Results 101 to 110 of about 133,957 (286)

Beyond hydrogen: Process design of a biogas steam reformer for Fischer–Tropsch synthesis

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The effect of pressure and steam to carbon ratio on carbon conversion. Abstract We present an analysis of a pilot‐scale multi‐tubular biogas steam reforming reactor, part of a sustainable aviation fuel (SAF) development project in Brazil. The novelty of this work is the application of a new, validated power law kinetic model, specifically developed for
Rafael Belo Duarte   +3 more
wiley   +1 more source

The interaction of solar radiation modification with Earth system tipping elements [PDF]

open access: yesEarth System Dynamics
The avoidance of hitting tipping points has been invoked as a significant benefit of solar radiation modification (SRM) techniques; however, the physical science underpinning this has thus far not been comprehensively assessed.
G. Futerman   +6 more
doaj   +1 more source

Quantum Cryptography: Security Criteria Reexamined

open access: yes, 2004
We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security analysis, namely that the so-called square-root measurement is optimal for ...
Englert, Berthold-Georg   +4 more
core   +1 more source

Causal Effects of Hydrophilic Bile Acids on Carfilzomib‐Related Cardiovascular Events in Multiple Myeloma: A Mendelian Randomization Study

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Carfilzomib is highly effective in the treatment of multiple myeloma, but it has been associated with cardiovascular adverse events that impact patient outcomes. Our prior global metabolomic analyses indicated an association between hydrophilic bile acids and carfilzomib‐cardiotoxicity risk, although a causal relationship remained to be determined ...
Samia Shabnaz   +15 more
wiley   +1 more source

A 156-in.-dia SRM mass properties report [PDF]

open access: yes
Mass property data for the 156-in.-dia SRM booster with two segments are presented. The SRM baseline booster has a fixed 15 deg canted nozzle and no thrust neutralization system.

core   +1 more source

Advanced nonlinear modelling techniques for switched reluctance machines [PDF]

open access: yes, 2003
This paper gives an overview of different modelling techniques to describe the nonlinear behaviour of both saturated switched reluctance machine (SRM) and power electronic converter.
Belmans, Ronnie   +3 more
core  

Family's socioeconomic and demographic factors on elements of children's dental and oral health: A scoping review

open access: yesClinical and Experimental Dental Research, EarlyView.
Abstract Background Family plays a significant role in children's dental and oral health (DOH) elements, such as children's DOH knowledge and practice, the development of children's dental fear and anxiety (DFA), children's dental visits, and children's DOH status.
Wisnu Fadila   +5 more
wiley   +1 more source

Shifts in shuttle SRM performance because of ammonium perchlorate crystal shape on missions 51-I/J and 61-A/B [PDF]

open access: yes
The design of the Space Shuttle vehicle configuration requires that the SRMs produce thrust within tightly-controlled limits. These limits provide assurance that Shuttle ascent performance goals will be achieved within the vehicle flight load constraints.
Blackwell, D. L.
core   +1 more source

Thermophilic Sulfate Reduction in Hydrothermal Sediment of Lake Tanganyika, East Africa [PDF]

open access: yes, 1994
In environments with temperatures above 60 degrees C, thermophilic prokaryotes are the only metabolically active life-forms. By using the (SO42-)-S-35 tracer technique, we studied the activity of sulfate-reducing microorganisms (SRM) in hot sediment from
Elsgaard, L.   +3 more
core   +1 more source

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