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In this short note the authors give answers to the three open problems formulated by Wu and Srivastava [ Appl. Math. Lett. 25 (2012), 1347--1353]. ... Introduction and conjectures of Yu-Dong Wu and H.M. Srivastava The geometric inequalities are relevant in several areas of the science and engineering [1, 2, 3, 4, 5, 6, 7] . ... In (1.1), the left inequality can be proved by the Power-Mean Inequality and the right inequality was recently proved by Wu and Srivastava in  . ...arXiv:1408.3029v1 fatcat:jtcc55rlmjc6ta5dhzc5zgxhcm
There will also be described its developed version, the missile Dong Feng 26 with longer range. ... Bemutatásra kerül ennek továbbfejlesztett változata is, a nagyobb hatótávolságú Dong Feng 26 rakéta. ... A kínai WU-14 Dong Feng-21D nagy hatótávolságú hajó elleni ballisztikus rakéta és a csendes-óceáni erőegyensúly átalakulása 2 015. szeptember 3-án a második világháború befejezésének 70. évfordulóján Pekingben ...doi:10.23713/ht.51.1.05 fatcat:awneaetwkzhp7okgjrjj25ek3e
Sufficient sleep duration and good sleep quality are crucial to ensure normal physical and mental health, cognition and work performance for the common people, as well as astronauts. On-orbit sleep problem is very common among astronauts and has potential detrimental influences on the health of crewmembers and the safety of flight missions. Sleep in space is becoming a new medical research frontier. In this review we summarized on-orbit sleep problems of astronauts and six kinds of causes, anddoi:10.1186/s40779-018-0165-6 pmid:29843821 pmcid:PMC5975626 fatcat:ntjkzxv4affb3juwfqx6u5ftkm
more »... e presented the effects of lack of sleep on performance as well as mental and physical health, then we proposed seven kinds of countermeasures for sleep disturbance in spaceflight, including pharmacologic interventions, light treatment, crew selection and training, Traditional Chinese Medicine and so on. Furthermore, we discussed and oriented the prospect of researches on sleep in space.
doi:10.1093/molbev/msu070 pmid:24520091 fatcat:prnwdjpg4jcilkkfixvqf24fjq
Unsupported NiMo catalyst has high hydrogenation activity due to its high active site distribution. However, low specific surface area and pore distribution greatly limit the efficient utilization of the active components. The Y-zeolite nanoclusters were hydrothermally synthesized and introduced into the unsupported NiMo catalysts from a layered nickel molybdate complex oxide. The XRD, N2 adsorption-desorption, FT-IR, Py-IR, SEM, NH3-TPD, and TEM were used to characterize all catalysts. Thedoi:10.3390/cryst9070344 fatcat:wujzojlowvdhpanhruboqfhzrm
more »... nzothiophene (DBT) hydrodesulfurization (HDS) reaction was performed in a continuous high pressure microreactor. The results showed that the specific surface area, pore volume, and average pore size of the unsupported NiMo catalysts were greatly increased by the Y-zeolite nanoclusters, and a more dispersed structure was produced. Furthermore, the Lewis acid and total acid content of the unsupported NiMo catalysts were greatly improved by the Y-zeolite nanoclusters. The HDS results showed that the unsupported NiMo catalysts modified by the nanoclusters had the same high desulfurization efficiency as the unmodified catalyst, but had more proportion of direct desulfurization (DDS) products. The results offer an alternative to reducing hydrogen consumption and save cost in the production of ultra clean diesel.
To achieve this goal, we developed a specialized database WDSPdb (http://wu. scbb.pkusz.edu.cn/wdsp/) to provide these details of WD40-repeat proteins based on our recently published method WDSP. ... Gaudet et al. and Wu et al. first reported that WD40 protein binds other proteins on the top surface by the 16th, 18th and 34th residues of each WD40 blade (19, 20) . ...doi:10.1093/nar/gku1023 pmid:25348404 pmcid:PMC4383882 fatcat:j2i6ai65jnezjkth7d5tsjgs5a
Pressure-induced phase transitions of multiferroic BiFeO3 have been investigated using synchrotron radiation X-ray diffraction with diamond anvil cell technique at room temperature. Present experimental data clearly show that rhombohedral (R3c) phase of BiFeO3 first transforms to monoclinic (C2/m) phase at 7 GPa, then to orthorhombic (Pnma) phase at 11 GPa, which is consistent with recent theoretical ab initio calculation. However, we observe another peak at 2θ=7 in the pressure range of 5-7arXiv:1308.6340v1 fatcat:hwnr76a7sbcbxcp7dyivo44jbu
more »... that has not been reported previously. Further analysis reveals that this reflection peak is attributed to the orthorhombic (Pbam) phase, indicating the coexisting of monoclinic phase with orthorhombic phase in low pressure range.
Acknowledgements This work is supported by the National Natural Science Foundation of China to Dong Dong (Grant No. is 31200956). Author details ...doi:10.1186/s13000-015-0310-4 pmid:26215638 pmcid:PMC4517624 fatcat:vfgp2d6xpfdrzpacdegonizlw4
Zhou et al.: NH 3 (1,1) hyperfine intensity anomalies in the Orion A molecular cloud Article number, page 10 of 12 Dong-dong Zhou et al.: NH 3 (1,1) hyperfine intensity anomalies in the Orion A molecular ... illustrated there. σ NT is calculated by σ NT = σ 2 v − kT K /(µ NH 3 m H ) , where µ NH 3 = 17, m H = 1.674 × 10 −24 g, k is the Boltzmann constant, and T K is the kinetic tem-Article number, page 4 of 12 Dong-dong ...arXiv:2006.10709v1 fatcat:wccudtdf7feknfsnk74gcwxdry
Dong Li is an associate professor at Department of Electrical Engineering and Computer Science (EECS) at University of California (UC), Merced. ... Dong earned his Ph.D. degree in computer science from Virginia Tech. His research focuses on high-performance computing (HPC), and maintains a strong relevance to computer systems. ...doi:10.1007/s11390-021-0001-4 fatcat:f6kzf7226jbltpygejrg5wwut4
Lossy image compression is a many-to-one process, thus one bitstream corresponds to multiple possible original images, especially at low bit rates. However, this nature was seldom considered in previous studies on image compression, which usually chose one possible image as reconstruction, e.g. the one with the maximal a posteriori probability. We propose a learned image compression framework to natively support probabilistic decoding. The compressed bitstream is decoded into a series ofarXiv:2109.14837v1 fatcat:dknryjvvebgqdmyhqp2i7p4h44
more »... ers that instantiate a pre-chosen distribution; then the distribution is used by the decoder to sample and reconstruct images. The decoder may adopt different sampling strategies and produce diverse reconstructions, among which some have higher signal fidelity and some others have better visual quality. The proposed framework is dependent on a revertible neural network-based transform to convert pixels into coefficients that obey the pre-chosen distribution as much as possible. Our code and models will be made publicly available.
A physical model of Geant4-based simulation of galactic cosmic ray (GCR) particles interaction with the lunar surface matter has been developed to investigate the production rate of cosmogenic nuclei. In this model the GCRs, mainly very high energy protons and α particles, bombard the surface of the Moon and produce many secondary particles such as protons and neutrons. The energies of proton and neutron at different depths are recorded and saved into ROOT files, and the analytical expressionsarXiv:1309.1833v1 fatcat:mlwj4pqfh5hjlep623kowcj2dq
more »... or the differential proton and neutron fluxes are obtained through the best-fit procedure under the ROOT software. To test the validity of this model, we calculate the production rates of long-lived nuclei ^10Be and ^26Al in the Apollo 15 long drill core by combining the above differential fluxes and the newly evaluated spallation reaction cross sections. Numerical results show that the theoretical production rates agree quite well with the measured data. It means that this model works well. Therefore, it can be expected that this model can be used to investigate the cosmogenic nuclei in lunar samples returned by Chinese lunar exploration program and can be extended to study other objects, such as the meteorites and the Earth's atmosphere.
ESC Heart Failure
Conflict of interest Xin He, Bin Dong, Ruicong Xue, Jingjing Zhao, Zexuan Wu, Yuzhong Wu, Yuanyuan Zhou, Dexi Wu, Yugang Dong, Jiangui He, and Chen Liu declare that they have no conflict of interest. ...doi:10.1002/ehf2.13453 pmid:34076960 fatcat:nljcrplrofbv3cnhnyirdjbf6q
Authors' Contributions Ze-Xuan Dong and Ming Tian are equal contributors. Figure 5 : (a) Receiver operating characteristic curve (ROC) analysis for the prediction of all-cause death. ...doi:10.1155/2020/7646384 pmid:32076464 pmcid:PMC7008257 fatcat:llvvssujaffdhkdetoscjfjcdy
Cell-cell communication via gap junctions regulates a wide range of physiological processes by enabling the direct intercellular electrical and chemical coupling. However, the in vivo distribution and function of gap junctions remain poorly understood, partly due to the lack of non-invasive tools with both cell-type specificity and high spatiotemporal resolution. Here we developed PARIS (pairing actuators and receivers to optically isolate gap junctions), a new fully genetically encoded tooldoi:10.1101/465781 fatcat:55hrhpr6crckxp3u5zx7mqzxbu
more »... measuring the cell-specific gap junctional coupling (GJC). PARIS successfully enabled monitoring of GJC in several cultured cell lines under physiologically relevant conditions and in distinct genetically defined neurons in Drosophila brain, with ~10-sec temporal resolution and sub-cellular spatial resolution. These results demonstrate that PARIS is a robust, highly sensitive tool for mapping functional gap junctions and study their regulation in both health and disease.
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