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Genesis and Accumulation of Paleo-Oil Reservoir in Dabei Area,Kuqa Depression,Northwest China:Implications for Tight-Gas Accumulation

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作者： Rika ITO tetsuya fujie Kenji SUYAMA Ryuichi HIRABAYASHI Tokyo University of Science University of Hyogo Tokyo DENKI University MEJIRO University

Since FIR ?lters can easily obtain a linear phase property, it is great useful in many ?elds. In this paper, we consider de- sign problems of linear phase FIR ?lter with Signed Power of Two (SP2) c

关键词： FIR ?lter CSD coe?cients SP2 coef- ?cients allocation optimization

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Journal of Earth Science 2024年第2期35卷 655-665页

作者： fujie Jiang Xiao Chen Pengwei Wang Xinghe Shao Haijun Yang State Energy Center for Shale Oil Research and Development Beijing102206China National Key Laboratory of Oil and Gas Resources and Engineering Beijing102249China College of Geosciences China University of PetroleumBeijing102249China CNOOC International Ltd. Beijing100027China Research Institute of Petroleum Exploration&Production SINOPECBeijing100083China Research Institute of Petroleum Exploration and Development Tarim OilfieldPetroChinaKorla841000China

Paleo-oil reservoir is of great importance to understand hydrocarbon enrichment mechanism and hydrocarbon exploration potential,but is yet poorly investigated in Kuqa *** occurrence of the paleo-oil reservoir in Dabei area was proved by quantitative grain fluorescence(QGF)and fluid inclusion *** history of the paleo-oil reservoir was reconstructed through:(1)oil-source correlation;(2)time coupling of source rock maturation,porosity evolution and migration *** impact of paleo-oil reservoir on tight-gas accumulation was consequently *** suggest that considerable oil was accumulated in the K_(1)bs reservoir with paleo oil-water contact in Dabei 2 Well and Dabei 201 Well at 5800 and 6040 m,*** oil was primarily sourced from Triassic source rocks with Jurassic source rocks of secondary importance,which was at oil generation window(0.7%–1.1%Ro)during 9–6 and 7.5–5 Ma,*** occurrence of K_(1)bs tight reservoir(porosity<12%)was about 25 Ma,while faults and associated fractures at Kelasue structural belt were developed approximately from 8 to 3.5 ***,the tight oil accumulation was formed during 8–5 *** paleo-oil reservoir in Dabei 1 gas field was destroyed by the evaporation fractionation in later stage.

关键词： Paleo-oil reservoir Dabei area Kuqa Depression Northwest China petroleum geology

Hatching and development of maize cyst nematode Heterodera zeae infecting different plant hosts

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Journal of Integrative Agriculture 2024年第5期23卷 1593-1603页

作者： Jiangkuan Cui Haohao Ren BoWang fujie Chang Xuehai Zhang Haoguang Meng Shijun Jiang Jihua Tang College of Plant Protection National Key Laboratory of Wheat and Maize Crop ScienceHenan Agricultural UniversityZhengzhou 450002China

The occurrence, distribution, and rapid molecular detection technology of Heterodera zeae Koshy et al. 1971, have been reported in China. We explored the biological characteristics of H. zeae sampled in Henan Province, China to understand its interaction with plants. Cysts and second-stage juveniles(J2s) were identified under an optical and scanning electron microscope, internal transcribed spacer(ITS) phylogenetic tree, and sequence characterized amplified region(SCAR)-PCR analyses. The optimum hatching temperatures of H. zeae were 30°C and 28°C, with cumulative hatching rates of 16.5 and 16.1%, respectively, at 30 days post-hatching(dph). The hatching rate of H. zeae eggs was improved by 20-and 50-time maize soil leachate and root juice, and 10-time root exudates. The hatching rate in 10-time root exudates was the highest(25.9%). The 10-time root exudates of maize and millet produced the highest hatching rate at 30 dph(25.9 and 22.9%, respectively), followed by wheat(19.9%), barley(18.3%), and rice(17.6%). Heterodera zeae developed faster in maize than in other crops. Fourth-stage juveniles(J4s) were detected in maize roots 8 days post-inoculation(dpi) at 28°C but not in other crops. Combined with hatching tests, the Huang–Huai–Hai summer maize region and the south and central-southwest mountainous maize areas are highly suitable for H. zeae in China. This is the first systematically study of the hatching and infection characteristics on different plant hosts of corn cyst nematode H. zeae in temperate regions. This study laid a theoretical foundation for the rapid spread and high environmental adaptability of corn cyst nematode.

关键词： crop host resistance Heterodera zeae incubation fluid maize cyst nematode nematode development nematodehatching

Impact of Pd single-site coordination structure on catalytic performance for semihydrogenation of acetylene

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Nano Research 2024年第9期17卷 8243-8249页

作者： Yu Zeng Minqi Xia fujie Gao Changkai Zhou Xueyi Cheng Liwei Liu Liu Jiao Qiang Wu Xizhang Wang Lijun Yang Yining Fan Zheng Hu Key Laboratory of Mesoscopic Chemistry of MOE and Jiangsu Provincial Laboratory for Nanotechnology School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Semihydrogenation of trace acetylene in an ethylene gas stream is a vital step for the industrial production of polyethylene,in which Pd single-site catalysts(SSCs)have great ***,two Pd SSCs with different coordination structures are prepared on hierarchical nitrogen-doped carbon nanocages(hNCNC)by regulating the nitrogen species with or without using *** using dicyandiamide,the obtained Pd1-Ndicy/hNCNC SSC features the coordinated Pd by two pyridinic N and two pyrrolic N(PdN^(py)_(2)N^(pr)_(2)).Without using dicyandiamide,the obtained Pd1/hNCNC SSC features the coordinated Pd by pyridinic N and C(PdN^(py_(x)C_(4-x)),x=1-4).The former exhibits an 18-fold increase in catalytic activity compared to the *** results reveal the abundant unoccupied orbital states above the Fermi level of moiety,which can facilitate the activation of substrate molecules and dynamics of acetylene hydrogenation as supported by the combined theoretical and experimental *** addition,PdN^(py)_(2)N^(pr)_(2)the moiety presents a favorable desorption of ***,the Pd1-Ndicy/hNCNC SSC exhibits high C2H2 conversion(99%)and C2H4 selectivity(87%)at 160℃.This study demonstrates the impact of Pd single-site coordination structure on catalytic performance,which is significant for the rational design of advanced Pd SSCs on carbon-based supports.

关键词： coordination structure hierarchical nitrogen-doped carbon nanocages palladium semihydrogenation of acetylene singlesite catalysts

Pore structure characteristics and controlling factors of different lithofacies in lacustrine shale: A case study of Fengcheng Formation in Mahu Sag， Junggar Basin

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Journal of Earth Science 2024年

作者： Jiahao Lü fujie Jiang Jing Xue Tao Hu Yuping Wu Chenxi Zhang Meiling Hu Renda Huang Key Laboratory of Petroleum Resource Research， Institute of Geology and Geophysics， Chinese Academy of Sciences State Key Laboratory of Petroleum Resources and Prospecting， China University of Petroleum (Beijing) College of Geosciences， China University of Petroleum (Beijing) University of Chinese Academy of Sciences Research Institute of Oriental Geophysical Company，CNPC

The practice of shale oil exploration and development all over the world has shown that reservoir quality is a key factor restricting oil and gas production， the study of ultra-deep (4 500 m) reservoirs in petroliferous basins is a hot spot for oil and gas exploration in the world today. In this paper， taking the Fengcheng Formation (P1f) in Mahu Sag of Junggar Basin as an example， through experiments such as geochemistry， whole rock analysis， FE-SEM， N2 adsorption， and CO2 adsorption， the lithofacies are separated， and the pore structure properties of the various lithofacies are compared. Discuss the primary influencing elements that lead to pore structure differences. The results reveal that the shale of the P1f can be separated into four lithofacies (namely felsic shale， mixed shale， lime shale and dolomitic shale)， according to the mineral composition. The shale pores of P1f develop intergranular pores， intragranular pores， organic pores and micro-fractures. Among them， intergranular pores， intragranular pores and micro-fractures are the most developed， and the pore size is larger， which is a favorable storage space. Different lithofacies have different pore development characteristics. With the change of lithofacies (mixed shale - dolomitic shale - lime shale - felsic shale)， the size of the developed pores changes from small to large， and the pore structure changes from "Mainly microporous" to "mainly macropores". The felsic shale has developed laminae， mainly mesopores and macropores， with the largest pore diameter and the highest content of brittle minerals， which is the dominant lithofacies in the shale oil reservoir of the P1f. TOC， felsic and clay minerals all affect the pore development of shale in the P1f， but the influence of organic matter and inorganic minerals on pore volume varies with pore size. The purpose of this article is to characterize the pore structures and regulators of various lithofacies in lacustrine shale and to provide new ideas for

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How can we establish animal models of HIV-associated lymphoma?

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ANIMAL MODELS AND EXPERIMENTAL MEDICINE 2024年第4期7卷 484-496页

作者： Xiao, Qing Zhai, Liuyue Zhang, Xiaomei Liu, Yi Li, Jun Xie, Xiaoqing Xu, Guofa He, Sanxiu Fu, Huihui Tang, Yifeng Zhang, fujie Liu, Yao Chongqing Univ Canc Hosp Dept Hematol Oncol Chongqing Key Lab Translat Res Canc Metastasis & I Chongqing Peoples R China Chongqing Univ Canc Hosp Dept Hematol Oncol Chongqing Key Lab Translat Res Canc Metastasis & I Chongqing 400030 Peoples R China Capital Med Univ Beijing Ditan Hosp Beijing Peoples R China Capital Med Univ Beijing Ditan Hosp Beijing 100015 Peoples R China

Human immunodeficiency virus (HIV) infection is strongly associated with a heightened incidence of lymphomas. To mirror the natural course of human HIV infection, animal models have been developed. These models serve as valuable tools to investigate disease pathobiology, assess antiretroviral and immunomodulatory drugs, explore viral reservoirs, and develop eradication strategies. However, there are currently no validated in vivo models of HIV-associated lymphoma (HAL), hampering progress in this crucial domain, and scant attention has been given to developing animal models dedicated to studying HAL, despite their pivotal role in advancing knowledge. This review provides a comprehensive overview of the existing animal models of HAL, which may enhance our understanding of the underlying pathogenesis and approaches for malignancies linked to HIV infection. This review provides a comprehensive overview of the existing animal models of HAL, which may enhance our understanding of the underlying pathogenesis and approaches for malignancies linked to HIV ***

关键词： animal model HIV-associated lymphoma (HAL) human immunodeficiency virus (HIV) immunodeficient mice primate model PRIMARY EFFUSION LYMPHOMA ACQUIRED-IMMUNODEFICIENCY-SYNDROME B-CELL LYMPHOMA PERIPHERAL-BLOOD IN-VIVO TRANSGENIC MICE RHESUS-MONKEYS VIRUS GROWTH APOPTOSIS

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融入交叉注意力编码的皮肤病变分割网络

光学精密工程 2024年第4期32卷 609-621页

作者：李大湘杨福杰刘颖唐垚西安邮电大学通信与信息工程学院陕西西安710121

由于卷积操作的局限性,现有的皮肤病变图像分割网络无法对图像中的全局上下文信息建模,导致其无法有效捕获图像的目标结构信息,本文设计了一个融入交叉自注意力编码的U型混合网络,用于皮肤病变图像分割。首先,将设计的多头门控位置交叉... 详细信息

由于卷积操作的局限性,现有的皮肤病变图像分割网络无法对图像中的全局上下文信息建模,导致其无法有效捕获图像的目标结构信息,本文设计了一个融入交叉自注意力编码的U型混合网络,用于皮肤病变图像分割。首先,将设计的多头门控位置交叉自注意力编码器引入到U型网络的最后两个层级中,使其能够在图像中学习语义信息的长期依赖关系,弥补卷积操作全局建模能力的不足;其次,在跳跃连接部分引入一个新的位置通道注意力机制,用于编码融合特征的通道信息并保留位置信息,提高网络捕获目标结构的能力;最后,设计一个正则化Dice损失函数,使网络能够在假阳性和假阴性之间权衡,提高网络的分割结果。基于ISBI2017和ISIC2018数据集的对比实验结果表明,本文网络的Dice分别为91.48%和91.30%,IoU分别为84.42%和84.12%,分割精度在整体上优于其他网络,且具有较低的参数量和计算复杂度,即本文网络能够高效地分割皮肤病变图像的目标区域,可为皮肤疾病辅助诊断提供帮助。

关键词：医学图像分割皮肤病变交叉自注意力编码位置通道注意力

中国重点盆地油气资源丰度统计特征及预测模型建立

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中国石油勘探 2024年第3期29卷 170-180页

作者：杨舒越姜福杰温思远中国石油大学(北京)地球科学学院北京市102249 中海油研究总院有限责任公司

油气资源丰度是资源评价的关键参数之一,确定油气资源丰度对油气资源评价具有重要意义。通过对中国重点盆地石油资源丰度和天然气资源丰度进行统计分析,明确了中国各大油气盆地的常规油气总体上以中、低资源丰度为主,且多为特低、低资... 详细信息

油气资源丰度是资源评价的关键参数之一,确定油气资源丰度对油气资源评价具有重要意义。通过对中国重点盆地石油资源丰度和天然气资源丰度进行统计分析,明确了中国各大油气盆地的常规油气总体上以中、低资源丰度为主,且多为特低、低资源丰度,只有少数几个优势区块才具有高资源丰度。在此基础上,分析了影响油气资源丰度的地质因素,筛选了生烃强度、圈闭面积系数、区域不整合次数3个主控因素。分别基于前陆盆地、克拉通盆地和裂谷盆地,建立了以3个主控因素为主,适用于常规油气的资源预测模型,将该模型应用于3类盆地6个凹陷中,计算资源量与第四次油气资源评价结果比较接近,表明该预测方法具有操作简便、结果可靠、便于推广的优点,可以对数据不太丰富、勘探程度不高的地区进行前期常规油气资源预测。

关键词：油气资源丰度统计特征预测模型

海藻酸钠表面功能化磁性生物炭对亚甲基蓝的吸附特性

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无机盐工业 2024年第2期56卷 65-73页

作者：柳富杰何倩苏龙蒋才云广西科技师范学院食品与生化工程学院广西来宾546119 广西科技师范学院广西现代蔗糖业发展研究院广西来宾546119

利用海藻酸钠(SA)表面改性磁性生物炭(SBC),制备海藻酸钠改性磁性炭(Fe_(3)O_(4)@SBC-SA)以提高对亚甲基蓝(MB)的吸附能力。对吸附剂的表观形貌和结构进行表征,并结合动力学、等温线和热力学研究探讨Fe_(3)O_(4)@SBC-SA对亚甲基蓝的吸... 详细信息

利用海藻酸钠(SA)表面改性磁性生物炭(SBC),制备海藻酸钠改性磁性炭(Fe_(3)O_(4)@SBC-SA)以提高对亚甲基蓝(MB)的吸附能力。对吸附剂的表观形貌和结构进行表征,并结合动力学、等温线和热力学研究探讨Fe_(3)O_(4)@SBC-SA对亚甲基蓝的吸附特性。结果表明:Fe_(3)O_(4)和SA成功负载到SBC;改性后的Fe_(3)O_(4)@SBC-SA对亚甲基蓝的吸附能力高于SBC;Fe_(3)O_(4)@SBC-SA对亚甲基蓝的最佳吸附pH为7.0,在120min时达到吸附平衡。对实验结果进行模型拟合分析得出,Fe_(3)O_(4)@SBC-SA对亚甲基蓝的吸附过程更符合Langmuir模型和准二级吸附动力学方程,吸附过程主要为单分子层吸附和化学吸附,饱和吸附量达到172.41mg/g。Fe_(3)O_(4)@SBC-SA对亚甲基蓝的吸附机理主要是通过羧基与亚甲基蓝之间的静电引力将亚甲基蓝吸附到Fe_(3)O_(4)@SBC-SA上。该研究对Fe_(3)O_(4)@SBC-SA吸附处理废水中亚甲基蓝具有一定的实际意义。

关键词：亚甲基蓝海藻酸钠甘蔗渣炭吸附