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The Journal of Biomedical Research 2024年第1期38卷 66-75页

作者： Mingfeng He Chanjuan Gong Yinan chen rongting chen Yanning Qian Department of Anesthesiology and Perioperative Medicine the First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu 210029China

The current study aimed to compare the effects between remimazolam and propofol on hemodynamic stability during the induction of general anesthesia in elderly patients.We used propofol at a rate of 60 mg/(kg·h)in the propofol group(group P)or remimazolam at a rate of 6 mg/(kg·h)in the remimazolam group(group R)for the induction.A processed electroencephalogram was used to determine whether the induction was successful and when to stop the infusion of the study drug.We measured when patients entered the operating room(T_(0)),when the induction was successful(T_(1)),and when before(T_(2))and 5 min after successful endotracheal intubation(T_(3)).We found that mean arterial pressure(MAP)was lower at T_(1–3),compared with T_(0) in both groups,but higher at T_(2) in the group R,whileΔMAP_(T0–T2) andΔMAP_(max) were smaller in the group R(ΔMAP_(T0–T2):the difference between MAP at time point T_(0) and T_(2),ΔMAP_(max):the difference between MAP at time point T_(0) and the lowest value from T_(0) to T_(3)).Cardiac index and stroke volume index did not differ between groups,whereas systemic vascular resistance index was higher at T_(1–3) in the group R.These findings show that remimazolam,compared with propofol,better maintains hemodynamic stability during the induction,which may be attributed to its ability to better maintain systemic vascular resistance levels.

关键词： remimazolam propofol elderly patients hypotension left ventricular systolic function systematic vascular resistance

温度和pH值对低木质素碎木反硝化过程的影响

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环境科学与技术 2024年第1期47卷 102-110页

作者：李鑫胡荣庭陈广林李玉昕杨家乐桂林理工大学广西环境污染控制理论与技术重点实验室广西桂林541006 广西农业面源污染综合治理工程研究中心广西桂林541006 中国能源建设集团广西电力设计院有限公司广西南宁530000

木质生物质作为广泛研究的碳源材料,突出问题是反硝化速率缓慢和副产物较多。为此,该文采用碱处理后的低木质素含量碎木作为原料,将反硝化过程细分为碳释放和反硝化阶段,设计温度和pH值的影响因素试验,测定“三氮”、总氮和溶解性有机物... 详细信息

木质生物质作为广泛研究的碳源材料,突出问题是反硝化速率缓慢和副产物较多。为此,该文采用碱处理后的低木质素含量碎木作为原料,将反硝化过程细分为碳释放和反硝化阶段,设计温度和pH值的影响因素试验,测定“三氮”、总氮和溶解性有机物(DOC)浓度,以及DOC的光谱特征。结果表明:碳释放和反硝化对温度变化的敏感程度不同,二者的速率在15℃条件下分别为2.6和1.1mg/(g·d),在25℃时分别升高至1.7倍和1.5倍,而在35℃时又分别升高至25℃的1.7和2.1倍;碳释放在pH值5.0和9.0时均受到抑制,而反硝化在pH值9.0条件下明显减弱;亚硝态氮在15℃条件下的峰值最高,占硝态氮去除量的35.7%,而占比值最大的是pH值为9.0的条件;反硝化期间残留DOC占释碳总量的44.6%~52.0%,包括类蛋白和类腐殖酸。

关键词：木质生物质碳源反硝化影响因素副产物

Optical,thermal and luminescence properties of La2O3-Ga2O3-ZrO2 glasses co-doped with Tm3+/Yb3+prepared by containerless technique

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Journal of Rare Earths 2022年第11期40卷 1706-1714,I0002页

作者： Jiansheng Xie Minghui Zhang Yanzhuo Wang rongting Guo Ying Shi Xiuhong Pan Xuechao Liu Kun chen Meibo Tang Feng Wu Zhihong Zhang School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Wuhan Institute of TechnologyWuhan 430205China College of Chemical and Biological Engineering Guilin University of TechnologyGuangxi Key Laboratory of Electrochemical and Magneto-chemical Functional MaterialsGuilin 541004China AECC-chengdu Chengdu 610500China

Bulk LaO-GaO-ZrO(LGZ)glass and Tm/Ybco-doped LGZ glasses were synthesized successfully using containerless technique.Raman spectra result reveals that the matrix sample possesses the low maximum phonon energy of~642 cm.The glasses show good compatibility between large Abbe numbers(>31)and high refractive indices(n>1.93).Moreover,transmittance measurements reflect that the glasses have high infrared transmittance of-81.9%,small OHabsorption coefficient and long mid-infrared cut-off wavelengths(-7.5μm).The surface morphology of host glass was characterized by scanning electron microscopy(SEM)micrograph and energy dispersive spectroscopy(EDS)tests reflect that the doped compositions are distributed into the matrix glass homogeneously.The results of thermal analysis show that the glasses have good thermal properties(T>769℃).Excited by 980 am laser,an intense 1810 am fluorescence is obtained originating from the transition:~3 E→~3 Hof Tmion,accompanied by upconversion emission.It can be observed that 1810 nm fluorescence has the highest intensity at 1 mol%YbOand owns broad full width at half-maximum(>245 nm),the luminescence intensity of~3 F→~3 Htransition increases with rising temperature from 300 to 550 K.Furthermore,the value of energy transfer efficiency shows that Ybcan transfer energy to Tmeffectively.By fitting the attenuation curves,the lifetimes of 1810 and 474 nm emission can be acquired.

关键词： Containerless technique Lanthanum gallate glass Thermal analysis Luminescence Rare earth ions

Assessment of the Effect of “3H” Nursing Mode on Negative Emotions and Insomnia in Patients with Enterostomy

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Yangtze Medicine 2023年第1期7卷 18-26页

作者： Xue Wu Jing chen Shihong Deng rongting Liu Department of Gastrointestinal Surgery The First Affiliated Hospital of Yangtze University Jingzhou China

Objective: To explore the clinical significance of “3H” nursing mode in improving negative emotions and insomnia in patients with enterostomy through a prospective cohort study. Methods: Adult patients who underwent enterostomy surgery in our gastroenterology department with negative emotions and insomnia between August 2021 and August 2022 were selected as research objects and randomly divided into “3H” nursing mode group and conventional nursing management group. For the conventional nursing group, routine standard nursing mode was adopted after enterostomy, while extra systematic “3H” nursing service on the basis of conventional nursing management was applied for its counterpart. SAS and SDS scores, Pittsburgh sleep quality index, Barthel index and nursing satisfaction were compared between the two groups. Results: SAS and SDS scores, Pittsburgh sleep quality index, Barthel index and nursing satisfaction of “3H” nursing mode group were evidently better than those of conventional nursing management group, and the difference was significant (P Conclusion: The “3H” nursing mode can effectively improve negative emotions of patients with enterostomy, such as anxiety and depression, improve their sleep quality and self-care ability in daily life, and play an important role in building a harmonious relationship between doctors and patients, nurses and patients, which is worthy of clinical application.

关键词： “3H” Mode Enterostomy Anxiety Depression Insomnia Nursing

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基于正交实验的带式输送机落料降尘装置研究

煤炭技术 2024年第4期43卷 270-274页

作者：李鹏雷琳陶奕淳陈婉毅黄荣廷李世航桂长庚耿凡汤国伟神东洗选中心哈拉沟选煤厂陕西榆林719300 中国矿业大学安全工程学院江苏徐州221116 中国矿业大学江苏省煤基温室气体减排与资源化利用重点实验室江苏徐州221008 中国矿业大学低碳能源与动力工程学院江苏徐州221008 中国矿业大学化工学院江苏徐州221116

针对选煤厂带式输送机落料扬尘的问题,通过改造落料口,提出一种带式输送机落料降尘装置,并对其结构参数进行了优化设计。采用数值模拟及四因素五水平正交试验方法研究了粉尘在落料降尘装置中的运移规律,分析了外圆柱直径、排风管直径、... 详细信息

针对选煤厂带式输送机落料扬尘的问题,通过改造落料口,提出一种带式输送机落料降尘装置,并对其结构参数进行了优化设计。采用数值模拟及四因素五水平正交试验方法研究了粉尘在落料降尘装置中的运移规律,分析了外圆柱直径、排风管直径、内置引风筒插入深度和出风口平均风速对落料扬尘抑制效果的影响;并基于陕西某选煤厂落料扬尘实测粒径分布特征,优化了落料降尘装置的结构尺寸。研究结果表明:实验条件下落料降尘装置的最优结构参数组合为外圆柱直径φ2400 mm,排风管直径与外圆柱直径之比0.4,内置引风筒插入深度600 mm,出风口平均风速为5 m/s。该参数组合下,落料降尘装置的总抑尘率可达73.18%,对PM_(10)的抑尘效率为44.27%,对PM_(2.5)的抑尘效率为43.06%。

关键词：落料降尘正交试验 DPM模型装置优化

木质生物质化学组分的碳释放产物特征和反硝化利用程度

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化工学报 2023年第3期74卷 1332-1342页

作者：祖凌鑫胡荣庭李鑫陈余道陈广林桂林理工大学环境科学与工程学院广西桂林541006 桂林理工大学岩溶区水污染控制与用水安全保障协同创新中心广西桂林541004 中国能源建设集团广西电力设计研究院有限公司广西南宁530000

木质生物质具有复杂的化学组分和结构,用作硝酸盐污染治理的碳源时,常出现反硝化速率缓慢和有机物残留。选择碎木作为原料,采用化学法逐级去除主要组分木质素(RL)和半纤维素(AF),获取的组分进行碳释放,释放溶液用于反硝化,拟合了碳释放... 详细信息

木质生物质具有复杂的化学组分和结构,用作硝酸盐污染治理的碳源时,常出现反硝化速率缓慢和有机物残留。选择碎木作为原料,采用化学法逐级去除主要组分木质素(RL)和半纤维素(AF),获取的组分进行碳释放,释放溶液用于反硝化,拟合了碳释放动力学特征,测定了碳释放和反硝化产物的碳、氮类指标和光谱特征值。结果表明,碎木去除木质素后在1732和1251 cm^(-1)处的红外吸收峰消失。RL和AF的释碳速率分别为天然碎木(NW)的1.8倍和1.2倍,NW的速率为0.11 mg·g^(-1)·d^(-1)。碳释放过程符合二级反应动力学(相关系数R2>0.90)和Ritger-Peppas动力学(R2>0.98)特征。碳释放产物可被反硝化利用的效率为26.5%~49.7%,其中NW组最低,去除硝酸盐的碳氮比为1.0~1.5,残留有机物的腐殖化程度较低,主要为类酪氨酸。

关键词：污染生物质动力学反硝化化学组分碳释放

木质碳源释碳能力的优化及其对地下水生物反硝化的强化效果

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环境工程学报 2022年第1期16卷 154-163页

作者：陈广林胡荣庭祖凌鑫陈余道曾孟江桂林理工大学环境科学与工程学院桂林541006

木质生物质碳源适用于防控农村地下水硝酸盐污染,但存在因释碳能力差而导致反硝化效率低的问题。为此,采用氢氧化钙和过氧乙酸对碎木进行了处理,测定了处理后碎木还原糖产量和化学组分,验证了处理碎木在作为碳源时的反硝化强化效能。结... 详细信息

木质生物质碳源适用于防控农村地下水硝酸盐污染,但存在因释碳能力差而导致反硝化效率低的问题。为此,采用氢氧化钙和过氧乙酸对碎木进行了处理,测定了处理后碎木还原糖产量和化学组分,验证了处理碎木在作为碳源时的反硝化强化效能。结果表明:0.1~1 mm的未处理碎木,其还原糖产量为13.9 mg·g^(−1);经氢氧化钙处理后,其还原糖产量可提升至未处理碎木的8.0倍;在氢氧化钙处理的基础上再用过氧乙酸进行处理后,其还原糖产量可提升至未处理碎木的43.4倍,并能够通过改变处理条件而控制提升倍数;处理后碎木碳源的木质素含量与还原糖产量呈显著的线性负相关,相关系数大于0.98;在提高8.0倍还原糖产量的碎木碳源条件下,生物反硝化速率达到1.7 mg·(g·d)^(−1),是未处理碎木碳源的4.3倍;碎木碳源的还原糖产量提高43.4倍后,反硝化速率并未进一步得到提高,还导致了有机物和氨氮的污染。

关键词：农村污染硝酸盐反硝化木质碳源还原糖

Ji Desheng Snake Pills Combined with Hypertonic Glucose External Application in the Treatment of Stage III and IV Pressure Injuries

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Yangtze Medicine 2021年第2期5卷 117-124页

作者： rongting Liu Cong Zhang Jing Zeng Xue Wu Shihong Deng Jing chen Department of Gastrointestinal Surgery The First Affiliated Hospital of Yangtze University Jingzhou China Department of Cardio-Thoracic Surgery The First Affiliated Hospital of Yangtze University Jingzhou China Department of Orthopaedic Surgery The First Affiliated Hospital of Yangtze University Jingzhou China

Background: As a common surgical disease, pressure injury has become a long-standing problem in clinical treatment and nursing process. This research was conducted to explore the feasibility of Ji Desheng Snake Pills combined with hypertonic glucose external application in the treatment of stage III and IV pressure injuries. Methods: Patients with stage III and IV pressure injuries, who received treatment in our hospital between December 2018 and December 2019 were selected and divided into experimental group, conventional treatment group, and control group, 30 cases for each. The three groups received Ji Desheng Snake Pills combined with hypertonic glucose external application, moist dressing external application and surgical dressing change, respectively. The safety, therapeutic effect and cost benefit of the three treatment methods were compared. Results: There were no adverse reactions in the three groups of patients. The PUSH scores of the experimental group and the conventional treatment group were significantly lower than that of the control group on the 14th, 21th, and 28th days, and the result was statistically significant (p 0.05). The wound healing rates of the experimental group (70.14 ± 8.27%) and the conventional treatment group (73.99 ± 7.15%) were significantly higher than that of the control group (43.25 ± 8.53%) on the 28th day, with statistical significance (p 0.05). The total treatment costs of the three groups were 569.73 ± 78.12 yuan, 1043.40 ± 135.31 yuan, and 186.47 ± 30.29 yuan. The cost of the conventional treatment group was the highest, followed by the experimental group, and the control group was the lowest. The result was statistically significant (p < 0

关键词： Ji Desheng Snake Pills Hypertonic Glucose Pressure Ulcer Pressure Ulcer Scale for Healing Tool

Application of Nursing Risk Management in Nursing of Severe Peptic Ulcer Bleeding

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Yangtze Medicine 2021年第3期5卷 226-234页

作者： Jing chen rongting Liu Xue Wu Zhiqin Zhu Rong He Fen Yang Shihong Deng Department of Gastrointestinal Surgery The First Affiliated Hospital of Yangtze University Jingzhou China Department of Gastroenterology The First Affiliated Hospital of Yangtze University Jingzhou China

Objective: To assess and compare the clinical application value of nursing risk management in the diagnosis and treatment of severe peptic ulcer bleeding. Methods: A total of 70 patients with severe peptic ulcer bleeding were selected as the research objects, randomly divided into observation group and control group, 35 cases for each. The nursing risk management and conventional nursing management were implemented for the two groups, respectively. The success rate of hemostasis, average length of stay, cure rate, complication rate, dyspnea rate, nursing dispute rate, SAS score, and SDS score were compared between the two groups. Patients’ satisfaction with nursing quality was also compared. Results: After the implementation of two different nursing management methods, all the above-mentioned metrics were better in the observation group than in the control group, and the differences were statistically significant (P Conclusion: The application of nursing risk management in the nursing intervention process of patients with severe peptic ulcer bleeding can effectively reduce the probability of nursing risk events, increase the cure rate, shorten the patient’s hospital stay, but also improve the patients’ psychological state and increase the patient’s satisfaction with nursing quality, which is worth clinical promotion.

关键词： Risk Management Peptic Ulcer Upper Gastrointestinal Bleeding Nursing

基于顾客自我调整导向的差异化服务补救策略研究

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南开管理评论 2008年第4期11卷 49-56页

作者：陈可涂荣庭对外经济贸易大学国际商学院营销系讲师北京大学光华管理学院市场营销系助理教授

已有的服务补救研究认为服务补救应该和服务失败匹配,没有深入探讨顾客心理差异对补救效果的影响。本文提出服务补救应和顾客特征相匹配,从"自我调整导向"角度区分顾客的心理特征,研究顾客的个体差异对服务补救效果的影响。服务补救方... 详细信息

已有的服务补救研究认为服务补救应该和服务失败匹配,没有深入探讨顾客心理差异对补救效果的影响。本文提出服务补救应和顾客特征相匹配,从"自我调整导向"角度区分顾客的心理特征,研究顾客的个体差异对服务补救效果的影响。服务补救方式被区分为"多获利"型和"少损失"型两类;顾客的自我调整导向有"趋利"和"避害"之分。本文选取餐馆行业,采用实验方法考察顾客的自我调整导向与补救努力的交互作用对顾客感知的补救绩效和补救满意的影响。通过多因素协方差分析研究发现,当补救努力与顾客的自我调整导向一致时,顾客的感知补救绩效更高,对补救更加满意;对于"趋利"导向的顾客,"多获利"型补救方式效果更好;对于"避害"导向的顾客,"少损失"型补救方式更加有效。

关键词：自我调整导向服务补救顾客满意