Results 11 to 20 of about 403,861 (273)
Prognosis of patients with hepatocellular carcinoma. Validation and ranking of established staging-systems in a large western HCC-cohort. [PDF]
HCC is diagnosed in approximately half a million people per year, worldwide. Staging is a more complex issue than in most other cancer entities and, mainly due to unique geographic characteristics of the disease, no universally accepted staging system ...
Göke, Burkhard +11 more
core +3 more sources
Ultra-High-Energy Cosmic Ray Acceleration by Magnetic Reconnection in Newborn Accretion Induced Collapse Pulsars [PDF]
We here investigate the possibility that the ultra-high energy cosmic ray (UHECR) events observed above the GZK limit are mostly protons accelerated in reconnection sites just above the magnetosphere of newborn millisecond pulsars which are originated by
Alex Lazarian +3 more
core +3 more sources
Nickel-Rich Outflows from Accretion Disks Formed by the Accretion-Induced Collapse of White Dwarfs [PDF]
A white dwarf (WD) approaching the Chandrasekhar mass may in several cases undergo accretion-induced collapse (AIC) to a neutron star (NS) before a thermonuclear explosion ensues.
A. L. Piro +57 more
core +1 more source
The Probabilistic Analysis of Drought Severity- Duration in North Khorasan Province using Copula Functions [PDF]
Introduction and Objective Droughts have a set of negative environmental, social and economic effects in a region or country. Using a monthly index and its analysis that, in addition to precipitation values, takes into account the effect of evaporation ...
Mehdi Teimouri +2 more
doaj +1 more source
针对低信噪比条件下微震初至拾取准确度低的问题,基于信号幅度变化引入权重因子,对传统长短时窗比值(STA/LTA)算法进行改进,提高初次拾取精度。为了进一步降低拾取误差,对变分模态分解(VMD)算法进行优化,基于互相关系数和排列熵准则自适应确定VMD分解层数,对初次拾取结果前后2—3 s的记录进行优化VMD,并计算分解后各本征模函数(IMF)的峰度赤池信息准则值,得到各IMF的到时,以各IMF的拾取结果及能量比综合加权得到二次拾取到时。仿真实验表明:改进后的STA ...
Juan Meng, Yanxiong Wu, Yanan Li
doaj +1 more source
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Timothy DelSole, Michael K. Tippett
openaire +2 more sources
Segmented compressed sampling for analog-to-information conversion: Method and performance analysis [PDF]
A new segmented compressed sampling method for analog-to-information conversion (AIC) is proposed. An analog signal measured by a number of parallel branches of mixers and integrators (BMIs), each characterized by a specific random sampling waveform, is ...
Taheri, Omid, Vorobyov, Sergiy A.
core +2 more sources
No abstract available.
Kasebwe T.L. Kabongo, Juliane Stork
doaj +1 more source
Modeling with generalized linear model on covid-19: Cases in Indonesia
The ongoing Covid-19 outbreak has made scientists continue to research this Covid-19 case. Most of the research carried out is on the prediction and modeling of Covid-19 data. This study will also discuss Covid-19 data modeling.
Subian Saidi +2 more
doaj +1 more source
The accretion-induced collapse (AIC) of a white dwarf to form a neutron star can leave behind a rotationally supported disk with mass of up to ~ 0.1 M_sun.
Abdikamalov +65 more
core +1 more source

