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Differences in and factors controlling organic matter enrichment in the Ziliujing Formation s.a.e in the sichuan Basin

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Petroleum science 2024年第1期21卷 77-86页

作者： peng Li Zhong-Bao Liu He bi Tao Jiang Rui-Kang bian peng-Wei Wang Xiao-Yu s.a.g s.a.e Key Laboratory of s.a.e Oil and Gas Enrichment Mechanisms.a.d Efficient Development Beijing102206China Key Laboratory of s.a.e Oil/Gas Exploration and Production Technology SINOPECBeijing102206China Petroleum Exploration and Production Res.a.ch Institute SINOPECBeijing102206China Res.a.ch Institute of Petroleum Exploration and Development PetroChinaBeijing100083China Chinese Academy of Geological sciences Beijing100037China No.4 Oil Production Plant in Daqing Oilfield Co Ltd. Daqing163511HeilongjiangChina

Lacustrine s.a.e oil and gas.a.e important fields for unconventional exploration and development in China,and organic-rich s.a.e deposition lays down the critical foundation for hydrocarbon *** are two sets of s.a.e,the Dongyuemiao and Da’anzhai Members,in the Ziliujing Formation in the sichuan *** identify the differential enrichment characteristics of organic matter and clarify its controlling factors,geochemical analyses of organic and inorganic geochemical analyses were *** results showed that the total organic carbon content of the Dongyuemiao s.a.e(1.36%)is slightly higher than that of the Da’anzhai s.a.e(0.95%).The enrichment of organic matter in the two s.a.es resulted from the comprehensive controls of paleoproductivity,paleoenvironment,and terrigenous input,but different factors have different *** addition,driven by climate,the change in the sulfate concentration in the bottom water further led to the different intensities of bacterial sulfate reduction in early *** made a great difference regarding organic matter accumulation in the two *** general,climate may have played a dominant role in organic matter enrichment in the two sets of s.a.e.

关键词： Lacustrine s.a.e Ziliujing Formation sichuan Basin Enrichment mechanism of organic matter

Cons.a.t charge method or cons.a.t potential method:Which is better for molecular modeling of electrical double layers?

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Journal of Energy Chemistry 2024年第7期94卷 54-60页

作者： Liang Zeng Xi Tan Xiangyu Ji shiqi Li Jinkai Zhang Jiaxing peng sheng bi Guang Feng s.a.e Key Laboratory of Coal Combustion Schoolof Energy and PowerEngineeringHuazhong Universityof Science and Technology(HUST)Wuhan 430074HubeiChina sorbonne Universite CNRSPhysico-chimie des Electrolytes et Nanosystemes InterfaciauxPHENIXF-75005 ParisFrance

In molecular modeling of electrical double layers(EDLs),the cons.a.t charge method(CCM)is prized for its computational efficiency but cannot maintain electrode equipotentiality like the more resourceintensive cons.a.t potential method(CPM),potentially leading to *** certain scenarios,CCM can yield results identical to ***,there are no clear guidelines to determine when CCM is sufficient and when CPM is ***,we conduct a series of molecular simulations.a.ross various electrodes.a.d electrolytes to present a comprehensive comparison between CCM and CPM under different charging *** reveal that CCM approximates CPM effectively in capturing equilibrium EDL and current-driven dynamics in open electrode systems featuring ionic liquids or regular concentration aqueous electrolytes,while CPM is indispensable in scenarios involving organic and highly concentrated aqueous electrolytes,nanoconfinement effects.a.d voltage-driven *** work helps to select appropriate methods for modeling EDL systems,prioritizing accuracy while considering computationalefficiency.

关键词： Electrochemical interface Molecular dynamics Electrode polarization modeling Nanoconfinement effect

Experimental and numerical simulation study on the erosion behavior of the elbow of gathering pipeline in s.a.e gas field

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Petroleum science 2024年第2期21卷 1257-1274页

作者： En-bin Liu shen Huang Ding-Chao Tian Lai-Min shi s.a.-bi peng He Zheng Petroleum Engineering school Southwest Petroleum UniversityChengdu 610500SichuanChina Chongqing Natural Gas sales Center Natural Gas BranchSinopecChongqing400023China Zhejiang Zheneng Natural Gas Operation Co. Ltd.Hangzhou 310000ZhejiangChina school of Civil Engineering and Architecture Southwest Petroleum UniversityChengdu 610500SichuanChina Louis.a.a Tech Univ Trenchless Technol Ctr599 Dan Reneau DrRustonLA71270USA southwest Oil and Gas Field Branch Natural Gas Res.a.ch Institute Chengdu 610213SichuanChina

During the production period of s.a.e gas, proppant particles.a.d rock debris.a.e produced together,which will seriously erode the elbows of gathering pipelines. In response to this problem, this paper takes the elbow of the gathering pipeline in the Changning s.a.e Gas Field as.a. example to test the erosion rate and material removal mechanism of the test piece at different angles of the elbow through experiments.a.d compares the four erosion models with the experimental results. Through analysis, it is found that the best prediction model for quartz sand-carbon steel erosion is the Oka model. Based on the Oka model, FLUENT software was used to simulate and analyze the law of erosion of the elbow of the gas gathering pipeline under different gas flow velocities, gas gathering pressure, particle size, length of L1,and bending directions of the elbow. And a spiral pipeline structure is proposed to reduce the erosion rate of the elbow under the same working conditions. The results show that this structure can reduce erosion by 34%.

关键词： s.a.e gas Gas gathering pipeline Elbow Erosion CFD

Early changes in corneal densitometry after Fs-LAsIK combined with accelerated corneal cross-linking for correction of high myopia

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International Journal of Ophthalmology(English edition) 2024年第7期17卷 1307-1312页

作者： Qing-Bao Wang Hong-sheng bi Xiao-Fan Wang Hua Fan Li Li peng Ji s.a.dong University of Traditional Chinese Medicine Jinan 250014Shandong ProvinceChina Affiliated Eye Hospital of s.a.dong University of Traditional Chinese Medicine Shandong Clinical Medicine Research CenterJinan 250002Shandong ProvinceChina s.a.dong Academy of Eye Dis.a.e Prevention and Therapy Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular DiseasesJinan 250002Shandong ProvinceChina

AIM:To observe the effects of femtosecond laserassisted excimer laser in situ keratomileusis combined with accelerated corneal cross-linking(Fs-LAsIK Xtra)on corneal densitometry after correcting for high ***:In this prospectively study,130 patients underwent Fs-LAsIK or Fs-LAsIK Xtra for high *** right eyes were selected for inclusion in the study,of which 65 cases of 65 eyes in the Fs-LAsIK group,65 patients with 65 eyes in the Fs-LAsIK Xtra *** were evaluated for corneal densitometry at 1,3,and 6mo postoperatively using Pentacam scheimpflug ***:Preoperative differences in corneal densitometry between the Fs-LAsIK and Fs-LAsIK Xtra groups in different ranges were not s.a.istically significant(P>0.05).Layer-by-layer analysis revealed s.a.istically significant differences in the anterior(120μm),central,and total layer corneal densitometry between the Fs-LAsIK and Fs-LAsIK Xtra groups.a. 1 and 3mo postoperatively(all Ps-LAsIK Xtra group is higher than that of the Fs-LAsIK *** of different diameter ranges showed s.a.istically significant differences between the Fs-LAsIK group and the Fs-LAsIK Xtra group at 1mo postoperatively in the ranges of 0–2,2–6,and 6–10 mm(both Pstoperatively,the Fs-LAsIK Xtra group is higher than that of the Fs-LAsIK group in the ranges of 0–2 and 2–6 mm(Pstoperatively,there were no s.a.istically significant differences in corneal densitometry between the Fs-LAsIK group and the Fs-LAsIK Xtra group in different diameter ranges.a.l P>0.05).CONCLUsION:There is.a. increase in internal corneal densitometry during the early postoperative period after Fs-LAsIK Xtra for correction of high ***,the densitometry values decreased to the level of conventional Fs-LAsIK at 6mo after surgery,with the most significant changes observed in the superficial central zone.

关键词： femtosecond laser accelerated corneal cross-linking corneal densitometry high myopia femtosecond laser in situ keratomileusis

Effect of different drying methods on the amino acids,α-dicarbonyls.a.d volatile compounds of rape bee pollen

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Food science and Human Wellness 2024年第1期13卷 517-527页

作者： Yanxiang bi Jiabao Ni Xiaofeng Xue Zidan Zhou Wenli Tian Valérie Orsat s.a.Yan Wenjun peng Xiaoming Fang s.a.e Key Laboratory of Resource Insects Institute of Apicultural ResearchChinese Academy of Agricultural SciencesBeijing 100093China College of Engineering China Agricultural UniversityBeijing 100083China bioresource Engineering Dept. McGill UniversitySte-Anne-de-Bellevue QC H9X 3V9Canada

The significant demand for high quality food has motivated us to adopt appropriate processing methods to improve the food nutritional quality and *** this study,the effects of five drying methods,namely,pulsed vacuum drying(PVD),freeze drying(FD),infrared drying(IRD),hot-air drying(HAD)and sun drying(sD)on free amino acids(FAAs),α-dicarbonyl compounds(α-DCs.a.d volatile compounds(VOCs)in rape bee pollen(RBP)were *** results showed that FD significantly released the essential amino acids(EAAs)compared with fresh samples while sD caused the highest *** was the dominantα-DCs in RBP and the highest loss was observed after *** were the dominant volatiles of RBP and sD samples contained more new volatile subs.a.ces(especially aldehydes)than the other four drying ***,FD and PVD would be potential methods to effectively reduce the quality deterioration of RBP in the drying process.

关键词： Drying Bee pollen Free amino acids α-Dicarbonyl compounds Volatile compounds

The acceptance of traditional Chinese medicine among patients with Parkinson's dis.a.e:A hospital survey

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Journal of Integrative Medicine 2024年第2期22卷 180-187页

作者： peng Wang Jing Hong Zhu-qian Tang bi-zhen Gong Xiao-rong Qi Han Jiang Bo Pan Qi Chen Postgraduate school Medical School of Chinese People’s Liberation ArmyBeijing 100853China senior Department of Traditional Chinese Medicine the Sixth Medical Center of PLA General HospitalBeijing 100853China Department of Integration of Chinese and Western Medicine School of Basic Medical SciencesPeking UniversityBeijing 100191China Department of Integrative Oncology the First Affiliated Hospital of Naval Medical UniversityShanghai 200433China school of Traditional Chinese Medicine Naval Medical UniversityShanghai 200433China school of Pharmacy Nanjing University of Chinese MedicineNanjing 210023Jiangsu ProvinceChina Department of Dermatology the First Clinical Medical CollegeAnhui University of Chinese MedicineHefei 230012Anhui ProvinceChina

Objective:The efficacy of medications for Parkinson’s dis.a.e(PD)tend to decline over time,which has.a.serious impact on patients’health and quality of *** some extent,traditional Chinese medicine(TCM)can resolve the distressing problem of ineffective dopaminergic medication in PD *** purpose of this study was to investigate the attitude,acceptance,and independent predictors of TCM in PD patients.a.mitted to the outpatient department of a tertiary ***:A cross-sectional study of PD patients was conducted in the outpatient department of a large tertiary hospital in Beijing from March 2022 to June 2023.A self-report questionnaire was developed to investigate PD patients.a.titudes.a.d acceptance of TCM based on the *** logistic regression analyses were also performed to further clarify the independent predictors influencing patients.a.option of TCM ***:A total of 397 patients completed the questionnaire,of which 78.09%were willing to be treated with TCM and 21.91%indicated that they were not willing to use *** logistic regression analysis showed that several parameters were correlated with a patient’s willingness to include TCM in their therapeutic *** included education level of a bachelor’s degree(odds ratio[OR)=8.554;95%confidence interval[CI]:4.112–17.794;Ps junior high school education),living in an urban setting(OR=8.022;95%CI:4.577–14.060;Ps rural),having other underlying dis.a.es(OR=5.126;95%CI:3.078–8.537;Ps none),having previously used TCM(OR=3.083;95%CI:1.852–5.134;Ps not used),believing that TCM therapy is safe(OR=3.530;95%CI:1.446–8.616;P=0.006,vs not thought),believing that TCM therapy is effective(OR=3.859;95%CI:1.482–10.047;P=0.006,vs not understood),and being willing to discuss ongoing TCM therapy with an attending physician(OR=62.468;95%CI:30.350–128.574;Ps not informed).Conclusion:This study initially investigated the acceptance

关键词： Parkinson's dis.a.e Traditional Chinese medicine Cross-sectional study

On the analytical soliton approximations to fractional forced Korteweg-de Vries equation arising in fluids.a.d plas.a. using two novel techniques

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Communications in Theoretical Physics 2024年第8期76卷 1-10页

作者： Weaam Alhejaili Emad A Az-Zo’bi Rasool s.a. s.a.El-Tantawy Department of Mathematical sciences College of SciencePrincess Nourah bint Abdulrahman UniversityPO Box 84428Riyadh 11671Saudi Arabia Department Mathematics.a.d s.a.istics Mutah UniversityAl-KarakJordan Department of Computer science and Mathematics Lebanese American UniversityBeirutLebanon Department of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt Department of Physics Faculty of ScienceAl-Baha UniversityAl-Baha P.O.Box 1988Saudi Arabia

The current investigation examines the fractional forced Korteweg-de Vries(FF-KdV) equation,a critically significant evolution equation in various nonlinear branches of science. The equation in question and other associated equations.a.e widely acknowledged for their broad applicability and potential for simulating a wide range of nonlinear phenomena in fluid physics, plas.a.physics, and various scientific domains. Consequently, the main goal of this study is to use the Yang homotopy perturbation method and the Yang transform decomposition method, along with the Caputo operator for analyzing the FF-KdV equation. The derived approximations.a.e numerically examined and discussed. Our study will show that the two suggested methods.a.e helpful, easy to use, and essential for looking at different nonlinear models that affect complex processes.

关键词： forced fractional KdV equation Caputo operator Yang homotopy perturbation method Yang transform decomposition method solitons

Preparation and Performance of Organically Modified Montmorillonite Composite separation Membrane

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Journal of Wuhan University of Technology(Materials science) 2024年第5期39卷 1100-1107页

作者： LIU peng bi Yuanyuan CHEN s.a.wei WAN Ye YU Yunwu FANG Yanfeng GU Yaxin LI Feihong TANG Ning LI Xiangyu school of Materials science and Engineering Shenyang Jianzhu UniversityShenyang 110168China

A new composite separation membrane was developed by using organically modified montmorillonite(OMMT)as.a. *** effects of OMMT on the modification and properties of PVDF composite membranes were *** is found that different kinds.a.d amounts of OMMT into the casting solution can obviously change the pure water flux,separation performance and hydrophilicity of composite membrane in varying *** the TA/PDA-MMT was 0.5 wt%,the pure water flux of the membrane reached the maximum,which was 584.7 L/(m^(2)·h),about 6 times that of the original *** OMMT/PVDF composite membrane had good hydrophilicity and s.a.ility in the treatment of oily *** development of novel OMMT/PVDF composite membrane will provide a new idea for solving the problem of oily wastewater treatment.

关键词： membrane montmorillonite composite wastewater

Laboratory studies on the infectivity of human respiratory viruses:Experimental conditions,detections.a.d resis.a.ce to the atmospheric environment

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Fundamental Res.a.ch 2024年第3期4卷 471-483页

作者： Yaohao Hu shuyi peng Bojiang su Tao Wang Juying Lin Wei sun Xiaodong Hu Guohua Zhang Xinming Wang Ping'an peng Xinhui bi s.a.e Key Laboratory of Organic Geochemistry and Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China University of Chinese Academy of sciences Beijing 100049China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou 510640China

The environmental s.a.ility of infectious viruses in the laboratory setting is crucial to the transmission potential of human respiratory *** experimental techniques or conditions used in studies over the past decades have led to diverse unders.a.dings.a.d predictions for the s.a.ility of viral infectivity in the atmospheric *** this paper,we review the current knowledge on the effect of simulated atmospheric conditions on the infectivity of respiratory viruses,mainly focusing on influenza viruses.a.d coronaviruses,including severe acute respiratory syndrome coronavirus 2 and Middle East respiratory syndrome ***,we summarize the impact of the experimental conditions on viral s.a.ility;these involve the methods of viral aerosol generation,storage during aging and collection,the virus types.a.d strains,the suspension matrixes,the initial inoculum volumes.a.d concentrations.a.d the drying ***,we summarize and discuss the detection methods of viral infectivity and their ***,we integrate the results from the reviewed studies to obtain an overall unders.a.ding of the effects of atmospheric environmental conditions on the decay of infectious viruses,especially aerosolized ***,this review highlights the knowledge gaps in predicting the ability of viruses to maintain infectivity during airborne transmission.

关键词： Respiratory viruses Viral infectivity Laboratory simulation Atmospheric environmental condition Airborne transmission