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Improved direct current electrical properties of XLPE modified by graftable antioxidant and crosslinking coagent at a wide temperature range

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High Voltage 2024年第1期9卷 94-104页

作者： Xu Yang Hong Zhao Chengcheng Zhang Chunyang Li Xindong Zhao Jiaming Yang Xuan Wang Key Laboratory of Engineering Dielectrics and Its Application Harbin University of Science and TechnologyHarbinChina

To enhance the DC electrical performance of cross-linked polyethylene(XLPE),the graftable antioxidant methacrylic acid 2-hydroxy-3-(4-anilinoanilino)propyl ester(GA),which contains carbonyl and amino groups,and the crosslinking coagent trimethylolpropane trimethacrylate(TMPTMA),which contains carbonyl groups,are individually or co-grafted onto XLPE.The slightly higher deep trap density introduced by higher grafting concentration of TMPTMA results in more significant suppression effect of conductance current and enhanced breakdown strength at a lower temperature,while the suppression effect for the conductance current at 90°C becomes weakened due to limited trap energy.Meanwhile,the deeper energy level introduced by GA suppresses the conductance current and improves the electrical strength of XLPE at 90°C more significantly.By co-grafting,the conductance current of XLPE in a wide range temperature can be significantly reduced,especially for the temperature dependence of conductance current,which is beneficial to suppress the field strength reversal.The results of thermally stimulated current and molecular simulation show that the polar groups of two monomers introduce deep charge traps in XLPE.The co-grafting system ensures the rationality of the crosslinking reaction kinetics and does not affect the cable manufacturing.

关键词： crosslinking electrical grafting

What factors control plant height?

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Journal of Integrative Agriculture 2024年第6期23卷 1803-1824页

作者： Li Miao Xiangyu Wang Chao Yu Chengyang Ye Yanyan Yan Huasen Wang College of Horticulture Qingdao Agricultural UniversityQingdao 266109China Key Laboratory for Quality and Safety Control of Subtropical Fruits and Vegetables College of Horticulture ScienceZhejiang Agriculture and Forestry UniversityHangzhou 311300China

Plant height(PH)is one of the most important components of the plant ideotype,and it affects plant biomass,yield,lodging resistance,and the ability to use mechanized harvesting.Since many complex pathways controlling plant growth and development remain poorly understood,we are still unable to obtain the most ideal plants solely through breeding efforts.PH can be influenced by genotype,plant hormonal regulation,environmental conditions,and interactions with other plants.Here,we comprehensively review the factors influencing PH,including the regulation of PH-related developmental processes,the genetics and QTLs contributing to PH,and the hormone-regulated molecular mechanisms for PH.Additionally,the symbiotic influence of grafting on PH is discussed,focusing on the molecular regulation of gene expression and genetics.Finally,we propose strategies for applying recent findings to breeding for better PH,highlight some knowledge gaps,and suggest potential directions for future studies.

关键词： dwarfism plant hormones interaction grafting QTLs phenotyping

Coupling Agent grafting Assisted Synthesis of C3N4-ZrO_(2) Heterojunction Composites with Enhanced Photocatalytic Performance

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China Petroleum Processing & Petrochemical Technology 2023年第1期25卷 123-132页

作者： Liu Yanxiu Luo Jing Li Jinqi Wang Xueqin Song Hua Provincial Key Laboratory of Oil&Gas Chemical Technology College of Chemistry&Chemical EngineeringNortheast Petroleum UniversityDaqingHeilongjiang 163318China North China Branch of SINOPEC Sales Co. LtdTianjin 300450China

Heterojunction composites were prepared by silane coupling agent grafting from synthesized graphitic carbon nitride(g-C_(3)N_(4))and commercially available zirconia(ZrO_(2)).The samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),Fourier transform infrared(FT-IR)spectroscopy,UV-vis diffuse reflectance spectroscopy(DRS),photoluminescence(PL)spectroscopy,and electrochemical impedance spectroscopy(EIS).The photocatalytic activity of the composites was evaluated by the degradation of methylene blue(MB)under visible light irradiation.The results showed that heterojunction composites of g-C_(3)N_(4) and ZrO_(2) could be successfully prepared by coupling agent grafting.The optimal mass ratio of g-C_(3)N_(4) and ZrO_(2) was 2:1,with an activity that was 3.8 times higher than g-C_(3)N_(4) and 15.3 times higher than ZrO_(2).This was ascribed to the stronger light absorption,faster interfacial charge transfer,and lower photogenerated carrier recombination of the heterojunction composites.

关键词： heterojunction graphitic carbon nitride zirconia coupling grafting

Comparison of different grafting methods on the effect of‘Candidatus Liberibacter asiaticus'transmission

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Fruit Research 2022年第1期2卷 140-146页

作者： Xiaoqing Cui Jingtian Zhang Yangyang Liu Xiaoling Luo Xiaoling Deng Sumiao Zhang Meirong Xu Guangdong Province Key Laboratory of Microbial Signals and Disease Control Citrus Huanglongbing Research LaboratorySouth China Agricultural UniversityGuangzhou 510642China Plant Protection Station of Deqing County in Guangdong Deqing 526600China

grafting is a commonly used method for citrus propagation and transmitting'Candidatus Liberibacter asiaticus'(CLas),the putative causing agent of citrus Huanglongbing(HLB).Optimization of the grafting inoculation methods facilitates the material preparation in HLB research.Citrus buds with CLas were grafted onto healthy sour tangerine(Citrus sunki Hort.ex Tanaka)seedlings by different methods such as top grafting(‘T'grafting and‘V'grafting)and side grafting(abdominal grafting).Along with the symptom observation,titers of CLas in the leaves were detected by RTqPCR monthly.The correlation between the growth status of buds or different grafting methods and the success rate of HLB transmission were analyzed.Our results suggest that sufficient DNA could be extracted to accurately detect the CLas from even only 0.0125 g leaf midrib or branch bark.The probability of CLas transmission was higher in plants inoculated with buds in better growth conditions.The success rate of‘T'grafting was significantly higher than that of side grafting and‘V'grafting.Additionally,in terms of HLB transmission efficiency,the two-bud grafting scheme was superior to the single-bud and three-bud grafting schemes.In conclusion,the grafting combinations with the highest HLB transmission efficiency were screened to provide a methodological reference for the practice or research of grafting to obtain plant material.

关键词： material conditions. grafting

Mechanisms of increasing salt resistance of vegetables by grafting

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Vegetable Research 2022年第1期2卷 72-80页

作者： Mengliang Niu Lanxing Wei Yuquan Peng Yuan Huang Zhilong Bie Key Laboratory of Horticultural Plant Biology Ministry of Education/College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China School of Life Sciences Jianghan UniversityWuhan 430056China

Soil salinity is a serious threat to horticultural production.Improving salt tolerance of vegetables by breeding is a difficult task as salt tolerance is a quantitative trait,regulated by a large number of genes.As a traditional agronomic method,grafting,which is widely practiced in vegetables,especially among members of Cucurbitaceae and Solanaceae,is a useful tool for reducing yield loss caused by salinity.However,the underlying mechanisms of this phenomenon remain largely unknown.Numerous studies have been conducted to uncover these mechanisms by which grafting improves salt tolerance in vegetables.This review summarizes the studies that have been conducted on this topic.In this review,the effects of salt stress on vegetable crops were discussed,and the four main mechanisms by which grafting increases the salt resistance of vegetables,namely,restricting the transport of toxic ions,enhancing the antioxidant system,enhancing the stability of the photosynthetic system,and sending root signals,were discussed.This review concludes by identifying several prospects for future research on increasing the adoption of grafting in vegetables under salinity stress.

关键词： grafting system stability

Hyperpigmentation after surgery for a deep dermal burn of the dorsum of the hand:partial-thickness debridement followed by medium split-thickness skin grafting vs full-thickness debridement followed by thick split-thickness skin grafting

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Burns & Trauma 2016年第2期4卷 123-133页

作者： Yoshitaka Kubota Nobuyuki Mitsukawa Kumiko Chuma Shinsuke Akita Yoshitaro Sasahara Naoaki Rikihisa Kaneshige Satoh Department of Plastic Surgery Chiba University1-8-1InohanaChuo-kuChibaChiba 260-8677Japan Department of Plastic Surgery Tokyo Rosai Hospital4-13-21OmoriminamiOta-kuTokyo 143-0013Japan Department of Plastic Surgery Chiba Rosai Hospital2-16TatsumidaihigashiIchiharaChiba 290-0003Japan

Background:Early excision and skin grafting are commonly used to treat deep dermal burns(DDBs)of the dorsum of the hand.Partial-thickness debridement(PTD)is one of the most commonly used procedures for the excision of burned tissue of the dorsum of the hand.In contrast,full-thickness debridement(FTD)has also been reported.However,it is unclear whether PTD or FTD is better.Methods:In this hospital-based retrospective study,we compared the outcomes of PTD followed by a medium split-thickness skin graft(STSG)with FTD followed by a thick STSG to treat a DDB of the dorsum of the hand in Japanese patients.To evaluate postoperative pigmentation of the skin graft,quantitative analyses were performed using the red,green,and blue(RGB)and the hue,saturation,and brightness(HSB)color spaces.We have organized the manuscript in a manner compliant with the Strengthening the Reporting of Observational Studies in Epidemiology(STROBE)statement.Results:Data from 11 patients were analyzed.Six hands(five patients)received grafts in the PTD group and eight hands(six patients)received grafts in the FTD group.Graft take was significantly better in the FTD group(median 98%,interquartile range 95–99)than in the PTD group(median 90%,interquartile range 85–90)(P<0.01).Quantitative skin color analyses in both the RGB and HSB color spaces showed that postoperative grafted skin was significantly darker than the adjacent control area in the PTD group,but not in the FTD group.Conclusions:There is a possibility that FTD followed by a thick STSG is an option that can reduce the risk of hyperpigmentation after surgery for DDB of the dorsum of the hand in Japanese patients.Further investigation is needed to clarify whether the FTD or the thick STSG or both are the factor for the control of hyperpigmentation.

关键词： thick grafting split

A promising tool for surgical lipotransfer: a constant pressure and quantity injection device in facial fat grafting

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Burns & Trauma 2017年第2期5卷 121-126页

作者： Mei Song Yi Liu Ping Liu Xianying Zhang Burns and Plastic Surgery Center General Hospital of Lanzhou Military Command of the PLA 333 South Riverside Road Lanzhou 730050 GansuChina

Background: The purpose of this study was to preliminarily assess a constant pressure and quantity fat granule injection device for minimal invasive properties in clinic.Methods: A retrospective controlled study was carried out, from October 2013 to January 2015, on 76 female healthy patients aged between 26 and 53 years at the General Hospital of Lanzhou Military Command, China. To achieve small volume, high thrust, and precision requirements of facial fat grafting, an integrated handheld controller and motor design was adopted, reducing the volume and weight of the fat transplantation injection device. The 76 patients underwent 90 procedures each side of the face;each patient was treated with the aforementioned device on the face's left side, while a conventional hand-push injection device was used on the right side as control. The outcome was assessed on pre- and postoperative images, with 6-24 months follow-up.Results: The current device consistently allowed deposition of fat threads at about 55 μL/cm after cannula withdrawal;the volume of fat injected could be precisely adjusted to 0.04 mL/s. This device had the advantages of small-volume injection and convenient operation. The patients exhibited a good, stable shape and a smooth contour line in both sides. The long term satisfaction was higher for the left side than for the right one. Nodules and unevenness occurred only on the right side. Ecchymosis occurred significantly less frequent on the left side than the right one. Intraoperative pain was significantly lower for the left side than the right one.Conclusions: This device offered superior control compared with the conventional one and constitutes a promising tool for surgeons practicing lipotransfer.

关键词： Facial fat grafting Fat granule Invasive

Improvement in affinity and thermostability of a fully human antibody against interleukin-17A by yeast-display technology and CDR grafting

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Acta Pharmaceutica Sinica B 2019年第5期9卷 960-972页

作者： Wei Sun Zhaona Yang Heng Lin Ming Liu Chenxi Zhao Xueying Hou Zhuowei Hu Bing Cuin State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia Medica Chinese Academy of Medical Sciences & Peking Union Medical College

Monoclonal antibodies(m Abs) are widely used in many fields due to their high specificity and ability to recognize a broad range of antigens. IL-17 A can induce a rapid inflammatory response both alone and synergistically with other proinflammatory cytokines. Accumulating evidence suggests that therapeutic intervention of IL-17 A signaling offers an attractive treatment option for autoimmune diseases and cancer. Here, we present a combinatorial approach for optimizing the affinity and thermostability of a novel anti-h IL-17 A antibody. From a large na?ve phage-displayed library, we isolated the anti-IL-17 A m Ab 7 H9 that can neutralize the effects of recombinant human IL-17 A. However, the modest neutralization potency and poor thermostability limit its therapeutic applications. In vitro affinity optimization was then used to generate 8 D3 by using yeast-displayed random mutagenesis libraries.This resulted in four key amino acid changes and provided an approximately 15-fold potency increase in a cell-based neutralization assay. Complementarity-determining regions(CDRs) of 8 D3 were further grafted onto the stable framework of the hu Fv 4 D5 to improve thermostability. The resulting hybrid antibody9 NT/S has superior stabilization and affinities beyond its original antibody. Human fibrosarcoma cellbased assays and in vivo analyses in mice indicated that the anti-IL-17 A antibody 9 NT/S efficiently inhibited the secretion of IL-17 A-induced proinflammatory cytokines. Therefore, this lead anti-IL-17 A m Ab might be used as a potential best-in-class candidate for treating IL-17 A related diseases.

关键词： Monoclonal antibody Antibody maturation Phage display Yeast surface display CDR grafting Antibody engineering

Graft patency in off-pump and conventional coronary artery bypass grafting for treatment of triple vessel coronary disease

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Chinese Medical Journal 2003年第3期116卷 117-120页

作者：胡盛寿王小启宋云虎吕锋 Department of Surgery and Cardiovascular Institute Fuwai Hospital Peking Union Medical College Chinese Academy of Medical Sciences Beijing 100037 China

Objective To compare graft patency in off-pump and conventional coronary artery bypass grafting by using the transit time flow meter in the treatment of triple vessel coronary artery disease. Methods Between June 2000 and April 2001, 60 patients with triple vessel coronary artery disease underwent coronary artery bypass grafting. They were divided into two groups: off-pump and conventional coronary artery bypass. All completed grafts were tested intraoperatively using Transit Time Flow Measurement (TTFM). Preoperative and postoperative variables of the two groups were also compared. Results There were no significant differences in sex, age, weight, acute or remote myocardial infarction, hypertension, diabetes and type of bypass grafts between the two groups. The number of bypass grafts and the assisted respiratory time of the off-pump coronary artery bypass grafting (OPCAB) group were significantly less than those of the conventional coronary artery bypass grafting (CCABG) group. The flow and pulsatile index (PI) of the left anterior descending artery bypass grafts and the right coronary artery bypass grafts were not significantly different between the OPCAB and CCABG groups. The flow of OM in the CCABG group with the multiple anastomosis site of sequential grafts was higher than that in the OPCAB group. Diffused narrow coronary artery bypass grafts in both groups had less flow.Conclusion No signficant differences in graft patency were observed in patients with triple vessel coronary artery disease who had undergone OPCAB or CCABG.

关键词： coronary artery disease bypass grafting