Results 101 to 110 of about 913,825 (275)

Research on precision grinding of ferrite with graphite grinding wheel

Jin'gangshi yu moliao moju gongcheng, 2016
Graphite white corundum grinding wheel was proposed in this test,which could meet the precision machining requests and simplify the process.The experiment indicated that when the grinding parameters were 24m/s of grinding speed,1-10m/min of workpiece ...
ZHANG Bei
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Additive Manufacturing of High‐Performance Polymers for Extreme Environments

Advanced Science, EarlyView.
Additive manufacturing of high‐performance polymers for extreme environments is critically reviewed through an integrated chemistry‐processing‐structure‐property‐qualification framework. The review compares fused filament fabrication, selective laser sintering, and direct ink writing, linking rheology and thermal history to crystallization, defect ...
Md Tofazzal Hossain, Mohammed Intishar Nur, Md Shajedul Hoque Thakur, Indranil Dey, Md Mesbahul Maruf, Md Jahid Hasan, Suryasarathi Bose, Muhammad M. Rahman   +7 more
wiley   +1 more source

Research on dressing technology of the electroplated CBN grinding wheel for high precision gear forming grinding

Jixie chuandong
ObjectiveAs a popular tool for gear grinding, the electroplated cubic boron nitride (CBN) grinding wheel has drawbacks such as low dressing precision and poor stability in batch dressing.
LEI Laigui, WU Jialu, XIAO Shuangyong, PANG Aoshuang, ZHAO Jiong, ZHANG Yueting, CAO Jianfeng, CAO Yang, WANG Yongfeng   +8 more
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Dual pKa Lipid Nanoparticles for Lung‐tropic mRNA Delivery and pH‐Programmed Endosomal Escape

Advanced Science, EarlyView.
Lipid nanoparticles’ bottleneck lies in low endosomal escape efficiency and liver‐dominant delivery after intravenous administration. To overcome these limitations, we present a stepwise pH‐programmed lipid nanoparticle system enabled by our newly synthesized ionizable lipid.
Seong Gi Lim, Minju Lee, Yiming Wang, Eunjin Choi, Ji Sun Park, Kyungmin Park, Hayoung Jeon, Donghyun Kim, Donghyun Lee, Yeeun Lee, Kee‐Pyo Kim, Eunha Kim, Heebeom Koo   +12 more
wiley   +1 more source

Dynamic mechanical behavior of K417G superalloy: development of Johnson-Cook constitutive model and its application in single-grit grinding

Materials & Design
Precision grinding of K417G superalloy, a key material for hot-end components of aero-engines, is plagued by large grinding forces and excessive heat generation.
Ning Qian, Chengxiang Li, Ziyu Liu, Yuting Sun, Yusuf Kaynak, Lama Anggei, Zhengcai Zhao, Yucan Fu   +7 more
doaj   +1 more source

Grtp1 Safeguards Against Paternal Reproductive Aging and Intergenerational Behavioral Deficits by Preserving Redox Homeostasis

Advanced Science, EarlyView.
This study identifies that Grtp1 maintains germline redox homeostasis by interacting with PRDX1/4‐TXN to antagonize paternal reproductive aging. Growth hormone restores Grtp1 expression, rectifies aberrant sperm DNA methylation, and ameliorates intergenerational anxiety and social deficits, highlighting the GH‐GRTP1 axis as a promising intervention ...
Yingdong Liu, Shanyao Liu, Haixin Liang, Jiani Yang, Yanhe Li, Jiqing Yin, Xueguang Zhang, Yan Zhang, Dandan Bai, Zihui Yan, Zhuoao Zhang, Yanping Jia, Kuisheng Liu, Yifan Sheng, Jiani Xiang, Chenxiang Xi, Baoxing Dong, Xinyi Lei, Jiayu Chen, Hong Wang, Yi Guo, Yanping Zhang, Shaorong Gao, Wenqiang Liu   +23 more
wiley   +1 more source

High‐Throughput Screening for Accelerated Oxide Glass Discovery

Advanced Science, EarlyView.
A high‐throughput screening platform is presented that allows for accelerating laboratory glass synthesis by a factor of 102, using multicomponent stereolithographic printing. Automatic sample evaluation is achieved via Raman spectroscopy and similarity analysis without any sample preparation.
Igor Seibel‐Geraschenko, Josef Slowik, Franziska Scheffler, Alexis Duval, N. M. Anoop Krishnan, Lothar Wondraczek   +5 more
wiley   +1 more source

Surface Roughness Prediction of Bearing Ring Precision Grinding Based on Feature Extraction

Applied Sciences
Grinding, as the most crucial finishing process for bearing rings, influences the surface integrity of bearings through the roughness of the ground surface.
Chaoyu Shi, Bohao Chen, Yao Shi, Jun Zha
doaj   +1 more source

TH/TRs–COL11A2 Axis Mediates Loss of a Differentiated Astrocyte State in Hypogyrified Brains

Advanced Science, EarlyView.
Using a gyrencephalic congenital hypothyroidism pig model, this study reveals cerebral atrophy and cortical hypogyrification. Single‐cell sequencing identifies astrocytes as major TH‐responsive cells, with the COL11A2‐enriched Astro‐2 state nearly absent.
Ying Zhang, Xiao Wang, Hongyan Ma, Pengcheng Lyu, Shuangjie Tian, Ruojun Zong, Jiani Chen, Gang Ren, Yongjiang Yang, Zichen Yang, Guosong Qin, Naishi Li, Yanfang Wang, Jianwei Jiao, Jianguo Zhao   +14 more
wiley   +1 more source

Study on the Distribution of Cycloidal Gear Forming Grinding Temperature Field

Jixie chuandong, 2018
In the precision machining process of high precision RV reducer cycloid gear tooth surface,the grinding wheel is included in the tooth groove,and most of the grinding can be converted into thermal energy,causing the temperature of grinding zone to rise ...
Ke Qingxun, Deng Xiaozhong, Su Jianxin, Nie Shaowu   +3 more
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