AIM:To find out whether a newly designed big cup nitinol stent is suitable for treatment of patients with gastric outlet obstruction resulting from gastric cancer.METHODS:The new stent is composed of a proximal big cu...AIM:To find out whether a newly designed big cup nitinol stent is suitable for treatment of patients with gastric outlet obstruction resulting from gastric cancer.METHODS:The new stent is composed of a proximal big cup segment(20 mm in length and 48-55 mm in diameter),a middle part(60 mm in length and 20 mm in diameter)covered by a polyethylene membrane and a distal sphericity(20 mm in length and 28 mm in diameter).Half of the proximal big cup segment is also covered by a polyethlene membrane,which is adjacent to the middle part of the stent.The stent is preloaded in a 6.0-mm-diameter introducer system.Thirteen patients with gastric outlet obstruction resulting from gastric cancer received the new stents under endoscopic and fluoroscopic guidance.RESULTS:Technical success was achieved in 12 of 13(92.3%)patients.Among the 12 patients in whom endoscopic stent was placed successfully,the clinical success rate was 91.7%during a follow-up of average 6.5 mo.During the first month follow-up,the migration rate was 0%,recurrent obstruction 0%and gastric bleeding 8.3%.During the follow-up between 2-12 mo,no migration,recurrent obstruction and gastric bleeding occurred.CONCLUSION:The proximal big cup segment seems to be effective and promising for technical efficacy,clinical outcome,and preventing migration and tumor ingrowth and increasing the emptying rate of sinus ventriculi.展开更多
Abthors introduce the notation of generalized geometric constructions in Rm generated by a directed graph G and by a sequence of similarity ratios which are labelled with the edges of this graph. In this paper, it is ...Abthors introduce the notation of generalized geometric constructions in Rm generated by a directed graph G and by a sequence of similarity ratios which are labelled with the edges of this graph. In this paper, it is obtained the Hausdorff dimension and measure of this construction object for some cases.展开更多
Journal of Iron cnd Steel Research International,sponsored by China Iron and Steel Research Institute Group,is an academic joumal which provides an international medium for publication of original research articles,re...Journal of Iron cnd Steel Research International,sponsored by China Iron and Steel Research Institute Group,is an academic joumal which provides an international medium for publication of original research articles,reviews and letters in the fields of metallurgy and metallic materials.It has been covered by Science Citation Index(SCI)and Engineering Index(EI)since 1996 and 2016,respectively.展开更多
Human acellular nerve allografts have a wide range of donor origin and can effectively avoid nerve injury in the donor area. Very little is known about one-stage reconstruction of digital nerve defects. The present st...Human acellular nerve allografts have a wide range of donor origin and can effectively avoid nerve injury in the donor area. Very little is known about one-stage reconstruction of digital nerve defects. The present study observed the feasibility and effectiveness of human acellular nerve allograft in the reconstruction of 〈 5-cm digital nerve defects within 6 hours after injury. A total of 15 cases of nerve injury, combined with nerve defects in 18 digits from the Department of Emergency were enrolled in this study. After dehridement, digital nerves were reconstructed using human acellular nerve allografts. The patients were followed up for 6-24 months after reconstruction. Mackinnon-Dellon static two-point discrimination results showed excellent and good rates of 89%. Semmes-Weinstein monofilament test demonstrated that light touch was normal, with an obvious improvement rate of 78%. These findings confirmed that human acellular nerve allograft for one-stage reconstruction of digital nerve defect after hand injury is feasible, which provides a novel trend for peripheral nerve reconstruction.展开更多
Zouxian Thermal Power Plant in Shandong Province isthe first one in China with four 300 MW Indigenousturbine generator units.The manufacturers and types of the mainequipment are as follows:Boilers(Dongfang Boiler Work...Zouxian Thermal Power Plant in Shandong Province isthe first one in China with four 300 MW Indigenousturbine generator units.The manufacturers and types of the mainequipment are as follows:Boilers(Dongfang Boiler Works):coal-fired natural circulationboilers,type DG-1000/170-1.Turbines(Shanghai Turbine Works):condensing turbines,type N300-165/550/550.Generators(Shanghai Electric Machinery Mfg.Works):typeQFS-300-2.展开更多
They arrive in their millions like a dangerous cloud-darkening the sky and bringing fear,anger and despair to East Africa.Voracious desert locusts have,in the past several weeks,gone on an eating rampage in countries ...They arrive in their millions like a dangerous cloud-darkening the sky and bringing fear,anger and despair to East Africa.Voracious desert locusts have,in the past several weeks,gone on an eating rampage in countries in the region,including Somalia,Kenya,Ethiopia,Djibouti,Eritrea,Tanzania,South Sudan,the Democratic Republic of the Congo and Uganda.展开更多
The 2020 TKK Science Award in Earth Sciences was conferred on CAS Member Prof.ZHU Rixiang,a researcher working at the CAS Institute of Geology and Geophysics,for his outstanding work on the destruction of the North Ch...The 2020 TKK Science Award in Earth Sciences was conferred on CAS Member Prof.ZHU Rixiang,a researcher working at the CAS Institute of Geology and Geophysics,for his outstanding work on the destruction of the North China Craton (NCC),a complicated issue that has been puzzling geologists for a long time.展开更多
The article combines institutional change and social participation of the subjects. By investigating the expanding of community subject and gradually cultivating their ability to participate,we can test the achievemen...The article combines institutional change and social participation of the subjects. By investigating the expanding of community subject and gradually cultivating their ability to participate,we can test the achievements of community development in our country,and lay a foundation for reaching the social development goals.展开更多
The first part of this book follows the thread of ten major events involving the dispersal of cultural relics,unveiling the complex truths behind the loss of national treasures.The latter part meticulously selects 108...The first part of this book follows the thread of ten major events involving the dispersal of cultural relics,unveiling the complex truths behind the loss of national treasures.The latter part meticulously selects 108 precious relics overseas,ranging from the Neolithic era to the Qing Dynasty,covering Dunhuang relics,calligraphy,ceramics,bronzes,jades,lacquerware,sculptures,and oracle bone scriptures,etc.It interprets the historical background,craftsmanship,color details,aesthetic design,and symbolic meanings,encompassing exquisite collections from dozens of institutions abroad,offering a glimpse into the rare treasures of Chinese heritage.展开更多
Destruction resistance such as start-up wear resistance characteristics of vitamin E(dl-α-tocopherol)blended ultrahigh molecular weight polyethylene(UHMWPE)were evaluated using the destruction energy index(DEI).The D...Destruction resistance such as start-up wear resistance characteristics of vitamin E(dl-α-tocopherol)blended ultrahigh molecular weight polyethylene(UHMWPE)were evaluated using the destruction energy index(DEI).The DEI is used to evaluate wear-like destruction,by minimising the effects of viscosity at the sliding interface,and is estimated using newly designed friction testers.In this experiment,silicone oils of different viscosities were used to determine micro displacement up to a start-up point,and the DEI of the UHMWPE was changed from 17.48 to 1.84μJ by adding vitamin E.The results suggest that the blending with vitamin E reduces destruction of UHMWPE at start-up friction in silicone oils.展开更多
文摘AIM:To find out whether a newly designed big cup nitinol stent is suitable for treatment of patients with gastric outlet obstruction resulting from gastric cancer.METHODS:The new stent is composed of a proximal big cup segment(20 mm in length and 48-55 mm in diameter),a middle part(60 mm in length and 20 mm in diameter)covered by a polyethylene membrane and a distal sphericity(20 mm in length and 28 mm in diameter).Half of the proximal big cup segment is also covered by a polyethlene membrane,which is adjacent to the middle part of the stent.The stent is preloaded in a 6.0-mm-diameter introducer system.Thirteen patients with gastric outlet obstruction resulting from gastric cancer received the new stents under endoscopic and fluoroscopic guidance.RESULTS:Technical success was achieved in 12 of 13(92.3%)patients.Among the 12 patients in whom endoscopic stent was placed successfully,the clinical success rate was 91.7%during a follow-up of average 6.5 mo.During the first month follow-up,the migration rate was 0%,recurrent obstruction 0%and gastric bleeding 8.3%.During the follow-up between 2-12 mo,no migration,recurrent obstruction and gastric bleeding occurred.CONCLUSION:The proximal big cup segment seems to be effective and promising for technical efficacy,clinical outcome,and preventing migration and tumor ingrowth and increasing the emptying rate of sinus ventriculi.
文摘Abthors introduce the notation of generalized geometric constructions in Rm generated by a directed graph G and by a sequence of similarity ratios which are labelled with the edges of this graph. In this paper, it is obtained the Hausdorff dimension and measure of this construction object for some cases.
文摘Journal of Iron cnd Steel Research International,sponsored by China Iron and Steel Research Institute Group,is an academic joumal which provides an international medium for publication of original research articles,reviews and letters in the fields of metallurgy and metallic materials.It has been covered by Science Citation Index(SCI)and Engineering Index(EI)since 1996 and 2016,respectively.
基金supported by grants from the National Program on Key Basic Research Project of China(973 Program),No.2014CB542200
文摘Human acellular nerve allografts have a wide range of donor origin and can effectively avoid nerve injury in the donor area. Very little is known about one-stage reconstruction of digital nerve defects. The present study observed the feasibility and effectiveness of human acellular nerve allograft in the reconstruction of 〈 5-cm digital nerve defects within 6 hours after injury. A total of 15 cases of nerve injury, combined with nerve defects in 18 digits from the Department of Emergency were enrolled in this study. After dehridement, digital nerves were reconstructed using human acellular nerve allografts. The patients were followed up for 6-24 months after reconstruction. Mackinnon-Dellon static two-point discrimination results showed excellent and good rates of 89%. Semmes-Weinstein monofilament test demonstrated that light touch was normal, with an obvious improvement rate of 78%. These findings confirmed that human acellular nerve allograft for one-stage reconstruction of digital nerve defect after hand injury is feasible, which provides a novel trend for peripheral nerve reconstruction.
文摘Zouxian Thermal Power Plant in Shandong Province isthe first one in China with four 300 MW Indigenousturbine generator units.The manufacturers and types of the mainequipment are as follows:Boilers(Dongfang Boiler Works):coal-fired natural circulationboilers,type DG-1000/170-1.Turbines(Shanghai Turbine Works):condensing turbines,type N300-165/550/550.Generators(Shanghai Electric Machinery Mfg.Works):typeQFS-300-2.
文摘They arrive in their millions like a dangerous cloud-darkening the sky and bringing fear,anger and despair to East Africa.Voracious desert locusts have,in the past several weeks,gone on an eating rampage in countries in the region,including Somalia,Kenya,Ethiopia,Djibouti,Eritrea,Tanzania,South Sudan,the Democratic Republic of the Congo and Uganda.
文摘The 2020 TKK Science Award in Earth Sciences was conferred on CAS Member Prof.ZHU Rixiang,a researcher working at the CAS Institute of Geology and Geophysics,for his outstanding work on the destruction of the North China Craton (NCC),a complicated issue that has been puzzling geologists for a long time.
基金the staged achievement of the MOE(Ministry of Education in China)Project of Humanities and Social Sciences(Project No.11YJC 840052)
文摘The article combines institutional change and social participation of the subjects. By investigating the expanding of community subject and gradually cultivating their ability to participate,we can test the achievements of community development in our country,and lay a foundation for reaching the social development goals.
文摘The first part of this book follows the thread of ten major events involving the dispersal of cultural relics,unveiling the complex truths behind the loss of national treasures.The latter part meticulously selects 108 precious relics overseas,ranging from the Neolithic era to the Qing Dynasty,covering Dunhuang relics,calligraphy,ceramics,bronzes,jades,lacquerware,sculptures,and oracle bone scriptures,etc.It interprets the historical background,craftsmanship,color details,aesthetic design,and symbolic meanings,encompassing exquisite collections from dozens of institutions abroad,offering a glimpse into the rare treasures of Chinese heritage.
文摘Destruction resistance such as start-up wear resistance characteristics of vitamin E(dl-α-tocopherol)blended ultrahigh molecular weight polyethylene(UHMWPE)were evaluated using the destruction energy index(DEI).The DEI is used to evaluate wear-like destruction,by minimising the effects of viscosity at the sliding interface,and is estimated using newly designed friction testers.In this experiment,silicone oils of different viscosities were used to determine micro displacement up to a start-up point,and the DEI of the UHMWPE was changed from 17.48 to 1.84μJ by adding vitamin E.The results suggest that the blending with vitamin E reduces destruction of UHMWPE at start-up friction in silicone oils.
