Results 121 to 130 of about 46,856 (313)

Paleopathology of a putative colossosaurian caudal vertebra (Neosauropoda: Titanosauria) from the Presidente Prudente Formation, Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente Formation (Bauru Basin ...
Maria Luiza Peres Bertolossi   +5 more
wiley   +1 more source

Characterization Of DAC [PDF]

open access: yes, 2006
This dissertation presents about characterization of Digital-to-Analog Converter (DAC). It is included a theory, problem facing, problem solving, characterization techniques, results and lastly conclusion.
Korakkottil Kunhi Mohd, Shukri
core  

Addressing the Energy Trilemma: The Role of Entrepreneurship, Regulation, and Climate Finance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Balancing energy security, energy equity, and environmental sustainability has become increasingly challenging as economies pursue low‐carbon growth amid climate risk and persistent disparities in access to modern energy. Although entrepreneurship is widely recognized as a driver of innovation, its role in addressing the energy trilemma ...
Kingsley Imandojemu   +3 more
wiley   +1 more source

Carbon‐Supported Dual‐Nickel Atom Catalysts With Stabilized Ni─N3 Active Sites for Efficient CO2 Electroreduction

open access: yesCarbon Energy, EarlyView.
Dual‐nickel atom catalysts (Ni‐DACs) are developed to stabilize unsaturated Ni─N3 atomic sites by constructing N3Ni─NiN3 dual‐atom structures from coal. Benefiting from the modulated electronic structure that optimizes intermediate adsorption, Ni‐DACs outperform Ni‐SACs in CO2 electroreduction, achieving a max FECO of 98.6% at −0.8 V vs RHE and a TOF ...
Jiabao Niu   +8 more
wiley   +1 more source

A CS method for DAC nonlinearity testing

open access: yes, 2020
High resolution Digital-to-Analog Converters (DACs) are known to be characterized by static testing procedures with a remarkable duration, due to the huge number of employed codes.
Rapuano S.   +3 more
core  

RF DAC [PDF]

open access: yes, 2003
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.Includes bibliographical references (p.
Luschas, Susan, 1975-
core  

A perspective on digital health platform design and its implementation at national level

open access: yesFrontiers in Digital Health
Accessible and affordable health services and products including medicines, vaccines, and public health are an important health agenda of all countries.
Manisha Mantri   +4 more
doaj   +1 more source

Tailoring Se‐Mediated Co‐Co Dual‐Atom Sites for Oxygen and Iodide Electrocatalysis Toward High‐Efficiency and Ultradurable Zinc‐Air/Iodide Hybrid Batteries

open access: yesCarbon Energy, EarlyView.
A Se‐mediated Co dual‐atom catalyst replaces sluggish oxygen evolution with efficient iodide oxidation in zinc‐air/iodide hybrid batteries. Se‐induced d‐p orbital hybridization optimizes adsorption, enabling a low 0.365 V voltage gap and superior durability, fundamentally overcoming conventional kinetic bottlenecks.
Huaipeng Pang   +6 more
wiley   +1 more source

A Chinese Abacus DAC for Video Applications

open access: yes, 2012
[[abstract]]This paper proposes an 8-bit DAC suitable for video applications. This DAC circuit uses resister strings to get a. good analog output. The designed DAC uses the algorithm of Chinese abacus.
Huang, Shun-He; Lin, Chien-Hung; Yi, Shu-Chung; Chen, Jin-Jia
core  

Migrating from DAC to RBAC

open access: yes, 2015
Part 2: Access Control and AuthorizationInternational audienceRole Based Access Control (RBAC) is one of the most popular means for enforcing access control.
Jaideep Vaidya   +9 more
core   +1 more source

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