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Formation and evolution of supercritical geofluid

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Science China Earth Sciences 2025年第1期68卷 39-51页

作者： Huaiwei NI Yilin XIAO Xiaolin XIONG Xiandong LIU Chunxiao GAO Yi-Xiang CHEN Yunguo LI Wan-Cai LI Xuan GUO Yang-Yang WANG Dong-Bo tan Li ZHANG State Key Laboratory of Lithospheric and Environmental Coevolution University of Science and Technology of China Deep Space Exploration Laboratory/School of Earth and Space Sciences University of Science and Technology of China Guangzhou Institute of Geochemistry Chinese Academy of Sciences School of Earth Sciences and Engineering Nanjing University State Key Lab of Superhard Materials Jilin University

In this work, we provide a comprehensive review on the formation, evolution, properties, and effects of supercritical geofluid. In Earth's interior, enhanced miscibility between H2O and silicate by the addition of special components or by the increase of pressure and temperature gives rise to supercritical geofluid with a significant amount of both H2O and silicate *** formation of supercritical geofluid in magmatic-hydrothermal systems, typified by pegmatite system, is governed by meltfluid critical curve. The formation of supercritical geofluid in metamorphic systems, typified by subducted slab, is governed by the second critical end point. Experimental results suggest that the presence of boron and fluorine in pegmatite system makes it possible to form supercritical geofluid at crustal depths, but the release of supercritical geofluid from subducted slab is withheld until almost 100 km depth. A major presence of both H2O and depolymerized structural units（monomers, dimers, etc.） endows supercritical geofluid with unique physical properties including low density, low elastic moduli, low viscosity, high diffusivity,and high electrical conductivity. Supercritical geofluid can effectively mobilize a variety of elements even including high field strength elements and heavy rare earth elements. The chemical signatures of supercritical geofluid can be inherited by metasomatized mantle and mantle-derived melts, and this could give an explanation of the oxidation of arc magmas. Phase separation of supercritical geofluid through the mechanism of spinodal decomposition leads to formation of a melt network. Multiphase fluid inclusions recovered from subduction zone rocks and pegmatites are possible relics of supercritical geofluid. Supercritical geofluid can cause electrical anomaly and low seismic velocity near the top of subducted slab, and can be linked with intermediate-focus earthquakes. Supercritical geofluid may have played a crucial role in the formation of pe

关键词： Supercritical geofluid Miscibility Subduction zone Pegmatite

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Hot Compress with Chinese Herbal Salt Packets Reducing PICC Catheter Complications: A Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2018年第11期24卷 809-814页

作者： WU Xiao-fei YU Ya-juan YING ling-mei tan Wei-fen ZHAN Xiao-yan WANG ling-cong Central Venous Catheter Maintenance Center the First Affiliated Hospital of Zhejiang Chinese Medical University Department of ICU the First Affiliated Hospital of Zhejiang Chinese Medical University

Objective： To explore the preventive effect of applying hot compress with Chinese herbal salt packets（CHSP） to puncture vessels under aseptic conditions during peripherally inserted central catheter（PICC） on postoperative phlebitis. Methods： A total of 720 hospitalized patients undergoing first PICC were assigned to treatment and control groups（360 cases each group） according to a random number table. The control group received conventional catheterization and nursing care. The treatment group was first given hot compress with CHSP（which consisted of honeysuckle 30 g, Semen brassicae 30 g, Salvia miltiorrhiza 30 g, Angelica dahurica 30 g, Semen raphani 30 g, Evodia rutaecarpa 30 g, and coarse salt 20 g） on the punctured vessel under aseptic conditions for 5–10 min before conventional catheterization. The main efficacy indices were the vessel diameters before and during catheterization and the success rate of a single catheter, and the secondary efficacy indiex was the incidence of superficial phlebitis within 1 week after catheterization. Results： The vessel diameter during catheterization of the treatment group was remarkably increased compared with the control group [（7.96±0.42） mm vs.（4.39±0.54） mm, P〈0.01]. The success rate of the single catheter of the treatment group was significantly higher than that of the control group [94.00%（329/350） vs. 73.72%（244/329）, P〈0.01]. The incidence of superficial phlebitis within 1 week after catheterization in the treatment group was lower than that in the control group（P=0.007）. There was no adverse event with CHSP. Conclusion： Hot compress with CHSP during PICC is applicable as it can effectively improve the success rate of a single catheter and reduce the incidence of superficial phlebitis after catheterization（Trial registration No. ChiCTR-ONC-17010498）.

关键词： Chinese herbal salt packets hot compression peripherally inserted central catheter catheterization phlebitis success rate of single catheter randomized controlled trial

The thalamic-primary auditory cortex circuit: a pathway to resilience in the face of stress and a potential target for depression treatment

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Chinese Journal of Natural Medicines 2023年第11期21卷 801-802页

作者： tan Jianling YE ling School of Pharmaceutical Sciences Southern Medical UniversityGuangzhou 510515China State Key Laboratory of Natural Medicines China Pharmaceutical UniversityNanjing 210009China

Major depressive disorder(MDD),characterized by anhedonia,loss of motivation,behavioral despair,and cognitive abnormalities[1],stands as the second leading cause of disability worldwide[2]owing to its heightened prevalence,suicide rates,and recurrence[3].Empirical evidence and clinical observations have substantiated the notion that patients with MDD often exhibit compromised auditory perception[4].

关键词： Depression Resilience Stress Primary auditory cortex Thalamic

Sperm DNA damage has a negative effect on early embryonic development following in vitro fertilization

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Asian Journal of Andrology 2018年第1期20卷 75-79页

作者： Wei-Wei Zheng Ge Song Qi-ling Wang Shan-Wen Liu Xiao-Li Zhu Shun-mei Deng An Zhong Yu-mei tan Ying tan Reproductive Medicine Center Family Planning Research Institute of Guangdong Province Guangzhou 510060 China Key Laboratory of Male Reproductive and Genetics Family Planning Research Institute of Guangdong Province Guangzhou 510060 China

Sperm DNA damage is recognized as an important biomarker of male infertility. To investigate this, sperm DNA damage was assessed by the sperm chromatin dispersion （SCD） test in semen and motile spermatozoa harvested by combined density gradient centrifugation （DGC） and swim-up in 161 couples undergoing in vitro fertilization （IVF）. Semen analysis and sperm DNA damage results were compared between couples who did or did not achieve pregnancy. The sperm DNA damage level was significantly different between the two groups （P 〈 0.05） and was negatively correlated with IVF outcomes. Logistic regression analysis confirmed that it was an independent predictor for achieving clinical pregnancy. The effects of different levels of sperm DNA damage on IVF outcomes were also compared. There were significant differences in day 3 embryo quality, blastocyst formation rate, and implantation and pregnancy rates （P 〈 0.05）, but not in the basic fertilization rate between the two groups. Thus, sperm DNA damage as measured by the SCD appears useful for predicting the clinical pregnancy rate following IVF.

关键词： DNA damage in vitro fertilization pregnancy outcome sperm

黑木耳可溶性膳食纤维功能特性和降脂活性研究

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食品工业科技 2025年第2期46卷 112-121页

作者：尚学钰美合日班苏玲王琦吉林农业大学食药用菌教育部工程研究中心吉林农业大学植物保护学院

本研究以热水提取黑木耳多糖后剩余的黑木耳残渣为原料，通过复合酶法提取黑木耳可溶性膳食纤维（Auricularia heimuer soluble dietary fiber,HSDF），对其分子量、单糖组成及糖链组成进行分析，检测其持水力、持油力、膨胀力等理化性... 详细信息

本研究以热水提取黑木耳多糖后剩余的黑木耳残渣为原料，通过复合酶法提取黑木耳可溶性膳食纤维（Auricularia heimuer soluble dietary fiber,HSDF），对其分子量、单糖组成及糖链组成进行分析，检测其持水力、持油力、膨胀力等理化性质，并通过测定胆固醇吸附能力、脂肪酶抑制率及胆酸盐结合率，评价其体外降脂活性。通过高脂喂养（High-fat diet,HFD）C57BL/6J小鼠构建肥胖动物模型，给予黑木耳可溶性膳食纤维治疗，评估HSDF治疗肥胖小鼠的体重、生化指标以及肝脏组织和脂肪组织病理学改变特征，探究其在肥胖小鼠模型中的降脂效果。结果表明，HSDF的相对分子量为4.14×10～5 Da，是由甘露糖、葡萄糖醛酸、葡萄糖、半乳糖、木糖和岩藻糖聚合而成的混合物，摩尔比为1808.87:0.00278:4.43:2.13:2.84:5.01。HSDF平均持水力为（11.62±0.302）g·g-1，平均持油力为（2.95±0.259）g·g-1，平均膨胀力为（12.7±0.434）mL·g-1，对肠道胆固醇的吸附能力为6.63 mg·g-1；浓度为1.2 mg·mL-1时，对甘氨胆酸钠和牛黄胆酸钠的结合率可达92.91%和90.93%。此外，浓度为2.0 mg·mL-1的HSDF对胰脂肪酶抑制率为75%，具有良好的体外降脂活性。同时，HSDF可以显著（P<0.05）改善HFD小鼠脏器指数，改善HFD小鼠肝脏中脂质积累、炎性细胞浸润及脂肪组织中脂肪细胞增大，对于附睾白色脂肪组织细胞面积的改善可以达到50%以上，具有较好的体内降脂效果，结果可为后续黑木耳膳食纤维的研究以及功能食品的研发提供数据支持与理论基础。

关键词：黑木耳可溶性膳食纤维体外降脂功能特性理化性质高脂饮食体内降脂

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Dependence on forming parameters of an integral panel during the electromagnetic incremental forming process

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Chinese Journal of Aeronautics 2018年第7期31卷 1625-1634页

作者： Jinqiang tan mei ZHAN Hongwei LI State Key Laboratory of Solidification Process School of Materials Science & Engineering Northwestern Polytechnical University

Nowadays, more and more attentions are paid to electromagnetic incremental forming（EMIF）, especially for a part with a large-scale size, e.g., an integral panel with stiffened ribs. In this work, the bending of a panel into a double-curvature profile via EMIF is carried out experimentally and evaluated by comparing the formed profile with the desired profile. During the process,discharges at four positions along different discharge paths are designed. The effects of forming parameters on the die-fittingness of the workpiece are discussed, for which two evaluation indices are used to judge forming results. The results show that a discharge voltage in an incremental mode is helpful to improve the fittingness and avoid the collision rebound against the die at the same *** at the diagonal positions with the ‘‘X＂ discharge path exhibits the minimal shape deviation and the best forming uniformity. On the contrary, discharging at the parallel positions with the ‘‘Z＂ discharge path obtains the worst forming quality. Overlap of the coil at different positions should be given during EMIF; however, a lower overlap rate of the coil helps improve the forming quality. The results obtained in this work are useful for forming integral panels with stiffened ribs via the EMIF process.

关键词： Electromagnetic incrementalforming (EMIF) Forming uniformity Integral panel Parameters Shape deviation

A Li_(3)Bi/LiF interfacial layer enabling highly stable lithium metal anode

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Rare Metals 2023年第12期42卷 4081-4090页

作者： Lei tan Peng Chen Qiao-Yun Chen Xing Huang Kang-Yu Zou Yan-mei Nie ling-Jun Li Changsha University of Science and Technology Changsha 410114China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China

Lithium metal anode is considered the alternative to graphite anode due to its ultra-high theoretical capacity of 3860 mAh·g^(-1).However,serious Li dendrite growth and drastic electrolyte side reactions restrain the commercial application of Li metal *** this work,a Li_(3)Bi/LiF interfacial layer is constructed on the surface of the Li metal anode by a spontaneous substitution *** composite interfacial layer possesses excellent ionic conductivity,high mechanical strength,and great electrolyte wettability,which ensures fast Li-ion transfer and uniform Li deposition of the Li_(3)Bi/LiF@Li ***,the Li_3Bi/LiF@Li symmetric cell provides a cycle life of more than 400 h with only 73 mV voltage polarization at 10 mA·cm^(-2).By pairing with commercial NCM622 cathode,the Li_(3)Bi/LiF@Li full cell exhibits a long cycle at a rate of 2 C.

关键词： Lithium metal anode Li_(3)Bi LiF interfacial layer Dendrite-free High current density

NASTCNN: a spatio-temporal convolutional neural network with non-local attention mechanism for image-induced brain activity pattern recognition

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Optoelectronics Letters 2025年

作者： tan Xiangxin SHAO Mingxiong ZENG Ke GU Yue School of Computer Science and Engineering， Tianjin University of Technology Engineering Research Center of Learning-Based Intelligent System (Ministry of Education)， Tianjin University of Technology Krembil Research Institute， University Health Network

Deciphering the brain’s visual processing mechanisms has always been a hot topic. Using neural signal patterns to predict the corresponding external visual stimuli is crucial in understanding the interaction of real visual scenes. There are some challenges in the study of image-induced brain activity pattern recognition based on electroencephalogram (EEG)， e.g. how to fully utilize the effective features of EEG signals to improve the classification， and how the frequency and the length of EEG effect the model performance. We design an experimental paradigm that minimizes the interaction between visual stimuli， and propose a spatio-temporal convolutional neural network with non-local attention mechanism (NASTCNN) for image-induced brain activity pattern recognition. The framework utilizes non-local feature extraction operations to realize global information interaction between EEG signals over long distances and enhance the feature expression of some important information. Our model achieves the best performance on both MNIST-EEG and ImageNet-EEG datasets. The classification results are 24.00% and 50.10% respectively， higher than the random probability. We also analyze the effects of different EEG frequency bands and time subsequences of different lengths on the classification performance and which brain regions are activated over time. The results show that when full frequency band and entire length sequence are selected， the classification result is optimal. The occipital region is essential for processing visual tasks， and the temporal region and some frontal regions also play important role in the later stage of visual decoding. This research can help us better understand the visual processing mechanism of the brain.

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Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress

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Journal of Integrative Agriculture 2013年第1期12卷 80-86页

作者： tan Yue LI ling LENG Chuan-yuan LI Dong-mei CHEN Xiu-de GAO Dong-sheng National Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering Shandong Agricultural University

High temperature stress （HT） is efficient in breaking endo-dormancy of perennial trees. The effects of HT （50°C） on the respiration of dormant nectarine （Prunus persica var. nectariana cv. Shuguang） vegetative buds were evaluated in the research. We found that bud respiration was transiently inhibited by HT and the pentose phosphate pathway （PPP） and the cytochrome C pathway （CYT） were significantly affected. On the substrate level, PPP was activated in the HT-treated buds compared with the control group. However, the activation did mot occur until hours after HT treatment. The tricarboxylic acid cycle （TCA） in both the HT-treated buds and in the control group proceeded at a low level most of the time compared with total respiration. On the electron transfer level, CYT was transiently inhibited by HT but became significantly active in the later stage. CYT operation in the control group exhibited an attenuation process. The alternative pathway （ALT） fluctuated both in the HT-treated samples and in the control. The results suggest that the temporary CYT inhibition and the following PPP activation may be involved in HT-induced bud dormancy release and budburst mechanisms.

关键词： high temperature stress dormancy release respiration nectarine vegetative buds