Central Training Institute (Hindi:केंद्रीय प्रशिक्षण संस्थान), popularly known as CTI Jabalpur, is located in Nayagaon, Jabalpur, Madhya Pradesh, India. It is an apex engineering and civil service training institute of the Madhya Pradesh Poorv Kshetra Vidyut Vitaran Company Ltd (MPPKVVCL), wholly owned by the Government of Madhya Pradesh. The institute provides technical and managerial training to assistant engineers, junior engineers, accounts officers, HR managers, office assistants, line men, and testing assistants.The Institute was established in 2006 after the State Electricity Board split into two divisions, a Power Distribution Engineering division and a Management training Center for employees of MPPKVVCL. The Institute is recognised by the Indian Ministry of Power, and is a partner training institute of the Power Finance Corporation and the Rural Electrification Corporation. The institute is an ISO 9001:2008 certified training institute.
Reducing carbon emissions and improving carbon efficiency are global responsibilities, and highspeed rail (HSR), as a new form of transportation infrastructure, plays a crucial role in this process. This paper employs the difference-in-difference model to assess the impact of HSR connectivity on carbon emission efficiency. The results show that HSR connectivity, as well as the number of stations and routes, increased carbon emission efficiency by 0.4%, 0.2%, and 0.3%, respectively. The effect is more pronounced in smaller cities and regions with lower marketization. Micro-level data reveals that the effective impact radius of HSR is 2000 m. HSR increases fossil energy consumption in firms while reducing electricity consumption. The primary mechanism by which HSR reduces overall carbon emissions is by improving the fossil energy carbon emission efficiency of firms. Parallel trend tests, placebo tests, and endogeneity analyses all support these findings. The results provide valuable insights for the location of industrial parks near HSR stations and highlight that power rationing may limit the speed of carbon reduction.
The organic matter in waste activated sludge (WAS) is extracted via a NaOH/urea aqueous solution combined with ultrasonic treatment to obtain an organic-enriched extractant (S-NaOH/urea). N-doped hierarchical porous carbons (NPCs) are prepared by dissolving cellulose in S-NaOH/urea followed by carbonization and in situ activation. The NaOH/urea aqueous solution serves as a trifunctional medium: organic extractant for WAS, chemical activator, and nitrogen precursor during pyrolysis, significantly enhancing process efficiency while minimizing secondary reagent consumption. Structural characterization revealed that the obtained NPCs exhibit well-defined hierarchical porosity and proper heteroatom doping, endowing them with exceptional capacitive performance (390.3 F g-1 at 0.5 A g-1) and excellent cycling stability in alkaline electrolytes. Furthermore, the contributions of surface control and diffusion control from nitrogen doping were also analyzed. Additionally, the carbon materials obtained from S-NaOH/urea with wheat straw and corncob also exhibit hierarchically porous networks and favorable electrochemical properties. These findings suggested that this strategy not only provides a novel method for the resource utilization of WAS but also offers a potentially convenient synthesis route for multisource biomass-based heteroatom-doped hierarchical porous carbons.
This study investigates the application of NaP1 zeolite, synthesized hydrothermally from F-class fly ash, for treating radium-contaminated mine water. The objective was to assess the efficiency of NaP1 zeolite in removing radium ions from real mine water samples. Three samples with high concentrations of 226Ra and 228Ra and total dissolved cation contents ranging from 48.9 to 89.0 g/L were treated using sequential batch and fixed bed experiments. The NaP1 zeolite demonstrated high treatment efficiency for radium-sulfate and radium-strontium water, with removal rates of 97 % and 82 % for the 1st liter, and 54 % for the 53th and 9th liters, respectively. However, for radium-barium water, the maximum treatment efficiency was 45 % for the 1st liter, dropping to 0 % after 4th liter. This decline was attributed to the competitive adsorption of barium ions, which reduced the radium removal efficiency more rapidly than in the other water types. An additional experiment with synthetic barium water confirmed that 10 g of NaP1 zeolite adsorbed 1 g of Ba from one liter of distilled water. These results highlight the potential of NaP1 zeolite for radium removal in certain contexts, although its efficiency may be hindered by the presence of competing ions such as barium.
PURPOSE:This study aimed to evaluate the prognosis of the not evaluated (NE) group by comparing it with the lost to follow-up (LTFU) group among patients with multidrug/rifampin-resistant tuberculosis (MDR/RR-TB). MATERIALS AND METHODS:This was a retrospective longitudinal follow-up study using an integrated database constructed by data linkage of the three national databases. This database included 7226 cases of MDR/RR-TB notified between 2011 and 2017 in South Korea. RESULTS:Among the 7226 MDR/RR-TB cases, 730 (10.1%) were classified as LTFU group, and 353 (4.9%) as NE group. When comparing NE group with LTFU group, there were no significant differences in the all-cause mortality rate (18.1% vs. 13.8%, p=0.065), median time to death [404 days (interquartile range, IQR 46-850) vs. 443 days (IQR 185-1157), p=0.140], and retreatment rate (26.9% vs. 22.2%, p=0.090). After adjusting for potential confounders, the adjusted hazard ratio (aHR) for all-cause mortality (aHR 1.11; 95% confidence interval 0.80-1.53; p=0.531) in NE group was not significantly different than that in LTFU group. Among retreated cases, NE group had a higher treatment success rate (57.9% vs 43.8%, p=0.029) and a lower LTFU rate (11.6% vs 38.3%, p<0.001) compared to LTFU group. CONCLUSION:NE group had an unfavorable outcome comparable to LTFU group, suggesting undetected cases of LTFU or deaths during the referral process. Establishing an efficient patient referral system would contribute to reducing the incidence of NE cases.
This paper presents the results of a two-year radon risk study conducted at the Historic Silver Mine in Tarnowskie Góry. During this period, continuous measurements of radon activity concentration were carried out in three-month cycles at 30 points distributed along the tourist route. The average radon activity concentration was 1160 Bq/m3 for the first year of measurements and 1210 Bq/m3 in the second year. Based on the collected data, seasonal correction factors considering seasonal variations in radon activity concentration (SCF) were determined. The obtained factors are in the range of 0.8–1.4. In addition, the spatial variation of radon activity concentration was studied at selected locations of the mine at different heights of the location of the detectors and their distribution on opposite sides of the excavation. Based on the collected data, effective doses were calculated. Assuming annual working time of 300 h, which was specified for workers, the average annual dose is 0.6 and 1.3 mSv for the conversion factor of 1.4 mSv/(mJ/m3⋅h) indicated in Polish law and 3.1 mSv/(mJ/m3⋅h) as recommended in the ICRP report no 137 for underground mines respectively. For the annual working time of 1800 h, the corresponding doses would be 3.4 mSv and 7.4 mSv.
