Academic literature on the topic 'BLOG BLAST'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'BLOG BLAST.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "BLOG BLAST"

1

Lloyd, Albert L. "Germanic Evidence for a Neglected Indo-European Root." American Journal of Germanic Linguistics and Literatures 1, no. 1 (1989): 53–66. http://dx.doi.org/10.1017/s1470542700000064.

Full text
Abstract:
ABSTRACTAn IE root *bhel(ə)- ‘strike, hit, hew, chop’, although not included in the standard IE etymological dictionaries, is shown to underly a number of etymologically obscure Germanic words, such as OHG bolz(o) ‘bolt’, Go. bliggwan ‘to beat’, OIcel. bella ‘to hit’, blak ‘slap, blow’, OHG blast ‘a throwing to the ground’, OHG bloh, bloc ‘block of wood’, and possibly OHG balko ‘beam’. Since related words can be found in Italic, Celtic, Baltic, and perhaps also Slavic and Greek, there would seem to be sufficient justification for the addition of this root to the inventory of recognized IE roots.
APA, Harvard, Vancouver, ISO, and other styles
2

Bartelt, Perry, Peter Bebi, Thomas Feistl, Othmar Buser, and Andrin Caviezel. "Dynamic magnification factors for tree blow-down by powder snow avalanche air blasts." Natural Hazards and Earth System Sciences 18, no. 3 (2018): 759–64. http://dx.doi.org/10.5194/nhess-18-759-2018.

Full text
Abstract:
Abstract. We study how short duration powder avalanche blasts can break and overturn tall trees. Tree blow-down is often used to back-calculate avalanche pressure and therefore constrain avalanche flow velocity and motion. We find that tall trees are susceptible to avalanche air blasts because the duration of the air blast is near to the period of vibration of tall trees, both in bending and root-plate overturning. Dynamic magnification factors for bending and overturning failures should therefore be considered when back-calculating avalanche impact pressures.
APA, Harvard, Vancouver, ISO, and other styles
3

Aziz, Saeful, Qodri Hadi Putra, Aldo Brilianto, Ida Wayan Supriharta, and Rahmantha Purba Anggana. "IMPLEMENTASI METODE THROUGH SEAM BLAST DALAM MENDUKUNG OPERASIONAL PENAMBANGAN BATUBARA DI PIT C1 BLOK 8 BMO 2 PT BERAU COAL." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (2020): 337–48. http://dx.doi.org/10.36986/ptptp.v1i1.77.

Full text
Abstract:
ABSTRAK Tujuan penelitian ini adalah untuk mengetahui: (1) kelayakan metode through seam blast untuk diimplementasikan pada area interburden dan batubara tipis dengan multi-seam. (2) Pengaruh terhadap peningkatan produktivitas, percepatan sekuen penambangan, kualitas batubara, dan konservasi batubara tipis. Dalam penelitian ini penulis bersama team yang yang dibentuk (terdiri dari pihak PT. Berau Coal site BMO 2, PT. Pamapersada Site BRCB, dan PT. DNX Site BMO 2) melakukan perencanaan menggunakan siklus plan, do, check, action (PDCA) terkait metode through seam blast dimana plan didukung dengan pendekatan konsep specipic, measurable, achievable, realistic dan timely (SMART). Pengumpulan data dilakukan dengan melakukan empat kali trial through seam blast. Hasil penelitian menunjukan bahwa : 1) Metode Through Seam Blast memungkinkan diimplementasikan di Pit C1 Blok 8 BMO 2 PT Berau Coal. (2) Terjadi peningkatan produktivitas alat gali muat sebesar 35 bcm/jam pada kelas PC-1200, mengurangi frekuensi blasting dari 2-3 kali menjadi 1 kali pada luasan area yang sama, adanya deviasi ash batubara tertambang (terhadap as batubara insitu) yang masih masuk dalam toleransi sebesar 2.75%, mine recovery tetap terjadi ≥98%. Kata kunci: through seam blast, produktivitas alat gali muat, frekuensi blasting, kualitas batubara, mine recovery ABSTRACT The purpose of this study is to determine: (1) the feasibility of the through seam blast method to be implemented in inter burden areas and thin coal with multi-seam. (2) Effects on increasing productivity, acceleration of mining sequences, coal quality, and conservation of thin coal. In this study the authors together with the team formed (consisting of PT. Berau Coal site BMO 2, PT. Pamapersada Site BRCB, and PT. DNX Site BMO 2) do the planning using the related cycle plan, do, check, action (PDCA) a through seam blast method where the plan is supported by a specific, measurable, achievable, realistic and timely (SMART) concept approach. Data collection was carried out by conducting four trial through seam blasts. The results showed that: 1) Through Seam Blast method is possible to be implemented in Pit C1 Block 8 BMO 2 PT Berau Coal. (2) An increase in the productivity of the loading and unloading tool by 35 bcm / hour in PC-1200 class, reducing the frequency of blasting from 2-3 times to 1 time in the same area, the deviation of mined coal ash (against the coal as in situ) still within tolerance of 2.75%, mine recovery still occurs ≥98%. Keywords: through seam blast, digger productivity, blasting frequency, coal quality, mine recovery
APA, Harvard, Vancouver, ISO, and other styles
4

Sazonov, S. I., N. S. Shubravyi, A. V. Knyshenko, M. D. Zhembus, A. V. Sukhomlin, and S. A. Kovalenko. "Forced blow-in of a blast furnace." Metallurgist 34, no. 12 (1990): 281. http://dx.doi.org/10.1007/bf00750118.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hayda, Roman, Robert M. Harris, and Cameron Dale Bass. "Blast Injury Research." Clinical Orthopaedics and Related Research 422 (May 2004): 97–108. http://dx.doi.org/10.1097/01.blo.0000128295.28666.ee.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Langworthy, Michael J., John Sabra, and Mark Gould. "Terrorism and Blast Phenomena." Clinical Orthopaedics and Related Research 422 (May 2004): 82–87. http://dx.doi.org/10.1097/01.blo.0000128293.43913.ca.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Di Stefano, Carla, Marco Tafani, Bruna Pucci, et al. "A Distinctive Pattern of Different Gene Expression in Chronic Myelogenous Leukemia Patients." Blood 112, no. 11 (2008): 4231. http://dx.doi.org/10.1182/blood.v112.11.4231.4231.

Full text
Abstract:
Abstract Introduction: Molecular chaperones have many functions, such as protecting other proteins against aggregation, assisting in folding of nascent proteins/refolding of damaged proteins and targeting severely damaged proteins to degradation. As one of the molecular chaperones, Hsp90 functions to facilitate the folding of newly synthesized and denatured client proteins, including mutated p53, Bcr-Abl, p185ErbB2 and Raf-1. The Bcr-Abl fusion gene encodes for the p210Bcr-Abl tyrosine kinase (TK) implicated in the pathogenesis of chronic myelogenous leukemia (CML). Studies in cultured cells have identified many signal transduction pathways activated by Bcr-Abl, including activation of the Ras, MAPK, JNK/SAPK, phosphatidylinositol-3 kinase, nuclear factor-B and STAT pathways. Imatinib mesylate (imatinib IM) is a tyrosine kinase inhibitor that competitively inhibits ATP binding in the kinase domains of both the Bcr-Abl and c-Abl kinases. It has been suggested that resistance to imatinib stems from Bcr-Abl gene amplification, leading to overexpression of Bcr-Abl protein or point mutations in the Bcr-Abl gene However, several groups suggested that there might be other forms of Bcr-Abl-independent imatinib resistance Recently, it has been reported that changes in histone deacetylase (HDAC) expression in leukemic cells could be involved in mechanisms for abnormal cellular proliferation that operate through chromatin-independent pathways and thereby could lead to acquired drug resistance of the cells In the present study, we evaluated in primary leukemic blasts, obtained from chronic myelogenous leukemia patients at onset, patients in blast crisis and patients which were imatinib-resistant The espression the sirtuin members family and HSP70, HSP90 i-NOS and bcl-2 was evaluated by Nortern blot and Western blot analysis. Material and Methods: Primary leukaemia blasts We harvested primary blast rich mononuclear cells were obtained by gradient centrifugation on ficoll-hypaque of bone marrow and peripheral blood cells after obtaining appropriate informed consent. Northern blot Total RNAs from control or treated cells were isolated using Tri Reagent Aliquots of RNA were electrophoresed and blotted onto nylon membranes, that hybridized to 32P-labelled probe. Western Blot Cells were lysed and. then were centrifugated. Protein concentration was determined by the Bradford assay.. Equivalent amounts of protein loaded and electrophoresed and were transferred to nitrocellulose membranes, that were incubated with the different primary antibodies:, Result and Discussion:. In the present study, we evaluated a pattern of different gene expression by Northern Blot and Western Blot analysis in bone marrow and peripheral blood cells from 16 CML patients at onset, from 2 patients in blast crisis evolved under IM treatment, and 14 imatinib-resistant patients. Some RNAs were underexpressed in most or all samples tested and never overexpressed (eg SIRT2, SIRT3, SIRT4 and SIRT5), while others were overexpressed in the great majority of samples and rarely, if ever, underexpressed (eg SIRT1, SIRT7, HSP90, iNOS)Furthermore, we examined the level of heat-shock related proteins HSP90 and bcl-2 in 2 patients during treatment with IM. and one patient IM-resistant by western Blot analysis: HSP90 and BCl-2 increased one patient during treatment with IM, while both protein levels was very high in one one patient IM-resistant These results suggest that the difference of genes expression might contribute to patterns of clinical response.
APA, Harvard, Vancouver, ISO, and other styles
8

Rostovskii, A. V., A. E. Paren’kov, V. N. Loginov, G. G. Gavrilyuk, and M. A. Al’ter. "Optimum technologies for the blow-in of blast furnaces." Metallurgist 42, no. 6 (1998): 212–15. http://dx.doi.org/10.1007/bf02765996.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sinha, Pankhuri, Goutam Mukhopadhyay, and Sandip Bhattacharyya. "Investigation on Bulging of Blow Pipe in a Blast Furnace." Journal of Failure Analysis and Prevention 13, no. 3 (2013): 257–63. http://dx.doi.org/10.1007/s11668-013-9666-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Shafat, Manar S., Matthew E. Fenech, Amina M. Abdul-Aziz, Jeremy Turner, Kristian M. Bowles, and Stuart A. Rushworth. "FABP4 Regulates Fatty Acid Transfer from Bone Marrow Adipocytes to Acute Myeloid Leukemia Blasts." Blood 126, no. 23 (2015): 3065. http://dx.doi.org/10.1182/blood.v126.23.3065.3065.

Full text
Abstract:
Abstract Introduction The incidence of acute myeloid leukemia (AML) is strongly related to age with poor survival rates in the elderly population. AML blasts isolated from the bone marrow undergo spontaneous apoptosis in culture suggesting its microenvironment in the bone marrow (BM) contains cells and factors favorable to the progression of the disease. The BM microenvironment consists of many cell types not directly of the hematopoietic lineage, including bone marrow adipose tissue (MAT), which accounts for circa 50% of the BM volume in the axial skeleton of adults. We hypothesize that MAT may contribute to the cancerous hallmarks exhibited by the AML blasts in the bone marrow. Here we examine the relationship between cancer associated MAT and AML blast survival and proliferation. We describe how this association favors the survival of AML blasts by the transfer of free fatty acids (FFA) released from MAT to AML blasts via the chaperone protein fatty acid binding protein 4 (FABP4). We also show FABP4 to be a critical player in fatty acid transport and therefore the survival of AML blasts in the bone marrow. Methods To investigate the role of MAT in regulating AML survival we used primary AML blasts and marrow derived adipose tissue obtained from patient's bone marrow following an informed consent. MAT was co-cultured with primary AML blasts in vitro and the proliferation and survival of the blasts was determined by BrdU incorporation and Annexin V/PI staining respectively. Immunocytochemistry using lipid specific dye, CD34 antibody and nuclear staining was performed to determine lipid storage in primary AML blasts. Western blot analysis was used to determine the level of phosphorylated hormone sensitive lipase (HSL) and fatty acid binding protein 4 (FABP4) in adipocytes. ß oxidation in AML blasts was determined by transcript levels of CPT-1a and ACOX-1. FABP4 concentration was also assayed in MAT and MAT/AML co-cultures by ELISA. Adipocyte FABP4 was knocked down by shRNA and a small molecule inhibitor (BMS309403) was used for pharmacological inhibition. Results Results show that in vitro primary AML blasts demonstrate increased survival and proliferation when co-cultured on MAT. Immunocytochemistry using lipid specific dye on CD34+ primary AML blasts revealed presence of neutral lipids within the blasts, which following a 48 hour incubation in monoculture was significantly depleted. Primary AML blasts/MAT co-cultivation caused lipid accumulation in AML blasts and lipolysis of MAT indicated by increased levels of glycerol and FFA in the co-culture media compared to control. Immunoblotting of co-cultured MAT showed increased levels of lipolysis associated factors, phosphorylated HSL and perilipin with a decreased expression of FABP4 compared to MAT monocultures. An apparent increase in ß oxidation was also revealed in AML blasts indicated by the transcriptional activation of ß oxidation related genes. FABP4 MAT transcript levels were shown to increase significantly suggesting an increased production and subsequent trafficking of FABP4 from MAT. Pharmacological inhibition and shRNA mediated knock-down of FABP4 showed a significant decrease in survival and proliferation of AML blasts cultured with adipocytes. Finally investigations also revealed that AML blasts cultured with adipocytes had depleted lipid accumulation in response to FABP4 inhibition. Conclusion Here we report that lipid trafficking between MAT and AML supports survival and proliferation of the leukemic blasts in-vitro. We show that FABP4 is transcriptionally up-regulated in both AML and MAT which mediates the transport of FFA from adipocytes to the leukemic blast. Furthermore, the inhibition of FABP4 significantly reduces AML survival. Together, our data shows evidence for the relationship between MAT and AML blasts by fatty acid transfer identifying FA metabolism as a potential therapeutic target for this aggressive disease. Disclosures No relevant conflicts of interest to declare.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "BLOG BLAST"

1

Kalianková, Kateřina. "Znakově-orientované metody DNA barcodingu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-220729.

Full text
Abstract:
This work deals with character-based DNA barcoding. DNA barcoding and character-based DNA barcoding methods are described in the introduction. Another part contains information of method CAOS (Characteristic Attributes Organization) and method BLOG (Barcoding with LOGic). Programs are described in the practical part. The end contains results.
APA, Harvard, Vancouver, ISO, and other styles
2

Keng-MingWu and 吳耿名. "The Use of Lean Management Principles for the Blast Furnace Blow-in Preparation Process from Iron-making Manufacturing." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/92334249054541426706.

Full text
Abstract:
碩士<br>國立成功大學<br>工程管理碩士在職專班<br>103<br>Steel industry is one of the important foundation industries, it also significantly affect Taiwan's economic. In this case study, the steel company has four blast furnaces, each furnace shuts down every four months for regularly repair. Therefore, shortening the blow-in preparation time can save costs and increase productivity. This study that based on lean management principle uses value stream map and 5S method to remove the waste of the blast furnace blow-in preparation process from Iron-making manufacturing. Comparing the current-state value stream map with future-state value stream map shows the lead time is shorten from 92.3 minutes to 65.6 minutes, and the manpower is saved from 12 persons to 6 persons. After implement Seiri and Seiton, people put the mark on the stuff for name, limit of inventory and location. Thus, operator can easily find tools and work faster. Doing Seisou and Seiketsu keeps work site clean and clear. People can work in a comfortable condition and feel respected. In conclusion, this study tries to prove that lean management principle can also be used in steel industry which is a large-volume and small-variety production to shorten the blast furnace blow-in preparation time. If top management determine to introduce lean management principle into company and make a successful case to be a model, lean thinking can be spread in the others field. Therefore, the waste will be eliminated and the competitive power will be enhanced.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "BLOG BLAST"

1

Neenan, Thomas. Let's blow thru Europe: How to have a blast on your whirlwind trip through Europe. Mustang Pub., 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Boone, Brian. Hysterical Jokes for Minecrafters: Blocks, Boxes, Blasts, and Blow-Outs. Skyhorse Publishing Company, Incorporated, 2017.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Boone, Brian. Hysterical Jokes for Minecrafters: Blocks, Boxes, Blasts, and Blow-Outs. Skyhorse Publishing Company, Incorporated, 2017.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sercombe, Andrew. Ten Sticks of Dynamite: To Blow Up Your Boredom, to Blast Your Mediocrity, or Just to Boot You Out of Bed. Lion Publishing PLC, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "BLOG BLAST"

1

Schäfer-Prieß, Barbara. "‚Blau‘, ‚blass‘ und ‚blond‘ Zu Bedeutung und Etymologie von altfranzösisch blo/bloi." In Farbe im Mittelalter, edited by Ingrid Bennewitz and Andrea Schindler. AKADEMIE VERLAG, 2011. http://dx.doi.org/10.1524/9783050056494-023.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

"Investigation on Bulging of Blow Pipe in a Blast Furnace." In Handbook of Case Histories in Failure Analysis. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.v03.c9001850.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "BLOG BLAST"

1

Bertolotto, Edoardo, Alberto Amato, and Li Guoqiang. "Atmospheric Tests of a Full Scale Gas Turbine Burner Fed With Blast Furnace Gas and Coke Oven Gas." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91360.

Full text
Abstract:
Abstract The present paper describes atmospheric experimental tests of a new Ansaldo Energia full scale burner which was designed to burn fuels byproduct of steel making processes (mixtures of Blast-Furnace Gas (BFG) and Coke-Oven Gas (COG)), characterized by very low heating values (LHV∼2–3.5 MJ/kg) and very low stoichiometric air/fuel ratios (∼0.5–1 kg/kg). In particular, flame stability and blow-out margins were assessed for different burner variants and fuel compositions such as pure BFG, blends of BFG with increasing content of COG, and also a synthetic mixture of natural gas, hydrogen and nitrogen (NG/H2/N2). Except for pressure, all burner inlet conditions were simulated as in the actual gas turbine engine. The best performing burner among those tested demonstrated an excellent burning stability behavior over a wide operating range and stably burned pure BFG without any supplementary fuel. Furthermore, considering that in most operating concepts gas turbine engines for Ultra-Low BTU applications require a back-up fuel (such as oil, propane or natural gas) to ignite and ramp up or to perform load-rejections, the present atmospheric tests also assessed maneuvers to switch from natural gas operation to syngas operation. Also in this type of dual-fuel operation the burner demonstrated a wide flame stability range.
APA, Harvard, Vancouver, ISO, and other styles
2

Alavandi, Sandeep K., Shahrokh Etemad, and Benjamin D. Baird. "Fuel Flexible Rich Catalytic Lean Burn System for Low BTU Fuels." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94585.

Full text
Abstract:
Limited fuel resources, increasing energy demand, and stringent emission regulations are drivers to evaluate process off-gases or process waste streams as fuels for power generation. Often these process waste streams have low energy content and their operability in gas turbines leads to issues such as unstable or incomplete combustion and changes in acoustic response. Due to above reasons, these fuels cannot be used directly without modifications or efficiency penalties in gas turbine engines. To enable the use of the wide variety of ultra-low and low Btu fuels in gas turbine engines, a rich catalytic lean burn (RCL®) combustion system was developed and tested in a subscale high pressure (10 atm.) rig. Previous work has shown promise with fuels such as blast furnace gas (BFG) with Lower Heating Value (LHV) of 3.1 MJ/Nm3 (85 Btu/scf). The current testing extends the limits of RCL® operability to other weak fuels by further modifying and improving the injector to achieve enhanced flame stability. Fuels containing low methane content such as weak natural gas with an LHV of 6.5 MJ/Nm3 (180 Btu/scf) to fuels containing higher methane content such as landfill gas with an LHV of 21.1 MJ/Nm3 (580 Btu/scf) were tested. These fuels demonstrated improved combustion stability with an extended turndown (defined as the difference between catalytic and non-catalytic lean blow out) of 140°C–170°C (280°F–340°F) with CO and NOx emissions lower than 5 ppm corrected to 15% O2.
APA, Harvard, Vancouver, ISO, and other styles
3

Yang, Jinhu, Cunxi Liu, Haowei Wu, et al. "Experimental Investigation of Ignition and LBO Characteristics of SPP Injector: The Effect of Pilot Stage Air Split Ratio." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76282.

Full text
Abstract:
The influence of PASR (Pilot stage Air Split Ratio) on the ignition and LBO (Lean Blow Out) performances is experimentally investigated for an SPP (Stratified Partially Premixed) injector in this paper. The pilot stage of the SPP injector comprises two axial air swirlers as well as an air blast prefilm atomizer for pilot fuel preparation. It is believed that the variation of the air split ratio between the outer swirler and the inner swirler of the pilot stage will transform the flow structure and fuel distribution of the local flame anchoring zone, and consequently improves or deteriorates the stability of the pilot flame. The ignition and LBO characteristics were measured for PASR = 8:2, 7:3 and 6:4, and several inexplicable but interesting results are observed. In order to make out the underlying reasons for the differences of the obtained ignition and LBO data, the velocity field and spray concentration at the meridian plane were acquired experimentally with the help of optical diagnostics at isothermal conditions. It it concluded that two dominant mechanisms of flame stability exist depending on the range of the injector pressure drop (Δ Psw/P3t). At low pressure drop of the injector, the flame stability is mainly affected by the fuel distribution, however, the flow structure will play a more important role at high Δ Psw/P3t in that it can transform the local flow structures around the pilot flame root. The inherent correlations between the combustion stability and the flow structure as well as the fuel distribution are disscussed and conclusions are drawn for this research work in the end of this paper.
APA, Harvard, Vancouver, ISO, and other styles
4

Gong, Jing, Yuzhen Lin, Quanhong Xu, and Gaoen Liu. "Investigation of Combustion Performance of a Hybrid Airblast Atomizer Under Simulated Low Power Conditions." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68219.

Full text
Abstract:
An aero gas turbine combustor has to meet requirements for both high and low power condition operation. Within the requirements for low power conditions, lean-blow-out (LBO) and combustion efficiency are the basic ones. A pure prefilming air blast atomizer may have difficulty meeting combustion requirements under low power conditions, such as, idle LBO, idle combustion efficiency, etc. Use of a hybrid airblast atomizer may offer a solution for such problems. A hybrid airblast atomizer is a single fuel injection unit that has both pilot and main fuel circuits. A simplex nozzle is often used for pilot fuel circuit and an airblast atomizer of the swirl cup type may be used for the main fuel circuit. For the main fuel circuit, fuel is injected from a number of plain jet holes. The fuel jets are injected towards a venturi, with the help of swirling air from another air swirler, and the main fuel is airblasted and well mixed with both swirler airflows. For low power conditions, the pilot fuel nozzle (simplex nozzle) works alone. Not all of the swirler air will mix with pilot nozzle fuel spray. With appropriate pilot nozzle pressure drop and with some airblast function, the pilot fuel is well atomized and does not fully mix with the swirler air nor with primary hole air. Thus, the low power condition combustion efficiency is improved. The investigation reported in the present paper has concentrated on hybrid atomizer combustion performance under simulated low power conditions, when only the pilot nozzle is operating. The study consists of the following parts: • Pilot nozzle drop size measurement; • Numerical simulation of combustor flow field; • Atmospheric ignition test; • Simulated idle condition LBO test; • Low power condition combustion efficiency test. Results are reported, and future work is defined.
APA, Harvard, Vancouver, ISO, and other styles
5

Hashemi, Siavash, Sharlin Anwar, Shahab Mansoorbaghaei, and Ali M. Sadegh. "The Influence of Sulci Trabeculae in Mitigating Impact Induced TBI." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70905.

Full text
Abstract:
Traumatic brain injury (TBI) is an intracranial injury caused by impacts or angular accelerations of the head such as a violent blow, a bump, a projectile, or even a blast. TBI is a major problem that accounts for over 1.4 million emergency room visits in US. Thus, it is important to understand and predict the occurrence of TBI. Previous studies have shown that the interaction between the subarachnoid space (SAS) trabeculae and the cerebrospinal fluid (CSF) plays an important role in damping the effect of impacts and reducing the brain injuries. However, the influence of sulci parameters and sulci trabeculae in impact induced TBI is still unexplored. A few studies have shown that inclusion of sulci in brain models alters the brain injuries conclusions, even though those models do not take into account the trabecular tissue present in the sulci. In this study, to obtain a perspective of the morphology and architecture of the sulci trabeculae at the frontal lobe of the brain, Human cadaver brain of an 87 year old male was used. For the first experiment, several sulci from the frontal lobe were sectioned and measured to find the average sulci depth, using the image processing software called ‘ImageJ’. This experiment was followed by the Scanning Electron Microscopy (SEM) study on the samples prepared from the frontal lobe. Indeed, numerous images were taken at various magnifications to find different trabecular morphology and architecture in the sulci. The results from the experimental studies were used in our numerical analyses. To do so, the validated global 3D FE model of the human head and neck, created at The City College of New York, were impacted by a rigid barrier on the forehead. The pressure time history, beneath the skull, was calculated during and after the impact. Moreover, a local 3D FE model has been created, having the meninges and the brain with sulci, including the trabeculae and the CSF. The depth of the sulci and the architecture of the trabeculae have been inspired by the imaging and SEM studies. Indeed, the top surface of the local model was subjected to the pressure loading condition obtained from the global model. The results of the finite element simulations reveal that the interaction between the trabeculae and the CSF inside the sulci, would affect and reduce the movement and displacement of gyri and sulci’s walls when the forehead of the head is impacted by an elastic barrier.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography