Dragonfly 3D World News

德国萨尔兰大学与 Fraunhofer IZFP 的研究团队对氢预充的 P355NH 压力容器钢紧凑拉伸试样做了 micro-CT 裂纹前沿全厚度扫描，并从中加工出 ROI 小样进行小于 10 微米体素的高分辨扫描；空隙网络借助 Dragonfly 3D World 2025.1 的各向异性扩散滤波去噪与阈值分割提取。结果表明氢致裂纹扩展伴随裂纹尖端附近空隙形成与二次开裂增多；但连续的氢解吸叠加了测量结果，作者建议后续开展带氢充载的原位实验。A German team (Saarland University / Fraunhofer IZFP) imaged crack fronts in hydrogen-precharged P355NH compact-tension specimens with micro-CT, combining full-thickness scans with high-resolution ROI volumes below 10 µm voxel size, and extracted the internal void network in Dragonfly 3D World 2025.1 using anisotropic-diffusion denoising followed by threshold segmentation. Hydrogen-assisted crack propagation was associated with increased void formation and secondary cracking near the crack tip; the authors note continuous hydrogen desorption superimposed on the results and recommend in-situ hydrogen-charged testing as the next step.

工业与监管界团队为替代传统的 Wilson–Staples 致畸检查建立了一套胎儿数字化成像流程：妊娠 21 天的大鼠胎儿经碘剂染色、琼脂包埋后用 ZEISS Xradia Versa micro-CT 扫描，颅骨与脑的三维图像用 Slicer 与 Dragonfly 3D World 重建分割，并由训练有素的胎儿形态学家对照传统标本确认准确性。卢戈液浸泡 72–96 小时可获得均匀的软组织对比，外部与内脏评估质量堪比传统方法；结合可解释 AI 框架，该流程有望以可定量、可复现的方式精简发育毒理学评估并减少动物使用。An industry–regulatory team built a digital imaging pipeline as a replacement for the conventional Wilson–Staples teratology examination: gestation-day-21 rat fetuses were iodine-stained, agarose-embedded, and scanned with a ZEISS Xradia Versa micro-CT, and 3D images of the cranium and brain were reconstructed and segmented with Slicer and Dragonfly 3D World, verified against conventionally prepared specimens by a trained fetal morphologist. Lugol immersion for 72–96 h produced uniform soft-tissue contrast, and external and visceral assessments compared favorably with traditional methods; combined with an explainable AI framework, the pipeline promises quantitative, reproducible developmental-toxicology assessment with reduced animal use.