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腹腔镜下回字型右下入路手术与尾侧联合内侧入路手术治疗右半结肠癌的疗效对比

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长春中医药大学学报 2024年第1期40卷 75-78页

作者：周文广史进淄博一四八医院山东淄博255300

目的探究腹腔镜下回字型右下入路手术与尾侧联合内侧入路手术治疗右半结肠癌的疗效对比。方法选取2019年9月-2022年9月在淄博一四八医院行右半结肠癌手术的患者60例,随机数字表法将其分为对照组和试验组,各30例。对照组行腹腔镜下尾... 详细信息

目的探究腹腔镜下回字型右下入路手术与尾侧联合内侧入路手术治疗右半结肠癌的疗效对比。方法选取2019年9月-2022年9月在淄博一四八医院行右半结肠癌手术的患者60例,随机数字表法将其分为对照组和试验组,各30例。对照组行腹腔镜下尾侧联合内侧入路手术进行治疗;试验组行腹腔镜下回字型右下入路手术治疗。统计2组手术时间、术中出血量、排气时间、排便时间、淋巴结清扫数、住院时间;检测糖类抗原CA19-9(Carbohydrate antigen CA19-9,CA19-9)、糖类抗原CA125(Carbohydrate antigen CA125,CA125)、癌胚抗原(carcinoembryonic antigen,CEA)、MTL、GAS水平;采用VAS评分量表评估患者术后12 h、24 h、48 h不同时间点疼痛程度。结果试验组手术时间、术中出血量、排气时间均低于对照组(P <0.05);与术前比较,2组术后CA19-9、CA125、CEA水平降低,且试验组较对照组降低更明显(P <0.05);与术前比较,2组术后12 h、24 h、48 h的VAS评分水平均降低,且试验组较对照组降低更显著(P <0.05)。与对照组术后相比,试验组术后MTL、GAS水平升高(P <0.05)。结论腹腔镜下回字型右下入路手术治疗效果更为显著,能显著改善患者临床症状,改善肿瘤标志物水平,降低疼痛程度,恢复胃肠功能,降低并发症发生率,临床效果较为显著。

关键词：右半结肠癌腹腔镜回字型右下入路手术尾侧联合内侧入路手术肿瘤标志物

The Estimation of the Higher Heating Value of Biochar by Data-Driven Modeling

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Journal of Renewable Materials 2022年第6期10卷 1555-1574页

作者： Jiefeng Chen Lisha Ding Pengyu Wang Weijin Zhang Jie Li Badr A.Mohamed Jie Chen Songqi Leng Tonggui Liu Lijian Leng wenguang zhou Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education and School of ResourcesEnvironmental&Chemical EngineeringNanchang UniversityNanchangChina School of Energy Science and Engineering Central South UniversityChangshaChina Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore Department of Agricultural Engineering Cairo UniversityGizaEgypt

Biomass is a carbon-neutral renewable energy *** produced from biomass pyrolysis exhibits preferable characteristics and potential for fossil fuel *** time-and cost-saving,it is vital to establish predictive models to predict biochar ***,limited studies focused on the accurate prediction of HHV of biochar by using proximate and ultimate analysis results of various ***,the multi-linear regression(MLR)and the machine learning(ML)models were developed to predict the measured HHV of biochar from the experiment data of this *** detail,52 types of biochars were produced by pyrolysis from rice straw,pig manure,soybean straw,wood sawdust,sewage sludge,Chlorella Vulgaris,and their mixtures at the temperature ranging from 300 to 800℃.The results showed that the co-pyrolysis of the mixed biomass provided an alternative method to increase the yield of biochar *** contents of ash,fixed carbon(FC),and C increased as the incremental pyrolysis temperature for most *** Pearson correlation(r)and relative importance analysis between HHV values and the indicators derived from the proximate and ultimate analysis were carried out,and the measured HHV was used to train and test the MLR and the ML ***,ML algorithms,including gradient boosted regression,random forest,and support vector machine,were also employed to develop more widely applicable models for predicting HHV of biochar from an expanded dataset(total 149 data points,including 97 data collected from the published literature).Results showed HHV had strong correlations(|r|>0.9,p*** ML models showed better performance with test R^(2)around 0.95(random forest)and 0.97–0.98 before and after adding extra data for model construction,*** importance analysis of the ML models showed th

关键词： Biochar higher heating value machine learning prediction proximate analysis ultimate analysis

HOXB4基因表达水平在骨髓增生异常综合征中的临床意义

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实用医学杂志 2024年第3期40卷 321-325页

作者：王怡晨严燕雯宋美慧薛祥俊周文广李玉权齐玲李光华曾祥宗大理大学基础医学院云南大理671000 广州医科大学附属第六医院清远市人民医院消化病研究所广东清远511518 广州医科大学附属第六医院清远市人民医院血液病科广东清远511518

目的探讨HOXB4基因在骨髓增生异常综合征(myelodysplastic syndromes,MDS)患者中的表达情况及其在疾病进展中的临床意义。方法利用实时荧光定量PCR(RT-qPCR)法检测骨髓单个核细胞HOXB4基因的mRNA表达水平,对比49例MDS患者(MDS组)和35例... 详细信息

目的探讨HOXB4基因在骨髓增生异常综合征(myelodysplastic syndromes,MDS)患者中的表达情况及其在疾病进展中的临床意义。方法利用实时荧光定量PCR(RT-qPCR)法检测骨髓单个核细胞HOXB4基因的mRNA表达水平,对比49例MDS患者(MDS组)和35例非恶性血液系统疾病患者(C组)的HOXB4基因的表达差异,并探讨HOXB4的表达水平与MDS疾病特征及临床预后之间的关系。结果MDS组HOXB4基因的表达水平较C组高(P<0.05)。根据HOXB4的中位表达水平分为高表达组和低表达组,高表达组患者初诊时白细胞水平低于低表达组,而伴原始细胞增多的MDS亚型、不良预后分型及白血病转化的患者比例高于低表达组(P<0.05)。结论HOXB4基因的表达水平与MDS患者向急性白血病转化有一定关联性。

关键词：骨髓增生异常综合征 HOXB4 预后白血病转化

Design of advanced porous silver powder with high-sintering activity to improve silicon solar cells

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Nano Research 2024年第4期17卷 3189-3197页

作者： Yongsheng Li Ziwei Chen Rui zhou wenguang Zhao Mu Li Jun Chen Zhongyuan Huang Jian Liu Yuhang Li Maolin Yang Minghan Yu Dong zhou Yuan Lin Feng Pan School of Advanced Materials Peking UniversityShenzhen Graduate SchoolShenzhen 518055China Institute of Advanced Science Facilities Shenzhen 518107China Institute of Zhejiang University-Quzhou Quzhou 324000China Key Laboratory of Photochemistry Institute of ChemistryChinese Academy of SciencesBeijing 100190China Institute of Materials Research(IMR) Tsinghua UniversityTsinghua Shenzhen International Graduate SchoolShenzhen 518055China School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China

Silver(Ag)paste is widely used in semiconductor metallization,especially in silicon solar *** powder is the material with the highest proportion in Ag *** morphology and structure of Ag powder are crucial which determine its characteristics,especially for the sintering *** this work,a simple method was developed to synthesize a type of microcrystalline spherical Ag particles(SP-A)with internal pores and the structural changes and sintering behavior were thoroughly studied by combining ultra-small-angle X-ray scattering(USAXS),small-angle X-ray scattering(SAXS),in-situ heating X-ray diffraction(XRD),focused ion beam(FIB),and thermal analysis *** to the unique internal pores,the grain size of SP-A is smaller,and the coefficient of thermal expansion(CTE)is higher than that of traditional solid Ag *** a result,the sintering activity of SP-A is excellent,which can form a denser sintered body and form silver nanoparticles at the Ag–Si interface to improve silver silicon *** silicon solar cell built with SP-A obtained a low series resistance(Rs)and a high photoelectric conversion efficiency(PCE)of 19.26%.These fill a gap in Ag particle structure research,which is significant for the development of high-performance electronic Ag particles and efficient semiconductor devices.

关键词： silver particles small angle X-ray scattering(SAXS) pore size distribution in-situ heating X-ray diffraction(XRD) sintering silicon solar cells

In situ photocatalytically enhanced thermogalvanic cells for electricity and hydrogen production

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Chinese Journal of Structural Chemistry 2024年第1期43卷 1-2页

作者： Tianhao Li wenguang Tu Zhigang Zou School of Science and Engineering The Chinese University of Hong KongShenzhenGuangdong518172PR China

Converting low-grade thermal energy into electricity through ther-mogalvanic cells offers a promising approach to addressing environ-mental challenges[1].However,thermogalvanic cells face obstacles,due to limited thermopower,connected to differences in solvent-dependent entropy(ΔS)among redox anions and varying concentration ratios(ΔC)between hot and cold sides[2,3].A typical strategy to enhance the thermopower involves the improvement ofΔS of the redox ***-fortunately,ΔC tends to approach zero spontaneously due to the ther-modynamic instability and redox ion ***,the challenge is to maintain significantΔC for both redox ions and unravel the intricate modulation mechanisms[4].

关键词： redox maintain entropy

Path Planning ofMulti-Axis Robotic Arm Based on Improved RRT?

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Computers, Materials and Continua 2024年第1期81卷 1009-1027页

作者： Liang, Juanling Luo, wenguang Qin, Yongxin School of Automation Guangxi University of Science and Technology Liuzhou 545006 China Key Laboratory of AI and Information Processing of Education Department of Guangxi Hechi University Hechi 546300 China

An improved RRT? algorithm, referred to as theAGP-RRT? algorithm, is proposed to address the problems of poor directionality, long generated paths, and slow convergence speed in multi-axis robotic arm path planning. First, an adaptive biased probabilistic sampling strategy is adopted to dynamically adjust the target deviation threshold and optimize the selection of random sampling points and the direction of generating new nodes in order to reduce the search space and improve the search efficiency. Second, a gravitationally adjustable step size strategy is used to guide the search process and dynamically adjust the step-size to accelerate the search speed of the algorithm. Finally, the planning path is processed by pruning, removing redundant points and path smoothing fitting using cubic B-spline curves to improve the flexibility of the robotic arm. Through the six-axis robotic armpath planning simulation experiments on the MATLAB platform, the results show that the AGP-RRT? algorithmreduces 87.34% in terms of the average running time and 40.39% in terms of the average path cost; Meanwhile, under two sets of complex environments A and B, the average running time of the AGP-RRT? algorithm is shortened by 94.56% vs. 95.37%, and the average path cost is reduced by 55.28% vs. 47.82%, which proves the effectiveness of theAGP-RRT? algorithm in improving the efficiency of multi-axis robotic arm path planning. © 2024 The Authors. Published by Tech Science Press.

关键词： MATLAB

黏膜瓣缝合技术联合耳用T管置入在复杂鼻腔泪囊造口术中的应用

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中国耳鼻咽喉颅底外科杂志 2024年第5期30卷 18-22页

作者：张婷薛飞季俊峰程友刘厚军吴明海焦红叶许莉周文光东部战区总医院耳鼻咽喉头颈外科江苏南京210002

目的探讨黏膜瓣缝合技术联合耳用T管置入在复杂鼻腔泪囊造口术中的应用方法与临床效果。方法回顾性分析2016年11月-2022年3月在复杂鼻腔泪囊造口术中采用鼻内镜下黏膜瓣缝合技术联合耳用T管置入治疗鼻泪管阻塞患者26例(31眼)的临床资料... 详细信息

目的探讨黏膜瓣缝合技术联合耳用T管置入在复杂鼻腔泪囊造口术中的应用方法与临床效果。方法回顾性分析2016年11月-2022年3月在复杂鼻腔泪囊造口术中采用鼻内镜下黏膜瓣缝合技术联合耳用T管置入治疗鼻泪管阻塞患者26例(31眼)的临床资料,总结手术方法,观察临床疗效。结果26例(31眼)患者术后随访6~48个月,痊愈率为61.3%(19/31),显效率12.9%(4/31),有效率9.7%(3/31),无效率16.1%(5/31),总有效率83.9%(26/31)。结论在复杂鼻腔泪囊造口术中,采用鼻内镜下黏膜瓣缝合技术联合耳用T管置入,创伤小,疗效确切。术后应定期随访处理,以提高手术疗效。

关键词：鼻内镜鼻腔泪囊造口术泪道阻塞黏膜瓣 T管

Exploring differentiated improvement strategies of cultivated land quality in China

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Frontiers of Agricultural Science and Engineering 2024年第2期11卷 282-291页

作者： wenguang CHEN Xiangbin KONG Yubo LIAO College of Land Science and Technology China Agricultural UniversityBeijing 100193China

Quality is the core feature of cultivated land. In the face of deteriorating cultivated land quality and growing food demand, improving cultivated land quality is a top priority for guaranteeing the sustainable use of resources and national food security. Cultivated land quality in the new era can be considered in four dimensions: suitability, contiguity, resistance and ecological stress. Cultivated land suitability in China shows a decreasing trend from east to west, cultivated land contiguity is high in the north-east and low in the south-west. In terms of cultivated land resistance, the number of strongly and weakly resistant cropping fields is small and spatially clustered. Cultivated land with ecological stress is mainly located in the northern region. Based on the current situation of cultivated land quality and the strategic needs of national high-quality development, China's future goals for improving cultivated land quality include four aspects: promoting the sustainable use of resources,improving the economic benefits of farming, coping with extreme meteorological disasters and meeting the transition of the food *** the backdrop of a volatile international environment and high domestic demand for food, China should guarantee a safe supply of staples, a stable supply of animal feed and a moderate supply of high-nutrient food. In the future, China should create three major food production spaces: highstandard, low-to medium-yield, and marginal cultivated land. China urgently needs to construct three paths to implement the goal of improving cultivated land quality, namely the development of high-standard cultivated land with the core of spatial optimization, resilience enhancement and scale coupling,the transformation of low-to medium-yield cultivated land with the core of obstacle elimination, tenure adjustment, ecological sustainable, and the conservation development of marginal cultivated land with a focus on sustainable use.

关键词： China cultivated land quality differentiated improvement food security

吸收能力与流程创新绩效之间关系的实证研究——基于知识产权风险的调节作用

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南开管理评论 2013年第5期16卷 51-60,89页

作者：周文光西北大学公共管理学院

吸收能力与创新绩效之间的关系是学术界的热点问题,而对于吸收能力与流程创新绩效之间的关系却鲜有研究。本研究基于来自228个样本的数据,使用结构方程模型(SEM),探究吸收能力的四个维度对流程创新绩效的作用机制。研究结果表明,吸收能... 详细信息

吸收能力与创新绩效之间的关系是学术界的热点问题,而对于吸收能力与流程创新绩效之间的关系却鲜有研究。本研究基于来自228个样本的数据,使用结构方程模型(SEM),探究吸收能力的四个维度对流程创新绩效的作用机制。研究结果表明,吸收能力的四个维度(获取能力、消化能力、转化能力与开发能力)与流程创新绩效之间的关系被知识产权风险所调节。这一结论既深化了关于吸收能力与创新绩效之间关系的研究,又为企业提升流程创新绩效、国家加强知识产权保护提供了理论支撑。

关键词：吸收能力流程创新绩效知识产权风险