Results 111 to 120 of about 52,494 (295)

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone   +3 more
wiley   +1 more source

Proportional controller Patent [PDF]

open access: yes, 1967
Proportional controller for regulating aircraft or spacecraft motion about three ...
Menefee, E. O.
core   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

open access: yesDeep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza   +4 more
wiley   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Complete Mouth Rehabilitation and Gastroesophageal Reflux Disease: Conventional and Contemporary Treatment Approaches [PDF]

open access: yes, 2017
This report describes the diagnosis and prosthodontic management of 2 patients with a history of chronic gastroesophageal reflux disease and worn dentition. Different treatment approaches were used for oral rehabilitation.
Chronopoulos, Vasilios   +4 more
core   +1 more source

Three‐Dimensional Analytical Model of a Free‐Standing Square Rocking Column

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT A three‐dimensional analytical two‐degree‐of‐freedom (2DOF) model is developed to describe the bounded rocking response of free‐standing rigid square columns subjected to bidirectional seismic excitation. The formulation extends Housner's classical planar theory by deriving the full three‐dimensional equations of motion for a column ...
Dimitra Adamopoulou   +1 more
wiley   +1 more source

Movement of piers during the construction of multiple-span reinforced concrete arch bridges [PDF]

open access: yes, 1931
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana ...
Wilson, Wilbur M., 1881-
core  

Ulnar Abutment Syndrome [PDF]

open access: yesShafa Orthopedic Journal, 2015
With regard to the published article “arthroscopic curettage of intraosseous ganglions of lunate bone” in the last journal edition, it is time to review ulnar abutment syndrome with similar clinical and radiologic findings (1). The main cause of this syndrome is the overload of carpal bones, especially lunate bone related to positive ulnar variance. In
openaire   +1 more source

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

open access: yesEnergy Science &Engineering, EarlyView.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng   +7 more
wiley   +1 more source

A Survey of Bridge Practitioners to Relate Damage to Closure [PDF]

open access: yes, 2004
The Pacific Earthquake Engineering Research (PEER) Center's second-generation performance-based earthquake engineering (PBEE) methodology is intended in part to model highway bridge performance in terms of collapse, closure, repair duration, speed or ...
Porter, Keith A.
core  

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