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@hikingdude@mastodon.social
2025-12-25 15:14:36

Just a hut under a tree in the mist ...
I saw this when I was walking back from a location scouting. When I was back at the car, I turned around - already ready to drive away when I noticed this gnarly tree in the field.
The fog was just light enough to create an interesting mood I think.
#photography

A solitary tree stands resolute in a world softened by mist, its bare branches reaching upward like skeletal fingers against the muted sky. The landscape is wrapped in a quiet, ethereal haze, blurring the horizon into a seamless blend of earth and sky. Shades of gray dominate the scene—pale silver where the light struggles through the overcast clouds, deeper charcoal along the shadowed ground—creating a mood both melancholic and peaceful. The open field stretches endlessly, its surface damp an…
A quiet winter woodland unfolds in soft shades of gray and muted silver, where bare branches stretch like delicate lace against a pale, overcast sky. The forest stands in hushed stillness, its skeletal trees stripped of leaves, their intricate patterns creating a natural tapestry of lines and shadows. A gentle mist lingers between the trunks, blurring the distance and lending the scene an ethereal, almost dreamlike quality. The ground is a patchwork of frosty grass and fallen twigs, crunching …
@hikingdude@mastodon.social
2025-10-20 17:32:23

That's how our hike at the #mummelsee started ... and how it was when we were up there. - But the walk was quite okay.
We checked the rain radar and decided to go back down rather quickly. We leveraged our rain gear and it did not disappoint us! 🙂
So we didn't see the area atop - the so called

Perched atop a densely forested hillside, a quaint observation tower and building overlook a tranquil scene. The lush, evergreen forest—rich with deep greens and hints of lighter foliage—cascades down toward a calm, reflective lake below. The sky above is overcast, casting a soft, diffused light that mutes the colors into soothing tones, creating an atmosphere of quiet serenity. The structure at the summit, partially obscured by the treetops, suggests a rewarding destination for hikers seeking…
A quiet, winding trail meanders through a lush forest, inviting exploration into its verdant depths. Towering trees, their trunks a mix of muted browns and grays, stretch upward to form a dense canopy overhead, filtering the soft, diffused light that gently illuminates the path. The forest floor is a tapestry of earthy tones, with scattered stones and roots peeking through a bed of pine needles and fallen leaves. To the right, a rocky slope is adorned with vibrant green moss and delicate ferns…
Shrouded in a veil of soft, misty gray, a solitary stone tower rises from the foggy highlands, its rugged silhouette blending seamlessly with the muted tones of the overcast sky. The tower, sturdy and timeless, is accompanied by a quaint building with a green-tinged roof, its wooden bench inviting weary hikers to rest. The gravel path leading to the structure hints at countless journeys taken, each step a story of adventure and exploration. The atmosphere is one of quiet mystery and contemplat…
A misty veil of soft gray clouds lingers over this tranquil mountain lake, creating an air of quiet mystery. The dense forest, a lush tapestry of evergreen pines and scattered deciduous shrubs, frames the still waters below. Vibrant green foliage contrasts subtly with the muted tones of weathered rocks in the foreground, adding texture to the scene. The lake itself rests peacefully, its surface barely disturbed, reflecting the muted light filtering through the overcast sky. A faint outline of …
@arXiv_physicsoptics_bot@mastoxiv.page
2025-10-14 10:47:58

Lattice Boltzmann method for electromagnetic wave scattering
Mohd. Meraj Khan, Sumesh P. Thampi, Anubhab Roy
arxiv.org/abs/2510.11042 arxiv…

Lattice Boltzmann method for electromagnetic wave scattering
In this paper, we propose the lattice Boltzmann method (LBM) as an alternative numerical approach for electromagnetic scattering. The method is systematically validated over a wide range of size parameters, thereby covering the Rayleigh, Mie, and geometric optics regimes, through comparison with established reference solutions. For circular cylinders, both perfect electrically conducting (PEC) and dielectric, LBM results are benchmarked against analytical Mie theory. For dielectric cylinders, c…

@hikingdude@mastodon.social
2025-10-19 08:31:46

Good morning!
Here are some photos from the #Mummelsee in the #Schwarzwald . We wanted to visit it last year already but somehow just managed to go there this time.
The lake itself is scenic and beautiful. But definitely a "hot spot". Luckily we were there at a day/time w…

Nestled along the tranquil edge of a dark, glassy forest pool, a bronze statue of a mermaid rests gracefully upon a weathered rock. Her serene gaze drifts across the still water, which mirrors the surrounding lush greenery and tangled branches of the dense woodland. The mermaid’s shimmering tail, intricately detailed, drapes elegantly over the rock, blending artistry with nature’s quiet beauty. Sunlight filters softly through the canopy, casting dappled reflections on the water’s surface, enhan…
Framed by delicate pine needles, a charming lakeside lodge emerges—its rustic red roof and wooden balconies blending seamlessly with the surrounding forest. The multi-story building, with its warm brown tones and flower-adorned railings, exudes alpine coziness. Below, a calm lake mirrors the muted overcast sky, its surface undisturbed except for a few small ripples. The lodge’s lower level extends almost to the water’s edge, inviting guests to step outside and enjoy the tranquil setting. In the…
A winding wooden boardwalk meanders gracefully through a lush, emerald-green forest, inviting hikers into a tranquil natural sanctuary. The path, constructed from rich, weathered planks, curves gently upward, disappearing into the dense foliage of towering conifers and moss-covered rocks. Sunlight filters softly through the canopy, casting dappled shadows on the forest floor and highlighting the vibrant green moss that clings to boulders and fallen logs.
Nestled beneath a brooding, overcast sky, this tranquil mountain lake exudes a quiet, reflective beauty. The water’s glassy surface mirrors the surrounding evergreen forest, their deep emerald hues blending seamlessly with the muted grays of the clouds above. On the far shore, a striking red building peeks through the trees, its bold color contrasting with the natural palette of greens and browns. The lake’s edge is lined with wild vegetation—tall grasses sway gently, while fallen logs and sca…
@arXiv_condmatsoft_bot@mastoxiv.page
2025-09-29 10:04:47

Radiation Forces and Torques on Janus Cylinders
Mohd. Meraj Khan, Sumesh P. Thampi, Anubhab Roy
arxiv.org/abs/2509.22308 arxiv.org/pdf/2509…

Radiation Forces and Torques on Janus Cylinders
The interaction of electromagnetic waves with dielectric Janus particles gives rise to radiation forces and torques, governed by the dielectric properties, interface orientation, and the size-to-wavelength ratio. In this study, we employ the Lattice Boltzmann Method to compute the radiation-induced drag, lift, and torque on circular Janus cylinders when illuminated by a transverse magnetic polarized plane wave. We analyze both metallo-dielectric and dielectric Janus cylinders. For metallo-diele…

@arXiv_physicsoptics_bot@mastoxiv.page
2025-10-03 08:30:41

A rigorous coupled-wave analysis of birefringent holographic gratings with periodically-modulated dielectric tensor along an in-plane direction and tensor variations in the thickness direction
Masud Mansuripur, Per Kristen Jakobsen
arxiv.org/abs/2510.01214

A rigorous coupled-wave analysis of birefringent holographic gratings with periodically-modulated dielectric tensor along an in-plane direction and tensor variations in the thickness direction
Diffraction of light upon interaction with thick slabs of a dielectric material having a periodic modulation of its refractive index (or dielectric tensor) is typically studied with the aid of the method known as the rigorous coupled-wave analysis (RCWA). The method involves solving Maxwell's equations for a large number of coupled electromagnetic plane-waves inside the dielectric slab, then matching the boundary conditions at the interface between the incidence medium and the slab, as well as …

@arXiv_mathNA_bot@mastoxiv.page
2025-10-07 08:37:32

General Order Virtual Element Approximation for the Smagorinsky turbulence model
Stefano Berrone, Karol L. Cascavita, Enrique Delgado \'Avila, Samuele Rubino, Maria Strazzullo, Fabio Vicini
arxiv.org/abs/2510.03563

General Order Virtual Element Approximation for the Smagorinsky turbulence model
In this paper, we investigate a Smagorinsky model in a virtual element framework to simulate convection-dominated Navier-Stokes equations. We conduct a two-dimensional numerical investigation to assess the performance of the general order virtual element approximation in this context. First, we examine numerically the convergence of the method with respect to the meshsize to certify the novel virtual element numerical discretization, which includes, for the first time, a discretization of the S…

@arXiv_condmatsoft_bot@mastoxiv.page
2025-09-29 09:46:37

Electro-mechanical wrinkling of soft dielectric films bonded to hyperelastic substrates
Bin Wu, Linghao Kong, Weiqiu Chen, Davide Riccobelli, Michel Destrade
arxiv.org/abs/2509.21488

Electro-mechanical wrinkling of soft dielectric films bonded to hyperelastic substrates
Active control of wrinkling in soft film-substrate composites using electric fields is a critical challenge in tunable material systems. Here, we investigate the electro-mechanical instability of a soft dielectric film bonded to a hyperelastic substrate, revealing the fundamental mechanisms that enable on-demand surface patterning. For the linearized stability analysis, we use the Stroh formalism and the surface impedance method to obtain exact and sixth-order approximate bifurcation equation…

@hikingdude@mastodon.social
2025-10-26 18:40:10

A little bit of Heather for #silentsunday ?
Just the right memories at this cold and windy day here. - enjoy.
#schwarzwald #blackforest

Nestled in the soft embrace of early morning light, this tranquil scene captures the quiet beauty of a forest trail in bloom. The foreground is adorned with delicate clusters of heather, their tiny blossoms ranging from soft pink to lavender, swaying gently as if whispering secrets to the breeze. The vibrant green of their stems contrasts beautifully with the muted earth tones of the trail. The path itself—a winding dirt road—meanders gracefully into the distance, inviting wanderers to explore…