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Enhanced direct gaseous CO_(2) fixation into higher bio-succinic acid production and selectivity

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Journal of Environmental Sciences 2024年第9期143卷 164-175页

作者： ziyi yang Wanling Wu Qing Zhao Irini Angelidaki Samuel Gyebi Arhin Dongliang Hua Yuxiao Zhao Hangyu Sun Guangqing Liu Wen Wang Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical TechnologyBeijing 100029China College of Chemical Engineering Beijing University of Chemical TechnologyBeijing 100029China Department of Chemical and Biochemical Environmental Engineering Technical University of DenmarkDK-2800Kgs LyngbyDenmark Energy Research Institute Qilu University of Technology(Shandong Academy of Sciences)Shandong Provincial Key Laboratory of Biomass Gasification TechnologyJinan 250014China

Utilizing CO_(2)for bio-succinic acid production is an attractive approach to achieve carbon capture and recycling(CCR)with simultaneous production of a useful platform *** succinogenes and Basfia succiniciproducens were selected and investigated as microbial ***,the type and concentration of inorganic carbon concentration and glucose concentration were evaluated.6 g C/L MgCO_(3)and 24 g C/L glucose were found to be the optimal basic operational conditions,with succinic acid production and carbon yield of over 30 g/L and over 40%,***,for maximum gaseous CO_(2)fixation,carbonate was replaced with CO_(2)at different ***“less carbonate more CO_(2)”condition of the inorganic carbon source was set as carbonate:CO_(2)=1:9(based on the mass of carbon).This condition presented the highest availability of CO_(2)by well-balanced chemical reaction equilibrium and phase equilibrium,showing the best performance with regarding CO_(2)fixation(about 15 mg C/(L·hr)),with suppressed lactic acid *** to key enzymes analysis,the ratio of phosphoenolpyruvate carboxykinase to lactic dehydrogenase was enhanced at high ratios of gaseous CO_(2),which could promote glucose conversion through the succinic acid *** further increase gaseous CO_(2)fixation and succinic acid production and selectivity,stepwise CO_(2)addition was evaluated.50%-65%increase in inorganic carbon utilization was obtained coupled with 20%-30%increase in succinic acid *** was due to the promotion of the succinic acid branch of the glucose metabolism,while suppressing the pyruvate branch,along with the inhibition on the conversion from glucose to lactic acid.

关键词： Succinic acid CO_(2) fixation Actinobacillus succinogenes Basfia succiniciproducens Lactic acid

The earliest evidence for a microblade adaptation in the remote,high altitude regions of the Tibetan Plateau

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Science China Earth Sciences 2024年第5期67卷 1561-1573页

作者： Yingshuai JIN Xiaoling ZHANG Shejiang WANG Junyi GE Wei HE Wa DA Yunyao TAN ziyi yang Christopher MORGAN Xing GAO Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of SciencesBeijing 100044China University of the Chinese Academy of Sciences Beijing 100049China Cultural Relics Conservation Institute of the Xizang Autonomous Region Lhasa 850000China Nagqu Culture and Tourism Bureau Nagqu 852000China University of Nevada Reno 89557USA

Microblade assemblages are among the most common prehistoric archaeological materials found on the Tibetan Plateau(TP)and are thought to indicate large scale migration to and settlement of the *** microblade sites,however,have been systematically excavated,especially in the remotest,highest-elevation regions of the *** timing of the large-scale arrival,spread,and permanent settlement of people on the TP therefore remains *** this paper,we report on a recently excavated site,Locality 3 of the Nwya Devu Site(ND3),located at 4600 meters above sea level(masl),near the shore of Ngoin Lake,on the interior *** analyses reveal a fairly typical microblade technological orientation and two types of microblade cores:wedge-shaped and semi-conical,which are similar to those found throughout North *** Optically Stimulated Luminescence(OSL)dating and AMS^(14)C dating,the age of ND3 ranges from 11 to 10 *** date range indicates ND3 is the oldest microblade site yet recorded in the remote,high-elevation regions of the TP and thus provides important information about when and how hunter-gatherers using microblades began exploiting the higher altitudes of the *** together,studies at ND3 and throughout the TP suggest that a microblade adaptation is associated with the first prolonged human occupation of the plateau and that microblades played a significant role in mediating the risks and facilitating the mobility necessary to permanently inhabit the TP.

关键词： The interior of Tibetan Plateau Nwya Devu locality 3 Microblade Early Holocene High altitude adaption

Erratum to:Self-enhancing photothermal conversion of 2D Weyl semimetal WTe_(2)with topological surface states for efficient solar vapor generation

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Nano Research 2024年第6期17卷 5758-5759页

作者： Chun Du ziyi yang Anzhen Mo Xuanming Duan Guowei yang Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics TechnologyJinan UniversityGuangzhou 511443China State Key Laboratory of Optoelectronic Materials and Technologies Nanotechnology Research CenterSchool of Materials Science&EngineeringSun Yat-sen UniversityGuangzhou 510275China

The funding numbers of Guangzhou Basic and Applied Basic Research Foundation and Fundamental Research Funds for the Central Universities in the original version of the paper were *** are corrected as“Guangzhou Basic and Applied Basic Research Foundation(No.202201010243)”and“Fundamental Research Funds for the Central Universities(No.21621019)”.And the two funding numbers in the online version of this paper has been *** is a misspelling in Fig.5(e)and the figure of Graphical abstract,“Photon”on the top right corner of the figures should be corrected to“Phonon”.And the two misspellings in the online version of this paper have been corrected.

关键词： corrected topological Basic

Study on Compound Stabilizer Formulation for Mango Juice with Skin

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Agricultural Biotechnology 2024年第1期13卷 78-83页

作者： ziyi yang Yurong WANG Licheng LIU Zijing WANG Jiamei LIU College of Biomedicine and Chemical Engineering Liaoning Institute of Science and TechnologyBenxi 117004China

[Objectives]The effects of stabilizers such as sodium carboxymethyl cellulose,pectin,sodium alginate and xanthan gum on the stability of mango juice with skin were discussed using mango as the raw material.[Methods]The formula and stability of mango beverage with skin were studied using mango juice with skin as the raw *** stabilizers,including pectin,sodium alginate and sodium carboxymethyl cellulose,were added to improve the stability of the *** on single factor experiments and a response surface experiment,the stability model of mango juice was established to determine the best compound stabilizer.[Results]According to an orthogonal experiment on the stability of mango juice with skin,the optimum technical parameters were as follows:sodium carboxymethyl cellulose 0.20%,xanthan gum 0.08%,sodium alginate 0.18%,and pectin 0.14%,with which the optimal suspension stability was 69.12%.The optimum technical parameters from the response surface experiment were as follows:sodium carboxymethyl cellulose 0.199%,pectin 0.1185%,sodium alginate 0.163%,and xanthan gum 0.077%,with which the suspension stability was 70.32%.It was found that the stability of mango juice with skin obtained by the response surface experiment was better than that by the orthogonal experiment,and the order of factors affecting the stability of mango was sodium alginate(C)>sodium carboxymethyl cellulose(A)>pectin(D)>xanthan gum(B).[Conclusions]The formula of compound stabilizer for mango juice was optimized by the orthogonal experiment and the response surface method,providing a theoretical basis for the actual production of mango juice with skin.

关键词： Mango Stability of fruit juice Response surface experiment Optimization

DMA-Trans: A Difference Metric Attention with Position Distancebased Weighting for Transformer in Data Sequence Modeling of Industrial Processes

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DMA-Trans: A Difference Metric Attention with Position Dista...

第35届中国过程控制会议

作者： ziyi yang Xiaofeng Yuan Kai Wang Yalin Wang Chunhua yang Weihua Gui School of Automation Central South University

Accurate feature extraction and quality variable prediction are critical problems for time sequences in industrial processes. However, industrial samples are often time-relevant and have strong correlations with each other that has different positional distance, making it challenging for conventional data-driven models like LSTM and Vanilla Transformer to capture these underlying features. In this paper, A Difference Metric Attention with Position Distance-based Weighting is proposed for Transformer(DMA-Trans) in industrial time series modeling. Firstly, the Difference Metric Attention is established to calculate the difference of query-key vector pair to measure the spatial similarity. In this fashion, the difference can accurately represent the similarity of vectors, compared with the original dot product by directly using any two vectors. Then, Positional Distancebased Weights are designed to capture the distance relevance of samples that have different positional distance. This information may help to extract more potential features because the closer samples tend to have higher relevance while there are weak correlations if samples are far in distance. The effectiveness of the DMA-Trans model is validated in industrial hydrocracking processes for C5 content in the light naphtha and the final boiling point of jet fuel.

关键词： Soft sensor Attention mechanism Dot product Quality prediction Transformer

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微创入路胆囊癌根治术的进展与争议

中华外科杂志 2024年第4期62卷 278-283页

作者：周哲杨越杨自逸龚伟上海交通大学医学院附属新华医院普外科上海200092 上海市胆道疾病研究中心、上海市胆道疾病研究重点实验室、上海交通大学医学院胆道疾病研究所上海200092

手术治疗是胆囊癌治疗的重要方式。随着微创技术的不断发展,腹腔镜或机器人辅助等微创入路胆囊癌根治术的可行性、安全性和有效性受到关注。对于Tis期和T1a期胆囊癌,腹腔镜单纯胆囊切除术安全经济,术后患者预后良好,已被广泛接受和开展... 详细信息

手术治疗是胆囊癌治疗的重要方式。随着微创技术的不断发展,腹腔镜或机器人辅助等微创入路胆囊癌根治术的可行性、安全性和有效性受到关注。对于Tis期和T1a期胆囊癌,腹腔镜单纯胆囊切除术安全经济,术后患者预后良好,已被广泛接受和开展。进展期胆囊癌的根治性切除需对胆囊和肝脏等邻近受侵器官进行切除,并清扫区域淋巴结,此时则需有经验的胆囊癌治疗团队严格把握适应证,遴选合适的患者,制定良好的手术策略,来确保治疗效果。机器人辅助胆囊癌根治性切除手术已在少数中心陆续开展,展现出较好的临床潜力,但仍需开展更多高质量的研究来进一步评估其在胆囊癌治疗中的应用价值。

关键词：胆囊肿瘤外科手术微创手术腹腔镜机器人辅助手术

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基于DEEC车载分簇的交通灯改进配时方案

电子科技大学学报 2024年第4期53卷 533-541页

作者：杨紫伊翟捷萍肖海林湖北大学计算机与信息工程学院武汉430062 桂林电子科技大学认知无线电与信号处理教育部重点实验室桂林541004

针对城市道路中十字交叉路口处车辆拥堵、排队等待的问题,在C-V2X(Cellular Vehicle-to-Everything)车载通信系统中,利用改进DEEC(Distributed Energy Efficient Clustering)分簇算法,选择剩余节点能量较高的车辆节点作为簇头,提高簇的... 详细信息

针对城市道路中十字交叉路口处车辆拥堵、排队等待的问题,在C-V2X(Cellular Vehicle-to-Everything)车载通信系统中,利用改进DEEC(Distributed Energy Efficient Clustering)分簇算法,选择剩余节点能量较高的车辆节点作为簇头,提高簇的生存时间,并通过中继车辆进行信息传输以降低车辆通信时延。同时,利用韦伯斯特(Webster)交通灯改进配时算法进行相应的信号灯相位调度和周期的配时,减少车辆等待时间。通过VISSIM交通仿真建模软件验证Webster交通灯改进配时算法能够减少交叉路口处车辆等待时间,缓解城市道路中的交通拥堵。数值仿真结果表明:该方案降低了车辆通信时延,减少了车辆等待时间,改善了交通拥堵问题。

关键词： C-V2X 交通灯配时算法车载通信车辆分簇

氨煤混燃过程中氮元素迁移转化机理的分子动力学研究

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工程热物理学报 2024年第4期45卷 1212-1223页

作者：杨子怡雷可严智黄庠永顾明言安徽工业大学能源与环境学院马鞍山243002

本文采用分子动力学模拟研究了温度,过量空气系数和氨气混燃比对氨煤混燃过程中典型含氮组分及氮元素迁移转化机理的影响。结果表明:温度升高,加快了反应速率,最终产生的N_(O)_(2)个数随之降低,N_(O)个数先降低后升高最后又降低,其中温... 详细信息

本文采用分子动力学模拟研究了温度,过量空气系数和氨气混燃比对氨煤混燃过程中典型含氮组分及氮元素迁移转化机理的影响。结果表明:温度升高,加快了反应速率,最终产生的N_(O)_(2)个数随之降低,N_(O)个数先降低后升高最后又降低,其中温度为3000 K时产生的N_(2)最少,N_(O)和N_(O)_(2)总量最多。过量空气系数的增加,使得最终N_(O)和N_(O)_(2)个数均增加,N_(2)个数减少。N_(2),N_(O)和N_(O)_(2)的最终个数均随氨气混燃比的增加而增加,但对含N产物占比分析后发现随着氨气混燃比的增加,整体上最终体系内生成的N_(2)个数占比随之增加,N_(O)和N_(O)_(2)个数占比则随之降低。此外过量空气系数为0.8时,随着氨气混燃比的增加,煤焦氮生成N_(2)的前驱体越多。最终探究了煤焦氮和所有氮原子的反应路径及重要中间体。

关键词：煤焦氨煤混燃分子动力学转化机理

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网络“套路贷”犯罪侦查SWOT分析策略

辽宁警察学院学报 2024年第4期26卷 41-49页

作者：杨梓怡中国人民公安大学研究生院北京100038

网络“套路贷”犯罪是“套路贷”犯罪的线上表现形式,是涉网黑恶势力犯罪的一种,危害面更广、被害人更多。目前网络“套路贷”犯罪的侦查存在诸多不合理之处亟需解决。SWOT分析法可以有效帮助公安机关明确内外存在的优势、劣势、机遇、... 详细信息

网络“套路贷”犯罪是“套路贷”犯罪的线上表现形式,是涉网黑恶势力犯罪的一种,危害面更广、被害人更多。目前网络“套路贷”犯罪的侦查存在诸多不合理之处亟需解决。SWOT分析法可以有效帮助公安机关明确内外存在的优势、劣势、机遇、挑战,网络“套路贷”犯罪组织人数众多,组织结构公司化特征明显,因此在明确网络“套路贷”相关概念的前提下,采用SWOT分析法全方位认识当前网络“套路贷”犯罪侦查工作形势,选择合适的组合策略应用于侦查工作。在此策略的指导下,侦查机关应当拓宽案件线索来源、完善犯罪证据链条,开展全链条打击,同时优化涉案资金查控,以此完善网络“套路贷”犯罪的侦查工作,这将提升此类案件侦破效率,维护和谐稳定的社会秩序。

关键词：网络 “套路贷” SWOT分析法侦查策略