Search results

After late N23, E32 source rocks in Zhahaquan depression begin entering the oil generation peak,and a large number of oil and gas have accumulated in traps.
Two plateau uplifts happen in the first deformation stage and the southwest Qaidam Basin has experienced a paleosedimentary environment from transgression to standing water, which forming fine-grained sediments and making E31~ N1 organic matters the main source.In this stage, source rocks of E31 enter hydrocarbon threshold at Early N1.However,the hydrocarbon generated at this time immediately suffer damaged to bitumen because of the strong structure movement at Middle N1.
Furthermore, source rocks of E32 in depression has been matured at N23 and a larege number of oil and gas have accumulated in traps of halling wall after the adjustment in Quaternary.

Marshall and Palmer (M-P) proposed an appropriate analytical approximation of the DSD modeling [5]; the exponential distribution given by the following relation in Eq. 1, , (1) where n(D) is the number density (mm–1m–3) of rain drops per unit volume and D (mm) is the drop diameter.
In our analysis, we obtain the total number of particles by integrating Eq. 3 over all diameters using a three-parameter gamma distribution with parameters(m+ 4) = 9.02R0.114, b= 8.37R– 0.0715 and NT = 255R0.187that fit well the rain data from tropical regions [7].
(13) Based on the recommended prediction procedure by ITU-R [10], the rain specific attenuation grain (dB/km) is calculated from the rain rate Rusing the power-law relationship as , (14) and the empirical parameters k and α are determined as functions of rain characteristics.

Introduction The superduplex stainless steels (SDSS) are classified as materials having a PREN (Pitting Resistance Equivalent Number) above 40 [1] it is meaning a high resistance to corrosion, and also presents high mechanical strength [2].
Since high temperatures and then abrupt cooling occurs, ferrite saturation of austenite stabilizing elements such as Ni may occur, and during cooling or subsequent passes, a localized precipitation of small austenite grains, known as secondary austenite (γ2) occurred [3].
· After the PWHT the hardness in the FZ was uniform with the BM and decreased from 300 HV for 260 HV; Acknowledgment The authors would like to thank LNNano/CNPEM for the use of the durometer Future-Tech FV 800 model, the FEM/UNICAMP, the Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq) – process number 142260/2016-9, the Espaço da Escrita – Pró-Reitoria de Pesquisa – UNICAMP - for the language services provided and SULZER BRASIL S.A. by the material supply.

Hydrogen is a kind of available energy as “secondary energy” with a number of advantages.
Although iron oxide is still the main catalyst, the structure of Fe3O4 lattice may be changed after adding Cr2O3, namely Cr3+ ion replaces some Fe3+ ion in Fe3O4 structure, forming (Fe,Cr)3O4 solid solution structure and restraining the grain growth, thus the catalyzed ability of Fe3O4 is improved.
The number is huge and the method will become one important source of hydrogen energy in China.

Bend is made across the metal grain or in the direction of rolling.
Can be produced in a minimum number of set-ups.
Modification in Mounting Bracket (DFA): The two numbers brackets are welded on convergent cylindrical portion of thrust chamber after brazing.

At present, there are a number of papers published about the magnetic properties, butylene dehydrogenation and other contents of ZnFe2O4 materials [3].
According to the Scherrer formula calculation, the grain size was about 29.5nm.
Fluorescent light, which had the longer wavelengths and the lower loading voltage, was used, the number of the excitation light free electrons and holes was small.

Ferrous powder (laser form ST 100) of 20 mm grain size with a polymer binder of 3 mm is used for the manufacturing of the specimens which is later infiltrated with Bronze.
Since there are a number of variables, factorial design approach was used for designing the experiment.
Fig. 3 SEM images of lateral surface of specimens Conclusions A number of test specimens (manufactured by SLS technology) were evaluated to determine the surface roughness and topology on the lateral surface along the built direction.

Main features of EP1C3T144C6.① 2,910 logic elements (LE); ② 13 M4K RAM blocks (4Kbit + parity); ③ 59,904 a total amount of RAM (bit) ④ 1 PLLs; ⑤ 104 largest user I / O number; ⑥ 627,376 bit binary configuration file (. rbf) Size (bit).
Provided full use of the chip PLL (phase locked loop) to achieve resolution of the timer 4.17ns, and designed a number of counters inside the EP1C3T144C6 automatically returned to the ultrasonic echo count, re-use of the internal MCU 32-bit timer read out, after the operation, the thickness can be tested.
Cr-Mo steel, the average grain size of the ultrasonic nondestructive evaluation [J].

The results indicate the scope of the equiaxed crystal grain expanded and the growth of the column crystal is restrained in the meantime, the coarse columnar crystals has almost disappeared, and the orientation of the columnar crystal also has been changed slightly, the treatment effect of melt were closely related to the variation of liquid metal structure by applying EPM.
According to classical nucleation theory, Gibbs free energy is changed in phase transition process, it can be expressed as: (1) Where, n is nucleation number, ∆GV is free energy difference value between new phase atoms and old phase atoms; η is Shape coefficient; ηn2/3 is the superficial area of nuclei; γ is the average surface energy; Es is every atom strain energy of the nucleation.
According to the law of thermodynamics, only when the temperature is below transition temperature, and ∆GV is negative, namely |∆GV |> Es, the nucleation could began, the critical nucleation energy in solid-phase transformation is obtained: (2) The nucleation rate of solid transformation is: (3) Where, N is each phase atomic number of unit volume; ν is atomic vibration frequency; is the atomic migration-activate energy between new phase and old phase.

For instance, the bond strength of adhesives is directly correlated to the number of OH groups [34].
An increasing number of applications, however, requires temperatures below 500 °C.
Different interactions were discussed for hydrophobic bonded wafers [75] and grain boundaries in sintered silicon [76].
Based on theoretical models and experimental results a large number of defects were described [103, 104].
Analogous analysis of dislocation arrangements in 2-dimensional networks (grain boundaries) are still missing.