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• OAI收割 [27]

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• 期刊论文 [25]
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浏览/检索结果: 共27条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Simulation of Oxygen Concentration in the Matrix Pores at Different Phases of Composting Process Based on Two-Region Model 期刊论文  OAI收割 WASTE AND BIOMASS VALORIZATION, 2024, 卷号: N/A 作者:  Qin, Haiguang;  Liu, Hongtao;  Lu, Yulan;  Zhang, Jun   |  收藏  |  浏览/下载：10/0  |  提交时间：2024/11/19 Composting  Two-region model  Air-immobile regions  Proportional coefficient of air-mobile regions  O-2 concentration   Proportional allocation with soil depth improved mapping soil organic carbon stocks 期刊论文  OAI收割 SOIL & TILLAGE RESEARCH, 2022, 卷号: 224, 页码: 14 作者:  Zhang, Mo;  Shi, Wenjiao;  Ren, Yongxing;  Wang, Zongming;  Ge, Yong   |  收藏  |  浏览/下载：52/0  |  提交时间：2022/11/09 Soil organic carbon density  Equal-area spline function  Log -ratio transformation  Random forest  Generalized linear model  Proportional allocation   Proportional allocation with soil depth improved mapping soil organic carbon stocks 期刊论文  OAI收割 SOIL & TILLAGE RESEARCH, 2022, 卷号: 224, 页码: 14 作者:  Zhang, Mo;  Shi, Wenjiao;  Ren, Yongxing;  Wang, Zongming;  Ge, Yong   |  收藏  |  浏览/下载：21/0  |  提交时间：2022/11/09 Soil organic carbon density  Equal-area spline function  Log -ratio transformation  Random forest  Generalized linear model  Proportional allocation   Mixture proportional hazards cure model with latent variables 期刊论文  OAI收割 STATISTICS IN MEDICINE, 2021, 页码: 15 作者:  He, Haijin;  Han, Dongxiao;  Song, Xinyuan;  Sun, Liuquan   |  收藏  |  浏览/下载：15/0  |  提交时间：2022/04/02 cure model  factor analysis  latent variables  logistic regression  proportional hazards model   A semiparametric mixture model approach for regression analysis of partly interval-censored data with a cured subgroup 期刊论文  OAI收割 STATISTICAL METHODS IN MEDICAL RESEARCH, 2021, 页码: 14 作者:  Sun, Liuquan;  Li, Shuwei;  Wang, Lianming;  Song, Xinyuan   |  收藏  |  浏览/下载：42/0  |  提交时间：2021/10/26 Expectation-maximization algorithm  maximum likelihood estimation  mixture cure model  partly interval-censored data  proportional hazards model   Proportional Mean Residual Life Model with Varying Coefficients for Length-Biased and Right-Censored Data 期刊论文  OAI收割 ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2020, 卷号: 36, 期号: 5, 页码: 578-596 作者:  Xu, Da;  Zhou, Yong   |  收藏  |  浏览/下载：17/0  |  提交时间：2020/06/30 Length-biased data  proportional hazards model  mean residual life  varying-coefficient model   Control of a 3-RRR Planar Parallel Robot Using Fractional Order PID Controller 期刊论文  OAI收割 International Journal of Automation and Computing, 2020, 卷号: 17, 期号: 6, 页码: 822-836 作者:  Auday Al-Mayyahi;  Ammar A. Aldair;  Chris Chatwin   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/02/22 3-RRR planar parallel robot  Cayley-Menger determinants  inverse kinematic model  bilateration  fraction order proportional integral derivate (PID) controller  bat optimization algorithm.   The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition 期刊论文  OAI收割 Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870 作者:  HXMT   |  收藏  |  浏览/下载：57/0  |  提交时间：2022/02/08 stars: magnetic field  stars: neutron  pulsars: general  Astrophysics  - High Energy Astrophysical Phenomena  Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.   Local composite partial likelihood estimation for length-biased and right-censored data 期刊论文  OAI收割 JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION, 2019, 卷号: 89, 期号: 14, 页码: 2661-2677 作者:  Xu, Da;  Zhou, Yong   |  收藏  |  浏览/下载：45/0  |  提交时间：2020/01/10 Length-biased and right-censored data  proportional hazard model  composite partial likelihood  varying-coefficient model   A powerful test for ordinal trait genetic association analysis 期刊论文  OAI收割 STATISTICAL APPLICATIONS IN GENETICS AND MOLECULAR BIOLOGY, 2019, 卷号: 18, 期号: 2, 页码: 9 作者:  Xue, Yuan;  Wang, Jinjuan;  Ding, Juan;  Zhang, Sanguo;  Li, Qizhai   |  收藏  |  浏览/下载：82/0  |  提交时间：2020/01/10 ordinal response  power  proportional odds model  response selective sampling