A series of perovskite type oxides and supported Ag catalysts were prepared, and characterized by X ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS). The catalytic activities of the catalyst...A series of perovskite type oxides and supported Ag catalysts were prepared, and characterized by X ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS). The catalytic activities of the catalysts as well as influencing factors on catalytic activity have been investigated for the simultaneous removal of NOx and diesel soot particulate. An increase in catalytic activity for the selective reduction of NOx was observed with Ag addition in these perovskite oxides, especially with 5% Ag loading. This catalyst could be a promising candidate of catalytic material for the simultaneous elimination of NOx and diesel soot.展开更多
The jacket structure has become more popular as the offshore wind-turbine support structure. K-type and inverted-K-type jacket support structures have superior potential due to their fewer joints and lower cost of man...The jacket structure has become more popular as the offshore wind-turbine support structure. K-type and inverted-K-type jacket support structures have superior potential due to their fewer joints and lower cost of manufacture and installation. A numerical study was presented on the dynamic responses of K-type and inverted-K-type jacket support structures subjected to different kinds of dynamic load. The results show that the inverted-K-type jacket structure has higher natural frequencies than the K-type. The wave force spectrum response shows that the maximum displacement of the K-type jacket structure is larger than that of the inverted-K-type. The time-history responses under wind and wave-current load indicate that the inverted-K-type jacket structure shows smaller displacement and stress compared with the K-type, and presents different stress concentration phenomena. The dynamic responses reveal that the inverted-K-type of jacket support structure has greater stiffness and superior mechanical properties, and thus is more applicable in the offshore area with relatively deep water.展开更多
Methyl-（γ-chloropropyl）dichlorosilane was synthesized under the catalysis of a silicasupported Karstedt-type catalyst. By orthogonal experimental design method, the optimum reaction parameters such as reactants rat...Methyl-（γ-chloropropyl）dichlorosilane was synthesized under the catalysis of a silicasupported Karstedt-type catalyst. By orthogonal experimental design method, the optimum reaction parameters such as reactants ratio, reaction temperature and time, and the dosage of catalyst, were determined. At the optimum reaction condition the product yield reached 78.42%, which is higher than that reported in the literatures.展开更多
Under deep and complex geological conditions,severe deformation occurs at intersection points of Y-type roadways with large cross sections during engineering projects in coal mines,especially at junction arches.Based ...Under deep and complex geological conditions,severe deformation occurs at intersection points of Y-type roadways with large cross sections during engineering projects in coal mines,especially at junction arches.Based on in-situ investigations and theoretical studies,we have summarized typical forms of destruction and identified high stress and unrestricted support at both sides of junction arch as its main causes.In this study,we also presented double-directional control bolt support technology for a large Y-type span intersection,applied to deep intersection engineering in the Jiahe Coal Mine,which has proved effective.展开更多
Objective: This study aims to explore the effect of peer support in improving self-efficacy of rural patients with type 2 diabetes and the application of drugs to reduce the pain from diabetes. Methods: Patients with ...Objective: This study aims to explore the effect of peer support in improving self-efficacy of rural patients with type 2 diabetes and the application of drugs to reduce the pain from diabetes. Methods: Patients with type 2 diabetes in the rural area were selected and they were divided into the peer group and control group with voluntary. The patients in peer support group applied six kinds of activity patterns, while the control group was carried out with routine activities. Results: Comparison indexes for the two groups are mastering degree of related knowledge to diabetes, control compliance rate of indicators related to diabetes, and management of diabetes self-efficacy. Comparing with the control group, indexes in peer support group were significantly increased (P < 0.01). Meanwhile, in the table of diabetes distress, 17 items have been improved and the occurrence rate of painful diabetic decreased significantly (P < 0.01). Conclusion: Peer support can improve the rural patients’ self-efficacy of type 2 diabetes and decrease patients’ pain from type 2 diabetes mellitus.展开更多
<strong>Background:</strong> Diabetes mellitus (DM) is one of the most common non-communicable diseases and among the leading causes of disability, morbidity and mortality globally. The study assessed adhe...<strong>Background:</strong> Diabetes mellitus (DM) is one of the most common non-communicable diseases and among the leading causes of disability, morbidity and mortality globally. The study assessed adherence to treatment by type 2 DM patients aged 20 years and above at Monze Mission Hospital in Monze district, Zambia. Research questions: 1) What is the level of adherence to treatment by type 2 DM patients receiving care from Monze Mission Hospital? 2) What factors influence adherence to treatment by type 2 DM patients? <strong>Methods:</strong> The study was conducted in 2017. It was a cross-sectional design. Simple random sampling method was used to select respondents and data was collected using a structured interview schedule. Data was entered and analyzed using the modified self-reported Morisky Medication Adherence Scale with six scores, modified self-care management questionnaire and IBM<span style="white-space:nowrap;"><sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">©</span></span></sup> </span>Statistical Package for Social Sciences. Chi-Square was used to test associations between variables and binary logistic regression was used for multivariate analysis. The Morisky Medication Adherence scale was interpreted as follows: patients who scored between 4 - 6 points on knowledge had high knowledge while those who scored between 1 - 3 points had low knowledge about the disease. <strong>Results: </strong>The sample size of the study was 138 respondents. The study showed, only 44.2% of respondents had good adherence to treatment as they scored above 4 using the Morisky Medication Adherence Scale. Majority of the patients (55.6%) had knowledge about treatment despite 65.2% of respondents reported distance and financial challenges as hindrances to adherence. The study revealed a statistical association between adherence and knowledge of type 2 DM treatment. <strong>Conclusion:</strong> The study showed that poor adherence to treatment reduced as knowledge about DM increased. There is need to consider educational programs to strengthen adherence to dietary advice, regular exercise and follow up, to achieve normal glycemic levels.展开更多
The regularities of the solid solutions between the scheelite-type compounds and rare earth molybdates or tungstates were investigated by the atomic parameter-support vector machine method and the intelligent database...The regularities of the solid solutions between the scheelite-type compounds and rare earth molybdates or tungstates were investigated by the atomic parameter-support vector machine method and the intelligent database of phase diagrams of molten salt systems. The crystal structure of scheelite-type compounds having M^1M^′Ⅲ （XO4）2（X = Mo, W） as common formula and the formability of the continuous solid solution between these compounds and rare earth molybdates or tungstates were also investigated. Besides, the cell constants of these compounds can be calculated by some semi-empirical equations. Based on the obtained relationships, the results of computerized prediction of the solid solubility of T1Pr （MoO4）2-Pr2 （MoO4）3 system have good agreement with experimental results.展开更多
A control problem containing support functions in the integrand of the objective of the functional as well as in the inequality constraint function is considered. For this problem, Fritz John and Karush-Kuhn-Tucker ty...A control problem containing support functions in the integrand of the objective of the functional as well as in the inequality constraint function is considered. For this problem, Fritz John and Karush-Kuhn-Tucker type necessary optimality conditions are derived. Using Karush-Kuhn-Tucker type optimality conditions, Wolfe type dual is formulated and usual duality theorems are established under generalized convexity conditions. Special cases are generated. It is also shown that our duality results have linkage with those of nonlinear programming problems involving support functions.展开更多
AIM: To investigate whether assigning young, healthy and motivated lay volunteer partners("buddies") to adolescents with type 2 diabetes improves hemoglobin A1c(HbA 1c). METHODS: Adolescents with type 2 diab...AIM: To investigate whether assigning young, healthy and motivated lay volunteer partners("buddies") to adolescents with type 2 diabetes improves hemoglobin A1c(HbA 1c). METHODS: Adolescents with type 2 diabetes were randomized to partnering with a "buddy" or to conventional treatment. During the initial screening visit, which coincided with a routine outpatient diabetes clinic visit, patients with type 2 diabetes underwent a physical examination, detailed medical history, laboratory measurement of HbA 1c, and completed two questionnaires(Pediatric Quality of Life Inventory and Children's Depression Inventory) to assess their overall quality of life and the presence of depressive symptoms. Patients were then randomized to the intervention(the buddy system) or conventional treatment(standard care). All patients were scheduled to return for followup at 3- and 6-mo after their initial visit. Hb A1 c was determined at all visits(i.e., at screening and at the 3- and 6-mo follow-up visits) and quality of life and depressive symptoms were evaluated at the screening visit and were reassessed at the 6-mo visit. RESULTS: Ten adolescents, recruited from a pool of approximately 200 adolescents, enrolled over a twoyear time period, leading to premature termination of the study. In contrast, we easily recruited motivated lay volunteers. We found no change in HbA 1c from the initial to the 6-mo visit in either group, yet our small sample size limited systematic assessment of this outcome. Participants repeatedly missed clinic appointments, failed to conduct self-glucose-monitoring and rarely brought their glucometers to clinic visits. Total quality of life scores(72.6 ± 6.06) at screening were similar to previously reported scores in adolescents with type 2 diabetes(75.7 ± 15.0) and lower than scores reported in normal-weight(81.2 ± 0.9), overweight(83.5 ± 1.8), and obese youths without diabetes(78.5 ± 1.8) or in adolescents with type 1 diabetes(80.5 ± 13.1). Among adolescents who returned for their 6-mo visit, there were no differences in total quality of life scores(70.2 ± 9.18) between screening and follow-up.CONCLUSION: Our approach, effective in adults with type 2 diabetes, was unsuccessful among adolescents and emphasizes the need for innovative strategies for diabetes treatment in adolescent patients.展开更多
文摘A series of perovskite type oxides and supported Ag catalysts were prepared, and characterized by X ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS). The catalytic activities of the catalysts as well as influencing factors on catalytic activity have been investigated for the simultaneous removal of NOx and diesel soot particulate. An increase in catalytic activity for the selective reduction of NOx was observed with Ag addition in these perovskite oxides, especially with 5% Ag loading. This catalyst could be a promising candidate of catalytic material for the simultaneous elimination of NOx and diesel soot.
基金Project(51509081)supported by the National Natural Science Foundation of ChinaProject(B12032)supported by the “111 Project” of ChinaProjects(BK20150037,BK20150811)supported by the Natural Science Foundation of Jiangsu Province,China
文摘The jacket structure has become more popular as the offshore wind-turbine support structure. K-type and inverted-K-type jacket support structures have superior potential due to their fewer joints and lower cost of manufacture and installation. A numerical study was presented on the dynamic responses of K-type and inverted-K-type jacket support structures subjected to different kinds of dynamic load. The results show that the inverted-K-type jacket structure has higher natural frequencies than the K-type. The wave force spectrum response shows that the maximum displacement of the K-type jacket structure is larger than that of the inverted-K-type. The time-history responses under wind and wave-current load indicate that the inverted-K-type jacket structure shows smaller displacement and stress compared with the K-type, and presents different stress concentration phenomena. The dynamic responses reveal that the inverted-K-type of jacket support structure has greater stiffness and superior mechanical properties, and thus is more applicable in the offshore area with relatively deep water.
基金support from the National Natural Science Foundation of China(No.50473036)
文摘Methyl-（γ-chloropropyl）dichlorosilane was synthesized under the catalysis of a silicasupported Karstedt-type catalyst. By orthogonal experimental design method, the optimum reaction parameters such as reactants ratio, reaction temperature and time, and the dosage of catalyst, were determined. At the optimum reaction condition the product yield reached 78.42%, which is higher than that reported in the literatures.
基金supported by the National Basic Research Program of China (No.2006CB202200)the Major Program of the National Natural Science Foundation of China (No.50490270)the Innovative Team Development Project of the Ministry of Education of China (No.IRT0656)
文摘Under deep and complex geological conditions,severe deformation occurs at intersection points of Y-type roadways with large cross sections during engineering projects in coal mines,especially at junction arches.Based on in-situ investigations and theoretical studies,we have summarized typical forms of destruction and identified high stress and unrestricted support at both sides of junction arch as its main causes.In this study,we also presented double-directional control bolt support technology for a large Y-type span intersection,applied to deep intersection engineering in the Jiahe Coal Mine,which has proved effective.
文摘Objective: This study aims to explore the effect of peer support in improving self-efficacy of rural patients with type 2 diabetes and the application of drugs to reduce the pain from diabetes. Methods: Patients with type 2 diabetes in the rural area were selected and they were divided into the peer group and control group with voluntary. The patients in peer support group applied six kinds of activity patterns, while the control group was carried out with routine activities. Results: Comparison indexes for the two groups are mastering degree of related knowledge to diabetes, control compliance rate of indicators related to diabetes, and management of diabetes self-efficacy. Comparing with the control group, indexes in peer support group were significantly increased (P < 0.01). Meanwhile, in the table of diabetes distress, 17 items have been improved and the occurrence rate of painful diabetic decreased significantly (P < 0.01). Conclusion: Peer support can improve the rural patients’ self-efficacy of type 2 diabetes and decrease patients’ pain from type 2 diabetes mellitus.
文摘<strong>Background:</strong> Diabetes mellitus (DM) is one of the most common non-communicable diseases and among the leading causes of disability, morbidity and mortality globally. The study assessed adherence to treatment by type 2 DM patients aged 20 years and above at Monze Mission Hospital in Monze district, Zambia. Research questions: 1) What is the level of adherence to treatment by type 2 DM patients receiving care from Monze Mission Hospital? 2) What factors influence adherence to treatment by type 2 DM patients? <strong>Methods:</strong> The study was conducted in 2017. It was a cross-sectional design. Simple random sampling method was used to select respondents and data was collected using a structured interview schedule. Data was entered and analyzed using the modified self-reported Morisky Medication Adherence Scale with six scores, modified self-care management questionnaire and IBM<span style="white-space:nowrap;"><sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">©</span></span></sup> </span>Statistical Package for Social Sciences. Chi-Square was used to test associations between variables and binary logistic regression was used for multivariate analysis. The Morisky Medication Adherence scale was interpreted as follows: patients who scored between 4 - 6 points on knowledge had high knowledge while those who scored between 1 - 3 points had low knowledge about the disease. <strong>Results: </strong>The sample size of the study was 138 respondents. The study showed, only 44.2% of respondents had good adherence to treatment as they scored above 4 using the Morisky Medication Adherence Scale. Majority of the patients (55.6%) had knowledge about treatment despite 65.2% of respondents reported distance and financial challenges as hindrances to adherence. The study revealed a statistical association between adherence and knowledge of type 2 DM treatment. <strong>Conclusion:</strong> The study showed that poor adherence to treatment reduced as knowledge about DM increased. There is need to consider educational programs to strengthen adherence to dietary advice, regular exercise and follow up, to achieve normal glycemic levels.
文摘The regularities of the solid solutions between the scheelite-type compounds and rare earth molybdates or tungstates were investigated by the atomic parameter-support vector machine method and the intelligent database of phase diagrams of molten salt systems. The crystal structure of scheelite-type compounds having M^1M^′Ⅲ （XO4）2（X = Mo, W） as common formula and the formability of the continuous solid solution between these compounds and rare earth molybdates or tungstates were also investigated. Besides, the cell constants of these compounds can be calculated by some semi-empirical equations. Based on the obtained relationships, the results of computerized prediction of the solid solubility of T1Pr （MoO4）2-Pr2 （MoO4）3 system have good agreement with experimental results.
文摘A control problem containing support functions in the integrand of the objective of the functional as well as in the inequality constraint function is considered. For this problem, Fritz John and Karush-Kuhn-Tucker type necessary optimality conditions are derived. Using Karush-Kuhn-Tucker type optimality conditions, Wolfe type dual is formulated and usual duality theorems are established under generalized convexity conditions. Special cases are generated. It is also shown that our duality results have linkage with those of nonlinear programming problems involving support functions.
基金Supported by The Intramural Research Program of the National Institutes of Healththe National Institute of Diabetes,Digestive+2 种基金Kidney Diseases in collaboration with the Division of EndocrinologyDiabetes at the Children’s National Medical Center(Washington,DC)provided by the Endocrine Fellows Foundation Marilyn Fishman Grant for Diabetes Research
文摘AIM: To investigate whether assigning young, healthy and motivated lay volunteer partners("buddies") to adolescents with type 2 diabetes improves hemoglobin A1c(HbA 1c). METHODS: Adolescents with type 2 diabetes were randomized to partnering with a "buddy" or to conventional treatment. During the initial screening visit, which coincided with a routine outpatient diabetes clinic visit, patients with type 2 diabetes underwent a physical examination, detailed medical history, laboratory measurement of HbA 1c, and completed two questionnaires(Pediatric Quality of Life Inventory and Children's Depression Inventory) to assess their overall quality of life and the presence of depressive symptoms. Patients were then randomized to the intervention(the buddy system) or conventional treatment(standard care). All patients were scheduled to return for followup at 3- and 6-mo after their initial visit. Hb A1 c was determined at all visits(i.e., at screening and at the 3- and 6-mo follow-up visits) and quality of life and depressive symptoms were evaluated at the screening visit and were reassessed at the 6-mo visit. RESULTS: Ten adolescents, recruited from a pool of approximately 200 adolescents, enrolled over a twoyear time period, leading to premature termination of the study. In contrast, we easily recruited motivated lay volunteers. We found no change in HbA 1c from the initial to the 6-mo visit in either group, yet our small sample size limited systematic assessment of this outcome. Participants repeatedly missed clinic appointments, failed to conduct self-glucose-monitoring and rarely brought their glucometers to clinic visits. Total quality of life scores(72.6 ± 6.06) at screening were similar to previously reported scores in adolescents with type 2 diabetes(75.7 ± 15.0) and lower than scores reported in normal-weight(81.2 ± 0.9), overweight(83.5 ± 1.8), and obese youths without diabetes(78.5 ± 1.8) or in adolescents with type 1 diabetes(80.5 ± 13.1). Among adolescents who returned for their 6-mo visit, there were no differences in total quality of life scores(70.2 ± 9.18) between screening and follow-up.CONCLUSION: Our approach, effective in adults with type 2 diabetes, was unsuccessful among adolescents and emphasizes the need for innovative strategies for diabetes treatment in adolescent patients.
