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Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example

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Acta Oceanologica Sinica 2003年第4期22卷 569-576页

作者： Gong Jianming1, Chen Jianwen 1, 2, Li Gang1, Zhang Xunhua1, Li Jipeng3. Huang Fulin1 1. Qingdao Institute of Marine Geology, Qingdao 266071, China. 2. Ocean University of China, Qingdao 266003. China 3. {3. Institute of Petroleum Chemical Exploration, China Petroleum Exploration and Development Research Institute, {3. 23.022,China Qingdao Inst Marine Geol Qingdao 266071 Peoples R China Ocean Univ China Qingdao 266003 Peoples R China China Petr Explorat & Dev Res Inst Hefei Inst Petr Chem Explorat Hefei 230022 Peoples R China

Light hydrocarbon (methane, ethane, propane, butane and CO2) test and C isotopic analysis of CO are conducted for over 100 lower-layer atmospheric samples from the East China Sea slope and the Okinawa Trough. The results show that the lower-layer atmosphere mainly consists of CO2 and then of CH4, and the CO2 concentrations are calculated to have a high average value of 0.87 omega/10(-2) about three times that of the regional background (0-3.omega/10(-2)). The result also shows that the average value of C isotope - 20.8 x 10(-3. is given to the CO2, inferring that it is inorganic gas. Thus, for the future 's work in the Okinawa Trough, special attention should be paid to CO2 hydrate, which is very possibly an important hydrate type.

关键词： lower-layer atmosphere hydrocarbon test C isotopic analysis deep-sea petroleum gas hydrate

Discovery of low grade metamorphic volcanic rock sheets within UHP in Dabie Mts. and its implications

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Chinese Science Bulletin 1997年第14期42卷 1199-1203页

作者： DONG Shuwen, WANG Xiaofeng and HUANG Dezhi1. Chinese Academy of Geological Sciences (CAGS), Beijing 10003., China 2. Institute of Geomechanics of CAGS, Beijing 100081 China 3. Anhui Institute of Geological Sciences, hefei 23.001 Chinese Academy of Geological Sciences (CAGS) Beijing 100037 China

THE ultrahigh-pressure metamorphic zone (UHP), outcropping in the central and southernDabie Mts. with an area of about 1000 km^2, may be the largest one in the world. The forma-tion and exhumation mechanism of the UHP rocks become a hot point in the study of continen-tal orogen. The first finding of the Shiqiao structural window, which is composed of low

关键词： ultrahigh-pressure metamorphic zone (UHP) low grade metamorphic rock sheets Dabie Mts.

Determination of cell volume during equilibrium freezing process

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Science Bulletin 2003年第15期48卷 1551-1554页

作者： ZHAO Gang1, HE Liqun1, WANG Peitao2, DING Weiping1, XIE Xiaojian1, LIU Zhong3. ZHANG Haifeng1, SHU Zhiquan1, LUO Dawei1 & GAO Dayong1,4 1. Cryobiomedical Engineering Research Institute, Department of Thermal Science and Energy Engineering, University of Science and Technology of China, hefei 23.027, China 2. School of Life Sciences, University of Science and Technology of China, hefei 23.027, China 3. Red Cross and Blood Center of hefei, hefei 23.022, China 4. Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506-0108, USA Correspondence should be addressed to Zhao Gang (e-mail: cooky@ ***) Cryobiomedical Engineering Research Institute Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230027 China School of Life Sciences University of Science and Technology of China Hefei 230027 China Red Cross and Blood Center of hefei Hefei 230022 China Department of Mechanical Engineering University of Kentucky Lexington KY 40506-0108 United States

A new type electronic particle counter (EPC, MultisizerTM 3. Beckman Coulter Inc., USA) was used to determine the volumes of human red blood cells (RBCs) in NaCl solutions of different osmolalities. The thermodynamics model describing cell response during freezing process was used to simulate the volume change of RBC in 0.9% NaCl solution during equilibrium freezing process. It was assumed that the effect of temperature on cell volume can be neglected compared to that of osmolality, then by using the phase diagram for the binary system sodium chloride/water, the osmolalities of the NaCl solution under different sub-zero temperatures can be obtained (converted from mass concentration), then the calculated values of RBC volumes can be validated by the experiments.

关键词： EPC osmolality RBC Van抰 Hoff cell volume.

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基于人工智能的癌痛中医辨证模型的构建研究

中华中医药学刊 2024年

作者：吴冰张柳柳郭永安钱琪杰吴静 1.江苏省肿瘤医院&江苏省肿瘤防治研究所&南京医科大学附属肿瘤医院 2.南京邮电大学 3.江苏省护理学会江苏省肿瘤医院&江苏省肿瘤防治研究所&南京医科大学附属肿瘤医院南京邮电大学江苏省护理学会

目的建立基于人工智能的癌痛中医辨证模型，为癌痛中医智能辨证工作的开展提供依据。方法检索中国知网、维普中文科技期刊数据库、万方数据库、中国生物医学文献数据库、古今医案云平台建库至2023.9月收录的癌痛中医病案数据，采用... 详细信息

目的建立基于人工智能的癌痛中医辨证模型，为癌痛中医智能辨证工作的开展提供依据。方法检索中国知网、维普中文科技期刊数据库、万方数据库、中国生物医学文献数据库、古今医案云平台建库至2023.9月收录的癌痛中医病案数据，采用经过超参数调优的线性支持向量分类(Linear support vector classification，LSVC)、最近质心 (Nearest Centroid，NC)、多项式朴素贝叶斯 (Multinomial Na?ve Bayes，MNB)、随机森林 (Random Forest， RF)、随机梯度下降(Stochastic Gradient Descent，SGD)、多层感知机 (Multilayer Perceptron， MLP)等机器学习算法对数据集进行量化分析，建立癌痛的诊断辨证模型。运用五折交叉验证对模型进行评价，评价指标包括Accuracy、Precision、Recall、F1 score及AUC值。结果癌痛中医四诊信息为输入变量共72项，输出变量为癌痛中医证型共6项。6种模型的拟合效果较好，Accuracy、Precision、Recall、F1 score均在0.89以上，AUC值达0.94以上；其中NC模型的准确率、查准率与查全率最高，Accuracy、Precision、Recall、F1score分别为0.978、0.980、0.978、0.977，AUC值达0.986，均高于其他算法模型，其参数的中医解释基本符合中医诊断原理。结论基于NC算法模型建立的癌痛中医辨证模型具有较高的诊断及预测能力，可为临床医务工作者开展癌痛中医智能辨证提供借鉴。

关键词：人工智能机器学习癌痛中医辨证模型医案辨证

Simultaneously inducing synthesis of semiconductor selenium multi-armed nanorods and nanobars through bio-membrane bi-templates

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Science China Chemistry 2004年第6期47卷 507-511页

作者： LI Li1, WU Qingsheng1 DING Yaping2 & LI Ping3.1. Department of Chemistry, Tongji University, Shanghai 200092, China 2. Department of Chemistry, Shanghai University, Shanghai 20043., China 3. Department of Food, Anhui Agricultural University, {3. 23.03., China 1. Department of Chemistry Tongji University 200092 Shanghai China 2. Department of Chemistry Shanghai University 200436 Shanghai China 3. Department of Food Anhui Agricultural University 230036 Hefei China

Multi-armed nanorods and nanobars of semiconductor selenium were simultane- ously synthesized in the light of biomineralization process through bio-membrane bi-templates of rush at room temperature. The multi-armed nanorods are 60 nm in diameter and 1.5 μm in length; the nanobars are 150 nm in diameter and 1000—1100 nm in length. The XRD pattern indicates that these nanocrystals were crystallized in the hexagonal structure with lattice constants a = 0.43. nm, c = 0.495 nm. The possible formation mechanism was investigated.

关键词： selenium, multi-armed nanorods, nanobars, bio-membrane, bi-templates.

广东省人力资源和社会保障厅广东省财政厅国家税务总局广东省税务局关于印发单位从业的灵活就业劳动者等特定人员参加工伤保险办法的通知(粤人社规〔2024〕6号)

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广东省人民政府公报 2024年第11期 19-25页

作者： 1.广东省人力资源和社会保障厅 2.广东省财政厅 3.国家税务总局广东省税务局广东省人力资源和社会保障厅广东省财政厅国家税务总局广东省税务局

各地级以上市人力资源和社会保障局、财政局,省社会保险基金管理局,国家税务总局广州、各地级市、横琴粤澳深度合作区税务局,省税务局第三税务分局:现将《广东省人力资源和社会保障厅广东省财政厅国家税务总局广东省税务局关于单位从业... 详细信息

各地级以上市人力资源和社会保障局、财政局,省社会保险基金管理局,国家税务总局广州、各地级市、横琴粤澳深度合作区税务局,省税务局第三税务分局:现将《广东省人力资源和社会保障厅广东省财政厅国家税务总局广东省税务局关于单位从业的灵活就业劳动者等特定人员参加工伤保险的办法》印发给你们.

关键词：国家税务总局灵活就业税务分局社会保险基金管理工伤保险人力资源和社会保障深度合作广东省财政厅

cDNA cloning,sequence analysis,and recombinant expression of akitonin beta,a C-type lectin-like protein from Agkistrodon acutus

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Acta Pharmacologica Sinica 2004年第03期25卷 118-123页

作者： Xiang-dong ZHA1,2,Jing LIU1,Kang-sen XU3.1 School of Life Science,University of Science and Technology,hefei 23.026 School of Life Science,Anhui University,2 hefei 23.03. National Institute for Control of Pharmaceuticals and Biological Products,Beijing 100050,China 3 School of Life Science University of Science and Technology School of Life Science Anhui University National Institute for Control of Pharmaceuticals and Biological Products Beijing 100050 China

AIM: To clone the cDNA of a new member of snake venom C-type lectin-like proteins, to study its structure- function relationships and to achieve its recombinant production. METHODS: PCR primers were designed based on the homology and cDNA was amplified by RT-PCR using total RNA from snake venom gland as the template. The PCR products were cloned into the plasmid pGEM-T and sequenced. The deduced protein sequence was analyzed with some bioinformatic programs. A recombinant expression plasmid was constructed using pBAD- TOPO as vector and transformed into *** TOP10 competent cells. RESULTS: A novel cDNA sequence encod- ing akitonin β was found and accepted by GenBank (accession number AF3.7100). Akitonin β consists of a typical carbohydrate recognition domain (CRD) of C-type lectins, and it is homologous with other snake venom C-type lectin-like proteins. It was predicted to be a platelet antagonist. Upon induction with arabinose rAkitonin β express- ing in E coli was achieved at a high level (superior to 150 mg/L). The recombinant fusion protein exhibited inhibitory activities on rat platelet aggregation in vitro. CONCLUSION: A new member of snake venom C-type lectin-like proteins was discovered and characterized, and an efficient recombinant expression system was estab- lished for its production.

关键词： snake venoms cDNA akitonin C-type lectin-like proteins recombinant proteins structure- activity relationship

电针夹脊穴对腰椎间盘退变兔髓核细胞沉默信息调节因子1表达的影响

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中国中西医结合杂志 2024年

作者：程佩邹璟汪敏王昆秀张艳琳黄国付 1.湖北中医药大学针灸骨伤学院 2.湖北省武汉市中西医结合医院针灸科 3.广东省深圳市龙岗区妇幼保健院中医科湖北中医药大学针灸骨伤学院湖北省武汉市中西医结合医院针灸科广东省深圳市龙岗区妇幼保健院中医科

目的观察电针夹脊穴对腰椎间盘（IVD）退变（IDD）模型兔髓核细胞沉默信息调节因子1(SIRT1)表达的影响。方法选用25只雄性新西兰兔随机均分为正常组、模型组、假手术组、模型+电针组、模型+假电针组，每组5只。除正常组外，各组通过... 详细信息

目的观察电针夹脊穴对腰椎间盘（IVD）退变（IDD）模型兔髓核细胞沉默信息调节因子1(SIRT1)表达的影响。方法选用25只雄性新西兰兔随机均分为正常组、模型组、假手术组、模型+电针组、模型+假电针组，每组5只。除正常组外，各组通过造模器对L4～L5 IVD轴向加压28天制备IDD模型，其中假手术组仅安装造模器而不轴向加压；造模完成后，正常组、模型组、假手术组正常饲养，模型+电针组行L4、L5双侧夹脊穴电针干预，模型+假电针组仅针刺干预。观察并记录各组兔一般情况、步态功能评分，行磁共振成像（MRI）平扫观察IVD信号并进行Pfirrmann分级，分别采用Western Blot法和免疫组织化学方法检测髓核细胞SIRT1的表达。结果正常组一般情况良好，步态功能正常，磁共振成像呈均匀明亮的高信号，SIRT1蛋白表达丰富，SIRT1阳性细胞较高，假手术组情况与正常组接近（P>0.05）；与正常组比较，模型组一般情况不佳，步态评分显著降低（P<0.05）,IVD信号消失，Pfirrmann分级显著升高（P<0.05）,SIRT1蛋白表达降低（P<0.05）,SIRT1阳性细胞降低（P<0.05）；与模型组比较，模型组+电针组一般情况出现好转，兔精神状态更佳，步态评分显著增加（P<0.05）,IVD信号强度明显增强，Pfirrmann分级降低（P<0.05）,SIRT1蛋白表达升高（P<0.05）,SIRT1阳性细胞增多（P<0.05）；模型+假电针组有一定程度改善，但改善程度水平较低。结论轴向压力可诱导兔腰椎间盘发生退变，而电针能够促进兔髓核细胞SIRT1因子表达，一定程度上延缓细胞衰老，从而抑制腰椎间盘退变。

关键词：兔电针夹脊穴沉默信息调节因子1 髓核细胞

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基于结构化字典学习的判别稀疏微波成像方法

系统工程与电子技术 2024年

作者：孟洋周国如李洁张冰尘 1.中国科学院空天信息创新研究院 2.中国科学院空间信息处理与应用系统技术重点实验室 3.中国科学院大学电子电气与通信工程学院中国科学院空天信息创新研究院中国科学院空间信息处理与应用系统技术重点实验室中国科学院大学电子电气与通信工程学院

基于字典学习的合成孔径雷达（synthetic aperture radar，SAR）稀疏微波成像方法面对多类别目标时，字典中存在冗余信息导致成像准确性降低，针对此问题提出了一种基于结构化字典学习（structured dictionary learning，SDL）的判别稀... 详细信息

基于字典学习的合成孔径雷达（synthetic aperture radar，SAR）稀疏微波成像方法面对多类别目标时，字典中存在冗余信息导致成像准确性降低，针对此问题提出了一种基于结构化字典学习（structured dictionary learning，SDL）的判别稀疏微波成像方法。首先，利用SDL面向多类别目标训练获得包含多个子字典的结构化字典，每个子字典对应特定类别目标；其次，结合结构化字典构建判别稀疏微波成像模型，处理过程中根据不同子字典对目标的表征误差进行判别；最后根据判别结果选择对应类别子字典进行成像。实验结果表明，与现有的成像方法相比本文算法在降采样的条件下能够更好地抑制伪影模糊，提高成像的准确性。

关键词：结构化字典学习合成孔径雷达稀疏微波成像稀疏表征