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geoacoustic inversion in shallow water by matching the vertical-particle-velocity

Chinese Journal of Acoustics 2023年第3期42卷 288-306页

作者： TAN Peng SUN Mei QIN jixing YANG Desen Acoustic Science and Technology Laboratory Harbin Engineering UniversityHarbin 150001 Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University) Ministry of Industry and Information TechnologyHarbin 150001 College of Underwater Acoustic Engineering Harbin Engineering UniversityHarbin 150001 School of Physics and Electronic Engineering Taishan UniversityTaian 271000 State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencessBeijing 100190

Bottom acoustic parameters are vital for studying sound propagation properties and their applications in ocean *** propagation properties and normal-mode structure of vertical-particle-velocity in an ocean environment with a thermocline in shallow water were studied in the Yellow *** Results reveal that high energy of the verticalparticle-velocity exists at most depth except for near-bottom depth when the source and receiver are both below the ***,high-order modes contribute more to the verticalparticle-velocity and vertical-particle-velocity-based matched-field-processing(MFP)inversion method can be highly sensitive to bottom parameters compared to sound ***,the effects of the bottom absorption coefficient on the vertical-particle-velocity-based MFP inversion method are *** is shown that accurate sound velocity,density and water depth can be obtained only when the bottom absorption coefficient is set close to the real value during *** using the vertical-particle-velocity signals recorded by vector hydrophones during the experiment and determining the bottom sound velocity,bottom density and water depth under different bottom absorption coefficients,stable inversion results were *** transmission losses of the sound pressure at different ranges were used to invert the bottom absorption *** transmission losses of sound pressure calculated using the inverted bottom parameters are consistent with the experimental results obtained from the pressure hydrophones in the experiment.

关键词： shallow ocean particle

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Review of Ampharete Malmgren, 1866 (Annelida, Ampharetidae) from China

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Journal of Oceanology and Limnology 2020年第5期38卷 1584-1589页

作者： SUI jixing LI Xinzheng Institute of Oceanology Chinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

In this paper,the material of the genus Ampharete Malmgren,1866 from China Seas(Annelida:Ampharetidae)deposited in the collections of the Marine Biological Museum of the Chinese Academy of Sciences(MBMCAS)is reviewed and previous identifi cations *** total,four species were found among all specimens *** previously attributed to ***(Grube,1860)and *** Malmgren,1866 had been misidentifi ed and is now confi rmed as belonging to *** Hessle,1917 and *** nmarchica(Sars,1865),respectively;the presence of *** Eliason,1955 is also confi rmed;***(Annenkova,1929)is recorded for the fi rst time from China.

关键词： Ampharete Polychaeta taxonomy China

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荞麦乳酸菌发酵工艺优化及挥发性物质分析

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食品安全导刊 2024年第5期 129-134,140页

作者：马爽张继星王华靳亚楠陈馨雨齐景凯内蒙古民族大学生命科学与食品学院内蒙古通辽028000 内蒙古民族大学荞麦产业工程研究中心内蒙古通辽028000

为了提高荞麦利用率,以甜荞麦粉为原料,通过单因素实验和响应面实验对荞麦发酵工艺进行优化,并采用气质联用技术对发酵前后的挥发性物质进行分析。结果表明,最佳发酵条件为发酵时间36 h、发酵温度42℃、菌种接种量3%、植物乳杆菌HH-LP5... 详细信息

为了提高荞麦利用率,以甜荞麦粉为原料,通过单因素实验和响应面实验对荞麦发酵工艺进行优化,并采用气质联用技术对发酵前后的挥发性物质进行分析。结果表明,最佳发酵条件为发酵时间36 h、发酵温度42℃、菌种接种量3%、植物乳杆菌HH-LP56和嗜热链球菌HH-ST08菌种体积比1∶1,在此条件下荞麦发酵液总黄酮含量为(44.603±0.219)mg/100 g,发酵液呈淡黄色,具有特殊的粮食香味。发酵后荞麦发酵液的挥发性物质中酯类、醇类、烷类、酸类含量升高,烯类和酮类含量下降。说明乳酸菌发酵不仅可以提高荞麦利用率,还可以丰富荞麦的风味,为荞麦食品的研究提供了参考。

关键词：荞麦乳酸菌发酵响应面法挥发性物质

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基于GIS+BIM+倾斜摄影的水电站外部变形智能监测系统

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西北水电 2024年第2期 106-112页

作者：杜文生易广军王小勇高帅贺继兴中国电建集团西北勘测设计研究院有限公司西安710065

为了解决水电站工程安全监测指标在空间和时间维度上无法标记、预警和跟踪困难的问题,以GIS+BIM+倾斜摄影集成技术理念为支撑,以DDD领域驱动设计体系为框架指引,开发了一种水电站外部变形智能监测系统,并在龙羊峡水电站进行实证,结果表... 详细信息

为了解决水电站工程安全监测指标在空间和时间维度上无法标记、预警和跟踪困难的问题,以GIS+BIM+倾斜摄影集成技术理念为支撑,以DDD领域驱动设计体系为框架指引,开发了一种水电站外部变形智能监测系统,并在龙羊峡水电站进行实证,结果表明:该水电站外部变形智能监测系统,可直观呈现工程面貌,并融合智能测站、GNSS、谷幅弦线等自动化设备动态采集呈现数据,实现了全景漫游、多项目视角切换、测点导航、控制网网形演示,测点模型根据实时设备状态动态运行、闪烁报警,能够对水电站安全进行实时监测、精准预测和智能预警。

关键词：水电站安全监测 GIS+BIM 倾斜摄影

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Mongolian medicine in treating type 2 diabetes mellitus combined with nonalcoholic fatty liver disease via FXR/LXR-mediated P2X7R/NLRP3/NF-κB pathway activation

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Chinese Herbal Medicines 2022年第3期14卷 367-375页

作者： Shuyin Bao Xiuzhi Wang Qianqian Ma Chengxi Wei jixing Nan Wuliji Ao Institute of Pharmaceutical Chemistry and Pharmacology Inner Mongolia Minzu UniversityTongliao 028000China Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System Tongliao 028000China Department of Medicines and Foods Tongliao Vocational CollegeTongliao 028000China Jilin Key Laboratory for Traditional Chinese Korean Medicine College of PharmacyYanbian UniversityYanji 133002China Research and development center Inner Mongolia Research Institute of Traditional Mongolian Medicine Engineering TechnologyTongliao 028000China Mongolian Medicine R&D National Local Union Engineering Research Center Inner Mongolia Minzu UniversityTongliao 028000China

Type 2 diabetes mellitus(T2DM)and nonalcoholic fatty liver disease(NAFLD)are the most problematic metabolic diseases in the *** encompasses a spectrum of severity,ranging from simple steatosis to non-alcoholic steatohepatitis(NASH)and fibrosis,increasing the risk of cirrhosis and hepatocellular ***,NAFLD is closely linked to obesity and tightly interrelated with insulin resistance and T2DM.T2DM and NAFLD(T2DM-NAFLD)are called as the Xike Rixijing Disease and Tonglaga Indigestion Disease respectively,in Mongolian *** Rixijing Disease maybe develop into Tonglaga Indigestion *** many Mongolian medicines show efficient treatment of T2DM-NAFLD,such as Agriophyllum squarrosum,Haliyasu(dried powder of camel placenta),Digeda-4(herbs of Lomatogonium carinthiacum,rhizomata of Coptis chinensis,ripe fruits of Gardenia jasminoides,herbs of Dianthus superbus),Guangmingyan Siwei Decoction Powder(Halite,ripe fruits of Terminalia chebula,rhizomata of Zingiber officinale,fruit clusters of Piper longum),Tonglaga-5(ripe fruits of Punica granatum,barks of Cinnamomum cassia,ripe fruits of Amomum kravanh,fruit clusters of Piper longum,fowers of Carthamus tinctorius),Tegexidegeqi(rhizomata of Inula helenium,ripe fruits of Gardenia jasminoides,rhizomata of Platycodon grandiflorum,rhizomata of Coptis chinensis,heartwood of Caesalpinia sappan),Ligan Shiliu Bawei San(ripe fruits of Punica granatum,barks of Cinnamomum cassia,ripe fruits of Amomum kravanh,fruit clusters of Piper longum,fowers of Carthamus tinctorius,ripe fruits of Amomum tsao-ko,rhizomata of Zingiber officinale),*** of Mongolian medicine in treating diseases:by balancing“three essences or roots”and“seven elements”,strengthening liver and kidney function,transporting nutrients to enhance physical strength and disease resistance,and combined with drugs for comprehensive conditioning ***,their molecular mechanisms remain *** this review,we prospect

关键词： Mongolian medicine nonalcoholic fatty liver disease type 2 diabetes mellitus Xike Rixijing Disease

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Engineering the electronic and geometric structure of VO_(x)/BN@TiO_(2)heterostructure for efficient aerobic oxidative desulfurization

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Frontiers of Chemical Science and Engineering 2023年第3期17卷 276-287页

作者： Lu Zhang jixing Liu Deqi Huang Wenfeng Zhang Linjie Lu Mingqing Hua Hui Liu Huifang Cheng Huaming Li Wenshuai Zhu School of Chemistry and Chemical Engineering Institution for Energy ResearchJiangsu UniversityZhenjiang 212013China College of Chemical Engineering Yangzhou Polytechnic InstituteYangzhou 225127China

Particle size governs the electronic and geometric structure of metal nanoparticles(NPs),shaping their catalytic performances in heterogeneous ***,precisely controlling the size of active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative desulfurization(ODS)***,a series of highly-efficient VO_(x)/boron nitride nanosheets(BNNS)@TiO_(2)heterostructures,therein,cetyltrimethylammonium bromide cationic surfactants serving as intercalation agent,BNNS and MXene as precursors,with various VO_(x)NP sizes were designed and controllably constructed by a facile intercalation confinement *** properties and structures of the prepared catalysts were systematically characterized by different technical methods,and their catalytic activities were investigated for aerobic ODS of dibenzothiophene(DBT).The results show that the size of VO_(x)NPs and V^(5+)/V^(4+)play decisive roles in the catalytic aerobic ODS of VO_(x)/BNNS@TiO_(2)catalysts and that VO_(x)/BNNS@TiO_(2)-2 exhibits the highest ODS activity with 93.7%DBT conversion within 60 min under the reaction temperature of 130℃and oxygen flow rate of 200 mL·min-1,which is due to its optimal VO_(x)dispersion,excellent reducibility and abundant active ***,the finding here may contribute to the fundamental understanding of structure-activity in ultradeep ODS and inspire the advancement of highly-efficient catalyst.

关键词： oxidative desulfurization boron nitride vanadium MXene intercalation confinement

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断层的地电响应特征及其在砂岩型铀矿地质解译中的作用——以巴楚隆起地区为例

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铀矿地质 2024年第4期40卷 765-772页

作者：王恒程纪星胡英才陈闫陈汉波张濡亮核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室北京100029 吉林大学地球探测科学与技术学院吉林长春130061 桂林理工大学地球科学学院广西桂林541006

砂岩型铀矿成矿理论认为,适宜的构造斜坡带可发展为有利的铀成矿区。斜坡带内受重力、挤压等因素形成的断裂对铀成矿和保矿都有非常重要的作用。北方沉积盆地内,利用大地电磁法进行断裂解译的精度不仅受沉积地层绝对电阻率的影响,也受... 详细信息

砂岩型铀矿成矿理论认为,适宜的构造斜坡带可发展为有利的铀成矿区。斜坡带内受重力、挤压等因素形成的断裂对铀成矿和保矿都有非常重要的作用。北方沉积盆地内,利用大地电磁法进行断裂解译的精度不仅受沉积地层绝对电阻率的影响,也受地层间相对电阻率影响。为准确解译隐伏断裂,建立了不同电性差异下的正、逆断层地电模型,正反演模拟了不同电阻率差异及不同性质断层模型的一维、二维反演电阻率断面。正反演模拟结果表明:正、逆断层在反演地电断面上具有不同的特征,即正断层在断层斜面处呈倾斜形态,而逆断层在断层斜面处呈凹陷形态;一维反演结果对断裂的识别效果要优于二维反演结果。通过断层地电相应特征规律的总结,为巴楚隆起西部凹陷大地电磁剖面隐伏断裂的解译提供了依据与指导。

关键词：巴楚隆起断层模拟电磁测深地电断面

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Pharmacokinetics of Enrofloxacin and Its Metabolite in Carp (Cyprinus carpio) After a Single Oral Administration in Medicated Feed

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Journal of Ocean University of China 2023年第1期22卷 171-180页

作者： LIU Ying LI Zhaoxin ZHANG Dahai XING Lihong SUN Weihong SUN Xiaojie PENG jixing ZHANG Yonggang LI Xianguo College of Chemistry and Chemical Engineering Ocean University of ChinaQingdao 266100China Qingdao Fishery Technology Service Station Qingdao 266071China Qingdao Marine Management Support Center Qingdao 266071China Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality Laboratory of Quality&Safety Risk Assessment for Aquatic ProductsMinistry of Agriculture and Rural AffairsYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China

A precise and reliable analytical method of high performance liquid chromatography-tandem mass spectrometry(HPLCMS/MS)was developed to measure trace levels of enrofloxacin(ENR)and its major metabolite ciprofloxacin(CIP)in carp *** chromatographic separation was obtained on a Waters Xterra MS C_(18) reversed-phase column using gradient elution with methanol and 0.1%formic acid aqueous solution including 5mmolL^(-1) of ammonium *** established method was applied to study the pharmacokinetics and distribution of ENR and CIP in tissues of carp following a single oral administration in feed at a dosage of 40mgkg^(-1) bw(body weight).Data were analyzed using DAS 2.0 dynamics software,and the experimental results suggest that ENR was rapidly absorbed and extensively distributed in carp tissues through systemic circulation,and the pharmacokinetic characteristics can be described with a two-compartment *** elimination half-lives(t_(1/2β))from muscle,liver,gill,plasma and skin were 131,160,104,132 and 310 h,*** areas under the drug concentration-time curves(AUC)for these tissues were 491,972,750,249 and 706hmgkg^(-1),*** maximum concentration(C_(max))values were 13,29,37,9 and 5mgkg^(-1) with peak times(t_(max))of 8,4,4,2 and 4 h,***,the active metabolite of ENR,was also detected in carp tissues,indicating that only 1.54%of de-ethylation of ENR occurs in *** a water temperature of 18℃,the drug withdrawal time was determined to be no less than 24 d while the carp was fed at a single dosage of 40mgkg^(-1).

关键词： Cyprinus carpio enrofloxacin ciprofloxacin pharmacokinetics liquid chromatography-tandem mass spectrometry

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Experimental analysis of acoustic propagation and source localization based on the underwater acoustic glider in Eastern Indian Ocean

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Chinese Journal of Acoustics 2022年第3期41卷 195-211页

作者： WU Yushen LI Zhenglin QIN jixing WU Shuanglin WANG Guangxu State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of Sciences Beijing 100190 College of Physical Science University of Chinese Academy of Sciences Beijing 100049

In order to acquire hydrologic and acoustic information at the same time,the underwater glider is used as a synchro observing platform and an algorithm of source localization estimation based on the glider in deep water is *** hydrologic and acoustic data acquired by the glider in the Eastern Indian Ocean are used to analyze the self-noise of the glider and the characteristics of acoustics signal *** underwater track of the glider is updated by using underwater dead *** to the time delay of the received signals,the underwater sound source localization estimation is *** results indicate that the self-noise of the glider is quite close to the ambient noise at the no-motor *** sound transmission losses(TLs)of experiment and simulation are in great *** estimation results of underwater sound source localization are consistent with measurement and the estimation error is less than 5%.The glider loaded with self-contained hydrophones can get hydrologic and acoustic information at the same time,which is important for the acoustic propagation analysis and target localization.

关键词： underwater estimation propagation

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观察经皮空心螺钉及钢板内固定在踝关节骨折治疗中的效果及对踝关节功能的影响

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智慧健康 2024年第12期10卷 127-130页

作者：任利强黄继兴胡牮邱龙祥严益军昆山市第四人民医院江苏昆山215300

目的观察经皮空心螺钉及钢板内固定在踝关节骨折治疗中的效果及对踝关节功能的影响。方法选取昆山市第四人民医院2018年1月—2022年12月收治的60例踝关节骨折患者为研究对象,并按照不同的手术治疗方法分为对照组和研究组,每组30例。其中... 详细信息

目的观察经皮空心螺钉及钢板内固定在踝关节骨折治疗中的效果及对踝关节功能的影响。方法选取昆山市第四人民医院2018年1月—2022年12月收治的60例踝关节骨折患者为研究对象,并按照不同的手术治疗方法分为对照组和研究组,每组30例。其中,对照组采用切开复位钢板内固定术,研究组采用经皮空心螺钉+钢板内固定治疗。对比两组临床指标、安全性、关节功能。结果研究组术中出血量、手术时间均短于对照组,术后下床行走时间、住院时间和骨折愈合时间均短于对照组,组间差异有统计学意义(P<0.05)。研究组术后并发症发生率低于对照组,组间差异有统计学意义(P<0.05)。术后3个月时,研究组踝关节Kofoed评分可见优势,各方面评分相较于对照组均有统计学意义(P<0.05)。结论经皮空心螺钉及钢板内固定治疗踝关节骨折疗效显著,可提高手术效率并促进术后康复进程,可减轻患者疼痛和手术损伤,有助于踝关节功能、活动度的全面恢复。

关键词：经皮空心螺钉内固定钢板内固定踝关节骨折踝关节功能

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