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8th International Conference on Computing and Artificial Intelligence, ICCAI 2022

作者： tang, Changjiang Wu, Qiang Li, xuwen Liu, Jie Faculty of Information Technology Beijing University of Technology China

ISBN: (纸本)9781450396110

This paper designs a Signal Source Board based on PXIe standard. The Signal Source Board adopts XCKU060-2FFVA1157I of Xilinx company as the main control chip of the FPGA, AD9144 of ADI company as the DAC, the Host Computer sends the analog signal waveform code table to be generated to the Signal Source Board through the PCIe Bus, and then the FPGA of the Source Board based sends the analog signal waveform code table to two pieces of AD9144 through the JESD204B interface. Finally, the generated analog signal is filtered through the low-pass filter HMC1023, and completes the output of 8-channel analog signal. It achieves the high-quality generation of any modulated signal from baseband to mid-frequency, and meets the synchronous output requirements of 8-channel analog signal. © 2022 ACM.

关键词： Field programmable gate arrays (FPGA)

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PtCo with oxidase-like activity and laccase for synergistic catalytic degradation of phthalic acid esters

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JOURNAL OF CLEANER PRODUCTION 2024年 470卷

作者： Zhao, Xuqiang tang, Lei Chen, xuwen Wang, Jian Gao, Yanzheng Nanjing Agr Univ Coll Resources & Environm Sci Inst Organ Contaminant Control & Soil Remediat Nanjing 210095 Jiangsu Peoples R China

Phthalic acid esters (PAEs) as common plasticizers, providing convenience to humans. However, they also present a potential threat to ecosystems and human health as emerging contaminants. In this study, co- immobilization of nanozyme (PtCo) and laccase (Lac) into dendritic mesoporous silica (DMSN) constitutes nanomaterials (Lac@PtCo@DMSN). PtCo with an atomic ratio of 3:1 has the highest oxidizing activity. DMSN exhibited a maximum Lac loading capacity of 365 mg/g and activity of Lac@PtCo@DMSN exhibits excellent pH, temperature, and storage stability and reusability, and demonstrated greater recoverability. Remarkably, Lac@PtCo@DMSN (50 mg) achieved 81.83% degradation of total PAEs within 72 h and maintained 72.44% degradation of dimethyl phthalate (DMP) in the fifth cycle. Electron transfer between Pt, Co and adsorbed oxygen (O-2ads) in PtCo can generate center dot OH and center dot O-2(-), which were the dominant reactants for PAEs degradation. center dot OH could degrade PAEs to phthalic acid via H-abstration and center dot OH addition. center dot OH effectively enhanced Lac activity, and promoted the synergistic catalytic performance of nanozymes and natural enzymes. The degradation of phthalic acid by Lac accelerated the release of PtCo@DMSN reaction sites, resulting in significantly enhanced PAEs degradation. Thus, artificial/natural enzymes can degrade PAEs without exogenous additives to solve the limitation of Lac application, providing a new strategy for degrading contaminants in water.

关键词： Phthalic acid esters Nanozyme Laccase (Lac) Reactive oxygen species (ROS) Dendritic mesoporous silica

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黄芪四君子汤联合西医常规疗法治疗妊娠期糖尿病

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国际中医中药杂志 2019年第1期41卷 23-26页

作者：汤栩文秦庆新广州市妇女儿童医疗中心产科 510180

目的评价黄芪四君子汤结合西医常规疗法治疗妊娠期糖尿病(gestational diabetes mellitus,GDM)的疗效。方法将符合入选标准的103例GDM患者采用随机数字表法分为对照组51例、治疗组52例。对照组采用GDM规范化治疗,治疗组在对照组基础上... 详细信息

目的评价黄芪四君子汤结合西医常规疗法治疗妊娠期糖尿病(gestational diabetes mellitus,GDM)的疗效。方法将符合入选标准的103例GDM患者采用随机数字表法分为对照组51例、治疗组52例。对照组采用GDM规范化治疗,治疗组在对照组基础上加服黄芪四君子汤。2组均治疗14 d。采用ELISA法检测血清CRP和脂联素,采用全自动生化分析仪检测Mg2+;观察治疗前后血清FPG、2 hPG、HbA1c水平,记录妊娠结局与不良反应。结果治疗组总有效率为90.4%(47/52)、对照组为70.6%(36/51),2组比较差异有统计学意义(χ^2=6.449,P=0.011)。治疗后,治疗组血清FPG、2 hPG、HbAlc水平低于对照组(t值分别为7.352、17.962、9.713,P值均<0.01);CRP水平低于对照组(t=9.275,P<0.01),Mg^2+、脂联素水平高于对照组(t值分别为4.206、6.021,P值均<0.01)。治疗后,治疗组流产、巨大胎儿、剖宫产、羊水过多的发生率均小于对照组(χ2值分别为5.358、7.262、3.992、6.116,P值均<0.05)。结论黄芪四君子汤结合西医常规疗法可明显改善GDM患者的血糖水平,降低妊娠不良结局的发生率,提高临床疗效。

关键词：糖尿病,妊娠黄芪四君子汤脂联素妊娠结局药物相关副作用及不良反应

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A method of dynamic union control for intelligent mould bed system in ship block building

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SHIPS AND OFFSHORE STRUCTURES 2022年第8期17卷 1755-1763页

作者： Wang, Zhen Jing, xuwen Cai, Youhui Liu, Jinfeng Zhu, Tianhu Zhou, Honggen tang, Mingming Li, Lei Li, Chunjin Dong, Lei Jiangsu Univ Sci & Technol Sch Mech Engn Zhenjiang 212003 Jiangsu Peoples R China Univ Chinese Acad Sci Shenyang Inst Comp Technol Beijing Peoples R China

Mould bed is the most important equipment to control the deformation in the process of block construction. However, its height needs to be controlled separately based on the known height, and it affects the construction precision of block severely. Therefore, a dynamic union control method is proposed in this paper. Firstly, in order to realize the union control of mould bed system, the distribution types of mould bed system are defined, and a dynamic relationship is established, the determination algorithm number, position and height compensation layer number is proposed. Secondly, the fuzzy PID control based on neural network is used to realize the adaptive control of height according to the changes of pressure, so as to control the construction quality better of block. Thirdly, the MATLAB/Simulink module is used to verify the proposed method and shows that the response time is significantly shortened by 41% and 37.5% respectively.

关键词： Ship block construction dynamic control intelligence mould bed fuzzy neural network PID

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Prolonged QTc interval predicts long-term mortality in cirrhosis: a propensity score matching analysis

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SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY 2021年第5期56卷 570-577页

作者： Li, Shuhong Hao, xuwen Liu, Simiao Gong, Yanxia Niu, Wei tang, Yanping Tianjin Nankai Hosp Dept Gastroenterol Changjiang Rd 6 Tianjin 300100 Peoples R China

Background Prolonged corrected QT (QTc) interval is a hallmark of cirrhotic cardiomyopathy (CCM) and has been ascertained to predict mortality in cirrhosis. However, some critical issues remain to be addressed including unanimous cut-off, calculation approach and applicable population. Methods A total of 274 patients with cirrhosis were included. The prolonged QTc interval over 440 ms according to adjusted Fridericia's formula was used to stratify enrolled subjects. Independent predictors of 3-year mortality were identified with Cox regression model. The Kaplan-Meier method was implemented to obtain survival curves. To reduce impact of selection bias and possible confounders, a propensity score matching (PSM) analysis was used. Results QTc > 440 ms was an independent risk factor in the entire cohort and PSM subset (HR 2.532, 95% CI 1.431-4.480, p=.001;HR 2.802, 95% CI 1.171-6.701, p=.021, respectively). Subgroup analysis showed that QTc > 440 ms was an independent predictor in cirrhotics with age <= 60 years (HR = 1.02, p=.035) and in the presence of ascites (HR = 1.01, p=.008). Conclusions The prolonged QTc interval might help to identify patients with high-risk of all-cause mortality.

关键词： QTc cirrhosis cirrhotic cardiomyopathy propensity score matching

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A deep learning approach for identifying biomedical breakthrough discoveries using context analysis

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SCIENTOMETRICS 2021年第7期126卷 5531-5549页

作者： Wang, Xue Yang, Xuemei Du, Jian Wang, xuwen Li, Jiao tang, Xiaoli Chinese Acad Med Sci & Peking Union Med Coll Inst Med Informat & Lib Beijing 100005 Peoples R China Peking Univ Natl Inst Hlth Data Sci Beijing 100191 Peoples R China

Breakthrough research in scientific fields usually comes as a manifestation of major development and advancement. These advances build to an epiphany where new ways of thinking about a problem become possible. Identifying breakthrough research can be useful for cultivating and funding further innovation. This article presents a new method for identifying scientific breakthroughs from research papers based on cue words commonly associated with major advancements. We looked for specific terms signifying scientific breakthroughs in citing sentences to identify breakthrough articles. By setting a threshold for the number of citing sentences ("citances") with breakthrough cue words that peer scholars often use when evaluating research, we identified articles containing breakthrough research. We call this approach the "others-evaluation" process. We then shortlisted candidates from the selected articles based on the authors' evaluations of their own research, found in the abstracts. This we call the "self-evaluation" process. Combining the two approaches into a dual "others-self" evaluation process, we arrived at a sample of 237 potential breakthrough articles, most of which are recommended by the Faculty Opinions. Based on the breakthrough articles identified, using SVM, TextCNN, and BERT to train the models to identify abstracts with breakthrough evaluations. This automatic identification model can greatly simplify the process of others-self-evaluation process and promote identifying breakthrough research.

关键词： Deep learning Context analysis Breakthrough discoveries Breakthrough identification Citances

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A POWER MANAGEMENT CIRCUIT COMPATIBLE with Ti SmartReflex and Xilinx Ultrascale+ MPSoC DUAL VOLTAGE MECHANISM 10

A POWER MANAGEMENT CIRCUIT COMPATIBLE with Ti SmartReflex an...

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10th International Conference on Computing and Pattern Recognition, ICCPR 2021

作者： Li, Chenyun Li, xuwen tang, Changjiang Wu, Qiang Beijing University of Technology China

ISBN: (纸本)9781450390439

Since the semiconductor technology has entered the age of 90 nm, the static power consumption of the chip has increased rapidly. For edge computing devices, the waste of power can not be ignored. This paper uses the relationship between power consumption and power supply voltage of FPGA and DSP, analyzes the characteristics of the traditional scheme, and designs a hardware circuit according to the different mechanisms of reducing static power consumption of FPGA and DSP According to the design of FPGA and DSP core power supply voltage compatibility, the system realizes the requirement of FPGA and DSP for power supply voltage amplitude and realizes dynamic control of power supply voltage. After verification and comparison, FPGA and DSP can realize the adjustment of performance power consumption and stable operation under the power system. © 2021 ACM.

关键词： Field programmable gate arrays (FPGA)

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环境中微塑料的微生物降解机制与生物强化

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地学前缘 2025年第3期32卷 248-262页

作者：丁佳妍刘翔宇陈旭文汤磊高彦征南京农业大学土壤有机污染控制与修复研究所江苏南京210095

作为一类新污染物,环境中微塑料威胁生态安全和人类健康。微生物降解技术因其经济高效、环境友好的特质而备受关注。近些年来,生物膜、酶工程、基因调控等技术在微塑料微生物降解研究中取得重要进展。生物膜降解微塑料的过程通常包括改... 详细信息

作为一类新污染物,环境中微塑料威胁生态安全和人类健康。微生物降解技术因其经济高效、环境友好的特质而备受关注。近些年来,生物膜、酶工程、基因调控等技术在微塑料微生物降解研究中取得重要进展。生物膜降解微塑料的过程通常包括改变表面特性、浸出添加剂、酶或自由基攻击、渗透分解等阶段。细胞外酶可裂解微塑料的大分子结构,细胞内酶则可改变底物结构并处理代谢产物,两者协同作用构建高效酶系统已成为当前研究的重点之一。基于基因工程技术,以往已培育了多种工程菌株,通过生物信息学挖掘功能基因、解析代谢途径,并结合宏基因组修饰技术,显著提升了微塑料的降解效率。本文综述了微生物降解微塑料的最新研究进展,剖析了微塑料降解功能微生物的物种多样性、降解代谢途径及其机制等。已有研究表明,细菌、真菌和微藻等多种微生物皆具备降解微塑料的能力,其中复合菌群的协同作用尤为显著。细菌主要通过分泌水解酶和氧化酶,切断大分子链或改变塑料化学结构来降解微塑料;真菌则依靠分泌细胞内、外酶及生物表面活性剂,将微塑料分解为单体,菌丝还能增强作用效果;微藻可借助光合作用,分泌毒素、酶以及胞外聚合物促进降解。微塑料的降解通常经历生物劣化、碎片化、同化及矿化四个阶段,不同微生物对聚乙烯、聚苯乙烯等各类微塑料降解效率及机制存在差异。本综述为深入探究微塑料微生物降解原理、进一步发展微生物降解微塑料的方法和技术提供了依据。

关键词：微塑料微生物降解代谢途径降解机制

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A novel remediation strategy of mixed calcium peroxide and degrading bacteria for polycyclic aromatic hydrocarbon contaminated water

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JOURNAL OF HAZARDOUS MATERIALS 2024年 470卷 134122页

作者： tang, Lei Sun, Yulong Lu, Wenyi Chen, xuwen Mosa, Ahmed Minkina, Tatiana Gao, Yanzheng Ling, Wanting Nanjing Agr Univ Inst Organ Contaminant Control & Soil Remediat Coll Resources & Environm Sci Nanjing 210095 Peoples R China Mansoura Univ Fac Agr Soils Dept Mansoura 35516 Egypt Southern Fed Univ Acad Biol & Biotechnol Rostov Na Donu 344090 Russia

Polycyclic aromatic hydrocarbons (PAHs) are a class of toxic organic pollutants commonly detected in the aqueous phase. Traditional biodegradation is inefficient and advanced oxidation technologies are expensive. In the current study, a novel strategy was developed using calcium peroxide (CP) and PAH-degrading bacteria (PDB) to effectively augment PAH degradation by 28.62 - 59.22%. The PDB consisted of the genera Acinetobacter , Stenotrophomonas, and Comamonas . Applying the response surface model (RSM), the most appropriate parameters were identified, and the predictive degradation rates of phenanthrene (Phe), pyrene (Pyr), and Sigma PAHs were 98%, 76%, and 84%, respectively. The constructed mixed system could reduce 90% of Phe and more than 60% of Sigma PAHs and will perform better at pH 5 - 7 and lower salinity. Because PAHs tend to bind to dissolved organic matter (DOM) with larger molecular weights, humic acid (HA) had a larger negative effect on the PAHdegradation efficiency of the CP-PDB mixed system than fulvic acid (FA). The proposed PAH-degradation pathways in the mixed system were based on the detection of intermediates at different times. The investigation constructed and optimized a novel environmental PAH-degradation strategy. The synergistic application of PDB and oxidation was extended for organic contaminant degradation in aqueous environments.

关键词： Polycyclic aromatic hydrocarbons Biodegradation effect Oxidation degradation Mixed degradation strategy

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Atomically ordered Rh₂P catalysts anchored within hollow mesoporous carbon for efficient hydrogen production

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CHEMICAL COMMUNICATIONS 2021年第92期57卷 12345-12348页

作者： Guo, xuwen Chen, Xin Huang, Yanping Min, Xiaowen Kong, Chuncai tang, Yawen Liu, Ben Nanjing Normal Univ Jiangsu Collaborat Innovat Ctr Biomed Funct Mat Sch Chem & Mat Sci Jiangsu Key Lab New Power Batteries Nanjing 210023 Peoples R China ME Instruments Inc Huahan Sci & Technol Ind Pk Shenzhen 518118 Peoples R China Sichuan Univ Ctr Engn Expt Teaching Sch Chem Engn Chengdu 610065 Peoples R China Sichuan Univ Coll Chem Key Lab Green Chem & Technol Minist Educ Chengdu 610064 Peoples R China Shaanxi Prov Key Lab Adv Funct Mat & Mesoscop Phy Sch Phys Minist EducKey Lab Nonequilibrium Synth & Modula Xian Jiaotong Univ Xian 710049 Peoples R China

Atomically ordered Rh2P nanoclusters encapsulated within a high-surface-area hollow mesoporous carbon nanoreactor are catalytically active for hydrogen production via the electrocatalytic hydrogen evolution reaction a... 详细信息

关键词： Hydrogen production

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