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Chronological Study of Coal-seam Water and its Implication on Gas Production in the South Qinshui Basin

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 207-219页

作者： CHEN Biying FANG Lujia lang Yunchao xu Sheng LIU Congqiang ZHANG Luyuan HOU Xiaolin Institute of Surface-Earth System Science School of Earth System ScienceTianjin UniversityTianjin 300072China Institute of Earth Environments Chinese Academy of SciencesXi’an 710061China

The knowledge of the residence time of formation water is fundamental to understanding the subsurface flow and hydrological setting.To better identify the origin and evolution of coal seam water and its impact on gas storage and production,this study collected coalbed methane co-produced water in the southeast Qinshui Basin and detected chemical and isotopic compositions,especially 36Cl and 129I concentrations.The calculated tracer ages of 129I(5.2–50.6 Ma)and 36Cl(0.13–0.76 Ma)are significantly younger than the age of coal-bearing formation(Pennsylvanian-Cisuralian),indicating freshwater recharge after coal deposition.The model that utilises 129I/I and 36Cl/Cl ratios to constrain the timing of recharge and the proportion of recharge water reveals that over 60%of pre-anthropogenic meteoric water entered coal seams since 10 Ma and mixed with residue initial deposition water,corresponding to the basin inversion in Cenozoic.The spatial distribution of major ion concentrations reveals the primary recharge pathway for meteoric water from coal outcrops at the eastern margin to the basin center.This study demonstrates the occurrence of higher gas production rates from wells that accept water recharge in recent times and suggests the possible potential of the non-stagnant zones for high gas production.

关键词： CBM co-produced water iodine-129 chlorine-36 water chemistry Qinshui Basin

Molecular analyses display the increasing diversity of Podostemaceae in China

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Plant Diversity 2024年第3期46卷 421-424页

作者： Zhi-Zhong Li Zhun xu Shuang Wu lang-Xing Yuan Chun-Yu Zou Yan Liu Jian-Yong Lin Shi-Chu Liang Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University) Ministry of EducationGuilin 541006China Wuhan Botanical Garden Chinese Academy of SciencesWuhan 430074China Sino-Africa Joint Research Center Chinese Academy of SciencesWuhan 430074China Guangxi Association for Science and Technology Nanning 530023China Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural SciencesHaikou 571101China Guangxi Institute of Botany Chinese Academy of SciencesGuilin 541006China Guangxi Forestry Research Institute Nanning 530028China

Podostemaceae(riverweed family),one of the largest aquatic plant families in the world,comprises about 350 species in 51 genera placed in three subfamilies,Podostemoideae,Weddellinoideae,and Tristichoideae(Koi et al.,2022).Most Podostemaceae genera(~38)are monotypic or oligotypic,with a high level of endemism(Koi et al.,2018,2022).Members of Podostemaceae adhere to rocks in fast-flowing rivers,streams,or waterfalls in the subtropics and tropics(Koi et al.,2018).As an adaptation to fastrunning currents,the morphological structure of river-weeds tends to be extremely reduced,including a loss or reduction of primary shoots or roots(Koi and Kato,2007).The vegetative mass of these plants resembles lichens or bryophytes,and are thus known commonly as“dream bryophytes”(Philbrick and Retana,1998).Podostemaceae plants flower when the water level drops during the dry season.In recent years,anthropogenic factors and climate change have severely affected river weed habitats,decreasing populations of these plants.

关键词： roots season habitat

Polyphenol components in black chokeberry(Aronia melanocarpa)as clinically proven diseases control factors——an overview

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Food Science and Human Wellness 2024年第3期13卷 1152-1167页

作者： Ningxuan Gao Chi Shu Yuehua Wang Jinlong Tian Yuxi lang Chenyu Jin Xingyue Cui Hanqian Jiang Shi’an Liu Zhiying Li Wei Chen Hao xu Bin Li Department of Food Science College of FoodShenyang Agricultural UniversityShenyang 110161China Department of Food Science and Nutrition College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou 310058China Chaoyang Beihe Food Co. Ltd.Chaoyang 122100China

The black chokeberry is rich in polyphenols,including flavonoids with anthocyanins,flavanols and lavonols as the main components and a variety of phenolic acids represented by chlorogenic acid.Because of these polyphenols,black chokeberry has the effect of preventing and adjuvant therapy diseases.This study summarized the current research results on the types and contents of functional components in black chokeberry,and analyzed their digestion,absorption and metabolism in human body.On this basis,the disease control functions that have been proved effective in clinical research were reviewed and analyzed.These studies showed that black chokeberry have good prevention and adjuvant therapy effects on hyperlipidemia,hypertension,diabetes and inflammation.Because there are different functional components in black chokeberry,its prevention and treatment of the same disease can come from multiple pathways,which provides a more reliable effectiveness for the disease control of different populations.

关键词： Black chokeberry Hyperlipidemia Hypertension Diabetes Inflammation

Improving the resilience of maritime supply chains: The integration of ports and inland transporters in duopoly markets

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Frontiers of Engineering Management 2023年第1期10卷 51-66页

作者： Jia SHI Jihong CHEN lang xu Zhongjie DI Qunzhen QU College of Management Shenzhen UniversityShenzhen 518071China School of Transport and Communications Shanghai Maritime UniversityShanghai 201306China Hainan Special Project Wuhan University of TechnologySanya 572025China School of Economics&Management Shanghai Maritime UniversityShanghai 201306China

The adverse impact of the outbreak of COVID-19 has reduced ports’ operational efficiency. In addition, ports and inland logistics providers are generally independent of each other and difficult to work together, which leads to time loss. Thus, as the core player, ports can integrate with inland logistics providers to improve the efficiency and resilience of maritime supply chains. This study examines the strategic options of two competing maritime supply chains consisting of ports and inland logistics providers. We investigate the impact of cooperation between ports and inland logistics providers and government regulation on the maritime supply chain by comparing members’ optimal pricing and overall social welfare under centralized, decentralized, and hybrid scenarios. Results indicate that the hybrid scenario is an equilibrium strategy for maritime supply chain, although this strategy is not optimal for governments seeking to improve supply chain resilience and maximize social welfare. Furthermore, observations show that through government economic intervention, both seaborne supplies can be incentivized to adopt an integrated strategy, and business and society can achieve a win–win situation.

关键词： resilience Hotelling model social welfare maritime supply chain game theory

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奈波斯和普鲁塔克笔下的福基昂形象之比较

史学史研究 2024年第1期 56-66页

作者：徐朗南开大学历史学院天津300071

奈波斯和普鲁塔克都曾为雅典将军福基昂立传,但两人根据各自的写作目的,塑造了完全不同的福基昂形象。奈波斯将福基昂描述成雅典的叛徒,通过分析他的政治失败来为读者提供历史教诲。普鲁塔克则出于道德教育和启示同胞的需要,将福基昂塑... 详细信息

奈波斯和普鲁塔克都曾为雅典将军福基昂立传,但两人根据各自的写作目的,塑造了完全不同的福基昂形象。奈波斯将福基昂描述成雅典的叛徒,通过分析他的政治失败来为读者提供历史教诲。普鲁塔克则出于道德教育和启示同胞的需要,将福基昂塑造成具有多种优良品德的道德典范和审慎务实的政治家。但两篇传记在内容上也有重合,反映出两人在写作手法上的相似性。奈波斯和普鲁塔克对福基昂的形象塑造,鲜明地表现出两人作品之间的区别和联系。

关键词：福基昂奈波斯普鲁塔克传记

Correlation between serum lipid profiles and cognitive impairment in old age:a cross-sectional study

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General Psychiatry 2023年第2期36卷 129-137页

作者： Yafu Yu Pingting Yan Guirong Cheng Dan Liu lang xu Mengliu Yang Heng xu Xi Cheng Pengfei Lian Yan Zeng Brain Science and Advanced Technology Institute Wuhan University of Science and Technology School of MedicineWuhanHubeiChina Xiangyang No.1 People's Hospital Affiliated to Hubei University of Medicine XiangyangHubeiChina Geriatric Hospital Affiliated to Wuhan University of Science and Technology WuhanHubeiChina

Background The correlation between cognitive function and lipid profiles,including total cholesterol,low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C)and triglycerides,is inconsistent.Aims This cross-sectional study investigated the association between serum lipid levels and the prevalence of cognitive impairment among community-dwelling older adults and explored this difference in association by gender and urban-rural residency.Methods Participants aged 65 and above in urban and rural areas were recruited between 2018 and 2020,selected from the Hubei Memory and Aging Cohort Study.Detailed neuropsychological evaluations,clinical examinations and laboratory tests were conducted in community health service centres.Multivariate logistic regression was used to analyse the correlation between serum lipid profiles and the prevalence of cognitive impairment.Results We identified 1336 cognitively impaired adults(≥65 years)-1066 with mild cognitive impairment and 270 with dementia-from 4746 participants.Triglycerides level was correlated with cognitive impairment in the total sample(χ2=6.420,p=0.011).In gender-stratified multivariate analysis,high triglycerides in males reduced the risk of cognitive impairment(OR:0.785,95%CI:0.623 to 0.989,p=0.040),and high LDL-C in females increased the risk of cognitive impairment(OR:1.282,95%CI:1.040 to 1.581,p=0.020).In both gender-stratified and urban-rural stratified multivariate analyses,high triglycerides reduced the risk of cognitive impairment in older urban men(OR:0.734,95%CI:0.551 to 0.977,p=0.034),and high LDL-C increased the risk of cognitive impairment in older rural women(OR:1.830,95%CI:1.119 to 2.991,p=0.016).Conclusions There are gender and urban-rural differences in the correlation of serum lipids with cognitive impairment.High triglycerides levels may be a protective factor for cognitive function in older urban men,while high LDL-C levels may be a risk factor for cognitive function in older rural women.

关键词： impairment impaired protective

Standard-definition White-light,High-definition White-light versus Narrow-band Imaging Endoscopy for Detecting Colorectal Adenomas:A Multicenter Randomized Controlled Trial

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Current Medical Science 2024年第3期44卷 554-560页

作者： Chang-wei DUAN Hui-hong ZHAI Hui XIE Xian-zong MA Dong-liang YU lang YANG Xin WANG Yu-fen TANG Jie ZHANG Hui SU Jian-qiu SHENG Jun-feng xu Peng JIN Chinese PLA General Hospital and Medical School Beijing100853China Department of Gastroenterology Xuanwu HospitalCapital Medical UniversityBeijing100053China Department of Gastroenterology The Seventh Medical Center of Chinese PLA General HospitalBeijing100700China Senior Department of Gastroenterology The First Medical Center of Chinese PLA General HospitalBeijing100853China

Objective This study aimed to compare the performance of standard-definition white-light endoscopy(SD-WL),high-definition white-light endoscopy(HD-WL),and high-definition narrow-band imaging(HD-NBI)in detecting colorectal lesions in the Chinese population.Methods This was a multicenter,single-blind,randomized,controlled trial with a non-inferiority design.Patients undergoing endoscopy for physical examination,screening,and surveillance were enrolled from July 2017 to December 2020.The primary outcome measure was the adenoma detection rate(ADR),defined as the proportion of patients with at least one adenoma detected.The associated factors for detecting adenomas were assessed using univariate and multivariate logistic regression.Results Out of 653 eligible patients enrolled,data from 596 patients were analyzed.The ADRs were 34.5%in the SD-WL group,33.5%in the HD-WL group,and 37.5%in the HD-NBI group(P=0.72).The advanced neoplasm detection rates(ANDRs)in the three arms were 17.1%,15.5%,and 10.4%(P=0.17).No significant differences were found between the SD group and HD group regarding ADR or ANDR(ADR:34.5%vs.35.6%,P=0.79;ANDR:17.1%vs.13.0%,P=0.16,respectively).Similar results were observed between the HD-WL group and HD-NBI group(ADR:33.5%vs.37.7%,P=0.45;ANDR:15.5%vs.10.4%,P=0.18,respectively).In the univariate and multivariate logistic regression analyses,neither HD-WL nor HD-NBI led to a significant difference in overall adenoma detection compared to SD-WL(HD-WL:OR 0.91,P=0.69;HD-NBI:OR 1.15,P=0.80).Conclusion HD-NBI and HD-WL are comparable to SD-WL for overall adenoma detection among Chinese outpatients.It can be concluded that HD-NBI or HD-WL is not superior to SD-WL,but more effective instruction may be needed to guide the selection of different endoscopic methods in the future.Our study’s conclusions may aid in the efficient allocation and utilization of limited colonoscopy resources,especially advanced imaging technologies.

关键词： standard-definition white-light endoscopy high-definition white-light endoscopy narrow-band imaging colonoscopy colorectal cancer screening adenoma detection rate

计及光伏不确定性的多区域综合能源系统多场景分布鲁棒优化调度

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太阳能学报 2024年第3期45卷 460-469页

作者：郑诗程许浩郎佳红夏慧安徽工业大学电气与信息工程学院马鞍山243002

为降低光伏出力不确定性对多区域综合能源系统(IES)经济性与安全性的影响以及提升多区域IES系统在多种极端场景下的稳定运行能力,提出一种计及光伏出力不确定性的多区域综合能源系统多场景优化调度策略。针对光伏发电的不确定性,采用拉... 详细信息

为降低光伏出力不确定性对多区域综合能源系统(IES)经济性与安全性的影响以及提升多区域IES系统在多种极端场景下的稳定运行能力,提出一种计及光伏出力不确定性的多区域综合能源系统多场景优化调度策略。针对光伏发电的不确定性,采用拉丁超立方抽样和改进型人工蜂群K-均值聚类算法形成典型光伏场景集。根据供热管道热特性和热能传输动态特性建立热网络模型。融合光伏场景信息,分别将日前阶段的运行成本以及实时阶段最恶劣光伏场景下系统的调整成本作为优化目标,构建两阶段分布鲁棒优化调度模型。采用列与约束生成(C&CG)算法对两阶段模型进行求解。最后,通过算例验证了所提策略的正确性和可行性。

关键词：可再生能源不确定性分析调度算法多区域综合能源系统多场景分布鲁棒优化

电动重卡替代柴油重卡的全生命周期碳减排效益分析

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环境科学 2024年第5期45卷 3119-3128页

作者：徐圆圆龚德鸿黄正光杨浪贵州大学电气工程学院贵阳550025

为精准预测电动重卡替代柴油重卡的全生命周期碳减排效益,以单辆重卡为对象,通过预测2023~2050年的电力和柴油碳排放因子变化特性,耦合两类重卡寿命及生命周期行驶里程,分阶段构建了重卡动态碳排放模型,深入分析了“2050年净零排放(NZE... 详细信息

为精准预测电动重卡替代柴油重卡的全生命周期碳减排效益,以单辆重卡为对象,通过预测2023~2050年的电力和柴油碳排放因子变化特性,耦合两类重卡寿命及生命周期行驶里程,分阶段构建了重卡动态碳排放模型,深入分析了“2050年净零排放(NZE)情景”、“承诺目标(APS)情景”和“既定政策(STEPS)情景”下两类重卡的碳排放足迹,并计算碳减排量和碳减排率.结果表明,电池生产和电池回收是分别导致电动重卡生产阶段和拆解回收阶段碳减排效益不佳的重要因素.电力碳排放因子(以CO_(2)计)每降低1 g·(kW·h)^(−1),电动重卡全生命周期碳排放可减少1.74 t.3种情景下,两类重卡运行阶段碳排放均占全生命周期碳排放总量的90%以上.碳减排效益由高到低的情景依次为NZE、APS和STEPS,其对应的全生命周期碳减排量分别为1054.68、1021.78和1007.97 t,碳减排率分别为54.38%、52.68%和51.97%.

关键词：重卡碳排放因子动态模型情景分析碳排放全生命周期