15 Result(s)
within
Qi** Zhai
Chemistry/Food Science, general
Earth Sciences, general
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Article
Open AccessCharacteristics and control measures of odor emissions from crematoriums in Bei**g, China
The promulgation and implementation of the national and Bei**g municipal standards for air pollutants emitted from crematoriums has effectively alleviated the problem of “black smoke” in crematoriums, but not...
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Article
Simulation study on unbalance vibration characteristics of dual-rotor system
The unbalance vibration characteristics of dual-rotor system were fully analyzed based on design of experiment in this paper. Firstly, a simplified dual-rotor system was presented with the consideration of rad...
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Article
Quality and robustness optimization design method for electromagnetic devices consider manufacturing uncertainties and working point migration of permanent magnets
Electromagnetic devices (EMDs) containing permanent magnets are common devices showing low power con-sumption, small size, and high sensitivity. In batch production of EMDs there is a robustness problem linked...
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Article
Research on the prediction method of unbalance responses of dual-rotor system based on surrogate models
In this work, the prediction methods of unbalance responses based on the surrogate models were studied, where the simulation data of vibration responses of a dual-rotor system with four disks and five supporti...
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Article
Additive Manufacturing: Making Imagination the Major Limitation
Additive manufacturing (AM) refers to an advanced technology used for the fabrication of three-dimensional near-net-shaped functional components directly from computer models, using unit materials. The fundame...
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Article
Open AccessDevelopment of a new method for analyzing free aluminum ions (Al3+) in seafood using HPLC-ICP-MS
This paper presents a novel method for simultaneous online examination of free aluminum ions (Al3+) in seafood, using solid-phase extraction and high-performance liquid chromatography online with inductively coup...
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Article
Open AccessCharacterization and cloning of a brittle culm mutant (bc88) in rice (Oryza sativa L.)
This study characterizes a brittle culm (bc88) mutant of rice (Oryza sativa L.) obtained by ethylene methylsulfonate (EMS)-in-duced mutagenesis of Wuyun**g 7. The bc88 mutant exhibits a diversity of pleiotropic ...
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Article
Open AccessThe radiolytic behavior and mechanism of calixarene crown ether under γ-irradiation
Bis(2-propyloxy)calix[4]crown-6 (BPC6) is an effective separation agent for cesium removing from spent nuclear fuel. The study on radiolytic behavior of BPC6 itself under γ-irradiation was required for evaluating...
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Article
Open AccessThermodynamic properties and microstructural characteristics of binary Ag-Sn alloys
The liquidus and solidus temperatures and enthalpy of fusion for Ag-Sn alloys are systematically measured within the whole composition range by differential scanning calorimetry (DSC). The measured enthalpy of...
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Article
Open AccessDistribution, fluxes and decadal changes of nutrients in the Jiulong River Estuary, Southwest Taiwan Strait
The Jiulong River Estuary (JRE) is a typical subtropical macro-tide estuary on the southwest coast of the Taiwan Strait (TWS), which has been greatly impacted by human activities over the past 30 years. To und...
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Article
Open AccessHe-Ar isotope geochemistry of the Yaoling-Meiziwo tungsten deposit, North Guangdong Province: Constraints on Yanshanian crust-mantle interaction and metallogenesis in SE China
Isotopic abundances and ratios of He and Ar found in inclusion fluids in pyrites formed in the Yaoling-Meiziwo tungsten mineralization epoch show that the concentration of 4He varies widely, from 1.54×10−7 cm3 ST...
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Article
Open AccessCoastal acidification in summer bottom oxygen-depleted waters in northwestern-northern Bohai Sea from June to August in 2011
Dissolved oxygen (DO) and pH in the central part of the Bohai Sea were surveyed in late June and late August, 2011. During the June cruise, the bottom DO was in the range of 215–290 μmol-O2 kg−1 (i.e. 85%–115% of...
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Article
Open AccessAge of the Miyun dyke swarm: Constraints on the maximum depositional age of the Changcheng System
A group of NE-trending (∼30°) mafic dykes, termed Miyun swarm herein, are distributed around the Miyun Reservoir, northern China, and have individual widths of over 40 m, and lengths of up to 8000 m. Baddeleyi...
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Article
Open AccessDeformation induced structural evolution in bulk metallic glasses
The structural behavior of binary Cu50Zr50 and ternary Cu50Zr45Ti5 bulk metallic glasses (BMGs) under applied stress was investigated by means of in-situ high energy X-ray synchrotron diffraction. The components ...
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Article
Open AccessDynamic solidification of Sn-38.1% Pb eutectic alloy within ultrasonic field
The dynamic solidification of Sn-38.1% Pb eutectic alloy within an ultrasonic field is investigated at a frequency of 35 kHz. As the sample height H is reduced, the effect of ultrasound on macrosegregation become...
