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The formation evaluation tool and its application in offshore China

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Applied Geophysics 2006年第1期3卷 62-67页

作者： Liu jianxin Zhang Conghui pang Xishun China Oilfield Services Limited E O. Box 255 Beijing 101149 China.

The Formation Evaluation Tool （FET） introduced in the paper represents a new generation of formation evaluation systems developed and manufactured by China Oilfield Services Limited （COSL）, CNOOC, using a FET technology transfer from Crocker Research, Australia. The system has been applied successfully in the Bohai Sea and South China Sea. For instance, a multilayered oil and water system has been confirmed with the aid of accurate formation pressure tests, even in very thin beds and edge water reservoirs, overcoming the difficulty of determining this kind of oil-water and gas-water contacts. Moreover, the FET pumping and real-time fluid monitoring function allows acquiring a true sample of formation fluid unpolluted by drilling mud which plays an important role in determining the fluid properties of the target stratum and analyzing the fluid component. The principles and purpose of the Formation Evaluation Tool （FET） will be briefly introduced and successful examples of the application of the technology will be described in detail in this paper.

关键词： Formation evaluation tool FET pumping sampling and pressure test.

Lightweight Underwater Target Detection Using YOLOv8 with Multi-Scale Cross-Channel Attention

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Computers, Materials & Continua 2025年第1期82卷 713-727页

作者： Xueyan Ding Xiyu Chen Jiaxin Wang jianxin Zhang School of Computer Science and Engineering Dalian Minzu UniversityDalian116600China Research Center of Multimodal Information Perception and Intelligent Processing Dalian Minzu UniversityDalian116600China

Underwater target detection is extensively applied in domains such as underwater search and rescue,environmental monitoring,and marine resource *** is crucial in enabling autonomous underwater robot operations and promoting ocean ***,low imaging quality,harsh underwater environments,and obscured objects considerably increase the difficulty of detecting underwater targets,making it difficult for current detection methods to achieve optimal *** order to enhance underwater object perception and improve target detection precision,we propose a lightweight underwater target detection method using You Only Look Once(YOLO)v8 with multi-scale cross-channel attention(MSCCA),named *** the proposed multiscale cross-channel attention module,multi-scale attention(MSA)augments the variety of attentional perception by extracting information from innately diverse sensory *** cross-channel strategy utilizes RepVGGbased channel shuffling(RCS)and one-shot aggregation(OSA)to rearrange feature map channels according to specific *** aggregates all features only once in the final feature mapping,resulting in the extraction of more comprehensive and valuable feature *** experimental results show that the proposed YOLOv8-UOD achieves a mAP50 of 95.67%and FLOPs of 23.8 G on the Underwater Robot Picking Contest 2017(URPC2017)dataset,outperforming other methods in terms of detection precision and computational cost-efficiency.

关键词： Deep learning underwater target detection attention mechanism

基于全科医生胜任力的医患沟通能力培训现状及对策研究

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中国全科医学 2020年第16期23卷 2057-2061页

作者：庞建欣王永晨哈尔滨医科大学附属第二医院全科医学教研室黑龙江省哈尔滨市150086

医患沟通能力是全科医生必备的基本素质。良好的医患沟通是患者信任的基础,也是全科医生顺利开展社区医疗卫生工作的重要保障。现阶段沟通能力对医患关系的影响越来越受到重视,医患沟通能力培训也成为研究的焦点之一,但日益紧张的医患... 详细信息

医患沟通能力是全科医生必备的基本素质。良好的医患沟通是患者信任的基础,也是全科医生顺利开展社区医疗卫生工作的重要保障。现阶段沟通能力对医患关系的影响越来越受到重视,医患沟通能力培训也成为研究的焦点之一,但日益紧张的医患关系表明医患沟通仍不尽如人意。本文阐述了国内外医患沟通能力培训现状,强调提升全科医生医患沟通能力的必要性,并借鉴国外相关经验探讨提升医患沟通能力的具体举措,如增设医患沟通课程、联合应用多种培训形式、加强医患沟通能力考核,以期为我国全科医生医患沟通能力的教育培训提供理论参考。

关键词：全科医生岗位胜任力医生病人关系教育,医学

DecMamba:Mamba Utilizing Series Decomposition for Multivariate Time Series Forecasting

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Computers, Materials & Continua 2025年第1期82卷 1049-1068页

作者： jianxin Feng Jianhao Zhang Ge Cao Zhiguo Liu Yuanming Ding Communication and Network Key Laboratory Dalian UniversityDalian116622China

Multivariate time series forecasting iswidely used in traffic planning,weather forecasting,and energy *** decomposition algorithms can help models better understand the underlying patterns of the original series to improve the forecasting accuracy of multivariate time ***,the decomposition kernel of previous decomposition-based models is fixed,and these models have not considered the differences in frequency fluctuations between *** problems make it difficult to analyze the intricate temporal variations of real-world time *** this paper,we propose a series decomposition-based Mamba model,DecMamba,to obtain the intricate temporal dependencies and the dependencies among different variables of multivariate time series.A variable-level adaptive kernel combination search module is designed to interact with information on different trends and periods between *** backbone structures are proposed to emphasize the differences in frequency fluctuations of seasonal and trend *** with superior performance is used instead of a Transformer in backbone structures to capture the dependencies among different variables.A new embedding block is designed to capture the temporal features better,especially for the high-frequency seasonal component whose semantic information is difficult to acquire.A gating mechanism is introduced to the decoder in the seasonal backbone to improve the prediction accuracy.A comparison with ten state-of-the-art models on seven real-world datasets demonstrates that DecMamba can better model the temporal dependencies and the dependencies among different variables,guaranteeing better prediction performance for multivariate time series.

关键词： Data prediction time series Mamba series decomposition

Boosting Photocatalytic Performance of Cu-Mn Co-doped CeO_(2) Nanoparticles for Tetracycline Degradation

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 42-48页

作者： XU Rongqi MI jianxin WANG Shulin XU Man ZHU Li BAI Lei TANG Dandan LEI Yu Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province School of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Shaanxi Coal Chemical Industry Technology Research Institute Co. Ltd.Xi’an 710100China

Cu-Mn co-doped CeO_(2) photocatalyst was successfully synthesized by the sol-gel method to assess its capability in degrading *** and TEM results showed that Cu and Mn were successfully co-doped into CeO_(2) without forming heterostructure,XPS and photoelectrochemical results revealed that Mn ions doping amplified the generation of photo-induced charge carriers,while Cu ions doping significantly facilitated the interfacial charge transfer ***,the optimized Cu3Mn2CeO_(2) nanoparticles exhibited the highest TC removal efficiency,achieved a rate of 78.18%and maintained a stable cycling performance.

关键词： photocatalyst co-doped charge separation water treatment

氰基吡咯烷类DPP-4抑制剂的设计、合成及活性研究

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南方医科大学学报 2012年第2期32卷 177-180页

作者：王文玲江慧贤庞建新姜志宏习保民南方医科大学药学院广东广州510515

目的设计合成底物类似的氰基吡咯烷类二肽基肽酶（DPP-4）抑制剂,对其进行体外活性测试。方法以氰基吡咯烷为基本骨架,引入不同的取代基,设计了11个DPP-4抑制剂。以L-脯氨酰胺为原料制备溴乙酰氰基吡咯烷,再与不同取代的苯基哌嗪哒嗪酮... 详细信息

目的设计合成底物类似的氰基吡咯烷类二肽基肽酶（DPP-4）抑制剂,对其进行体外活性测试。方法以氰基吡咯烷为基本骨架,引入不同的取代基,设计了11个DPP-4抑制剂。以L-脯氨酰胺为原料制备溴乙酰氰基吡咯烷,再与不同取代的苯基哌嗪哒嗪酮经亲核取代反应得目标化合物。结果所得目标化合物经~1H-NMR、MS确认结构,并以西他列汀为对照药,对其进行体外活性筛选。所有目标化合物均有一定的抑制活性。结论活性测试显示11个目标位均有一定的DPP-4抑制活性,其中化合物1j和1k的抑制活性更强,在10~5nmol/L水平的抑制率分别是1j（26.14%）、1k（34.15%）。

关键词： 2 型糖尿病 DPP-4抑制剂氰基吡咯烷

沙棘干乳剂联合赖氨肌醇维B_(12)口服液治疗小儿厌食症102例临床观察

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中医儿科杂志 2015年第2期11卷 42-45页

作者：刘兰梅庞建新广州市白云区三元里街社区卫生服务中心广东广州510405 南方医科大学药学院广东广州510515

目的探讨沙棘干乳剂联合赖氨肌醇维B12口服液治疗小儿厌食症的临床疗效。方法将符合小儿厌食症临床诊断标准的203例患儿随机分为治疗组和对照组2组,治疗组102例口服沙棘干乳剂及赖氨肌醇维B12口服液,对照组101例口服厌食康颗粒。疗程均... 详细信息

目的探讨沙棘干乳剂联合赖氨肌醇维B12口服液治疗小儿厌食症的临床疗效。方法将符合小儿厌食症临床诊断标准的203例患儿随机分为治疗组和对照组2组,治疗组102例口服沙棘干乳剂及赖氨肌醇维B12口服液,对照组101例口服厌食康颗粒。疗程均为4周,1个疗程后统计疗效。结果治疗组总有效率为96.08%,对照组为83.17%,2组比较差异有统计意义(P<0.05);治疗后治疗组在食欲改善、体质量变化、贫血改善方面均优于对照组,2组比较差异有统计意义(P<0.05);2组均未发现不良反应。结论沙棘干乳剂联合赖氨肌醇维B12口服液治疗小儿厌食症临床疗效显著,值得临床推广。

关键词：沙棘干乳剂赖氨肌醇维B12口服液小儿厌食症疗效观察

我国仿制药人体生物等效性临床试验研究室建设的现状与发展路径

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药学进展 2016年第12期40卷 883-889页

作者：庞建新吴婷许重远刘叔文南方医科大学药学院广东广州510515 南方医科大学南方医院药物临床试验中心广东广州510515

我国开展仿制药一致性评价最主要的困难之一是临床试验资源不足,解决办法是考虑将生物等效性临床试验资格认定调整为备案管理。因此,对备案的医疗机构建设生物等效性试验研究室是一个潜在的挑战。文章分析了国内当前具备生物等效性/Ⅰ... 详细信息

我国开展仿制药一致性评价最主要的困难之一是临床试验资源不足,解决办法是考虑将生物等效性临床试验资格认定调整为备案管理。因此,对备案的医疗机构建设生物等效性试验研究室是一个潜在的挑战。文章分析了国内当前具备生物等效性/Ⅰ期临床资质的机构、分布、承担项目能力及生物等效性临床试验机构、药物分析实验室和合同研究组织之间的关系等,对仿制药生物等效性临床试验研究室的建设内容和规模展开讨论,供业内及监管部门参考。

关键词：仿制药生物等效性分析临床试验研究室

深度学习重建算法在低辐射剂量头颈联合CT血管成像中的应用价值

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中华放射医学与防护杂志 2024年第1期44卷 53-59页

作者：李杨飞朱卫萍侯怡迪庞坚信方奕程朱华勇浙江省台州医院放射科临海317000

目的探讨深度学习重建算法(DLIR)与自适应统计迭代重建算法(ASiR-V)在头颈部CT血管成像(CTA)中检查剂量和成像质量的差异。方法前瞻性收集因头颈部血管疾病行头颈部CTA检查的患者80例。按照检查的先后顺序分为A组和B组,每组40例。A组采... 详细信息

目的探讨深度学习重建算法(DLIR)与自适应统计迭代重建算法(ASiR-V)在头颈部CT血管成像(CTA)中检查剂量和成像质量的差异。方法前瞻性收集因头颈部血管疾病行头颈部CTA检查的患者80例。按照检查的先后顺序分为A组和B组,每组40例。A组采用管电压120kV,噪声指数11.0,ASiR-V50%重建;B组采用管电压80kV,噪声指数9.0,分别采用ASiR-V50%重建(B1组)和DLIR-H重建(B2组)。采用独立样本t检验比较两组的辐射剂量和图像质量。采用Kruskal-wallis检验和Wilcoxon秩和检验用于比较两种成像方式的辐射剂量和主观、客观图像质量。比较组间强化血管CT值,感兴趣区(ROI)的信号与噪声,计算信噪比(SNR)和对比信噪比(CNR)。结果A、B两组有效辐射剂量分别为(0.77±0.08)、(0.45±0.05)mSv,差异有统计学意义(t=21.96,P<0.001)。A、B1、B23组图像的主动脉弓、颈动脉起始部、颈动脉分叉层面、大脑中动脉M1段强化血管CT值、SD、SNR、CNR,差异均有统计学意义(F=67.69、68.50、50.52、74.10、63.10、91.22、69.16,P<0.001)。A、B1、B23组图像质量主观评分差异有统计学意义(Z=71.06,P<0.05)。结论DLIR算法能够在进一步降低头颈部CTA检查辐射剂量的同时,明显地减少图像噪声,保证了图像质量,具有良好的临床应用价值。

关键词： X射线计算机体层摄影术辐射剂量深度学习重建算法图像质量