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巨柏根际多功能溶磷菌W13对植物生长的促生效果研究

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高原农业 2024年第1期8卷 57-64页

作者：聂丽妍王泽莹巩文峰魏丽萍西藏农牧学院资源与环境学院西藏农牧学院植物科学学院西藏林芝860000

从巨柏根际土壤中分离多功能溶磷促生菌株,为高原环境下多功能溶磷菌的收集和研究提供研究基础。本研究从西藏自治区林芝市朗县采集巨柏根际土壤样本,采用梯度稀释法筛选溶磷菌,并结合溶磷圈法和钼锑抗比色法测定溶磷能力,选出溶磷能力... 详细信息

从巨柏根际土壤中分离多功能溶磷促生菌株,为高原环境下多功能溶磷菌的收集和研究提供研究基础。本研究从西藏自治区林芝市朗县采集巨柏根际土壤样本,采用梯度稀释法筛选溶磷菌,并结合溶磷圈法和钼锑抗比色法测定溶磷能力,选出溶磷能力较好的菌株,并对IAA、固氮、解钾等多种促生特性进行测定,最终筛得具有多功能的溶磷菌,通过盆栽实验对溶磷菌的促生效果进行验证,并结合形态特征、革兰氏染色和16S rDNA基因序列对菌株进行鉴定。W13具有产IAA、铁载体、固氮、解钾等多种促生特性,为非脫羧勒克菌(Leclercia adecarboxylata)。经盆栽促生试验结果表明,W13对油菜和青稞具有不同程度的促生作用,与对照组相比W13有效提高了油菜植株的根长、株高、鲜重和干重,并分别增长了119%、55.30%、157%和50%。青稞株高效果显著增长了44.80%。多功能溶磷细菌W13对油菜和青稞都具有一定的促生作用,因此该菌具有作为生物肥料的潜力,用于植物生产。

关键词：巨柏根际溶磷细菌促生效果

Adhesive Contact of Elastic Solids with Self-Affine Fractal Rough Surfaces

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Acta Mechanica Solida Sinica 2024年第2期37卷 265-270页

作者： Xuan-Ming Liang Shi-wen Chen Si-He Wang Zhen-Yuan gong Jun feng Gang-feng Wang Department of Engineering Mechanics SVL and MMMLXi’an Jiaotong UniversityXi’an710049China OPPO Mobile Telecommunications Corporation Ltd. Dongguan523860China

The elastic adhesive contact of self-affine fractal rough surfaces against a rigid flat is simulated using the finite element method. An array of nonlinear springs, of which the force-separation law obeys the Lennard–Jones potential, is introduced to account for the interfacial adhesion. For fractal rough surfaces, the interfacial interaction is generally attractive for large mean gaps, but turns repulsive as the gap continuously shrinks. The interfacial interactions at the turning point corresponding to the spontaneous contact are shown for various surfaces. For relatively smooth surfaces, the probability density distributions of repulsion and attraction are nearly symmetric. However, for rougher surfaces, the simulation results suggest a uniform distribution for attraction but a monotonously decreasing distribution with a long tail for repulsion. The pull-off force rises with increasing ratio of the work of adhesion to the equilibrium distance, whereas decreases for solids with a higher elastic modulus and a larger surface roughness. The current study will be helpful for understanding the adhesion of various types of rough solids.

关键词： Fractal rough surfaces Adhesion Contact mechanics Lennard-Jones potential

Plasma-assisted ammonia synthesis under mild conditions for hydrogen and electricity storage:Mechanisms,pathways,and application prospects

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Frontiers in Energy 2024年第4期18卷 418-435页

作者： feng gong Yuhang JING Rui XIAO Key Laboratory of Energy Thermal Conversion and Process Measurement and Control of the Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China

Ammonia,with its high hydrogen storage density of 17.7 wt.%(mass fraction),cleanliness,efficiency,and renewability,presents itself as a promising zero-carbon ***,the traditional Haber−Bosch(H−B)process for ammonia synthesis necessitates high temperature and pressure,resulting in over 420 million tons of carbon dioxide emissions annually,and relies on fossil fuel *** contrast,dielectric barrier discharge(DBD)plasma-assisted ammonia synthesis operates at low temperatures and atmospheric pressures,utilizing nitrogen and hydrogen radicals excited by energetic electrons,offering a potential alternative to the H−B *** method can be effectively coupled with renewable energy sources(such as solar and wind)for environmentally friendly,distributed,and efficient ammonia *** review delves into a comprehensive analysis of the low-temperature DBD plasma-assisted ammonia synthesis technology at atmospheric pressure,covering the reaction pathway,mechanism,and catalyst system involved in plasma nitrogen *** from current research,it evaluates the economic feasibility of the DBD plasmaassisted ammonia synthesis technology,analyzes existing dilemmas and challenges,and provides insights and recommendations for the future of nonthermal plasma ammonia processes.

关键词： plasma catalysis nitrogen fixation ammonia synthesis hydrogen storage catalyst carbon neutralization

Towards an actionable One Health approach

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贫困所致传染病(英文) 2024年第2期13卷 1-6页

作者： Zhang Xiao-Xi Lederman Zohar Han Le-Fei Schurer Janna M. Xiao Li-Hua Zhang Zhi-Bing Chen Qiu-Lan Pfeiffer Dirk Ward Michael P. Sripa Banchob Gabri?l Sarah Dhama Kuldeep Acharya Krishna Prasad Robertson Lucy J. Deem Sharon L. Aenishaenslin Cécile Dantas-Torres Filipe Otranto Domenico Grace Delia Wang Yang Li Peng Fu Chao Poeta Patrícia Rahman Md. Tanvir Kassegne Kokouvi Zhu Yong-Zhang Yin Kun Liu Jiming Wang Zhao-Jun Guo Xiao-Kui gong wen-feng Schwartl?nder Bernhard Ren Ming-Hui Zhou Xiao-Nong School of Global Health Chinese Center for Tropical Diseases Research Shanghai Jiao Tong University School of Medicine Shanghai People’s Republic of China Institute of One Health Shanghai Jiao Tong University Shanghai People’s Republic of China Medical Ethics and Humanities Unit Hong Kong University Hong Kong People’s Republic of China Center for One Health University of Global Health Equity Butaro Rwanda College of Veterinary Medicine South China Agricultural University Guangzhou People’s Republic of China School of Ecology and Environment Hainan University Haikou Hainan People’s Republic of China Branch of animal and vector-borne diseases Division of Infectious Disease Control Chinese Center for Disease Control and Prevention Beijing People’s Republic of China Centre for Applied One Health Research and Policy Advice Department of Infectious Diseases and Public Health Jockey Club College of Veterinary Medicine and Life Sciences City University of Hong Kong Hong Kong SAR People’s Republic of China Department of Pathobiology and Population Sciences Royal Veterinary College London United Kingdom Sydney School of Veterinary Science The University of Sydney Camden Australia Tropical Disease Research Center Department of Tropical Medicine Faculty of Medicine Khon Kaen University Khon Kaen Thailand Laboratory of foodborne parasitic zoonoses Department of translational physiology infectiology and public health Chair Faculty Committee on Internationalisation Faculty of Veterinary Medicine Ghent University Merelbeke Belgium Division of Pathology ICAR-Indian Veterinary Research Institute (IVRI) Bareilly Uttar Pradesh India Department of Livestock Services Animal Quarantine Office-Kathmandu Budhanilkantha Kathmandu Nepal Parasitology Department of Paraclinical Sciences Faculty of Veterinary Medicine Norwegian University of Life Sciences ?s Norway One Government Drive Saint Louis Zoo Institute for Conservation Medicine St. Louis USA Groupe de Recherche en épidémi

Background Despite the increasing focus on strengthening One Health capacity building on global level, challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific region. Recognizing these gaps, the One Health Action Commission (OHAC) was established as an academic community for One Health action with an emphasis on research agenda setting to identify actions for highest *** text This viewpoint describes the agenda of, and motivation for, the recently formed OHAC. Recognizing the urgent need for evidence to support the formulation of necessary action plans, OHAC advocates the adoption of both bottom-up and top-down approaches to identify the current gaps in combating zoonoses, antimicrobial resistance, addressing food safety, and to enhance capacity building for context-sensitive One Health *** By promoting broader engagement and connection of multidisciplinary stakeholders, OHAC envisions a collaborative global platform for the generation of innovative One Health knowledge, distilled practical experience and actionable policy advice, guided by strong ethical principles of One Health.

关键词： One Health Global Health One Health Action Commission Research agenda

Internal limiting membrane peeling combined with silicone oil or air tamponade for highly myopic foveoschisis

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1079-1085页

作者： Jin Deng wen-Tao Sun Ke gong Li-Ping Wang feng-Zhi Li Xi’an People’s Hospital(Xi’an Fourth Hospital) Shaanxi Eye HospitalAffiliated People’s Hospital of Northwest UniversityXi’an 70004Shaanxi ProvinceChina

AIM:To compare the efficacy of pars plana vitrectomy(PPV)combined with internal limiting membrane(ILM)and silicone oil or sterile air tamponade for the treatment of myopic foveoschisis(MF)in highly myopic ***:This retrospective study included 48 myopic eyes of 40 patients with MF and axial lengths(ALs)ranging from 26-32 mm treated between January 2020 and January *** patients were underwent PPV combined with ILM peeling followed by sterile air or silicone oil tamponade and followed up at least *** on the features on spectral-domain optical coherence tomography(SD-OCT),the eyes were divided into the MF-only group(Group A,n=15 eyes),MF with central foveal detachment group(Group B,n=20 eyes),and MF with lamellar macular hole group(Group C,n=13 eyes).According to AL,eyes were further divided into three groups:Group D(26.01-28.00 mm,n=12 eyes),Group E(28.01-30.00 mm,n=26 eyes),and Group F(30.01-32.00 mm,n=10 eyes).The best-corrected visual acuity(BCVA),central foveal thickness(CFT),and complications were ***:The patients included 16 males and 24 females with the mean age of 56±*** BCVA and CFT improved in all groups after surgery(P0.05).The intergroup differences of BCVA and CFT postoperatively were statistically significant in Group D,E,and *** eyes were injected with sterile air,and 28 eyes were injected with silicone oil for tamponade based on the ***,there was no statistically significant difference among Groups D,E,and F in terms of the results of sterile air or silicone oil *** mean recovery time was 5.9mo for MF patients subjected to silicone oil tamponade and 7.7mo for patients subjected to sterile air tamponade,and the difference was not statistically ***:PPV and ILM peeling combined with silicone oil or sterile air tamponade can achieve good results for MF in highly myopic eyes with ALs

关键词： axial length myopic foveoschisis highly myopic internal limiting membrane pars plana vitrectomy

Cross-linked Electrospun Gel Polymer Electrolytes for Lithium-Ion Batteries

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Chinese Journal of Polymer Science 2024年第8期42卷 1021-1028页

作者： Xue gong Qin Xiao Qing-Yin Li wen-Cui Liang feng Chen Long-Yu Li Shi-Jie Ren College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China

Lithium-ion batteries(LIBs)benefit from an effective electrolyte system design in both terms of their safety and energy storage ***,a series of precursor membranes with high porosity were produced using electrospinning technology by mixing PVDF and triblock copolymer(PS-PEO-PS),resulting in a porous structure with good interconnections,which facilitates the absorbency of a large amount of electrolyte and further increases the ionic conductivity of gel polymer electrolytes(GPEs).It has been demonstrated that post-cross-linking of the precursor membranes increa ses the rigidity of the nanofibers,which allows the polymer film to be dimensionally sta ble up to 260℃while maintaining superior electrochemical *** obtained cross-linked GPEs(CGPEs)showed high ionic conductivity up to 4.53×10^(-3)S·cm^(-1).With the CGPE-25,the assembled Li/LiFeP04 half cells exhibited good rate capability and maintained a capacity of 99.4%and a coulombic efficiency of99.3%at 0.1 *** results suggest that the combination of electrospinning technique and post-cross-linking is an effective method to construct polymer electrolytes with high thermal stability and steadily decent electrochemical performance,particularly useful for Lithium-ion battery applications that require high-temperature usage.

关键词： Electrospinning Cross-linked Gel polymer electrolytes Lithium-ion batteries

变间隙F-P干涉仪的形变对光谱结果的影响分析

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光学与光电技术 2024年第3期22卷 16-22页

作者：王红勇岳松赖建军胡栋马浩然宫文峰阙俊华中光电技术研究所一武汉光电国家研究中心湖北武汉430223 华中科技大学一武汉光电国家研究中心湖北武汉430074

传统的傅里叶红外光谱成像设备(FTIR)所用的干涉仪体积较大,变间隙法布里-珀罗干涉仪(F-P干涉仪)以其小体积紧凑型的优点解决了传统FTIR设备的小型化问题。但由于变间隙F-P干涉仪内部光学镜片在安装时需要将镜片紧密贴合在一起,其紧固... 详细信息

传统的傅里叶红外光谱成像设备(FTIR)所用的干涉仪体积较大,变间隙法布里-珀罗干涉仪(F-P干涉仪)以其小体积紧凑型的优点解决了传统FTIR设备的小型化问题。但由于变间隙F-P干涉仪内部光学镜片在安装时需要将镜片紧密贴合在一起,其紧固力可能对镜片局部施加力使得镜片产生形变,从而影响所得到的光谱数据的精确度。以某型基于变间隙F-P干涉仪的红外成像光谱设备为例,通过Zygo激光干涉仪测量F-P干涉仪镜片在紧固后的受力形变,建立干涉仪形变仿真模型。通过仿真模型分析,明确了F-P干涉仪的形变会导致光谱响应强度和波长准确度的下降,为后续对F-P腔的结构优化设计指明了方向。

关键词：光谱红外干涉仪 F-P腔光学形变

Impact of open hepatectomy on postoperative bile leakage in patients with biliary tract cancer

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World Journal of Gastrointestinal Surgery 2024年第1期16卷 67-75页

作者： Gang Wu wen-Ying Li Yu-Xing gong feng Lin Chen Sun General Surgery Department The Second Affiliated Hospital of Harbin Medical UniversityHarbin 150000Heilongjiang ProvinceChina

BACKGROUND Bile leakage is a common and serious complication of open hepatectomy for the treatment of biliary tract *** To evaluate the incidence,risk factors,and management of bile leakage after open hepatectomy in patients with biliary tract *** We retrospectively analyzed 120 patients who underwent open hepatectomy for biliary tract cancer from February 2018 to February *** leak was defined as bile drainage from the surgical site or drain or the presence of a biloma on *** incidence,severity,timing,location,and treatment of the bile leaks were *** risk factors for bile leakage were analyzed using univariate and multivariate logistic regression *** The incidence of bile leak was 16.7%(20/120),and most cases were grade A(75%,15/20)according to the International Study Group of Liver Surgery *** median time of onset was 5 d(range,1-14 d),and the median duration was 7 d(range,2-28 d).The most common location of bile leakage was the cut surface of the liver(70%,14/20),followed by the anastomosis site(25%,5/20)and the cystic duct stump(5%,1/20).Most bile leaks were treated conservatively with drainage,antibiotics,and nutritional support(85%,17/20),whereas some required endoscopic retrograde cholangiopancreatography with stenting(10%,2/20)or percutaneous transhepatic cholangiography with drainage(5%,1/20).Risk factors for bile leakage include male sex,hepatocellular carcinoma,major hepatectomy,blood loss,and blood *** Bile leakage is a frequent complication of open hepatectomy for biliary tract ***,most cases are mild and can be conservatively *** sex,hepatocellular carcinoma,major hepatectomy,blood loss,and blood transfusion were associated with an increased risk of bile leak.

关键词： Open hepatectomy Bile leak Biliary tract cancer Risk factors Management Complication

Lightweight innovation ADIs help development of renewable energy and new technology industries in China

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China Foundry 2024年第5期21卷 507-515页

作者： Qi-dong Yan Xu-dong gong wen-bang gong Jin-cheng Liu ADI Committee of China Foundry Association Beijing 100000China Yuzhou Henglilai New Materials Co. Ltd.Xuchang 452570HenanChina Kunshan Changjian Foundry Industry Co.Ltd. Kunshan 215311JiangsuChina School of Mechanical Engineering and Automation Wuhan Textile UniversityWuhan 430200China WFO Ferrous Metals Commission Shenyang 110022China

The world is undergoing profound changes in energy and *** are vigorously developing new sustainable energy sources and *** energy sources encompass various technologies such as wind turbines,solar energy,nuclear energy,and ***,emerging technology fields include new energy vehicles,robots,and artificial intelligence devices,among *** renewable energy industries and implementation of new technologies necessitate the development and adoption of new equipment and *** ductile iron(ADI)is renowned for its unique microstructure and superior *** utilizing ADI,lightweight and innovative castings can be designed to not only reduce weight but also save energy and decrease *** importantly,these castings enhance the efficiency and reliability of new energy equipment and emerging technology *** paper describes the development,applications,and future prospects of lightweight and innovative ADI castings within sectors such as solar photovoltaic(PV),wind power generation,industry robots,and trucks in China.

关键词： lightweight ADI renewable energy emission reduction