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数字化背景下辽宁先进制造业与现代服务业融合机遇与策略

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经济研究导刊 2024年第11期 27-30页

作者：刘成浩王嵘嵘张子辰鞍山师范学院人工智能学院辽宁鞍山114007 沈阳工业大学人工智能学院沈阳110870 沈阳航空航天大学经济与管理学院沈阳110136

随着数字化时代的到来,各行各业的发展都融入了数字化技术。以传统制造业为主要经济增长方式的辽宁在新时代亟须调整产业结构。近年来,辽宁大力发展先进制造业,基本实现了传统制造业向先进制造业的转型。辽宁现代服务业的发展相对滞后,... 详细信息

随着数字化时代的到来,各行各业的发展都融入了数字化技术。以传统制造业为主要经济增长方式的辽宁在新时代亟须调整产业结构。近年来,辽宁大力发展先进制造业,基本实现了传统制造业向先进制造业的转型。辽宁现代服务业的发展相对滞后,但在近年得到重视,发展趋势很好。辽宁制造业与服务业融合方面的研究已经取得了一定的成果,而在数字化背景下辽宁先进制造业与现代服务业融合方面的研究还很少。鉴于此,首先介绍辽宁先进制造业与现代服务业的发展现状,继而分析数字化对辽宁先进制造业与现代服务业融合的影响及带来的机遇,最后提出数字化背景下辽宁先进制造业与现代服务业融合的策略。

关键词：数字化辽宁先进制造业现代服务业融合

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GC-MS法测定奶茶中18项塑化剂

山东化工 2024年第3期53卷 158-160页

作者：李俏张晓娟张云霄张子臣魏雨芬方圆标志检验检测(山东)有限公司山东济南250100

建立奶茶中测定18项塑化剂的GC-MS分析方法。样品使用正己烷直接提取法进行提取,GC-MS SIM模式进行扫描,外标法定量。17种邻苯二甲酸酯标准溶液质量浓度在10~400μg/L,邻苯二甲酸二异壬酯标准溶液质量浓度在500~5000μg/L线性范围内线... 详细信息

建立奶茶中测定18项塑化剂的GC-MS分析方法。样品使用正己烷直接提取法进行提取,GC-MS SIM模式进行扫描,外标法定量。17种邻苯二甲酸酯标准溶液质量浓度在10~400μg/L,邻苯二甲酸二异壬酯标准溶液质量浓度在500~5000μg/L线性范围内线性关系良好,相关系数(r)均大于0.996。17种邻苯二甲酸酯含量为0.1,0.5,1.0 mg/kg,邻苯二甲酸二异壬酯含量为0.5,2.0,3.0 mg/kg添加水平范围时,奶茶中18项邻苯二甲酸酯的回收率在86.7%~107.8%,相对标准偏差在0.03%~1.79%(n=6)。该方法前处理简单,检测数据准确,可用于大批量奶茶中邻苯二甲酸酯类的检测。

关键词：气相色谱质谱法奶茶塑化剂

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First-generation EGFR tyrosine kinase inhibitor therapy in 106 patients with compound EGFR-mutated lung cancer: a single institution’s clinical practice experience

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Cancer Communications 2018年第1期38卷 556-568页

作者： Xiangyang Yu Xuewen zhang zichen zhang Yongbin Lin Yingsheng Wen Yongqiang Chen Weidong Wang Lanjun zhang State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineGuangzhou 510060GuangdongChina Department of Thoracic Surgery Sun Yat-sen University Cancer Center651 Dongfeng Road EastGuangzhou 510060GuangdongChina Department of Medical Oncology Sun Yat-sen University Cancer CenterGuangzhou 510060Guang-dongChina Department of Molecular Pathology Sun Yat-sen University Cancer CenterGuangzhou 510060GuangdongChina

Background:The antitumour efficacy of tyrosine kinase inhibitors(TKIs)in lung cancer patients with compound epidermal growth factor receptor(EGFR)mutations has not been *** study summarizes a single institutional experience of first-generation TKI therapy for lung cancers with compound EGFR ***:A total of 106 consecutive patients with tumours bearing compound EGFR mutations were identified between January 2012 and May 2016;all patients received first-generation TKI *** in exon 19 and the L858R point mutation in exon 21 were considered common mutations;T790M was considered separately because of its association with TKIs *** other mutation was defined as a rare *** were divided as follows:double common mutations(group A);common plus T790M mutations(group B);common plus rare muta-tions(group C);double rare mutations(group D);and rare plus T790M mutations(group E).A separate group of 115 consecutive patients with a single common mutation was created for comparative analysis(group F).Results:The frequency of patients with compound EGFR was 2.9%(114/3925)and their response rate to first-genera-tion TKIs was 50.9%,which was not significantly different from group F(67.0%,P=0.088).The progression-free survival(PFS)of the 106 patients receiving TKI therapy was worse than that of group F(median,9.1 vs.13.0 months,respec-tively;P<0.001).The PFS of the compound mutation group was shorter than that of the single common mutation group(median,10.1 months in group A,P=0.240;9.1 months in group B,P<0.001;9.6 months in group C,P=0.010;6.5 months in group D,P=0.048;5.4 months in group E,P=0.017).Patients with a co-occurring mutation in exon 20(excluding T790M)exhibited significantly worse PFS than the patients with other compound mutations or with a single common mutation(median,6.5 vs.9.1 vs.13.0 months,respectively,P=0.002).Conclusions:There was significant heterogeneity among the compound EGFR mutations and their respons

关键词： EGFR TKIs Compound mutations

不同生物炭对土壤镉形态及小白菜吸收镉的影响

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山西化工 2024年第5期44卷 208-210,219页

作者：张仕骏包明哲张子晨王晓斌王晨骁来雪慧太原工业学院环境与安全工程系山西太原030008

以农业废弃物为原料,制备玉米秸秆炭(MB)和花生壳炭(PB),通过盆栽实验分析对土壤镉(Cd)形态及小白菜的吸收情况。结果表明,与未添加生物炭处理(CK)相比,两种生物炭均可有效降低土壤Cd含量,同时土壤Cd形态由酸溶态和可氧化态向残渣态转... 详细信息

以农业废弃物为原料,制备玉米秸秆炭(MB)和花生壳炭(PB),通过盆栽实验分析对土壤镉(Cd)形态及小白菜的吸收情况。结果表明,与未添加生物炭处理(CK)相比,两种生物炭均可有效降低土壤Cd含量,同时土壤Cd形态由酸溶态和可氧化态向残渣态转化。土壤有效Cd含量与土壤p H值、有机碳含量均呈现显著的负相关关系(p<0.05),相关系数大于0.90。与CK相比,MB处理小白菜地上Cd含量降幅为17.01%;MB处理的转运系数降低9.19%,而PB处理的转运系数几乎没有变化。因此,MB生物炭能降低土壤Cd的有效性,并降低小白菜对Cd的吸收和转运。

关键词：生物炭土壤镉重金属形态镉吸收

Design and Optimization of Comb Drive Accelerator for High Frequency Oscillation

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Modern Mechanical Engineering 2018年第1期8卷 1-10页

作者： zichen zhang Shandong Experimental High School Jinan China

Comb-drive devises have been widely applied in many fields. However, the application of high frequency sensor, such as rocket chamber, still remains problems. In this work, a finite element code was used for the design, optimization and visualization of a comb drive accelerator. In the simulation results, the post-optimization design has high performance in high frequency oscillation operating environment. The optimization is based on the ideal eigenfrequency and Nelder-Mead method. The 3-D working conditions are realized by testing and comparing the time and frequency domain of pre-optimized and optimized design whose frequency ranges from 2000 Hz to 5000 Hz. Finally, the electric potential and capacitance in comb drive are visualized, which shows the better electric signals and displacements.

关键词： Comb-Drive Micro-Structure COMSOL Multiphysics Optimization Electric Responses

High-Performance Photo-Modulated Thin-Film Transistor Based on Quantum dots/Reduced Graphene Oxide Fragment-Decorated ZnO Nanowires

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Nano-Micro Letters 2016年第3期8卷 247-253页

作者： Zhi Tao Yi-an Huang Xiang Liu Jing Chen Wei Lei Xiaofeng Wang Lingfeng Pan Jiangyong Pan Qianqian Huang zichen zhang School of Electronic Science and Engineering Southeast University State Key Laboratory of Precision Measurement Technology and Instruments Collaborative Innovation Center for Micro/Nano Fabrication Device and System Department of Precision Instrument Tsinghua University School of Information and Communication Engineering Beijing University of Posts and Telecommunications Institute of Semiconductors Chinese Academy of Science

In this paper, a photo-modulated transistor based on the thin-film transistor structure was fabricated on the flexible substrate by spin-coating and magnetron sputtering. A novel hybrid material that composed of Cd Se quantum dots and reduced graphene oxide(RGO) fragment-decorated ZnO nanowires was synthesized to overcome the narrow optical sensitive waveband and enhance the photo-responsivity. Due to the enrichment of the interface and heterostructure by RGO fragments being utilized, the photo-responsivity of the transistor was improved to 2000 AW^(-1) and the photo-sensitive wavelength was extended from ultraviolet to visible. In addition, a positive back-gate voltage was employed to reduce the Schottky barrier width of RGO fragments and ZnO nanowires. As a result, the amount of carriers was increased by 10 folds via the modulation of back-gate voltage. With these inherent properties, such as integrated circuit capability and wide optical sensitive waveband, the transistor will manifest great potential in the future applications in photodetectors.

关键词： Thin-film transistor Quantum dots Reduced graphene oxide ZnO nanowires

On Klein tunneling of low-frequency elastic waves in hexagonal topological plates

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Applied Mathematics and Mechanics(English Edition) 2024年第7期45卷 1139-1154页

作者： Yuxin YAO Yuansheng MA Fang HONG Kai zhang Tingting WANG Haijun PENG zichen DENG School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi’an710072China MIIT Key Laboratory of Dynamics and Control of Complex Systems Northwestern Polytechnical UniversityXi’an710072China State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of TechnologyDalian116024Liaoning ProvinceChina

Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential *** the concept of tunneling into the analysis of phononic crystals can broaden the application *** this study,the structure of the unit cell is designed,and the low frequency(<1 k Hz)valley locked waveguide is realized through the creation of a phononic crystal plate with a topological phase transition *** defect immunity of the topological waveguide is verified,that is,the wave can propagate along the original path in the cases of impurities and ***,the tunneling phenomenon is introduced into the topological valley-locked waveguide to analyze the wave propagation,and its potential applications(such as signal separators and logic gates)are further explored by designing phononic crystal *** research has broad application prospects in information processing and vibration control,and potential applications in other directions are also worth exploring.

关键词： topological metamaterial elastic wave Klein tunneling valley-locked waveguide

Well-designed g-C_(3)N_(4)nanosheet incorporated Ag loaded Er_(0.05)La_(0.95)FeO_(3)heterojunctions for isoamyl alcohol detection

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Journal of Advanced Ceramics 2024年第6期13卷 736-745页

作者： Kaichun Xu Mengjie Han zichen Zheng Zexin Yu Hanlin Liao Hui Sun Chao zhang College of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Institute for Manufacturing Technologies of Ceramic Components and Composites(IMTCCC) University of StuttgartStuttgart 70569Germany ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBMBelfort 90010France School of Space Science and Physics Shandong UniversityWeihai 264209China

Because the volatile content of isoamyl alcohol increases sharply on the seventh day of wheat mildew infection,isoamyl alcohol can be used as an early biomarker of wheat mildew ***,only a few sensors for isoamyl alcohol detection have been reported,and these sensors still suffer from low sensitivity and poor moisture ***,the isoamyl alcohol sensitivity of 5 at%Er@LaFeO_(3)(ELFO)was enhanced by loading Ag nanoparticles on the surface of the ELFO microspheres,while the optimal operating temperature was *** moisture resistance of Ag/ELFO was improved by the incorporation of g-C_(3)N_(4)nanosheets(NSs)on the surface of Ag/ELFO through electrostatic *** the requirements for practical applications in grain granaries,the sensing behavior of a Ag/ELFO-based sensor incorporating g-C_(3)N_(4)NSs at 20%relative humidity(RH)was systematically studied,and the sensor demonstrated excellent repeatability,long-term stability,and superior selectivity(791 at 50 ppm)for isoamyl alcohol with a low limit of detection(LOD=75 ppb).Furthermore,the practical results obtained for wheat at different mildew stages further confirmed the potential of the g-C_(3)N_(4)/Ag/ELFO-based sensor for monitoring the early mildew stage of *** work may offer guidance for enhancing the moisture resistance of gas-sensitive materials through the strategy of employing composite nanomaterials.

关键词： Ag gas sensor moisture resistance isoamyl alcohol Er@LaFeO_(3)(ELFO) g-C_(3)N_(4)nanosheet(NS)

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蒙古野驴腐蹄病的诊断与治疗

现代畜牧兽医 2024年第4期 53-56页

作者：照娜田秀华王晓宇张自臣王鹏鄂尔多斯市隆胜野生动物园有限责任公司内蒙古鄂尔多斯017000 东北林业大学黑龙江哈尔滨150000

鄂尔多斯市隆胜野生动物园荒漠动物苑出现一例成年蒙古野驴(Equus hemionus Pallas)感染腐蹄病,该驴表现食欲下降、步态不稳、精神萎靡。采集患驴蹄部分泌物,经染色镜检发现多形性杆菌,即坏死杆菌(Necrobacterium),随即采取隔离治疗。... 详细信息

鄂尔多斯市隆胜野生动物园荒漠动物苑出现一例成年蒙古野驴(Equus hemionus Pallas)感染腐蹄病,该驴表现食欲下降、步态不稳、精神萎靡。采集患驴蹄部分泌物,经染色镜检发现多形性杆菌,即坏死杆菌(Necrobacterium),随即采取隔离治疗。文章记录了蒙古野驴患腐蹄病诊断治疗的全过程,包括麻醉保定、修剪蹄壳、采集样本进行实验室检查、治疗及预后,以期为正确化学保定蒙古野驴、解除麻醉、针对性用药、评估用药剂量、调整用药方案、有效预防腐蹄病等提供参考。

关键词：蒙古野驴腐蹄病坏死杆菌