to their remarkable chemical stability as well as mechanical strength and flexibility, resulting from the strong intralayer bonds and ultrathin thickness. Smooth Li metal deposition without dendritic and mossy Li formation was realized. We showed stable cycling over 50 cycles with Coulombic efficiency ∼97% in organic carbonate electrolyte with current density and areal capacity up to the practical value of 2.0 mA/cm<SUP>2</SUP>and 5.0 mAh/cm<SUP>2</SUP>, respectively, which is a significant improvement over the unprotected electrodes in the same electrolyte.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2014/nalefd.2014.14.issue-10/nl503125u/production/images/medium/nl-2014-03125u_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl503125u'>ACS Electronic Supporting Info</A></P>

Abnormal Condition Identification for the Electro-fused Magnesia Smelting Process Based on Condition-relevant Information

Yan Liu,Fuli Wang,Yulu Xiong,Zhenyu Liu,Ruicheng Ma,Fei Chu 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.3

To improve the accuracy of feature representation and abnormal condition identification, a new abnormal condition identification method, named integrating multiple binary neural networks based on condition-relevantinformation (CRI-MBNN), is presented for the electro-fused magnesia smelting process in this study. Firstly, thefeatures related to each specific abnormal condition, which is named condition-relevant information (CRI), are analyzed and extracted from the multi-source heterogeneous information with the help of limited and consensus domainknowledge. Then, the CRI is fused at the feature-level to provide a comprehensive representation of each abnormalcondition. Furthermore, for each abnormal condition, a binary neural network (BNN) is established based on thefused feature. They are further integrated according to the frequency of each condition in the actual productionprocess to form the final abnormal condition identification network, i.e., CRI-MBNN. Finally, the effectiveness andfeasibility of the proposed CRI-MBNN are verified by the electro-fused magnesia smelting process.

Decoupling Control Strategy of Alkali Recovery Furnace

Yan Li,Xuanzi Chu,Qingyu Dai 한국펄프·종이공학회 2021 펄프.종이기술 Vol.53 No.4

Effects of graded levels of cupric citrate on growth performance, antioxidant status, serum lipid metabolites and immunity, and tissue residues of trace elements in weaned pigs

Chu Cai Peng,Jia You Yan,Bin Dong,Lin Zhu,Yao Yao Tian,Li Min Gong 아세아·태평양축산학회 2017 Animal Bioscience Vol.30 No.4

Objective: The goal of this study was to investigate the effects of cupric citrate (CuCit) on growth performance, antioxidant indices, serum lipid metabolites, serum immune indices, and tissue residues of copper (Cu), zinc, and iron in weaned pigs. Methods: A total of 180 weaned pigs (Duroc×Landrace×Large White) with an average body weight of 8.98±1.21 kg were randomly assigned to a corn-soybean meal control ration, or 4 similar rations with 30, 60, 120, or 240 mg/kg Cu as CuCit. All diets contained 10 mg/kg Cu as cupric sulfate from the vitamin-mineral premix. The experiment was divided into two phases: 0 to 14 d (phase 1) and 15 to 28 d (phase 2). Results: Average daily gain (ADG; linearly, p<0.01) and average daily feed intake (ADFI; linearly and quadratically, p<0.05) were affected by an increase in CuCit during phase 2. Overall period, ADG (p<0.05) and ADFI (p<0.01) were linearly increased with increasing dietary levels of CuCit. Serum malondialdehyde concentrations (p<0.05) and glutathione peroxidase activity (p<0.01) linearly decreased and increased respectively with an increase in CuCit. Serum levels of Cu-Zn superoxide dismutase were linearly affected with an increase in CuCit (p<0.01). Hepatic malondialdehyde levels decreased with an increase in CuCit (linearly and quadratically, p<0.01). Serum total cholesterol concentrations were quadratically affected (p<0.05) and decreased in pigs fed Cu as CuCit at 60 and 120 mg/kg and increased in pigs fed 240 mg/kg Cu as CuCit. Serum high-density lipoprotein concentrations were linearly affected with an increase in CuCit (p<0.01). Serum IL-1β levels were quadratically affected (p<0.05) by dietary treatment. Compared with other treatments, 240 mg/kg Cu from CuCit quadratically increased hepatic (p<0.01) and renal (p<0.05) Cu concentrations, and quadratically decreased hepatic and renal iron concentrations (p<0.05). Conclusion: Cu administered in the form of CuCit at a dosage range of 30 to 60 mg/kg, effectively enhanced the growth performance and antioxidant status of weaned pigs.

Living Donor Liver Transplant Confers Better Survival for Elderly Recipients

( Chu Kevin Ka-wan ),( Chok Kenneth Siu-ho ),( Fung James Yan-yue ),( Chan Albert Chi-yan ),( Lo Chung Mau ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Increasing elderly patients are undergoing liver transplant as well as the relative percentage of elderly population. However, the perceived poor outcomes in the elderly prohibits the acceptance of living donor liver transplant in many centres. We reviewed current status of liver transplant in our centre and analyzed factors predicting survival outcome in elderly liver transplant recipients. Methods: Consecutive liver transplants for elderlies who reached age 65 performed between 2001 and 2016 were reviewed. The overall survival were compared between the deceased donor liver transplant (DDLT) and the living donor liver transplant (LDLT) groups. Results: DDLT and LDLT groups consisted of 24 and 17 recipients respectively. The overall 1-year and 3-year survival rates for the elderlies (n=41) were 87%, 78% respectively. LDLT recipients had better survival compared with DDLT, 94% vs 83% for 1-year and 94% vs 67% for 3-year, p=0.036. Univariate analysis was performed and identified predictive factors including pre-operative ICU stay (relative risk 3.74, 95% confidence interval 1.06-13.14, p=0.039), pre-operative hepatorenal syndrome (relative risk 6.01, 95% confidence interval 1.67-21.68, p=0.006) and mode of graft donation - LDLT (relative risk 0.09, 95% confidence interval 0.01-0.86, p=0.036). Long cold ischaemic time also had a negative correlation with survival (relative risk 4.30, 95% confidence interval 0.81-22.90, p=0.087). In multi multivariate analysis, LDLT (hazard ratio 0.11, 95% confidence interval 0.01-0.94, p=0.043) and pre-operative ICU stay (hazard ratio 5.60, 95% confidence interval 1.30-24.03, p=0.021) were independent predictive factors for survival. Conclusions: Good survival outcomes was achieved in selected elderly liver transplant recipients. Elderly recipients with living donors had better survival outcomes in contrast to those with deceased donors and LDLT was an independent protective factor for long term survival. Pre-operative ICU status was also an independent predictive of poorer long term survival.

Aeromicrobium halotolerans sp. nov., isolated from desert soil sample

Yan, Zheng-Fei,Lin, Pei,Chu, Xiao,Kook, MooChang,Li, Chang-Tian,Yi, Tae-Hoo Springer-Verlag 2016 Archives of microbiology Vol.198 No.5

<P>A Gram-positive, aerobic, and non-motile, rod-shaped actinomycete strain, designated YIM Y47(T), was isolated from soils collected from Turpan desert, China, and subjected to a polyphasic taxonomic study. Phylogenetic analysis indicated that strain YIM Y47(T) belonged to the genus Aeromicrobium. YIM Y47(T) shared highest 16S rRNA gene sequence similarities with Aeromicrobium massiliense JC14(T) (96.47 %). Growth occurs at 20-45 A degrees C (optimum at 30 A degrees C), pH 6.0-8.0 (optimum at pH 7.0), and salinities of 0-7.0 % NaCl (optimum at 4.0 %). The strain YIM Y47(T) exhibits chemotaxonomic features with menaquinone-7 (MK-7) as the predominant quinone, C-16:0, C-18:1 omega 9c and 10-methyl C-18:0 (> 10 %) as major fatty acids. The cell-wall peptidoglycan of strain YIM Y47(T) contained ll-diaminopimelic acid as the diagnostic diamino acid. The polar lipids were found to consist of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, and unknown phospholipids. The G+C content of the genomic DNA of strain YIM Y47(T) was found to be 44.7 mol%. On the basis of phylogenetic analyses and phenotypic data, it is proposed that strain YIM Y47(T) should be classified as representing a novel species of the genus Aeromicrobium, with the name Aeromicrobium halotolerans sp. nov. The type strain is YIM Y47(T) (=KCTC 39113(T)=CGMCC 1.15063(T)=DSM 29939(T)=JCM 30627(T)).</P>

A Novel Role of Classical Swine Fever Virus E(rns) Glycoprotein in Counteracting the Newcastle Disease Virus (NDV)-mediated IFN-β Induction

( Yan Hua Xia ),( Liu Chen ),( Zi Shu Pan ),( Chu Yu Zhang ) 생화학분자생물학회 2007 BMB Reports Vol.40 No.5

Toxoplasma gondii induces autophagy and apoptosis in human umbilical cord mesenchymal stem cells via downregulation of Mcl−1

Chu, Jia-Qi,Jing, Kai-Peng,Gao, Xiang,Li, Peng,Huang, Rui,Niu, Yan-Ru,Yan, Shou-Quan,Kong, Jun-Chao,Yu, Cai-Yuan,Shi, Ge,Fan, Yi-Ming,Lee, Young-Ha,Zhou, Yu,Quan, Juan-Hua Landes Bioscience 2017 Cell Cycle Vol.16 No.5

<P>Autophagy and apoptosis are critical for controlling Toxoplasma gondii (T. gondii) infection. T. gondii infection during pregnancy can damage the fetus and cause birth defects; however, the molecular mechanisms of this process are poorly understood. This study aims to determine the activities of autophagy and apoptosis as well as their regulatory mechanisms during T. gondii infection by using human umbilical cord mesenchymal stem cells (hUC-MSCs) as a model of congenital diseases. LC3B, a hallmark protein of autophagy was incrementally upregulated with the infection duration, whereas p62 was downregulated in T. gondii-infected hUC-MSCs. Concurrent to this result, the invasion of T. gondii into hUC-MSCs increased in a time-dependent manner. The expression levels of Bcl-2 family proteins including Bcl-2, Bcl-xL, Bim, Bax, Bid and Bak were not altered; however, Mcl-1 levels in hUC-MSCs were dramatically decreased upon T. gondii infection. In addition, at 24h post-infection, cleaved PARP and cleaved caspase-3 protein levels were elevated in hUC-MSCs. Importantly, Mcl-1 overexpression reduced the levels of autophagy- and apoptosis-related proteins in T. gondii-infected hUC-MSCs. Mcl-1 proteins were primarily expressed in the fraction containing mitochondria and strongly interacted with Beclin-1 under normal conditions; however, these interactions were remarkably attenuated by T. gondii infection. These results suggest that mitochondrial Mcl-1 is an essential signaling mediator regulating the activation of autophagy and apoptosis during T. gondii infection.</P>

The Implementation of Sanitary Ware Subsequent Water Simulation Test System

Chu Yan,Cai Xin-yuan,Feng Xiao-ming,Tang Kang,Sun Nai-hua 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.7