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Tytuł:
Is Chinas Textile Industry Still a Labour-Intensive Industry?
Czy chiński przemysł tekstylny nadal jest przemysłem pracochłonnym?
Autorzy:
Zhang, Jianlei
He, Lin
Cheng, Longdi
Powiązania:
https://bibliotekanauki.pl/articles/1419851.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
textile industry
labour-intensive industry
factor intensity classification
capital-labour intensity
technology intensity
przemysł tekstylny
przemysł pracochłonny
klasyfikacja intensywności czynników
kapitałochłonność
intensywność technologii
Opis:
Is China's textile industry (CTI) still a laboor-intensive one? To answer this question, this study measures the capital-labour intensity and technology intensity of CTI and its subsectors during 2006-2018, then applies factor intensity classification and cluster analysis to identify their industrial attributes. The results show that CTI and its sub-sectors are still the labour- and non-technology-intensive. All the indexes of capital-labour intensity and technology intensity of CTI and its sub-sectors are below 100, lower than the average of industry sectors, indicating that they are not separate from the category of labour-intensive industry and still heavily dependent on labour. And cluster analysis verifies the industrial classification results. So CTI still needs to keep on increasing its capital intensity and technology intensity to achieve the goal of industrial transformation and upgrading in the future.
Czy chiński przemysł tekstylny nadal wymaga dużego nakładu pracy? Aby odpowiedzieć na to pytanie zbadano kapitałochłonność i intensywność technologiczną chińskiego przemysłu tekstylnego i jego podsektorów w latach 2006-2018, a następnie zastosowano klasyfikację intensywności czynników i analizę skupień w celu określenia ich atrybutów przemysłowych. Wyniki pokazały, że chiński przemysł tekstylny i jego podsektory nadal są pracochłonne i nie wymagają dużej ilości technologii. Wszystkie wskaźniki kapitałochłonności i technologiczno-pracochłonności chińskiego przemysłu tekstylnego i jego podsektorów kształtują się poniżej 100, czyli są niższe od średniej dla sektorów przemysłu, co wskazuje, że nie są one oddzielone od kategorii przemysłu pracochłonnego. Analiza skupień weryfikuje wyniki klasyfikacji przemysłowej. Chiński przemysł tekstylny nadal musi zwiększać swoją kapitałochłonność i intensywność technologii, aby osiągnąć cel, jakim jest transformacja przemysłowa i modernizacja w przyszłości.
Źródło:
Fibres & Textiles in Eastern Europe; 2021, 1 (145); 13-16
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of iodine value of sodium fatty acids on flotation of collophanite
Autorzy:
Liu, Runzhe
Zhang, Guofan
Zhang, Hui
Liu, Lifen
He, Lin
Chen, Yanfei
Powiązania:
https://bibliotekanauki.pl/articles/109810.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
vcollophanite
fatty acid
iodine value
Opis:
The sodium fatty acids were firstly prepared by fatty acids with different iodine values which were from surfactant extraction using soybean oil fatty acid as raw material in this study. Effects of iodine value of sodium fatty acids on the flotation of collophanite were then investigated by flotation tests, contact angle measurements, adsorption tests, Krafft point measurements, foaming ability tests, and the resistance to the hard water measurements. Results show that the final flotation recovery was directly proportional to the iodine value of sodium fatty acid. Sodium fatty acid with higher iodine value has higher solubility and dispersity in the solutions, and stronger foaming ability and resistance to hard water. After interacting with collophanite, sodium fatty acid with higher iodine value made the mineral more hydrophobic, thus contributing to better flotation performances.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 3; 770-778
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An improved mathematical model for vehicle crashagainst highway guardrails
Autorzy:
He, L.
Lin, X.
Powiązania:
https://bibliotekanauki.pl/articles/224317.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
roadway engineering
mechanical model
roadway guardrail
traffic safety
lateral rotation
vehicle crash
inżynieria drogowa
model mechaniczny
bariera drogowa
poręcz autostradowa
bezpieczeństwo na drodze
Opis:
Highway guardrail is a kind of important road traffic safety facility. When a vehicle is travelling on a highway, it can lose control because of accident. The guardrail can prevent the vehicle from rushing directly out of the road, so as to reduce the injury to the driver in the vehicle. Therefore, the guiding performance, anti-collision performance and buffer performance of the guardrail are important indexes to reflect the highway guardrail safety in the traffic accidents between vehicle and guardrail. The process of collisions between vehicles and guardrails is a complex motion, affected by multiple factors such as the movement patterns and types of vehicles, the types of guardrail, the bending stiffness of the beams, the speed of collision, the angle of collision, etc. The accuracy of energy estimation when vehicle collides with guardrail is the foundation of highway guardrail design, installation and improvement. Many experts and scholars at home and abroad have done a lot of theoretical research and experimental verifications on the safety performance of highway guardrail, and analyzed the anti-collision ability and energy absorption effect of highway guardrail. Single degree of freedom model is the most widely used mathematical model of vehicle collision in highway guardrail. The traditional model is more suitable for calculating the maximum impact force of small vehicles, but it is not accurate for large vehicles. However, due to the unreasonableness of the model in the theoretical derivation process, there is a large error in the mathematical model, especially in estimating the accuracy of the energy value of the large vehicle collision guardrail. Practice shows that the current guardrail cannot withstand the impact of large vehicles. Once large vehicles collide with the corrugated beam guardrail, the guardrail will collapse in most cases, and the vehicle will rush out of the road directly, so it is very difficult to exert the protective function of the guardrail. The anti-collision performance of guardrail is poor, which is related to the existing calculation model, which results in insufficient strength in the design of guardrail.
Źródło:
Archives of Transport; 2018, 48, 4; 41-49
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First-principles calculations on phase transition and elastic properties of CoN
Autorzy:
De-Chun, He
Yong, Peng
Su-Yuan, Li
Yong-Lin, He
Powiązania:
https://bibliotekanauki.pl/articles/1075580.pdf
Data publikacji:
2016-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.20.-x
62.20.de
62.50.-p
62.20.dq
Opis:
The structural phase transition and elastic properties of CoN are investigated by ab initio plane-wave pseudopotential density function theory method. The equilibrium lattice parameters a₀, elastic constants C_{ij}, bulk modulus B₀ and its derivative B'₀ are calculated. From the usual condition of equal enthalpy, the phase transition of CoN from zinc-blende to rocksalt structure occurs at 35.4 GPa with a volume collapse of about 15.6%, consistent with the calculated result 36 GPa (FP-LDA), but an uncertainty is about 4.4 GPa compared with the 31 GPa (ASA-GGA). All three independent elastic constants, C₁₁, C₁₂, and C₄₄ for CoN are calculated from direct computation of stresses generated by small strains. Both C₁₂ and C₄₄ are less sensitive to pressure as compared with C₁₁. The calculated conclusions offer theoretical data for the further research of the mechanical properties for CoN.
Źródło:
Acta Physica Polonica A; 2016, 130, 3; 743-747
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of soft-sensing model for ash content prediction of flotation tailings by image features tailings based on GA-SVMR
Autorzy:
Wang, Guanghui
He, Ting
Kuang, Yali
Lin, Zhe
Powiązania:
https://bibliotekanauki.pl/articles/1449310.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
GA-SVMR
image features
flotation
ash content
Opis:
Ash content is one of the most important properties of coal quality and the ash prediction of coal slurry in floatation is urgent and important for automation of the floatation process. The aim of this paper is to propose a method of ash content prediction for flotation tailings by the use of image analysis. The mean gray value, energy, skewness and coal slurry concentration are highly correlated with coal slurry ash content by correlation analysis based on experiments while the particles’ size has little effect on the ash. Single variable linear prediction model between coal ash content and mean gray value was developed by the LS and its prediction errors were below 7%. For improving the prediction results, an ash prediction model based on GA-SVMR was established with additional three input parameters: energy, skewness, coal slurry concentration. This model has a higher accuracy with predictive errors all below 5% and 80% of them less than 3%. Results indicate that GA-SVMR model has a higher precision compared with LS model and PSO-SVMR model and soft-sensing model based on image features of the slurry can be used as a new method for ash detection of floatation tailings in automatic control process of coal flotation.
Źródło:
Physicochemical Problems of Mineral Processing; 2020, 56, 4; 590-598
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A numerical model for impacts of left-turn non-motorized vehicles on through lane capacity metrics
Autorzy:
He, Lieyun
Lin, Xinming
Liu, Qiang
Tao, Jason X,
Powiązania:
https://bibliotekanauki.pl/articles/1833648.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
traffic design
signalized intersection
permissive phase
traffic lane capacity
regression analysis
projektowanie ruchu
skrzyżowanie sygnalizowane
faza permisywna
przepustowość pasów ruchu
analiza regresji
Opis:
There is a conflict between through motor vehicles and the left-turn non-motorized vehicles, and the capacity of straight-line motor vehicles decreases. This study analyzes the impacts of left-turn non-motorized vehicles on the capacity of through motor vehicle lanes. A correction coefficient model for calculating the reduced capacity of through motor vehicle lanes has been developed based on analysis of the conflicting points at an intersection and the negative exponential function of traffic flow distribution. With consideration of intersection geometric design, channelization, and traffic characteristics, the cor-rection coefficient model was further enhanced by regression to capture the impacts of left-turn non-motorized vehicles from the same and the opposite directions. A simulation with VISSIM is used to validate the developed model. It shows that the calculated capacity from the correction coefficient model is close to the simulation results. The experiment indicates that the derived model is highly accurate in calculating the capacity of through motor vehicle lanes and has potential application for situations of mixed traffic in China. The study shows that the capacity of a through traffic lane at the permitted phase decreases with the increase of left-turning non-motorized vehicles, and the impact of left-turning non-motorized vehicles from the same direction is more significant. The results show that the traffic capacity of straight-line motor vehicle decreases with the increase of the left-turn non-motorized vehicles flow rate and the influence of the left-turn non-motor vehicle is more obvious. It is suggested that in practice, the correction coefficient of non-motor vehicle on the left turn should be 0.88, and the correction coefficient on the left turn should be 0.95, respectively. The study recommends coefficient values for both non-motorized vehicles from the same and opposite directions for use in real applications.
Źródło:
Archives of Transport; 2020, 55, 3; 7-16
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhanced Non-linear Viscoelastic Properties of Polymer Bonded Explosives Based on Graphene and a Neutral Polymeric Bonding Agent
Autorzy:
Lin, C.
He, G.
Liu, J.
Pan, L.
Liu, S.
Powiązania:
https://bibliotekanauki.pl/articles/358748.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
polymer bonded explosives
graphene
neutral polymeric bonding agent
creep behaviour
Opis:
During their long-term storage and transport, polymer bonded explosives (PBXs) will be subjected to complex thermal physical environments with combined thermal and mechanical loads. The creep behaviour results in a change of physical and mechanical properties, which consequently influences the explosive performance. In this work, graphene and a neutral polymeric bonding agent (NPBA) were selected to improve the non-linear creep properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)-based PBXs. The results were compared with the creep response of the corresponding PBXs without additives and with graphene alone. It was observed that graphene and an NPBA exhibited a positive effect, improving the creep resistance of TATB-based PBXs. The compressive and tensile strength of 0.5 wt.% graphene-filled PBXs were improved by 5.1% and 29.2%, respectively, compared to raw TATB-based PBXs without additives. The performance of the PBXs was further enhanced by the addition of 0.1 wt.% NPBA. For a given stress and temperature, the TATB-based PBXs with graphene and NPBA deformed significantly less than the PBXs filled with graphene alone.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 4; 788-805
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure and dynamics of water adsorbed on the lignite surface: Molecular dynamics simulation
Autorzy:
You, Xiaofang
He, Meng
Cao, Xiaoqiang
Lyu, Xianjun
Li, Lin
Powiązania:
https://bibliotekanauki.pl/articles/109688.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
low rank coal
water molecule
oxygen-containing functional groups
molecular dynamics
Opis:
The effects of oxygen-containing functional groups on the structure and dynamic properties of water molecules near a lignite surface were investigated through molecular dynamics (MD) simulations. Because of its complex composition and structure, a graphite surface containing hydroxyl, carboxyl, and carbonyl groups was used to represent the lignite surface model. According to X-ray photoelectron spectroscopic (XPS) results, the composing proportion of hydroxyl, carbonyl and carboxyl is 21:13:6. The density profiles of oxygen and hydrogen atoms indicate that the brown coal surface characteristics influence the structural and dynamic properties of water molecules. The interfacial water is much more ordered than bulk water. The results of the radial distribution functions, mean square displacements, and local self-diffusion coefficients for the water molecules in the vicinity of three oxygen-containing functional groups confirmed that carboxyl groups are the preferential adsorption sites.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 1; 10-20
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fatigue Behavior of MIG-Welded 7N01-T4 Aluminum Alloy with Different V-Groove Angles
Autorzy:
Ma, Zhongwei
Li, Qinghua
Ma, Lin
He, Zhaokun
Liang, Zhimin
Powiązania:
https://bibliotekanauki.pl/articles/351758.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
7N01-T4 aluminum alloy
MIG welding
V-groove angle
fatigue
fracture
Opis:
7N01-T4 aluminum alloy was welded by metal inert gas welding and the influence of V-groove angle on joint fatigue properties was investigated. The results indicate that the volume of fusion zone (FZ) and the grains in FZ become small when the groove angle decreases to 50° from 70°. Most pores distribute at the FZ edge and fewer pores are formed in the small angle joint. The fatigue crack mainly initiates at the transition region between the weld passes due to the pore concentration. The small angle contributes to increasing joint fatigue properties, especially at the low stress level. The fatigue strength of 50° joint is 103.06 MPa which is 15.3% higher than that of 70° joint.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1577-1584
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the degree of polymerization of nonylphenol polyoxyethylene ether on the dewatering of low-rank coal
Autorzy:
Li, Lin
He, Meng
Liu, Mingpu
Lin, Mengyu
Hu, Shanpei
Yu, Hao
Wang, Qingbiao
You, Xiaofang
Powiązania:
https://bibliotekanauki.pl/articles/1449205.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
low-rank coal
NPEO
dewatering
adsorption
long-flame coal
Opis:
In this study, we investigated the effect of the hydrophilic ethylene oxide chain lengths (i.e., degree of polymerization) of nonylphenol polyoxyethylene ether (NPEO-x, x = 8, 10, and 12) on the dewatering of low-rank coal slime through dewatering and adsorption experiments and X-ray photoelectron spectroscopy (XPS) measurements. The dewatering experiments showed that the adsorption of NPEO changed the water content of the low-rank coal slime: NPEO-8 achieved the best effect, followed, in decreasing order, by NPEO-10 and NPEO-12. Adsorption experiments revealed that the adsorption isotherms of NPEO-x on the low-rank coal surface conform with the Langmuir model, and its adsorption kinetics follow the pseudo-second-order kinetic equation. Furthermore, the adsorption is a spontaneous process and controlled by both intraparticle diffusion and liquid film diffusion. The XPS results showed that the adsorption of NPEO-x decreased the content of oxygencontaining groups and, thus, improved the hydrophobicity of the low-rank coal surface. Further, the use of NPEO-x with a low degree of polymerization (x = 8) improves the hydrophobicity of the coal surface and decreases the water content of low-rank coal slime.
Źródło:
Physicochemical Problems of Mineral Processing; 2020, 56, 4; 723-736
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High Cycle Fatigue Performance of Hollow-Extruded 6005A-T6 Aluminum Alloy Characterized by a Layered Microstructure
Autorzy:
Ma, Zhongwei
Ma, Lin
Xu, Bo
Dan, Chuchen
He, Zhaokun
Wang, Yue
Powiązania:
https://bibliotekanauki.pl/articles/354038.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir welding
hollow-extruded 6005A-T6 aluminum alloy
fatigue
fracture
microstructure
Opis:
Sound joint of hollow-extruded 6005A-T6 aluminum alloy was achieved by friction stir welding and its high cycle fatigue performance was mainly investigated. As a result, the joint fatigue limit reaches 128.1 MPa which is 55% of the joint tensile strength. The fatigue fracture mainly occurs at the boundary between the stir zone and thermo-mechanically affected zone due to the large difference in the grain size. This difference is caused by the layered microstructure of the base material. The shell pattern with parallel arcs is the typical morphology in the fracture surface and the distance between arcs is increased with the increase of stress level. The specimen with the fracture located in the stir zone possesses a relatively low fatigue life.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 285-292
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of TiO2/ZSM-5 photocatalysts for degradation of rhodamine
Autorzy:
Liu, Rulai
Hu, Jiapeng
Rau, Juiye
Lin, Hao
He, Huan
Gao, Biao
Lai, Wenliang
Powiązania:
https://bibliotekanauki.pl/articles/2086909.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
photodegradation
TiO2
ZSM-5
kaolin clay
fotodegradacja
glinka kaolinowa
Opis:
ZSM-5 synthesized by the hydrothermal method from raw kaolin clay was used as support to prepare TiO2/ZSM-5 catalysts via the sol-gel method. All prepared samples were characterized by X-ray fluorescence spectrometry (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), ultraviolet-visible spectroscopy (UV-Vis), transmission electron microscopy (TEM), particle size analysis and surface area measurement. The photocatalytic performance of TiO2/ZSM-5 was investigated based on rhodamine B (RhB) removal under UV radiation (450-600 nm. The results showed that the kaolin clay was successfully transformed into ZSM-5. The BET surface area and pore size distribution of the synthesized ZSM-5 were 364 m2/g and 0.54 nm, respectively. SEM and TEM revealed that TiO2 nanoparticles were well distributed on the surface of ZSM-5. The composite TiO2/ZSM-5 catalyst showed 98.53% removal, which is higher than that of pure TiO2 (80.13%) due to adsorption and degradation of RhB (5.0 mg/dm3) under 60 min UV light irradiation at 1 g/dm3 photocatalyst loading. The synergistic effect of TiO22 and ZSM-5, including adsorption, conduction band electron (e-), and valence-band holes (h+), makes the composite superior to pure TiO2, showing its potential for the degradation of organic dye.
Źródło:
Environment Protection Engineering; 2022, 48, 2; 29--42
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of flow softening mechanisms of a nickel-based superalloy with o phase
Autorzy:
Lin, Y. C.
He, D.-G
Chen, M. S.
Chen, X.-M.
Zhao, C.-Y.
Ma, X.
Powiązania:
https://bibliotekanauki.pl/articles/958203.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alloys
hot deformation
flow softening behavior
microstructural evolution
Opis:
The flow softening behaviors of a nickel-based superalloy with o phase are investigated by hot compression tests over wide ranges of deformation temperature and strain rate. Electron backscattered diffraction (EBSD). optical microscopy (OM), and scanning electron microscopy (SEM) are employed to study the flow softening mechanisms of the studied superalloy. It is found that the flow softening behaviors of the studied superalloy are sensitive to deformation temperature and strain rate. At high strain rate and low deformation temperature, the obvious flow softening behaviors occur. With the increase of deformation temperature or decrease of strain rate, the flow softening degree becomes weaken. At high strain rate (1s-1), the flow softening is mostly induced by the plastic deformation heating and flow localization. However, at low strain rate domains (0.001-0.01s-1), the effects of deformation heating on flow softening are slight. Moreover, the flow softening at low strain rates is mainly induced by the discontinuous dynamic recrystallization and the dissolution of 6 phase (Ni3Nb).
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 3; 1537-1546
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical trapping forces of focused circular partially coherent beams on Rayleigh particles
Autorzy:
Yu, Chaoqun
Chen, Fuchang
Zeng, Jun
Huang, Cheng
He, Zhimin
Lin, Huichuan
Zhang, Yongtao
Chen, Ziyang
Pu, Jixiong
Powiązania:
https://bibliotekanauki.pl/articles/2172861.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
tight focusing
radially polarized
circular partially coherent
spherical aberration
optical trapping force
Opis:
The optical trapping forces of tightly-focused radially polarized circular partially coherent beams on Rayleigh particles are theoretically investigated. Numerical calculations are performed to study the optical trapping forces on Rayleigh particles for different initial coherent length of the incident circular partially coherent beams. The results show that the magnitude of the gradient force decreases with the reduction of the initial coherent length of the focused radially polarized circular partially coherent beams, while the balanced position (i.e., the position where the optical trapping forces becomes zero) stays constant. Moreover, the focused spot gradually elongates along the optical axis with the reduction of the initial coherent length, and the axial gradient force on Rayleigh particles also decreases gradually with the reduction of the intensity gradient in axial direction. As there exists an spherical aberrant in the focusing optical system, the focal spot in the direction of the optical axis becomes trumpet-shaped, and the optical trapping forces on Rayleigh particles change as well.
Źródło:
Optica Applicata; 2022, 52, 4; 575--583
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular cloning, expression and characterization of Bmserpin-2 gene from Bombyx mori
Autorzy:
Pan, Ye
Xia, Hengchuan
Lü, Peng
Chen, KePing
Yao, Qin
Chen, Huiqin
Gao, Lu
He, Yuanqing
Wang, Lin
Powiązania:
https://bibliotekanauki.pl/articles/1040486.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
serpin-2
Bombyx mori
bioinformatics
subcellular location
qPCR
Opis:
Serpins are a broadly distributed family of protease inhibitors. In this study, the gene encoding Bombyx mori serpin-2 (Bmserpin-2) was cloned and expressed in E. coli. The Bmserpin-2 cDNA contains a 1125 bp open reading frame (ORF). The deduced protein has 374 amino-acid residues, contains a conserved SERPIN domain and shares extensive homology with other invertebrate serpins. RT-PCR analysis showed that Bmserpin-2 was expressed in all developmental stages of B. mori larvae and various larval tissues. Subcellular localization analysis indicated that Bmserpin-2 protein was located in the cytoplasm. Interestingly, real-time quantitative PCR revealed that the expression of Bmserpin-2 in the midgut of susceptible B. mori strain 306 significantly increased at 72 hours post inoculation (hpi) when infected with BmNPV. However, there was no significant increase of the Bmserpin-2 expression in resistant strain NB infected with BmNPV. Thus, our data indicates that Bmserpin-2 may be involved in B. mori antiviral response.
Źródło:
Acta Biochimica Polonica; 2009, 56, 4; 671-677
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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