检索结果-南通市图书馆

Improving the operational st.bility of perovskite solar cells with cesium-doped graphene oxide interlayer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第9期96卷 483-490页

作者： Masaud Almalki Katerina Anagnostou Konstantinos Rogdakis felix t.Eickemeyer Mostafa Othman Minas M.Stylianakis Dimitris tsikritzis Anwar Q.Alanazi Nikolaos tzoganakis Lukas Pfeifer Rita therisod Xiaoliang Mo Christian M.Wolff Aïcha Hessler-Wyser Shaik M.Zakeeruddin Hong Zhang Emmanuel Kymakis Michael Grätzel Laboratory of Photonics and Interfaces École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Department of Electrical and Computer Engineering Hellenic Mediterranean UniversityHeraklionCrete 71410Greece Institute of Electrical and Microengineering(IEM)Photovoltaics and thin-Film Electronics Laboratory(PV-Lab) École Polytechnique Fédérale de Lausanne(EPFL)Neuchâtel 2000Switzerland Department of Nursing Faculty of Health SciencesHellenic Mediterranean UniversityCrete 71410Greece Centre Interdisciplinaire de Microscopie Electronique École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Future Energy technology Institute King Abdulaziz City for Science and Technology(KACST)P.O.Box 6086Riyadh 11442Saudi Arabia State Key Laboratory of Photovoltaic Science and technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsDepartment of Materials ScienceFudan UniversityShanghai 200433China

Perovskite solar cells(PSCs)have made great advances in terms of power conversion efficiency(PCE),yet their subpar st.bility continues to hinder their *** interface between the perovskite layer and the charge-carrier transporting layers plays a crucial role in undermining the st.bility of *** this work,we propose a strategy to st.bilize high-performance PSCs with PCE over 23%by introducing a cesium-doped graphene oxide(GO-Cs)as an interlayer between the perovskite and hole-transporting *** GO-Cs treated PSCs exhibit excellent operational st.bility with a projected t80(the time where the device PCE reduces to 80%of its initial value)of 2143 h of operation at the maximum powering point under one sun illumination.

关键词： Perovskite solar cells Doped graphene oxide Graphene related material Long-term operational st.bility

维普期刊数据库

Assessment of the Recent Hydromorphological Features of Nokoue Lake and Its Channels (South-East.benin)

在线全文

学校读者我要写书评

暂无评论

Open Journal of Modern Hydrology 2024年第1期14卷 33-55页

作者： tètchodiwèï Julie-billard Yonouwinhi Gérard Alfred Franck Assiom d’Almeida felix Kofi Abagale Akuemaho Virgile Onésime Akowanou Laboratory of Applied Hydrology (LHA) National Institute of water (INE) African Centre of Excellence for Water and Sanitation (C2EA) University of Abomey-Calavi (UAC) Cotonou Benin International Chair in Mathematical Physics and Applications (ICMPA–UNESCO Chair) University of Abomey-Calavi (UAC) Cotonou Benin Laboratory of Geology Mining and Environment (LGME) Faculty of Science and Technology (FAST) University of Abomey-Calavi (UAC) Cotonou Benin West African Centre for Water Irrigation and Sustainable Agriculture (WACWISA) University of Development Studies (UDS) Tamale Ghana Laboratory of Sciences and technology for Water and Environment (LStEE) University of Abomey-Calavi (UAC) Cotonou Benin

based on 2022 and 2023 hydrometric data and satellite images (Sentinel 2022, SPOt 2010), this study aims to present the Nokoué Lake and its channels’ re-cent hydromorphological characteristics. Integrating flow, tributary morphology, and topography data determined specific power values along the axes studied. the values obtained range from 2.69 to 12.92 W/m2 for Ouémé River and 2.46 to 10.99 W/m2 for Sô River. the resulting water erosion on banks and bottoms is of linear, areolar, or gully and claw types. Lake bathymetry varies from -0.5 to -2.6 m (low flow period) and -1 to -4 m;in the Ouémé, Sô, and totchè rivers, it varies from -5 m to -7 m, reaching -10 m at the Cotonou channel entrance (flood period). bathymetric profiles reveal varied “U”, “V” and “Intermediate” bottom morphologies, influenced by erosion/sedimentation processes and human activities. the flow facies identified are lentic in the northern tributaries and lotic in the Cotonou and totchè canals. Spatial analysis identified nine (09) thematic classes. In 2022, the surface area of the water body has increased from 274 km2 at low water to 280 km2 at high water, whereas in 2010 (a recent year of exceptional flooding), the surface area was 270 km2 at low water and 277 km2 at high water. Significant changes in land use are observed between 2010 and 2022. the floodplain area decreased slightly, from 421 km2 in 2010 (year of exceptional flooding) to 419 km2 in 2022. the evolution of land use shows a progressive expansion of the urban environment to the detriment of the natural environment. In the medium to long term, this trend could threaten the hydromorphological balance and even the existence of this important lagoon ecosystem.

关键词： Nokoué Lake Ouémé River Sô River Cotonou Channel Hydromorphology

better understanding of c-reactive protein and leukocytes in psychiatric inpatients with affective disorders:A biopsychosocial approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第19期12卷 3824-3836页

作者： felix Kölblinger Elena MD Schönthaler Andreas baranyi tatjana Stross Frederike t Fellendorf Dirk von Lewinski Robert Queissner Eva Z Reininghaus Nina Dalkner Clinical Department of Psychiatry and Psychotherapeutic Medicine Medical University of GrazGraz 8036Austria Clinical Department of Cardiology Medical University of GrazGraz 8036Austria

bACKGROUND Affective disorders(AD)have been linked to inflammatory processes,although the underlying mechanisms of this relationship are still not fully *** is hypothesized that demographic,somatic,lifestyle,and personality variables predict inflammatory parameters in *** to identify biopsychosocial factors contributing to inflammation in AD measured with two parameters,C-reactive protein(CRP)and *** this observational study investigated 186 hospital inpatients diagnosed with AD using demographic parameters,serum inflammatory markers,somatic variables,psychological questionnaires,and lifestyle *** regression analyses were used to predict inflammatory markers from demographic,somatic,lifestyle,and personality *** Analyses showed that 33.8%of the variance of CRP was explained by body mass index and other somatic medication(***-diabetics),age and education,and age of affective disorder *** leukocytes,20.1%of the variance was explained by smoking,diet,met.bolic syndrome(MetS),and anti-inflammatory medication(***-steroidal anti-inflammatory drugs).Other psychiatric or behavioural variables did not reach *** Met.bolic components seem important,with mounting evidence for a met.bolic affective disorder *** modifications and psychoeducation should be employed to prevent or treat MetS in AD.

关键词： Affective disorders C-reactive protein Leukocytes Met.bolic syndrome Health behaviour Personality

Aurora b promotes the CENP-t–CENP-W interaction to guide accurate chromosome segregation in mitosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Molecular Cell biology 2024年第2期16卷 11-23页

作者： Wei Liu Zhen Dou Chunyue Wang Gangyin Zhao Fengge Wu Chunli Wang felix Aikhionbare Mingliang Ye Divine Mensah Sedzro Zhenye Yang Chuanhai Fu Zhikai Wang Xinjiao Gao Xuebiao Yao Xiaoyu Song Xing Liu MOE Key Laboratory for Cellular Dynamics Center for Advanced Interdisciplinary Science and Biomedicine of IHMUniversity of Science and Technology of China School of Life SciencesHefei 230027China Keck Center for Cellular Dynamics and Organoids Plasticity AtlantaGA 30310USA Anhui Key Laboratory for Cellular Dynamics and Chemical biology Hefei National Research Center for Interdisciplinary Sciences at the MicroscaleHefei 230026China National Chromatographic Research and Analysis Center Chinese Academy of SciencesDalian 116023China

Accurate chromosome segregation in mitosis depends on kinetochores that connect centromeric chromatin to spindle *** are captured by individual microt.bules via a kinetochore constitutive centromere-associated network(CCAN)during chromosome *** contains 16 subunits,including CENP-W and ***,the molecular recognition and mitotic regulation of the CCAN assembly remain ***,we revealed that CENP-W binds to the histone fold domain and an uncharacterized N-terminal region of *** b phosphorylates CENP-W at threonine 60,which enhances the interaction between CENP-W and CENP-t to ensure robust metaphase chromosome alignment and accurate chromosome segregation in *** findings delineate a conserved signaling cascade that integrates protein phosphorylation with CCAN integrity for the maintenance of genomic st.bility.

关键词： mitosis kinetochore Aurora b CENP-t CENP-W phosphorylation

Imaging in translational cancer research

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cancer biology & Medicine 2022年第11期19卷 1565-1585页

作者： felix t.Kurz Heinz-Peter Schlemmer Department of Radiology German Cancer Research CenterHeidelberg 69120Germany

this review is aimed at presenting some of the recent developments in translational cancer imaging research,with a focus on novel,recently est.blished,or soon to be est.blished cross-sectional imaging techniques for computed tomography(Ct),magnetic resonance imaging(MRI),and positron-emission tomography(PEt)imaging,including computational investigations based on machine-learning techniques.

关键词： Cancer imaging computed tomography(Ct) magnetic resonance imaging(MRI) positron emission tomography(PEt) cross-sectional imaging

维普期刊数据库

Nitrogen nutrition,carbon accumulation andδ^(13)C of Cyclopia and Aspalathus species in different settings of the Cape fynbos,South Africa

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2016年第5期9卷 586-595页

作者： Sipho t.Maseko felix D.Dakora Department of Crop Sciences Tshwane University of TechnologyPrivate Bag X680Pretoria 0001South Africa Chemistry Department Tshwane University of TechnologyPrivate Bag X680Pretoria 0001South Africa

Aims Cyclopia and Aspalathus are legumes harvested for production of Honeybush and Rooibos tea,*** grow these species from either seeds or cuttings over several years with continuous annual *** aims of this study were to assess the effect of plant age,plant species,toposequence,planting material and farmer practice on nitrogen(N)nutrition and water-use efficiency of two Cyclopia and Aspalathus species in the Cape *** the study was conducted using plants from Koksrivier farm located near Gansbaai(33°S 18°E,39 m.a.s.l),and at Kanetberg farm near barrydale(33°S 21°E,830 m.a.s.l).the 15N natural abundance technique was used to determine N_(2)fixation,carbon(C)assimilation andδ^(13)C in shoot of Cyclopia and Aspalathus *** Findings Older tea plantations of *** and *** derived more N from fixation and exhibited greater water-use efficiency than younger *** Koksrivier,Aspalathus caledonensis and *** showed greater water-use efficiency and derived more N from fixation than Cyclopia *** harvesting of *** decreased N_(2)*** Kanetberg,***-nata plants on the upper and middle slopes derived more N from atmospheric fixation than those on the lower *** plants grown from seedlings recorded greater%Ndfa than cuttings.N_(2)fixation and water-use efficiency of Cyclopia was affected by age,slope and planting ***,symbiotic N nutrition and water-use efficiency of Cyclopia and Aspalathus were related.

关键词： Cyclopia subternata Cyclopia genistoides Koksrivier Kanetberg fynbos

Relationship between acid phosphatase activity and P concentration in organs of Cyclopia and Aspalathus species,and a non-legume of the Cape Floristic Region

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2019年第2期12卷 387-392页

Aims the role of tissue acid phosphatase(APase)activity of legumes and non-legumes in their P nutrition and adaptation to low-P soils is not well *** better understand this,a relationship between APase activ-ity and P concentration in leaves,stems,roots and nodules of legumes,Cyclopia and Aspalathus and a non-legume,Leucadendron strictum,all native to the P-poor soils of the Cape fynbos biome,was *** Plants were collected and each separated into leaves,stems and *** enzyme activity was assayed in soil using the p-nitrophenol method,while soil P and shoot P were measured using *** measure tissue APase activity,an acetate buffer was added into ground plant material and contents *** ace-tate buffer and a p-nitrophenyl solution were added to the superna-tant and contents *** incubation,NaOH(0.5 M)was added and absorbance read at 405 *** Findings At Koksrivier,Cyclopia genistoides exhibited the highest leaf enzyme activity whilst Aspalathus aspalathoides showed the highest enzyme activity in the *** both Kleinberg and Kanetberg,Cyclopia subternata and Cyclopia longifolia showed the highest APase activity in leaves,followed by stems and low-est in roots.P concentration closely mirrored enzyme activity in organs of all test species from each *** activity posi-tively correlated with P concentration in organs of all the test Cyclopia and Leucadendron species,indicating that intracellular APase activity is directly linked to P mobilization and transloca-tion in these *** of N derived from fixation was positively correlated with tissue APase activity in ***(r=0.911^(*)),***(r=0.868^(*))and Aspalathus cal-edonensis(r=0.957^(*)),suggesting that APase activity could be directly or indirectly linked to symbiotic functioning in these fynbos legumes,possibly via increased P supply to sites of N2 fixation.

关键词： Cape fynbos δ^(15)N Leucadendron strictum percent N derived from fixation P nutrition

A multi-objective pigeon inspired optimization algorithm for fuzzy production scheduling problem considering mould maintenance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2019年第7期62卷 15-32页

作者： Xiaoyue FU felix t.S.CHAN ben NIU Nick S.H.CHUNG ting QU Department of Industrial and Systems Engineering The Hong Kong Polytechnic University College of Management Shenzhen University School of Electrical and Information Engineering Jinan University

the fuzzy production scheduling problem considering mould maintenance(FPSP-MM) is studied. the processing time and the maintenance time are represented by triangular fuzzy numbers. When tasks are executed based on the sequence provided by the fuzzy schedule, the real duration of each task needs to be known so the posteriori solution with deterministic processing times can be obtained. therefore, the concept of the schedule robustness needs to be considered for the fuzzy problem. the robustness is considered as the optimization objective except for the fuzzy makespan in this research. to optimize these two objective functions, a multi-objective pigeon inspired optimization(MOPIO) algorithm is developed. to extend the pigeon inspired optimization(PIO) algorithm from the single-objective case to the multi-objective case, nondominated solutions are used as candidates for the leader pigeon designation and a special crowding distance is used to ensure a good distribution of solutions in both the objective space and the corresponding decision space. Furthermore, an index-based ring topology is used to manage the convergence speed. Numerical experiments on a variety of simulated scenarios show the excellent efficiency and effectiveness of the proposed MOPIO algorithm by comparing it with other algorithms.

关键词： fuzzy production scheduling mould maintenance pigeon inspired optimization multi-objective

CORbA based Information Integration Platform for CIMS

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Wuhan University Journal of Natural Sciences 2002年第1期7卷 71-76页

作者： Gao Liang Zhang Jie Li Pei-gen felix t. S. Chan School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan Hubei China Department of Industrial and Manufacturing Systems Engineering the University of Hong Kong Hong Kong China

A new information integration platform for computer integrated manufacturing system (CIMS) is presented, which is based on agent and CORbA. CORbA enhances the system integration because it is an industry-standard for interoperable, distributed objects across heterogeneous hardware and software platform. Agent technology is used to improve intelligence of integration system. In order to implement the information integration platform, we use network integration server to integrate network, design a generic dat.base agent to integrate dat.base, adopt multi-agent.based architecture to integrate application, and utilize wrapper as CORbA object to integrate legacy code.

关键词： agile manufacturing agent CORbA information integration

维普期刊数据库