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Pore evolution characteristic of shale in the Longmaxi Formation,Sichuan Basin

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Petroleum Research 2017年第4期2卷 291-300页

作者： Wenping liu jun liu Molun Cai Chao Luo Xuewen Shi Jian Zhang Shale Gas Research Institute PetroChina Southwest Oil&Gas Field CompanySichuan 610051China Shale Gas Evaluation and Exploitation Key Laboratory of Sichuan Province Sichuan 610213China CCDC Geological Exploration&Development Research Institute Sichuan 610051China

Through the field emission scanning electronic microscope(FESEM)and the nitrogen adsorption test,pore type and structure of shale reservoir in the Longmaxi Formation in the Sichuan Basin were well *** showed that the pore type includes organic pore,intercrystalline pore,dissolution intracrystalline pore and interparticle pore,and the organic pore was one of major pore types;among the organic pore,the micropore had large pore volume and specific surface area,and was the main storage space of shale *** study on effect of total organic carbon(TOC),organic matter maturity(Ro),diagenesis and tectonism on shale porosity,influence of TOC on porosity could be divided into four stages:the rapid increasing stage(TOC from 0 to 2%),the slow decreasing stage(TOC from 2 to 3%),the rapid increasing stage(TOC from 3 to 4%or 6%)and the rapid decreasing stage(TOC>4%or 6%);influence of the maturity on porosity of shale could be divided into three stages:the rapid decreasing stage(Ro from 1.5 to 2.2%),the rapid increasing stage(Ro from 2.2 to 2.7%)and the rapid decreasing stage(Ro>2.7%);during the high thermal evolution stage,the organic diagenesis was stronger than the inorganic diagenesis;the tectonism had a great impact on porosity,and the more intense the tectonism was,the smaller the porosity would *** evolution of shale porosity of the Longmaxi Formation underwent five stages:the immature rapid compaction stage(Ro2.7%);among which the mature hydrocarbon generation and dissolution stage and the overmature secondary pyrolysis stage were the most favorable shale pore development stages。

关键词： Organic pore Inorganic pore TOC Organic matter maturity Shale Longmaxi formation

HTRA1突变新位点所致的伴有皮质下梗死和白质脑病的常染色体隐性遗传性脑动脉病一家系研究

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中华神经医学杂志 2024年第4期23卷 397-400页

作者：秦晓洪刘雪梅屈先凤王富民肖军李洁颖四川省医学科学院·四川省人民医院四川省精神医学中心神经心理科成都611100

目的分析并总结HTRA1突变新位点所致的伴有皮质下梗死和白质脑病的常染色体隐性遗传性脑动脉病(CARASIL)一家系临床和遗传学特点。方法对1例CARASIL患者进行病史和临床资料收集,并对部分家系成员进行基因检测,观察其HTRA1位点突变情况... 详细信息

目的分析并总结HTRA1突变新位点所致的伴有皮质下梗死和白质脑病的常染色体隐性遗传性脑动脉病(CARASIL)一家系临床和遗传学特点。方法对1例CARASIL患者进行病史和临床资料收集,并对部分家系成员进行基因检测,观察其HTRA1位点突变情况。结果先证者表现为认知障碍、可疑腰椎病变、脱发,头颅影像学发现广泛脑白质病变和多发微出血灶。先证者的母亲有精神症状并曾发生脑卒中,六妹有痴呆病史和高血压病。基因检测发现先证者和两个儿子携带HTRA1基因杂合突变c.888C>G(p.I296M),两个儿子已出现脱发。结论c.888C>G(p.I296M)突变位点可能是CARASIL的致病突变新位点。

关键词：皮质下梗死白质脑病常染色体隐性遗传 HTRA1基因认知障碍

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500 kV同塔四回输电线路雷电反击特性研究

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电工技术 2024年第1期 166-169页

作者：刘巍刘亮柏彬周俊茅鑫同李东鑫国网江苏省电力有限公司建设分公司江苏南京210000 扬州北辰电气集团有限公司江苏扬州225000

500 kV同塔四回输电线路电压等级高、杆塔高、回路多,易发生雷电事故。以虞城换流站-玉山500 kV同塔四回输电线路中的主力杆塔SSZ直线塔为实例,分析了500 kV同塔四回输电线路的雷电反击特性。研究表明,随着雷电流幅值的增大,线路第一回... 详细信息

500 kV同塔四回输电线路电压等级高、杆塔高、回路多,易发生雷电事故。以虞城换流站-玉山500 kV同塔四回输电线路中的主力杆塔SSZ直线塔为实例,分析了500 kV同塔四回输电线路的雷电反击特性。研究表明,随着雷电流幅值的增大,线路第一回、第四回、第六回线路相继发生闪络;随着杆塔呼高和杆塔冲击接地电阻的增大,反击耐雷水平快速降低,反击跳闸率迅速增加;杆塔横担波阻抗对500 kV同塔四回输电线路的反击耐雷水平影响较小。

关键词：同塔四回输电线路雷电反击特性仿真建模

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The Study of Anti-tumor Immunity Induced by DC Vaccines Loaded by GFAP-modified Tumor Antigens

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The Study of Anti-tumor Immunity Induced by DC Vaccines Load...

Rescuing“hopeless”avulsed teeth using autologous platelet-rich fibrin following delayed reimplantation:Two case reports

第六届泛环渤海生物化学与分子生物学会学术交流会

作者： SUO Jin-rong JIA san-san liu Zhi-zhen XIE jun Department of Biochemistry and Molecular Biology

Glioma is the most common primary brain tumor,and the current treatment method is surgical adjuvant *** these treatments were carried out,the median survival time was only one *** vaccine research has long been the main research direction of tumor specific active *** recent years,with the of tumor antigen uptake,processing,presenting and T lymphocyte cell activation mechanism of the recognition of the deep,tumor vaccine research is divided into ten live jump,dendritic cell tumor seedlings in the to its design is reasonable,the maneuverability and significant of near bed application effect,prepared by the *** acidic protein(GFAP) is highly expressed in gliomas and is highly specific,and it is one of the markers of glioma cell *** this study aims at observation of the anti-melanoma specific immunity induced by dendritic cells(DC) vaccine stimulated by GFAP-tumor antigens and the possibility to improve the anti-tumor immune response of DC vaccine by gene-modified tumor was discussed.

关键词： Glioma Dendritic cells Gene modified Tumor vaccines GFAP

来源： cnki会议评论

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World Journal of Clinical Cases 2023年第3期11卷 635-644页

作者： Yang Yang Yan-Li liu Lie-Ni Jia jun-jun Wang Min Zhang State Key Laboratory of Military Stomatology&National Clinical Research Center for Oral Diseases&Shaanxi International Joint Research Center for Oral Diseases Department of General Dentistry and EmergencySchool of StomatologyFourth Military Medical UniversityXi'an 710032Shaanxi ProvinceChina

BACKGROUND Tooth avulsion is one of the most severe types of dental *** avulsed teeth undergo long-term ankylosis and replacement resorption after delayed reimplantation and exhibit a poor *** aim of this work was to improve the success rate of avulsed teeth after delayed reimplantation using autologous platelet-rich fibrin(PRF).CASE SUMMARY Case 1 was a 14-year-old boy who fell and knocked out his left upper central incisor 18 h prior to his arrival at the *** diagnoses were avulsion of tooth 21,lateral luxation of tooth 11 and alveolar fracture of teeth 11 and *** case 2,a 17-year-old boy fell 2 h prior to his presentation to the hospital,and his left upper lateral incisor was completely knocked out of the alveolar *** diagnoses included avulsion of tooth 22,complicated crown fracture of tooth 11and complicated crown-root fracture of tooth *** avulsed teeth were reimplanted along with autologous PRF granules and splinted using a semiflexible titanium preshaped labial *** root canals of the avulsed teeth were filled with calcium hydroxide paste,and root canal filling was performed 4 wk after *** reimplanted teeth showed no symptoms of inflammatory root resorption or ankylosis at the 3-,6-,and 12-mo follow-up examinations after reimplantation with autologous *** addition to the avulsed teeth,the other injured teeth were treated using corresponding conventional treatment *** These cases provide examples of the successful use of PRF to reduce pathological root resorption of the avulsed teeth,and the application of PRF may provide new healing opportunities for traditionally“hopeless”avulsed teeth.

关键词： Avulsion Periodontal healing Platelet-rich fibrin Ankylosis Delayed reimplantation Case report

Research of cavitation characteristics of RCP based on section-constrained blades

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Journal of Hydrodynamics 2019年第4期31卷 750-759页

作者： Rong-sheng Zhu jun-jun Kang Qiang Fu Xiu-li Wang Zong-liang Chen Yong-gang Lu Yong liu National Research Center of Pumps Jiangsu University Zhenjiang 212003 China

To make sure that the bubbles will not block the impeller passage in the process of the transient cavitation, a section-constrained design is adopted in the hydraulic design of the CAP 1400 Reactor Coolant Pump,s(RCP,s) impeller blade, and the cavitation bubble distribution on the suction side of the blade in the CAP 1400 RCP under the transient cavitation condition and the internal pressure pulsation are studied. To study the performance of the section-constrained impeller blade, simulations are carried out by using the CFX software, the cavitation bubble distribution on the suction side and the pulsation dynamics at each monitoring point in different extents of cavitation are obtained based on the Reynolds-averaged N-S equation and the SST k-co equation. The results show that the section-constrained blade has a good constraint capacity on the cavitation, and could enhance the passing ability of the blade in some extent. The main causes of the pressure pulsation inside a pump are the rotor-stator interaction, the separated flow at the round-like pump chamber, and the reflux inside the flow passage. The pressure pulsation inside the impeller and the guide vane is characterized by the significant periodicity, which are both affected by the rotor-stator interaction. And the impeller outlet and the guide vane inlet are more susceptible to the rotor-stator interaction. Studies of the vapor-liquid two-phase flow and the pressure pulsation inside the RCP's impeller with the transient cavitation are of great significance for the prediction of the RCP’s dynamic characteristics after the cavitation, and for the safety and the stable running of the RCP.

关键词： RCP section-constrained blade transient cavitation numerical simulation experiment pressure pulsation

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合成气乙二醇产品质量提升技术综述

工业催化 2024年第7期32卷 14-18页

作者：刘应杰成春喜胡燕刘华伟雷军华烁科技股份有限公司湖北武汉430074

总结合成气制乙二醇产品质量提升的4种技术手段:液相加氢,精馏加碱,产品塔釜加药剂和离子交换树脂吸附,分析4种方法的作用原理和效果,提出产品质量提升的根本在于加氢催化剂性能的提高,液相加氢需进一步提高催化剂活性,从而简化生产工... 详细信息

总结合成气制乙二醇产品质量提升的4种技术手段:液相加氢,精馏加碱,产品塔釜加药剂和离子交换树脂吸附,分析4种方法的作用原理和效果,提出产品质量提升的根本在于加氢催化剂性能的提高,液相加氢需进一步提高催化剂活性,从而简化生产工艺。综述对乙二醇生产具有一定的借鉴作用。

关键词：精细化学工程乙二醇产品质量液相加氢

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FedFV: A Personalized Federated Learning Framework for Finger Vein Authentication

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Machine Intelligence Research 2023年第5期20卷 683-696页

作者： Feng-Zhao Lian jun-Duan Huang Ji-Xin liu Guang Chen jun-Hong Zhao Wen-Xiong Kang School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641China GRG Banking Equipment Co.Ltd. Guangzhou 510663China School of Automation Guangdong University of Petrochemical TechnologyMaoming 525000China

Most finger vein authentication systems suffer from the problem of small sample ***,the data augmentation can alleviate this problem to a certain extent but did not fundamentally solve the problem of category *** the researchers resort to pre-training or multi-source data joint training methods,but these methods will lead to the problem of user privacy *** view of the above issues,this paper proposes a federated learning-based finger vein authentication framework(FedFV)to solve the problem of small sample size and category diversity while protecting user *** training under FedFV,each client can share the knowledge learned from its user′s finger vein data with the federated client without causing template *** addition,we further propose an efficient personalized federated aggregation algorithm,named federated weighted proportion reduction(FedWPR),to tackle the problem of non-independent identically distribution caused by client diversity,thus achieving the best performance for each *** thoroughly evaluate the effectiveness of FedFV,comprehensive experiments are conducted on nine publicly available finger vein *** results show that FedFV can improve the performance of the finger vein authentication system without directly using other client *** the best of our knowledge,FedFV is the first personalized federated finger vein authentication framework,which has some reference value for subsequent biometric privacy protection research.

关键词： Finger vein personalized federated learning privacy protection biometric authentication.

Cloud computing-enabled IIOT system for neurosurgical simulation using augmented reality data acces

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Digital Communications and Networks 2023年第2期9卷 347-357页

作者： jun liu Kai Qian Zhibao Qin Mohammad Dahman Alshehri Qiong Li Yonghang Tai Yunnan Key Laboratory of Opto-electronic Information Technology Yunnan Normal UniversityKunming650500China Department of Thoracic Surgery Institute of The First People's Hospital of Yunnan ProvinceKunmingChina Faculty of Life and Biotechnology Kunming University of Science and TechnologyKunmingChina Department of Computer Science College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

In recent years,statistics have indicated that the number of patients with malignant brain tumors has increased ***,most surgeons still perform surgical training using the traditional autopsy and prosthesis model,which encounters many problems,such as insufficient corpse resources,low efficiency,and high *** the advent of the 5G era,a wide range of Industrial Internet of Things(IIOT)applications have been *** Reality(VR)and Augmented Reality(AR)technologies that emerged with 5G are developing rapidly for intelligent medical *** address the challenges encountered during neurosurgery training,and combining with cloud computing,in this paper,a highly immersive AR-based brain tumor neurosurgery remote collaborative virtual surgery training system is developed,in which a VR simulator is *** system enables real-time remote surgery training interaction through 5G *** experts and 18 novices were invited to participate in the experiment to verify the ***,the two simulators were evaluated using face and construction validation *** results obtained by training the novices 50 times were further analyzed using the Learning Curve-Cumulative Sum(LC-CUSUM)evaluation method to validate the effectiveness of the two *** results of the face and content validation demonstrated that the AR simulator in the system was superior to the VR simulator in terms of vision and scene authenticity,and had a better effect on the improvement of surgical ***,the surgical training scheme proposed in this paper is effective,and the remote collaborative training effect of the system is ideal.

关键词： Neurosurgery IIOT Cloud computing Intelligent medical 5G AR