Bibliografías temáticas / Lhops

Literatura académica sobre el tema "Lhops"

Autor: Grafiati

Publicado: 18 de mayo de 2024

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Artículos de revistas sobre el tema "Lhops"

Nakamura, Shingo, Naoko Ando, Masayuki Ishihara y Masahiro Sato. "Development of Novel Heparin/Protamine Nanoparticles Useful for Delivery of Exogenous Proteins In Vitro and In Vivo". Nanomaterials 10, n.º 8 (12 de agosto de 2020): 1584. http://dx.doi.org/10.3390/nano10081584.

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We previously reported that heparin/protamine particles (LHPPs) produced as nanoparticles through simple mixing of raw materials exhibit sustained protein release and can be retained in cells. In the present study, we modified LHPPs without employing any organic synthetic approach. The resulting LHPPs were re-named as improved LHPPs (i-LHPPs) and have the ability to retain cell-penetrating peptides (GRKKRRQRRRPPQ) based on electrostatic interactions. We examined whether i-LHPPs can introduce exogenous proteins (i.e., lacZ protein encoding bacterial β-galactosidase) into cultured cells in vitro, or into murine hepatocytes in vivo through intravenous injection to anesthetized mice. We found an accumulation of the transferred protein in both in vitro cultured cells and in vivo hepatocytes. To the best of our knowledge, reports of successful in vivo delivery to hepatocytes are rare. The i-LHPP-based protein delivery technique will be useful for in vivo functional genetic modification of mouse hepatocytes using Cas9 protein-mediated genome editing targeting specific genes, leading to the creation of hepatic disease animal models for research that aims to treat liver diseases.

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Kurihara, Hideyuki, Kenta Yachiyama y Chihiro Morimoto. "Classification of Marine Algae–Derived Compounds by the Mechanism Responsible for Decreasing Lipoxygenase-Catalyzed Lipid Hydroperoxides". Natural Product Communications 17, n.º 8 (agosto de 2022): 1934578X2211152. http://dx.doi.org/10.1177/1934578x221115249.

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Lipoxygenase (LOX)-mediated lipid hydroperoxides (LHPOs) are converted to physiologically active mediators. Thus, decreasing hydroperoxides is important for diminishing various health-related risks. In this study, decreasing compounds of LOX-catalyzed LHPOs were investigated and classified by mechanism using a modified triple LOX-indamine dye formation (IDF) method. The compounds 2,3-dibromo-4,5-dihydroxybenzyl methyl ether (1) and fucoxanthin (2) were isolated from algae as compounds that can decrease hydroperoxides. Along with previously isolated pheophytin a (3), a chlorophyll-related compound, and purchased nordihydroguaiaretic acid (4), a well-known lipoxygenase inhibitor, all the compounds were examined to determine the mechanisms responsible for decreasing LHPOs by using a modified triple LOX-IDF method. Compounds 1 and 4 were found to be LOX inhibitors, compound 2 was a decomposer of the produced LHPOs, and compound 3 was both an inhibitor and a decomposer of the produced LHPOs.

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Santos, Paulo H. D., Edson Bazzo, Susanne Becker, Rudi Kulenovic y Rainer Mertz. "Development of LHPs with ceramic wick". Applied Thermal Engineering 30, n.º 13 (septiembre de 2010): 1784–89. http://dx.doi.org/10.1016/j.applthermaleng.2010.04.010.

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Raftis, Jennifer, Andrew Lucking, Amanda Hunter, Mike Millar, Mike Fitzpatrick, Giora Feuerstein, David Newby y Nikhil Joshi. "Lyophilised reconstituted human platelets increase thrombus formation in a clinical ex vivo model of deep arterial injury". Thrombosis and Haemostasis 108, n.º 07 (2012): 176–82. http://dx.doi.org/10.1160/th12-02-0059.

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SummaryPlatelets are the principal component of the innate haemostatic system that protect from traumatic bleeding. We investigated whether lyophilised human platelets (LHPs) could enhance clot formation within platelet-free and whole blood environments using an ex vivo model of deep arterial injury. Lyophilised human platelets were produced from stored human platelets and characterised using conventional, fluorescent and electron microscopic techniques. LHPs were resuspended in platelet-free plasma (PFP) obtained from citrated whole human blood to form final concentrations of 0,20 and 200 × 109 LHPs/L. LHPs with recalcified PFP or whole blood were perfused through the chamber at low (212 s-1) and high (1,690 s-1) shear rates with porcine aortic tunica media as thrombogenic substrate. LHPs shared morphological characteristics with native human platelets and were incorporated into clot generated from PFP or whole blood. Histomorphometrically measured mean thrombus area increased in a dose-dependent manner following the addition of LHPs to PFP under conditions of high shear [704 μm2 ± 186 μm2 (mean ± SEM), 1,511 μm2 ± 320 μm2 and 2,378 μm2 ± 315 μm2, for LHPs at 0, 20 and 200 × 109 /l, respectively (p= 0.012)]. Lyophil-ised human platelets retain haemostatic properties when reconstituted in both PFP and whole blood, and enhance thrombus formation in a model of deep arterial injury. These data suggest that LHPs have the potential to serve as a therapeutic intervention during haemorrhage under circumstances of trauma, and platelet depletion or dysfunction.

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Xu, Mengjia, Zhi Li, Xiaogan Zhao y Wei Li. "Prebiotic Properties of Exopolysaccharides from Lactobacillus helveticus LZ-R-5 and L. pentosus LZ-R-17 Evaluated by In Vitro Simulated Digestion and Fermentation". Foods 11, n.º 16 (18 de agosto de 2022): 2501. http://dx.doi.org/10.3390/foods11162501.

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The in vitro digestion and fermentation behaviors of Lactobacillus helveticus LZ-R-5- and L. pentosus LZ-R-17-sourced exopolysaccharides (LHEPS and LPEPS) were investigated by stimulated batch-culture fermentation system. The results illustrated that LHEPS was resistant to simulated saliva and gastrointestinal (GSI) digestion, whereas LPEPS generated a few monosaccharides after digestion without significant influence on its main structure. Additionally, LHEPS and LPEPS could be consumed by the human gut microbiota and presented stronger bifidogenic effect comparing to α-glucan and β-glucan, as they promote the proliferation of Lactobacillus and Bifidobacterium in cultures and exhibited high values of selectivity index (13.88 and 11.78, respectively). Furthermore, LPEPS achieved higher contents of lactic acid and acetic acid (35.74 mM and 45.91 mM, respectively) than LHEPS (35.20 mM and 44.65 mM, respectively) during fermentation for 48 h, thus also resulting in a larger amount of total SCFAs (110.86 mM). These results have clearly indicated the potential prebiotic property of EPS fractions from L. helveticus LZ-R-5 and L. pentosus LZ-R-17, which could be further developed as new functional food prebiotics to beneficially improve human gut health.

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Tutantsev, Andrei S., Ekaterina I. Marchenko, Natalia N. Udalova, Sergey A. Fateev, Eugene A. Goodilin y Alexey B. Tarasov. "Structural Disorder in Layered Hybrid Halide Perovskites: Types of Stacking Faults, Influence on Optical Properties and Their Suppression by Crystallization Engineering". Nanomaterials 11, n.º 12 (8 de diciembre de 2021): 3333. http://dx.doi.org/10.3390/nano11123333.

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Layered hybrid halide perovskites (LHHPs) are an emerging type of semiconductor with a set of unique optoelectronic properties. However, the solution processing of high-quality LHHPs films with desired optical properties and phase composition is a challenging task, possibly due to the structural disorder in the LHHP phase. Nevertheless, there is still a lack of experimental evidence and understanding of the nature of the structural disorder in LHHPs and its influence on the optical properties of the material. In the current work, using 2D perovskites (C4H9NH3)2(CH3NH3)n−1PbnI3n+1 (further BA2MAn−1PbnI3n+1) with n = 1–4 as a model system, we demonstrate that deviations in LHHPs optical properties and X-ray diffraction occur due to the presence of continuous defects—Stacking Faults (SFs). Upon analyzing the experimental data and modeled XRD patterns of a possible set of stacking faults (SFs) in the BA2MAPb2I7 phase, we uncover the most plausible type of SFs, featured by the thickness variation within one perovskite slab. We also demonstrate the successful suppression of SFs formation by simple addition of BAI excess into BA2MAn−1PbnI3n+1 solutions.

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Wang, Peng, Fu-Cheng Liang, Daniel Wittmann, Alex Siegel, Shu-ou Shan y Bernhard Grimm. "Chloroplast SRP43 acts as a chaperone for glutamyl-tRNA reductase, the rate-limiting enzyme in tetrapyrrole biosynthesis". Proceedings of the National Academy of Sciences 115, n.º 15 (26 de marzo de 2018): E3588—E3596. http://dx.doi.org/10.1073/pnas.1719645115.

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Assembly of light-harvesting complexes requires synchronization of chlorophyll (Chl) biosynthesis with biogenesis of light-harvesting Chl a/b-binding proteins (LHCPs). The chloroplast signal recognition particle (cpSRP) pathway is responsible for transport of nucleus-encoded LHCPs in the stroma of the plastid and their integration into the thylakoid membranes. Correct folding and assembly of LHCPs require the incorporation of Chls, whose biosynthesis must therefore be precisely coordinated with membrane insertion of LHCPs. How the spatiotemporal coordination between the cpSRP machinery and Chl biosynthesis is achieved is poorly understood. In this work, we demonstrate a direct interaction between cpSRP43, the chaperone that mediates LHCP targeting and insertion, and glutamyl-tRNA reductase (GluTR), a rate-limiting enzyme in tetrapyrrole biosynthesis. Concurrent deficiency for cpSRP43 and the GluTR-binding protein (GBP) additively reduces GluTR levels, indicating that cpSRP43 and GBP act nonredundantly to stabilize GluTR. The substrate-binding domain of cpSRP43 binds to the N-terminal region of GluTR, which harbors aggregation-prone motifs, and the chaperone activity of cpSRP43 efficiently prevents aggregation of these regions. Our work thus reveals a function of cpSRP43 in Chl biosynthesis and suggests a striking mechanism for posttranslational coordination of LHCP insertion with Chl biosynthesis.

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Lee, Jih-Jong, Albert Taiching Liao y Shang-Lin Wang. "L-Asparaginase, Doxorubicin, Vincristine, and Prednisolone (LHOP) Chemotherapy as a First-Line Treatment for Dogs with Multicentric Lymphoma". Animals 11, n.º 8 (26 de julio de 2021): 2199. http://dx.doi.org/10.3390/ani11082199.

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Cyclophosphamide exhibits the weakest therapeutic effect compared with vincristine and doxorubicin in the CHOP (C, cyclophosphamide; H, doxorubicin; O, vincristine; and P, prednisolone) chemotherapeutic protocol for the treatment of canine lymphoma. Twenty dogs with multicentric lymphoma were treated using the LHOP protocol, which used l-asparaginase in place of cyclophosphamide, and the outcomes were historically compared with those of dogs that received CHOP chemotherapy in the same institution. No significant differences were found in age (p = 0.107), body weight (p = 0.051), sex (p = 0.453), clinical stage V (p = 1), substage b (p = 0.573), T-cell phenotype (p = 0.340), overall response (p = 1), and hypercalcaemia status (p = 1) between the LHOP and CHOP groups. The adverse effects of l-asparaginase were well tolerated and self-limiting. The median PFS (progression-free survival) and median ST (survival time) in the LHOP group were 344 days (range: 28–940 days) and 344 days (range: 70–940 days), respectively. The median PFS and median ST in the CHOP group were 234 days (range: 49–1822 days) and 314 days (range: 50–1822 days), respectively. The dogs that received LHOP chemotherapy had a significantly longer PFS than the dogs that received CHOP chemotherapy (p = 0.001). No significant difference was observed in ST between the LHOP and CHOP groups (p = 0.131). Our study findings thus indicate that the LHOP protocol can be used as a first-line chemotherapeutic protocol in canine multicentric lymphoma.

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Li, Yinsheng, Jing Yang, Jinxiang Chen y Jian Yin. "Study of the Heat Transfer Performance of Laminated Paper Honeycomb Panels". Biomimetics 8, n.º 1 (19 de enero de 2023): 46. http://dx.doi.org/10.3390/biomimetics8010046.

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To apply functional honeycomb panels (FHPs) in actual engineering projects, the heat transfer performance and intrinsic heat transfer mechanism of laminated honeycomb panels (LHPs, total thickness of 60 mm) with different structural parameters were investigated in this study by a heat flow meter. The results showed that (1) the equivalent thermal conductivity λequ of the LHP was almost independent of the cell size, when it consisted of a small single-layer thickness. Thus, LHP panels with a single-layer thickness of 15–20 mm are recommended. (2) A heat transfer model of LHPs was developed, and it was concluded that the heat transfer performance of LHPs depends greatly on the performance of their honeycomb core. Then, an equation was derived for the steady state temperature distribution of the honeycomb core. (3) The contribution of each heat transfer method to the total heat flux of the LHP was calculated using the theoretical equation. According to the theoretical results, the intrinsic heat transfer mechanism affecting the heat transfer performance of LHPs was revealed. The results of this study laid the foundation for the application of LHPs in building envelopes.

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Ortíz García, Edna Z. y Andrés F. Gualdrón Reyes. "Safe or risk? Impact of lead from halide perovskites in the metabolism of living organisms". BISTUA REVISTA DE LA FACULTAD DE CIENCIAS BASICAS 18, n.º 1 (10 de julio de 2021): 3–10. http://dx.doi.org/10.24054/01204211.v1.n1.2020.205.

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Indiscutiblemente, las perovskitas de haluro y plomo (LHPs) han sido consideradas como materiales promisorios en la fabricación de nuevos y eficientes dispositivos optoelectrónicos, con el fin de mejorar la captación de luz del sol y convertir esta energía en electricidad a bajo costo. Sin embargo, el conocimiento actual acerca de la toxicidad del plomo proveniente de las LHPs y su impacto ambiental es aun desconocido. En esta revisión, nosotros establecemos estudios relevantes, en donde ha sido observado la toxicidad del plomo proveniente de las LHPs, y su potencial acción en el metabolismo humano. Este hecho considera la urgencia de substituir el plomo por otros metales menos tóxicos, manteniendo o mejorando la eficiencia de fotoconversión. Esto hace que la tecnología basada en LHPs sea más atractiva a futuro, sea comercialmente rentable y competitiva a otras fuentes de energías alternativas.

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Tesis sobre el tema "Lhops"

Sharma, Deben. "Society and economy of the Lhops (Doya) of Bhutan: an ethnographic account". Thesis, University of North Bengal, 2001. http://ir.nbu.ac.in/handle/123456789/161.

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Balikci, Anna. "Buddhism and shamanism in village Sikkim". Thesis, SOAS, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289734.

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Bhutia, Kunsang Ongmu. "Bhutia (LHOPO), shamans of Sikkim : a study in change and continuity". Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4804.

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Libros sobre el tema "Lhops"

Lhops (Doya) of Bhutan: An ethnographic account. New Delhi: Akansha Pub. House, 2005.

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Nuppā, Sāṅabu Lhomī. Lhovā (Lhopā) bhāshā-sāhityako rūparekha. Kāṭhamāḍauṃ: Himālī Ādivāsi Samāja, 2013.

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Kelley, John Gormley Walsh. Skill assessment of NOS Lake Huron Operational Forecast System (LHOFS). Silver Spring, MD: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Office of Coast Survey, Coast Survey Development Laboratory, 2010.

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Capítulos de libros sobre el tema "Lhops"

Richtsfeld, Bruno J. "Ursprungsmythen der Lhopa (Bangni-Bokar) in Südost-Tibet". En Über den Alltag hinaus, 267–88. Harrassowitz Verlag, 2018. http://dx.doi.org/10.2307/j.ctv11sn4st.21.

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"Ritual in Sikkim: Expressions of Cultural Identity and Change among the Lhopos". En Proceedings of the Tenth Seminar of the IATS, 2003. Volume 2: Tibetan Borderlands, 127–56. BRILL, 2006. http://dx.doi.org/10.1163/9789047411451_009.

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"“We are the Lhopo of Sikkim. We do not have Tibetan Origins. The Tibetans are the Refugees”: Changes in the Perception of Bhutia and Tibetan Identities in Sikkim, India". En Proceedings of the Tenth Seminar of the IATS, 2003. Volume 2: Tibetan Borderlands, 157–80. BRILL, 2006. http://dx.doi.org/10.1163/9789047411451_010.

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Actas de conferencias sobre el tema "Lhops"

Hoang, Triem T., Tamara A. O’Connell, Jentung Ku, C. Dan Butler y Theodore D. Swanson. "Miniature Loop Heat Pipes for Electronic Cooling". En ASME 2003 International Electronic Packaging Technical Conference and Exhibition. ASMEDC, 2003. http://dx.doi.org/10.1115/ipack2003-35245.

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Thermal management of modern electronics has become a problem of significant interest due to the demand for power and reduction in packaging size. Requirements of next-generation microprocessors in terms of power dissipation and heat flux will certainly outgrow the capability of today’s thermal control technology. LHPs, like conventional heat pipes, are capillary pumped heat transport devices. They contain no mechanical moving part to wear out or require electrical power to operate. But unlike heat pipes, LHPs possess much higher heat transport capabilities enabling them to transport large amounts of heat over long distances in small flexible lines for heat rejection. In fact, a miniature ammonia LHP developed for a NASA space program is capable of transporting 60W over a distance of 1 meter in 1/16”O.D. stainless steel tubing. Therefore, miniature LHPs using water as the working fluid are excellent candidates to replace heat pipes as heat transports in electronic cooling systems. However, a number of operational issues regarding system performance, cost, and integration/packaging must be resolved before water LHPs can become a viable option for commercial electronics.

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Jesuthasan, Nirmalakanth y B. Rabi Baliga. "Modeling Laminar Fluid Flows in Rectangular Vapor Grooves of Evaporators Used in Loop Heat Pipes". En ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-31129.

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Loop heat pipes (LHPs) are devices in which capillary forces in a wick and liquid-vapor phase-change phenomena are used to achieve continuous and relatively high rates of transfer of thermal energy from a heat source to a heat sink. Quasi one-dimensional models of the fluid flow and heat transfer within LHPs, with empirical correlations as inputs, are commonly used as the basis of cost-effective computer simulations for the design and optimization of these devices for specific applications. The focus in this work is on laminar fluid flows in straight rectangular vapor grooves of flat evaporators used in LHPs. The pressure drops for such fluid flows are computed in available quasi one-dimensional models of LHPs using correlations for a friction factor that applies strictly only in the fully-developed region of flows in straight rectangular ducts with impermeable walls. The resulting errors can become serious if the pressure drop in the vapor grooves is a significant contributor to the overall pressure drop in the LHP. Thus, to enhance the capabilities of current quasi one-dimensional models of LHPs, more accurate correlations for predicting the aforementioned pressure drop are needed. In this work, a three-dimensional parabolic finite volume method is used to simulate laminar Newtonian fluid flows in straight rectangular vapor grooves of flat evaporators, for a representative range of LHP operating conditions. The mathematical model, computational methodology, results, and suitable correlations for the pressure drops are presented and discussed in this paper.

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Gregori, Carmen, Alejandro Torres, Ramón Pérez y Tarik Kaya. "Mathematical Modeling of Multiple Evaporator/Multiple Condenser LHPs Using EcosimPro". En International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-2174.

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Baumann, Jane y Brent Cullimore. "An Excel User Interface for Modeling LHPs in SINDA/FLUINT". En International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2004. http://dx.doi.org/10.4271/2004-01-2555.

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Hoang, Triem T. y Jentung Ku. "Heat and Mass Transfer in Loop Heat Pipes". En ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47366.

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Loop Heat Pipes (LHPs) have gained acceptance among spacecraft engineers in recent years as high performance heat transport devices for thermal control systems (TCS). However, the most common criticism from people who use LHPs is that their behavior is difficult to predict. Complex interaction of thermodynamics and fluid flow dynamics inside a LHP poses a challenge for the analytical modeling of its performance. The need for a complete understanding of mechanisms involving the heat and mass transfer in a LHP cannot be overstated. During the initial spacecraft TCS design phase, trade studies are usually carried out to select an appropriate thermal control concept for the design. The inability to accurately predict the LHP response in the actual operating environment often leads to the dismissal of LHPs for lack of certainty. This paper attempts to present a simplistic explanation of LHP operation in terms of heat and mass transfer processes, in hope that it will help the potential end-users to understand the technology better. Most of the observed phenomena described herein are based on available test data of various LHP systems. Nevertheless, a few anomalies especially during operational transients are still not well understood. For that, research ideas will also be proposed.

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Ku, Jentung, Triem Hoang y Tamara O’Connell. "Mathematical Modeling of a Miniature Loop Heat Pipe With Two Evaporators and Two Condensers". En ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88243.

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A loop heat pipe (LHP) analytical model that simulates the steady state and transient thermal behaviors of LHPs with multiple evaporators and multiple condensers has recently been developed. It can be used as a stand-alone computer code or as a subroutine to general spacecraft thermal analyzers. Multi-evaporator and multi-condenser LHPs are more complex in their operation when compared to single-evaporator LHPs because of the thermal and fluid interactions among the evaporators, compensation chambers, and condensers. This analytical model has been used to simulate the thermal performance of a miniature loop heat pipe (MLHP) with two evaporators and two condensers in laboratory and thermal vacuum tests. In addition, the MLHP was tested in the laboratory under five different configurations where the relative elevations and tilts among loop components were varied so as to investigate the gravity effects on the loop performance and to verify the analytical model’s capability to predict such effects. The MLHP performance tests that were simulated included start-up, high power, heat transport limit, and heat load sharing between the two evaporators. In all tests that were modeled, the LHP analytical model accurately predicted the steady state and transient behaviors of the LHP. Furthermore, the model was run-time efficient and yielded stable solutions in all cases.

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Remella, Karthik S., Frank M. Gerner, Ahmed Shuja y Praveen Medis. "Steady State Numerical Modeling of Non-Conventional Loop Heat Pipes (LHPs)". En ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88217.

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Loop heat pipes (LHPs) transport energy from an evaporator to a condenser in the form of latent heat. In conventional LHPs, the vapor pressure is significantly higher than the liquid pressure across the liquid-vapor interface due to the small pores and the corresponding capillary forces in the wick. This large pressure difference transports the single phase vapor after evaporation from the evaporator to the condenser and once the vapor is condensed, a single phase liquid from the condenser back to the evaporator. This current work involves the development of a steady state design model of the LHP system consisting of a planar evaporator package and a finned copper tube loop, which serves as an air-cooled condenser. Although evaporation due to the heat transfer creates the pressure in the vapor which drives the flow, contrasting to the conventional loop heat pipes, the pressure drop across the liquid-vapor interface is much smaller. A positive hydrostatic head is applied to the liquid above the wick and there is entrainment of liquid from the wick in the evaporator. Therefore, the fluid flow leaving the evaporator package is a two-phase flow, assumed to be saturated liquid and saturated vapor in equilibrium. The primary objective of this non-conventional LHP device is to remove the thermal energy dissipated from a Light Emitting Diode (LED) array. A major portion of this energy causes evaporation of the working fluid within the wick. The remaining energy reheats the liquid in both the liquid return line and within the evaporator package. The evaporator package is modeled as a one-dimensional thermal resistance network and these resistances are empirically determined from experiments. It is found that the convective heat transfer co-efficient of air plays a pivotal role in the heat dissipation and hence, is empirically determined in this work. This value is fairly agreeable with the Nusselt number correlation on the air side developed by Hahne et al. [1]. A mass balance relates the fill volume with the length of the condenser. The temperatures within the LHP are predicted by applying the principle of conservation of energy over the evaporator, the condenser and the sub-cooler sections of the heat exchanger loop. Finally, this LHP model predicts an approximate fill volume necessary for the LHP to operate properly.

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Hoang, Triem T., Tamara A. O’Connell, C. Thomas Conroy, Robert G. Mahorter, John A. Savchik y John Rosenfeld. "Development of a Gravity-Assist Water Loop Heat Pipe With Flat Evaporator for Waste Heat Removal". En ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47365.

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Use of capillary pumped heat transport devices such as heat pipes, Capillary Pumped Loops (CPLs), and Loop Heat Pipes (LHPs) are being considered for cooling of shipboard electronics. These capillary devices contain no mechanical moving parts to wear out, require no electrical power to operate, and demand virtually no maintenance. Heat pipes have been the mainstay of spacecraft thermal control systems over the past 30 years. However with limited pumping heads, heat pipes were utilized only in a few terrestrial applications. Successful demonstration of much higher pumping capability of CPLs and LHPs in recent years now makes them feasible for ground-based heat transport systems. Fluid management in a gravity environment is also much easier that the traditional design of a CPL/LHP does not really apply to terrestrial systems. In addition, a gravitational pressure head generated by a vertical distance between the condenser and evaporator can assist the capillary pumping to augment the overall pumping capability of the loop. Thus, when properly designed, a gravity-assist CPL/LHP can transport a large amount of waste heat over a long distance for dissipation.

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Rueda, Almudena, Raul Avezuela, Pedro Cobas y Ramon Pérez-Vara. "New features of EcosimPro 4.6 for the modelling and simulation of ECLSSs and LHPs". En 40th International Conference on Environmental Systems. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-6116.

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Nagai, Hiroki, Hosei Nagano, Fuyuko Fukuyoshi y Hiroyuki Ogawa. "Thermal Performance of a Miniature Loop Heat Pipe for Spacecraft Thermal Control System". En ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32805.

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The Loop Heat Pipes (LHPs) are robust, self-starting and a passive two-phase thermal control system that uses the latent heat of vaporization of an internal working fluid to transfer heat from an evaporator (the heat source) to a condenser (the heat sink). The circulation of the working fluid is accomplished by capillary pressure gradients in a fine porous wick with very small pores. LHPs are rapidly gaining acceptance in the aerospace community and several terrestrial applications are emerging as well. In the present study, a miniature LHP is investigated the thermal performance for spacecraft thermal control system. Tests will be conducted including start-up, low power, power ramp up, high power, rapid power change, and rapid sink temperature change. Finally, we want to demonstrate the potential of LHP to become the next-generation heat transfer device to cool terrestrial devices such as advanced electronic which have high power dissipations. First of all, this paper presents the influence of the gravitational forces on the LHP performance. The present tests performed under steady state condition with three different orientations (horizontal, gravity-assisted, anti-gravity).

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