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光的非视觉生物效应评价方法及其质量评估模型的构建

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照明工程学报 2024年第3期35卷 1-15页

作者：侯丹丹罗明郝洛西王久存林燕丹复旦大学信息科学与工程学院光源与照明工程系上海200433 复旦大学人类表型组研究院上海201203 复旦大学生命科学学院上海200433 浙江大学光电科学与工程学院浙江杭州310007 同济大学建筑与城市规划学院上海200082 复旦大学电光源研究所上海200433 复旦大学工程与应用技术研究院超越照明研究所上海200433

为提高光的非视觉生物效应研究方法选取提供科学依据,本研究采用文献分析法搜集筛选有效文献240篇对光的非视觉生物效应相关的认知/注意力水平、警觉度、情绪、睡眠质量、节律相位等5个人体指标的25种评价方法进行比较评估。研究结果:(1... 详细信息

为提高光的非视觉生物效应研究方法选取提供科学依据,本研究采用文献分析法搜集筛选有效文献240篇对光的非视觉生物效应相关的认知/注意力水平、警觉度、情绪、睡眠质量、节律相位等5个人体指标的25种评价方法进行比较评估。研究结果:(1)提出由“方法设计”、“心理学评价特征量”和“方法在光环境研究中适用性”三个维度的14个方法质量评估指标组成的方法质量评估模型;(2)构建适用于综合光环境研究的非视觉生物效应评价方法质量评估模型;(3)提出不同光环境特征量化分析方法。光的非视觉生物效应评价方法质量评估模型的建立可以为不同类型的光环境研究提供方法选取的依据和推荐,从而为光环境人因工程学研究的方法论提供理论基础。

关键词：非视觉生物效应认知水平睡眠质量信效度适用度

Facile synthesis of graphene via reduction of graphene oxide by artemisinin in ethanol

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Journal of Materiomics 2018年第3期4卷 256-265页

作者： dandan hou Qinfu Liu Xianshuai Wang Ying Quan Zhichuan Qiao Li Yu Shuli Ding School of Geoscience and Surveying Engineering China University of Mining&TechnologyBeijing 100083China Key Laboratory of Resource Survey and Research of Hebei Province Hebei University of EngineeringHandan 056038China

The preparation of reduced graphene oxide(RGO)by chemical reduction of graphene oxide(GO)usually involves highly toxic reducing agents which are harmful to the environment and human *** this paper,a mediated facile and relative green approach for the preparation of RGO in ethanol using artemisinin as a reducing agent is reported for the first *** morphology and de-oxidation efficiency of the obtained RGO were characterized by transmission electron microscope(TEM),atomic force microscope(AFM),and X-ray photoelectron spectroscopy(XPS).The results showed that artemisinin can effectively reduce GO into few-layered RGO with a high carbon to oxygen ratio(11.7).The mechanism for elimination of oxygen-containing functional groups decorated on GO nanosheets by artemisinin was *** important features of relatively environmentally friendly and facile operation procedures endow this approach with great promise in the mass production of RGO and various graphene-based materials,especially for biomaterials.

关键词： Nanostructures Green reduction Graphene oxide Artemisinin

新生儿早期吸吮指导对母乳喂养行为及乳房并发症的影响

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国际医药卫生导报 2024年第20期30卷 3471-3475页

作者：刘静刘晶张静侯丹丹刘英洁王艳霞西北妇女儿童医院产房西安710061 西北妇女儿童医院产科西安710061

目的探讨新生儿早期吸吮指导对母乳喂养行为及乳房并发症的影响。方法前瞻性选取2022年1月至2023年1月于西北妇女儿童医院顺利分娩并进行母乳喂养的产妇194例作为研究对象,通过随机数字表法分为对照组(97例)和观察组(97例)。对照组产妇... 详细信息

目的探讨新生儿早期吸吮指导对母乳喂养行为及乳房并发症的影响。方法前瞻性选取2022年1月至2023年1月于西北妇女儿童医院顺利分娩并进行母乳喂养的产妇194例作为研究对象,通过随机数字表法分为对照组(97例)和观察组(97例)。对照组产妇年龄(29.82±2.56)岁,孕周(39.66±0.47)周,初产妇74例,经产妇23例;观察组产妇年龄(30.20±2.78)岁,孕周(39.15±0.52)周,初产妇61例,经产妇36例。对照组产妇实施常规护理,观察组产妇在对照组基础上由助产士实施新生儿早期吸吮指导。两组均干预至产妇出院,并随访至产后6个月。比较两组产妇泌乳情况(首次泌乳时间、出院前乳汁充足情况)、母乳喂养率、母乳喂养效能[母乳喂养自我效能测量简表(Breastfeeding Self-Efficacy Scale-Short Form,BSES-SF)]及产后6个月内乳房并发症(乳腺炎、涨乳、乳头损伤)。统计学方法采用t检验、χ^(2)检验。结果观察组产妇首次泌乳时间短于对照组[(1.22±0.31)d比(2.43±0.78)d],乳汁充足率高于对照组[91.75%(89/97)比79.38%(77/97)],两组比较差异均有统计学意义(均P<0.05);观察组产妇产后1个月、2个月、4个月、6个月母乳喂养率分别为93.81%(91/97)、88.66%(86/97)、84.54%(82/97)、78.35%(76/97),均高于对照组[81.44%(79/97)、73.20%(71/97)、64.95%(63/97)、56.70%(55/97)],两组比较差异均有统计学意义(均P<0.05);观察组产妇产后1个月的母乳喂养效能中技能、内心活动维度评分分别为(33.37±3.88)分、(26.63±2.43)分,高于对照组的(29.60±2.46)分、(21.10±2.51)分,两组比较差异均有统计学意义(均P<0.05);观察组乳房并发症发生率低于对照组[9.28%(9/97)比21.65%(21/97)],两组比较差异有统计学意义(P<0.05)。结论新生儿早期吸吮指导能缩短产妇首次泌乳时间并增加泌乳量,有助于提高产妇的母乳喂养率,增强产妇母乳喂养自我效能,同时降低乳房并发症发生率。

关键词：母乳喂养早期吸吮指导泌乳情况自我效能并发症

Extended light absorption and accelerated charge migration in ultrathin twisted carbon nitride nanoplates for efficient solar hydrogen production

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Science China Chemistry 2024年第7期67卷 2215-2223页

作者： Yanmin Zou Shiyao Li dandan Zheng Jianyong Feng Sibo Wang Yidong hou Guigang Zhang State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350108China College of Environment and Safety Engineering Fuzhou UniversityFuzhou 350108China Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

Polymeric carbon nitride has been widely developed as a promising photocatalyst for solar hydrogen production via photocatalytic water ***,pristine carbon nitride prepared by traditional solid-state polymerization usually encounters issues such as rapid carrier recombination and insufficient absorption of visible light below 460 ***,poly(heptazine imide)with a distinctive nanoplate structure was synthesized in a binary molten salt of NaCl–CaCl_(2).The salt template allows the formation of the thin nanoplate structure,which promotes the charge separation and ***,the intercalation of Ca^(2+)ions between the conjugated layers endows the activation of n–π*electron transition due to the distortion of in-plane heptazine ***,the optimized poly(heptazine imide)nanoplates achieve an apparent quantum efficiency of up to 17.3%at 500 nm for photocatalytic hydrogen production from *** work shares new idea for rational control of the optical absorption and charge carrier dynamics of poly(heptazine imide).

关键词： photocatalysis poly heptazine imide nanoplates ion intercalation hydrogen production

New Equations for Describing Contact Area between Tire and Ground

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橡胶工业 2020年第9期67卷 670-676页

作者： CUI Zhibo SU Zhaoqian hou dandan ZHANG Chunsheng WANG Youshan LIU Yuyan WU Jian Key Laboratory of the Ministry of Industry and Information Technology New Energy Conversion and Critical Material Storage TechnologyHarbin Institute of TechnologyHarbin 150001China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China Zhongce Rubber Group Co. LtdHangzhou 310018China

New equations are proposed to describe the shapes and sizes of the contact areas between tire and ground(the contact areas)under the conditions of static load,slip,camber,and *** equations are super ellipse and trigonometric function with four *** indicate that the contact areas under the conditions of static load,slip,camber can be well described by super ellipse,in the most complicated case,fourteen parameters are *** rolling contact area can be reconstructed by the trigonometric function *** and asymmetrical shapes can both be described *** suggested curves will make calculate size of the areas *** described shapes and sizes are in good agreement with the measured,the maximum deviation is only 2.88%.This work will provide an instrument for understanding the contact area and be helpful for analyzing tire and road.

关键词： contact areas contact shape tire and ground super ellipse equation

Prediction of Deformation and Footprint of High-speed Rotating Radial Tires

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橡胶工业 2020年第5期67卷 346-355页

作者： CUI Zhibo CHAI Delong LYU Jiafeng HU Kai ZHANG Chunsheng hou dandan WANG Youshan National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China Zhongce Rubber Group Co. LtdHangzhou 310018China

In this research,the tire deformations due to rotation are divided into three parts:tread,belt and *** deformation is obtained by using a rotating hollow cylinder model,belt expansion is calculated according to the laminated composite shell theory,and a formula of dynamic equilibrium profile is built to investigate carcass ***,a simple method is used to predict the footprint changes caused by tire *** show that a large deformation is occurring at tire shoulder,a smaller one at tread centre,and the shoulder deformations are mostly caused by *** of footprint side edges increase with tire rolling speed *** predicted tread,belt,carcass deformations and footprint changes are in good agreement with finite element analysis *** proposed method and the results will offer a helpful guidance to tire and vehicle engineers.

关键词： radial tire tire deformation tire footprint equilibrium profile finite element analysis

全钢载重子午线轮胎0°带束层散线原因分析及改善措施

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轮胎工业 2024年第8期44卷 495-497页

作者：张明纪雪华吕春军吕微雅侯丹丹徐晓鹏王建兵中策橡胶集团股份有限公司浙江杭州310018

分析全钢载重子午线轮胎0°带束层散线缺陷发生的原因,通过有限元仿真方法模拟轮胎成型过程中胎面辊压对0°带束层帘线末端散线位置橡胶的影响。通过优化成型辊压参数,减小0°带束层帘线末端散线位置橡胶的应变,使轮胎0°带束层散线缺... 详细信息

分析全钢载重子午线轮胎0°带束层散线缺陷发生的原因,通过有限元仿真方法模拟轮胎成型过程中胎面辊压对0°带束层帘线末端散线位置橡胶的影响。通过优化成型辊压参数,减小0°带束层帘线末端散线位置橡胶的应变,使轮胎0°带束层散线缺陷发生率由0.4%降低到0.18%,在提高轮胎质量的同时也创造了良好的经济效益。

关键词：全钢载重子午线轮胎 0°带束层散线胎面辊压工艺优化有限元仿真

Taxonomic dependency and spatial heterogeneity in assembly mechanisms of bacteria across complex coastal waters

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Ecological Processes 2024年第1期13卷 80-97页

作者： Huizhen Yan dandan Lin Gaoke Gu Yujie Huang Xuya Hu Zhenhao Yu Dandi hou Demin Zhang Barbara J.Campbell Kai Wang State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products School of Marine SciencesNingbo University Key Laboratory of Marine Biotechnology of Zhejiang Province School of Marine Sciences Ningbo University Department of Biological Sciences Clemson University

Background Understanding community assembly mechanisms across taxa and space is fundamental for microbial ecology. However, the variability and determinants of assembly processes over taxa and space remain unclear. Here, we investigated taxonomic dependency and spatial heterogeneity in bacterial assembly mechanisms across coastal waters in the East China Sea using neutral and null models with customized visualization *** Overall, bacterial assembly mechanisms varied across broad taxonomic groups(phyla and proteobacterial classes) and space at the regional scale. A determinism–stochasticity balanced mechanism governed total bacterial assembly, while taxonomic dependency existed in assembly mechanisms and ecological processes. Among community ecological features, niche breadth and negative-to-positive cohesion ratio were strongly associated with the determinism-to-stochasticity ratio of bacterial groups. Bacterial assembly mechanisms commonly exhibited spatial heterogeneity, the extent and determinants of which varied across taxonomic groups. Spatial assembly of total bacteria was directly driven by many environmental factors and potential interactions between taxa, but not directly by geographic factors. Overall, the bacterial groups with higher spatial heterogeneity in assembly mechanisms were more related to environmental and/or geographic factors(except Bacteroidetes), while those with lower heterogeneity were more related to ecological *** Our results confirm the pervasiveness of taxonomic dependency and spatial heterogeneity in bacterial assembly, providing a finer understanding about regulation across complex coastal waters.

关键词： Bacterioplankton Assembly mechanism Niche breadth Null model Environmental gradient Biogeography

Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction

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