Nippon Dragon's thermal fragmentation tech gets to work …
Nippon Dragon Resources says it is using its thermal fragmentation technology on the Talus vein at its Rocmec 1 gold mine, in Quebec, Canada. In a progress report this week, Nippon Dragon said thermal fragmentation operations had begun on the Talus vein – "probably a secondary sub parallel branch structure to the McDowell vein", …
Thermal fragmentation and deactivation of combustion …
The effect of thermal treatment on diesel soot and on a commercial soot in an inert environment under isothermal conditions at intermediate temperatures (400–900 °C) is studied. Two important phenomena are observed in both the soot samples: soot fragmentation leading to its mass loss, and loss of soot reactivity towards O 2.Several …
Thermal fragmentation and deactivation of combustion-generated soot
The effect of thermal treatment on diesel soot and on a commercial soot in an inert environment under isothermal conditions at intermediate temperatures (400–900 °C) is studied.Two important phenomena are observed in both the soot samples: soot fragmentation leading to its mass loss, and loss of soot reactivity towards O 2.Several …
A framework for integrating thermal biology into …
However, few studies explore temperature as a mechanism driving ecological responses to fragmentation. Here we offer a conceptual framework that integrates thermal biology …
A framework for integrating thermal biology into fragmentation …
Habitat fragmentation changes thermal conditions in remnant patches, and thermal conditions strongly influence organism morphology, distribution, and activity patterns. However, few studies explore temperature as a mechanism driving ecological responses to fragmentation. Here we offer a conceptual framework that integrates thermal biology …
Alkynogenic fragmentation
Fragmentation reactions in synthetic organic chemistry involve substrates breaking into three or more pieces (fragments), adding degrees of unsaturation into two or more parts. Most examples of fragmentation reactions generate alkenes from saturated substrates. Those fragmentation reactions that generate alk 2019 Organic Chemistry Frontiers …
Low-rank coal drying behaviors under negative pressure: Thermal
Negative Pressure Drying (NPD) is new alternative technique for Low Rank Coal (LRC) drying. In this work, the dehydration, thermal fragmentation and volumetric shrinkage behaviors of LRC under a sustained environment of 423 K and 20 kPa were studied. The correlations of these behaviors were analysed, and the mechanism of …
Influence of coupled factors on premixing and fragmentation …
Peng et al., 2015, Lin et al., 2009 demonstrated the periodicity and circularity of thermal fragmentation. The results obtained in this study under different initial water levels and initial mass provide useful information to substantiate that the premixing process has similar characteristics of periodicity and circularity ...
Thermal Fragmentation as a Possible, Viable, Alternative
The research data presented suggests that thermal fragmentation could be a viable alternative for narrow vein mining. In comparison to shrinkage stoping, thermal …
A framework for integrating thermal biology into fragmentation research
Introduction. Habitat fragmentation is one of the greatest contributors to biodiversity loss worldwide (CBD 2010) and increasing rates of fragmentation underscore the importance of understanding the full spectrum of its ecological consequences (Haddad et al. 2015).Fragmentation can be defined as the division of once-continuous habitat …
Thermal Fragmentation as a Possible, Viable, …
Overall, the thermal fragmentation method is shown to in- crease NPV by $429,828, or 6.17%, when compared with the shrinkage stoping method. 4 Conclusions. The research data presented suggests that thermal fragmenta- tion could be a viable alternative for narrow vein mining. In comparison to shrinkage stoping, thermal fragmentation re- …
A Thermal Fragmentation Model Induced by Surface …
Only in the TEXAS code, a fragmentation model considering thermal fragmentation mechanism is introduced. This ther-mal fragmentation model is developed by Kim,10) based on the mechanism that the vapor film collapse is triggered by ex-ternal force (pressure pulse) and coolant jets impinge on the melt droplet surface.
Thermal Fragmentation: Update on the Exclusive Licensing …
Brossard, Quebec / ACCESSWIRE / January 26, 2015 / Nippon Dragon Resources Inc. (the "Corporation" or "Nippon") (TSX-V Symbol: NIP), is pleased to provide an update on the exclusive ...
Bringing the heat: thermal fragmentation comes of age
Habitat fragmentation changes thermal conditions in remnant patches, and thermal conditions strongly influence organism morphology, distribution, and activity patterns. …
Thermal fragmentation and pulverization properties of …
ABSTRACT. The fragmentation and pulverization properties of lignite in the different drying processes were investigated in this study. Lignite particles were dried at different temperatures (100, 140, and 180°C), particle sizes (6–25 mm) and drying time (0–60 min), and the parameters of fragmentation index (S f) and pulverization ratio (β) …
Thermal fragmentation enhanced identification and …
Notably, we find that a simple thermal pretreatment at 380 °C can facilitate the fragmentation of PS and significantly enhances the intensities of fingerprint peaks …
Unimolecular thermal fragmentation of ortho -benzyne
A barrier of this magnitude is consistent with the experimental results. A careful assessment of the thermochemistry for the high temperature fragmentation of benzene is presented: C 6 H 6 → H + [C 6 H 5] → H + [o-C 6 H 4] → H C C H + H C C – C C H . Benzyne may be an important intermediate in the thermal decomposition of many ...
Megha-Tropiques-1 Satellite
Aero-Thermal Fragmentation is a process in which an object traveling through the Earth's atmosphere at high-speed experiences extreme heat and pressure, causing it to break apart or fragment. …
Full article: An experimental study on the intense heat …
Where ρ l is the density of water, u is the melt-water relative velocity, D d is the droplet diameter, and σ is the surface tension of the droplet. The thermal mechanism is largely related to the destabilization of the vapor film that surrounds the melt droplet so that direct contact between water and melt is established, driving the fine fragmentation of …
Thermal fragmentation and deactivation of combustion …
The mass loss of soot samples during thermal treatment is mainly due to the following factors (Chung and Violi, 2011;Raj et al., 2014;Wang, 2011): the thermal fragmentation caused by thermal ...
Direct Dynamics Simulations of the Thermal Fragmentation …
Arginine has significant effects on fragmentation patterns of the protonated peptide due to its high basicity guanidine tail. In this article, thermal dissociation of the singly protonated glycine-arginine dipeptide (GR-H+) was investigated by performing direct dynamics simulations at different vibrational temperatures of 2000–3500 K. Fourteen principal …
Implication of processing and differential blending on …
The present study was focused on the development of nutritionally enriched ketchup (Nutri-ketchup) from acerola and tomato and evaluation of the effect of blending and processing on physicochemical characteristics, phytonutrients retention, antioxidant …
Thermal fragmentation enhanced identification and …
The different ionization behaviors enable the differentiation of MNPs with different molecular weights. Notably, we find that a simple thermal pretreatment at 380 °C can facilitate the fragmentation of PS and significantly enhances the intensities of fingerprint peaks in low-mass regions, yielding a detection limit of 25 ng for PS MNPs.
Thermal fragmentation enhanced identification and …
Here we present a simple, rapid, and effective method for identification and quantification of micro/nanoplastics (MNPs) based on thermal fragmentation and …
Urban fragmentation approach for assessing thermal
Section 6 concludes the study and includes the importance and usefulness of LULC, LST, thermal comfort evaluations, and the relevance of urban fragmentation in thermal comfort studies. The study findings may aid insights related to climate-sensitive and thermally comfortable urban planning and decision-making in medium-sized Indian …
Thermal fragmentation tech readying for mining upswing
"Thermal fragmentation is a continuous mining method that does not rely on explosives. Soft explosives can, however, be used to break out any vein or rock remaining between the thermal holes ...
Development of an alternative laboratory method to determine thermal
In an effort to optimize the experimental procedure the influence of time was evaluated. It was found that most of the fragmentation occurred within 60. min and so all further investigations were limited to a 60 min duration.. The shortened method takes between 3 and 4 h per experiment if cooling and sample work-up are included. 3.2.
Thermal Interaction Between Molten Metal and Sodium: …
Thermal fragmentation originating inside the molten copper jet with a solid crust was clearly observed in all runs. It is verified that a small quantity of sodium, which is locally entrained inside the molten jet due to the organized motion between the molten jet and sodium, is vaporized by the sensible heat and the latent heat of molten copper ...
Thermal fragmentation and deactivation of combustion …
The effect of thermal treatment on diesel soot and on a commercial soot in an inert environment under isothermal conditions at intermediate temperatures (400-900°C) is studied. Two important phenomena are observed in both the soot samples: soot fragmentation leading to its mass loss, and loss of soot reactivity towards O2.
Thermal Fragmentation of a Molten Metal Jet Dropped …
of thermal fragmentation originating inside the jet is induced even in the case of a molten metal jet dropped into a sodium pool at Tis below its freezing point. Furthermore, the au-thors show that the experimental results obtained by Gabor et al.6) are also qualitatively explained by the thermal interac-