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Stability of high-salinity-enhanced foam:Surface behavior and thin-film drainage

Petroleum Science 2023年第4期20卷 2343-2353页

作者： Lin sun xue-hui sun Yong-Chang Zhang Jun Xin Hong-Ying sun Yi-Bo Li Wan-Fen Pu Jin-Yu Tang Bing Wei National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500SichuanChina No.9 Oil Production Plant PetroChina Changqing Oilfield CompanyYinchuan750006GansuChina Research Institute of Geological Exploration and Development CNPC Chuanqing Drilling Engineering Company LimitedChengdu610501SichuanChina Department of Chemical and Petroleum Engineering United Arab Emirates UniversityAl AinAbu Dhabi15551United Arab Emirates

Cocamidopropyl hydroxyl sulfobetaine(CHSB)is one of the most promising foaming agents for high-salinity reservoirs because the salt in place facilitates its foam stability,even with salinity as high as 2×10^(5)mg/***,the synergistic effects between CHSB and salt have not been fully *** study utilized bulk foam tests and thin-film interferometry to comprehensively investigate the macroscopic and microscopic decay processes of CHSB foams with NaCl concentrations ranging from 2.3×10^(4)to 2.1×10^(5)mg/*** focused on the dilatational viscoelasticity and dynamic thin-film thickness to elucidate the high-salinity-enhanced foam *** increase in dilatational viscoelasticity and supramolecular oscillating structural force(Π_(OS))with salinity dominated the superior stability of CHSB *** increasing salinity,more CHSB molecules accumulated on the surface with a lower diffusion rate,leading to high dilatational moduli and surface elasticity,thus decelerating coarsening and ***,the number density of micelles in the thin film increased with salinity,resulting in increasedΠ***,the energy barrier for stepwise thinning intensified,and the thin-film drainage *** work conduces to understand the mechanisms behind the pronounced stability of betaine foam and can promote the widespread application of foam in harsh reservoirs.

关键词： High-salinity reservoirs Betaine foam Foam stability Dilatational viscoelasticity Disjoining pressure Thin-film interferometry

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The interaction between KIF21A and KANK1 regulates dendritic morphology and synapse plasticity in neurons

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Neural Regeneration Research 2025年第1期20卷 209-223页

作者： Shi-Yan sun Lingyun Nie Jing Zhang xue Fang Hongmei Luo Chuanhai Fu Zhiyi Wei Ai-hui Tang Hefei National Research Center for Physical Sciences at the Microscale CAS Key Laboratory of Brain Function and DiseaseMinistry of Education Key Laboratory for Membrane-less Organelles and Cellular DynamicsDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefeiAnhui ProvinceChina CAS Center for Excellence in Molecular Cell Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Neurobiology School of Life SciencesSouthern University of Science and TechnologyShenzhenGuangdong ProvinceChina Brain Research Center Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina

Morphological alterations in dendritic spines have been linked to changes in functional communication between neurons that affect learning and ***-4 KIF21A helps organize the microtubule-actin network at the cell cortex by interacting with KANK1;however,whether KIF21A modulates dendritic structure and function in neurons remains *** this study,we found that KIF21A was distributed in a subset of dendritic spines,and that these KIF21A-positive spines were larger and more structurally plastic than KIF21A-negative ***,the interaction between KIF21A and KANK1 was found to be critical for dendritic spine morphogenesis and synaptic *** of either KIF21A or KANK1 inhibited dendritic spine morphogenesis and dendritic branching,and these deficits were fully rescued by coexpressing full-length KIF21A or KANK1,but not by proteins with mutations disrupting direct binding between KIF21A and KANK1 or binding between KANK1 and *** down KIF21A in the hippocampus of rats inhibited the amplitudes of long-term potentiation induced by high-frequency stimulation and negatively impacted the animals’cognitive *** together,our findings demonstrate the function of KIF21A in modulating spine morphology and provide insight into its role in synaptic function.

关键词： actin cytoskeleton dendrite KANK1 KIF21A microtubule spine morphology spine synaptic plasticity talin1

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Influence of introducing Zr,Ti,Nb and Ce elements on externally solidified crystals and mechanical properties of high-pressure die-casting Al–Si alloy

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 147-153页

作者： Junjie Li Wenbo Yu Zhenyu sun Weichen Zheng Liangwei Zhang Yanling xue Wenning Liu Shoumei Xiong Center of Materials Science and Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Traffic&Transportation Engineering Central South UniversityChangsha 410075China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

High pressure die casting(HPDC)AlSi10Mn Mg alloy castings are widely used in the automobile *** can optimize the mechanical properties of castings through heat treatment,while the release of thermal stress arouses the deformation of large integrated ***,the development of non-heat treatment Al alloys is becoming the hot *** addition,HPDC contains externally solidified crystals(ESCs),which are detrimental to the mechanical properties of *** achieve high strength and toughness of non-heat treatment die-casting Al-Si alloy,we used AlSi9Mn alloy as matrix with the introduction of Zr,Ti,Nb,and *** influences on ESCs and mechanical properties were systematically investigated through three-dimensional reconstruction and thermodynamic *** results reveal that the addition of Ti increased ESCs'size and porosity,while the introduction of Nb refined ESCs and decreased ***,large-sized Al_3(Zr,Ti)phases formed and degraded the mechanical *** introduction of Ce resulted in the poisoning effect and reduced mechanical properties.

关键词： aluminium alloy high-pressure die-casting externally solidified crystals non-heat treatment

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儿童急性髓细胞白血病WT1基因表达及其临床意义

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中国当代儿科杂志 2016年第12期18卷 1211-1216页

作者：唐雪郭霞杨雪肖慧孙静静袁粒星高举四川大学华西第二医院儿科/儿童血液肿瘤科/出生缺陷与相关妇儿疾病教育部重点实验室四川成都610041

目的研究急性髓细胞白血病（AML）患儿WT1基因表达情况及其与临床预后的关系。方法采用实时荧光定量PCR方法检测45例非M3儿童AML的WT1表达水平,并回顾性分析其与AML预后的关系。结果骨髓幼稚细胞比例〉60%的AML患儿WT1表达水平高于幼稚... 详细信息

目的研究急性髓细胞白血病（AML）患儿WT1基因表达情况及其与临床预后的关系。方法采用实时荧光定量PCR方法检测45例非M3儿童AML的WT1表达水平,并回顾性分析其与AML预后的关系。结果骨髓幼稚细胞比例〉60%的AML患儿WT1表达水平高于幼稚细胞≤60%的患儿（P〈0.05）。M2病例组初诊时WT1表达量低于非M2病例组（P〈0.05）。完全缓解组患儿的WT1表达量显著低于初诊组和复发组（P〈0.01）。诱导化疗结束时WT1高表达组的2年无病生存率（DFS）低于WT1低表达组（P〈0.05）。诱导化疗结束时WT1下降程度≥1个数量级病例组的2年总生存率（OS）和DFS高于WT1下降程度〈1个数量级病例组（P〈0.05）。AML患儿骨髓复发2~3个月前WT1表达呈上升趋势。结论 WT1表达水平与儿童AML预后密切相关,动态监测WT1表达在指导儿童AML个体化治疗、预后评估和复发预测方面具有重要临床应用价值。

关键词：急性髓细胞白血病 WT1基因预后实时荧光定量PCR 儿童

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Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo hui Bojing sun Dongfang Hou Meidi Wang xueqian Wu Tao Wu Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

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Isolation of CHH family peptides and molecular cloning of full length cDNA encoding MIH of the crab,Eriocheir sinensis

Isolation of CHH family peptides and molecular cloning of fu...

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2005水产科技论坛

作者： WANG Yu-fan WANG xue-hui sun Jin-sheng ( College of Chemistry and Life Science, Tianjin Normal University, Tianjin 300074, China Tianjin Fishery Institute, Tianjin 300221, China)

＜正＞X-Organ-Sinus gland is important crustacean neuroendocrine organ. Some neuropeptides, include CHH family hormone, were secreted in the organ involving in Molting and reproduction etc. In this paper, several neuropeptides were separated and purified from the eyestalks of the crab Eriocheir sinensis by RP-HPLC. And then the biological activity of CHH-like peptide and putative MIH were identified. For gene amplification, amino acid sequences of 2 fragments of CHH and N-terminal of MIH were examined. Primers were designed depended on those Aa sequences. The mRNAs encoding MIH of the crab, Eriocheir sinensis were cloned by RP-PCR and RACE. Then those PCR productions were sequenced and analyzed. The results suggest: （1） . CHH is expressed in maximum abundant among all neuropeptides in the eyestalk, which accounts for 153. 63±32. 23 ng （n =4） per SG （the extract of one SG reaches 1 252. 63 ± 298. 40 ng）. （2） . CHH shows obviously hyperglycemic activity, which can make the haemolymph of the crab reach the highest level [ 56. 14 ± 10. 58 mg. 100 （mL）-1 ] only in 30 minutes. MIH shows molt inhibiting activity relatively. （3） . The full length cDNA of Erio-MIH is 1 462 bp （complete CDS） encoding 112 Aa （contains signal peptide and mature peptide）. （4） . The Aa sequences show high homology to other hormones isolated from decapodas. Phylogenetic analysis shows that the homology of Aa sequence is 72. 47%. Especially six conserved cys-residues locating at unique positions are very clearly.

关键词： Eriocheir sinensis eyestalk neuropeptide isolation clone

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Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan Ma Jingwen sun Liang xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

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Characteristics of SEN clogging and adhesive behavior of oxide inclusion during continuous casting of Ti-stabilized ultra-pure ferritic stainless steels

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Journal of Iron and Steel Research International 2023年第10期30卷 1939-1951页

作者： xue-feng Bai Yan-hui sun hui-bin Wu Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing100083China

Submerged entry nozzle(SEN)clogging during continuous casting of Ti-stabilized ultra-pure ferritic stainless(Ti-UPFS)steels was systematically investigated via cross-sectional analysis and acid dissolution *** SEN deposit profile was characterized as occurring in three major layers:(1)an eroded refractory layer;(2)an initial adhesive layer comprised an Al_(2)O_(3)-ZrO_(2) composite sub-layer and a dense Al_(2)O_(3)-based deposit sub-layer;and(3)a porous multiphase deposit layer mainly consisting of MgO·Al_(2)O_(3),CaO-Al_(2)O_(3),and *** MgO·Al_(2)O_(3)-rich inclusions did not adhere directly to the eroded refractory but were entrapped during the deposit *** of inclusion characterization in the tundish revealed that the MgO·Al2O3-rich particles present in the tundish served as the primary source of clogging ***,a novel cavity-induced adhesion model by circular approximation was established to explain the effects of complex inclusion characteristics and refractory material type on adhesion force.A high number of small MgO·Al_(2)O_(3) inclusions were expected to accelerate the buildup of clogging *** the modification of MgO·Al_(2)O_(3)-rich inclusions in the size range of 2-4μm by Ca treatment was crucial to minimizing the risk of SEN clogging during the continuous casting of Ti-UPFS steels.

关键词： Ti-stabilized ultra-pure ferritic stainless steel Submerged entry nozzle clogging MgO·Al_(2)O_(3)-rich inclusion Adhesion Continuous casting

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葡萄糖异构酶在不同温度下的圆二色谱

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吉林大学自然科学学报 1987年第3期 107-109页

作者：周慧薛艳芬孙彤黄程芳吉林大学分子生物学系

我们通过测定葡萄糖异构酶的CD光谱了解其结构与温度的关系。该酶催化葡萄糖转化为果糖,果糖的甜度高于葡萄糖和蔗糖,是优良的蔗糖代用品。该酶的研究引起了世界各国科学家的广泛注意。美、日、苏及丹麦等国做了多方面的研究并取得了突... 详细信息

我们通过测定葡萄糖异构酶的CD光谱了解其结构与温度的关系。该酶催化葡萄糖转化为果糖,果糖的甜度高于葡萄糖和蔗糖,是优良的蔗糖代用品。该酶的研究引起了世界各国科学家的广泛注意。美、日、苏及丹麦等国做了多方面的研究并取得了突破性的成绩。目前国外已大规模地使用葡萄糖异构酶生产果糖。但对其作用方式、结

关键词：葡萄糖异构酶不同温度果糖构象己糖圆二色谱

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PIM-Align: A Processing-in-Memory Architecture for FM-IndexSearch Algorithm

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Journal of Computer Science & Technology 2021年第1期36卷 56-70页

作者： xue-Qi Li Guang-Ming Tan Ning-hui sun University of Chinese Academy of Sciences Beijing 100049China

Genomic sequence alignment is the most critical and time-consuming step in genomic *** algorithms generally follow a seed-and-extend *** of the extension phase for sequence alignment has been well explored in computing-centric architectures on field-programmable gate array(FPGA),application-specific integrated circuit(ASIC),and graphics processing unit(GPU)(e.g.,the Smith-Waterman algorithm).Compared with the extension phase,the seeding phase is more critical and ***,the seeding phase is bounded by memory,i.e.,fine-grained random memory access and limited parallelism on conventional *** this paper,we argue that the processing-in-memory(PIM)concept could be a viable solution to address these *** paper describes\PIM-Align"|an application-driven near-data processing architecture for sequence *** order to achieve memory-capacity proportional performance by taking advantage of 3D-stacked dynamic random access memory(DRAM)technology,we propose a lightweight message mechanism between different memory partitions,and a specialized hardware prefetcher for memory access patterns of sequence *** evaluation shows that the proposed architecture can achieve 20x and 1820x speedup when compared with the best available ASIC implementation and the software running on 32-thread CPU,respectively.

关键词： accelerator design genomic sequence alignment near-memory computing

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