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| 1 | Application of Ordinary Kriging in Mapping Soil Organic Carbon in Zambia显示文摘The quantification of the pattern and spatial distribution of soil organic carbon(SOC) is fundamental to understand many ecosystem processes. This study aimed to apply ordinary kriging(OK) to model the spatial distribution of SOC in a selected part of Zambia. A total of 100 soil samples were collected from the study area and analyzed for SOC by determining soil oxidizable carbon using the Walkley-Black method. An automated fitting procedure was followed when modeling the spatial structure of the SOC data with the exponential semivariogram. The results indicated that the short range spatial dependence of SOC was strong with a nugget close to zero. The spatial autocorrelation was high to medium with a nugget to sill ratio of 0.25. The root mean square error of the predictions was 0.64, which represented 58.18% of the mean observed data for SOC. It can be concluded that the generated map could serve as a proxy for SOC in the region where evidence of spatial structure and quantitative estimates of uncertainty are reported.Therefore, the maps produced can be used as guides for various uses including optimization of soil sampling. | Lydia Mumbi CHABALA Augustine MULOLWA Obed LUNGU | 2017 | Pedosphere2017，27，2： | 5 |
| 2 | Automatic landing system using neural networks and radio-technical subsystems显示文摘The paper focuses on the design of a new automatic landing system(ALS) in longitudinal plane; the new ALS controls the aircraft trajectory and longitudinal velocity. Aircraft control is achieved by means of a proportional-integral(PI) controller and the instrumental landing system– the first phase of landing(the glide slope) and a proportional-integral-derivative(PID) controller together with a radio-altimeter – the second phase of landing(the flare); both controllers modify the reference model associated with aircraft pitch angle. The control of the pitch angle and longitudinal velocity is performed by a neural network adaptive control system, based on the dynamic inversion concept, having the following as components: a linear dynamic compensator, a linear observer, reference models, and a Pseudo control hedging(PCH) block. The theoretical results are software implemented and validated by complex numerical simulations; compared with other ALSs having the same radio-technical subsystems but with conventional or fuzzy controllers for the control of aircraft pitch angle and longitudinal velocity, the architecture designed in this paper is characterized by much smaller overshoots and stationary errors. | Romulus Lungu Mihai Lungu | 2017 | Chinese Journal of Aeronautics2017，30，1： | 4 |
| 3 | The liver diseases of lipodystrophy: The long-term effect of leptin treatment显示文摘 | Elika Safar Zadeh Andreea O. Lungu Elaine K. Cochran Rebecca J. Brown Marc G. Ghany Theo Heller David E. Kleiner Phillip Gorden | 2013 | Journal of Hepatology2013，，1： | 3 |
| 4 | Perovskite type lanthanum manganite:Morpho-structural analysis and electrical investigations显示文摘Perovskite-type oxides of LaMnO_3 were synthesized by means of the sol-gel method, in the presence of citric acid as gelling agent. The precursors used were Mn(NO_3)_2·H_2O, La_2O_3, and NaOH,mixed in the stoichiometric ratio to obtain perovskite materials. The obtained gel was heat-treated at 400, 600 and 800 ℃ respectively, for 6 h. X-ray diffraction and FT-IR spectroscopy were used to analyze the phase transformation as a function of temperature, and the Rietveld refinement was used in order to characterize the materials obtained structurally. The average crystallite size of the products was calculated from XRD data and the average particle size was measured from the TEM micrographs. At 600 ℃, the synthesized compound is well-crystallized, showcases a perovskite structure(Pm-3m space group), and exhibits uniform and homogeneous hexagonally-shaped particles, with sizes in the 20-50 nm range.Complex impedance measurements in the 20-2 × 10~6 Hz frequency range were carried out at different temperatures(26-115 ℃), and the electrical conduction mechanism is discussed. | Paula Sfirloaga Maria Poienar Iosif Malaescu Antoanetta Lungu Paulina Vlazan | 2018 | Journal of Rare Earths2018，36，5： | 3 |
| 5 | Modeling the role of public health education in Ebola virus disease outbreaks in Sudan显示文摘Public involvement in Ebola Virus Disease(EVD)prevention efforts is key to reducing disease outbreaks.Targeted education through practical health information to particular groups and sub-populations is crucial to controlling the disease.In this paper,we study the dynamics of Ebola virus disease in the presence of public health education with the aim of assessing the role of behavior change induced by health education to the dynamics of an outbreak.The power of behavior change is evident in two outbreaks of EVD that took place in Sudan only 3 years apart.The first occurrence was the first documented outbreak of EVD and produced a significant number of infections.The second outbreak produced far fewer cases,presumably because the population in the region learned from the first outbreak.We derive a system of ordinary differential equations to model these two contrasting behaviors.Since the population in Sudan learned from the first outbreak of EVD and changed their behavior prior to the second outbreak,we use data from these two instances of EVD to estimate parameters relevant to two contrasting behaviors.We then simulate a future outbreak of EVD in Sudan using our model that contains two susceptible populations,one being more informed about EVD.Our finding show how a more educated population results in fewer cases of EVD and highlights the importance of ongoing public health education. | Benjamin Levy Christina Edholm Orou Gaoue Roselyn Kaondera-Shava Moatlhodi Kgosimore Suzanne Lenhart Benjamin Lephodisa Edward Lungu Theresia Marijani Farai Nyabadza | 2017 | Infectious Disease Modelling2017，2，3： | 2 |
| 6 | Cyclosporin a inhibits flow-mediated activation of endothelial nitric-oxide synthase by altering cholesterol content in caveolae 显示文摘 | Lungu AO Jin ZG Yamawaki H | 2004 | J Biol Chem2004，279，48： | 1 |
| 7 | Colloidal silver solutions with antimicrobial properties显示文摘 | Petica A Gavriliu S Lungu M | 2008 | Materials Science and Engineering B2008，152，3： | 1 |
| 8 | Plasticity of regulatory T cells under cytokine pressure显示文摘 | Diaconu CC Neagu AI Lungu R | 2010 | Roum Arch Microbiol Immu- nol2010，69，4： | 1 |
| 9 | MicroRNA profiling and the role mieroRNA-132 in neurodegeneration using a rat model 显示文摘 | Lungu G Stoica G Ambrus A | 2013 | Neurosci Lett2013，553，： | 1 |
| 10 | Cyclophilin A is a proinflammatory cytokine that activates endothelial cells显示文摘 | Jin ZG Lungu AO Xie L | 2004 | Arterioscler Thromb Vasc Biol2004，24，7： | 1 |
| 11 | Cyclophilin A is a proinflammatory cytokine that activates endothelial cells显示文摘 | JIN Z G LUNGU A O XIE L | 2004 | Arterioscler Thromb Vasc Biol2004，24，7： | 1 |
| 12 | Comparison of a real- time PCR method with a culture method for the detection of Salmonella enterica serotype enteritidis in naturally contaminated environmental samples from integrated poultry houses 显示文摘 | Lungu B Wahman WD Berghaus RD | 2012 | J Food Prot2012，75，4： | 1 |
| 13 | AgSnO2 Sintered Electrical Contacts with Ultrafine and Uniformly Dispersed Mierostructure显示文摘 | Lungu M Gavriliu S Canta T | 2006 | Journal of Optoeleetronies and Advanced Materials2006，8，2： | 1 |
| 14 | Properties Enhancement of an Eco-Friendly Electrical Contact Material by Silver Nanoparticles Addition显示文摘 | Lungu Magdalena Gavriliu Stefania Enescu Elena Lucaci Mariana Tsakiris Violeta Rimbu Gimi | 2012 | Metallurgical and Materials Transactions2012，，： | 1 |
| 15 | Cyclosporin A inhibits flowmediated activation of endothelial nitric-oxide synthase by altering cholesterol content in Caveolin显示文摘 | Lungu AO Jin ZG Yamawaki H | 2004 | J Bio Chem2004，279，48： | 1 |
| 16 | Preparation and properties of novel slow-release NPK agroehemical formulations based on poly (acrylic acid ) hydrogels and liquid fertilizers 显示文摘 | Teodorescu M Lungu A Stanescu P O Neamt C | 2009 | Industrial Engineering Chemistry Research2009，48，14： | 1 |
| 17 | Impact ofα-lipoic acid on liver peroxisome proliferator-activated receptor-α,vascular remodeling,and oxidative stress in insulin-resistant rats显示文摘 | El Midaoui A Lungu C Wang H | 2011 | Can J Physiol Pharmacol2011，89，10： | 1 |
| 18 | Insulin resistance is a suf- ficient basis for hyperandrogenism in lipodystrophic women with poly- cystic ovarian syndrome显示文摘 | Lungu AO Zadeh ES Goodling A | 2012 | J Clin Endocrinol Metab2012，97，2： | 1 |
| 19 | 显示文摘 | Kleps I Nicolaescu D Lungu C | 1997 | Appl Surf Sci1997，111，： | 1 |
| 20 | Cyclophilin Aisa proinflammatory cytokine that activates endothelial cells 显示文摘 | JINZG LUNGU AO XIE L | 2004 | ArteriosclerThromb Vas Biol2004，24，7： | 1 |
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