Results 121 to 130 of about 11,520 (295)

Roof bolting machines for high speed drivages

, 1999
263-268High speed driving of the in-seam headings is imperative to meet the high production targets stipulated from underground coal mines. Supporting the roof (sometimes sides or even the floors) of these headings, many a times, is the bottleneck
Rai, P, Nath, R
core  

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Intelligent inversion analysis of dilatancy angle of surrounding rock based on the force of negative Poisson's ratio anchor cable

Deep Underground Science and Engineering, EarlyView.
An intelligent inversion framework estimates the dilatancy angle of the surrounding rock from negative Poisson's ratio (NPR) anchor cable force histories. Numerical tunnel‐excavation simulations generate force data across a controlled dilatancy‐angle range, which are mapped to the target parameter using a sequential convolutional neural network (CNN ...
Li Cui, Zhihao Sun, Lei Wang, Zhenmin Qi, Jianjun Ma, Xiaoming Sun   +5 more
wiley   +1 more source

bolting

bolt vSeals in full speed when "bolting" will swim in the water at least one hundred miles per hour. Seals do not use their fore flippers when in water "bolt- ing", they keep them snug to their sides.PRINTED ITEM DNE-citDNE-citNot usedNot ...

core  

Electrolytic (C2CNT) Carbon Nanotubes Made From CO2 as an Inexpensive Carbon Sink and High‐Capacity Li‐Ion Battery Graphite Replacement

EcoEnergy, EarlyView.
Carbon‐negative carbon nanotubes produced by molten CO2 electrolysis offer a low‐cost, high‐performance alternative to graphite in Li‐ion battery anodes. Replacing conventional carbon materials with electrolytic CNTs can improve battery capacity and charging performance while reducing costs and contributing to carbon mitigation.
Gad Licht, Stuart Licht
wiley   +1 more source

Human agricultural activities influence the flowering time of turnip in the Qinghai-Tibet Plateau

Plant Diversity
Tibetan turnip and oilseeds are the most important vegetables cultivated in the Qinghai-Tibet Plateau. Our field observations identified a dominant early-bolting phenotype at the vegetative growth stage in the Tibetan turnip, which was possibly due to ...
Yan Zheng, Landi Luo, Xieshengyang Li, Qian Chen, Ya Yang, Yuanwen Duan, Xiangxiang Kong, Yongping Yang   +7 more
doaj   +1 more source

Tire Bolting Machine

, 1915
Patent for new tire-bolting machine with "a unique assemblage of component parts, to enhance the utility of the structure, and the apparatus being improved generally to increase the efficiency thereof." (lines 16-19) , including instructions and ...
McCullough, Benjamin F.
core  

Transcriptome and Metabolome Analyses Offer New Insights into Bolting Time Regulation in Broccoli

The globular buds and stems are the main edible organs of broccoli. Bolting is an important agronomic trait, and the timing of its occurrence is particularly critical when breeding and domesticating broccoli.
Linqian Kuang, Mu Zhuang, Zhansheng Li, Ke Huang, Yangyong Zhang, Limei Yang, Jialei Ji, Yue Zhang, Honghao Lv, Yong Wang, Nan Zhang   +10 more
core   +1 more source

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di, Guoliang Ma, Jiaxin Mu, Kailian Dong, Haibin Li, Manjing Wang, Xin Song, Haojin Li, Jianwei Xu, Yiying Zhao, Jingjing Zhao, Guojia Fang   +11 more
wiley   +1 more source

Novel planning pipeline utilizing the Surgical Theater system for pediatric epilepsy surgery

Epilepsia Open, EarlyView.
Abstract Objective Advances in the analysis and collation of radiographic datasets have enhanced presurgical planning for various neurosurgical procedures, including clipping of cerebral aneurysms, surgical resection of tumors, and arteriovenous malformation management.
Lisa B. E. Shields, Hunain Abri, Cemal Karakas, Shannon D. Davis, Ian S. Mutchnick   +4 more
wiley   +1 more source