检索结果-南通市图书馆

super-Enrichment Mechanisms of Strategic Critical Metal Deposits:Current Understanding and Future Perspectives

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2023年第4期34卷 1295-1298页

作者： Shao-Yong Jiang Wei Wang hui-min su State Key Laboratory of Geological Processes and mineral Resources Collaborative Innovation Center for Exploration of Strategic Mineral ResourcesSchool of Earth ResourcesChina University of GeosciencesWuhan 430074China

0 INTRODUCTION Critical metals are a recently proposed classification for strategic metal resources in the world. These metals are essential and critical for modern industry and economic development but face high supply risks(Hou et al., 2020). Four groups of critical metals are proposed, namely, rare metals(e. g., Li, Be, Rb, Cs, Nb, Ta, Zr, Hf, W and Sn).

关键词： metals critical rare

New Discovery of the Jinshui Tin Deposit in the Middle Section of the East Kunlun Orogenic Belt,Northwestern China:mineralization Age and Exploration Significance

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2024年第4期35卷 1373-1377页

作者： Xingkai Zhang Shao-Yong Jiang hui-min su Wei Wang Qinglin Xia Yunpeng Liu Shien Li State Key Laboratory of Geological Processes and mineral Resources Collaborative Innovation Center for Exploration of Strategic Mineral ResourcesSchool of Earth ResourcesChina University of GeosciencesWuhan 430074China Third Geological Exploration Institute of Qinghai Nonferrous Geological and mineral Exploration Bureau Xining 810000China

Tin,as one of the most important critical metals,has at-tracted great attention worldwide(Jiang et al.,2023,2020).China has the largest amount of tin resources in the world,ac-counting for nearly one-fourth of the world’s total(Jiang et al.,2020;Chen and Sheng,2015).Tin deposits in China mainly occur in the Nanling Range in southern China,the Sanjiang Basin in southwestern China,and the Great Xing’an Range in northeastern China,which account for 98%of the country’s tin resources,whereas tin deposits are relatively rare in north-western China(Ni et al.,2023;Chen et al.,2014,1992).

关键词： Middle northeastern southwestern

A versatile strategy for convenient circular bivalent functional nucleic acids construction

在线全文

学校读者我要写书评

暂无评论

National Science Review 2023年第2期10卷 146-156页

作者： Xiao-Jing Zhang Zhuo Zhao Xia Wang min-hui su Lili Ai Yingying Li Quan Yuan Xue-Qiang Wang Weihong Tan Molecular Science and Biomedicine Laboratory (MBL) State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical Engineering College of Biology Aptamer Engineering Center of Hunan ProvinceHunan University Institute of Molecular Medicine (IMM) Renji HospitalShanghai Jiao Tong University School of Medicine and College of Chemistry and Chemical EngineeringShanghai Jiao Tong University The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) Hangzhou Institute of Medicine (HIM)Chinese Academy of Sciences

Functional nucleic acids(FNAs),such as aptamers,nucleic acid enzymes and riboswitches play essential roles in various fields of life *** of ingenious chemical moieties toward FNAs can enhance their biomedical properties and/or confer them with exogenic biological functions that,in turn,can considerably expand their biomedical applications,or even improve their clinical ***,we report the first example of a general chemical tailoring strategy that enables the divergent ligation of D NA *** applying this technology,different types of aptamers and single-stranded nucleic acids of various lengths could be efficiently tailored to deliver the designed circular bivalent aptamers(CBApts) and cyclized DNA se quences with high *** is worth noting that CBApts exhibited significantly enhanced nuclease resistance,as well as considerably improved binding,targeting and tumor tissue enrichment abilities,which may pave the way for different investigations for biomedical purposes.

关键词： circular bivalent aptamers click chemistry chemical ligation

Discovery and Significance of Layered Chromite mineralization in Mafic-Ultramafic Rocks from the Gayahe Area of the East Kunlun Orogenic Belt,Northwestern China

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Earth Science 2024年第4期35卷 1367-1372页

作者： Shao-Yong Jiang Hailin Xie Wenqi Ren Bin Wang Feng Yuan Xiufeng Liu hui-min su State Key Laboratory of Geological Processes and mineral Resources Collaborative Innovation Center for Exploration of Strategic Mineral ResourcesSchool of Earth ResourcesChina University of GeosciencesWuhan 430074China Qinghai Engineering Research Center of Deep Exploration Technology for Large and Ultra-Large Gold Deposits around Qaidam Basin First Geological Exploration Institute of Qinghai ProvinceHaidong 810600China

0 INTRODUCTION Chromium(Cr)is one of the most important strategic critical metals in *** primary chromite deposits can be divided into two types according to their geological setting and occurrences:podiform chromite and stratiform/layered chromite(Stowe,1994;Paktunc,1990).Podiform chromites mainly occur in ophiolites or mantle peridotites(Yang et al.,2022,2010;Bao et al.,1999).

关键词： China mantle setting

Factors controlling the metal fertilization of granitic magma: Constraints from amphibole and biotite geochemistry of the Shangcheng pluton， Dabie orogen， Central China

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2024年

作者： Cheng-Lai Deng hui-min su Wu Li Wen-Tian Li State Key Laboratory of Geological Processes and mineral Resources， Collaborative Innovation Center for Exploration of Strategic mineral Resources， School of Earth Resources， China University of Geosciences Wuhan School of Resources and Geosciences， China University of mining and Technology

It is very common for similar granitoids to be emplaced in the same tectonic region， with some being metal-fertilized while others are barren. The reasons for this are still not clear. Here， we take the Shangcheng pluton as an example. This pluton occurs close to the giant Shapinggou porphyry Mo deposit， and we use amphibole and biotite geochemistry as sensitive tracers to explore this issue. The Shangcheng granitoids comprise the Sigudun （SGD） and Shiguwa （SGW） units， with emplacement ages ranging from 140 ± 3 Ma to 134 ± 2.4 Ma， as revealed by titanite U-Pb dating. The geochemical data of amphibole and biotite indicate that the magma intruded from depths of ～3.3 km to ～2.3 km with increasing oxygen fugacity. The modeled results indicate that water content is an essential factor for metal fertilization， as the Shangcheng pluton has a lower water content than the Shapinggou Mo-bearing granite. The Shangcheng pluton is also characterized by fluorine-poor conditions， with lower halogen fugacity values of IV（F） and log (f H2O/f HF)fluid. In contrast， the increasing Y/Ho and Nb/Ta ratios of the Shapinggou Mo-bearing granite indicate the F-rich nature of the fertilized Shapinggou magma， and its lower Zr/Hf and K/Rb ratios suggest a greater magma differentiation. Therefore， water-poor and F-poor magma， in combination with low-degree fractional crystallization， may be the major controlling factors responsible for the Mo-barren nature of the Shangcheng pluton.

关键词：

Influence of Horizontal Flow on Atrium in High-Rise Residential Building

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

湖南大学学报（自然科学版） 2009年第S1期36卷 15-18页

作者： LI Nian-ping,LI Jing,HE Dong-yue,ZHANG min-hui,HOU su-juan(College of Civil Engineering,Hunan University,Changsha,Hunan 410082,China) College of Civil Engineering Hunan University Changsha 410082 China

In this study a 10-storied residential building model was employed to clarify the ventilation characteristics of the atrium and the rooms,which were effected by the different forms of lateral *** experiment was conducted under the combined effect of wind force and thermal buoyancy,and the similarity requirements were *** results have shown that the different forms of lateral openings cause the different ventilation effect of the building,and also have some certain *** conclusions provide a theoretical foundation for how to use the ventilation of atrium better in high-rise residential building.

关键词： high-rise residential building atrium model experiment horizontal flow natural ventilation

Influences of protein to energy ratios in breakfast on mood, alertness and attention in the healthy undergraduate students

在线全文

学校读者我要写书评

暂无评论

Health 2011年第6期3卷 383-393页

作者： Yao-Chi Zeng Shun-min Li Guo-Liang Xiong hui-min su Jian-Cheng Wan Shenzhen Traditional Chinese Medicine Hospital Shenzhen China

Background: The high protein (HP) breakfast reduced gastric emptying and the most satiat-ing macronutrient appears to be dietary protein. Few studies have investigated the effects of protein to energy ratio in breakfast on mood, alertness and attention. Objective: This study was designed to investigate whether the HP breakfast is more beneficial to mood, alertness and attention of the healthy undergraduate student than adequate-protein (AP) breakfast through the rising body temperature and re-maining stable blood glucose or through other physiologic processes. Methods: Thirteen healthy male undergraduate students (18 - 23 y) were studied in a double-blind, randomized crossover design. Blood samples, body tem-perature, satiety, mood and Continuous Per-formance Test (CPT) were assessed after the consumption of two isocaloric breakfasts that differed in their protein and carbohydrate con-tent: an HP breakfast (50%, 30%, and 20% of energy from protein, carbohydrate, and fat, re-spectively) or an AP breakfast (10%, 70%, and 20% of energy from protein, carbohydrate, and fat, respectively). Results: Consumption of an HP breakfast resulted in more steady glucose and insulin than AP breakfast consumption (p sumption (p < 0.05). And most important, the positive mood and CPT scores were higher after HP breakfast than after AP breakfast intake (p < 0.05). Conclusion: HP breakfast can effectively stabilize postprandial serum glucose concentration and elevate post-prandial temperature of healthy male under-graduate students. Our present findings dem-onstrate the relationship between HP breakfast and mood, alertness and attention. This study indicated that HP breakfast may enhance human performance probably by increasing the thermic effect of a food and elevating body temperature.

关键词： Protein Body Temperature Mood Alertness Attention

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑Life Lithium Metal Batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-min Qin Zhongliang Li Wen‑Xia su Jia‑min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang Li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： Chonglin su Taiqi Huang Meiyu Zhang Yanyu Zhang Yan Zeng Xingxing Chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress