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| 1 | Comparison of two remote sensing models for estimating evapotranspiration: algorithm evaluation and application in seasonally arid ecosystems in South Africa显示文摘Remote sensing tools are becoming increasingly important for providing spatial information on water use by different ecosystems. Despite significant advances in remote sensing based evapotranspiration(ET) models in recent years, important information gaps still exist on the accuracy of the models particularly in arid and semi-arid environments. In this study, we evaluated the Penman-Monteith based MOD16 and the modified Priestley-Taylor(PT-JPL) models at the daily time step against three measured ET datasets. We used data from two summer and one winter rainfall sites in South Africa. One site was dominated by native broad leaf and the other by fine leafed deciduous savanna tree species and C4 grasses. The third site was in the winter rainfall Cape region and had shrubby fynbos vegetation. Actual ET was measured using open-path eddy covariance systems at the summer rainfall sites while a surface energy balance system utilizing the large aperture boundary layer scintillometer was used in the Cape. Model performance varied between sites and between years with the worst estimates(R2<0.50 and RMSE>0.80 mm/d) observed during years with prolonged mid-summer dry spells in the summer rainfall areas. Sensitivity tests on MOD16 showed that the leaf area index, surface conductance and radiation budget parameters had the largest effect on simulated ET. MOD16 ET predictions were improved by:(1) reformulating the emissivity expressions in the net radiation equation;(2) incorporating representative surface conductance values;and(3) including a soil moisture stress function in the transpiration sub-model. Implementing these changes increased the accuracy of MOD16 daily ET predictions at all sites. However, similar adjustments to the PT-JPL model yielded minimal improvements. We conclude that the MOD16 ET model has the potential to accurately predict water use in arid environments provided soil water stress and accurate biome-specific parameters are incorporated. | Sebinasi DZIKITI Nebo Z JOVANOVIC Richard DH BUGAN Abel RAMOELO Nobuhle P MAJOZI Alecia NICKLESS Moses A CHO David C LE MAITRE Zanele NTSHIDI Harrison H PIENAAR | 2019 | Journal of Arid Land2019，11，4： | 4 |
| 2 | Valgus osteotomy for nonunion and neglected neck of femur fractures显示文摘Nonunion neck of femur can be a difficult problem to treat, particularly in the young, and is associated with high complication rates of avascular necrosis due to the precarious blood supply and poor biomechanics.The various treatment options that have been described can be broadly divided according to the aim of improving either biology or biomechanics. Surgeries aimed at improving the biology, such as vascularized fibula grafting, have good success rates but require high levels of expertise and substantial resources. A popular surgical treatment aimed at improving the biomechanics-valgus intertrochanteric osteotomyoptimizes conditions for fracture healing by converting shear forces across the fracture site into compressive forces. Numerous variations of this surgical procedure have been developed and successfully applied in clinical practice. As a result, the proximal femoral orientation for obtaining a good functional outcome has evolved over the years, and the present concept of altering the proximal femoral anatomy as little as possible has arisen. This technical objective supports attaining union as well as a good functional outcome, since excessive valgus can lead to increased joint reaction forces. This review summarizes the historical and current literature on valgus intertrochanteric osteotomy treatment of nonunion neck of femur, with a focus on factors predictive of good functional outcome and potential pitfalls to be avoided as well as controversies surrounding this procedure. | Viju Daniel Varghese Abel Livingston P R Boopalan Thilak S Jepegnanam | 2016 | World Journal of Orthopedics2016，7，5： | 4 |
| 3 | A Contact Stress Model for Multifingered Grasps of Rough Objects显示文摘 | Sinha P R Abel J M | 1992 | IEEE Transaction on Roboties and Automation1992，8，1： | 1 |
| 4 | A Value - Belief - Norm Theory of Support for Social Movements : The Case ofEnvironmentalism显示文摘 | Stern P C Dietz T Abel T | 1999 | Research in Human Ecology1999，，2： | 1 |
| 5 | Genotype and phenotype in patients with dihydropyfimidine dehydrogenase deficiency 显示文摘 | Van Kuilenburg AB Vreken P Abeling NG | 1999 | Hum Genet1999，104，： | 1 |
| 6 | Delay of disease development in transgenic plants that express the tobacco mosaic virus coat protein gene显示文摘 | Powell Abel P Nelson R S De B | 1986 | Science1986，232，： | 1 |
| 7 | The system integration problem显示文摘 | ABEL D J KILBY P J 1994 | 1994 | International Journal of Geographical Information Systems1994，8，1： | 1 |
| 8 | Oxygen and carbon isotope ratios in gastropod shells as indicators of paleoenvironments in the Afar region of Ethiopia显示文摘 | Abell P I Williams M A J | 1989 | Palaeogeogr Palaeoelimatol Palaeoecol1989，74，34： | 1 |
| 9 | ~-Fe203 nanorods as anode material for lithium ion batteries显示文摘 | Lin Y M Abel P R Heller A | 2011 | The Journal of Physical Chemistry Letters2011，2，22： | 1 |
| 10 | Effect of an Evidence-Based Hand Washing Policy on Hand Washing Rates and False-Positive Coagulase Negative Staphylococcus Blood and Cerebrospinal Fluid Culture Rates in a Level III NICU显示文摘 | Sharek P J Benitz W E Abel N J | 2002 | J Perinatol2002，22，3： | 1 |
| 11 | Species differences in the disposition of the CCR5 antagonist,UK-427,857,a new potential treatment for HIV显示文摘 | Walker DK Abel S Comby P | 2005 | Drug Metab Dispos2005，33，4： | 1 |
| 12 | A value - belief - norm theory of support for social movements : the case of environmentahsm显示文摘 | Stem P C Dietz T Abel T | 1999 | Human E- cology Review1999，6，2： | 1 |
| 13 | In vitro binding of matrix metalloproteinase-2 (MMP-2), MMP-9,and bacterial collagenase on collagenous wound dressings 显示文摘 | Metzmacher I Ruth P Abel M | 2007 | Wound Repair Regen2007，15，4： | 1 |
| 14 | Managing Channel Profits显示文摘 | Jeuland Abel P Steven Shugan | 1983 | Marketing Science1983，2，3： | 1 |
| 15 | Understanding the relationship between silane application conditions,bond durability and locus of failure显示文摘 | ABEL M L ALLINGTON R D DIGBY R P | 2006 | International Journal of Adhesion & Adhesives2006，26，： | 1 |
| 16 | MUC1 mucin and trefoil factor 1 protein expression in renal cell carcinoma:correlation with prognosis显示文摘 | Kraus S Abel P D Nachtmann C | 2002 | Hum Pathol2002，33，1： | 1 |
| 17 | High incidence of DNA mutations and gene amplifications of the ALK gene in advanced sporadic neuroblastoma tumours显示文摘 | Caren H Abel F Kogner P | 2008 | Biochem J2008，416，2： | 1 |
| 18 | Polymerase chain reaction versus culture for detection of Ureaplasma urealyticum and Mycoplasma hominis in the urogenital tract of adults and the respiratory tract of newborns显示文摘 | Abele -Hom M Wolff C Dressel P | 1996 | Eur J Clin Microbiol Infect Dis1996，15，： | 1 |
| 19 | Protection against tobacco mosaic virus in transgenic plants that express tobacco mosaic virus antisense RNA显示文摘 | | 1998 | Proc Natl Acad Sci USA1998，86，： | 1 |
| 20 | Expression of genes en-coding the TMV coat protein and 30-Kd protein in transformedPlants显示文摘 | Beachy R N Abel P P Nelson R S | 1986 | Journal of Cell Biochemistry1986，，： | 1 |
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