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蛹虫草茯茶的加工工艺及其代谢产物特征分析

陕西科技大学学报 2024年第1期42卷 45-50,58页

作者：夏飞曹时玲邬培鸿高悦华成欣陕西科技大学食品科学与工程学院陕西西安710021

为明确蛹虫草茯茶的加工工艺关键步骤及其代谢产物特征,研究分析了汽蒸时间及原料配比对蛹虫草茯茶品质的影响,进而利用液相色谱-质谱联用法对蛹虫草茯茶的代谢产物进行了全面解析.结果表明:8%蛹虫草与黑毛茶复配,汽蒸10 min制备的蛹虫... 详细信息

为明确蛹虫草茯茶的加工工艺关键步骤及其代谢产物特征,研究分析了汽蒸时间及原料配比对蛹虫草茯茶品质的影响,进而利用液相色谱-质谱联用法对蛹虫草茯茶的代谢产物进行了全面解析.结果表明:8%蛹虫草与黑毛茶复配,汽蒸10 min制备的蛹虫草茯茶茶多酚含量为47.84±2.33 mg/g,显著低于传统茯茶;蛋白质含量达到233.89±4.30 mg/g,显著高于传统茯茶.代谢组分析结果显示,与茯茶相比,蛹虫草茯茶有119种代谢物显著发生变化(VIP>2.0,p<0.05),其中72种代谢产物相对含量显著增加,47种代谢产物相对含量显著下降.其中,氨基酸类代谢物占比最多,且上调数量明显高于下调数量.代谢通路分析证实,蛹虫草茯茶与茯茶的差异代谢物主要是通过精氨酸和脯氨酸代谢、氨基糖和核苷酸糖代谢、烟酸和烟酰胺的代谢及精氨酸生物合成等代谢途径产生.本研究初步探索了蛹虫草茯茶的加工工艺关键步骤,并揭示了蛹虫草茯茶的代谢产物特征.为促进茯茶产品多元化以及深入开发蛹虫草茯茶功能奠定物质理论基础.

关键词：茯茶蛹虫草加工工艺代谢产物

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浅谈胰岛素泵在糖尿病患者口腔颌面外科围术期中的作用

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糖尿病新世界 2024年第3期27卷 77-80页

作者：刘红周丽高亭亭潍坊内分泌与代谢病医院口腔科山东潍坊262600

目的探讨胰岛素泵在糖尿病患者口腔颌面外科围术期中的作用。方法回顾性选取2022年1—12月潍坊内分泌与代谢病医院口腔科收治的60例糖尿病且接受口腔颌面外科手术患者的临床资料,将30例采用皮下注射胰岛素治疗的患者作为对照组,将30例... 详细信息

目的探讨胰岛素泵在糖尿病患者口腔颌面外科围术期中的作用。方法回顾性选取2022年1—12月潍坊内分泌与代谢病医院口腔科收治的60例糖尿病且接受口腔颌面外科手术患者的临床资料,将30例采用皮下注射胰岛素治疗的患者作为对照组,将30例采用胰岛素泵持续注射胰岛素治疗的患者为观察组。比较两组患者的胰岛β功能指标、血糖控制效果、围术期并发症发生率。结果两组患者术前的胰岛β功能指标比较,差异无统计学意义(P均>0.05)。术后复查时,观察组患者的各项胰岛β功能指标均优于对照组,差异有统计学意义(P均<0.05)。观察组血糖指标和糖化血红蛋白水平低于对照组,差异有统计学意义(P均<0.05)。观察组围术期并发症总发生率低于对照组,差异有统计学意义(P<0.05)。结论糖尿病合并口腔颌面外科手术的患者出现创口感染及并发症发生率较高,主要因素包括采取麻醉后产生的不良反应及手术创伤。为稳定控制血糖,应采取胰岛素泵持续皮下注射的方式,降低术后并发症风险,为患者的健康预后奠定基础。

关键词：糖尿病口腔颌面外科围术期风险胰岛素泵

Chimera states in bipartite networks of FitzHugh-Nagumo oscillators

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Frontiers of physics 2018年第2期13卷 43-50页

作者： Zhi-Min Wu hong-Yan Cheng Yuee Feng Hai-hong Li Qiong-Lin Dai Jun-Zhong Yang School of Science Beijing University of Posts and Telecommunications Beijing 100876 China Basic Education Department Jiangsu Aviation Technical College Zhenjiang 212134 China

Chimera states consisting of spatially coherent and incoherent domains have been observed in differ- ent topologies such as rings, spheres, and complex networks. In this paper, we investigate bipartite networks of nonlocally coupled FitzHugh-Nagumo （FHN） oscillators in which the units are allocated evenly to two layers, and FHN units interact with each other only when they are in different lay- ers. We report the existence of chimera states in bipartite networks. Owing to the interplay between chimera states in the two layers, many types of chimera states such as in-phase chimera states, an- tiphase chimera states, and out-of-phase chimera states are classified. Stability diagrams of several typical chimera states in the coupling strength-coupling radius plane, which show strong multistability of chimera states, are explored.

关键词： chimera states bipartite networks FitzHugh-Nagumo oscillators

Microstructure Evolution and Growth Orientation of Directionally Solidified Mg–4 wt% Zn Alloy with Different Growth Rates

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Acta Metallurgica Sinica(English Letters) 2017年第12期30卷 1185-1191页

作者： hong-Min Jia Xiao-Hui Feng Yuan-Sheng Yang Institute of Metal Research Chinese Academy of SciencesShenyang 110016 China University of Chinese Academy of Sciences Beijing 100039China Shandong Key Laboratory for High Strength Lightweight Metallic Materials Ji'nan 250014 China

The microstructure evolution and growth orientation of directionally solidified Mg-4 wt% Zn alloy in the growth rate range from 20 to 200μm/s were investigated. A typical cellular structure was observed with a growth rate of 20 μm/s, and the cellular spacing was 115 μm. When the growth rate increased to 60 μm/s, cellular structure with some developed perturbations was obtained and the cellular spacing was 145 μm, suggesting that the cell-to-dendrite transition happened at the growth rate lower than 60 μm/s. As the growth rate further increased, the microstructure was dendritic and the primary dendritic arm spacing decreased. The relationship between the primary dendritic arm spacings and the growth rates was in good agreement with Trivedi model during dendritic growth. Besides, X-ray diffraction and transmission electron microscopy analyses showed that the growth direction of directionally solidified Mg-4 wt% Zn alloy was （1120） lay in {0002} crystal plane, and the preferred orientation was explained with the lattice vibration model for one-dimensional monatomic chain.

关键词： Directional solidification Mg-Zn alloy Microstructure evolution Primary dendritic arm spacing Growth orientation

Current status in the treatment options for esophageal achalasia

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World Journal of Gastroenterology 2013年第33期19卷 5421-5429页

作者： Seng-Kee chuah Chien-Hua Chiu Wei-Chen Tai Jyong-hong Lee Hung-I Lu Chi-Sin Changchien Ping-Huei Tseng Keng-Liang Wu Gastrointestinal Motility Unit Division of HepatogastroenterologyKaohsiung Chang Gung Memorial Hospitaland Chang Gung University College of Medicine Division of General Medicine Department of MedicineKaohsiung Chang Gung Memorial Hospitaland Chang Gung University College of Medicine Digestive Disease Center Department of Medical ResearchShow-Chwan Memorial Hospital Division of Thoracic and Cardiovascular Surgery Kaohsiung Chang Gung Memorial Hospital Department of Internal Medicine Graduate Institute of Clinical MedicineNational Taiwan University Hospital and College of MedicineNational Taiwan University

Recent advances in the treatment of achalasia include the use of high-resolution manometry to predict the outcome of patients and the introduction of peroral endoscopic myotomy(POEM).The first multicenter randomized,controlled,2-year follow-up study conducted by the European Achalasia Trial group indicated that laparoscopic Heller myotomy(LHM)was not superior to pneumatic dilations(PD).Publications on the long-term success of laparoscopic surgery continue to *** addition,laparoscopic single-site surgery is applicable to advanced laparoscopic operations such as LHM and anterior *** optimal treatment option is an ongoing matter of *** this review,we provide an update of the current progress in the treatment of esophageal *** new conclusive data prove otherwise,LHM is considered the most durable treatment for achalasia at the expense of increased reflux-associated ***,PD is the first choice for non-surgical treatment and is more *** PD according to an"on-demand"strategy based on symptom recurrence can achieve long-term *** making should be based on clinical evidence that identifies a subcategory of patients who would benefit from specific treatment *** has shown promise but its long-term efficacy and safety need to be assessed further.

关键词： Esophageal achalasia Endoscopic pneumatic dilations Botulinum injection Peroral endoscopic myotomy Minimally invasive Heller myotomy

添加钙盐对钒钛铁精矿氧化球团物相、强度及孔隙率的影响

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烧结球团 2024年第5期49卷 39-46页

作者：吴恩辉李军徐众侯静张士举李宏张远攀枝花学院钒钛学院四川攀枝花617000 攀枝花学院钒钛资源综合利用四川省重点实验室四川攀枝花617000

为了响应国家“双碳”目标,解决钒钛铁精矿酸性氧化球团不能满足高炉渣系对钙、镁成分要求的问题,本文以钒钛铁精矿为原料,研究氧化温度、氧化时间、钙盐添加量和膨润土添加量对氧化球团物相组成、抗压强度和孔隙率的影响。试验结果表明... 详细信息

为了响应国家“双碳”目标,解决钒钛铁精矿酸性氧化球团不能满足高炉渣系对钙、镁成分要求的问题,本文以钒钛铁精矿为原料,研究氧化温度、氧化时间、钙盐添加量和膨润土添加量对氧化球团物相组成、抗压强度和孔隙率的影响。试验结果表明:随着氧化温度的升高,钒钛铁精矿主要发生磁铁矿转变为赤铁矿和钛铁矿转为铁板钛矿两个氧化过程;随着氧化温度的升高和氧化时间的延长,氧化球团抗压强度提高,孔隙率降低;随着钙盐添加量的增加,氧化球团抗压强度显著下降,孔隙率明显增大;在膨润土添加量为0.75%,氧化时间为120 min和氧化温度为1 200℃的条件下,添加1.5%氢氧化钙的氧化球团的抗压强度和孔隙率分别为3 449.9 N/P和22.70%;添加1.5%碳酸钙的氧化球团的抗压强度和孔隙率分别为3 168.6 N/P和25.25%。本文研究结果可为提高钒钛铁精矿高炉入炉比奠定原料基础,进一步降低高炉冶炼工艺的能耗水平。

关键词：钒钛铁精矿氧化球团抗压强度孔隙率

Liquid droplet movement on horizontal surface with gradient surface energy

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Science China(Technological Sciences) 2006年第6期49卷 733-741页

作者： LIAO Qiang WANG hong ZHU Xun LI Mingwei Institute of Engineering Thermophysics Chongqing University Chongqing 400044 China Institute of Engineering Thermophysics Chongqing University Chongqing 400044 China Institute of Engineering Thermophysics Chongqing University Chongqing 400044 China Institute of Engineering Thermophysics Chongqing University Chongqing 400044 China

A surface with gradient surface energy was fabricated on a silicon wafer by using the chemical vapor deposition (CVD) technology with the dodecyltrichlorosilane (C12H25Cl3Si) vapor which was adsorbed chemically on the surface of the silicon wafer to form a self-assemble monolayer (ASM); thus a gradient profile of wettability. The microscopic contours of the gradient surface were measured with Seiko SPA400 atom force microscope (AFM). And the surface wettability profile was characterized by the sessile drop method, measuring the contact angle of fine water droplets that lay on the gradient surface, to represent the distribution of the surface energy on the surface. Using a high-speed video imaging system, the motion of water droplet on the horizontal gradient surface was visualized; the transient velocity was measured under ambient condition. The experimental results show that the liquid droplets can be driven to move from hydrophobic side to hydrophilic side on the horizontal gradient surface; the velocity of droplet can reach up to 40 mm/s. In addition, the motion of the water droplet can be generally divided into two stages: an acceleration stage; a deceleration stage. The droplet presents a squirming movement on the surface with a lower peak velocity; a larger extent of deceleration motion. And the static advancing contact angle of the droplet is obviously larger than the dynamic advancing contact angle on the gradient energy surface.

关键词： chemical vapor deposition, surface with gradient surface energy, contact angle profile, droplet motion.

尖孢镰刀菌ATMT体系的构建及其对甘草的促生效果评价

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中国中药杂志 2024年第11期49卷 2882-2888页

作者：陈嘉欣朱泓宇任广喜左鑫姜丹刘春生北京中医药大学中药学院北京102488

该研究旨在通过耐盐能力、产吲哚乙酸(IAA)能力、溶磷能力、产铁载体能力等指标评价一株甘草内生尖孢镰刀菌的体内功能,通过根癌农杆菌介导的遗传转化技术建立该菌的稳定遗传转化体系,并通过标记基因绿色荧光蛋白(GFP)的克隆和β-葡萄... 详细信息

该研究旨在通过耐盐能力、产吲哚乙酸(IAA)能力、溶磷能力、产铁载体能力等指标评价一株甘草内生尖孢镰刀菌的体内功能,通过根癌农杆菌介导的遗传转化技术建立该菌的稳定遗传转化体系,并通过标记基因绿色荧光蛋白(GFP)的克隆和β-葡萄糖苷酸酶(GUS)染色的效率检测转化子的稳定性与染色高效性,筛选出高效稳定的转化子用于回染甘草,评价其对甘草幼苗生长的影响。研究结果表明该菌耐盐性较好,在含7%氯化钠的马铃薯葡萄糖琼脂(PDA)培养基上仍能生长,但生长速度随着PDA培养基中氯化钠含量的增高而减缓;该菌具有产吲哚乙酸的功能,其发酵液中IAA的质量浓度约为3.32mg·m L^(-1)。该研究成功构建了该菌的遗传转化体系,且其根癌农杆菌介导的遗传转化(ATMT)体系高效而稳定。筛选获得1株兼具染色高效性和遗传稳定性的转化子,该转化子在甘草植株中的回染率为76.92%,能够显著提高一月龄甘草幼苗的主根长,促进甘草幼苗根部的生长发育。该研究结果可以为生物菌肥的开发及优质甘草的生长调控奠定基础。

关键词：尖孢镰刀菌根癌农杆菌介导的遗传转化(ATMT) 体内功能转化子甘草促生

Enhanced conductivity and stability of Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)ceramics with dual phases and twin structures

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Journal of Advanced Ceramics 2023年第9期12卷 1742-1757页

作者： Chengjian Ma Longhua He Lei Bi hong Gao Jianxiang Ding Analytical and Testing Center Yancheng Institute of TechnologyYancheng 224051China School of Materials Science and Engineering Yancheng Institute of TechnologyYancheng 224051China School of Resource Environment and Safety Engineering University of South ChinaHengyang 421001China School of Mathematics and Physics Yancheng Institute of TechnologyYancheng 224051China School of Materials Science and Engineering Anhui University of TechnologyMa’anshan 243002China

Semiconductor materials with heterogeneous interfaces and twin structures generally demonstrate a higher concentration of carriers and better electrical stability.A variety of Cu-doped Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)(0≤x≤0.5)negative temperature coefficient(NTC)ceramics with dual phases and twin structures were successfully prepared in this *** refinement indicates that the content of a cubic spinel phase increases with increasing Cu *** addition of Cu can promote grain growth and ***-level structural characterization reveals the evolution of twin morphology from large lamellae with internal fine lamellae(LIT lamellae)to large lamellae without internal fine lamellae(L lamellae)and the distribution of twin boundary ***-principles calculations reveal that the dual phases and twin structures have lower oxygen-vacancy formation energy than those in the case of the pure tetragonal and cubic spinel,thereby enhancing the transmission of ***,the three-dimensional charge-density difference shows that metal ions at the interface lose electrons and dwell in high valence states,thereby enhancing electrical stability of the NTC ***,the additional Cu ions engage in electron-exchange interactions with Mn and Co ions,thereby reducing *** comparison to previous Cu-containing systems,the Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)series exhibit superior stability(aging value≤2.84%),tunable room-temperature resistivity(ρ),and material constant(B)value(17.5Ω·cm≤ρ≤7325Ω·cm,2836 K≤B≤4315 K).These discoveries lay a foundation for designing and developing new NTC ceramics with ultra-high performance.

关键词： negative temperature coefficient(NTC)ceramics Cu-containing spinel high electrical stability twin structure first-principles calculation electron-exchange interaction