Search results for: Xiaoji Liu

Items from 1 to 20 out of 45 results

article

Effect of sleep report feedback using information and communication technology combined with health guidance on improving sleep indicators in community‐dwelling older people: a pilot trial

Wenping Mo, Miyae Yamakawa, Shimpei Takahashi, Xiaoji Liu, more

Background This study evaluated the preliminary effect of an integrated novel intervention comprising visualised sleep report feedback using information and communication technology and periodic health guidance on improving sleep indicators among community‐dwelling older people. Methods The intervention was implemented among 29 older people in Sakai City, Japan, in a 3 months pilot trial. Non‐worn...

article

The weak group matrix

Hongxing Wang, Xiaoji Liu

Aequationes mathematicae > 2019 > 93 > 6 > 1261-1273

In this paper,we introduce the weak group matrix defined by the one commutable with its weak group inverse, and consider properties and characterizations of the matrix by applying the core-EP decomposition. In particular,the set of weak group matrices is more inclusive than that of group matrices. We also derive some characterizations of p-EP matrices and i-EP matrices.

article

Microbial analysis of commercially available US Queso Fresco

Maxwell J. Holle, Luis A. Ibarra-Sánchez, Xiaoji Liu, Matthew J. Stasiewicz, more

Journal of Dairy Science > 2018 > 101 > 9 > 7736-7745

Queso Fresco (QF), a fresh Hispanic-style cheese, is often associated with Listeria monocytogenes outbreaks and recalls. Queso Fresco's susceptibility to bacterial contamination is partially due to its high pH and moisture content as well as Listeria's tolerance for the salt content typical for QF. Nine different brands of US QF, 2 packages from 4 different lots (to account for temporal variability),...

article

Pyrolysis and subsequent direct combustion of pyrolytic gases for sewage sludge treatment in China

Xiaoji Liu, Fengmin Chang, Cuiping Wang, Zhengyu Jin, more

Applied Thermal Engineering > 2018 > 128 > C > 464-470

An equipment based on pyrolysis and subsequent direct combustion of the pyrolytic gases as energy supplier was developed to treat dry sewage sludge in China. In this system, the pyrolytic gases generated in the pyrolysis room were transported upward to the burning room where they were ignited to release heat energy which irradiated back to sustain pyrolysis of the sewage sludge in the pyrolysis room...

article

Sustainable pyrolytic sludge-char preparation on improvement of closed-loop sewage sludge treatment: Characterization and combined in-situ application

Zhengyu Jin, Fengmin Chang, Fanlin Meng, Cuiping Wang, more

Chemosphere > 2017 > 184 > C > 1043-1053

Aiming at closed-loop sustainable sewage sludge treatment, an optimal and economical pyrolytic temperature was found at 400–450 °C considering its pyrolysis efficiency of 65%, fast cracking of hydrocarbons, proteins and lipids and development of aromatized porous structure. Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) tests demonstrated the development of adsorptive functional groups...

article

The generalized inverses of tensors and an application to linear models

Hongwei Jin, Minru Bai, Julio Benítez, Xiaoji Liu

Computers & Mathematics with Applications > 2017 > 74 > 3 > 385-397

In this paper, we recall and extend some tensor operations. Then, the generalized inverse of tensors is established by using tensor equations. Moreover, we investigate the least-squares solutions of tensor equations. An algorithm to compute the Moore–Penrose inverse of an arbitrary tensor is constructed. Finally, we apply the obtained results to higher order Gauss–Markov theorem.

article

Differential gene expression and filamentation of Listeria monocytogenes 08-5923 exposed to sodium lactate and sodium diacetate

Xiaoji Liu, Urmila Basu, Petr Miller, Lynn M. McMullen

Food Microbiology > 2017 > 63 > C > 153-158

This study reports the gene expression and filamentation in Listeria monocytogenes 08-5923 following exposure to food preservatives sodium lactate (NaL) and sodium diacetate (SD). L. monocytogenes 08-5923 was challenged with a mixture of NaL/SD, NaL or sodium acetate at 37 °C in tryptic soy broth. In the initial study, L. monocytogenes 08-5923 was exposed to NaL/SD for 24 h. The transcriptome was...

article

A new method of two-phase anaerobic digestion for fruit and vegetable waste treatment

Yuanyuan Wu, Cuiping Wang, Xiaoji Liu, Hailing Ma, more

Bioresource Technology > 2016 > 211 > C > 16-23

A novel method of two-phase anaerobic digestion where the acid reactor is operated at low pH 4.0 was proposed and investigated. A completely stirred tank acid reactor and an up-flow anaerobic sludge bed methane reactor were operated to examine the possibility of efficient degradation of lactate and to identify their optimal operating conditions. Lactate with an average concentration of 14.8g/L was...

article

Structure stability of TiAu4 nanocluster with water adsorption

Xiaoji Liu, Beien Zhu, Yi Gao

Physics Letters A > 2016 > 380 > 22-23 > 1971-1975

Transition-metal (TM) doped noble metal alloy clusters have drawn much attention due to their potential applications as nanocatalysts and nanoelectronic devices. Among these alloy clusters, a tetrahedral (Td) TiAu₄ nanocluster is predicted as highly stable both theoretically and experimentally. However, in the recent years it has been revealed that the structures of the nanocatalysts can be easily...

article

Partial orders based on core-nilpotent decomposition

Hongxing Wang, Xiaoji Liu

Linear Algebra and its Applications > 2016 > 488 > C > 235-248

In this paper, we study partial orders in terms of the core-nilpotent decomposition. We derive some characterizations of the C-N partial ordering, create a new partial ordering (the G-Drazin partial ordering) which is a generalization of C-N partial ordering, and give some properties and characterizations of the G-Drazin partial ordering.

article

Sodium chloride‐induced filamentation and alternative gene expression of fts, murZ, and gnd in Listeria monocytogenes 08‐5923 on vacuum‐packaged ham

Xiaoji Liu, Petr Miller, Urmila Basu, Lynn M. McMullen

FEMS Microbiology Letters > 360 > 2 > 152 - 156

The aim of this study was to examine the filament formation and differential gene expression of Listeria monocytogenes 08‐5923 grown on refrigerated vacuum‐packaged ham products with various NaCl concentrations. Filament formation of L. monocytogenes was observed on ham products with 1.35% and 2.35% NaCl, which was monitored using flow cytometry by measuring forward light scatter. Quantitative real‐time...

article

Further results on the reverse order law for the group inverse in rings

Xiaoji Liu, Miao Zhang, Julio Benítez

Applied Mathematics and Computation > 2014 > 229 > Complete > 316-326

In this paper, we use the Drazin inverse to derive some new equivalences of the reverse order law for the group inverse in unitary rings. Moreover, if the ring has an involution, we present more equivalences when both involved elements are EP.

article

Higher-order convergent iterative method for computing the generalized inverse and its application to Toeplitz matrices

Xiaoji Liu, Hongwei Jin, Yaoming Yu

Linear Algebra and Its Applications > 2013 > 439 > 6 > 1635-1650

The main aim of this paper is to provide a higher-order convergent iterative method in order to calculate the generalized inverse of a given matrix. We extend the iterative method proposed in Li et al. [W.G. Li, Z. Li, A family of iterative methods for computing the approximate inverse of a square matrix and inner inverse of a non-square matrix, Applied Mathematics and Computation 215 (2010) 3433-3442]...

article

Representations of generalized inverses of partitioned matrix involving Schur complement

Xiaoji Liu, Hongwei Jin, Dragana S. Cvetković-Ilić

Applied Mathematics and Computation > 2013 > 219 > 18 > 9615-9629

In this article, we consider some representations of {1,3},{1,4},{1,2,3} and {1,2,4}-inverses of the partitioned matrix M which are equivalent to some rank additivity conditions. We present the application of these results to generalizations of the Sherman–Morrison–Woodbury-type formulae.

article

A short proof of a matrix decomposition with applications

Julio Benı´tez, Xiaoji Liu

Linear Algebra and Its Applications > 2013 > 438 > 3 > 1398-1414

We give a very short proof of the main result of J. Benı´tez, A new decomposition for square matrices, Electron. J. Linear Algebra 20 (2010) 207–225. Also, we present some consequences of this result.

article

On the perturbation of weighted group inverse of rectangular matrices

Xiaoji Liu, Zhaoliang Xu, Qing Zhao, Hui Wei

Journal of Applied Mathematics and Computing > 2013 > 42 > 1-2 > 441-454

Cen (Math. Numer. Sin. 29:39–48, 2007) defined a weighted group inverse of rectangular matrices. For given matrices A∈C ^m×n and W∈C ^n×m, if X∈C ^m×n satisfies $$( W_{1} )\ AWXWA=A, \qquad ( W_{2} ) \ XWAWX=X,\qquad ( W_{3} )\ AWX=XWA $$ then X is called the W-weighted group inverse, which is denoted by $A_{W}^{\#}$ . In this paper, for given rectangular matrices A and E and B=A+E, we investigate...

article

Characterization of primary geochemical haloes for gold exploration at the Huanxiangwa gold deposit, China

Changming Wang, Emmanuel John M. Carranza, Shouting Zhang, Jing Zhang, more

Journal of Geochemical Exploration > 2013 > 124 > Complete > 40-58

Recognition of primary geochemical haloes is one of the most important tools for exploring undiscovered mineral resources. This tool is being routinely applied in exploration programs at the Huanxiangwa gold deposit, Xiong'er Mountains, China. Sampling of unweathered rock for multi-element analysis has been undertaken in all completed and ongoing exploration and development work, including drilling...

article

Mineral Synthesis in Si–Al–Ca Systems and Their Iodide Sorption Capacity under Alkaline Conditions

Xiaoji Liu, Atsushi Asai, Tsutomu Sato, Einstine Opiso, more

Water, Air, & Soil Pollution > 2013 > 224 > 3 > 1-13

The release of anionic nuclides such as ¹²⁹I from underground nuclear waste disposals is of great environmental concern due to its long half-life and high mobility in alkaline environments. The leachability of iodide is largely dependent on the sorption capacity of various Ca-bearing minerals such as ettringite, hydrocalumite, and calcium silicate hydrate (C-S-H) which are common hydration products...

article

The absorption laws for the generalized inverses

Xiaoji Liu, Hongwei Jin, Dragana S. Cvetković-Ilić

Applied Mathematics and Computation > 2012 > 219 > 4 > 2053-2059

In this paper, we give necessary and sufficient conditions for the absorption laws in terms of {1},{1,2},{1,3} and {1,4}-inverses. Also, we consider the various types of mixed absorption law for the generalized inverses.

article

Mixed-type reverse-order laws for {1,3,4}-generalized inverses over Hilbert spaces

Xiaoji Liu, Shaowu Huang, Dragana S. Cvetković-Ilić

Applied Mathematics and Computation > 2012 > 218 > 17 > 8570-8577

The reverse order laws for {1,3,4}-generalized inverses of a product of two operators have been studied by Wang et al. [J. Wang, H. Zhang, G. Ji, A generalized reverse order law for the products of two operators, Journal of Shaanxi Normal University, 38 (4) (2010), 13–17].In this paper using a block-operator matrix technique we study mixed-type reverse-order laws for {1,3,4}-generalized inverses over...

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INFONA - science communication portal

Search results for: Xiaoji Liu

Effect of sleep report feedback using information and communication technology combined with health guidance on improving sleep indicators in community‐dwelling older people: a pilot trial

The weak group matrix

Microbial analysis of commercially available US Queso Fresco

Pyrolysis and subsequent direct combustion of pyrolytic gases for sewage sludge treatment in China

Sustainable pyrolytic sludge-char preparation on improvement of closed-loop sewage sludge treatment: Characterization and combined in-situ application

The generalized inverses of tensors and an application to linear models

Differential gene expression and filamentation of Listeria monocytogenes 08-5923 exposed to sodium lactate and sodium diacetate

A new method of two-phase anaerobic digestion for fruit and vegetable waste treatment

Structure stability of TiAu4 nanocluster with water adsorption

Partial orders based on core-nilpotent decomposition

Sodium chloride‐induced filamentation and alternative gene expression of fts, murZ, and gnd in Listeria monocytogenes 08‐5923 on vacuum‐packaged ham

Further results on the reverse order law for the group inverse in rings

Higher-order convergent iterative method for computing the generalized inverse and its application to Toeplitz matrices

Representations of generalized inverses of partitioned matrix involving Schur complement

A short proof of a matrix decomposition with applications

On the perturbation of weighted group inverse of rectangular matrices

Characterization of primary geochemical haloes for gold exploration at the Huanxiangwa gold deposit, China

Mineral Synthesis in Si–Al–Ca Systems and Their Iodide Sorption Capacity under Alkaline Conditions

The absorption laws for the generalized inverses

Mixed-type reverse-order laws for {1,3,4}-generalized inverses over Hilbert spaces

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