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Search Results: 1 - 10 of 552598 matches for " M. L. Yao "
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Cross-Correlation-Function-Based Multipath Mitigation Method for Sine-BOC Signals
H. H. Chen,W. M. Jia,M. L. Yao
Radioengineering , 2012,
Abstract: Global Navigation Satellite Systems (GNSS) positioning accuracy indoor and urban canyons environments are greatly affected by multipath due to distortions in its autocorrelation function. In this paper, a cross-correlation function between the received sine phased Binary Offset Carrier (sine-BOC) modulation signal and the local signal is studied firstly, and a new multipath mitigation method based on cross-correlation function for sine-BOC signal is proposed. This method is implemented to create a cross-correlation function by designing the modulated symbols of the local signal. The theoretical analysis and simulation results indicate that the proposed method exhibits better multipath mitigation performance compared with the traditional Double Delta Correlator (DDC) techniques, especially the medium/long delay multipath signals, and it is also convenient and flexible to implement by using only one correlator, which is the case of low-cost mass-market receivers.
The role of the tumor microenvironment in breast cancer progression
H Min, J Yao, M Allinen, L Cai, K Polyak
Breast Cancer Research , 2005, DOI: 10.1186/bcr1060
Hybrid Approximate Proximal Point Algorithms for Variational Inequalities in Banach Spaces
L. C. Ceng,S. M. Guu,J. C. Yao
Journal of Inequalities and Applications , 2009, DOI: 10.1155/2009/275208
Abstract: Let C be a nonempty closed convex subset of a Banach space E with the dual E , let T:C→E be a continuous mapping, and let S:C→C be a relatively nonexpansive mapping. In this paper, by employing the notion of generalized projection operator we study the variational inequality (for short, VI(T f,C)): find x∈C such that y x,Tx f ≥0 for all y∈C, where f∈E is a given element. By combining the approximate proximal point scheme both with the modified Ishikawa iteration and with the modified Halpern iteration for relatively nonexpansive mappings, respectively, we propose two modified versions of the approximate proximal point scheme L. C. Ceng and J. C. Yao (2008) for finding approximate solutions of the VI(T f,C). Moreover, it is proven that these iterative algorithms converge strongly to the same solution of the VI(T f,C), which is also a fixed point of S.
Etching-dependent reproducible memory switching in vertical SiO2 structures
J. Yao,L. Zhong,D. Natelson,J. M. Tour
Physics , 2008, DOI: 10.1063/1.3045951
Abstract: Vertical structures of SiO$_{2}$ sandwiched between a top tungsten electrode and conducting non-metal substrate were fabricated by dry and wet etching methods. Both structures exhibit similar voltage-controlled memory behaviors, in which short voltage pulses (1 $\mu$s) can switch the devices between high- and low-impedance states. Through the comparison of current-voltage characteristics in structures made by different methods, filamentary conduction at the etched oxide edges is most consistent with the results, providing insights into similar behaviors in metal/SiO/metal systems. High ON/OFF ratios of over 10$^{4}$ were demonstrated.
Relativistic description of nuclear matrix elements in neutrinoless double-$β$ decay
L. S. Song,J. M. Yao,P. Ring,J. Meng
Physics , 2014, DOI: 10.1103/PhysRevC.90.054309
Abstract: Neutrinoless double-$\beta$ ($0\nu\beta\beta$) decay is related to many fundamental concepts in nuclear and particle physics beyond the standard model. Currently there are many experiments searching for this weak process. An accurate knowledge of the nuclear matrix element for the $0\nu\beta\beta$ decay is essential for determining the effective neutrino mass once this process is eventually measured. We report the first full relativistic description of the $0\nu\beta\beta$ decay matrix element based on a state-of-the-art nuclear structure model. We adopt the full relativistic transition operators which are derived with the charge-changing nucleonic currents composed of the vector coupling, axial-vector coupling, pseudoscalar coupling, and weak-magnetism coupling terms. The wave functions for the initial and final nuclei are determined by the multireference covariant density functional theory (MR-CDFT) based on the point-coupling functional PC-PK1. The low-energy spectra and electric quadrupole transitions in ${}^{150}$Nd and its daughter nucleus ${}^{150}$Sm are well reproduced by the MR-CDFT calculations. The $0\nu\beta\beta$ decay matrix elements for both the $0_1^+\rightarrow 0_1^+$ and $0_1^+\rightarrow 0_2^+$ decays of ${}^{150}$Nd are evaluated. The effects of particle number projection, static and dynamic deformations, and the full relativistic structure of the transition operators on the matrix elements are studied in detail. The resulting $0\nu\beta\beta$ decay matrix element for the $0_1^+\rightarrow 0_1^+$ transition is $5.60$, which gives the most optimistic prediction for the next generation of experiments searching for the $0\nu\beta\beta$ decay in ${}^{150}$Nd.
Critical Percolation Probabilities for the Next-Nearest-Neighboring Site Problems on Sierpinski Carpets
H. B. Nie,B. M. Yu,K. L. Yao
Physics , 2003,
Abstract: In this paper, we compute the next-nearest-neighboring site percolation (Connections exist not only between nearest-neighboring sites, but also between next-nearest-neighboring sites.) probabilities Pc on the two-dimensional Sierpinski carpets, using the translational-dilation method and Monte Carlo technique. We obtain a relation among Pc, fractal dimensionality D and connectivity Q. For the family of carpets with central cutouts,, where, the critical percolation probability for the next-nearest-neighboring site problem on square lattice. As D reaches 2, which is in agreement with the critical percolation probability on 2-d square lattices with next-nearest-neighboring interactions.
Triceps Brachii Tendon Reconstruction with V-Y Plasty: Indication and Functional Results of a Case at Bouaké Teaching Hospital  [PDF]
Krah Koffi Léopold, Sery Bada Léopold, Kone Samba, Digbeu Kévin, Assere Arnaud, Kouassi Aya Natacha, Kouassi Eric, M’Bra Innocent, Yao Loukou Blaise, Kodo Michel
Open Journal of Orthopedics (OJO) , 2017, DOI: 10.4236/ojo.2017.712041
Abstract: Repair of an old lesion of the triceps brachii tendon is infrequent. A V-Y plasty was performed 4 years after the injury in an adult. Post traumatic osteoarthritis limits functional outcomes. The patient is satisfied.
Madelung’s Deformity: Reverse Wedge Osteotomy of the Distal Radius Associate Ulnar Wedge Osteotomy: A Case Report  [PDF]
Kouassi Kouamé Jean Eric, Sery Bada Justin Leopoeld Niaoré, Yao Loukou Blaise, M’bra Kouame Innocent, Krah Koffi Léopold, Kouassi Aya Adelaide Nathacha, Assere Yao Aboh Ganyn Robert Arnaud, Kodo Michel
Open Journal of Orthopedics (OJO) , 2018, DOI: 10.4236/ojo.2018.82004
Abstract: Madelung deformity is rare, accounting for 1.7% of congenital anomalies. The treatment is essentially surgical and several techniques have been described. We report the result of a case treated in an adult patient by a double osteotomy of the radius and ulna. The patient is satisfied.
Major Limb Amputation Secondary to Locally Advanced Cutaneous Squamous Cell Carcinoma in Tropical Environments: Determinants  [PDF]
Kouassi Kouamé Jean Eric, Yao Loukou Blaise, Sery Bada Justin Leopold Niaoré, M’bra Kouamé Innocent, Krah Koffi Léopold, Kouassi Aya Adelaide Nathacha, Assere Yao Aboh Ganyn Robert Arnaud, Kodo Michel
Open Journal of Orthopedics (OJO) , 2018, DOI: 10.4236/ojo.2018.84017
Abstract: Objective: To identify the determinants of secondary limb amputation in advanced squamous cell carcinoma. Material and Methods: This was a retrospective study carried out in the Orthopedic Traumatology Department of the Bouaké University Hospital in Côte d’Ivoire from January 2013 to December 2016. It involved ten patients with locally advanced skin squamous cell carcinoma, confirmed by histology and having amputated limbs. The parameters studied were: demographic data (gender, age), socio-economic conditions (occupation, place of residence), the risk factors involved, the use of topical self-medication and the use of traditional medicine, antecedents and comorbidities factors, lifestyle, clinical aspects (seat, size), extension assessment (X-ray), anatomo-pathological examination data, duration of evolution of squamous cell carcinoma, the function of the affected limb, the treatment performed, the evolutionary modalities and the equipment. Results: Between 2013 and 2016, ten patients underwent either upper or lower limb amputations following locally advanced squamous cell carcinoma. The average age was 34.1 years (19 - 64 years). There were 7 men (70%) and 3 women (30%) and all our patients were black (sub-Saharan Africa). The majority of our patients were farmers (70%). The risk factors for squamous cell carcinoma were neglected chronic wounds. All our patients recognized during the interrogation a large use of the topicals of traditional medicine for the treatment of the initial cutaneous lesions. In terms of lifestyle, five (50%) were smokers and alcoholics. The mean time to progression of squamous cell carcinoma was 5.9 years. Lesions were localized preferentially to the pelvic limbs six (60%) cases and four (40%) to the limbs chest. The lesion was diagnosed late in all our patients. The size of the tumor in all our patients was greater than 5 cm and had a deep invasion (nerves, vessels and bone). The proximal ipsilateral ganglionic invasion was constant. The extension assessment (chest X-ray) showed two cases of pulmonary metastases. Seven patients (70%) had well-differentiated tumors. All patients underwent amputation of the affected limb, sometimes coupled with an accessible lymph node dissection. The evolution was favorable (no recurrence and infection of the amputation stump). The function of the affected limb was limited in all our patients. Seven patients (70%) survive, three of whom have been fitted to the lower limb and are regularly followed on an outpatient basis.
Comparison of Field Measurements of CH4 Emission from Rice Cultivation in Nanjing, China and in Texas, USA

Huang Yao,Jiang Jingyan,Zong Lianggang,Ronald L Sass,Frank M Fisher,
Huang Yao
,Jiang Jingyan,Zong Lianggang,Ronald L. Sass,Frank M. Fisher

大气科学进展 , 2001,
Abstract: Field measurements of methane emission from rice paddies were made in Nanjing, China and in Texas, USA, respectively. Soil temperature at approximately 10 cm depth of the flooded soils was automatically recorded. Aboveground biomass of rice crop was measured approximately every 10 days in Nanjing and every other week in Texas. Seasonal variation of soil temperature in Nanjing was quite wide with a magnitude of 15.3°C and that in Texas was narrow with a magnitude of 2.9°C. Analysis of methane emission fluxes against soil temperature and rice biomass production demonstrated that the seasonal course of methane emission in Nanjing was mostly attributed to soil temperature changes, while that in Texas was mainly related to rice biomass production. We concluded that under the permanent flooding condition, the seasonal trend of methane emission would be determined by the soil temperature where there was a wide variation of soil temperature, and the seasonal trend would be mainly determined by rice biomass production if there are no additional organic matter inputs and the variation of soil temperature over the rice growing season is small. This work was supported by grants from TECO/NASA, the United States, the Hundred Talents Program, Chinese Academy of Sciences and the National Key Basic Research Development Foundation (approved # G1999011805), China.
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