Time filter

Source Type

Jin X.D.,Liaoning University | Jin Y.H.,Liaoning Provincial Institute of Measurement | Cui Z.G.,Liaoning University | Li Y.Y.,Liaoning University | Wang H.B.,Liaoning University
Advanced Materials Research | Year: 2011

By reactions of indium chloride tetrahydrate with three bis-Schiff bases ligands (N, N′-bis (3-methoxy-salicylidene)benzidine = L1; N, N′-bis (3-methoxysalicylidene)-2, 2′-dimethyl- benzidine =L 2; N, N′-bis (3-methoxysalicylidene)-o- dianisidine = L 3), respectively, three novel corresponding complexes 1∼3 were obtained. The complexes were characterized by infrared spectrum, molar conductance, elemental analysis and thermal gravimetric analysis. The chemical formulae of the complexes 1∼3 were determined as (InCl3) 2Ln (1, n = 1; 2, n = 2; 3, n = 3). All the complexes are constructed with binuclear indium ions. Every complex consists of two central In (III) ions, one corresponding bis-Schiff base ligand and six Cl-. © (2011) Trans Tech Publications.


Wang Z.,Liaoning Provincial Institute of Measurement | Zhang T.,Tianjin University
15th International Flow Measurement Conference 2010, FLOMEKO 2010 | Year: 2010

A new method is presented in this paper for improving the linearity of the turbine flowmeter by optimizing the geometric parameters of the rotor. An objective function is defined to improve the linearity. Four characteristic parameters: the ratio of the blade tip space to pipeline radius, the ratio of the rotor hub radius to the blade tip radius, the fitted angle of the blade at the mean square root radius and the cascade solidity of the blade tip, are used to optimize the rotor design according to the n dimension extremum complex configuration optimization method and the turbine flowmeter's mathematic model. The newly designed optimal rotors of 50mm and 25mm bore turbine flowmeter were manufactured and evaluated on a water flow calibration facility. The linearity of the optimized flowmeters is found to be 0.3657% and 0.283% respectively. Copyright © FLOMEKO 2010.


Jin X.-D.,Liaoning University | Wang H.-B.,Liaoning University | Jin Y.-H.,Liaoning Provincial Institute of Measurement
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

A novel Schiff base compound, C 20H 27NO 2, was obtained by a condensation of rimantadine and 2-hydroxy-4- methoxybenzaldehyde. An intramolecular O - H⋯N hydrogen bond supports the phenolimine tautomeric form. The adamantane and iminomethyl-4-methoxyphenol units are arranged in a folded conformation [C - N - C - C torsion angle = 110.9 (3)°]. In the crystal, highly hydrophobic adamantane moieties are inserted between the iminomethyl-4-methoxyphenol units in a sandwichlike arrangement along the c axis.


Jin X.-D.,Liaoning University | Jin Y.-H.,Liaoning Provincial Institute of Measurement | Zou Z.-Y.,Liaoning University | Cui Z.-G.,Liaoning University | And 4 more authors.
Journal of Coordination Chemistry | Year: 2011

Indium(III) chloride tetrahydrate and Schiff-base ligands derived from adamantaneamine and 3-/4-methoxysalicylaldehyde gave two complexes, C 22H32Cl3InN2O3 (1) and C36H44Cl3InN2O4 (2), respectively. The complexes were characterized by IR, 1H NMR, elemental analysis, molar conductance, thermal analysis, and single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic system, P21/n space group with the asymmetric unit consisting of one indium(III), one N-(3-methoxysalicylidene)-aminoadamantane (L1), three chlorides and one N,N-dimethylformamide molecule. The indium is six-coordinate with reversed triangular-prism geometry via three oxygens and three chlorides. Complex 2 crystallizes in the triclinic system, P1 space group; the asymmetric unit consists of one indium(III), two N-(4methoxysalicylidene)-aminoadamantane (L2), and three chlorides. The indium is five-coordinate with distorted trigonal-bipyramidal geometry via two oxygens and three chlorides. Antibacterial activities of the complexes have been investigated against Escherichia coli and Staphylococcus aureus. © 2011 Taylor & Francis.


Hai D.,Shenyang University | Qiang Z.B.,Shenyang University | Tao Z.,Liaoning Provincial Institute of Measurement
Advances in Intelligent and Soft Computing | Year: 2012

The underlying motivation lies in the use of feedback from the real-time monitoring of events and metrics to update strategic and operational policies. Using uncertain real-time information to update supply chain operational policies creates a need for developing dynamic supply chain management capabilities that increase responsiveness to demand and decrease volatility of the replenishment process. Firstly,the determination of decentralized inventory decisions are investigated when the two parties optimize their individual inventory-related costs in a noncooperative manner. Then a optimized control strategy is proposed to manage the inventory replenishment process in a supply chain system under different forecast situations. Finally, a simulation-based experiment is performed to verify control strategy validity. © 2012 Springer-Verlag GmbH Berlin Heidelberg.


Jin X.-D.,Liaoning University | Xu C.,Liaoning University | Liu X.-C.,Liaoning University | Yin X.-Y.,Liaoning University | And 3 more authors.
Journal of Coordination Chemistry | Year: 2013

By condensation of amantadine and 4-methoxysalicylaldehyde a new Schiff base HL was synthesized. A mixture of HL and zinc(II) chloride in an alcoholic medium leads to [Zn(HL)2Cl2] (1). However, the same reactants gave another different complex (ZnL2) (2) in the presence of NaOH. The two complexes were characterized by IR, 1H NMR, elemental analysis, molar conductance, and single-crystal X-ray diffraction. X-ray diffraction analysis reveals that complex 1 crystallizes in the triclinic system, P1̄ space group; each asymmetric unit consists of one zinc(II), two HL, and two chlorides. The tetra coordination of central zinc is attained by two chlorides and two oxygens from the Schiff base, forming a distorted tetrahedral geometry. Complex 2 crystallizes in the monoclinic system, P2 1/c space group; each asymmetric unit consists of one zinc(II) and two L. The tetra coordination of central zinc is attained by two nitrogens and two oxygens from the Schiff base, forming a distorted tetrahedral geometry. © 2013 Taylor & Francis.


Yang B.,Liaoning Provincial Institute of Measurement
Jiliang Xuebao/Acta Metrologica Sinica | Year: 2010

The principle and methods of baseplane measurement of pitch diameter of tapered thread gauge with Mahr PLM600 measuring machine are described. The pitch diameter of 1/4-18NPT tapered thread gauge is measured as an example, and the uncertainty is analyzed. The experiment indicates that this method can meet the requirements of measuring pitch diameter of tapered thread gauge exactly and effectively, its advantages are high precision, simple of operation, and credibitable of measurement results.


Zou P.,Northeastern University China | Liu F.,Northeastern University China | Gao X.J.,Northeastern University China | Yang X.L.,Northeastern University China | Ai M.Z.,Liaoning Provincial Institute of Measurement
Mechanisms and Machine Science | Year: 2015

This paper presents the accuracy analysis of a tripod parallel grinder. The manipulator structure was introduced and its inverse geometric problem was studied. The inverse Jacobian matrix of the tripod parallel grinder was obtained upon the differentiation of the loop-closure displacement equations. The influence of the geometric parameters to the accuracy of the tripod parallel grinder was investigated. Through simulation, the influences of link length error to accuracy were analyzed, which is the basis of error compensation and control for the machine tool. © Springer International Publishing Switzerland 2015.


Zhang Y.,Liaoning Provincial Institute of Measurement | Wang Y.,Liaoning Provincial Institute of Measurement | Yao X.Y.,Liaoning Provincial Institute of Measurement
Applied Mechanics and Materials | Year: 2014

To study the data consistency of Three-pin/T-shaped probe and thread scanning measurement. Through the analysis and summary of the measurement methods and experimental data obtained in two methods of measurement uncertainty can meet the thread gauge diameter measurement requirements. Experiment to obtain the maximum difference of the actual size of the corresponding point of 1.1µm, verify the correctness of the two thread measurement method and propose the appropriate application program. © (2014) Trans Tech Publications, Switzerland.


Sun T.Y.,Liaoning Provincial institute of measurement | Liu Y.B.,Liaoning Provincial institute of measurement | Wei T.S.,Liaoning Provincial institute of measurement | Yin F.C.,Liaoning Provincial institute of measurement
Applied Mechanics and Materials | Year: 2014

There is not any calibration specification or verification regulation for the milliampere-second meter, a very important instrument for preventive maintenance and calibrating the X-ray machine [1][2], is used to measure the value of the product of tube current and exposure time. To solve the problem that the traditional method can not offer the same standard value in different times, this paper presents a method for calibrating the milliampere-second meter by using a signal generator and a digital meter. It shows that the new method has good repeatability and stability. © (2014) Trans Tech Publications, Switzerland.

Loading Liaoning Provincial Institute of Measurement collaborators
Loading Liaoning Provincial Institute of Measurement collaborators