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Engineering FeOOH/Ni(OH)_(2) heterostructures on Ni_(3)S_(2)surface to enhance seawater splitting

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Rare Metals 2024年第5期43卷 1989-1998页

作者： Chen yang Ya-Dong li li-Juan Cao Xi-Long Wang Han-Pu liang Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Sino-Danish College University of Chinese Academy of SciencesBeijing 100049China

The construction of highly stable and efficient electrocatalysts is desirable for seawater splitting but remains challenging due to the high concentration of Cl-in ***,FeOOH/Ni(OH)_(2)heterostructure supported on Ni_(3)S_(2)-covered nickel foam(Fe–Ni/Ni_(3)S_(2)/NF)was fabricated by hydrothermal and etching methods,as well as anodic oxidation *** electronic structure of FeOOH and Ni(OH)_(2)could be modulated after depositing FeOOH nanoparticles on Ni(OH)_(2)nanosheet,which greatly boosted the catalytic *** the catalyst used as an electrode for oxygen evolution reaction(OER),it needed low overpotentials of 266 and 368 m V to achieve current densities of 100 and 800 m A·cm^(-2),respectively,in 1 mol·L^(-1)KOH+seawater *** can operate continuously at 100 m A·cm^(-2)for 400 h without obvious ***,in situ generated SO_(4)^(2-)from inner Ni_(3)S_(2)during electrolysis process would accumulate on the surface of active sites to form passivation layers to repel Cl^(-),which seemed to be responsible for superior *** study not only synthesizes an OER catalyst for highly selective and stable seawater splitting,but also gives a novel approach for industrial hydrogen production.

关键词： Anodic oxidation Heterostructure Oxygen evolution reaction Seawater splitting

Colon signet-ring cell carcinoma with chylous ascites caused by immunosuppressants following liver transplantation:A case report

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2343-2350页

作者： Ying li yang Tai Hao Wu Department of Gastroenterology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROunD Chylous ascites is caused by disruption of the lymphatic system,which is characterized by the accumulation of a turbid fluid containing high levels of triglycerides within the abdominal *** two most common causes are cirrhosis and tuberculosis,and colon signer ring cell carcinoma(SRCC)due to the use of immunosuppressants is extremely rare in cirrhotic patients after liver transplantation,making it prone to misdiagnosis and missed *** SUMMARY A 52-year-old man who underwent liver transplantation and was administered with immunosuppressants for 8 months was admitted with a 3-month history of progressive abdominal ***,based on lymphoscintigraphy and lymphangiography,lymphatic obstruction was considered,and cystellar chyli decompression with band lysis and external membrane stripping of the lymphatic duct was ***,his abdominal distention was persistent without *** paracentesis revealed allogenic cells in the ascites,and immunohistochemistry analysis revealed adenocarcinoma cells with phenotypic features suggestive of a gastrointestinal *** endoscopy was performed,and biopsy showed atypical signet ring cells in the ileocecal *** patient eventually died after a three-month follow-up due to progression of the *** Colon SRCC,caused by immunosuppressants,is an unusual but un-neglected cause of chylous ascites.

关键词： Colonic signer ring cell carcinoma Immunosuppressant Chylous ascites Cirrhosis liver transplantation Case report

Water-soluble organic matter with various polarities in PM_(2.5) over Xi'an,China:Abundance,functional groups,and light absorption

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Particuology 2024年第1期84卷 281-289页

作者： Xueting yang Shasha Huang Dan li Hongmei Xu Yaling Zeng liu yang Diwei Wang Ningning Zhang Junji Cao Zhenxing Shen Department of Environmental Science and Engineering Xi'an Jiaotong UniversityXi'an710049China School of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen518055China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an710049China

Humic-like substances(HUliS)are a major component of brown carbon and consequently play a major role in climate *** this study,70 PM_(2.5) samples were collected from Xi'an in winter 2019 and summer *** HUliS(HUliS-n),acidic HUliS(HUliS-a),and high-polarity water-soluble organic compounds(HP-WSOC)were analyzed to determine their carbon concentrations and measure their ultraviolet-visible absorption and infrared *** the three components,HUliS-n had the highest carbon content in both winter(3.29±1.45μg m^(-3))and in summer(1.38±1.10μg m^(-3)).The semi-quantitative results for the functional groups revealed that HP-WSOC was rich in carboxylic acids and had high aromaticity in winter,whereas HUliS-n was rich in carboxylic acids in ***,HULJS-a was richer in nitrate esters and saturated aliphatic hydrocarbons in summer than in *** results for specific ultraviolet absorbance(SUVA)and E_(250)/E_(365) revealed that HUliS had higher molecular weight and aromaticity in winter than in ***-n dominated in the total light absorption of HUliS+HP-WSOC in both winter(73.08%)and summer(48.57%).Overall,the results on the carbon content,optical properties,and functional groups of WSOCs with differing polarity can improve un-derstanding of environmental and climatic effects.

关键词： Humic-like substances(HUliS) Aromaticity Fourier-transform infrared(FTIR) spectroscopy light absorbance

High-efficiency preparation of multifunctional conjugated electrospun graphene doped PVDF/CF yarns for energy harvesting and human movement monitoring in TENG textile

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Nano Research 2024年第5期17卷 4478-4488页

作者： Ting yang Chengwei Wan Xiaoyu Zhang Tong liu li Niu Jian Fang Yuqing liu College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123China

Portable power is an effective solution to realize self-powered sensors for wearable devices,promoting future sustainable ***-based triboelectric nanogenerators(M-TENGs)have emerged as a promising technology for harvesting biomechanical energy from human motion owing to their advantages,such as simple structure,lightweight design,and efficient energy ***,the poor durability,low adaptability,and un-washability of two-dimensional membrane materials have largely hindered their application in wearable *** this study,we propose a sheath-core polyvinylidene fluoride(PVDF)/graphene(G)-carbon fiber(CF)yarn fabricated via conjugate electrospinning,comprising a commercial CF core and an electrospun graphene-doped PVDF sheath,which improves the fatigue resistance of electrospun nanofiber films under prolonged friction and keeps a high degree of *** resulting electronic textile,woven with the large-scale electrospun PVDF/G-CF yarn,demonstrates a remarkable power density of 25.5 mW·m^(-2).The tight distribution of PVDF/G nanofibers on the textile surface ensures excellent softness,washability,and ***,the electrospun PVDF/G-CF textile exhibits significant potential in pressure sensing,self-powered operation,and motion detection,making it highly suitable for wearable electronics applications.

关键词： yarn-based triboelectric nanogenerator(TENG) graphene polyvinylidene fluoride(PVDF) conjugated-electrospinning multifunctional

Constrained re-calibration of two-equation Reynolds-averaged Navier–Stokes models

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Theoretical & Applied Mechanics Letters 2024年第2期14卷 82-89页

作者： Yuanwei Bin Xiaohan Hu Jiaqi li Samuel J.Grauer Xiang I.A.yang Department of Mechanical Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing 100871China College of Engineering Peking UniversityBeijing 100871China

Machine-learned augmentations to turbulence models can be advantageous for flows within the training dataset but can often cause harm *** lack of generalizability arises because the constants(as well as the functions)in a Reynolds-averaged Navier–Stokes(RANS)model are coupled,and un-constrained re-calibration of these constants(and functions)can disrupt the calibrations of the baseline model,the preservation of which is critical to the model's *** safeguard the behaviors of the baseline model beyond the training dataset,machine learning must be constrained such that basic calibrations like the law of the wall are kept *** letter aims to identify such constraints in two-equation RANS models so that future machine learning work can be performed without violating these *** demonstrate that the identified constraints are not ***,they help preserve the generalizability of the baseline model.

关键词： Machine learning Turbulence modeling Reynolds-averaged Navier-Stokes

Elaborately engineering of lipid nanoparticle for targeting delivery of siRNA and suppressing acute liver injury

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Chinese Chemical Letters 2024年第2期35卷 323-328页

作者： Qiu Wang Qikun Jiang Dan li Zimeng yang lin Gao Fan liu Chang li Yao Feng Zhonggui He Cong Luo Jin Sun Department of Pharmaceutics Wuya College of InnovationShenyang Pharmaceutical UniversityShenyang 110016China Kangya of Ningxia Pharmaceutical Co.Ltd. Yinchuan 750000China

Small interfering RNA(siRNA)-based gene silencing has been considered as a potential therapy modality against inflammatory ***,the effective delivery of siRNA to desired destination still remains challenging due to poor stability,high molecular weight and negative ***,ionizable lipid nanoparticle(LNP)has been extensively used as vector for effective delivery of ***,we report a mannose-modified LNP(M-MC_(3) LNP@TNFα)loading tumor necrosis factorα(TNFα)siRNA for targeting liver macrophages,achieving effectively inhibit acute liver *** M-MC_(3) LNP@TNFαnot only increases the internalization of LNP by macrophages,but also enhances the gene silencing efficiency of TNFαin ***,the M-MC_(3) LNP@TNFαexhibits higher accumulation in liver of healthy mice than that of MC_(3) LNP@TNFα(un-modified LNP)owing to the targeting effect of *** expected,the M-MC_(3) LNP@TNFαsignificantly suppresses the expression of TNFαand ameliorates liver damage in acute liver injury *** a LNP targeting siRNA delivery holds great potential for the treatment of diseases associated with liver in the future.

关键词： lipid nanoparticle Targeting siRNA delivery Acute liver injury Gene silencing Tumor necrosis factorα

Correlation between postoperative chemotherapy regimen and survival in patients with resectable gastric adenocarcinoma accompanied with vascular cancer thrombus

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1618-1628页

作者： Ze-Feng yang Zhuan-Xia Dong Chen-Jie Dai li-Zheng Fu Hong-Mei Yu Yu-Sheng Wang Department of Health Statistics School of Public HealthShanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Shanxi Medical university Taiyuan 030001Shanxi ProvinceChina Shanxi Provincial Key Laboratory of Major Diseases Risk Assessment Taiyuan 030001Shanxi ProvinceChina MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Oncology Digestive The First Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Digestive Oncology Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer HospitalChinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

BACKGROunD Patients with resectable gastric adenocarcinoma accompanied by vascular cancer thrombus(RGAVCT)have a poor prognosis,with a 5-year survival rate ranging from 18.42%-53.57%.These patients need a reasonable postoperative treatment plan to improve their *** To determine the most effective postoperative chemotherapy regimen for patients with *** We retrospectively collected the clinicopathological data of 530 patients who un-derwent radical resection for gastric cancer between January 2017 and January 2022 and who were pathologically diagnosed with gastric adenocarcinoma with a choroidal cancer ***-thermore,we identified the high-risk variables that can influence the prognosis of patients with RGAVCT by asse-ssing the clinical and pathological features of the patients who met the inclusion *** also assessed the significance of survival outcomes using Mantel-Cox univariate and multivariate *** subgroups of pa-tients with stages Ⅰ,Ⅱ,and Ⅲ disease who received single-,dual-,or triple-drug regimens following surgery were analyzed using SPSS 25.0 and the ggplot2 package in R *** In all,530 eligible individuals with RGAVCT were enrolled in this *** median overall survival(OS)of patients with RGAVCT was 24 months,and the survival rates were 80.2%,62.5%,and 42.3%at 12,24,and 59 months,*** complications,tumor size,T stage,and postoperative chemotherapy were identified as independent factors that influenced OS in patients with RGAVCT according to the Cox multivariate analysis model.A Kaplan-Meier analysis revealed that chemotherapy had no effect on OS of patients with stage Ⅰ or Ⅱ RGAVCT;however,chemotherapy did have an effect on OS of stage Ⅲ *** Ⅲ patients who were treated with chemotherapy consisting of dual-or triple-agent regimens had better survival than those treated with single-agent regimens,and no significant difference was observed in the survival of patients treat

关键词： Vascular cancer embolism Postoperative chemotherapy regimen Gastric adenocarcinoma Risk factors Survival

考虑间隙水体阻尼修正的过驳双船系统动力响应研究

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船舶力学 2024年第6期28卷 856-865页

作者：刘利琴刘依伦王岭郭颖孟春蕾天津大学水利工程仿真与安全国家重点实验室天津300072 天津航海仪器研究所天津300131

利用阻尼修正的势流理论对过驳双船系统进行研究。建立了过驳双船系统CFD数值计算模型,通过在双船间隙自由水面施加粘性阻尼盖的方法对势流理论进行修正。对双船过驳系统在考虑与不考虑修正两种情况下的时域结果进行对比分析,结果表明:... 详细信息

利用阻尼修正的势流理论对过驳双船系统进行研究。建立了过驳双船系统CFD数值计算模型,通过在双船间隙自由水面施加粘性阻尼盖的方法对势流理论进行修正。对双船过驳系统在考虑与不考虑修正两种情况下的时域结果进行对比分析,结果表明:双船各自由度的运动响应以及各系缆护舷的受力,在不计及粘性修正时的计算结果皆高于修正后的结果,因而考虑流体粘性的修正是非常必要的。

关键词：过驳系统粘性修正时域分析势流理论

CO_(2) hydrogenation to methanol over the copper promoted In_(2)O_(3) catalyst

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Journal of Energy Chemistry 2024年第6期93卷 135-145,I0004页

作者： Rui Zou Chenyang Shen Kaihang Sun Xinbin Ma Zhuoshi li Maoshuai li Chang-Jun liu School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Collaborative Innovation Center of Chemical Science&Engineering Tianjin UniversityTianjin 300072China

The metal promoted In_(2)O_(3) catalysts for CO_(2) hydrogenation to methanol have attracted wide attention because of their high activity with high methanol ***,there was still no experimental confirmation if copper could be a good promoter for In_(2)O_(3).Herein,the Cu promoted In_(2)O_(3) catalyst was prepared using a deposition-precipitation *** prepared Cu/In_(2)O_(3) catalyst shows significantly higher CO_(2) conversion and space time yield(STY)of methanol,compared to the un-promoted In_(2)O_(3) *** loading of Cu facilitates the activation of both H_(2) and CO_(2) with the interface between the Cu cluster and defective In_(2)O_(3) as the active *** Cu/In_(2)O_(3) catalyst takes the CO hydrogenation pathway for methanol synthesis from CO_(2) *** exhibits a unique size effect on the CO *** temperatures below 250℃,CO adsorption on Cu/In_(2)O_(3) is stronger than that on In_(2)O_(3),causing higher methanol *** increasing temperatu res,the Cu catalyst aggregates,which leads to the formation of weak CO adsorption site and causes a decrease in the methanol *** with other metal promoted In_(2)O_(3) catalysts,it can be concluded that the catalyst with stronger CO adsorption possesses higher methanol selectivity.

关键词： CO_(2)hydrogenation Methanol Cu In_(2)O_(3) CO Selectivity DFT