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酱香型白酒一轮次糟醅微生物群落结构及溯源分析

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食品科学 2025年第4期46卷 117-125页

作者：朱安然汪地强胡建锋吴成谢丹黄河鸥杨军林胡峰路虎李傲贵州习酒股份有限公司贵州习水564600

为探究酱香型白酒一轮次堆积和窖池发酵过程糟醅微生物群落结构组成与理化指标的相关性及微生物来源,基于传统可培养方法与Illumina MiSeq测序平台对糟醅、酿造环境微生物群落结构组成及演替规律开展研究,并分析其与理化因子的关联作用... 详细信息

为探究酱香型白酒一轮次堆积和窖池发酵过程糟醅微生物群落结构组成与理化指标的相关性及微生物来源,基于传统可培养方法与Illumina MiSeq测序平台对糟醅、酿造环境微生物群落结构组成及演替规律开展研究,并分析其与理化因子的关联作用,进一步采用Source Tracker软件解析糟醅优势微生物的来源和比例。结果表明:一轮次堆积发酵6 d糟醅中细菌和酵母菌的菌落总数达到最大值,分别为(3.45±0.15)×10^(6) CFU/g和(40.5±2.50)×10^(4) CFU/g;堆积发酵6 d后未被分类的乳杆菌科细菌(unclassified_Lactobacillaceae,91.23%~91.77%)和毕赤酵母属(Pichia,32.84%~91.00%)为绝对的优势细菌和真菌属,其中unclassified_Lactobacillaceae与糟醅水分含量和酸度呈显著正相关,Pichia与糟醅水分含量和还原糖含量呈显著正相关。微生物溯源分析表明,堆积发酵0 d和堆积发酵3 d糟醅中优势微生物主要来源于堆积地面(32.44%~57.37%)和生产器具(26.89%~50.74%),堆积发酵6 d至窖池发酵43 d糟醅中优势微生物主要来源于窗台墙壁等物体表面(86.41%~87.31%)。其中unclassified_Lactobacillaceae主要来源于堆积地面(85.79%),堆积发酵6 d后由主要来源于窗台墙壁等物体表面(91.96%~94.91%)。Pichia(1.32%~87.06%)在酿造环境中来源较多,堆积发酵6 d前,在堆积发酵过程中其主要来源于厂房内空气、生产器具和窗台墙壁等物体表面,窖池发酵过程主要来源于窖池内壁,占比为18.21%~30.79%。本研究进一步揭示了酱香型白酒一轮次堆积和窖池发酵过程糟醅微生物群落组成与理化指标的关联作用以及优势微生物菌群来源,为阐明酱香型白酒酿造机理提供了理论基础。

关键词：酱香型白酒堆积和窖池发酵相关性微生物群落结构微生物溯源

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政党组织领导力:经典认识与中国探索

临沂大学学报 2025年第1期47卷 1-14页

作者：张雪梅胡露露上海交通大学马克思主义学院上海200433

组织领导力是政党能力构成的重要内容,是政党凸显领导优势的关键所在。立足经典马克思主义理论可以发现,马克思主义经典作家基于“国际的事业”和“一国胜利”问题,从理论和实践层面对政党组织领导力进行了可贵探索。中国共产党继承了... 详细信息

组织领导力是政党能力构成的重要内容,是政党凸显领导优势的关键所在。立足经典马克思主义理论可以发现,马克思主义经典作家基于“国际的事业”和“一国胜利”问题,从理论和实践层面对政党组织领导力进行了可贵探索。中国共产党继承了马克思主义经典作家关于政党组织领导力的理论和实践资源,在破解两极分化、实现共同富裕等问题上,展现出强大的组织领导力,彰显出人民性、战略性、系统性和务实性的特点。中国特色社会主义进入新时代,要确保现代化领导的坚定性和目标实现,就应该正确处理党内外发展重大关系,解决好“举什么旗、走什么路”的方向问题,建构“五力”协同推进机制,继续提高中国共产党的组织领导力。

关键词：政党组织领导力经典认识中国探索 “五力”协同推进机制

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数字经济发展对地方政府税收收入的影响路径

重庆交通大学学报(社会科学版) 2025年第1期25卷 70-80页

作者：李光龙胡露安徽大学经济学院合肥230031

近年来,我国数字经济规模快速扩张,成为继农业经济、工业经济之后的经济新业态,新型经济形态的改革带动“数据生产力”快速发展,“数实共生”的新经济模式对税收产生重要影响。基于2013—2019年我国31个省区市的面板数据,采用双向固定... 详细信息

近年来,我国数字经济规模快速扩张,成为继农业经济、工业经济之后的经济新业态,新型经济形态的改革带动“数据生产力”快速发展,“数实共生”的新经济模式对税收产生重要影响。基于2013—2019年我国31个省区市的面板数据,采用双向固定效应模型,检验数字经济发展对地方政府税收收入的影响。结果表明,数字经济发展能够对地方政府税收收入产生积极影响,通过一系列稳健性检验后结论依然成立。中介效应分析表明,数字经济发展通过提高就业水平增加对地方政府税收收入的贡献度。

关键词：数字经济发展地方政府税收收入就业水平税收征管强度

Effect of Grain Size on the Precipitation Behaviour in Super-Ferritic Stainless Steels During a Long-Term Ageing

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Acta Metallurgica Sinica(English Letters) 2021年第9期34卷 1285-1295页

作者： hui-hu lu Xing-Quan Shen Wei Liang School of Mechanical Engineering North University of ChinaTaiyuan 030051China College of Materials Science and Engineering Taiyuan University of Technology3 Xueyuan RoadTaiyuan 030024China

A 27.6Cr-3.6Mo-2Ni alloy was solution treated and then aged for a long time to study the effect of grain size on precipitation behaviour by using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The experimental results demonstrated that the average grain size increased from 46.3 ± 6.2 to 101.8 ± 13.5 μm and the grain boundary length per unit area decreased from 3.3 × 10^(4) to 1.7 × 10^(4) m/m^(2) with an increasing annealing temperature from 1100 to 1200 ℃. After ageing at 800 ℃, the σ-phase,χ-phase and Laves phase were observed. As the ageing time increased, the σ-phase notably increased, while the χ-phase and Laves phase gradually decreased before finally vanishing after ageing for 400 h. The σ-phase precipitation kinetics curves consisted of two parts, and the grain size had a significant effect on the first stage of the precipitation curves due to the abundance of nucleation sites in the specimens with finer grains. The Laves phase was transformed from Nb(C,N) particles by Nb diffusion. As the ageing time increased, the ferrite phase decreased due to the transformation of the ferrite phase to the σ-phase, and then C was expelled into the untransformed ferrite grains. Moreover, new Nb(C,N) particles were formed by Nb diffusion from the Laves phase, resulting in the absence of the Laves phase.

关键词： Ferritic stainless steel Grain size Ageing treatment σ-phase precipitation kinetics Laves phase transformation

Protective Effects of hu-lu-Ba-Wan(葫芦巴丸)against Oxidative Stress in Testis of Diabetic Rats through PKCα/NAPDH Oxidase Signaling Pathway

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Chinese Journal of Integrative Medicine 2021年第6期27卷 432-439页

作者： JIANG Shu-jun DONG hui FANG Ke CHEN Guang LI Jing-bin XU Li-jun ZOU Xin lu Fu-er Institute of Integrated Traditional Chinese and Western Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan(430030)China Department of Integrated Traditional Chinese and Western Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan(430030)China

Objective:To explore the protective effect and the underlying mechanism of hu-lu-Ba-Wan(葫芦巴丸,HLBW)on the testis of diabetic ***:Twenty-four male Wistar rats(160–180 g)were randomly divided into 3 groups according to a random number table,including a control group(n=8),diabetic group(n=8),and HLBW group(n=8).Diabetic rat model was established by high-fat-diet administration and single intravenous injection of streptozotocin(26 mg/kg).Then HLBW granule was administrated for 12 *** blood glucose and insulin levels as well as serum total testosterone level and testicular testosterone content were *** stress markers in both serum and testis were ***,testicular morphology was observed under hematoxylin and eosin(HE)and the ultrastructure of Leydig cell was observed by electron *** superoxide anion level was detected by DHE,and TUNEL-positive cells of testis was evaluated by TUNEL *** gene and protein expression of protein kinase C(PKCα),phosphorylated PKCα(P-PKCα)and P47 phox in testicular tissues were determined by quantitative RT-PCR analysis and Western bolt ***:Compared with the diabetic group,HLBW treatment significantly reduced the fasting glucose levels and increased the levels of fasting insulin and testosterone in serum(P<0.01).HLBW administration also reduced the levels of reactive oxygen species(ROS)in plasma and alleviated the damage of oxidative stress in the testis of diabetic ***,HLBW down-regulated the protein and m RNA levels of PKCα,P-PKCαand P47 phox in testicular ***:HLBW may attenuate the oxidative stress in the testis of diabetic rats via PKCα/NAPDH oxidase signaling pathway.

关键词： hu-lu-Ba-Wan Chinese medicine oxidative stress testis diabetes nicotinamide-adenine dinucleotide phosphate(NADPH)oxidase

Tailoring the Texture and Mechanical Properties of Textured-AZ31 Mg Alloy Sheets by Twinning and Recrystallization

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Acta Metallurgica Sinica(English Letters) 2022年第12期35卷 1983-1995页

作者： hui-hu lu You Li Li lu Wang-Gang Zhang Wei Liang School of Mechanical Engineering North University of ChinaTaiyuan 030051China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China

In this study,a method of corrugated width limit alignment processes(CWLA)was applied to pre-twin in hot-rolled Mg alloy *** microstructure evolution and mechanical properties of the CWLA sheets were *** results demonstrated that the grain orientation was transformed from strong basal texture to RD-rotated texture after CWLA treatment and up to 22.2%of{10-12}tensile twin boundaries were produced in the *** 60±5°twin variant pairs were dominant in the twinned *** kinds of dynamic recrystallization(DRX)mechanism,i.e.,continuous DRX(CDRX)at low-temperature CWLA and the discontinuous DRX(DDRX)at high-temperature condition were *** post-annealing,the twin-induced static recrystallization(SRX)and abnormal grain growth were observed in the CWLA samples,and most twin boundaries were *** CAWL for 60 min at 300℃ and post annealing,an improvement on plasticity and strength were achieved with 55%increment for uniform elongation(UE)and 10%increment for ultimate tensile strength(UTS).

关键词： Magnesium alloy Corrugated width limit alignment processes Tension twinning Dynamic recrystallization Mechanical properties

The joint knowledge reasoning model based on knowledge representation learning for aviation assembly domain

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Science China(Technological Sciences) 2024年第1期67卷 143-156页

作者： LIU PeiFeng QIAN lu lu hu XUE Lei ZHAO XingWei TAO Bo State Key Laboratory of Digital Manufacturing Equipment and Technology Department of MechanicalHuazhong University of Science and TechnologyWuhan 430074China School of Transportation and Logistics Engineering Wuhan University of Technology(WHUT)Wuhan 430063China Shanghai Aircraft Manufacturing Co. Ltd.Shanghai 201324China

Knowledge graph technology is widely applied in the domain of general knowledge reasoning with an excellent *** fine-grained professional fields,professional knowledge graphs can provide more accurate information in practical industrial *** on an aviation assembly domain-specific knowledge graph,the article constructs a joint knowledge reasoning model,which combines a named entity recognition model and a subgraph embedding learning *** performing knowledge reasoning tasks,the two models vectorize entities,relationships and entity attributes in the same space,so as to share parameters and optimize learning *** knowledge reasoning model,which provides intelligent question answering services,is able to reduce the assembly error rate and improve the assembly *** system can accurately solve general knowledge reasoning problems in the assembly process in actual industrial scenarios of general assembly and component assembly under interference-free ***,this paper compares the proposed knowledge reasoning model based on knowledge representation learning and the question-answering system based on large-scale pre-trained *** the application scenario of system functional testing in general assembly,the joint model attains an accuracy rate of 95%,outperforming GPT with 78%accuracy and enhanced representation through knowledge integration with 71%accuracy.

关键词： intelligent manufacturing knowledge graph aviation assembly knowledge representation knowledge-based question an-swering

Experimental investigation and correlations for proppant distribution in narrow fractures of deep shale gas reservoirs

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Petroleum Science 2022年第2期19卷 619-628页

作者： Hao Zeng Yan Jin Hai Qu Yun-hu lu College of Petroleum Engineering China University of Petroleum(Beijing)Beijing102249China College of Petroleum Engineering Chongqing University of Science and TechnologyChongqing401331China

Hydraulic fracturing is a crucial stimulation for the development of deep shale gas reservoirs.A key challenge to the effectiveness of hydraulic fracturing is to place small proppants in complex narrow fractures *** experiments with varied particle and fluid parameters are carried out in a narrow planar channel to understand particle transport and *** four dimensionless parameters,including the Reynold number,Shields number,density ratio,and particle volume fraction,are introduced to describe the particle transport in narrow *** results indicate that the narrow channel probably induces fluid fingers and small particle aggregation in a highly viscous fluid,leading to particle settlement near the *** low viscous fluid is beneficial to disperse particles further into the fracture,especially in the high-speed fluid *** linear and natural logarithmic laws have relationships with dimensionless parameters *** multiple linear regression method developed two correlation models with four dimensionless parameters to predict the bed equilibrium height and covered area of small particles in narrow *** study provides fundamental insight into understanding small size proppant distribution in deep reservoirs.

关键词： Proppant transport Multiphase flow Hydraulic fracturing Deep reservoir Narrow fractures

Effect of electromagnetic parameters on melt flow and heat transfer of AZ80 Mg alloy during differential phase electromagnetic DC casting based on numerical simulation

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China Foundry 2022年第3期19卷 191-200页

作者： Yong-hui Jia Cheng-lu hu Qi-chi Le Wen-yi hu Key Laboratory of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang 110819China Longyan University College of Chemistry and Materials ScienceLongyan 364012FujianChina

Based on multi-physical field coupling numerical simulation method,magnetic field distribution,melt flow,and heat transfer behavior of aΦ300 mm AZ80 alloy billet during differential phase electromagnetic DC casting(DP-EMC)with different electromagnetic parameters were *** results demonstrate that the increase in current intensity only changes the magnitude but does not change the Lorentz force's distribution *** maximum value of the Lorentz force increases linearly followed by an increase in current *** the frequency increases,the Lorentz force's r component remains constant,and the z component decreases *** change in current intensity correlates with the melt oscillation and convection intensity positively,as well as the liquid sump temperature *** does not mean that the higher the electric current,the better the metallurgical quality of the billet.A lower frequency is beneficial to generate a more significant melt flow and velocity fluctuation,which is helpful to create a more uniform temperature *** DP-EMC parameters for aΦ300 mm AZ80 Mg alloy are 10-20 Hz frequency and 80-100 A current intensity.

关键词： heat transfer melt flow differential phase electromagnetic field DC casting Mg alloy