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Density Functional Theory Study of Selectivity of Crown Ethers to Li^+ in Spent Lithium-Ion Batteries Leaching Solutions

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Chinese Journal of Chemical Physics 2019年第3期32卷 343-348,I0002页

作者： Yong-lin Yao Mei-ying Zhu Zhuo Zhao Wen-gang Liu bi-hai tong Ming-yang Li School of Metallurgical Engineering Anhui University of TechnologyMaanshan 243002China School of Resources and Civil Engineering Northeastern UniversityShenyang 110819China Key Laboratory of Metallurgical Emission Reduction & Resources Recycling Anhui University of TechnologyMaanshan 243002China

It is a challenge to recover lithium from the leaching solution of spent lithium-ion batteries,and crown ethers are potential extractants due to their selectivity to alkali metal *** theoretical calculations for the selectivity of crown ethers with different structures to Li ions in aqueous solutions were carried out based on the density functional *** calculated results of geometries,binding energies,and thermodynamic parameters show that 15C5 has the strongest selectivity to Li ions in the three crown ethers of 12C4,15C5,and 18C6.B15C5 has a smaller binding energy but more negative free energy than 15C5 when combined with Li^+,leading to that the lithium ions in aqueous solutions will combine with B15C5 rather than *** exchange reactions between B15C5 and hydrated Li^+,Co^2+,and Ni^2+were analyzed and the results show that B15C5 is more likely to capture Li^+from the hydrated ions in an aqueous solution containing Li^+,Co^2+,and Ni^2+.This study indicates that it is feasible to extract Li ions selectively using B15C5 as an extractant from the leaching solution of spent lithium-ion batteries.

关键词： Density functional theory Crown ether Geometry binding energy Thermodynamic parameter

Transarterial chemoembolization combined with lenvatinib and sintilimab vs lenvatinib alone in intermediate-advanced hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 52-61页

作者： Fei-Da Wu hai-Feng Zhou Wei Yang Di Zhu bi-Fei Wu hai-bin Shi Sheng Liu Wei-Zhong Zhou Department of Interventional Radiology The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina

BACKGROUND Hepatocellular carcinoma(HCC)is the most common form of liver cancer that has limited treatment options and a poor *** chemoembolization(TACE)is the first-line treatment for intermediate-stage HCC but can induce tumour hypoxia,thereby promoting *** studies suggested that combining TACE with anti-angiogenic therapies and immunotherapy might im-prove ***,a tyrosine kinase inhibitor,has demonstrated superior outcomes compared to sorafenib,while immune checkpoint inhibitors such as sintilimab show potential when combined with ***,the efficacy and safety of TACE combined with lenvatinib and sintilimab(TACE+SL)compared to TACE with lenvatinib alone(TACE+L)in patients with intermediate-ad-vanced HCC has not yet been *** To evaluate the efficacy and safety of TACE+SL therapy in comparison to TACE+L therapy in patients with intermediate-advanced *** A retrospective analysis was performed on patients with intermediate-advanced HCC who received TACE plus lenvatinib with or without sintilimab between September 2019 and September *** characteristics were compared,and propensity score matching was *** survival(OS),progression-free survival(PFS),and objective response rate(ORR)were evaluated between the two groups,and adverse events were *** The study included 57 patients,with 30 in the TACE+SL group and 27 in the TACE+L *** TACE+SL group demonstrated significantly improved median PFS and OS compared to the TACE+L group(PFS:14.1 months vs 9.6 months,P=0.016;OS:22.4 months vs 14.1 months,P=0.039),along with a higher ORR(70.0%vs 55.6%).After propensity score matching,30 patients were included,with the TACE+SL group again showing longer median PFS and a trend toward improved OS(PFS:14.6 months vs 9.2 months,P=0.012;OS:23.9 months vs 16.3 months,P=0.063),and a higher ORR(73.3%vs 53.3%).No severe adverse events were *** TACE+SL demonstrat

关键词： Hepatocellular carcinoma Transarterial chemoembolization Sintilimab Lenvatinib Immunotherapy Programmed cell death 1 Prognosis

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一类非线性反应扩散方程的配置方法

山东大学学报（理学版） 2004年第2期39卷 41-46,55页

作者：闭海鲁统超山东大学数学与系统科学学院山东济南250100

对一类非线性反应扩散方程给出一种有限差分方法和配置法相结合的数值求解方法 .对建立的配置求解格式 ,不但证明了数值解的存在唯一性 ,并给出完整的数值分析 ,得到了最优的先验误差估计 .

关键词：反应扩散方程非线性配置法误差估计

AlLi-LDH中Al-O八面体环吸附锂的机制

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Transactions of Nonferrous Metals Society of China 2024年第4期34卷 1321-1332页

作者：田勇攀王成成张帆徐亮赵卓童碧海安徽工业大学冶金工程学院马鞍山243032

采用共沉淀法合成铝锂层状双氢氧化物(AlLi-LDH)并进行提锂试验。AlLi-LDH的空间群为P32或C2/m,微观形貌呈直径为5~10μm的规则球形。AlLi-LDH吸附Li^(+)后,空间群转化为P32。当Li^(+)浓度为95.4 mg/L时,1 h后锂吸附量为8.98 mg/g;吸附4... 详细信息

采用共沉淀法合成铝锂层状双氢氧化物(AlLi-LDH)并进行提锂试验。AlLi-LDH的空间群为P32或C2/m,微观形貌呈直径为5~10μm的规则球形。AlLi-LDH吸附Li^(+)后,空间群转化为P32。当Li^(+)浓度为95.4 mg/L时,1 h后锂吸附量为8.98 mg/g;吸附48 h后,吸附量增加到16.50 mg/g;根据二级吸附模型预测Li^(+)吸附总量为17.57 mg/g。当Mg^(2+)/Li^(+)的质量比为1067时,Mg^(2+)/Li^(+)分离系数为29536。空间群为P32时,Li-O的相互作用强度变弱,且相互作用属于静电效应。具有P32空间基团的AlLi-LDH更容易吸附和解吸Li^(+)。

关键词：共沉淀铝锂层状双氢氧化物空间群吸附锂

Small extracellular vesicles derived from human induced pluripotent stem cell-differentiated neural progenitor cells mitigate retinal ganglion cell degeneration in a mouse model of optic nerve injury

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Neural Regeneration Research 2025年第2期20卷 587-597页

作者： tong Li Hui-Min Xing hai-Dong Qian Qiao Gao Sheng-Lan Xu Hua Ma Zai-Long Chi State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina

Several studies have found that transplantation of neural progenitor cells(NPCs)promotes the survival of injured ***,a poor integration rate and high risk of tumorigenicity after cell transplantation limits their clinical *** extracellular vesicles(sEVs)contain bioactive molecules for neuronal protection and *** studies have shown that stem/progenitor cell-derived sEVs can promote neuronal survival and recovery of neurological function in neurodegenerative eye diseases and other eye *** this study,we intravitreally transplanted sEVs derived from human induced pluripotent stem cells(hiPSCs)and hiPSCs-differentiated NPCs(hiPSC-NPC)in a mouse model of optic nerve *** results show that these intravitreally injected sEVs were ingested by retinal cells,especially those localized in the ganglion cell *** with hiPSC-NPC-derived sEVs mitigated optic nerve crush-induced retinal ganglion cell degeneration,and regulated the retinal microenvironment by inhibiting excessive activation of *** analysis further revealed that hiPSC-NPC derived sEVs transported neuroprotective and anti-inflammatory miRNA cargos to target cells,which had protective effects on RGCs after optic nerve *** findings suggest that sEVs derived from hiPSC-NPC are a promising cell-free therapeutic strategy for optic neuropathy.

关键词： exosome miRNA neural progenitor cell neurodegeneration neuroinflammation neuroprotection optic nerve crush optic neuropathy retinal ganglion cell small extracellular vesicles

An intelligent SVM modeling process for crude oil properties prediction based on a hybrid GA-PSO method

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Chinese Journal of Chemical Engineering 2019年第8期27卷 1888-1894页

作者： Kexin bi tong Qiu Department of Chemical Engineering Tsinghua UniversityBeijing 100084China Beijing Key Laboratory of Industrial big Data System and Application Beijing 100084China

Properties prediction of crude oil remains an essential issue for refineries. In this communication, an exhaustive and extendable support vector machine(SVM) intelligent prediction process has been proposed to solve this problem. A novel hybrid genetic algorithm-particle swarm optimization(GA-PSO)method was applied to optimize the SVM model. The optimization process and result demonstrated that the newly proposed GA-PSO-SVM method was more accurate and time-saving than the classical GA or PSO method. Compared with the classical Grid-search SVM, the combined GA-PSO-SVM model appeared to be more applicable for the properties prediction task. The TBP distillation curve fitting was exampled to evaluate the performance of the developed model. The regression result demonstrated the high accuracy and efficiency of the proposed process. The model can be applied in the Industrial Internet as a plugin, and the adaptability and flexibility is demonstrated by the implement of crude oil molecular reconstruction employing the intelligent prediction process.

关键词： Intelligent properties prediction Support vector machine Hybrid GA-PSO TBP distillation curve fitting

Fluorescence microscope light source based on integrated LED

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Light(Science & Applications) 2023年第10期12卷 1990-1991页

作者： Jianchen Zi hai bi Jihua Laboratory No.28 Huandao South RoadNanhai district528200FoshanChina

An LED-integrated excitation cube(LEC)was designed to address the limitations of conventional fluorescence *** LEC has a decentralized structure,high optical power density,and efficient *** optical efficiency of LECs is 1–2 orders of magnitude higher than that of mercury lamps,enabling high-quality fluorescence imaging with spectral coverage from UV to *** can be easily installed on commercial fluorescence microscopes by replacing conventional fluorescence filter cubes,and a built-in LEC driver can identify the types of LEDs in different spectral bands to adopt optimal operating conditions.

关键词： Fluorescence illumination mercury

Data-driven intelligent modeling framework for the steam cracking process

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Chinese Journal of Chemical Engineering 2023年第9期61卷 237-247页

作者： Qiming Zhao Kexin bi tong Qiu Department of Chemical Engineering Tsinghua UniversityBeijing 100084China Beijing Key Laboratory of Industrial big Data Systems and Applications Tsinghua UniversityBeijing 100084China School of Chemical Engineering Sichuan UniversitySichuan 610065China Department of bioprocess Engineering Institute of BiotechnologyTechnische Universität BerlinBerlin 10623Germany

Steam cracking is the dominant technology for producing light olefins,which are believed to be the foundation of the chemical *** models of the cracking process can boost production efficiency and profit *** advancements in machine learning research have recently enabled data-driven solutions to usher in a new era of process ***,its practical application to steam cracking is still hindered by the trade-off between prediction accuracy and computational *** research presents a framework for data-driven intelligent modeling of the steam cracking *** data preparation and feature engineering techniques provide computational-ready datasets for the framework,and feedstock similarities are exploited using k-means *** propose LArge-Residuals-Deletion Multivariate Adaptive Regression Spline(LARD-MARS),a modeling approach that explicitly generates output formulas and eliminates potentially outlying *** framework is validated further by the presentation of clustering results,the explanation of variable importance,and the testing and comparison of model performance.

关键词： Mathematical modeling Data-driven modeling Process systems Steam cracking Clustering Multivariate adaptive regression spline

Combined treatment with dihydrotestosterone and lipopolysaccharide modulates prostate homeostasis by upregulating TNF-α from M1 macrophages and promotes proliferation of prostate stromal cells

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Asian Journal of Andrology 2022年第5期24卷 513-520页

作者： Yu tong Yi-Jun Guo Qin Zhang hai-Xia bi Kai Kai Ren-Yuan Zhou Department of Urology Jing’an District Central HospitalFudan UniversityShanghai 200040China Department of Pathology Jing’an District Central HospitalFudan UniversityShanghai 200040China

Androgens and chronic inflammation,which play essential roles in the development of benign prostatic hyperplasia(BPH),are considered to be important factors in disorders of prostate *** two factors may lead to pathological hyperplasia in the prostate transition zone of patients with ***,few studies have examined the mechanism of how dihydrotestosterone(DHT)affects chronic inflammation in prostate tissue during the progression of *** study examined the performance of DHT in lipopolysaccharide-treated M1 macrophages and the subsequent effects on the proliferation of prostate stromal and epithelial *** found that DHT increased secretion of the pro-inflammatory factor tumor necrosis factor(TNF)-αfrom M1 macrophages differentiated from THP-1 *** supernatant of M1 macrophages promoted the proliferation of WPMY-1 prostate stromal cells by upregulating B-cell lymphoma-extra large(Bcl-xL)and cellular Myc(c-Myc)levels by activating TNF-α-mediated nuclear factor-kappa B(NF-κB)and mitogen-activated protein kinase(MAPK)***,this supernatant increased the expression of androgen receptor in WPMY-1 cells,which was TNF-α-***,TNF-αprotein expression was significantly higher in patients with BPH and a large prostate volume than that in those with a small prostate *** analysis showed that higher serum testosterone combined with prostate-specific androgen concentrations was related to TNF-α*** study suggests that DHT modulates the inflammatory environment of BPH by increasing TNF-αexpression from lipopolysaccharide-treated M1 macrophages and promotes the proliferation of prostate stromal *** TNF-α,but not DHT,may be a promising strategy for patients with BPH.

关键词： benign prostatic hyperplasia dihydrotestosterone inflammation macrophage tumor necrosis factor-alpha