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Multiple indicators and analytic hierarchy process(AHP)for comprehensive performance evaluation of exhaust hood

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Building Simulation 2022年第6期15卷 1097-1110页

作者： Jing-jing Zhao Ruo-ning Chen Jia-hua Wang xue-yi You Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and EngineeringTianjin UniversityTianjinChina Ningbo FOTILE Kitchen Ware Co. Ltd.NingboChina

Indicators are the basis for judging the working performance of exhaust hood and capture performance are usually used as the only *** evaluation index system including three factors of cooking oil fumes(COF)instantaneous capture,health risk impact and thermal comfort was proposed to assess the comprehensive performance of exhaust hood in the present *** primary capture efficiency(PCE)of formaldehyde,the PCE of particulate matter with the diameter less than or equal to 2.5μm(PM_(2.5)),the incremental lifetime cancer risk(ILCR)of formaldehyde,the ILCR of PM_(2.5)and the predicted mean vote(PMV),which can all be quantified with the aid of computational fluid dynamics(CFD),were selected as the *** the analytic hierarchy process(AHP)method was introduced to perform the comprehensive performance evaluation of exhaust *** performance of two exhaust hood structures(grille and orifice type)with three exhaust rates(3000,4000,and 5000 m^(3)/h)in two cooking zones of a university canteen kitchen were *** result showed that the reduction of ILCR of COF exposure is the most important to the performance of exhaust *** comprehensive performance of orifice exhaust hood with exhaust rate of 4000 and 5000 m^(3)/h are optimal;the orifice exhaust hood with exhaust of 3000 m^(3)/h and grille exhaust hood with exhaust rate of 5000 m^(3)/h are moderate;the grille exhaust hood with exhaust rate of 3000 and 4000 m^(3)/h are ***-making priorities based on comprehensive and individual performance are not exactly the same in the two cooking *** is necessary to use the index system to evaluate the comprehensive performance of exhaust hood that considers the impact on human health and thermal comfort.

关键词： evaluation index system analytic hierarchy process comprehensive performance exhaust hood computational fluid dynamics

Future therapies for pancreatic carcinoma:Insights into cancer precision medicine

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World Journal of Gastroenterology 2022年第22期28卷 2523-2526页

作者： Qiu-Yu Jiang Zhi-xue Chen Si Zhang Ru-yi xue Department of Gastroenterology and Hepatology Zhongshan HospitalShanghai Institute of Liver DiseaseFudan UniversityShanghai 200032China NHC Key Laboratory of Glycoconjugate Research Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesShanghai Medical CollegeFudan UniversityShanghai 200032China

Pancreatic carcinoma(PC)has one of the highest rates of cancer-related death *** for surgery,adjuvant chemotherapy,chemoradiotherapy,and immunotherapy have shown various efficacies depending on the stage of the *** read the review“Current and emerging therapeutic strategies in pancreatic cancer:Challenges and opportunities”and offer some opinions that may improve its precision and *** review presents a map of appropriate therapies for PC at different *** on the clinical trial outcomes mentioned in the review,we evaluated the potential therapeutic options for PC and helped explain the contradictory efficacy between different programmed cell death protein 1/programmed cell death ligand 1 clinical trials,which may have resulted from the unique features of *** R0 resection and adjuvant chemotherapy are still the gold standards for PC,new modalities,with or without clinical validation,are needed to establish more specific and precise treatments for PC.

关键词： Pancreatic carcinoma Immunotherapy Chemotherapy Radiochemotherapy Future therapies

Ghrelin alleviates 6-hydroxydopamine-induced neurotoxicity in SH-SY5Y cells

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Neural Regeneration Research 2022年第1期17卷 170-177页

作者： Xin He Wei Yuan Chun-Qing Yang Lu Zhu Fei Liu Juan Feng yi-xue xue Department of Neurobiology School of Life SciencesChina Medical UniversityShenyangLiaoning ProvinceChina Department of Neurology Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina Department of Orthopedics First Hospital of China Medical UniversityShenyangLiaoning ProvinceChina Department of Neurosurgery Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina

Ghrelin is a neuropeptide that has various physiological functions and has been demonstrated to be neuroprotective in a number of neurological disease ***,the underlying mechanisms of ghrelin in Parkinson’s disease remain largely *** current study aimed to study the effects of ghrelin in a 6-hydroxydopamine(6-OHDA)-induced Parkinson’s disease model and evaluate the potential underlying *** the present study,we treated an SH-SY5 Y cell model with 6-OHDA,and observed that pretreatment with different concentrations of ghrelin(1,10,and 100 nM)for 30 minutes relieved the neurotoxic effects of 6-OHDA,as revealed by Cell Counting Kit-8 and Annexin V/propidium iodide(PI)apoptosis *** transcription quantitative polymerase chain reaction and western blot assay results demonstrated that 6-OHDA treatment upregulatedα-synuclein and lincRNA-p21 and downregulated TG-interacting factor 1(TGIF1),which was predicted as a potential transcription regulator of the gene encodingα-synuclein(SNCA).Ghrelin pretreatment was able to reverse the trends caused by *** Annexin V/PI apoptosis assay results revealed that inhibiting eitherα-synuclein or lincRNA-p21 expression with small interfering RNA(siRNA)relieved 6-OHDA-induced cell ***,inhibiting lincRNA-p21 also partially upregulated *** retrieving information from a bioinformatics database and performing both double luciferase and RNA immunoprecipitation assays,we found that lincRNA-p21 and TGIF1 were able to form a double-stranded RNA-binding protein Staufen homolog 1(STAU1)binding site and further activate the STAU1-mediated mRNA decay *** addition,TGIF1 was able to transcriptionally regulateα-synuclein expression by binding to the promoter of *** Annexin V/PI apoptosis assay results showed that either knockdown of TGIF1 or overexpression of lincRNA-p21 notably abolished the neuroprotective effects of ghrelin against 6-OHDA-induced ***

关键词： 6-hydroxydopamine apoptosis ghrelin lincRNA-p21 neuropeptide neurotoxicity Parkinson’s disease STAU1-mediated mRNA decay TGIF1 α-synuclein

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基于实时视频流的3D人体姿势和形状估计

计算机技术与发展 2024年第4期34卷 42-47页

作者：朱越黄海于罗学义西南交通大学计算机与人工智能学院四川成都611756 消防救援局昆明训练总队云南昆明650217

为满足元宇宙、游戏及虚拟现实等应用场景中对实时视频流3D人体姿势和形状估计准确性和真实性的要求,提出了一种基于时间注意力机制的3D人体姿势和形状估计方法。首先,提取图像特征,并将其输入运动连续注意力模块以更好地校准需要注意... 详细信息

为满足元宇宙、游戏及虚拟现实等应用场景中对实时视频流3D人体姿势和形状估计准确性和真实性的要求,提出了一种基于时间注意力机制的3D人体姿势和形状估计方法。首先,提取图像特征,并将其输入运动连续注意力模块以更好地校准需要注意的时间序列范围;随后,使用实时特征注意力集成模块以有效地组合当前帧与过去帧的特征表示;最后,通过人体参数回归网络得到最终结果,并使用基于图卷积的生成对抗网络判断模型是否来自真实的人体运动数据。相较于之前基于实时视频流的方法,在主流数据集上加速度误差平均减少了30%的同时,网络参数与计算量减少了65%,在实际测试中实现了每秒55~60帧的3D人体姿态和形状估计速度,为元宇宙、游戏及虚拟现实等应用场景提供更好的用户体验和更高的应用价值。

关键词：三维人体重建 SMPL模型实时特征注意力集成图卷积神经网络机器学习

二甲双胍联合炔雌醇环丙孕酮片对多囊卵巢综合征患者血清miR-124及Th1/Th2细胞因子平衡偏移的影响

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广东医学 2024年第4期45卷 499-504页

作者：胡艳梅王洁伍学一攀枝花市妇幼保健院生殖医学中心四川攀枝花617000

目的探讨二甲双胍联合炔雌醇环丙孕酮片对多囊卵巢综合征(polycystic ovary syndrome,PCOS)患者血清miR-124水平及Th1/Th2细胞因子平衡偏移的影响。方法纳入2022年1月至2023年2月在攀枝花市妇幼保健院接受治疗的200例PCOS患者,分为观察... 详细信息

目的探讨二甲双胍联合炔雌醇环丙孕酮片对多囊卵巢综合征(polycystic ovary syndrome,PCOS)患者血清miR-124水平及Th1/Th2细胞因子平衡偏移的影响。方法纳入2022年1月至2023年2月在攀枝花市妇幼保健院接受治疗的200例PCOS患者,分为观察组(n=100)和对照组(n=100);观察组给予二甲双胍联合炔雌醇环丙孕酮片治疗,对照组给予炔雌醇环丙孕酮片治疗,连续治疗3个月;收集两组患者临床资料,治疗前后血脂[总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白(LDL-C)]水平、空腹血糖(fasting plasma glucose,FPG)、空腹血清胰岛素(fins insulin,FINS)水平及胰岛素抵抗指数(HOMA-IR);检测血清miR-124、白细胞介素(IL)-2、IL-6、γ干扰素(interferon-γ,INF-γ)。结果治疗后观察组TG、TC、LDL-C水平显著降低(P0.05),治疗后观察组FPG、FINS、HOMA-IR水平显著降低(P0.05);治疗后观察组IL-6、INF-γ水平低于治疗前,IL-2、miR-124水平高于治疗前(P<0.05);治疗后观察组IL-6、INF-γ水平低于对照组,IL-2、miR-124水平高于对照组,差异有统计学意义(P<0.05)。结论二甲双胍联合炔雌醇环丙孕酮片能够明显改善PCOS患者胰岛素抵抗,调节糖脂代谢,改善Th1/Th2细胞因子平衡偏移状态。

关键词：二甲双胍多囊卵巢综合征 miR-124 Th1/Th2平衡

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基于准Z源变换的无线充电系统电磁屏蔽研究

电工电气 2024年第4期 10-16页

作者：张学毅张赛易文静任立权李斌湖南工业大学电气与信息工程学院湖南株洲412000

在无线电能传输系统中,线圈结构参数对系统的传输效率以及漏磁影响很大,且对于传统桥式逆变电路,其提供的电压只能是母线电压以下,极大限制了输出功率能力以及调压能力。以有源磁屏蔽结构为基础,提出了一种基于准Z源逆变的有源屏蔽线圈... 详细信息

在无线电能传输系统中,线圈结构参数对系统的传输效率以及漏磁影响很大,且对于传统桥式逆变电路,其提供的电压只能是母线电压以下,极大限制了输出功率能力以及调压能力。以有源磁屏蔽结构为基础,提出了一种基于准Z源逆变的有源屏蔽线圈结构,通过多目标粒子群算法分析了在低漏磁和高传输效率的双目标下的线圈结构参数;根据得到的线圈参数,研制了一套基于准Z源逆变的有源屏蔽线圈结构的无线充电系统。经MATLAB/Simulink仿真表明,在输出功率恒定为3.7 kW时,系统传输效率能够达到98.5%,优化后的漏磁相比于优化前下降了55.1%。

关键词：电动汽车准Z源电磁屏蔽多目标粒子群算法

Facile preparation of Nb_(2)O_(5) microspheres and their excellent electrochemical performance in aqueous zinc-ion hybrid supercapacitors

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Rare Metals 2022年第9期41卷 3129-3141页

作者： Si-Jia Zhang Han Chen yi-xue Xu Chang-Sheng An Kai-Xiong Xiang School of Materials and Advanced Manufacturing Liling Ceramic InstituteHunan University of TechnologyZhuzhou412007China Hunan Institute of Science and Technology Yueyang414000China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha410022China

The aqueous solution-based zinc-ion hybrid supercapacitors(ZHSCs)have attracted immense attention as they are characterized by high power and energy *** materials with high performance should be developed for ZHSCs to resolve power imbalances between capacitor-and battery-type electrode *** address this issue,Nb_(2)O_(5) microspheres(with the structure like sweet dumplings with exposed stuffing)were produced following a hydrothermal process which was followed by a high-temperature calcination *** specific capacity of the as-synthesized Nb_(2)O_(5) microspheres was up to 324 F·g^(-1) when the current density was 0.1 A·g^(-1),and the long-term capacity retention was 85%at the end of 5000 *** results revealed that the nanospheres could be used as battery-type electrode materials for the fabrication of ***_(2)O_(5)//AC ZHSCs were fabricated with Nb_(2)O_(5) microspheres as the negative electrode materials,and activated carbon(AC)was used as the positive electrode *** a result,a specific capacity of 108 F·g^(-1) was achieved when the current density was 0.1 A·g^(-1).The power density was high(8020 W·kg^(-1))at 28 Wh·kg^(-1),and the energy density was high(60 Wh·kg^(-1))at 100 W·kg^(-1).The structurally novel Nb_(2)O_(5) microspheres can be potentially used for the development of the next-generation ZHSCs that exhibit excellent performance.

关键词： Hydrothermal Microspheres Nb_(2)O_(5) Zincion hybrid supercapacitors(ZHSCs) Fast kinetics

Phase-Field Simulation of Sintering Process:A Review

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1165-1204页

作者： Ming xue Min yi State Key Laboratory ofMechanics and Control forAerospace Structures&Institute for Frontier Science&Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education&College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics(NUAA)Nanjing210016China

Sintering,a well-established technique in powder metallurgy,plays a critical role in the processing of high melting point materials.A comprehensive understanding of structural changes during the sintering process is essential for effective product *** phase-field method stands out for its unique ability to simulate these structural *** its widespread application,there is a notable absence of literature reviews focused on its usage in sintering ***,this paper addresses this gap by reviewing the latest advancements in phase-field sintering models,covering approaches based on energy,grand potential,and entropy *** characteristics of various models are extensively discussed,with a specific emphasis on energy-based models incorporating considerations such as interface energy anisotropy,tensor-form diffusion mechanisms,and various forms of rigid particle motion during ***,the paper offers a concise summary of phase-field sintering models that integrate with other physical fields,including stress/strain fields,viscous flow,temperature field,and external electric *** conclusion,the paper provides a succinct overview of the entire content and delineates potential avenues for future research.

关键词： Phase-field model review sintering additive manufacturing

Some Convergence Properties for Weighted Sums of Martingale Difference Random Vectors

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Acta Mathematica Sinica,English Series 2024年第4期40卷 1127-1142页

作者： yi WU xue Jun WANG School of Big Data and Artificial Intelligence Chizhou UniversityChizhou 247000P.R.China School of Big Data and Statistics Anhui UniversityHefei 230601P.R.China

Let{X_(ni),F_(ni);1≤i≤n,n≥1}be an array of R^(d)martingale difference random vectors and{A_(ni),1≤i≤n,n≥1}be an array of m×d matrices of real *** this paper,the Marcinkiewicz-Zygmund type weak law of large numb... 详细信息

关键词： Martingale difference random vectors weighted sums Marcinkiewicz–Zygmund type weak law of large numbers complete convergence strong law of large numbers multivariate simple linear regression model