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Full utilization of nutrients in rice straw by integrating mushroom cultivation, biogas production, and fertilizer use

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International Journal of Agricultural and Biological Engineering 2019年第4期12卷 174-183页

作者： wenbo huang Akiber Chufo Wachemo Hairong Yuan Xiujin Li Department of Environmental Science and Engineering Beijing University of Chemical TechnologyChaoyang DistrictBeijing 100029China Faculty of Water Supply and Environmental Engineering Arba Minch UniversityP.O.Box 21Arba MinchEthiopia

This study proposed an integrated process of Pleurotus ostreatus cultivation,anaerobic digestion of spent mushroom substrate(SMS),and fertilizer value evaluation of digestate for achieving multiple products and full utilization of nutrients in rice *** results showed that the cultivated mushroom yield from rice straw was 401 g/kg *** yield obtained from anaerobic digestion of SMS was 133.0 mL/g *** fertilizer value of the SMS based digestate reached the national standard of fertilizers from organic sources in *** conversion of rice straw during the integrated process revealed that the process could achieve the full utilization of nutrients in the *** assessment indicated that the process had the viability to be ***,this study provided a feasible strategy to set up a complete recycling agricultural ecosystem.

关键词： rice straw Pleurotus ostreatus anaerobic digestion fertilizer value full utilization

Sc(OTf)_(3)-catalyzed synthesis of polysubstituted furans from acylacetonitriles and renewable acetol

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Green Synthesis and Catalysis 2022年第4期3卷 380-384页

作者： wenbo huang Fang Liu Kaimei Wang Alexander Sidorenko Maxim Bei Zhigang Zhang Wei Fang Minghao Li Yanlong Gu Shaoyong Ke Key Laboratory of Microbial Pesticides Ministry of Agriculture and Rural AffairsNational Biopesticide Engineering Research CentreHubei Biopesticide Engineering Research CentreHubei Academy of Agricultural SciencesWuhan 430064China Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHubei Key Laboratory of Material Chemistry and Service FailureHuazhong University of Science and TechnologyWuhan 430074China Institute of Chemistry of New Materials of National Academy of Sciences of Belarus Minsk 220141Belarus School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanShihezi UniversityShihezi 832004China

A[3+2]cyclization reaction of acylacetonitriles and hydroxyacetone was developed by using Sc(OTf)_(3)as a catalyst to synthesize some furan *** C2-based acetals,such asα-bromoacetaldehyde acetal,1,4-dithiane-2,5-diol and glycolaldehyde diethyl acetal,also reacted readily as alternative counterpart reagents to *** established reactions can be used to synthesize a well-known fungicide,*** activity investigation against four common plant funguses indicated that some of the obtained furan products furnish general and high biological activities.

关键词： Acetal[3+2]annulation Furan Fenfuram Antifungal activity

A potential threat from biodegradable microplastics: mechanism of cadmium adsorption and desorption in the simulated gastrointestinal environment

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Frontiers of Environmental Science & Engineering 2024年第2期18卷 63-75页

作者： Timing Jiang Xiang Wu Shushan Yuan Changfei Lai Shijie Bian wenbo Yu Sha Liang Jingping Hu Liang huang Huabo Duan Yafei Shi Jiakuan Yang School of Environmental Science&Engineering Huazhong University of Science and TechnologyWuhan 430074China School of Resources and Environmental Science Hubei UniversityWuhan 430062China Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling Wuhan 430074China School of Civil Engineering Architecture and EnvironmentHubei University of TechnologyWuhan 430068China State Key Laboratory of Coal Combustion Huazhong University of Science and TechnologyWuhan 430074China

It has been demonstrated that microplastics (MPs) can accumulate heavy metals from the environment and transfer them into organisms via the food chain. However, adsorption and desorption capacities for biodegradable MPs relative to those for conventional MPs remain poorly understood. In this study, cadmium (Cd(II)) adsorption and desorption characteristics of polylactic acid (PLA), a typical biodegradable MP, were investigated. Two conventional MPs, i.e., polypropylene (PP) and polyamide (PA) were used for comparison. The maximum Cd(II) adsorption capacities of the MPs studied in the adsorption experiments decreased in the order PA (0.96 ± 0.07 mg/g) > PLA (0.64 ± 0.04 mg/g) > PP (0.22 ± 0.03 mg/g). The Pseudo-second-order kinetic model and Freundlich isothermal model described the Cd(II) adsorption behaviors of PLA MPs well. X-ray photoelectron spectroscopy and two-dimensional Fourier transform infrared correlation spectroscopy analysis indicated that oxygen functional groups were the major and preferential binding sites of PLA MPs, which contributed to their high Cd(II) adsorption capacities. Simulated gastric and intestinal fluids both significantly enhanced the desorption capacities of the examined MPs. Notably, degradation of the PLA MPs during in vitro human digestion made the Cd(II) on the PLA MPs more bioaccessible (19% in the gastric phase and 62% in the intestinal phase) than Cd(II) on the PP and PA MPs. These results indicate the remarkable capacities of biodegradable MPs to accumulate Cd(II) and transfer it to the digestive system and show that biodegradable MPs might pose more severe threats to human health than conventional nonbiodegradable MPs.

关键词： Biodegradable microplastics Cadmium Adsorption and desorption Gastrointestinal environment Two-dimensional correlation spectroscopy Bioaccessibility

融合注意力的ConvNeXt视网膜病变自动分级

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光学精密工程 2022年第17期30卷 2147-2154页

作者：黄文博黄钰翔姚远燕杨长春师范大学计算机科学与技术学院吉林长春130032 中国科学院重大任务局北京100864

由于视网膜病变的类间图像特征差别小及分类临界值相对模糊,自动分级算法存在识别与分级准确率低的问题,提出了融合高效通道注意力(Efficient Channel Attention,ECA)特征的ConvNeXt视网膜病变自动分级模型。针对数据集中数据不足的问题... 详细信息

由于视网膜病变的类间图像特征差别小及分类临界值相对模糊,自动分级算法存在识别与分级准确率低的问题,提出了融合高效通道注意力(Efficient Channel Attention,ECA)特征的ConvNeXt视网膜病变自动分级模型。针对数据集中数据不足的问题,采用水平翻转左右变换的方法扩充数据,并引入相关数据集来均衡数据的分布。针对眼底图像中出现的图像模糊、光照不均等问题,采用Graham方法对图像进行预处理突出病变特征。提出了融合注意力的ConvNeXt网络来辅助医生诊断视网膜病变,引入ECA机制,并设计了E-Block模块,该模块具有高性能、低参数的特性,能够在训练过程中有效捕捉跨通道交互的信息,同时避免降维。采用迁移学习方法训练网络的所有层参数,加入dropout方法避免ConvNeXt网络的学习能力过强导致的过拟合问题。实验结果表明,所提出的模型敏感性为95.20%,特异度为98.80%,准确率为95.21%。与常用的网络相比,本文方法针对视网膜病变自动分级各项性能指标均有提高。

关键词：视网膜病变识别与分级迁移学习 ConvNeXt网络高效通道注意力 E-Block

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低温环境下赛区面向路网行人步行的VMS自适应信息发布策略

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华南理工大学学报（自然科学版） 2022年第5期50卷 40-48页

作者：黄文博陈艳艳北京工业大学城市交通学院北京100124

为了提高低温环境下赛区内行人的出行效率、降低行人出行安全风险,首先从信息干预的角度,通过建立路网VMS信息发布与客流拥挤状态间的互动反馈机制以及路网VMS信息发布布局动态优化模型,提出了一种基于客流实时响应的路网VMS(可变信息板... 详细信息

为了提高低温环境下赛区内行人的出行效率、降低行人出行安全风险,首先从信息干预的角度,通过建立路网VMS信息发布与客流拥挤状态间的互动反馈机制以及路网VMS信息发布布局动态优化模型,提出了一种基于客流实时响应的路网VMS(可变信息板)自适应信息发布策略;然后,针对该策略,提出了基于多智能体的场景仿真方法;最后,以某寒冷赛事赛区为例,对有无VMS信息发布策略下行人入场、散场场景进行仿真。结果表明,与无VMS信息发布策略下的行人出行相比,在该策略下短时出行客流占比有所增加,入场阶段个人平均行走时间节省约2.6%,道路最大拥挤度降低约20.45%;散场阶段个人平均行走时间节省约7.0%,道路最大拥挤度降低约10.51%。该研究可为赛区管理者调控客流、提高观赛体验等提供理论基础和数据支撑。

关键词：低温环境赛区出行效率出行安全风险可变信息板信息发布拥挤度客流调控

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血清TK1、MMP-9检测对原发性肝癌预后的评估价值

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中国医师杂志 2022年第5期24卷 723-727,732页

作者：黄文波盘锦市中心医院肿瘤内科盘锦124000

目的探讨血清胸苷激酶1(TK1)、基质金属蛋白酶-9(MMP-9)检测对原发性肝癌(PHC)患者预后的评估价值。方法回顾性选取2015年12月至2017年12月盘锦市中心医院收治的100例PHC患者,根据预后情况分为生存组(n=73)和死亡组(n=27),对比两组患者... 详细信息

目的探讨血清胸苷激酶1(TK1)、基质金属蛋白酶-9(MMP-9)检测对原发性肝癌(PHC)患者预后的评估价值。方法回顾性选取2015年12月至2017年12月盘锦市中心医院收治的100例PHC患者,根据预后情况分为生存组(n=73)和死亡组(n=27),对比两组患者临床特征及血清TK1、MMP-9水平,分析血清TK1、MMP-9水平与PHC临床特征及预后的关系,受试者工作特征(ROC)曲线分析血清TK1、MMP-9检测对PHC患者预后的评估价值。结果生存组中多发病灶、低分化、TNM分期Ⅲ~Ⅳ期、肝外转移的比例以及微血管侵犯程度均低于死亡组,且血清TK1、MMP-9水平也低于死亡组(均P0.05),而与患者病灶数目、分化程度、TNM分期、有无肝外转移以及微血管侵犯程度存在密切相关性(均P<0.05)。血清TK1、MMP-9水平预测PHC预后的ROC曲线下面积为0.859、0.830。TK1及MMP-9高水平的PHC患者3年生存率明显小于低水平患者(均P<0.05)。结论血清TK1、MMP-9水平与PHC患者病情及预后存在相关性,TK1、MMP-9可作为早期评估PHC患者预后的参考指标。

关键词：基质金属蛋白酶9 胸苷激酶1 原发性肝癌预后

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融合注意力机制的TransGLnet脉络膜自动分割

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光学精密工程 2023年第23期31卷 3482-3489页

作者：黄文博屈超凡燕杨长春师范大学计算机科学与技术学院吉林长春130032

针对脉络膜与巩膜间对比度低,脉络膜分割存在脉络膜下边界模糊,难以界定等问题,提出了融合注意力机制的TransGLnet脉络膜自动分割网络,在卷积层引入全局注意力模块(Global Attention Module,GAM),在特征之间应用矩阵乘法,在整体空间位... 详细信息

针对脉络膜与巩膜间对比度低,脉络膜分割存在脉络膜下边界模糊,难以界定等问题,提出了融合注意力机制的TransGLnet脉络膜自动分割网络,在卷积层引入全局注意力模块(Global Attention Module,GAM),在特征之间应用矩阵乘法,在整体空间位置的多个特征之间建立非线性交互,在不使用大量参数的情况下提取全局特征;在卷积层和Transformer编码器之间引入局部注意力模块(Local Attention Module,LAM),以1/4特征图为基本单元探索局部特征,特征图元素位置移动规则为保持行位置的元素不变,将列位置的元素由大到小重新排列。两模块融合可令网络有效兼顾全局与局部特征。实验结果表明,TransGLnet网络的Dice值为0.91,准确率为0.98,平均交并比为0.89,F1值为0.90,豪斯多夫距离为6.56。与现有脉络膜自动分割方法相比,本文方法的各项性能指标均有提高。TransGLnet脉络自动分割网络具有较好的稳定性,可供临床借鉴。

关键词：医学图像处理脉络膜自动分割 TransUnet 全局注意力局部注意力

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注意力感知的多尺度语义视杯盘分割

光学精密工程 2023年第21期31卷 3203-3211页

作者：燕杨曹娅迪黄文博长春师范大学计算机科学与技术学院吉林长春130032

为了解决编码器-解码器网络结构在目标提取中抑制无关语义、跨越语义鸿沟等问题,以获取更高精度,采用UNet作为提取特征的主干网络;为了减轻浅层特征与深层特征语义的差异,设计一种融合注意力感知的多尺度语义池化模块(Channel-Spatial-P... 详细信息

为了解决编码器-解码器网络结构在目标提取中抑制无关语义、跨越语义鸿沟等问题,以获取更高精度,采用UNet作为提取特征的主干网络;为了减轻浅层特征与深层特征语义的差异,设计一种融合注意力感知的多尺度语义池化模块(Channel-Spatial-Pyramid,CSP),替代早期层中的跳跃链接。CSP模块从空间与通道两个层面强调更有意义的语义信息,通过4个不同池化核的并行分支提取不同尺度特征,聚合所有分支结果与后期层特征拼接。实验结果表明,CSP-Net在彩色眼底图像视盘分割中的Dice指数可达99.6%,视杯分割结果的Dice指数为92.1%,相比现有算法均有提高。所提出的CSP-Net对于眼底图像中的微小目标提取的有效性及抗干扰性较高,可为青光眼筛查与诊断临床提借鉴。

关键词：多尺度语义注意力感知目标提取 U-Net

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Energy storage optimization of ferroelectric ceramics during phase-transition process of amorphous/nanocrystalline and polycrystalline by using a phaseffeld model for dielectric breakdown

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Journal of Advanced Dielectrics 2024年第1期14卷 33-41页

作者： Suilong huang Jianwen Chen Zhen Su Xiucai Wang wenbo Zhu Wenjun Chen Xinmei Yu Peng Xiao School of Electronic and Information Engineering Foshan University Foshan 528000P.R.China School of Mechatronic Engineering and Automation Foshan University Foshan 528000P.R.China China-Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing 314001P.R.China School of Materials Science and Hydrogen Energy Foshan University Foshan 528000P.R.China School of Physics and Optoelectronic Engineering Foshan University Foshan 528000P.R.China

Ferroelectric ceramics have the potential to be widely applied in the modern industry and military power systems due to their ultrafast charging/discharging speed and high energy *** the structural design and electrical properties of ferroelectric capacitor,it is still a challenge to ffnd out the optimal energy storage of ferroelectric ceramics during the phase-transition process of amorphous/nanocrystalline and *** this work,a ffnite element model suitable for the multiphase ceramic system is constructed based on the phase ffeld breakdown *** nonlinear coupling relationship of multiple physical ffelds between multiphase ceramics was taken into account in this *** basic structures of multiphase ceramics are generated by using the Voronoi diagram construction *** speciffed structure of multiphase ceramics in the phase-transition process of amorphous/nanocrystalline and polycrystalline was further obtained through the grain boundary diffusion *** simulation results show that the multiphase ceramics have an optimal energy storage in the process of amorphous polycrystalline transformation,and the energy storage density reaches the maximum when the crystallinity is 13.96%and the volume fraction of grain is 2.08%.It provides a research plan and idea for revealing the correlation between microstructure and breakdown characteristics of multiphase *** simulation model realizes the nonlinear coupling of the multiphase ceramic mesoscopic structure and the phase ffeld *** provides a reference scheme for the structural design and performance optimization of ferroelectric ceramics.

关键词： Ferroelectric ceramics phase transition phase-field model dielectric breakdown energy storage