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@leftsidestory@mstdn.social
2026-01-21 04:47:41

RED （Ocassionally） 🔴
红 （有时） 🔴
📷 Zeiss IKON Super Ikonta 533/16
🎞️ Harman Red 125 (6x6)
#filmphotography #Photography #blackandwhite

Harman Red 125 (6x6) English Alt Text: A red-framed glass panel, possibly a window or door, leans against a brick wall in an urban setting. The glass reflects the silhouette of a person holding a camera, capturing the scene. The reflection appears ghostly and artistic, adding depth and intrigue. The entire image is bathed in a warm yellow-orange hue, giving it a vintage or surreal atmosphere. The pavement and bricks suggest an outdoor city environment. The composition blends stillness with a s…
Harman Red 125 (6x6) English Alt Text: A fruit stand displays several large, spiky durians arranged in rows on shelves. Some are tied with string. Below them are handwritten signs in Chinese, listing prices and product names. One sign offers Ju Feng sweet grapes at 10 yuan for 3 jin. A digital scale sits on the right side, indicating the fruits are sold by weight. The scene is vibrant and busy, typical of a local market. 中文替代文本： 一个水果摊展示着几排大型带刺的榴莲，有些用绳子捆绑。榴莲下方贴有几张手写中文标牌，标明价格和品名。其中一张写着“巨丰甜葡萄 10元…
Harman Red 125 (6x6) English Alt Text: A person with long curly hair stands on a sidewalk, looking at a smartphone. They wear a long-sleeved shirt with a jacket tied around the waist. The street has a bike lane marked with a bicycle symbol and a visible manhole cover. Across the street are cars, a white van, and a metal fence. Trees and buildings line the background. The image has a strong orange-yellow tint, creating a surreal, vintage look. 中文替代文本： 一位长卷发者站在人行道上，低头看着手机。他穿着长袖衬衫，腰间系着一件外套。街道上有自行…
Harman Red 125 (6x6) English Alt Text: A large traditional wooden door with metal studs and ornate lion head knockers is set into a stone facade. The door has symmetrical rectangular panels and five hexagonal decorations above it. Two plaques flank the door, one with Chinese characters. Two blurred figures walk past in the foreground, adding motion to the otherwise static architectural scene. The image has a reddish-pink tint, giving it a stylized, vintage feel. 中文替代文本： 一扇大型传统木门嵌有金属铆钉和精致的狮头门环，…
@leftsidestory@mstdn.social
2026-01-17 00:30:00

Gloom & Bloom IV ☁️🌺
黑暗绽放 IV ☁️ 🌺
📷 Zeiss IKON Super Ikonta 533/16
🎞️ Lucky SHD 400
#filmphotography #Photography #blackandwhite

Lucky SHD 400 (6x6) English: This black-and-white photograph captures an urban scene under a clear sky. In the foreground, there are trees with dense foliage, and a pedestrian staircase leading up to an elevated walkway or bridge. The staircase is flanked by a tall streetlight. The bridge extends horizontally across the image, supported by pillars. The overall atmosphere is calm, with a focus on the architectural elements and the contrast between the sky and the structures. Chinese (中文): 这张黑白照片…
Ilford HP5 Plus 400 (FF) English: This black-and-white photograph captures a daytime scene at a sports field or park. A row of empty bleacher seats is visible in the foreground, aligned along a chain-link fence. The fence is illuminated by day light, casting dramatic shadows and highlights. The background is dark, with silhouettes of trees and foliage, creating a stark contrast between the lit area and the shadows. Chinese (中文): 这张黑白照片拍摄于日间的运动场或公园。前景是一排空荡的看台座椅，沿着铁丝网围栏排列。围栏被明亮的日光照亮，投射出戏剧性的阴影和高光…
Lucky SHD 400 (6x6) English: This black-and-white image features a close-up of a white fire hydrant sign, which is shaped like a hydrant with an arch above it. The sign is positioned in front of a row of trees, creating a sense of depth. The trees are tall and slender, with their trunks and branches forming a rhythmic pattern. The background includes a paved path and neatly trimmed bushes, adding to the orderly and serene atmosphere of the scene. Chinese (中文): 这张黑白照片特写了一块白色消防栓标志，标志形状像消防栓，上方有拱形…
Lucky SHD 400 (6x6) English: This black-and-white image depicts a serene park or forest path. Tall, slender trees line both sides of the path, their trunks and branches creating a natural corridor. Two people are walking along the path in the distance, adding a sense of scale and life to the scene. The sunlight filters through the leaves, casting dappled light and shadow on the ground, enhancing the peaceful and tranquil atmosphere. Chinese (中文): 这张黑白照片展示了宁静的公园或森林小径。两侧是高大苗条的树木，树干和枝条形成天然走廊。远处有两个…
@arXiv_physicsfludyn_bot@mastoxiv.page
2026-02-26 09:01:51

Large eddy simulation of turbulent swirl-stabilized flames using the front propagation formulation: impact of the resolved flame thickness
Ruochen Guo, Yunde Su, Yuewen Jiang
arxiv.org/abs/2602.21940 arxiv.org/pdf/2602.21940 arxiv.org/html/2602.21940
arXiv:2602.21940v1 Announce Type: new
Abstract: This work extends the front propagation formulation (FPF) combustion model to large eddy simulation (LES) of swirl-stabilized turbulent premixed flames and investigates the effects of resolved flame thickness on the predicted flame dynamics. The FPF method is designed to mitigate the spurious propagation of under-resolved flames while preserving the reaction characteristics of filtered flame fronts. In this study, the model is extended to account for non-adiabatic effects and is coupled with an improved sub-filter flame speed estimation that resolves the inconsistency arising from heat-release effects on local sub-filter turbulence. The performance of the extended FPF method is validated by LES of the TECFLAM swirl-stabilized burner, where the results agree well with experimental measurements. The simulations reveal that the stretching of vortical structures in the outer shear layer leads to the formation of trapped flame pockets, which are identified as the physical mechanism responsible for the secondary temperature peaks observed in the experiment. The prediction of this phenomenon is shown to be strongly dependent on the resolved flame thickness, when the filter size is used for modeling sub-filter flame wrinklings. Without proper modeling of the chemical steepening effects, the thickness of the resolved flame brush is over-predicted, causing the flame consumption rate to be under-estimated. Consequently, the flame brush detaches from the outer shear layer, resulting in a failure to capture the flame pockets and the associated secondary temperature peaks.
toXiv_bot_toot

@Techmeme@techhub.social
2026-02-10 12:25:53

xAI co-founder Tony Wu says he "resigned", following co-founder Igor Babuschkin's exit in August 2025; Wu was in charge of reasoning and reported to Elon Musk (Juro Osawa/The Information)
theinformation.com/briefings/a

Another Cofounder of Elon Musk’s xAI Resigns
Tony Wu, one of xAI’s cofounders, said he has resigned from Elon Musk’s AI company. Wu’s exit follows the departure last year of another xAI cofounder, Igor Babuschkin. “I will deeply miss the people,  the warrooms, and all those battles we have fought together,” Wu said in a post on X. “It’s time for my next chapter.” Wu, a computer scientist who got his doctorate from the University of

@toxi@mastodon.thi.ng
2026-02-16 09:42:04

Made new test prints on some off-cuts, using a slightly stronger developer solution than usual to see impact on max. depth. The main image (Eagle Creek, Oregon) is using 18% sodium acetate (curve corrected negative), the test strips are of 20% and 15% solutions (both uncorrected). The phone capture doesn't really show the differences too well, but I think I will go for the 18-20% from now on...
(Btw. The original image is here:

iPhone photo of 3 printed pieces of paper on a table., the largest showing a kallitype print of a moody scene of a mountain creak flowing through a wintry forest canyon. Below the main image are two smaller test strips showing gradients and checkerboard patterns (partially cut off)