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Effects of the susceptibility of rice varieties to Sogatella furcifera on nymphal development and reproduction of Microvelia horvathi through a food chain

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Insect Science 2007年第4期14卷 317-321页

作者： TIE-GUANG XIA0 JIANG-XIA TANG Institute of Insect Ecology Hunan Agricultural UniversityChangshaChina

The effects of four rice varieties highly susceptible （ Xiang-Zao-Xian31 and Jia-Yu 164 ）, moderately susceptible （ Wei-You402 ）, and resistant （ Zhu-Liang-You02 ） to the whitebacked planthopper Sogatellafurcifera on the nymphal development, reproduc- tion and survival of Microvelia horoathi were investigated through a food chain using SogateUafurcifera as herbivore prey. Significant longer nymphal developmental time were observed in the 1 st, 4th, 5th instar and whole nymphal stage of M. horvathi raised on S. furcifera fed ZLY02 and WY402 than those of the other two varieties. M. horvathi raised on S. furcifera fed resistant ZLY02 showed a significant lower survival of whole nymphal stage than those fed other three susceptible varieties. Moreover, M. horvathi raised on S. furcifera fed resistant ZLY02 had shorter female longevity and lower lifetime fecundity than those of on susceptible XZX3l. Our results suggest that the S. furcifera- resistant rice variety ZLY02 had a negative effect on the growth and development of the predator M. horvathi through a food chain.

关键词： development food Microvelia horoathi rice variety Sogatellafurcifera,tritrophic interaction

BASIC FORMULATION OF STATIC AND DYNAMIC BEHAVIOURS OF SOIL AND OTHER POROUS MEDIA

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Applied Mathematics and Mechanics(English Edition) 1982年第4期3卷 457-468页

作者： 0.C.Zienkiewicz University of Wales. Swansea. U. K. Department of Civil Engineering

This paper treats the soil and rock or concrete as a two-phasemedium composed of a solid skeleton and an interstitial ***-der the unsaturated condition of interstitial fluid,the thirdphase is taken into consideration. In this paper. we consider theconstitutive relation,dynamic and kinematic relations,and also va-rious approximations with their limits of *** thoseof most practical engineering situations such as the consolidationproblem and the undrained behaviour. The finite element discreti-zation and the time dependent solution of various classes of soilproblem are also discussed.

关键词： BASIC FORMULATION OF STATIC AND DYNAMIC BEHAVIOURS OF SOIL AND OTHER POROUS MEDIA

On a new modified fractional analysis of Nagumo equation

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International Journal of Biomathematics 2019年第3期12卷 191-205页

作者： Khaled M.Saad Sinan deniz Dumitru Baleanu Department of Mathematics College of Science and Arts Najran University P.O. Box 1988 Najran Saudi Arabia Department of Mathematics Faculty of Applied Science Taiz University P.O. Box 6169 Taiz Yemen Department of Mathematics Faculty of Art and Sciences Manisa Celal Bayar University 45140 Manisa Turkey Department of Mathematics Faculty of Sciences Cankaya University 06530 Ankara Turkey Institute of Space Sciences Magurele-Bucharest Romania

In this work, a new modified fractional form of the Nagumo equation has been presented and deeply analyzed. Using the Caputo–Fabrizio and Atangana–Baleanu time-fractional derivatives, classical Nagumo model is transformed to a new fractional version. The modified equation has been solved by using the homotopy analysis transform method. The convergence analysis has been also examined with the help of the so-called hh-curves and average residual error. Comparing the obtained approximate solution with the exact solution leaves no doubt believing that the proposed technique is very efficient and converges toward the exact solution very rapidly.

关键词： Nagumo equation nonlinear diffusion and convection homotopy analysis transform method Caputo-Fabrizio-Caputo derivative Atangana-Baleanu-Caputo time-fractional derivatives

A reinforcement learning approach to vehicle coordination for structured advanced air mobility

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Green Energy and Intelligent Transportation 2024年第2期3卷 20-37页

作者： Sabrullah deniz Yufei Wu Yang Shi Zhenbo Wang Department of Mechanical Aerospaceand Biomedical EngineeringThe University of TennesseeKnoxvilleTN37996USA

Advanced Air Mobility(AAM)has emerged as a pioneering concept designed to optimize the efficacy and ecological sustainability of air *** core objective is to provide highly automated air transportation services for passengers or cargo,operating at low altitudes within urban,suburban,and rural *** seeks to enhance the efficiency and environmental viability of the aviation sector by revolutionizing the way air travel is *** a complex aviation environment,traffic management and control are essential technologies for safe and effective AAM *** of the most difficult obstacles in the envisioned AAM systems is vehicle coordination at merging points and *** escalating demand for air mobility services,particularly within urban areas,poses significant complexities to the execution of such *** this study,we propose a novel multi-agent reinforcement learning(MARL)approach to efficiently manage high-density AAM operations in structured *** approach provides effective guidance to AAM vehicles,ensuring conflict avoidance,mitigating traffic congestion,reducing travel time,and maintaining safe ***,intelligent learning-based algorithms are developed to provide speed guidance for each AAM vehicle,ensuring secure merging into air corridors and safe passage through *** validate the effectiveness of our proposed model,we conduct training and evaluation using BlueSky,an open-source air traffic control simulation *** the simulation of thousands of aircraft and the integration of real-world data,our study demonstrates the promising potential of MARL in enabling safe and efficient AAM *** simulation results validate the efficacy of our approach and its ability to achieve the desired outcomes.

关键词： Advanced Air Mobility(AAM) Urban Air Mobility(UAM) Air Traffic Control(ATC) Multi-Agent Reinforcement Learning(MARL)

Effects of Plant Residue Decomposition on Soil N Availability,Microbial Biomass and β-Glucosidase Activity During Soil Fertility Improvement in Ghana

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Pedosphere 2019年第5期29卷 608-618页

作者： Samuel T. PARTEY Robert B. Z0UGM0RE Naresh V. THEVATHASAN Richard F. PREZIOSI CGI AR CCAFS West Africa ProgramInternational Crops Research Institute for the Semi-Arid Tropics (ICRISAT)Bamako B.P. Box 320 (Mali) School of Environmental Sciences University of GuelphGuelph NIG 2W1 (Canada) Faculty of Life Sciences The University of ManchesterManchester M13 9PL (UK)

With limited use of inorganic fertilizers on smallholder farms,plant residues could be viable alternatives for soil fertility *** study was conducted to determine how residue quality and decomposition of nine plant species influence soil N availability,microbial biomass,andβ-glucosidase activity during soil fertility *** differences in N concentration were found among the species,ranging from 12.2 g kg-1 in Zea mays to 39.2 g kg-1 in Baphia *** C/N ratio was the highest in ***(34.4),whereas lignin and polyphenol concentrations were the greatest in Acacia *** highest decomposition rate(0.251%per day)occurred in Tithonia diversifolia,and the lowest in ***,Albizia zygia,***,and ***,with the half-lives of 28-56 *** 80%and 89%of N,P,K,Ca,and Mg were released from *** in 7 d,compared with over 70%retention in ***,***,and *** decomposition and nutrient release half-lives of Gliricidia sepium,Leucaena leucocephala,Azadirachta indica,and Senna spectabilis were less than 14 *** mineral N,microbial biomass,andβ-glucosidase activity increased under all treatments,with *** having the greatest *** N mineralization occurred in all of the species throughout the experiment,an initial N immobilization was recorded in the ***,***,***,and *** treatments for up to 14 *** and nutrient release rates,mineral N,soil microbial biomass,andβ-glucosidase activity were dependent on residue quality,and P and lignin levels,the lignin/N ratio,and the(lignin+polyphenol)/N ratio had the most significant effects(P≤0.05).

关键词： leguminous species litter quality microbial activity N mineralization nutrient release organic matter

Synthesis and photocurrent response of porphyrin-containing conjugated polymers

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Chinese Science Bulletin 2006年第11期51卷 1287-1295页

作者： ZHAO Jinling LI Binsong B0 Zhishan State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Porphyrin-containing conjugated poly- mers with fluorene or carbazole as spacer groups were prepared by Sonogashira cross-coupling reac- tions. The polymers were of high molecular weight and the flexible alkyl chains on fluorene or carbazole units made the conjugated polymers soluble in common organic solvents, such as THF and methyl- ene chloride. The polymers could form high quality durable films from solution casting. Their optical and photocurrent responsive properties were investigated. It was found that the photocurrent response was di- rectly proportional to the content of porphyrin. The incorporation of carbazole units into the polymer chains also gave positive contribution to the photo- current generation in some extent.

关键词：卟啉共轭聚合物光电流响应合成

Frailty significantly impairs the short term prognosis in elderly patients with heart failure

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Journal of Geriatric Cardiology 2018年第11期15卷 675-681页

作者： Ali deniz Caglar Ozmen Ertugrul Bayram Gulsah Seydaoglu Ayhan Usal Cukurova University Faculty of Medicine Department of Cardiology Adana Turkey Adana Numune Education and Research Hospital Department of Medical Oncology Adana Turkey Cukurova University Faculty of Medicine Department of Biostatistics AdanaTurkey

Background Frailty is a condition of elderly characterized by increased vulnerability to stressful events with high risk of adverse outcomes. The purpose of this study was to evaluate the association between frailty and adverse outcomes including death and hospitalization due to heart failure in elderly patients. Methods We included patients aged ≥ 65 years with the diagnosis of heart failure. The clinical and laboratory data, echocardiography and ECGs were recorded. Additionally, the frailty scores of the patients were evaluated according to Canadian Study of Health and Aging. All the patients were divided as frail or non-frail. The groups were compared for their characteristics and the occurrence of clinical outcomes. Results We included 86 eligible patients. The median follow-up time was four months. The mean age was 75 ± 6.5 years. Of these 86 patients, 17 (19.7%) patients encountered an event (death and/or hospitalization). Nine patients (10.4%) died during follow-up. Thirty patients (34.9%) were considered frail. Among the demographic, clinical and laboratory data, only total protein and albumin levels were found to be lower in frail patients (total protein level: 6.8 ± 0.6 g/dL in non-frails, 6.5 ± 0.9 g/dL in frails, P = 0.05;albumin level: 3.8 ± 0.4 g/dL in non-frails, 3.4 ± 0.6 g/dL in frails, P = 0.001). In multivariate analysis, frailty was found to be strongly associated with clinical outcomes in short term. Conclusions Being frail in an elderly heart failure patient is associated with death and/or hospitalization due to heart failure in short term. Therefore, frailty score should be evaluated for all elderly heart failure patients as a prognostic marker.

关键词： Death Frailty Heart failure Hospitalizations

Asian Revitalization: Adaptive Reuse in Hong Kong, Shanghai, and Singapore, edited by Katie Cummer and Lynne D. DiStefano. Hong Kong University Press, Hong Kong, 2021. ISBN 978-988-8528-55-4

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Built Heritage 2022年第2期6卷 102-105页

作者： deniz Ikiz Kaya Department of the Built Environment Eindhoven University of TechnologyPO Box 513Eindhoven 5600 MBThe Netherlands

Reuse of abandoned or underused historic buildings and sites has become an increasing global trend within the built environment in the past two decades(Bullen and Love 2011;Gravagnuolo et al.2017).Bypassing the wasteful processes of demolition and new construction,adaptive reuse prolongs the lifespan of cultural heritage,contributes to environmental sustainability and enhances urban livability(Ikiz Kaya et al.2021).Focusing on three Asian global cities—Hong Kong,Shanghai and Singapore,the book of Asian Revitalization:Adaptive Reuse in Hong Kong,Shanghai,and Singapore,edited by Cummer and DiStefano,provides a needed analysis of adaptive reuse trends,policies and practices in Asian context.

关键词： Stefan Singapore Asian

Entry qualifications and academic performance of architecture students in Nigerian Polytechnics： Are the admission requirements still relevant？

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Frontiers of Architectural Research 2014年第1期3卷 69-75页

作者： Peter 0 Adewale Olasunmbo Bolanle Adhuze Department of Architectural Technology The Federal Polytechnic Ado-Ekiti Ekiti-State Nigeria

The competence of fresh graduates of architecture has been continuously criticized by the industry for inadequate knowledge. This is often blamed on the poor standard of education evidenced by poor performances in professional and degree/diploma examinations conducted by various schools of architecture in the country. Although, factors responsible for the scenario are wetl documented in the literature, most of these works are based on testimonial and circumstantial evidences relating to management of architectural education only. The aim of this paper is to investigate the relationship between entry qualifications and the performance of architecture students in Nigerian Polytechnics with a view to determining the relevance of current admission policy to architectural education in Nigeria. Data were obtained from official records in the Department of Architecture in four randomly selected polytechnics in the southwestern part of Nigeria. Pearson Product Moment Corretation （r） was used to test the hypotheses. Findings reveal weak relationship between the two variables （physics and mathematics）. This is contrary to the expectations of most schotars and policy makers who opine that studentst proficiency in these subjects would enhance their performance at higher LeveLs. The paper traces the contradiction to the poor handling of public examinations and misconception of architecture as being pure science. It holds that if these requirements are still relied upon for the admission of students into schools of architecture, wrong candidates wouldcontinue to gain entry into the profession. The paper concludes by recommending certain measures that are capable of reversing the trend.

关键词： Academic perfor-mance Admission criteria Architecture Arts Education Science