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数字经济赋能传统制造业供应链韧性研究

对外经贸 2024年第2期 33-36页

作者：简冠群苗雨欣甘肃政法大学经济学院甘肃兰州730070

当今世界正处于百年未有之大变局,全球经济环境深刻变化,传统制造业关键技术环节、数字化转型方面在一定程度上制约着供应链韧性的发展。提升供应链韧性和安全水平是新发展格局下增强制造业产业竞争力的重要途径,是实现我国经济高质量... 详细信息

当今世界正处于百年未有之大变局,全球经济环境深刻变化,传统制造业关键技术环节、数字化转型方面在一定程度上制约着供应链韧性的发展。提升供应链韧性和安全水平是新发展格局下增强制造业产业竞争力的重要途径,是实现我国经济高质量发展的必然选择,对于加快建设现代化经济体系具有重要意义。数字经济应用数字技术,不断打破传统的制造流程,为我国制造业供应链发展注入了新的活力。应提升自主创新能力,助推供应链数字化转型升级,充分释放数字经济红利,推动供应链朝着更加稳定、完整、强大的方向发展,早日实现供应链自主安全可控。

关键词：数字经济数字技术供应链韧性

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电去离子法(EDI)处理含Cr(Ⅵ)废水

化工环保 2024年第1期44卷 68-72页

作者：邓恩鹏王译旋田鹏苗雨欣康艳红沈阳师范大学化学化工学院辽宁沈阳110034

采用电去离子法(EDI)处理模拟含Cr(Ⅵ)废水,考察了电压、pH、电解时间和Cu2+等因素对Cr(Ⅵ)去除率和阴离子交换膜性能的影响。实验结果表明:随着电压的增加,阴离子交换膜对Cr(Ⅵ)的透过率逐渐增大,Cr(Ⅵ)去除率逐渐升高;随着电压的增加... 详细信息

采用电去离子法(EDI)处理模拟含Cr(Ⅵ)废水,考察了电压、pH、电解时间和Cu2+等因素对Cr(Ⅵ)去除率和阴离子交换膜性能的影响。实验结果表明:随着电压的增加,阴离子交换膜对Cr(Ⅵ)的透过率逐渐增大,Cr(Ⅵ)去除率逐渐升高;随着电压的增加,阴离子交换膜对Cr(Ⅵ)的吸附率呈先增大后减小的趋势,20 V时,达到最大,为22.0%;pH为1.0~9.0时,对Cr(Ⅵ)去除率和阴离子交换膜性能的影响不大;在Cr(Ⅵ)初始质量浓度109.5 mg/L、电压20 V、pH 6.0~7.0、电解时间60 min的条件下,Cr(Ⅵ)去除率可达94.4%;Cu^(2+)(初始质量浓度100.3 mg/L)的存在使Cr(Ⅵ)去除率降低至80.2%,降低了14.2个百分点。

关键词：离子膜 Cr(Ⅵ) 去除率透过率吸附率

TIST: Transcriptome and Histopathological Image Integrative Analysis for Spatial Transcriptomics

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Genomics, Proteomics & Bioinformatics 2022年第5期20卷 974-988页

作者： Yiran Shan Qian Zhang Wenbo Guo Yanhong Wu yuxin miao Hongyi Xin Qiuyu Lian Jin Gu MOE Key Laboratory of Bioinformatics BNRIST Bioinformatics DivisionDepartment of AutomationTsinghua UniversityBeijing 100084China UM-SJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240China Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China

Sequencing-based spatial transcriptomics(ST)is an emerging technology to study in situ gene expression patterns at the whole-genome ***,ST data analysis is still complicated by high technical noises and low *** addition to the transcriptomic data,matched histopathological images are usually generated for the same tissue sample along the ST *** matched high-resolution histopathological images provide complementary cellular phenotypical information,providing an opportunity to mitigate the noises in ST *** present a novel ST data analysis method called transcriptome and histopathological image integrative analysis for ST(TIST),which enables the identification of spatial clusters(SCs)and the enhancement of spatial gene expression patterns by integrative analysis of matched transcriptomic data and *** devises a histopathological feature extraction method based on Markov random field(MRF)to learn the cellular features from histopathological images,and integrates them with the transcriptomic data and location information as a network,termed *** on TIST-net,SCs are identified by a random walk-based strategy,and gene expression patterns are enhanced by neighborhood *** benchmark TIST on both simulated datasets and 32 real samples against several state-of-the-art *** show that TIST is robust to technical noises on multiple analysis tasks for sequencing-based ST data and can find interesting microstructures in different biological *** is available at http://***/software/tist/and https://***/biocode/tools/BT007317.

关键词： Spatial transcriptomics Multimodal information integration Network-based analysis Spatial cluster identification Gene expression enhancement

Flour-derived borocarbonitride enriched with boron-oxygen species for the oxidative dehydrogenation of propane to olefins

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Science China Chemistry 2023年第8期66卷 2389-2399页

作者： Dong Li Jingying Bi Zean Xie Lian Kong Bing Liu Xiaoqiang Fan Xia Xiao yuxin miao Zhen Zhao State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang110034China Department of Chemical Engineering School of Chemical and Material EngineeringJiangnan UniversityWuxi214122China

The preparation of porous materials by the simple and low-cost methods is one of the hot topics in materials ***,the porous carbon-incorporated BN(P-CBN)was synthesized from the low-cost flour by a fermentation combined with freezedrying technology and ammonolysis.P-CBN-x samples not only maintain the pores of the fermented dough,but also produce abundant oxygen-containing boron species(B-OH,O-O and B-O).Due to the unique structural advantages,P-CBN-x catalysts exhibit remarkably better catalytic performance than bulk BN for the oxidative dehydrogenation of propane(ODHP)to produce ***,P-CBN-23 obtains high C_(3)H_(8 )conversion of 62.1%and olefin yield of 42.7%.In-situ DRIFTS experiments and DFT calculations demonstrate the B-OO-B species in P-CBN-x framework is the most active species for the C3H8activation and the B-O…O-B species can be readily regenerated by O_(2),thus promoting the conversion of propane to olefin.

关键词： flour fermentation carbon-incorporated boron nitrides oxidative dehydrogenation propane

氟比洛芬通过PI3K/AKT/PHB2通路抑制线粒体诱导的心肌细胞氧化应激损伤

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中国煤炭工业医学杂志 2024年第3期27卷 225-232页

作者：张熙逄晓倩苗雨欣贡美娜田炜徐菁蔓华北理工大学公共卫生学院河北省唐山市063210 河北省器官纤维化重点实验室华北理工大学实验动物中心

目的探讨氟比洛芬能否减缓氧化应激诱发心肌细胞损伤及其可能机制。方法建立心肌H9c2细胞氧化应激损伤模型并分为对照(Control)组、过氧化氢(H_(2)O_(2))组、氟比洛芬+过氧化氢(F+H_(2)O_(2))组、氟比洛芬(F)组、氟比洛芬+过氧化氢+渥... 详细信息

目的探讨氟比洛芬能否减缓氧化应激诱发心肌细胞损伤及其可能机制。方法建立心肌H9c2细胞氧化应激损伤模型并分为对照(Control)组、过氧化氢(H_(2)O_(2))组、氟比洛芬+过氧化氢(F+H_(2)O_(2))组、氟比洛芬(F)组、氟比洛芬+过氧化氢+渥曼青霉素(F+H_(2)O_(2)+Wort)组、渥曼青霉素(Wort)组。MTT法检测细胞活性;激光共聚焦显微镜检测线粒体膜电位的变化;利用Western blot技术检测磷酸化糖原合成酶激酶-3β(p-GSK-3β),磷酸化蛋白激酶-B(p-AKT)抗增殖蛋白1(PHB1),抗增殖蛋白2(PHB2)的表达水平。结果与H_(2)O_(2)组比较,F+H_(2)O_(2)(10、50、100μmol/L)组细胞存活率升高,差异具有统计学意义(P0.05)。与F+H_(2)O_(2)组比较,F+H_(2)O_(2)+Wort组中的PHB2、p-GSK-3β、p-AKT蛋白表达水平下降,差异具有统计学意义(P0.05)。结论氟比洛芬可能通过激活PI3K/AKT信号途径,一方面抑制GSK-3β活性,另一方面增加PHB2,进而抑制线粒体膜通透性转换孔(mPTP)开放,减轻氧化应激引起的心肌H9c2细胞损伤。

关键词：氟比洛芬氧化应激损伤 PHB PI3K/AKT GSK-3β

“汉堡包”包扎法在耳部手术中预防健侧耳压力性损伤的研究

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中国美容整形外科杂志 2024年第4期35卷 199-202页

作者：李辉正杨雯惠程行健杨磊董玉超安雪婷苗雨欣刘柳河北医科大学第三医院烧伤整形科河北石家庄050051

目的探讨“汉堡包”包扎法在耳部手术中的临床应用效果。方法回顾性分析自2013年1至2023年12月,河北医科大学第三医院烧伤整形科收治120例耳部手术患者,根据术中包扎方法分为两组,60例/组。观察组采用“汉堡包”法预防压力性损伤;对照... 详细信息

目的探讨“汉堡包”包扎法在耳部手术中的临床应用效果。方法回顾性分析自2013年1至2023年12月,河北医科大学第三医院烧伤整形科收治120例耳部手术患者,根据术中包扎方法分为两组,60例/组。观察组采用“汉堡包”法预防压力性损伤;对照组采用常规方法,不做特殊防护。统计分析两组患者术后健侧耳郭、头皮皮肤情况及压力性损伤发生率。结果观察组患者压力性损伤发生率显著低于对照组,差异具有统计学意义(P=0.035)。结论以记忆海绵为主要材料的“汉堡包”包扎法包裹耳部能够有效防止术中压力性损伤的发生,值得在临床工作中推广应用。

关键词：耳部手术记忆海绵压力性损伤 “汉堡包”法围术期护理

Plasma-exfoliated g-C_(3)N_(4) with oxygen doping: tailoring photocatalytic properties

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Frontiers of Chemical Science and Engineering 2024年第2期18卷 27-39页

作者： yuxin Li Junxin Guo Rui Han Zhao Wang National Engineering Research Centre of Industry Crystallization Technology School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

Heteroatom doping and defect engineering have been proposed as effective ways to modulate the energy band structure and improve the photocatalytic activity of g-C_(3)N_(4). In this work, ultrathin defective g-C_(3)N_(4) was successfully prepared using cold plasma. Plasma exfoliation reduces the thickness of g-C_(3)N_(4) from 10 nm to 3 nm, while simultaneously introducing a large number of nitrogen defects and oxygen atoms into g-C_(3)N_(4). The amount of doped O was regulated by varying the time and power of the plasma treatment. Due to N vacancies, O atoms formed strong bonds with C atoms, resulting in O doping in g-C_(3)N_(4). The mechanism of plasma treatment involves oxygen etching and gas expansion. Photocatalytic experiments demonstrated that appropriate amount of O doping improved the photocatalytic degradation of rhodamine B compared with pure g-C_(3)N_(4). The introduction of O optimized the energy band structure and photoelectric properties of g-C_(3)N_(4). Active species trapping experiments revealed ·O_(2)^(–) as the main active species during the degradation.

关键词： graphitic carbon nitride cold plasma oxygen doping nitrogen defect visible-light photocatalysis

Modulation mechanism of electron energy dissipation on superlubricity based on fluorinated 2D ZIFs

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Nano Research 2024年第4期17卷 3198-3209页

作者： yuxin Li Lei Liu Kunpeng Wang Yuhong Liu State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China School of Mechatronic Engineering Shanghai UniversityShanghai 200444China

Electron energy dissipation is an important energy dissipation pathway that cannot be ignored in friction ***-dimensional zeolite imidazole frameworks(2D ZIFs)and fluorine doping strategies give 2D Zn-ZIF and 2D Co-ZIF unique electrical properties,making them ideal materials for studying electron energy dissipation *** this paper,based on the superlubricity modulation of 2D fluoridated ZIFs,the optimal tribological properties are obtained on the 2D F-Co-ZIF surface,with the friction coefficient as low as *** experiments,density functional theory(DFT)simulation,and fluorescence detection are used to explain the mechanism of fluorine doping regulation of tribological properties from the two stages,namely energy transfer and energy ***,the energy will transfer into the friction system through the generation of electron–hole pairs under an external excitation,and release by radiation and non-radiation energy dissipation *** reduces energy transfer by altering the electronic properties and band structures of ZIFs,and slows down the charge transfer by enhancing the shielding efficiency,thus slowing the non-radiative energy dissipation rate during the energy release *** insights not only help us better understand the role of fluorine doping in improving tribological properties,but also provide a new way to further explore the electron energy dissipation pathway during friction.

关键词： superlubricity electron energy dissipation modulation two-dimensional zeolite imidazole frameworks(2D ZIFs) fluorination

Endochondral ossification of hindlimbs in embryonic development of Japanese Quail(Coturnix japonica)

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Avian Research 2024年第1期15卷 123-132页

作者： Xuan Li yuxin Zhang Hongfeng Zhao College of Life Sciences Shaanxi Normal UniversityXi’an710119China

The endochondral ossification of hindlimb is essential to a bird’s ability to stand,walk and *** hindlimb is ossified in the embryos before hatching in precocial ***,the molecular mechanisms of hindlimb ossification in birds is still ***,we tried to examine the process of hindlimb ossification and its molecular regulation by using an animal model—Japanese Quail(Coturnix japonica).We selected four critical stages(Embryo Day:E6,E8,E12 and E16) of skeletal development of embryonic quails for hindlimb skeleton staining to show the process of endochondral ossification and to examine the molecular regulation of endochondral osteogenesis by RNA-Seq *** results showed that ossification became increased with embryonic development and most hindlimb was ossified before ***-Seq analysis revealed that various signaling pathways were involved with endochondral ossification with thyroid hormone signaling and WNT signaling pathway particularly ***,the expression levels of 42 genes were continuously upregulated and 14 genes were continuously downregulated from E6 to *** present study might provide new insights into complex molecular mechanisms in regulation of endochondral ossification.

关键词： Embryos Hindlimb Ossification Precocial Transcriptomics