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| 1 | Reconstructing the size of individual trees using log data from cut-to-length harvesters in Pinus radiata plantations: a case study in NSW, Australia显示文摘With their widespread utilization, cut-to-length harvesters have become a major source of ‘‘big data'' for forest management as they constantly capture, and provide a daily flow of, information on log production and assortment over large operational areas. Harvester data afford the calculation of the total log length between the stump and the last cut but not the total height of trees. They also contain the length and end diameters of individual logs but not always the diameter at breast height overbark(DBHOB) of harvested stems largely because of time lapse, operating and processing issues and other system deficiencies. Even when DBHOB is extracted from harvester data, errors and/or bias of the machine measurements due to the variation in the stump height of harvested stems from that specified for the harvester head prior to harvesting and diameter measurement errors may need to be corrected. This study developed(1) a system of equations for estimating DBHOB of trees from diameter overbark(DOB) measured by a harvester head at any height up to 3 m above ground level and(2) an equation to predict the total height of harvested stems in P. radiata plantations from harvester data. To generate the data required for this purpose, cut-to-length simulations of more than 3000 trees with detailed taper measurements were carried out in the computer using the cutting patterns extracted from the harvester data and stump height survey data from clearfall operations. The equation predicted total tree height from DBHOB, total log length and the small end diameter of the top log. Prediction accuracy for total tree height was evaluated both globally over the entire data space and locally within partitioned subspaces through benchmarking statistics. These statistics were better than that of the conventional height-diameter equations for P. radiata found in the literature, even when they incorporated stand age and the average height and diameter of dominant trees in the stand as predictors. So this equation when used with harvester data would outperform the conventional equations in tree height prediction. Tree and stand reconstructions of the harvested forest is the necessary first step to provide the essential link of harvester data to conventional inventory, remote sensing imagery and Li DAR data. The equations developed in this study will provide such a linkage for the most effective combined use of harvester data in predicting the attributes of individual trees, stands and forests, and product recovery for the management and planning of P. radiata plantations in New South Wales, Australia. | Kuan Lu Huiquan Bi Duncan Watt Martin Strandgard Yun Li | 2018 | Journal of Forestry Research2018，29，1： | 4 |
| 2 | Low-frequency ultrasound increases non-viral gene transfer to the mouse lung显示文摘如果在 3035 kHz 的范围,低频率的超声(美国) 增加非病毒的基因转移到老鼠肺,学习的目的是估计。美国极大地在空气 / 织物接口由于大精力损失在肺被稀释。低频率的美国的优点,与高周波的美国相比:(i) 增加了成穴(为在房间膜的短暂毛孔的形成负责) 并且(ii ) 在肺穿入期间减少了精力损失。Cationic 类脂化合物 GL67/plasmid DNA (pDNA ) , polyethylenimine (PEI )/pDNA 和裸体 pDNA 经由 intranasal 灌输被交付,动物然后为 10 min 在 0.07 或 0.1 MPa 暴露于美国(sonoporation ) 。在这些条件下面,美国没提高 GL67 或调停 PEI 的 transfection。然而,它确实由约 4 褶层增加了裸体 pDNA 基因转移。重要地,这当 microbubbles 不在时被完成,它是关键的为通常使用高周波(1 MHz ) sonoporation 但是不能在临床上相关的安装承受 nebulization。肺出血也被估计并且出现以一种剂量依赖者方式与美国压力增加。这样,我们证实了低频率的美国能与裸体 pDNA 提高肺基因转移,这改进比更有效以前报导了 1 个 MHz 美国。 | Stefania Xenariou Hai-Dong Liang Uta Griesenbach Jie Zhu Raymond Farley Lucinda Somerton Charanjit Singh Peter K. Jeffery Ronald K. Scheule Seng H. Cheng Duncan M. Geddes Martin Blomley Eric W. F. W. Alton | 2010 | Acta Biochimica et Biophysica Sinica2010，42，1： | 2 |
| 3 | A new model for predicting the total tree height for stems cut-to-length by harvesters in Pinus radiata plantations显示文摘A new model for predicting the total tree height for harvested stems from cut-to-length(CTL)harvester data was constructed for Pinus radiata(D.Don)following a conceptual analysis of relative stem profi les,comparisons of candidate models forms and extensive selections of predictor variables.Stem profi les of more than 3000 trees in a taper data set were each processed 6 times through simulated log cutting to generate the data required for this purpose.The CTL simulations not only mimicked but also covered the full range of cutting patterns of nearly 0.45×106 stems harvested during both thinning and harvesting operations.The single-equation model was estimated through the multipleequation generalized method of moments estimator to obtain effi cient and consistent parameter estimates in the presence of error correlation and heteroscedasticity that were inherent to the systematic structure of the data.The predictive performances of our new model in its linear and nonlinear form were evaluated through a leave-one-tree-out cross validation process and compared against that of the only such existing model.The evaluations and comparisons were made through benchmarking statistics both globally over the entire data space and locally within specifi c subdivisions of the data space.These statistics indicated that the nonlinear form of our model was the best and its linear form ranked second.The prediction accuracy of our nonlinear model improved when the total log length represented more than 20%of the total tree height.The poorer performance of the existing model was partly attributed to the high degree of multicollinearity among its predictor variables,which led to highly variable and unstable parameter estimates.Our new model will facilitate and widen the utilization of harvester data far beyond the current limited use for monitoring and reporting log productions in P.radiata plantations.It will also facilitate the estimation of bark thickness and help make harvester data a potential source of taper data to reduce the intensity and cost of the conventional destructive taper sampling in the fi eld.Although developed for P.radiata,the mathematical form of our new model will be applicable to other tree species for which CTL harvester data are routinely captured during thinning and harvesting operations. | Chenxi Shan Huiquan Bi Duncan Watt Yun Li Martin Strandgard Mohammad Reza Ghaff ariyan | 2021 | Journal of Forestry Research2021，32，1： | 2 |
| 4 | Late onset psychogenic nonepileptic attacks 显示文摘 | Duncan R Oto M Martin E | 2006 | Neurology2006，66，11： | 1 |
| 5 | The Role of Magnetic Resonance Cholangiography in the Management of Patients With Gallstone Pancreatitis显示文摘 | Martin A. Makary Mark D. Duncan John W. Harmon Paul D. Freeswick Jeffrey S. Bender Mark Bohlman Thomas H. Magnuson | 2005 | Annals of Surgery2005，，1： | 1 |
| 6 | Prescribing exercise at varied levels of intensity and frequency: a randomized trial 显示文摘 | Duncan GE Anton SD Sydeman SJ Newton RL Jr Corsica JA Durning PE Ketterson TU Martin AD Limaeher MC Perri MG | 2005 | Arch Intern Med2005，165，20： | 1 |
| 7 | Evaluation of a sensor for low interface pressure applications 显示文摘 | Martin Ferguson-Pell Satsue Hagisawa Duncan Bain | 2000 | Medical Engi- neering & Physics2000，22，： | 1 |
| 8 | Interarmual and seasonal variability of biomass burning emissions constrained by satellite observations显示文摘 | DUNCAN B N MARTIN R V STAUDT A C | 2003 | Journal of Geophysics Research2003，108，2： | 1 |
| 9 | Co lonic lymphoid hyperplasia in melanosis coli显示文摘 | PEARCE C B MARTIN H DUNCAN H D | 2001 | Arch Pathol Lab Med2001，125，： | 1 |
| 10 | Pacemaker-detected atrial fibrillation in patients with pacemakers: prevalence, pre- dictors, and current use of oral anticoaguIation显示文摘 | Healey JS Martin JL Duncan A | 2013 | Can J Cardi- oi2013，29，： | 1 |
| 11 | Anatomy of a low temperature zircon outgrowth显示文摘 | Duncan C. Hay Tim J. Dempster Martin R. Lee David J. Brown | 2010 | Contributions to Mineralogy and Petrology2010，，1： | 1 |
| 12 | Global phylogeography of the scalloped hammerhead shark (Sphyrna lewini) 显示文摘 | Duncan K M Martin A P Bowen B W | 2006 | Molecular Ecology2006，15，8： | 1 |
| 13 | Hepatocyte-specific deletion of Janus kinase 2 (JAK2)protects against diet-in- duced steatohepatitis and glucose intolerance显示文摘 | Shi SY Martin RG Duncan RE | 2012 | J Biol Chem2012，287，10： | 1 |
| 14 | Association Between IVUS Findings and Adverse Outcomes in Patients With Coronary Artery Disease显示文摘 | Patrick A. Calvert Daniel R. Obaid Michael O’Sullivan Leonard M. Shapiro Duncan McNab Cameron G. Densem Peter M. Schofield Denise Braganza Sarah C. Clarke Kausik K. Ray Nick E.J. West Martin R. Bennett | 2011 | JACC: Cardiovascular Imaging2011，，8： | 1 |
| 15 | Evaluation of a sensor for low interface pressure applications 显示文摘 | MARTIN Ferguson Pen HAGISAWA Satsue DUNCAN Bain | 2000 | Medical Engineering & Physics2000，，22： | 1 |
| 16 | Physical Education and Sustainable Development : An Untr-odden Path 显示文摘 | LAKE JEFFREY R STRATTON GARETH MARTIN DUNCAN | 2001 | Quest (Human Kinetics)20012001，，： | 1 |
| 17 | Pacemaker-detected at- rial fibrillation in patients with pacemakers: prevalence, predic- tors, and current use of oral anticoagulation显示文摘 | Healey JS Martin JL Duncan A | 2013 | Can J Cardiol2013，29，2： | 1 |
| 18 | Macrophage migration inhibitory factor(MIF) plays a critical role in pathogenesis of ultraviolet-B(UVB)-induced nonmelanoma shin cancer (NMSC)显示文摘 | Martin J Duncan FJ Keiser T | 2009 | FASEB J2009，23，3： | 1 |
| 19 | Effects of lateseason nitrogen fertilizer on irrigated soybean yield and composition 显示文摘 | Wesley T L Lamond R E Martin V L Duncan S R | 1998 | JProdAgric1998，11，： | 1 |
| 20 | Choice of contracts in the British National Hea- lth Service: An empirical study显示文摘 | Martin C Duncan M | 2008 | Journal of Health Economics2008，27，： | 1 |
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