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Recent progress in printing flexible electronics: A review

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Science China(Technological Sciences) 2024年第8期67卷 2363-2386页

作者： bi Sheng GAO BuHan HAN Xu HE ZhengRan METTS Jacob JIANG ChengMing ASARE-YEBOAH Kyeiwaa Key laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education School of Mechanical EngineeringDalian University of TechnologyDalian 116024China Center for Materials for Information Technology The University of AlabamaTuscaloosaAL 35487USA Department of Electrical and Computer Engineering Penn State BehrendEriePA 16563USA

Miniaturization and flexibility are becoming the trend in the development of electronic products. These key features are driving new methods in the manufacturing of such products. Printed electronics technology is a novel additive manufacturing technique that uses active inks to print onto a diverse set of substrates, realizing large-area, low-cost, flexible and green manufacturing of electronic products. These advantageous properties make it extremely compatible with flexible electronics fabrication and extend as far as offering revolutionary methods in the production of flexible electronic devices. In this paper, the details of a printing process system are introduced, including the materials that can be employed as inks, common substrates, and the most recently reported printing strategies. An assessment of future setbacks and developments of printed flexible electronics is also presented.

关键词： flexible electronics printing process conductive ink flexible substrate

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Type one autoimmune pancreatitis based on clinical diagnosis: A case report

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World Journal of Clinical Cases 2024年第14期12卷 2438-2444页

作者： bi-Yu Zhang Mou-Wang liang Shuang-Xi Zhang Department of Gastroenterology Guangzhou University of Chinese Medicine Shunde HospitalFoshan 528300Guangdong ProvinceChina Department of Gastroenterology Guangzhou University of Chinese MedicineGuangzhou 510006Guangdong ProvinceChina

BACKGROUND Autoimmune pancreatitis(AIP)is a rare form of autoimmune-mediated pancrea-titis,which is easily misdiagnosed as pancreatic cancer and thus treated *** studied the diagnosis and treatment of a patient with type 1 AIP recent-ly admitted to our hospital,and reviewed the literature to provide a reference for clinical diagnosis of *** SUMMARY The chief complaint was yellowing of the body,eyes and urine for 21 *** pa-tient's clinical presentation was obstructive jaundice and imaging suggested pan-creatic *** was difficult to distinguish between inflammation and *** immunoglobulin G4(IgG4)was markedly ***4 is an important serological marker for type 1 *** patient was diagnosed with AIP,IgG4-related cholangitis,acute cholecystitis and hepatic *** applying hormonal therapy,the patient's symptoms improved *** the same time,imaging suggested that pancreatic swelling subsided,and liver function and other biochemical indicators *** treatment was *** In patients with pancreatic swelling,the possibility of AIP should be considered.

关键词： Autoimmune pancreatitis Characteristics Diagnosis Immunoglobulin G4 Case report

Retro Placental Hematoma: Maternal and Fetal Prognosis at the Maternity of the University Hospital of Bouake

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Open Journal of Obstetrics and Gynecology 2024年第1期14卷 44-56页

作者： Samake Yaya Djanhan lydie Estelle Menin-Messou Benie Michele Kouadio Kouadio Narcisse Akanji Iburaima Alamun M’bro Clausen Georgie Boko Dagoun Dagbesse Elysee Camara Sokhona N’guessan Kouadio Ismael foua.bi pa.l hya.inthe Keita Ismael Vaho Magnificat Marina Kone Minzata Yasmine Doumbia Yacouba Gynaecology-Obstetrics Department Centre Hospitalier Universitaire de Bouaké Bouake Ivory Coast Mother and Child Department Alassane Ouattara University Bouake Ivory Coast

Introduction: Retroplacental haematoma (RPH) is a very serious complication of pregnancy, with life-threatening consequences for both the mother and foetus. The aim of this study is to determine the incidence and epidemiological characteristics of patients with retroplacental haematoma (RPH) and describe the maternal-foetal complications at Bouaké University Hospital. Methods: This was a cross-sectional prospective, descriptive and analytical study carried out at Bouaké University Hospital over a period of 3 years, from January 1, 2019 to December 31, 2021. All parturients with RPH whose delivery took place at the hospital were included in the study. Data were entered and analysed using EPI INFO software version 7.***.2.6. Results: We recorded 2,0959 deliveries, including 202 cases of RPH, representing an incidence of 0.96%. The 21 to 35 age group accounted for 64.4%, multigestas and large multigestas accounted for 58.5% and multiparas accounted for 41.6%. The main signs on clinical examination were metrorrhagia (100%), arterial hypertension (84.6%) and cervical cerclage (79.7%). Preeclampsia accounted for 50% of per-gestational pathologies. Maternal mortality was 12.9%. Morbidity was dominated by anaemia in 64.1%, followed by disseminated intravascular coagulation (DIC) in 21.8%, and the factors associated with this maternal prognosis were multiple gestations, multiparity, Sher grade IIIb and the occurrence of complications such as DIC, shock, renal complications and HEllP syndrome. Neonatal mortality was 79.2%, and the factors associated with these fetal prognoses were cup size ≥ 5 cm and hematoma weight ≥ 500 g. Conclusion: Better screening of at-risk populations, early diagnosis and treatment in an organised and equipped medical and surgical facility would improve prognosis.

关键词： Retroplacental Haematoma lethality Bouaké and Prognosis

Genetic characteristics of H1N1 influenza virus outbreak in China in early 2023

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Virologica Sinica 2024年第3期39卷 520-523页

作者： Xuanxuan li Zefeng Dong Jiaming li Chuanran Dou Deyu Tian Zhenghai Ma Wenjun liu George F.Gao Yuhai bi College of life Science and Technology Xinjiang UniversityUrumchi830046China CAS Key laboratory of pathogen Microbiology and Immunology Institute of MicrobiologyCenter for Influenza Research and Early-warning(CASCIRE)CAS-TWAS Center of Excellence for Emerging Infectious Diseases(CEEID)Chinese Academy of SciencesBeijing100101China Suzhou Center for Disease Control and Prevention Suzhou215004China lafayette College EastonPA 18042USA University of Chinese Academy of Sciences Beijing100049China D.H.Chen School of Universal Health Zhejiang UniversityHangzhou 310058China

Dear Editor,Influenza A virus(IAV)exhibits rapid mutability and antigenic *** the 20th century,IAV has caused at least four pandemics(Yang et al.,2022).Presently,seasonal H_(3)N_(2)and H1N1 are the prevailing human-adaptive IAV subvariants responsible for human *** implementation of public health interventions since the commencement of the COVID-19 pandemic has effectively curtailed global influenza circulation(Olsen et al.,2021).Following the downregulation of the prevention and control strategies against COVID-19,global influenza activity is showing a recovery.

关键词： influenza prevention H1N1

Deep insight of unique phase transition behaviors and mechanism in Zr_(2)Co-H isotope system with ultra-low equilibrium pressure

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Rare Metals 2024年第1期43卷 212-224页

作者： Yang liu pan-pan Zhou Xue-Zhang Xiao Jia-Cheng Qi Jia-Peng bi Tiao Ying Xing-Wen Feng Yan Shi Wen-Hua luo li-Xin Chen State Key laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Institute of Materials China Academy of Engineering PhysicsMianyang 621907China Key laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province Hangzhou 310013China

Efficient capture,safe storage and release of tritium from the international thermonuclear experimental reactor(ITER) reaction exhaust gas is a perplexing problem,and the development of an efficient tritium-getter material with ultra-low hydrogenation equilibrium pressure is considered as a reliable *** this work,Zr_(2)Co alloy was selected as a tritium-getter material and prepared through induction levitation *** performance test results show that Zr_(2)Co exhibits an ultra-low hydrogenation equilibrium pressure of 3.22 × 10^(-6) pa at 25℃ and excellent hydriding kinetics under a low hydrogen pressure of 0.005 ***,unique phase transition behaviors were presented in Zr_(2)Co-H ***,Zr_(2)CoH_(5) formed by Zr_(2)Co hydrogenated at room temperature is initially decomposed into ZrH_(2) and ZrCoH_(3) at200 ℃.With the temperature increasing to 350 ℃,ZrCoH_(3)is dehydrogenated to ZrCo,and then ZrCo further reacts with ZrH_(2) at 650 ℃ to reform Zr_(2)Co and *** the staged phase transition pathways during dehydrogenation,the decomposition of Zr_(2)CoH_(5) occurs preferentially,which is well accordance with both the smallest reaction energy barrier and the maximum reaction spontaneity that are determined respectively from kinetics activation energy and thermodynamics Gibbs free ***,first principles calculation results indicate that the stronger binding of hydrogen in interstitial environments of ZrCoH_(3)and ZrH_(2) triggers the hydrogen-stabilized phase transformation of Zr_(2)CoH_(5).The unique phase transition mechanisms in Zr_(2)Co-H system can shed light on the further exploration and regulation of analogous staged phase transition of hydrogen storage materials.

关键词： Zr_(2)Co alloy Tritium-getter materials Ultralow equilibrium hydrogen pressure Phase transition mechanism

Urothermal Syntheses of Chiral Zincic Benzotriazole-5-carboxylate Frameworks for Iodine Uptake

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Chinese Journal of Structural Chemistry 2021年第2期40卷 199-206,146页

作者： HUANG Zai-Chun WANG Xiao-Fang GOHI bi foua Claude Alain lI Yu-Feng KANG Yao JIANG Zhi-Qiang Deep-processing of Fine Flake Graphite Sichuan Province Key laboratory of Colleges and Universities Panzhihua UniversityPanzhihua 617000China State Key laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

So far,the synthesis of chiral framework with achiral organic ligand still faces great ***,three new coordinated complexes[Zn(btca)Cl]·DMA·N(CH_(3))_(2)(1),[Zn(btca)(Ac^(-))]·N(CH_(3))_(2)(2)and[Zn(btca)]·H_(2)O(3)(DMA=N,N-dimethylacetamide,btca=benzotriazole-5-carboxylate acid)were synthesized via different ***-crystal X-ray diffraction analysis revealed that compounds 1 and 2 were isostructural and showed achiral layer network with fes topology,and 3 presented a chiral three-dimensional framework with eta *** result of this work has demonstrated that urothermal synthesis will be promising means of constructing chiral framework with achiral building *** 3 also displayed an excellent property of iodine uptake.

关键词： urothermal synthesis benzotriazole-5-carboxylate acid chirality I2 absorption

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磷化工副产物磷铁渣绿色循环真空脱硅

矿产综合利用 2024年第2期45卷 123-126页

作者：白倩荆碧李秋霞云南师范大学化学化工学院云南昆明650500

这是一篇冶金工程领域的论文。为了绿色利用磷化工副产物磷铁渣,本文对磷化工副产物磷铁添加CaO进行脱硅热力学计算并开展实验研究。在温度为900~1700 K范围内,SiO_(2)和CaO的摩尔比为1∶1~3时,反应生成CaO·SiO_(2)、2CaO·SiO_(2)、3... 详细信息

这是一篇冶金工程领域的论文。为了绿色利用磷化工副产物磷铁渣,本文对磷化工副产物磷铁添加CaO进行脱硅热力学计算并开展实验研究。在温度为900~1700 K范围内,SiO_(2)和CaO的摩尔比为1∶1~3时,反应生成CaO·SiO_(2)、2CaO·SiO_(2)、3CaO·SiO_(2)和3CaO·2SiO_(2)的△G_(T)值均小于0,说明添加适量的CaO可以脱除磷化工副产磷铁中的SiO_(2)。进一步实验研究表明:压力为10~40 pa,温度为1573 K时,加入适量氧化钙,使原料磷铁中的二氧化硅和氧化钙的摩尔比为1∶1,得到的上层产物主要是以硅酸盐Ca_(2)SiO_(4)、Ca_(3)SiO_(5)的形式存在,下层产物主要以Fe_(2)P存在,脱硅磷铁经检测ω(Si)<0.07%,可以作为过渡金属磷化物的前驱体,为磷铁绿色循环与利用提供了新思路。

关键词：冶金工程磷铁渣脱硅金属磷化物真空

Retro Placental Hematoma: Maternal and Fetal Prognosis at the Maternity of the University Hospital of Bouake

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输水明渠着生藻类群落结构特征对水动力条件的响应

Open Journal of Obstetrics and Gynecology（妇产科期刊） 2024年第1期

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湖泊科学 2024年第2期36卷 364-376页

作者：段绍祎杨梦薇管光华朱宇轩毕永红武汉大学水资源工程与调度全国重点实验室武汉430072 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室武汉430072

明渠输水系统的着生藻类异常增殖会淤塞拦污栅,降低明渠输水能力,并增加清理工作压力。目前,有关着生藻类对水动力的响应研究多在天然河流、湖泊中开展野外原型观测,针对混凝土衬砌表面着生藻类的水动力研究仍然少见。由于混凝土基质与... 详细信息

明渠输水系统的着生藻类异常增殖会淤塞拦污栅,降低明渠输水能力,并增加清理工作压力。目前,有关着生藻类对水动力的响应研究多在天然河流、湖泊中开展野外原型观测,针对混凝土衬砌表面着生藻类的水动力研究仍然少见。由于混凝土基质与泥沙基质的显著差异,着生藻类在衬砌明渠和自然水体中对水动力的响应特性不同。为探究水动力对明渠着生藻类生长及群落结构的影响,特开展明渠中着生藻类的培养观测及水动力冲刷实验。通过分析着生藻类叶绿素a含量、群落结构、无灰干重、细胞密度等指标,以探究不同基质粗糙度、不同生长阶段的着生藻类对不同水动力条件的响应。结果表明:着生藻类建群过程具有3个明显阶段,分别为迟滞期、指数生长期、稳定期;随着流速增大,着生藻类生物量先上升后下降,当流速v>0.6 m/s时,着生藻类的生长被显著抑制;冲刷流速增大至v=0.8 m/s的2天后,着生藻类生物量显著减少,群落多样性下降。在着生藻类建群迟滞期(实验中约3周),该阶段提高流速对着生藻类生物量的冲刷剥离效果最明显;基质粗糙度越小,着生藻类建群迟滞期越长,通过水力冲刷的除藻效果越明显。本研究探索了不同水动力条件下明渠着生藻类的响应规律,有助于认识明渠着生藻类的群落特征,可为明渠输水系统内着生藻类水力调控提供重要依据。

关键词：着生藻类混凝土基质藻类生长水动力条件水力除藻藻类生态调控