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A study was made of the time course of changes in gastrin, insulin and ACTH concentration in the peripheral blood in the course of the development of a specific dynamic food action. Eighteen normal subjects and 78 patients with peptic ulcer, chronic gastritis and chronic enterocolitis were entered into the study. It was demonstrated that apart from digestion stimulation, food intake acted as the most important factor changing the hormonal level in the body. Studies of the blood level of hormones in the course of food intake in patients allowed the detection of various deviations from normal occurring in hormonal secretion. 相似文献
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Evgeniya I. Volkova Alexander V. Vakhrushev Mikhail Suyetin 《International Journal of Hydrogen Energy》2014
A multiscale theoretical technique is used to examine the combination of different approaches for hydrogen storage enhancement in metal-organic frameworks at room temperature and high pressure by implementation lithium atoms in linkers. Accurate MP2 calculations are performed to obtain the hydrogen binding sites and parameters for the following grand canonical Monte Carlo (GCMC) simulations. GCMC calculations are employed to obtain the hydrogen uptake at different thermodynamic conditions. The results obtained demonstrate that the combination of different approaches can improve the hydrogen uptake significantly. The hydrogen content reaches 6.6 wt% at 300 K and 100 bar satisfying DOE storage targets (5.5 wt%). 相似文献
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The processes of methane adsorption, storage and desorption by the nanocapsule are investigated with molecular-dynamic modeling
method. The specific nanocapsule shape defines its functioning uniqueness: methane is adsorbed under 40 MPa and at normal
temperature with further blocking of methane molecules the K@C601+ endohedral complex in the nanocapsule by external electric field, the storage is performed under normal external conditions,
and methane desorption is performed at 350 K. The methane content in the nanocapsule during storage reaches 11.09 mass%. The
nanocapsule consists of tree parts: storage chamber, junction and blocking chamber. The storage chamber comprises the nanotube
(20,20). The blocking chamber is a short nanotube (20,20) with three holes. The junction consists of the nanotube (10,10)
and nanotube (8,8); moreover, the nanotube (8,8) is connected with the storage chamber and nanotube (10,10) with the blocking
chamber. The blocking chamber is opened and closed by the transfer of the K@C60
1+ endohedral complex under electrostatic field action. 相似文献
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Alexander Vakhrushev Abdellah Kharicha Menghuai Wu Andreas Ludwig Gerald Nitzl Yong Tang Gernot Hackl Josef Watzinger Christian M.G.Rodrigues 《钢铁研究学报(英文版)》2022,(1):88-102
A funnel-type mold is commonly used to provide necessary clearance for the submerged entry nozzle in the thin slab casting(TSC).The partially solidified shell i... 相似文献
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A. M. Bakhmet’ev M. A. Bol’shukhin V. V. Vakhrushev A. M. Khizbullin O. V. Makarov V. V. Bezlepkin S. E. Semashko I. M. Ivkov 《Atomic Energy》2009,106(3):185-190
Equipping new-generation nuclear power plants with passive means for controlling unanticipated accidents is one of the most
promising directions for increasing safety, which is being implemented in the AES-2006 design for the site of the Leningradskaya
nuclear power plant. An urgent problem is to obtain experimental validation of the passive system for removing heat from the
protective envelope during unanticipated accidents with loss of coolant from the first loop in the case where the active systems
fail. A particularity of the system is its state of constant readiness. The system functions with natural circulation of the
coolant in both loops. Considering the importance of the passive heat removal system for ensuring the localizing properties
of the protective envelope, OKBM Afrikantov has developed a large-scale stand and performed experimental investigations on
validation of the effectiveness and serviceability of the cooling loop of a passive system for removing heat from the protective
envelope.
Translated from Atomnaya énergiya, Vol. 106, No. 3, pp. 148–152, March, 2009. 相似文献
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Heber Ivan Condori Leandro Elena G. Koshevaya Lubov B. Mitrofanova Aleksandr D. Vakhrushev Natalia S. Goncharova Lev E. Korobchenko Elizaveta M. Andreeva Dmitry S. Lebedev Evgeny N. Mikhaylov 《International journal of molecular sciences》2021,22(16)
Background: Pulmonary artery denervation (PADN) is an evolving interventional procedure capable to reduce pulmonary artery (PA) pressure. We aimed to compare PA nerve distribution in different specimens and assess the feasibility of an ovine model for a denervation procedure and evaluate the acute changes induced by laser energy. Methods: The experiment was divided into two phases: (1) the analysis of PA nerve distribution in sheep, pigs, and humans using histological and immunochemical methods; (2) fiberoptic PADN in sheep and postmortem laser lesion characteristics. Results: PA nerve density and distribution in sheep differ from humans, although pigs and sheep share similar characteristics, nerve fibers are observed in the media layer, adventitia, and perivascular tissue in sheep. Necrosis of the intima and focal hemorrhages within the media, adventitia, and perivascular adipose tissue were evidenced post laser PADN. Among the identified lesions, 40% reached adventitia and could be classified as effective for PADN. The use of 20 W ablation energy was safer and 30 W-ablation led to collateral organ damage. Conclusions: An ovine model is suitable for PADN procedures; however, nerve distribution in the PA bifurcation and main branches differ from human PA innervation. Laser ablation can be safely used for PADN procedures. 相似文献