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Elastic and conformational softness of a globular protein
Flexibility, or softness, is crucial for protein function and consists of a conformational component, involving jumps between potential wells, and an elastic component, involving fluctuations within the wells. Combining molecular dynamics simulation with incoherent neutron scattering and light scattering measurements on green fluorescent protein, we reveal a relationship between the intrawell fluctuations and elastic moduli of the protein. In conclusion, this finding leads to a simple means of experimentally separating the conformational from the elastic atomic displacements.
Finite-Temperature Hydrogen Adsorption and Desorption Thermodynamics Driven by Soft Vibration Modes
Not Available
High-power few-cycle Cr:ZnSe mid-infrared source for attosecond soft x-ray physics
The development of mid-infrared, high-energy pulses of extremely short pulse duration is of great importance to the strong-field physics community, as it enables extension of the high-harmonic cutoff towards the keV range of photon energies. Here we demonstrate a C r 2 + : Z n S e laser amplifier delivering 7 mJ, 100 fs pulses at 1 kHz repetition rate and 2.4 µm central wavelength with excellent energy stability and beam quality. These pulses are post-compressed to 39 fs, 6.2 mJ, and 115 GW peak power in a novel nonlinear compression scheme. The laser system was used to generate coherent soft x-ray radiation up to 0.6 keV covering the entire water window, which is of high importance for bio-relevant applications. The obtained results open a wide range of applications in nonlinear optics, attosecond and strong-field physics, and remote sensing.
Research Performance Progress Report - DOE Solar Program, Soft Costs, National Lab Projects: Promotion of PV Soft Cost Reductions in the Southeastern US
Beginning in 2014, the installed solar capacity in South Carolina (SC) grew from less than 20 megawatts to more than 300 megawatts today. Concurrently, the number of customer-sited, load-centered solar generation is expected to grow from less than 500 statewide to as many as 10,000 by 2021. This growth is the direct result of a landmark state policy initiative, Act 236, passed by the South Carolina General Assembly and signed into law by the Governor in June of 2014. Today, local policy makers in South Carolina are ill-equipped to handle the onslaught of solar permitting and zoning requests expected to come with such quick growth of an emerging market. Similarly, the state’s building inspectors, first responders, and tax assessors know little about photovoltaic (PV) technology and best practices. Finally, South Carolina’s workforce and workforce trainers continue to be underprepared to benefit from the tremendous opportunity created by the passage of Act 236. Each of these deficits in knowledge of and preparedness for solar PV translates into higher “soft costs” of installed solar PV in South Carolina.
Soft lander, part 1 - Mars soft lander capsule study /entry from orbit/ - Summary
Selection of capsule for 1973 launching of Mars soft lander mission
Soft lander, part 2 - Mars soft lander capsule study /entry from orbit/ - Introduction and parametric studies
Mission and systems parametric studies for Mars soft lander to define entry and landing capsule suitable for Mars probe in 1970 time period
Soft lander, part 3 - Mars soft lander capsule study /entry from orbit/ - Parametric studies continued
Parametric studies for Mars soft lander capsule for 1973 launching, capsule parametric analysis, and Mars environment effects
Soft lander, part 4 - Mars soft lander capsule study /entry from orbit/ - Conceptual design 1
Conceptual design 1 for capsule for Mars soft lander for 1973 launching
Soft lander, part 5 - Mars soft lander capsule study /entry from orbit/ - Conceptual design 2
Conceptual design 2 for capsule for Mars soft lander for 1973 launching
Soft lander, part 6 - Mars soft lander capsule study /entry from orbit/ - Conceptual design 3 and 4
Conceptual design 3 for capsule for Mars soft lander for 1973 launching
Soft lander, part 7 - Mars soft lander capsule study /entry from orbit/ - Conceptual design 5
Conceptual design 5 for capsule for Mars soft lander for 1973 launching
Soft lander. Part 9 - Mars soft lander capsule study /entry from orbit/ analysis of inflatable landing systems
Analysis of inflatable landing systems - Mars soft lander capsule study
Heating of H I regions by soft X rays. II - The effect of galactic soft X-ray sources
Galactic soft X ray and subcosmic ray heating and ionizing of interstellar H I regions
Developing Soft Skill in the Geosciences: NASA DEVELOP’s Approach to Strengthening Soft Skills in the Future Geospatial Workforce
Part of NASA’s Applied Sciences, the DEVELOP Program bridges the gap between NASA Earth Science and potential users through rapid feasibility studies that apply Earth observations to environmental decision making needs. The program conducts 50-60 studies a year that engage participants – students, recent graduates, early career individuals, and transitioning career professionals – in autonomous teamwork with an emphasis on professional development and communication. The experience offers participants a robust opportunity to build their teaming skills (facilitated through programmatic personality assessments and discussions), interpersonal communication, and critical thinking skills which are central to project work in the DEVELOP model. The program also offers leadership opportunities where participants lead their peers within a supportive environment. This presentation will introduce the DEVELOP model for soft skill development, lessons learned, and highlight testimonials of past participants.
Soft actuators and soft actuating devices
A soft buckling linear actuator is described, including: a plurality of substantially parallel bucklable, elastic structural components each having its longest dimension along a first axis; and a plurality of secondary structural components each disposed between and bridging two adjacent bucklable, elastic structural components; wherein every two adjacent bucklable, elastic structural components and the secondary structural components in-between define a layer comprising a plurality of cells each capable of being connected with a fluid inflation or deflation source; the secondary structural components from two adjacent layers are not aligned along a second axis perpendicular to the first axis; and the secondary structural components are configured not to buckle, the bucklable, elastic structural components are configured to buckle along the second axis to generate a linear force, upon the inflation or deflation of the cells. Methods of actuation using the same are also described.
Soft actuators and soft actuating devices
A soft buckling linear actuator is described, including: a plurality of substantially parallel bucklable, elastic structural components each having its longest dimension along a first axis; and a plurality of secondary structural components each disposed between and bridging two adjacent bucklable, elastic structural components; wherein every two adjacent bucklable, elastic structural components and the secondary structural components in-between define a layer comprising a plurality of cells each capable of being connected with a fluid inflation or deflation source; the secondary structural components from two adjacent layers are not aligned along a second axis perpendicular to the first axis; and the secondary structural components are configured not to buckle, the bucklable, elastic structural components are configured to buckle along the second axis to generate a linear force, upon the inflation or deflation of the cells. Methods of actuation using the same are also described.