333 K

Top PDF 333 K:

Corrosion inhibition and adsorption mechanism studies of Hunteria umbellata seed husk extracts on mild steel immersed in acidic solutions

Corrosion inhibition and adsorption mechanism studies of Hunteria umbellata seed husk extracts on mild steel immersed in acidic solutions

Table 3 Values of corrosion rate of mild steel in the presence and absence of HCl extract of Hunteria umbellata seed husk at temperature range 303–333 K... of HCl extract of H.[r]

9 Read more

Adsorption Properties and Inhibitive Effect of Antibacterial Drug on Carbon Steel Corrosion in HCl Medium

Adsorption Properties and Inhibitive Effect of Antibacterial Drug on Carbon Steel Corrosion in HCl Medium

For this purpose, the values of surface coverage ( θ ) at different concentrations of Cephradine in 1.0 M HCl acid in the temperature range (303–333 K) were calculated to explain the bes[r]

11 Read more

Effect of Age Hardening to Metal Structure and Tribology Characteristics of Lead Free Bismuth Bronze Casting Containing Sulfur

Effect of Age Hardening to Metal Structure and Tribology Characteristics of Lead Free Bismuth Bronze Casting Containing Sulfur

The age-hardening behavior and low friction characteristics of Cu-Sn-Bi alloy with 1.5 mass% nickel and 0.3 mass% sulfur (PBX alloy) have been investigated. The PBX alloy showed age-hardening when aged at the temperature range of 623 K to 743 K for over 0.6 ks after solution treatment at α+γ stable temperature. Peak hardness was obtained by aging at 673 K. After aging at the temperature range of 573 K to 743 K, the supersaturated solid solution part changed into eutectoid structure in which fine δ precipitated. The age-hardening of the PBX alloy showed a two-step hardening. The first step began within 0.6 ks and then hardness increased slowly with aging time. Aged at 673 K, the eutec- toid matrix changed into a pine needle-shaped structure. The structure is a mixed structure of a bainitic structure and quasi-martensite having mid-rib structures in several places. Aged at 743 K, the macro crystal grain size did not change in 3.6 ks, but aging over 14.4 ks caused macro crystal grain refinement. The dynamic friction coefficient of the PBX alloy in an oil bath of 333 K was smaller than that of JIS CAC603 alloy due to the eutectoid structure of the α phase and fine δ phase.[doi:10.2320/matertrans.F-M2017831]
Show more

7 Read more

International Journal of Emerging Technology and Advanced Engineering Website: www.ijetae.com ( ISSN 2250-2459, ISO 9001:2008 Certified Journal,(Volume 5, Issue 6, June 2015)

International Journal of Emerging Technology and Advanced Engineering Website: www.ijetae.com ( ISSN 2250-2459, ISO 9001:2008 Certified Journal,(Volume 5, Issue 6, June 2015)

The polarograms of 4-(substituted) acetophenone salicylyl hydrazone at pH 4.1 are recorded at 303, 313, 323, 333 K to study the effect of temperature on the limiting current and the half-wave potential and the results are presented in Table 5. The compounds exhibit well-defined single cathodic waves at all temperatures in the pH range of study. The linear plots of i l versus h

5 Read more

Electrochemical behaviour and biological screening of 4 (substituted) acetophenone salicylyl hydrazones

Electrochemical behaviour and biological screening of 4 (substituted) acetophenone salicylyl hydrazones

The polarograms of 4-(substituted) acetophenone salicylyl hydrazone at pH 4.1 are recorded at 303, 313, 323, 333 K to study the effect of temperature on the limiting current and the half-wave potential and the results are presented in Table 5. The compounds exhibit well-defined single cathodic waves at all temperatures in the pH range of study. The linear plots of i l versus h 1/2 suggest that the limiting current is diffusion controlled at all temperatures. The

7 Read more

Optimization of Biodiesel Production from Waste Cooking Oil in a Continuous Mesoscale Oscillatory Baffled Reactor

Optimization of Biodiesel Production from Waste Cooking Oil in a Continuous Mesoscale Oscillatory Baffled Reactor

parameters were fixed at a frequency of 4.5 Hz, a methanol-to-oil molar ratio of 9:1, an amount of catalyst (KOH) of 2.5 wt% and a residence time of 60 s. As shown in Fig. 4, the FAME content increases almost linearly with increasing reaction temperature and reaches a maximum level of 98.1% at 333 K. Beyond the optimum reaction temperature of 333 K, the FAME content declined significantly with further increasing reaction temperature from 333 to 338 K. The results were in good agreement with previous investigations that an increase in reaction temperature beyond the boiling point of alcohol caused the reduction in FAME content [13, 27]. This is because at a higher temperature, more methanol becomes gaseous phase with the reduction of methanol concentration in the liquid phase effectively, causing the methanol-to-oil ratio to be too low.
Show more

10 Read more

Tri­aqua­tris­(2,6 di­nitro­phenolato)­neodymium(III)

Tri­aqua­tris­(2,6 di­nitro­phenolato)­neodymium(III)

chloride solution was slowly added dropwise to the ligand solution. The reaction mixture was stirred for 3 h at 333 K and then cooled to room temperature. Light-yellow crystals of (I) were obtained at room temperature over a period of a few weeks. The complex was recrys- tallized from distilled water.

11 Read more

Corrosion Inhibition of 13Cr Stainless Steel in HCl/HAc/HF Acid Solution

Corrosion Inhibition of 13Cr Stainless Steel in HCl/HAc/HF Acid Solution

Polarization and electrochemical impedance spectroscopy (EIS) were used to investigate the corrosion behavior of 13Cr stainless steel in acid solution at 333 K. The reference electrode, auxiliary electrode and working electrode used the standard chlorinated silver, platinum electrode and 13Cr stainless steel of 1 cm 2 (10 mm × 10 mm), respectively. All electrochemical measurements were obtained in acid solution, after reaching a steady open circuit potential. All potentials were measured versus SCE. Potentiodynamic polarization curves were obtained at the scan rate of 1.0 mV·s -1 in the potential range from - 300 to + 300 mV. EIS measurements were carried out using AC signals of amplitude 5 mV peak- to-peak at the open circuit potential (E oc ) in the frequency range 10 5 Hz to 10 -2 Hz.
Show more

12 Read more

SYMANTEC CORP (SYMC) 10-K

SYMANTEC CORP (SYMC) 10-K

We consent to the incorporation by reference in the registration statements on Form S-8 (Nos. 333-127958, 333-127959, 333-139230 and 333-169330) of Symantec Corporation of our report dat[r]

136 Read more

Refbacks

Refbacks

After reviewing the processes with RPNs, the piping designers revised the standard of design. The quality control team then recalculated the RPNs. New RPNs were less than 12[r]

22 Read more

Increased risk of severe congenital heart defects in offspring exposed to selective serotonin reuptake inhibitors in early pregnancy – an epidemiological study using validated EUROCAT data

Increased risk of severe congenital heart defects in offspring exposed to selective serotonin reuptake inhibitors in early pregnancy – an epidemiological study using validated EUROCAT data

Knudsen et al BMC Pregnancy and Childbirth 2014, 14 333 http //www biomedcentral com/1471 2393/14/333 RESEARCH ARTICLE Open Access Increased risk of severe congenital heart defects in offspring expose[.]

8 Read more

Downlink packet scheduling and resource allocation in EPON WiMAX hybrid access networks

Downlink packet scheduling and resource allocation in EPON WiMAX hybrid access networks

Next, we consider adding the AL-FEC scheme to improve the transmission efficiency. We assume the maximum group block size, n, is 6, and there are 16 code rates, ranging from 1/6 to 1 where code rate k/n denotes k packets are encoded into n packets. With AL-FEC, a better MCS with higher packet error rate could be selected because AL-FEC could recover lost packets. Table 5 shows the optimal combination of MCS and AL-FEC selected by the MFSA algorithm. From the data presented in Table 5, it can be observed that, when AL-FEC was applied, better modulation could be used while the GER could still be guaranteed. As a conse- quence, more bytes could be transmitted during one time slot. The bold values in Tables 4 and 5 showed that better data rate could be achieved, under different dis- tances, when AL-FEC was adopted. For example, when an SS is 0.3KM away from the serving ONU-BS, the MFSA selects 64QAM_2/3 as the modulation scheme and an AL-FEC with code rate of 5/6 which yields a data rate of 20 bytes per time slot. However, if AL-FEC was not applied, ONU-BS could only select the 16QAM_3/4
Show more

13 Read more

Histopathological changes in the liver of tree shrew (Tupaia belangeri chinensis) persistently infected with hepatitis B virus

Histopathological changes in the liver of tree shrew (Tupaia belangeri chinensis) persistently infected with hepatitis B virus

Ruan et al Virology Journal 2013, 10 333 http //www virologyj com/content/10/1/333 RESEARCH Open Access Histopathological changes in the liver of tree shrew (Tupaia belangeri chinensis) persistently i[.]

11 Read more

Jay Heizer. Barry Render. Principles of OPERATIONS MANAGEMENT. Prentice Hall. Seventh Edition PEARSON

Jay Heizer. Barry Render. Principles of OPERATIONS MANAGEMENT. Prentice Hall. Seventh Edition PEARSON

Summary 332 * Key Terms 332 * Using Software to Solve Location Problems 333 * Solved Problems 333 * Self-Test 335 * Active Model Exercise 335 • Internet and Student CD-ROM/ DVD Exercises[r]

10 Read more

Properties of third order half linear dynamic equations with an unbounded neutral coefficient

Properties of third order half linear dynamic equations with an unbounded neutral coefficient

Li and Zhang Advances in Difference Equations 2013, 2013 333 http //www advancesindifferenceequations com/content/2013/1/333 R ES EARCH Open Access Properties of third order half linear dynamic equati[.]

8 Read more

Rigel 333 Multi Parameter Patient Simulator Version 2.0

Rigel 333 Multi Parameter Patient Simulator Version 2.0

Rigel Medical reserves the right to discontinue the Rigel 333 at any time, and change its specifications, price, or design without notice and without incurring any obligation. Rigel Medical guarantees availability of service parts for 5 years after the manufacture of the unit is discontinued.

37 Read more

Increased eIF2α Phosphorylation Attenuates Replication of Herpes Simplex Virus 2 vhs Mutants in Mouse Embryonic Fibroblasts and Correlates with Reduced Accumulation of the PKR Antagonist ICP34.5

Increased eIF2α Phosphorylation Attenuates Replication of Herpes Simplex Virus 2 vhs Mutants in Mouse Embryonic Fibroblasts and Correlates with Reduced Accumulation of the PKR Antagonist ICP34.5

Less ICP34.5 accumulates in MEFs infected with vhs mu- tant viruses. Experiments thus far have demonstrated that changes in PKR level or activity do not explain the accumula- tion of phosphorylated eIF2 ␣ in MEFs infected with vhs mu- tants. An alternative hypothesis is that the PKR antagonist ICP34.5, which is critical for redirecting PP1 ␣ to dephosphor- ylate eIF2 ␣ during infection (22), is not synthesized efficiently in MEFs infected with vhs mutants compared to in those in- fected with wild-type virus. To examine levels of ICP34.5 pro- tein at various times throughout infection, wild-type 129Sv/Ev MEFs were mock infected or infected with 333, 333d41, 333d41R, or the ⌬ TK ⫺ virus and collected at 3, 6, and 9 h p.i. Samples were assessed by Western blot analysis with antibod- ies against ICP34.5, phosphorylated eIF2 ␣ , eIF2 ␣ , and HSV-2. Loading was normalized to total eIF2 ␣ (Fig. 7C). The ICP34.5 antibody recognizes two bands of approximately 28 and 37 kDa (Fig. 7A), both of which are diminished in the presence of small interfering RNA against HSV-2 ICP34.5 (55), suggesting
Show more

12 Read more

The influence of clathrate -cyclodextrin with para-amino-benzoic acid and silyl group over behavioral performance of laboratory animals

The influence of clathrate -cyclodextrin with para-amino-benzoic acid and silyl group over behavioral performance of laboratory animals

[1] K Uekama, F Hirayama, T. Irie. Chem. Rev.,1998. 98 (5), 2045-2076. [2] ME Davis, ME Brewster, Nature Rev. Drug Discovery, 2004.3, 1023-1035. [3] K Uekama, K Minami, F Hirayama. J. Med. Chem., 1997. 40 (17), 2755-2761. [4] K. Minami, F. Hirayama, K. Uekama. J. Pharm. Sci., 1998. 87 (6), 715-720. [5] F Hirayama, M Kamada, HYano et al. J. Incl. Phenom, 2002. 44, 159-161. [6] H Yano, F Hirayama, M Kamada. J. Cont. Rel., 2002.79 (1-3), 103-112.

5 Read more

Second-Generation Rabies Virus-Based Vaccine Vectors Expressing Human Immunodeficiency Virus Type 1 Gag Have Greatly Reduced Pathogenicity but Are Highly Immunogenic

Second-Generation Rabies Virus-Based Vaccine Vectors Expressing Human Immunodeficiency Virus Type 1 Gag Have Greatly Reduced Pathogenicity but Are Highly Immunogenic

It is interesting that the vector BNSP grows similarly to SPBN; this indicates that a new transcription unit without a foreign gene is ignored by the polymerase complex, an obser- vation we previously made for transcription units in VSV- based vectors (M. J. Schnell and J. K. Rose, unpublished data). Attenuated vaccine vectors are safe after i.c. inoculation in mice. Our previous studies indicate that the vaccine vector SPBN is apathogenic after peripheral inoculation in mice but lethal after i.c. inoculation. It has also been shown by our group and others that a similar vector containing an amino acid change from arginine (R) to glutamic acid (E) or aspartic acid (D) in the RV G protein was completely apathogenic, even after i.c. injection (17, 20, 23). However, it was unknown how the deletion of the G CD or the combination of the CD deletion with the 333 mutation would affect the pathogenicity of these vaccine vehicles. In addition, no data are available for RV-based vectors expressing a foreign gene from a position further upstream than the G gene. Therefore, seven groups of 10 8-week-old Swiss-Webster mice were infected i.c. with 2 ⫻ 10 5 infectious particles. The mice were observed daily for any
Show more

8 Read more

Larger Dose Reductions of Vancomycin Required in Neonates with Patent Ductus Arteriosus Receiving Indomethacin versus Ibuprofen

Larger Dose Reductions of Vancomycin Required in Neonates with Patent Ductus Arteriosus Receiving Indomethacin versus Ibuprofen

administration; Orange circles – vancomycin clearance in preterm neonates with ibuprofen co- 333. administration[r]

24 Read more

Show all 10000 documents...