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Study on fracture characteristics in coal and shale for coal-measure gas reservoir based on 3D CT reconstruction and fractal features

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Frontiers of Earth Science 2023年第2期17卷 514-526页

作者： Huijun WANG Shangbin CHEN Shaojie ZHANG Chengxing ZHANG Yang WANG gaofeng yi yixuan PENG School of Resources and Geoscience China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process(the Ministry of Education) China University of Mining and TechnologyXuzhou 221116China School of Earth Sciences and Engineering Sun Yat-sen UniversityGuangzhou 510275China

Pores and fractures are important components of flow channels in coal-measure gas reservoirs.While considerable studies have been conducted on pore structure evolution,very few studies have investigated the fracture distribution and self-similarity characteristics.To reveal the characteristics of fracture distribution in coal and shale reservoirs,computed tomography studies were performed on 15 coal and shale samples from the Shanxi and Taiyuan formations.The results show that the fracture distribution of samples of the same lithology differs significantly,and the fracture distribution heterogeneity of shale samples is much higher than that of coal samples.In shale,the heterogeneity of fracture distribution is mainly caused by pores and fractures smaller than 2μm in the z-direction,with relatively little contributions from pores and fractures in the x and y directions.However,the heterogeneity of fracture distribution in coal is mainly controlled by pores and fractures larger than 2μm in all directions,and the difference between the three directions is minor.It was shown that a great number of microscopic pores and fractures contribute to the highest fractions of porosity in different lithological samples.This method is useful for determining the fracture distribution characteristics in shale and coal-measure gas reservoir.

关键词： pore-fracture system fracture distribution directionality heterogeneity CT experiment coalmeasure gas reservoirs

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Adaptable "bubble particles" prepared by green aqueous phase reshaping for completely removing odor

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Nano Research 2024年第3期17卷 2172-2180页

作者： Jiajia Ma yichang Xia Tienan Zhao Wenfeng Hu Weifeng Zhang Qinfei Ke yi Zhao Shanghai Frontiers Science Center of Advanced Textiles Donghua UniversityShanghai 201620China Engineering Research Center of Technical Textiles Ministry of EducationDonghua UniversityShanghai 201620China School of Fashion Engineering Central Laboratory Shanghai University of Engineering ScienceShanghai 201620China Department of Materials Science and Engineering National University of SingaporeSingapore 117575Singapore School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 201418China

Facile and ecofriendly loading of micro/nano function-specific substances to create functional materials is a trend being pursued by researchers.However,current micro/nano particles loading approaches are often hindered by issues such as uneven distribution,unsatisfactory stability and complicate procedure.In this work,we present an aqueous phase reshaping method that only utilizes the moisture to fabricate the"bubble particles",which could perfectly cater to the topography of the substrate.The green preparation of bubble particles adopts an absolutely zero-pollution method,realizing the firm loading of particles on the substrate.Integrating the preparation and loading of particles overcomes the traditional complicate process,while the aqueous phase reshaping ensures uniform and firm loading of the"bubble particles"onto the substrate.Our mechanism demonstrates a significant enhancement in the interface relation after aqueous phase reshaping,with a 121-fold increase in contact surface area achieved by reducing the height by 1μm.Furthermore,we explore for the first time the influence of the nature of the receiving substrate on the interface morphology of particles during electrostatic spraying,which has important guiding significance for the interface relationship of electrostatic spraying and even electrostatic spinning materials.We also screen out the natural antibacterial essential oil linalool as the effective specialized antibacterial agent,which can specifically inhibit the odor-producing Proteus in urine,with an antibacterial rate of up to 100%.Taken together,this simple,ecofriendly method for fabricating functional materials with optimal interface stability appears highly promising for use in various products formed by electrostatic spraying/spinning.

关键词： bubble particle electrostatic spraying aqueous phase reshaping interface bonding remove odor nano spraying

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三河尖关闭煤矿煤层CO_(2)封存潜力研究

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煤炭科学技术 2024年第3期52卷 258-268页

作者：钱静易高峰周琦忠汤志刚彭一轩王阳陈尚斌江苏省地质矿产局第五地质大队江苏徐州221004 中国矿业大学资源与地球科学学院江苏徐州221116 煤层气资源与成藏过程教育部重点实验室江苏徐州221008

关闭煤矿煤层CO_(2)地质封存是CO_(2)封存的重要方式之一,也是短期内实现碳减排指标的有效手段之一。以江苏省徐州市三河尖关闭煤矿为例,分析了已采7号煤和9号煤的煤岩煤质特征,统计了剩余煤炭资源储量,运用模糊综合评价法,选取了稳定... 详细信息

关闭煤矿煤层CO_(2)地质封存是CO_(2)封存的重要方式之一,也是短期内实现碳减排指标的有效手段之一。以江苏省徐州市三河尖关闭煤矿为例,分析了已采7号煤和9号煤的煤岩煤质特征,统计了剩余煤炭资源储量,运用模糊综合评价法,选取了稳定系数、上覆岩层性质、地质构造复杂程度、地下水指标、封存煤层压温比、封存煤层深厚比、封存煤层渗透率、采空塌陷程度和其他因素等9个主要影响因素指标对7号煤和9号煤封存CO_(2)稳定性进行评价,建立关闭煤矿煤层CO_(2)封存评价方法并评估CO_(2)封存潜力。结果表明,三河尖关闭煤矿7号煤和9号煤剩余储量较大,CO_(2)封存稳定性综合评价结果分别为86.209和87.698,评价等级均为较稳定,封存潜力较高。根据建立的关闭煤矿煤层CO_(2)封存评价方法,计算获得三河尖关闭煤矿7号和9号煤层CO_(2)理论封存量分别为207.6 Mt和80.9 Mt,并据此划分封存有利区为有利区、较有利区和不利区3个等级。研究可为关闭煤矿煤层CO_(2)封存研究提供基础依据。

关键词：关闭煤矿煤层CO_(2)封存稳定性评价封存潜力三河尖煤矿碳封存

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柴胡皂苷A调节cAMP/PKA/CREB信号通路对失眠大鼠的改善作用及机制研究

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中药新药与临床药理 2024年第5期35卷 633-638页

作者：乔明亮梁硕孟毅李锋森谭高峰齐丹丹陈豪攀河南省中医院老年病科河南郑州450053 河南中医药大学河南郑州450046

目的基于cAMP/PKA/CREB通路探讨柴胡皂苷A对失眠大鼠的改善作用及机制。方法将75只SD大鼠随机分为空白组、模型组、柴胡皂苷A低剂量组(0.625 mg·kg^(-1))、柴胡皂苷A高剂量组(2.500 mg·kg^(-1))、艾司唑仑组(0.1 mg·kg^(-1)),每组15... 详细信息

目的基于cAMP/PKA/CREB通路探讨柴胡皂苷A对失眠大鼠的改善作用及机制。方法将75只SD大鼠随机分为空白组、模型组、柴胡皂苷A低剂量组(0.625 mg·kg^(-1))、柴胡皂苷A高剂量组(2.500 mg·kg^(-1))、艾司唑仑组(0.1 mg·kg^(-1)),每组15只。采用腹腔注射苯丙氨酸(PCPA,0.1 mg·kg^(-1))复制失眠大鼠模型。观察大鼠一般情况及昼夜节律;采用戊巴比妥钠翻正实验测定大鼠睡眠潜伏期及睡眠持续时间;观测大鼠睡眠时相,记录慢波睡眠第1期(SWS1)、慢波睡眠第2期(SWS2)、快速眼球运动睡眠期(REMS)时长以及总睡眠时长(TST);qRT-PCR法测定下丘脑节律基因Clock、Bmal1 mRNA及钟控基因Rev-erbα、RorαmRNA的表达水平;免疫荧光法测定海马组织NeuN表达水平;ELISA法测定脑组织中的cAMP水平;Western Blot法测定脑组织中Clock、Bmal1、Rev-erbα、Rorα及cAMP/PKA/CREB通路相关蛋白表达水平。结果与空白组比较,模型组大鼠昼伏夜出的节律紊乱,极度兴奋,易激惹,睡眠减少;睡眠潜伏期明显延长(P<0.05),睡眠持续时间及SWS1、SWS2、REMS、TST均明显缩短(P<0.05);神经元排列紊乱,NeuN阳性神经元IOD值明显降低(P<0.05);脑组织Clock、Bmal1、Rev-erbα、RorαmRNA及蛋白表达水平明显降低(P<0.05);脑组织cAMP、p-PKA/PKA、p-CREB/CREB蛋白表达水平明显降低(P<0.05)。与模型组比较,给药组大鼠的攻击性明显减弱,昼伏夜出有节律性,活动减少,睡眠增多;睡眠潜伏期明显缩短(P<0.05),睡眠持续时间及SWS1、SWS2、REMS、TST均明显延长(P<0.05);神经元排列紊乱情况有所恢复,NeuN阳性神经元IOD值明显升高(P<0.05);脑组织Clock、Bmal1、Rev-erbα、RorαmRNA及蛋白表达水平明显升高(P<0.05);脑组织cAMP、p-PKA/PKA、p-CREB/CREB蛋白表达水平明显升高(P<0.05)。结论柴胡皂苷A可能通过激活cAMP/PKA/CREB通路改善失眠大鼠的昼夜节律。

关键词：柴胡皂苷A 失眠 cAMP/PKA/CREB信号通路昼夜节律节律基因钟控基因大鼠

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High levels of serum IL-10 indicate disease progression,extramedullary involvement,and poor prognosis in multiple myeloma

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2022年第11期23卷 968-974页

作者： Xiaoyan YUE Linlin HUANG Yang YANG yi ZHAO Donghua HE Xiaoyan HAN gaofeng ZHENG yi LI Enfan ZHANG Zhen CAI Xin HUANG Jingsong HE Bone Marrow Transplantation Center Department of Hematologythe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310003China Institute of Hematology Zhejiang UniversityHangzhou 310058China Zhejiang Laboratory for Systems&Precision Medicine Zhejiang University Medical CenterHangzhou 311121China Institute of Hematology Department of Hematologythe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310003China

Multiple myeloma(MM)is a common malignant hematological tumor in adults,which is characterized by clonal malignant proliferation of plasma cells in the bone marrow and secretion of a large number of abnormal monoclonal immunoglobulins(M protein),leading to bone destruction,hypercalcemia,anemia,and renal insufficiency(Alexandrakis et al.,2015;Yang et al.,2018).Since a large number of new drugs,represented by proteasome inhibitors and immunomodulators,have been successfullyused to treat MM.

关键词： al. involvement myeloma

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Flat-field superoscillation metalens

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Photonics Research 2022年第8期10卷 1924-1930页

作者： DINGPENG LIAO FENGLIANG DONG KUN ZHANG yi ZHOU gaofeng LIANG ZHIHAI ZHANG ZHONGQUAN WEN ZHENGGUO SHANG GANG CHEN LURU DAI WEIGUO CHU Key Laboratory of Optoelectronic Technology&Systems(Chongqing University) Ministy of Educationand College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China National Center for Nanoscience and Technology Bejing 100190China

Superoscillation metalenses have demonstrated promising prospects in breaking the theoretical diffraction limitations on the resolution of optical devices and systems. However, most reported superoscillation metalenses have a very small field of view of several tenths of a degree, which greatly limits their applications in imaging and microscopy. Therefore, it is of critical importance to achieve absolute high resolution by increasing the numerical apertures(NAs) of optical devices and systems. Unfortunately, similar to the case in traditional optics, it is challenging to realize a large field of view at high NA, especially in the superoscillation regime. To date, no attempt has been made to achieve flat-field focusing in the superoscillation regime, to our knowledge. Here, we demonstrate a high-NA superoscillation metalens with an entrance aperture stop, which is optimized for superoscillation performance with a comparatively large field of view. The proposed flat-field superoscillation metalens has an effective NA as large as 0.89 and achieves superoscillation focusing within a field of view of 9°. Such a superoscillation metalens may offer a promising way toward superoscillation imaging and fast-scanning label-free farfield superoscillation microscopy.

关键词： oscillation field absolute

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Anti-metabolic agent pegaspargase plus PD-1 antibody sintilimab for first-line treatment in advanced natural killer T cell lymphoma

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1665-1674页

作者： Jie Xiong Shu Cheng Xiao Gao Shan-He Yu Yu-Ting Dai Xin-Yun Huang Hui-Juan Zhong Chao-Fu Wang Hong-Mei yi Hao Zhang Wei-Guo Cao Rong Li Wei Tang Yan Zhao Peng-Peng Xu Li Wang Wei-Li Zhao Shanghai Institute of Hematology State Key Laboratory of Medical GenomicsNational Research Center for Translational Medicine at ShanghaiRuijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Nuclear Medicine Shanghai Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Pathology Shanghai Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Otolaryngology Shanghai Rujin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Radiation Shanghai Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Hematology Navy Medical Center of PLAShanghaiChina Pole de Recherches Sino-Francais en Science du Vivant et Genomique Laboratory of Molecular PathologyShanghaiChina

Natural killer T cell lymphoma(NKTCL)is highly aggressive,with advanced stage patients poorly responding to intensive chemotherapy.To explore effective and safe treatment for newly diagnosed advanced stage NKTCL,we conducted a phase ll study of anti-metabolic agent pegaspargase plus PD-1 antibody sintilimab(NCT04096690).Twenty-two patients with a median age of 51 years(range,24-74)were enrolled and treated with induction treatment of pegaspargase 2500 IU/m2 intramuscularly on day 1 and sintilimab 200 mg intravenously on day 2 for 6 cycles of 21 days,followed by maintenance treatment of sintilimab 200 mg for 28 cycles of 21 days.The complete response and overall response rate after induction treatment were 59%(95%Cl,43-79%)and 68%(95%Cl,47-84%),respectively.With a median follow-up of 30 months,the 2 year progression-free and overall survival rates were 68%(95%Cl,45-83%)and 86%(95%Cl,63-95%),respectively.The most frequently grade 3/4 adverse events were neutropenia(32%,n=7)and hypofibrinogenemia(18%,n=4),which were manageable and led to no discontinuation of treatment.Tumor proportion score of PD-L1,peripheral blood high-density lipoprotein cholesterol,and apolipoprotein A-l correlated with good response,while PD-1 on tumor infiltrating lymphocytes and peripheral Treg cells with poor response to pegaspargase plus sintilimab treatment.In conclusion,the chemo-free regimen pegaspargase plus sintilimab was effective and safe in newly diagnosed,advanced stage NKTCL.Dysregulated lipid profle and immunosuppressive signature contributed to treatment resistance,providing an alternative therapeutic approach dual targeting fatty acid metabolism and CTLA-4 in NKTCL.

关键词： killer metabolism lymphoma

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Neutrophil membrane-camouflaged nanoparticles alleviate inflammation and promote angiogenesis in ischemic myocardial injury

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Bioactive Materials 2023年第5期23卷 369-382页

作者： Dongjian Han Fuhang Wang Zhentao Qiao Bo Wang yi Zhang Qingjiao Jiang Miaomiao Liu Yuansong Zhuang Quanxu An Yan Bai Jiahong Shangguan Jinying Zhang gaofeng Liang Deliang Shen Department of Cardiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450000China Key Laboratory of Cardiac Injury and Repair of Henan Province ZhengzhouChina Department of Vascular and Endovascular Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450000China School of Basic Medical Sciences Henan University of Science and TechnologyLuoyang471023HenanChina

Acute myocardial infarction(AMI)induces a sterile inflammatory response,leading to cardiomyocyte damage and adverse cardiac remodeling.Interleukin-5(IL-5)plays an essential role in developing eosinophils(EOS),which are beneficial for the resolution of inflammation.Furthermore,the proangiogenic properties of IL-5 also contribute to tissue healing following injury.Therefore,targeted delivery of IL-5 is an innovative therapeutic approach for treating AMI.It has been shown that conventional IL-5 delivery can result in undesirable adverse effects and potential drug overdose.In this study,we successfully synthesized a biomimetic IL-5 nanoparticle by camouflaging the IL-5 nanoparticle in a neutrophilic membrane.The administration of neutrophil membrane-camouflaged nanoparticles(NM-NPIL-5)in the in vivo model showed that these nanoparticles promoted EOS accumulation and angiogenesis in the infarcted myocardium,thereby limiting adverse cardiac remodeling after AMI.Our results also demonstrated that the NM-NPIL-5 could serve as neutrophil“decoys”to adsorb and neutralize the elevated neutrophil-related cytokines in the injured heart by inheriting multiple receptors from their“parent”neutrophils.Finally,the targeted delivery of NM-NPIL-5 protected the cardiomyocytes from excessive inflammatory-induced apoptosis and maintained cardiac function.Our findings provided a promising cardiac detoxification agent for acute cardiac injury.

关键词： Biomimetic nanoparticles Interleukin-5 Eosinophils Angiogenesis Myocardial infarction

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Terahertz metalens of hyper-dispersion

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Photonics Research 2022年第4期10卷 886-895页

作者： Fen Zhao Ziping Li Sheng Li Xuemei Dai yi Zhou Xiaoyu Liao JCCao gaofeng Liang Zhengguo Shang Zhihai Zhang Zhongquan Wen Hua Li Gang Chen Key Laboratory of Optoelectronic Technology and Systems(Chongqing University) Ministry of EducationSchool of Optoelectronic EngineeringChongqing UniversityChongqing 400044China Key Laboratory of Terahertz Solid State Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Chromatic optical lenses have promising applications in three-dimensional imaging, which allows fast spectral tomography without mechanical moving parts. The scanning range of current chromatic optical lenses is limited by their dispersion ability. The recent development in metasurfaces provides ideal blocks for optical wavefront manipulation and dispersion engineering of artificial materials at sub-wavelength scales. Hyper-dispersive metalenses can be realized by utilizing dispersive meta-atoms, which have enhanced dispersion compared to regular diffractive lenses. This is critical for increasing the imaging depth of fast spectral tomography. In this work, a hyper-dispersive metalens is realized with a chromatic dispersion 1.76 times greater than that of a regular diffractive metalens in the THz frequency range of 2.40–2.61 THz by simultaneously controlling the frequencydependent phase, group delay(GD), and GD dispersion of the metalens. This approach can also be extended to other optical spectra and improve the performance of spectral tomography.

关键词： dispersion moving chromatic

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调补肺肾三法通过抑制ERK1/2信号通路改善COPD大鼠气道黏液高分泌

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中国实验动物学报 2024年第4期32卷 411-422页

作者：李高峰刘淑娟李亚李素云范正媛沈婷婷河南中医药大学第一临床医学院郑州450046 河南中医药大学第一附属医院中药药理(呼吸)实验室河南省呼吸病防治中医药重点实验室郑州450000 河南中医药大学第一附属医院呼吸科郑州450000 河南中医药大学呼吸疾病中医药防治省部共建协同创新中心郑州450046

目的探究调补肺肾三法对慢性阻塞性肺疾病(chronic obstructive pulmonary disease, COPD)稳定期大鼠气道黏液高分泌的影响及作用机制。方法 90只大鼠随机分为对照(Control)组、模型(COPD)组、补肺健脾(Bu-Fei Jian-Pi Formula, BJF)... 详细信息

目的探究调补肺肾三法对慢性阻塞性肺疾病(chronic obstructive pulmonary disease, COPD)稳定期大鼠气道黏液高分泌的影响及作用机制。方法 90只大鼠随机分为对照(Control)组、模型(COPD)组、补肺健脾(Bu-Fei Jian-Pi Formula, BJF)组、补肺益肾(Bu-Fei yi-Shen Formula, BYF)组、益气滋肾(yi-Qi Zi-Shen Formula, YZF)组、ERK1/2抑制剂(PD98059)组、补肺健脾联合抑制剂(BJF+PD98059)组、补肺益肾联合抑制剂(BYF+PD98059)组和益气滋肾联合抑制剂(YZF+PD98059)组。第1~8周采用香烟烟雾暴露联合细菌反复感染的方法建立COPD大鼠模型,9~16周Control组和COPD组给予生理盐水每只2 mL,BJF组、BYF组和YZF组分别给予对应的调补肺肾三方灌胃,第16周PD98059组、BJF+PD98059组、BYF+PD98059组和YZF+PD98059组给予PD98059腹腔注射7 d。16周结束后取材,检测大鼠肺功能、肺组织形态、肺组织水含量、BALF中炎性细胞计数和血清炎性因子水平。AB-PAS染色和免疫组化法分别检测杯状细胞比例和Muc5AC、Muc5B表达。PCR检测ERK1、ERK2、ENaC、CFTR、AQP5 mRNA表达。Western Blot测定肺组织中ERK1/2、P-ERK1/2蛋白表达。结果与Control组相比,COPD组大鼠TV、MV、FVC、FEV_(0.1)及FEV_(0.1)/FVC均显著下降(P<0.01);肺病理显示肺泡紊乱,肺泡壁大量断裂,气管壁严重皱缩增厚,周围有大量炎性细胞浸润;肺组织水含量明显升高(P<0.01);BALF中巨噬细胞比例显著降低(P<0.01),中性粒细胞和淋巴细胞比例显著升高(P<0.01);血清炎性因子TNF-α、IL-1β水平显著增高(P<0.05,P<0.01);气道上皮杯状细胞比例和Muc5AC、Muc5B表达水平均显著升高(P<0.01);肺组织ERK1、ERK2、ENaC mRNA表达量均明显升高(P<0.01),CFTR和AQP5 mRNA的表达均明显降低(P<0.01);肺组织P-ERK1/2, ERK1/2表达明显升高(P<0.01);与COPD组相比,各治疗组能不同程度改善上述指标变化(P<0.05,P<0.01),调补肺肾三方联合PD98059组治疗效果优于单一治疗组(P<0.05,P<0.01)。结论调补肺肾三法通过抑制ERK1/2信号通路改善COPD大鼠气道黏液高分泌。

关键词：慢性阻塞性肺疾病气道黏液高分泌调补肺肾三法 ERK1/2信号通路

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