[en] Personal dose monitoring technology has been developed to OSL technology through the development of Film and TLD. OSL for personal dose monitoring began in 1997. More than 1.5 million global monitoring OSL badges were dealt with each month currently, primarily in the United States of the developed countries in the West. Al₂O₃:C crystal was used for OSL detector material. In this paper it expounded the advantages of OSL technology and the broad application prospects in China through introducing the principle of OSL and the advantage of OSL compared with TLD, taking Inlight dosimetry system of Landauer as an example. (authors)

[en] The fundamentals of OSL dosimeters, and the calibration and test methodology of measuring system are dealt with, giving the results of inter-comparison with TLDs at Tianwan NPP. The results are indicative that OSL dosimeters are better than TLDs, indicating huge advantage of OSL dosimeters and broad application prospect. (authors)

[en] A novel porous anionic metal–organic framework, (Me_2NH_2)_2[Zn_2L_1_._5bpy]·2DMF (BUT-201; H_4L=4,8-disulfonaphthalene-2,6-dicarboxylic acid; bpy=4,4-bipyridine; DMF=N,N-dimethylformamide), with pillared double-layer structure has been synthesized through the reaction of a sulfonated carboxylic acid ligand and Zn(NO_3)_2·6H_2O with 4,4-bipyridine as a co-ligand. It is found that BUT-201 can rapidly adsorb cationic dyes with a smaller size such as Methylene Blue (MB) and Acriflavine Hydrochloride (AH) by substitution of guest (CH_3)_2NH_2"+, but has no adsorption towards the cationic dyes with a lager size such as Methylene Violet (MV), the anionic dyes like C. I. Acid Yellow 1 (AY1) and neutral dyes like C. I. Solvent Yellow 7 (SY7), respectively. The results show that the adsorption behavior of BUT-201 relates not only to the charge but also to the size/shape of dyes. Furthermore, the adsorbed dyes can be gradually released in the methanol solution of LiNO_3. - Graphical abstract: A porous anionic metal–organic framework (BUT-201) can selectively adsorb the cationic dyes by cationic guest molecule substitution, and the adsorbed dyes can be gradually released in the methanol solution of LiNO_3. - Highlights: • An anionic metal-organic framework (BUT-201) has been synthesized and characterized. • BUT-201 has a three-dimensional (3D) pillared double-layer structure. • BUT-201 can selectively and rapidly adsorb cationic dyes. • The adsorbed dyes can be gradually released in the methanol solution of LiNO_3.

[en] Objective: To observe the effect of X-rays irradiation on IL-18 expression in mouse peritoneal macrophages. Methods: Eiyghty Kunming white mice were divided into 10 groups (eight each group): sham-irradiation, four groups of low-dose irradiation (0.05, 0.075, 0.1 and 0.2 Gy), and five groups of high-dose irradiation (0.5, 1.0, 2.0, 4.0 and 6.0 Gy). The mice were killed 16 h after whole body irradiation (WBI), with X-rays then the peritoneal macrophages were obtained and cultivated with culture medium of RPMI 1640 in culture box with 37 degree C, 5% CO₂ for 72 h. The supernate was gathered to detect the IL-18 expression level in macrophages by ELISA. Results: The IL-18 expresson level in sham-irradiation group was (51.29±3.26) ng·L^-1, IL-18 expression was enhanced after 0.05 Gy WBI, but there was no significant difference (P>0.05). The expression level was increased to (122.78±8.07) ng·L^-1 after 0.075 Gy WBI, and there was significant difference compared with sham-irridiation group (P<0.01). IL-18 expression was increased gradually with the enhancement of X-rays irradiated doses (0.1, 0.2, 0.5 and 1.0 Gy), and the values were (135.32±5.27), (149.40±16.54), (200.42 ± 15.42) and (347.59 ± 17.88) ng·L^-'1, respectively. It peaked after 1.0 Gy irradiation, then it decreased after 2.0, 4.0 and 6.0 Gy irradiation, and the values were (229.49±14.68), (253.79±6.69) and (223.32±20.85) ng·L^-1, respectively, but they were higher than that in sham-irradiation group (P<0.01). Conclusion: Both high-dose and low-dose X-rays irradiation can stimulate IL-18 expression in mouse peritoneal macrophages. (authors)

[en] This paper investigates the infrared absorption spectra of oxygen-related complexes in silicon crystals irradiated with electron (1.5 MeV) at 360 K. Two groups of samples with low [O_i] = 6.9 × 10¹⁷ cm^-3 and high [O_i] = 1.06 × 10¹⁸ cm^-3 were used. We found that the concentration of the VO pairs have different behaviour to the annealing temperature in different concentration of oxygen specimen, it is hardly changed in the higher concentration of oxygen specimen. It was also found that the concentration of VO₂ in lower concentration of oxygen specimen gets to maximum at 450 °C and then dissapears at 500 °C, accompanied with the appearing of VO₃. For both kinds of specimens, the concentration of VO₃ reachs to maximum at 550 °C and does not disappear completely at 600 °C. (condensed matter: electronic structure, electrical, magnetic, and optical properties)

[en] The microstructure of 600MPa Mn-Ti and Nb-V steels for cold stamping axle housing was investigated by means of optical microscope. On the low-frequency fatigue tester MTS-810 with frequency of 10 Hz, the crack propagation rate of two chemical components of the tested steels was tested by three-point bending method. The relationship between the propagation rate da/dN and the amplitude of stress intensity factor ΔK was given. The results showed that the microstructure all of two tested steels were ferrite and pearlite, the grain size of Mn-Ti steel and Nb-V steel was 5.8μm and 3.3μm respectively. The coefficient C and m in Paris equation of Mn-Ti steel and Nb-Vsteel were determined as m=2.6298, C=4.13×10^-12mm/cycle and m=2.6799, C=1.30×10^-12mm/cycle respectively, and the threshold value of crack propagation ΔK_th was 46.50 MPa·m^1/2 and 66.58 MPa·m^1/2, respectively. (paper)

[en] This paper analyzes the reactive power characteristics of the doubly-fed induction generator (DFIG) during the emergency off-grid process caused by the crowbar protection action. Since the action of the crowbar is much faster than the stator switching, the DFIG would be running with a short-term squirrel cage asynchronous operation. The mathematical model of the DFIG under above situation was proposed in this paper, based on which detailed analysis was given on reactive power demands during squirrel-cage asynchronous state of the DFIG. It is achieved that the amount of reactive power absorption was associated with the initial operating conditions such as the terminal voltage and speed before disconnection, which can be prescribed as the s-Q characteristic of DFIG. Finally, analysis on the measured data of the wind farm disconnected event verified the validity of the model. (paper)

[en] In this paper, the sandwich structured polyimide composite films were studied, in which two layers of pure polyimide films were covered on both sides of BZT-BCT@Fe₃O₄/PI composite films. The result indicated that composite films with doped BZT-BCT@Fe₃O₄ had a significant performance in dielectric properties. The phases and microstructures of BZT-BCT@Fe₃O₄ and sandwiched composite films were studied by means of XRD, TEM and SEM. It was found that Fe₃O₄ was present and randomly coated on BZT-BCT. The measured dielectric properties of the composite films show great increased dielectric constant. The dielectric strength of the composite films decreases with the volume fraction raising, however, the relatively high values can be obtained when the fillers content is lower than 5 vol.%. The energy storage density increases significantly at small volume fractions, but decreases significantly at 7 vol.% due to reduced dielectric strength. On the whole, the composite films exhibit higher energy storage density and excellent discharge efficiency when the volume fraction is less than 7%, and the discharge efficiency is still higher than 85% at 265 kV/mm.

[en] Study on the regional tectonic evolution of Hexi Corridor suggested that the uplift and denudation stage of Late Cretaceous-Paleocene is favorable for uranium mineralization and the northern slope zone is believed the favorable area in metallogenic structure for sandstone-type uranium deposits. The lower Cretaceous Chijinpu Formation, Xiagou Formation and Zhonggou Formation are preliminarily identified as the main ore-bearing target layers, with alluvial fans, fan deltas, river deltas, shore-shallow lakes and semi-deep lakes as the main sedimentary types. The Late Jurassic-Early Cretaceous Huahai Basin is a dustpan-shaped fault basin, with fluvial delta facies mainly developed in gentle slope zone and alluvial fan and fan delta mainly developed in steep slope zone. The comprehensive analysis of metallogenic conditions showed that the northern slope zone of Huahai Basin has stable tectonic background, abundant uranium source and favorable sand bodies, rich in organic matter and hydrocarbon reductants, and developed redox zones and soil radon anomaly zones, which are good metallogenic conditions. It is considered that the overlapping area of favorable tectonic location, favorable sand body and soil radon anomaly is the region with great potential for uranium mineralization, mineralization holes have been found for the first time in Huahai Basin which have proved that this area has good uranium metallogenic potential. (authors)

[en] Objective: To investigate a simple and easy method to maintain a stable urine volume and consistent bladder filling during immobilization, CT scanning, plan designing, and radiotherapy using an ultrasonic bladder capacity scanner (BS). Methods: A total of 66 patients with pelvic tumor who were admitted to our hospital and received radiotherapy from 2013 to 2014 were enrolled and required to drink 500 ml water after emptying the bladder. BS was used to measure bladder capacity at four time points. Before radiotherapy, 62 patients with pelvic tumor were randomly divided into two groups in a single-blind trial. Both groups were asked to empty the bladder, drink 500 ml water, and wait for a subjective feeling of urgency of urination. The 42 patients in group 1 were asked to hold urine, and bladder capacity was measured and urine volume was recorded when patients complained of 'urgency of urination'. The patients in group 2 were told that urine volume should reach the standard in plan designing, and BS was used to determine whether the standard was reached. Results: The time from bladder emptying to the subjective feeling of urgency of urination ranged from 0.5 to 1.5 hours; when the patients had a subjective feeling of urgency of urination, the urine volume ranged from 30 to 500 ml. In group 1, when the patients had a subjective feeling of urgency of urination, the difference between the bladder capacity measured and that in plan designing was 30.6%, while in group 2, the difference was 12.6%. Conclusions: The use of BS in monitoring bladder capacity helps patients to develop a stable feeling of urgency of urination and reach the bladder capacity in plan designing and thus maintain a consistent degree of bladder filling. (authors)