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Residential building performance analysis at near extreme weather conditions in Hong Kong through a thermal-comfort-based strategy

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Building Simulation 2023年第1期16卷 13-25页

作者： K.f.fong c.K.Lee Kevin Ka-lun Lau Edward yan Yung Ng Division of Building Science and Technology College of EngineeringCity University of Hong KongHong KongChina Department of civil Engineering and Natural Resources Lulea University of TechnologySweden School of Architecture The Chinese University of Hong KongHong KongChina

The precise building performance assessment of residential housings in subtropical regions is usually more difficult than that for the commercial premises due to the much more complicated behavior of the occupants with regard to the change in indoor *** conventional use of a fixed schedule for window opening,clothing insulation and cooling equipment operation cannot reflect the real situation when the occupants respond to the change in thermal comfort,thus affecting the appropriateness of the assessment *** rectify the situation,a new modeling strategy in which the modification of the various operation schedules was based on the calculated thermal comfort(Tc),was developed in this *** this new Tc-based strategy,the realistic building performances under different cooling provision scenarios applied to a high-rise residential building under the near extreme weather conditions were investigated and *** was found that sole provision of ventilation fans could not meet the zone thermal comfort by over 68%of the time,and air-conditioning was *** optimal use of ventilation fans for cooling could only help reduce the total cooling energy demand by less than 12%at best which could only be realistically evaluated by adopting the present *** studies were conducted which revealed that some design factors could offer opportunities for reducing the total cooling energy under the near extreme weather conditions.

关键词： predicted mean vote thermal comfort ventilation potential building performance simulation residential housings

我国产业链供应链安全发展的逻辑、障碍与路径

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中国流通经济 2025年第1期39卷 76-85页

作者：刘伟华袁超伦黄艳娇天津大学管理与经济学部天津市300072

党的二十届三中全会强调要提升产业链供应链韧性和健全安全制度,打造自主可控、安全可靠的产业链供应链。在此背景下,研究我国产业链供应链安全发展的逻辑、障碍与路径,可以为实现我国产业链供应链安全发展提供重要的理论基础。产业链... 详细信息

党的二十届三中全会强调要提升产业链供应链韧性和健全安全制度,打造自主可控、安全可靠的产业链供应链。在此背景下,研究我国产业链供应链安全发展的逻辑、障碍与路径,可以为实现我国产业链供应链安全发展提供重要的理论基础。产业链供应链安全发展的逻辑,是实现产业链供应链安全需要确保主体要素和结构要素的安全。通过对大宗原料、规模化制造、高新技术、生产性服务四大重点产业的八家典型企业的多案例研究,基于主体要素和结构要素的安全逻辑,识别我国重点产业的产业链供应链安全障碍。进而构建产业链供应链安全发展的路径,包括维护路径和阶跃路径两个维度。维护路径强调从主体要素和结构要素两个视角展开。阶跃路径强调以社会引领、技术驱动、制度辅助为核心要素。为实现维护路径和阶跃路径的有效实施,对于维护路径,需要启动我国重要产业链供应链的韧性战略设计和完善本土产业链供应链安全预警机制;对于阶跃路径,需要通过产业集群和搭建产业信息服务体系支持本土企业深度参与全球产业链供应链重构,通过改革科技创新体制加快突破产业链供应链的关键核心技术,通过构建全国统一大市场推动产业链供应链增加需求活力。

关键词：产业链供应链安全发展典型障碍维护路径阶跃路径

clickable,Oxidation-Responsive and Enzyme-Degradable Polypeptide:Synthesis,characterization and Side chain Modification

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chinese Journal of Polymer Science 2022年第11期40卷 1360-1368页

作者： yan-Zhi Lu An-Qi Gu Tian-lun Shen Ji-Hong Sun Jun Ling Ministry of Education Key Laboratory of Macromolecular Synthesis and functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China Department of Radiology Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China

Modifications at polypeptide side chains have been found to affect conformational and properties,which is a vital strategy to prepare functional *** contribution describes the synthesis of homo and co-polypeptides containing unsaturated bonds and thioether moieties,poly(S-allylcysteine)(PAc).The pendant vinyl groups provide an active binding site which are able to be further modified with cysteine by thiol-ene click *** sulfoxide from thioether oxidation bestows the polypeptide water solubility and enzymatic catalytic *** selfassembly micelles of PEG-b-PAc are ruptured along with oxidation to release the Nile red ***,poly(S-allyl-cysteine sulfoxide),***,is the oxidation product of PAc which undergoes side chain cleavage catalyzed by alliinase *** polypeptides are biocompatible as confirmed by cell viability assays and may find applications in drug delivery,biosensing and nanoreactor.

关键词： Polypeptides Ring-opening polymerization Stimuli-responsive polymers N-carboxy anhydrides N-phenoxycarbonylα-amino acids

Removal of formaldehyde over Mn_xce_(1- x)O_2 catalysts: Thermal catalytic oxidation versus ozone catalytic oxidation

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Journal of Environmental Sciences 2014年第12期26卷 2546-2553页

作者： Jia Wei Li Kuan lun Pan Sheng Jen Yu Shaw Yi yan Moo Been chang Graduate Institute of Environmental Engineering National Central University Industrial Technology Research Institute

Mnxce1- xO2（x： 0.3–0.9） prepared by Pechini method was used as a catalyst for the thermal catalytic oxidation of formaldehyde（HcHO）. At x = 0.3 and 0.5, most of the manganese was incorporated in the fluorite structure of ce O2 to form a solid solution. The catalytic activity was best at x = 0.5, at which the temperature of 100% removal rate is the lowest（270°c）. The temperature for 100% removal of HcHO oxidation is reduced by approximately 40°c by loading 5 wt.% cu Oxinto Mn0.5ce0.5O2. With ozone catalytic oxidation, HcHO（61 ppm） in gas stream was completely oxidized by adding 506 ppm O3 over Mn0.5ce0.5O2 catalyst with a GHSV（gas hourly space velocity） of 10,000 hr-1at 25°c. The effect of the molar ratio of O3 to HcHO was also investigated. As O3/HcHO ratio was increased from 3 to 8, the removal efficiency of HcHO was increased from 83.3% to 100%. With O3/HcHO ratio of 8, the mineralization efficiency of HcHO to cO2 was 86.1%. At 25°c, the p-type oxide semiconductor（Mn0.5ce0.5O2） exhibited an excellent ozone decomposition efficiency of 99.2%,which significantly exceeded that of n-type oxide semiconductors such as Ti O2, which had a low ozone decomposition efficiency（9.81%）. At a GHSV of 10,000 hr-1, [O3]/[HcHO] = 3 and temperature of 25°c, a high HcHO removal efficiency（≥ 81.2%） was maintained throughout the durability test of 80 hr, indicating the long-term stability of the catalyst for HcHO removal.

关键词： formaldehyde Volatile organic compounds Indoor air pollutant Thermal catalytic oxidation Ozone catalytic oxidation

Interface enhanced well-dispersed co9S8 nanocrystals as an efficient polysulfide host in lithium–sulfur batteries

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Journal of Energy chemistry 2020年第9期29卷 109-115,I0004页

作者： Xue Liu Qiu He Hong Yuan chong yan yan Zhao Xu Xu Jia-Qi Huang Yu-lun chueh Qiang Zhang Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070HubeiChina Beijing Key Laboratory of Green chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Department of Materials Science and Engineering Taiwan Tsinghua UniversityHsinchu 30013TaiwanChina

The high specific capacity and energy density of lithium-sulfur batteries have attracted strong considerations on their fundamental mechanism and energy ***,polysulfide shuttle is still the key issue that impedes the development of Li-S *** nanocrystal hosts for polysulfide immobilization and conversion is a promising *** this contribution,we have investigated well-dispersed co9S8 nanocrystals grown on graphene oxide(GO)nanosheets with different degrees of dispersion as cathode host materials for Li-S *** co9S8-GO composite with 1 wt%GO(GcS1)has an average crystal size of 76 nm and shows the strongest adsorption capability toward lithium *** used as the host material for the cathode of Li-S batteries,the GcS1-sulfur composite exhibits an initial specific capacity of^-1000 mAh g^-1 at 0.5 c and shows an average decay rate of 0.11%for 500 *** work on the dispersion control of co9S8 nanocrystals may inspire more investigations on well-dispersed nanocrystal based hosts for Li-S batteries.

关键词： Metal sulfides composite sulfur cathode cobalt sulfides Lithium-sulfur batteries Electrocatalysis

Synthesis of high-performance single-crystal Li-rich cathode by self-combustion method

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Rare Metals 2023年第3期42卷 830-837页

作者： lun-Te Li Ya-fen chen yan-chen Liu Qi Zhang Jun-Wei Wu Qun-Hui Yuan School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518055China

Li-rich manganese-based oxide has been identified as the most promising cathode material for next-generation Li-ion batteries,due to its high capacity,high operating voltage,safety,and low ***,its wide application is restricted by low initial columbic efficiency,undesirable cycle stability,and poor rate *** tackle these issues,single-crystal Li_(1.2)Mn_(0.54)co_(0.13)Ni_(0.13)O_(2) is synthesized by a self-combustion *** with the poly-crystal Li-rich cathode,the specific discharge capacity of the single-crystal sample increased from 252.0 to304.6 mAh·g^(-1) at 0.1 c.

关键词： crystal high manganese

carbon stock in Korean larch plantations along a chronosequence in the Lesser Khingan Mountains, china

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Journal of forestry Research 2014年第4期25卷 749-760页

作者： Wei MA yan-hong LIU Yu-jun SUN jason Grabosky The Key Laboratory of Silviculture and conservation of the Ministry of Education College of Forestry Beijing Forestry University New Jersey Agricultural Experiment Station Rutgers University New Jersey USA

carbon （c） dynamics are central to understanding ecosystem restoration effects within the context of Grain for Green Project （GGP）. GGP stared in china since 2003 to improve the environment. Despite its importance, how total forest ecosystem c stock （fEcS） develops fol- lowing land-use changes from cropland to plantation is poorly under- stood, in particular the relationship of c allocation to pools. We quanti- fied c pools in a chronosequence ranging from 0 to 48 years, using com- plete above- and below-ground harvests based on detailed field inventory Stands were chosen along a succession sequence in managed plantations of Korean larch （Larix olgensis Henry.）, a native planting species in the Lesser Khingan Mountains, Northeast of china. The fEcS of Korean larch plantation （KLP） were dynamic across stand development, chang- ing from 88.2 ***-1 at cropland, to 183.9 ***·-1 as an average of forest c from 7- through 48-year-old plantation. In a 48-year-old mature KLP, vegetation comprises 48.63% of fEcS and accounts for 67.66% of annual net c increment （ANcI）. Soil is responsible for 38.19% and 13.53% of those, and with the remainders of 13.18% and 18.81% in down woody materials. Based on comparisons of our estimate to those of others, we conclude that afforestation of Korean larch plantation is a valid approach to sequester carbon.

关键词： Korean larch plantation forest ecosystem carbon stock,chronosequence

The Robust Iterative Learning control of Networked control Systems with Varying References

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The Robust Iterative Learning Control of Networked Control S...

Meridian Tropism of Polygoni Avicularis Herba by Tissue Distribution of Avicularin in Rats

第25届中国控制与决策会议

作者： lun Zhai Guohui Tian fengyu Zhou yan Li Service Robots Laboratory of Shandong Universiy School of control Science and Engineering Shandong University

ISBN: (纸本)9781467355322

In this paper, the iterative learning control （ILc） is applied to the networked control system （NcS） with iterative varying references and time-delayed states. A robust PD type ILc learning law is discussed including both feedback and feedforward terms. And a P type reference updating law is applied to improve the convergence speed. The convergence conditions are derived in both frequency and time domains. The learning gains in the updating law guarantee the convergence of the control strategy, and can be adjusted to improve the convergence speed to a large extent. A number of simulation results are provided to validate the concepts and the tuning rules are summarized as well.

关键词： Iterative learning control Networked control system convergence Robustness Iterative varying references.

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chinese Herbal Medicines 2012年第3期4卷 201-204页

作者： fu-quan XU[a] Hua-shi GUAN[b] Yuan-yuan fENG[c] Bin-lun yan[a] Jiangsu Key Laboratory of Marine Biotechnology Huaihai Institute of TechnologyLianyungang 222005China

Objective To observe the meridian tropism of Polygoni Avicularis Herba by tissue distribution of avicularin in rats. Methods Tissue distribution of avicularin in rat following a single iv administration was appointed and observed. HPLc method was established and validated for the determination of avicularin in rat tissues. Results Kidney and bladder were the most important target tissue of avicularin. conclusion HPLc method is successfully applied to tissues distribution study of avicularin after iv administration to rats, and the results explain Polygoni Avicularis Herba on bladder tropism reasonably.

关键词： avicularin HPLc meridian tropism Polygoni Avicularis Herba tissues distribution