According to the nonequilibrium solvation theory studies, a constrained equilibrium principle is introduced and applied to the derivations of the nonequilibrium solvation energy, and a reasonable expression of the spe...According to the nonequilibrium solvation theory studies, a constrained equilibrium principle is introduced and applied to the derivations of the nonequilibrium solvation energy, and a reasonable expression of the spectral shift of the electronic absorption spectra is deduced. Furthermore, the lowest transition of p-nitroaniline (pNA) in water is investigated by time-dependent density functional theory method. In addition, the details of excited state properties of pNA are discussed. Using our novel expression of the spectral shift, the value of -0.99 eV is obtained for π→π^* transition in water, which is in good agreement with the available experimental result of -0.98 eV.展开更多
The simple goal of this work is constructing a cheap, demonstrative model of a thermoacoustic refrigerator. To this end, the author succeeded in designing, building and testing the first pilot thermoacoustic refrigera...The simple goal of this work is constructing a cheap, demonstrative model of a thermoacoustic refrigerator. To this end, the author succeeded in designing, building and testing the first pilot thermoacoustic refrigeration in Jordan basing on the theory of using sound waves as a coolant. The pilot thermoacoustic refrigerator was built from inexpensive and readily available parts in Mutah University, Jordan. The thermoacoustic refrigerator was operated for several hours. Consequentially, this experiment proved that thermoacoustic refrigerators were technically possible. Additionally, this experiment did yield some findings regarding the efficiency of thermoacoustic refrigeration. On other hand, solid flow CFD software was used to simulate the performance of thermoacoustic refrigerator especially the temperature and velocity inside the refrigerator. In general, very good agreement was deduced.展开更多
The primary objective of this study is to assess the impact of a pharmacist-implemented protocol on number of post-operative alvimopan doses. The secondary objective of this study is to assess LOS (length of stay), ...The primary objective of this study is to assess the impact of a pharmacist-implemented protocol on number of post-operative alvimopan doses. The secondary objective of this study is to assess LOS (length of stay), in days, before and after protocol implementation. A retrospective chart review was conducted from October 2015 through March 2016 for all laparoscopic colorectal surgeries. Number of post-operative alvimopan doses received and LOS was recorded for each patient that received at least one dose of alvimopan. Comparative data, before protocol implementation, from November 2014 through June 2015 were analyzed against the study data. Number of post-operative alvimopan doses and LOS were recorded. The mean number of doses was 6.41 in the comparator group and 4.25 in the study group (probability size P 〈 0.001), which did meet statistical significance. Although the secondary objective was not statistically significant, LOS slightly decreased as the mean LOS was 5.01 days in the comparator group versus 4.49 days in the study group (P = 0.256). At the current price of $120 per capsule, close to $30,000 was saved during the study period, projecting an annual cost savings of approximately $68,000. Results from this study show that pharmacists can play a vital role in cost savings and ensuring appropriate use of certain high-risk medications, like alvimopan, without increasing overall length of stay.展开更多
Rapid mixing and chlorine saving are two important problems that most drinking water industries are focus on, and this paper adopts chemical induction unit to compare with water jet injector to study what merits chemi...Rapid mixing and chlorine saving are two important problems that most drinking water industries are focus on, and this paper adopts chemical induction unit to compare with water jet injector to study what merits chemical induction unit has. The experiment chose coefficient of variability of chlorine concentration to evaluate the mix effect and used chlorine consumption to compare the two equipments. Distribution reservoir experiments show that chemical induction unit can completely mix chlorine less than 6.2 seconds and water jet injector can not completely mix in 3 minutes. Mixing pool experiments show that chemical induction unit can save chlorine compared with water jet injector, and can save more if more chlorine is consumed.展开更多
The Shanxi Institute of Coal Chemistry,Chinese Academy of Sciences has designed and prepared a multiple confined-zone-based nickel hydrogenation catalyst by means of the atomic layer deposition(ALD)technology.In compa...The Shanxi Institute of Coal Chemistry,Chinese Academy of Sciences has designed and prepared a multiple confined-zone-based nickel hydrogenation catalyst by means of the atomic layer deposition(ALD)technology.In comparison with the non-confined-zone based catalyst,the multiple confined-zone-based nickel catalyst possesses an enhanced catalytic reactivity and catalytic stability for hydrogenation of cinnamaldehyde and nitrobenzene.展开更多
In this study, sixteen soil and vegetable samples from Tafila district were collected and analyzed from eight locations. Measurements of specific activity of natural gamma emitter radionuclides, 23SU and 235U, in thes...In this study, sixteen soil and vegetable samples from Tafila district were collected and analyzed from eight locations. Measurements of specific activity of natural gamma emitter radionuclides, 23SU and 235U, in these samples using gamma spectrometry, with the help of Genie 2000 software. Measurements were used to calculate the soil-vegetable transfer factor, and then the external radiation dose and internal radiation dose due to radioactivity of the ingested food. The specific activity of238U and 235U in soil were found to vary from (in Bq/kg): 26-575 and 1.4-35.5, respectively. The specific activity of 238U and 235U in vegetables were found to vary from (in Bq/kg): 0.019 to 0.632 and 0.0013-0.0375, respectively. The calculated transfer factor of Z3SU and Z35U range from 5.9 × 10^-4to 14.6 × 10^-4 for 238U and 4.9 × 10^-4 to 16.1 × 10^-4 for 235U. External absorbed dose rates were calculated to be in the range from 12.42 to 266.00 nGy/h. The annual effective dose was found to vary from 28.94 to 619.78 μSv/y. The annual internal effective dose due to 23SU and 23SU for fresh weights ofvegetablesl were found to vary from 0.9 × 10^-3 to 35.1 × 10^-3 μSv/y for 238U and 0.61 × 10^-4 to 17.62 × 10^-4 μSv/y for 235U.展开更多
基金ACKNOWLEDGMENTS This work was supported Science Foundation of China by the National Natural (No.91016002).
文摘According to the nonequilibrium solvation theory studies, a constrained equilibrium principle is introduced and applied to the derivations of the nonequilibrium solvation energy, and a reasonable expression of the spectral shift of the electronic absorption spectra is deduced. Furthermore, the lowest transition of p-nitroaniline (pNA) in water is investigated by time-dependent density functional theory method. In addition, the details of excited state properties of pNA are discussed. Using our novel expression of the spectral shift, the value of -0.99 eV is obtained for π→π^* transition in water, which is in good agreement with the available experimental result of -0.98 eV.
文摘The simple goal of this work is constructing a cheap, demonstrative model of a thermoacoustic refrigerator. To this end, the author succeeded in designing, building and testing the first pilot thermoacoustic refrigeration in Jordan basing on the theory of using sound waves as a coolant. The pilot thermoacoustic refrigerator was built from inexpensive and readily available parts in Mutah University, Jordan. The thermoacoustic refrigerator was operated for several hours. Consequentially, this experiment proved that thermoacoustic refrigerators were technically possible. Additionally, this experiment did yield some findings regarding the efficiency of thermoacoustic refrigeration. On other hand, solid flow CFD software was used to simulate the performance of thermoacoustic refrigerator especially the temperature and velocity inside the refrigerator. In general, very good agreement was deduced.
文摘The primary objective of this study is to assess the impact of a pharmacist-implemented protocol on number of post-operative alvimopan doses. The secondary objective of this study is to assess LOS (length of stay), in days, before and after protocol implementation. A retrospective chart review was conducted from October 2015 through March 2016 for all laparoscopic colorectal surgeries. Number of post-operative alvimopan doses received and LOS was recorded for each patient that received at least one dose of alvimopan. Comparative data, before protocol implementation, from November 2014 through June 2015 were analyzed against the study data. Number of post-operative alvimopan doses and LOS were recorded. The mean number of doses was 6.41 in the comparator group and 4.25 in the study group (probability size P 〈 0.001), which did meet statistical significance. Although the secondary objective was not statistically significant, LOS slightly decreased as the mean LOS was 5.01 days in the comparator group versus 4.49 days in the study group (P = 0.256). At the current price of $120 per capsule, close to $30,000 was saved during the study period, projecting an annual cost savings of approximately $68,000. Results from this study show that pharmacists can play a vital role in cost savings and ensuring appropriate use of certain high-risk medications, like alvimopan, without increasing overall length of stay.
文摘Rapid mixing and chlorine saving are two important problems that most drinking water industries are focus on, and this paper adopts chemical induction unit to compare with water jet injector to study what merits chemical induction unit has. The experiment chose coefficient of variability of chlorine concentration to evaluate the mix effect and used chlorine consumption to compare the two equipments. Distribution reservoir experiments show that chemical induction unit can completely mix chlorine less than 6.2 seconds and water jet injector can not completely mix in 3 minutes. Mixing pool experiments show that chemical induction unit can save chlorine compared with water jet injector, and can save more if more chlorine is consumed.
文摘The Shanxi Institute of Coal Chemistry,Chinese Academy of Sciences has designed and prepared a multiple confined-zone-based nickel hydrogenation catalyst by means of the atomic layer deposition(ALD)technology.In comparison with the non-confined-zone based catalyst,the multiple confined-zone-based nickel catalyst possesses an enhanced catalytic reactivity and catalytic stability for hydrogenation of cinnamaldehyde and nitrobenzene.
文摘In this study, sixteen soil and vegetable samples from Tafila district were collected and analyzed from eight locations. Measurements of specific activity of natural gamma emitter radionuclides, 23SU and 235U, in these samples using gamma spectrometry, with the help of Genie 2000 software. Measurements were used to calculate the soil-vegetable transfer factor, and then the external radiation dose and internal radiation dose due to radioactivity of the ingested food. The specific activity of238U and 235U in soil were found to vary from (in Bq/kg): 26-575 and 1.4-35.5, respectively. The specific activity of 238U and 235U in vegetables were found to vary from (in Bq/kg): 0.019 to 0.632 and 0.0013-0.0375, respectively. The calculated transfer factor of Z3SU and Z35U range from 5.9 × 10^-4to 14.6 × 10^-4 for 238U and 4.9 × 10^-4 to 16.1 × 10^-4 for 235U. External absorbed dose rates were calculated to be in the range from 12.42 to 266.00 nGy/h. The annual effective dose was found to vary from 28.94 to 619.78 μSv/y. The annual internal effective dose due to 23SU and 23SU for fresh weights ofvegetablesl were found to vary from 0.9 × 10^-3 to 35.1 × 10^-3 μSv/y for 238U and 0.61 × 10^-4 to 17.62 × 10^-4 μSv/y for 235U.