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Journal of Environmental Sciences 2006年第4期18卷 660-664页

作者： REN Guang-meng SUN De-zhi chung jong shik School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China Department of Chemical Engineering Pohang University of Science and Technology Pohang 790-784 South Korea

An investigation on the process of ozone combined with hydrogen peroxide and ultraviolet radiation has been carried out in order to establish the kinetics for photochemical oxidation of polyacrylamide （PAM） in aqueous solution. Effects of operating parameters, including initial PAM concentration, dosages of ozone and hydrogen peroxide, UV radiation and pH value on the photochemical oxidation of PAM, have been studied. There was an increase in photochemical oxidation rate of PAM with increasing of dosages of 03, H2O2 and ultraviolet radiation. Upon increasing of the initial PAM concentration, the photochemical oxidation rate of PAM decreased. Slight effect of pH value on the photochemical oxidation rate of PAM was observed in the experiments. The kinetics equation for the photochemical oxidation of PAM by the system has been established.

关键词： photochemical oxidation polyacrylamide kinetics ozone/hydrogen peroxide/ultraviolet radiation

Benefit in physical function and quality of life to nonsurgical treatment of varicose veins: Pilot study

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World Journal of Clinical Cases 2024年第3期12卷 517-524页

作者： Gwon-Min Kim BoKun Kim Minwoo Jang jong-Hwan Park Miju Bae chung Won Lee jong Won Kim Up Huh Medical Research Institute Pusan National University School of MedicineYangsan 50612South Korea Future Convergence Research Institute Changwon National UniversityChangwon 51140South Korea Department of Convergence Medical Science School of MedicinePusan National UniversityYangsan 50612South Korea Health Convergence Medicine Laboratory Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Thoracic and Cardiovascular Surgery Pusan National University School of MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea

BACKGROUND Studies on varicose veins have focused its effects on physical function;however,whether nonsurgical treatments alter muscle oxygenation or physical function remains ***,the differences in such functions between individuals with varicose veins and healthy individuals remain *** To investigate changes in physical function and the quality of life(QOL)following nonsurgical treatment of patients with varicose veins and determine the changes in their muscle oxygenation during *** We enrolled 37 participants(those with varicose veins,n=17;healthy individuals,n=20).We performed the following measurements pre-and post-nonsurgical treatment in the varicose vein patients and healthy individuals:Calf muscle oxygenation during the two-minute step test,open eyes one-leg stance,30 s sit-to-stand test,visual analog scale(VAS)for pain,Pittsburgh sleep quality index,physical activity assessment,and QOL *** Varicose veins patients and healthy individuals differ in most variables(physical function,sleep quality,and QOL).Varicose veins patients showed significant differences between pre-and post-nonsurgical treatment—results in the 30 sit-to-stand test[14.41(2.45)to 16.35(4.11),P=0.018],two-minute step test[162.29(25.98)to 170.65(23.80),P=0.037],VAS for pain[5.35(1.90)to 3.88(1.73),P=0.004],and QOL[39.34(19.98)to 26.69(17.02),P=0.005];however,no significant difference was observed for muscle *** Nonsurgical treatment improved lower extremity function and QOL in varicose veins patients,bringing their condition close to that of healthy *** studies should include patients with severe varicose veins requiring surgery to confirm our findings.

关键词： Varicose vein Nonsurgical treatment Physical function Quality of life Near infrared spectroscopy

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CO_2甲烷化催化剂与反应机理研究进展

天然气化工—C1化学与化工 2016年第6期41卷 98-104页

作者：赵云鹏荆涛田景芝郑钟植齐齐哈尔大学化学与化学工程学院黑龙江齐齐哈尔161006 浦项工科大学化学工程系

CO_2甲烷化是有效利用二氧化碳资源的途径之一,是减少CO_2的一种比较有效实际的方法,在环境保护方面显示出较大潜力。综述了Ni基催化剂、Ru基催化剂、Rh基催化剂等CO_2甲烷化催化剂及其催化性能,以及催化反应机理的研究进展,展望了CO_2... 详细信息

CO_2甲烷化是有效利用二氧化碳资源的途径之一,是减少CO_2的一种比较有效实际的方法,在环境保护方面显示出较大潜力。综述了Ni基催化剂、Ru基催化剂、Rh基催化剂等CO_2甲烷化催化剂及其催化性能,以及催化反应机理的研究进展,展望了CO_2甲烷化催化剂未来的发展方向。

关键词：二氧化碳甲烷化催化剂反应机理

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二氧化碳合成碳酸二甲酯催化剂的研究进展

现代化工 2011年第5期31卷 16-20页

作者：赵云鹏荆涛贾丽华孙德智郑钟植哈尔滨工业大学市政环境工程学院黑龙江哈尔滨150090 齐齐哈尔大学化学与化学工程学院黑龙江齐齐哈尔161006 北京林业大学环境科学与工程学院北京100083 浦项工科大学环境工程学院

碳酸二甲酯是一种用途广泛的环境友好有机合成中间体,利用CO2合成碳酸二甲酯能有效利用CO2资源,在环境保护和绿色合成化学方面具有重要的意义。综述了利用CO2合成碳酸二甲酯有机金属催化剂、氧化物催化剂、碱催化剂、负载型金属催化剂... 详细信息

碳酸二甲酯是一种用途广泛的环境友好有机合成中间体,利用CO2合成碳酸二甲酯能有效利用CO2资源,在环境保护和绿色合成化学方面具有重要的意义。综述了利用CO2合成碳酸二甲酯有机金属催化剂、氧化物催化剂、碱催化剂、负载型金属催化剂、醋酸盐催化剂及催化反应机理的研究进展,并展望了未来的发展方向。

关键词：二氧化碳碳酸二甲酯甲醇催化剂

CO_2加氢合成甲醇CuO-ZnO-TiO_2催化剂的制备与表征

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天然气化工—C1化学与化工 2011年第5期36卷 17-20页

作者：赵云鹏贾丽华孙德智郑钟植哈尔滨工业大学市政环境工程学院黑龙江哈尔滨150090 齐齐哈尔大学化学与化学工程学院黑龙江齐齐哈尔161006 北京林业大学环境科学与工程学院北京100083 浦项工科大学环境工程学院

采用添加表面活性剂并流浆态沉淀法制备了CuO-ZnO-TiO2催化剂,利用N2吸附脱附、XRD、SEM、EDS和H2-TPR等方法对催化剂进行了表征。结果表明,CuO-ZnO-TiO2催化剂为平均孔径3.7436nm的介孔材料,CuO在催化剂上的分散性较好,还原温度较低。... 详细信息

采用添加表面活性剂并流浆态沉淀法制备了CuO-ZnO-TiO2催化剂,利用N2吸附脱附、XRD、SEM、EDS和H2-TPR等方法对催化剂进行了表征。结果表明,CuO-ZnO-TiO2催化剂为平均孔径3.7436nm的介孔材料,CuO在催化剂上的分散性较好,还原温度较低。在反应温度230℃、反应压力2.0MPa、反应空速2100h-1、H2和CO2摩尔比为3:1的条件下,CO2加氢合成甲醇效果较好,甲醇选择性为19.68%,甲醇产率为2.26%。

关键词： CuO—ZnO-TiO2催化剂二氧化碳加氢甲醇合成并流浆态沉淀法表面活性剂

二氧化碳加氢直接合成二甲醚催化剂的研究进展

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应用化工 2017年第2期46卷 373-377页

作者：赵云鹏蔡宇翾郑永杰田景芝荆涛郑钟植齐齐哈尔大学化学与化学工程学院浦项工科大学化学工程系

综述了CuO-ZnO-Al2O3/HZSM-5、CuO-ZnO-ZrO2/HZSM-5、CuO-Fe2O3-ZrO2/HZSM-5等催化剂、催化剂制备方法以及添加不同助剂对CO2加氢直接合成二甲醚反应催化性能的影响,展望了CO2加氢直接合成二甲醚催化剂未来的发展方向。

关键词：二氧化碳二甲醚催化剂制备方法助剂

Increasing concentrations of dietary threonine,tryptophan,and glycine improve growth performance and intestinal health with decreasing stress responses in broiler chickens raised under multiple stress conditions

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Animal Nutrition 2024年第3期18卷 145-153页

作者： Hyun Woo Kim jong Hyuk Kim Gi Ppeum Han Dong Yong Kil Department of Animal Science and Technology Chung-Ang UniversityAnseong-siGyeonggi-do 17546Republic of Korea Department of Animal Science Chungbuk National UniversityCheongju 28644Republic of Korea

The current study aimed to compare the effects of increasing concentrations of dietary threonine(Thr),tryptophan(Trp),and glycine(Gly)on growth performance,stress biomarkers,and intestinal function in broiler chickens under multiple stress *** hundred sixty broiler chickens at 21 d old were randomly allotted to 5 treatments with 8 *** in a positive control(PC)treatment were raised under low stock density(16.9 birds/m2 per cage)with recommended environmental conditions,whereas birds in 4 treatments were subjected to multiple stress conditions:a cyclic heat stress of 30±0.3°C for 10 h and 23±0.2°C for 14 h per day with high stock density(25.3 birds/m2 per cage).A basal diet was assigned to both PC and negative control(NC)*** additional diets were individually formulated to contain double concentrations of digestible Thr,Trp,or Gly+Ser compared with their concentrations in the basal *** experiment lasted for 14 *** showed that NC treatment had less growth performance(P<0.001),jejunal goblet cell counts(P=0.018),and trans-epithelial electrical resistance(TEER;P<0.001),but greater(P=0.026)feather corticosterone(CORT)concentrations than PC *** treatment showed the least(P<0.001)feed conversion ratio(FCR)among treatments under multiple stress ***,Trp,and Gly treatments had less(P=0.026)feather CORT concentrations,but had greater(P<0.001)TEER than NC *** conclusion,increasing concentrations of dietary Thr,Trp,or Gly improve the growth performance and intestinal health in broiler chickens with decreasing stress response under multiple stress conditions.

关键词： Broiler chicken Glycine Multiple stress Threonine Tryptophan

甲烷与二氧化碳重整制合成气Ni与Co基催化剂的研究进展

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应用化工 2018年第10期47卷 2268-2273页

作者：赵云鹏刘晓婷蔡宇翾郑永杰田景芝郑钟植齐齐哈尔大学化学与化学工程学院黑龙江齐齐哈尔161006 浦项工科大学化学工程系

综述了助剂、载体与催化剂制备方法对Ni基催化剂、Co基催化剂、Ni-Co基催化剂上甲烷与二氧化碳重整制合成气催化性能的影响,以及甲烷与二氧化碳重整催化反应机理的研究,展望了催化剂未来的发展方向。

关键词：甲烷二氧化碳重整合成气催化剂

Effectiveness of sensory integration therapy in children,focusing on Korean children:A systematic review and meta-analysis

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World Journal of Clinical Cases 2024年第7期12卷 1260-1271页

作者： Seri Oh jong-Sik Jang A-Ra Jeon Geonwoo Kim Mihwa Kwon Bahoe Cho Narae Lee Department of Occupational Therapy Kangwon National University Graduate SchoolSamcheok 25949South Korea Department of Occupational Therapy Kangwon National UniversitySamcheok 25949South Korea Department of Occupational Therapy Ju-Ju Children Development CenterNonsansi 32985Chungcheongnam-doSouth Korea Department of Occupation Therapy Suwon Women’s UniversityGyeonggi-do 16632South Korea Hijam Center for Development of Children Ochang 28117South Korea Department of Occupational Therapy U1 UniversityChung-cheong bukdo 25949South Korea

BACKGROUND Sensory integration intervention is highly related to the child's effective interaction with the environment and the child's ***,various sensory integration interventions are being applied,but research methodological problems are arising due to unsystematic *** study aims to present the optimal intervention protocol by presenting scientific standards for sensory integration intervention through *** To prove the effectiveness of sensory integration therapy,examine the latest trend of sensory integration studies in Korea,and provide clinical evidence for sensory integration *** The database of Korean search engines,including RISS,KISS,and DBpia,was used to search for related literature published from 2001 to October *** keywords,“Children”,“Sensory integration”,“Integrated sensory”,“Sensorymotor”,and“Sensory stimulation”were used in this ***,a meta-analysis was conducted on 24 selected studiesRISS,KISS,and DBpia,was used to search for related literature published from 2001 to October *** keywords,“Children”,“Sensory integration”,“Integrated sensory”,“Sensorymotor”,and“Sensory stimulation”were used in this ***,a meta-analysis was conducted on 24 selected *** Sensory integration intervention has been proven effective in children with cerebral palsy,autism spectrum disorder,attention deficit/hyperactivity disorder,developmental disorder,and intellectual disability in relation to the diagnosis of *** sensory integration therapies,1:1 individual treatment with a therapist or a therapy session lasting for 40 min was most *** terms of dependent variables,sensory integration therapy effectively promoted social skills,adaptive behavior,sensory processing,and gross motor and fine motor *** The results of this study may be used as therapeutic evidence for sensory integration intervention in the clinical field of occupational therapy for

关键词： Children Meta-analysis Occupational therapy Sensory integration Sensory processing Social skills

Development and Experimental Evaluation of Strip Shape Prediction Model for Sendzimir Rolling Mills

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Journal of Iron and Steel Research International 2013年第12期20卷 25-32页

作者： SHIN jong-min HAN Seong-ik KIM jong-shik School of Mechanical Engineering Pusan National University School of Electrical Engineering Pusan National University

It is difficult to obtain the desired strip shape using Sendzimir rolling mills because small diameter work rolls can be easily deformed by the roiling force. To control the strip shape effectively, it is important to understand the relationship between the behavior of the shape actuator and the variation of the strip shape. A numerical model based on the contact element method was proposed for the prediction of strip shape. In this numerical model, the re- lationships between the actuating forces, the roll deflections, the thickness profiles of the entry and exit sides, and the strip shape were considered. The proposed numerical model for strip shape prediction was evaluated by computer simulation and experiment with respect to various AS-U roll and first intermediate roll positions.

关键词： Sendzimir rollingmill double acting AS-U roll strip shape prediction model contact element method