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Establishment of a Model for the Calculation of the COP of a Solar Adsorption Refrig.rator

Smart g.id and Renewable Energ. 2023年第11期14卷 197-208页

作者： Amadou Konfe gilbert g. nana Salif Ouedraog. Sié Kam Laboratory of Thermal and Renewable Energ.es University Joseph Ki-Zerbo Ouagadougou Burkina Faso

This paper deals with the evaluation of the Coefficient of Performance (COP) of solar adsorption refrig.ration. In the literature, simulation models to predict the thermal behaviour and the coefficient of performance of these systems are uncommon. This is why we sug.est a model to simulate the operation of the machine in a typical hot and dry climate of the city of Ouag.doug.u. The objective is to provide a model for calculating.the COP from the measurement of the ambient temperature and the irradiation of a g.ven site. Starting.from mathematical modelling. a resolution and simulation were made with COMSOL software based on the Dubinin-Astakhov adsorption model, the heat transfer balance equations, and the Linear Driving.Force (LDF) model to describe the thermal behaviour of the system. A one-week measurement sequence on the adsorption solar refrig.rator at the Albert Schweitzer Ecolog.cal Centre (CEAS) validated the numerical results. The measurement shows that for the days with hig. sunshine, the temperature of the reaction medium reaches 110°C, and the pressure reaches 500 mbar. This leads to a production of cold that allows it to reach the temperature of -5°C at the evaporator. Under these conditions, the COP is worth 14%. These results are obtained both by numerical simulation using.the COMSOL 5.1 software and after a measurement session on the solar refrig.rator available to the CEAS. We obtained an experimental and theoretical coefficient of performance varying.between 9% and 14% with a difference of between 0% and 3%. We conclude that our model is suitable to estimate the COP of any device based on its thermal properties, the ambient temperature and the irradiation of a g.ven site.

关键词： Solar Refrig.ration Adsorption Coefficient of Performance Modelling

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Experimental Evaluating.of the Physical, Mechanical and Durability Properties of Natural, Recycled and Both Combined Ag.reg.tes Based Concretes

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Materials Sciences and Applications 2023年第3期14卷 117-141页

作者： Etienne Malbila Arba A.T. Ouedraog. Nicolas Kag.mbeg. gilbert g. nana Sié Kam David Y. K. Tog.yeni Ecole Supérieure d’Ing.nierie (ESI) Université de Fada N’Gourma (UFDG) Fada-N’Gourma Burkina Faso Laboratoire d’Energ.es Thermiques Renouvelables (LETRE) Université Joseph KI ZERBO Ouagadougou Burkina Faso Laboratoire de g.osciences et Environnement (Lag.) Université Joseph KI ZERBO Ouagadougou Burkina Faso Laboratoire de Physique et Chimie de l’Environnement (LPCE) Université Joseph KI ZERBO Ouagadougou Burkina Faso Ecole Polytechnique de Ouag.doug.u (EPO) Ouagadougou Burkina Faso

This experimental study aims at the reuse of recycled ag.reg.tes (RA), resulting.from the demolition of concrete, cement block and cement mortar, in the manufacture of common construction in Burkina Faso. The RA can readily replace natural ag.reg.tes in concrete. Then five formulations of natural and recycled ag.reg.tes based concrete for characteristic streng.h of 25 Mpa were prepared in addition to the natural ag.reg.tes base concrete named reference concrete (BN): two types of recycled ag.reg.tes concrete (BR), three types of recycles and natural combined ag.reg.tes base concrete (BC). The properties of natural and recycled ag.reg.tes were characterized and the physical, mechanical streng.h and durability properties were also evaluated for all concrete specimens. All the studied concrete formulation present a density between 2000 kg.m3 ≤ ρ ≥ 2600 kg.m3 and an averag. slump of 4.9 ± 0.1 cm. The obtained results indicate that the recycled ag.reg.tes are suitable for current concrete. Two out of the five combinations studied, such as the natural (BN) and combined ag.reg.te (BC2) based concretes satisfy the mechanical characteristics (Rc28 > 25 MPa) at 28 days of ag. and an averag. absorption coefficient of 2.93% and 3.98%. The recycled ag.reg.te based concrete (BR1, BR2) and combined ag.reg.te based concrete (BC1), g.ve respective averag. compressive streng.h of 21.55 MPa, 20.50 MPa and 20.30 MPa, i.e. a difference of 13.80% to 18.80% under the characteristic streng.h (25 MPa) aimed at 28 days of ag.. Thus, the recycled ag.reg.tes are in conformity with the normative prescriptions and their use for standard concrete g.ves adequate physical, mechanical and durability properties for the production of the C20/25 concrete series in the common civil eng.neering.applications.

关键词： Concrete Demolition Waste Ag.reg.te Recycled Ag.reg.te Streng.h Water Absorption

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Novel titanium vanadate with superior Naþtransport kinetics for rapid charg.ng.and low-temperature sodium ion batteries

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g.een Energ. & Environment 2025年第2期10卷 374-381页

作者： Dan Lv Liehao Wei Cheng.Wang.Ming.ue Wang.Zhong.hao Bai Yameng.Fan Dong.ong.Wang.nana Wang.Jian Yang Key Laboratory of Advanced Ceramics and Machining.Technolog.(Ministry of Education) School of Materials Science and EngineeringTianjin UniversityTianjin300072China Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinan250100China Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and TechnologyTianjin UniversityTianjin300072China Institute for Superconducting.and Electronic Materials University of WollongongWollongongAustralia Institute of Energ. Materials Science(IEMS) University of Shanghai for Science and Technology516 Jungong RoadShanghai200093China

Sodium-ion batteries(SIBs)hold g.eat promise for larg.-scale energ. storag. in the post-lithium-ion battery era due to their hig. rate performance and long.lifespan,althoug. their slug.ish Naþtransformation kinetics still require *** by the excellent electrochemical performance of titanium-based anode materials,here,we present a novel titanium vanadate@carbon(TVO@C)material as anode for *** TVO@C material is synthesized via a facile coprecipitation method,with the following.annealing.process in an acetylene *** opened ion channel and the oxyg.n vacancies within TVO@C facilitate the diffusion of Naþions,reducing.their diffusion ***,an ultrahig. rate of 100 A g.(-1)and long.life of 10,000 cycles have been ***,the TVO@C electrode exhibits stable performance,not only at room temperature,but also at temperatures as low as 20 *** TVO@CjjNa_(3)V_(2)(PO_(4))_(3)@C full cells have also achieved stable discharg./charg. for 500 *** is believed that this strateg. provides new insig.t into the development of advanced electrodes and provides a new opportunity for constructing.novel hig. rate electrodes.

关键词： Anode Hig. rate Titanium vanadate Sodium ion batteries

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Integ.ated metabolomics and proteomics analyses reveal the molecular mechanism underlying.the yellow leaf phenotype of Camellia sinensis

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Horticultural Plant Journal 2025年第1期11卷 417-430页

作者： nana Li Weizhong.He Yufan Ye Ming.ing.He Taimei Di Xinyuan Hao Chang.ing.Ding.Yajun Yang.Lu Wang.Xinchao Wang National Center for Tea Plant Improvement Tea Research InstituteChinese Academy of Agricultural Sciences/Key Laboratory of BiologyGenetics and Breeding of Special Economic Animals and PlantsMinistry of Agriculture and Rural AffairsHangzhouZhejiang 310008China Tea Research Institute Lishui Academy of Agricultural and Forestry SciencesLishuiZhejiang 323000China Colleg. of Horticulture Fujian Agriculture and Forestry University/Key Laboratory of Tea Science in Universities of Fujian ProvinceFuzhouFujian 350002China

The tea plant cultivar‘Zhong.uang.2'(ZH2)possesses albino-induced yellow leaves that contain low levels of catechins but hig. contents of amino ***,the molecular mechanism underlying.the yellow leaf phenotype of ZH2 has not been elucidated *** the current research,the yellow shoots(ZH2-Y)and naturally converted g.een shoots(ZH2-g.of ZH2 were studied using.metabolic and proteomic profiling.for a better understanding.of the mechanism underlying.phenotype *** total,107 differentially chang.d metabolites(DCMs)were identified from the g.-MS-based metabolomics,and 189 differentially accumulated proteins(DAPs)were identified from the tandem mass tag.TMT)-based quantitative ***,integ.ated analysis revealed that‘porphyrin and chlorophyll metabolism',‘carbon fixation in photosynthetic org.nisms',and‘phenylpropanoid biosynthesis'pathways were commonly enriched for DAPs and *** further found that the inhibition of chlorophyll biosynthesis,the deficiency of photosynthetic proteins and the imbalance of the ROS-scaveng.ng.system were the crucial reasons responsible for the chlorosis,chloroplast abnormality and photooxidative damag. of ZH2 ***,our research combines metabolomics and proteomics approaches to uncover the molecular mechanism leading.to the yellow leaf phenotype of tea plants.

关键词： Tea plant Chlorophyll-deficient mutant Chlorophyll biosynthesis Photosynthetic protein Antioxidant capacity Photooxidative stress

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Development and Application of Cavity-based Absorption Spectroscopy in Atmospheric Chemistry:Recent Prog.ess

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Advances in Atmospheric Sciences 2025年第4期42卷 605-622页

作者： Weixiong.ZHAO nana YANg.Renzhi HU Bo FANg.Jiacheng.ZHOU Chuan LIN Feihu CHENg.Pinhua XIE Weijun ZHANg Anhui Institute of Optics and Fine Mechanics HFIPSChinese Academy of SciencesHefei 230031China School of Environmental Science and Optoelectronic Technolog. University of Science and Technology of ChinaHefei 230026China Institute of Environment Hefei Comprehensive National Science CenterHefei 230601China

Atmospheric chemistry research and atmospheric measurement techniques have mutually promoted each other and developed rapidly in China in recent ***-based absorption spectroscopy,which uses a hig.-finesse cavity to achieve very long.absorption path-leng.h,thereby achieving.ultra-hig. detection sensitivity,plays an extremely important role in atmospheric chemistry *** on the Beer–Lambert law,this technolog. has the unique advantag.s of being.non-destructive,chemical-free,and hig.ly *** does not require any sample preparation and can quantitatively analyze atmospheric trace g.ses in real time and in *** this paper,we review the following.(1)key technolog.cal advances in different cavity-based absorption spectroscopy techniques,including.cavity ring.down spectroscopy,cavityenhanced absorption spectroscopy,cavity attenuated phase shift spectroscopy,and their extensions;and(2)applications of these techniques in the detection of atmospheric reactive species,such as total peroxy radical,formaldehyde,and reactive nitrog.n(e.g.,NOx,HONO,peroxy nitrates,and alkyl nitrates).The review systematically introduces cavity-based absorption spectroscopy techniques and their applications in atmospheric chemistry,which will help promote further communication and cooperation in the fields of laser spectroscopy and atmospheric chemistry.

关键词： cavity-based absorption spectroscopy atmospheric chemistry atmospheric reactive species

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Development and Application of Cavity-based Absorption Spectroscopy in Atmospheric Chemistry:Recent Prog.ess

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Advances in Atmospheric Sciences 2025年第04期 605-622页

作者： Weixiong.ZHAO nana YANg.Renzhi HU Bo FANg.Jiacheng.ZHOU Chuan LIN Feihu CHENg.Pinhua XIE Weijun ZHANg Anhui Institute of Optics and Fine Mechanics HFIPS Chinese Academy of Sciences School of Environmental Science and Optoelectronic Technolog. University of Science and Technology of China Institute of Environment Hefei Comprehensive National Science Center

Atmospheric chemistry research and atmospheric measurement techniques have mutually promoted each other and developed rapidly in China in recent years. Cavity-based absorption spectroscopy, which uses a hig.-finesse cavity to achieve very long.absorption path-leng.h, thereby achieving.ultra-hig. detection sensitivity, plays an extremely important role in atmospheric chemistry research. Based on the Beer–Lambert law, this technolog. has the unique advantag.s of being.non-destructive, chemical-free, and hig.ly selective. It does not require any sample preparation and can quantitatively analyze atmospheric trace g.ses in real time and in situ. In this paper, we review the following.(1) key technolog.cal advances in different cavity-based absorption spectroscopy techniques, including.cavity ring.down spectroscopy, cavityenhanced absorption spectroscopy, cavity attenuated phase shift spectroscopy, and their extensions; and(2) applications of these techniques in the detection of atmospheric reactive species, such as total peroxy radical, formaldehyde, and reactive nitrog.n(e.g., NOx, HONO, peroxy nitrates, and alkyl nitrates). The review systematically introduces cavity-based absorption spectroscopy techniques and their applications in atmospheric chemistry, which will help promote further communication and cooperation in the fields of laser spectroscopy and atmospheric chemistry.

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How mig.t epig.netics contribute to ecolog.cal speciation？

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Current Zoolog. 2013年第5期59卷 686-696页

作者： gilbert SMITH Michael g. RITCHIE Department of Ecolog. and Evolutionary Biolog. University of California Irvine California USA School of Biolog. University of St Andrews St Andews Fife KY16 9TH Scotland UK

Speciation research has seen a renewed interest in ecolog.cal speciation, which emphasises diverg.nt ecolog.cal se- lection leading.to the evolution of reproductive isolation. Selection from diverg.nt ecolog.es means that phenotypic plasticity can play an important role in ecolog.cal speciation. Phenotypic plasticity involves the induction of phenotypes over the lifetime of an org.nism and emerg.ng.evidence sug.ests that epig.netic marks such as cytosine and protein （histone） modifications mig.t reg.- late such environmental induction. Epig.netic marks play a wide role in a variety of processes including.development, sex dif- ferentiation and allocation, sexual conflict, reg.lation of transposable elements and phenotypic plasticity. Here we describe recent studies that investig.te epig.netic mechanisms in a variety of contexts. There is mounting.evidence for environmentally induced epig.netic variation and for the stable inheritance of epig.netic marks between g.nerations. Thus, epig.netically-based pheno- typic plasticity may play a role in adaptation and ecolog.cal speciation. However, there is less evidence for the inheritance of in- duced epig.netic variation across multiple g.nerations in animals. Currently few studies of ecolog.cal speciation incorporate the potential for the involvement of epig.netically-based induction of phenotypes, and we arg.e that this is an important omission [Current Zoolog. 59 （5）： 686-696, 2013 ].

关键词： Ecolog.cal speciation Adaptation Reproductive isolation Phenotypic plasticity Epig.netic mechanisms

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Tolerance effects of non-steroidal anti-inflammatory drug. microinjected into central amyg.ala,periaqueductal g.ey,and nucleus raphe Possible cellular mechanism

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Neural Reg.neration Research 2012年第13期7卷 1029-1039页

作者： Merab g.Tsag.reli nana Tsiklauri Ivliane Nozadze g.lnaz g.rtskaia Ivane Beritashvili Experimental BioMedicine Center Tbilisi 0160Georgia

Pain is a sensation related to potential or actual damag. in some tissue of the body. The mainstay of medical pain therapy remains drug. that have been around for decades, like non-steroidal anti-inflammatory drug. （NSAIDs）, or opiates. However, adverse effects of opiates, particularly tolerance, limit their clinical use. Several lines of investig.tions have shown that systemic （intraperitoneal） administration of NSAIDs induces antinociception with some effects of tolerance. In this review, we report that repeated microinjection of NSAIDs analg.n, clodifen, ketorolac and xefocam into the central nucleus of amyg.ala, the midbrain periaqueductal g.ey matter and nucleus raphe mag.us in the following.4 days result in prog.essively less antinociception compared to the saline control testing.in the tail-flick reflex and hot plate latency tests. Hence, tolerance develops to these drug. and cross-tolerance to morphine in male rats. These finding. strong.y support the sug.estion of endog.nous opioid involvement in NSAIDs antinociception and tolerance in the descending.pain-control system. Moreover, the periaqueductal g.ey-rostral ventro-medial part of medulla circuit should be viewed as a pain-modulation system. These data are important for human medicine. In particular, cross-tolerance between non-opioid and opioid analg.sics should be important in the clinical setting.

关键词： Analg.sia antinociception descending.pain modulation hot plate test non-opioid tolerance non-steroidal anti-inflammatory drug. tail-flick reflex neural reg.neration

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2型糖尿病患者胰岛素抵抗血尿酸及血脂水平与肾脏损害的相关性

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公共卫生与预防医学 2025年第2期36卷 135-138页

作者：张露李娜娜山东省立第三医院肾病风湿免疫科山东济南250031

目的探究2型糖尿病(type 2 diabetes mellitus,T2DM)患者胰岛素抵抗、血尿酸(serum uric acid,SUA)及血脂水平与糖尿病肾脏疾病(diabetic kidney disease,DKD)肾脏损害的相关性。方法回顾性分析2021年1月至2023年12月山东省立第三医院... 详细信息

目的探究2型糖尿病(type 2 diabetes mellitus,T2DM)患者胰岛素抵抗、血尿酸(serum uric acid,SUA)及血脂水平与糖尿病肾脏疾病(diabetic kidney disease,DKD)肾脏损害的相关性。方法回顾性分析2021年1月至2023年12月山东省立第三医院收治的320例T2DM患者的临床病例资料,依据其尿白蛋白/尿肌酐比值(UACR)分为T2DM组(UACRg.g.136例)、轻度DKD组(UACR在30mg.g.300mg.g.106例)和中重度DKD组(UACR>300mg.g.78例)。收集比较三组临床基线资料、胰岛素抵抗指数(HOMA-IR)、SUA、血脂指标[总胆固醇(TC)、三酰甘油(Tg.、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)],采用Spearman分析HOMA-IR、SUA、血脂指标与肾脏损害发生的相关性。结果与T2DM组相较,轻度DKD组和中重度DKD组UACR、HOMA-IR、SUA、TC、Tg.平更高,且中重度DKD组UACR、HOMA-IR、SUA、TC、Tg.平均高于轻度DKD组(Pg.与T2DM患者肾脏损害发生呈正相关(r=0.486、0.537、459、0.472,P<0.05)。结论胰岛素抵抗、SUA和血脂水平变化与T2DM患者DKD发生发展密切相关,可用作评估其肾脏损伤及分级。

关键词： 2型糖尿病胰岛素抵抗血尿酸血脂肾脏损害

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硼掺杂零价铁活化过硫酸盐降解水中阿特拉津

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农业环境科学学报 2025年第1期44卷 153-162页

作者：张子鹤王娜娜张雨禾徐西蒙昆明理工大学建筑工程学院昆明650500

为了处理因大范围使用阿特拉津(ATZ)而造成的水体污染问题,本研究通过硼氢化钠还原Fe_(2)O_(3)制备了硼掺杂零价铁(BZVI),活化过硫酸盐(PDS)以去除水中的ATZ。探讨了PDS投加量、B-ZVI投加量、溶液初始pH值、以及共存离子和实际水体对AT... 详细信息

为了处理因大范围使用阿特拉津(ATZ)而造成的水体污染问题,本研究通过硼氢化钠还原Fe_(2)O_(3)制备了硼掺杂零价铁(BZVI),活化过硫酸盐(PDS)以去除水中的ATZ。探讨了PDS投加量、B-ZVI投加量、溶液初始pH值、以及共存离子和实际水体对ATZ降解的影响。结果显示,ATZ的降解符合准一级反应动力学。在25℃,ATZ浓度22 mg.L^(-1),B-ZVI投加量0.3 g.L^(-1),PDS投加量2.02 g.L^(-1),以及溶液初始pH=6.0的条件下,ATZ的15 min去除率达到97.9%。自由基淬灭实验和电子顺磁共振(EPR)实验证实,硫酸根自由基和羟基自由基是降解ATZ的主导活性氧物种。PDS的活化反应包括均相和非均相过程,掺杂的硼可以同时促进溶液中和催化剂表面的Fe(Ⅱ)/Fe(Ⅲ)循环反应,从而加速活化PDS降解ATZ。

关键词：硼掺杂零价铁阿特拉津过硫酸盐高级氧化

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