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A Scalable Pillar Layered Metal-Organic Framework for Natural Gas Purification

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Chemical Research in Chinese Universities 2024年第4期40卷 675-681页

作者： lu nan LAN Lan GAO Qiang LI Na BU Xian-He School of Materials Science and Engineering Nankai UniversityTianjin300350P.R.China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin300071P.R.China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212003P.R.China

One-step harvest of high-purity methane(CH_(4))from ternary propane/ethane/methane(C_(3)H_(8)/C_(2)H_(6)/CH_(4))mixtures remains a desirable yet challenging goal for natural gas ***,adsorbents either suffer from high capacity and selectivity,or are caught in a dilemma of scalable ***,we demonstrate a scalable pillar layered metal-organic framework Ni-MOF for highly efficient one-step CH_(4)***-MOF exhibits high C_(2)H_(6)and C_(3)H_(8)uptakes of 83.3 and 86.1 cm^(3)/g at 298 K and 100 kPa and remarkable C_(2)H_(6)/CH_(4)(50/50,volume ratio,21.5)and C_(3)H_(8)/CH_(4)(50/50,volume ratio,212.0)***,high C_(2)H_(6)(42.2 cm^(3)/g at 10 kPa)and C_(3)H_(8)(64.7 cm^(3)/g at 5 kPa)capacities in the low-pressure region at 298 K were realized on Ni-MOF,suggesting the strong affinities of Ni-MOF towards C_(2)H_(6)and C_(3)H_(8).Furthermore,the dynamic breakthrough experiments revealed that purifying CH_(4)from natural gas in one-step can be achieved in Ni-MOF with high-purity(>99.8%)and productivity(346.0 cm^(3)/g).Most significantly,the production of Ni-MOF can be scalably synthesized at room temperature,rendering it promising potential for industrial *** combined advantages of exceptional separation performance,scalability,and cycle stability of Ni-MOF pave the way for one-step CH_(4)purification from natural gas.

关键词： Metal-organic framework Adsorption and separation Natural gas purification Scale-up synthesis

Structural transformation from Waugh-type to Keggin-type polyoxomolybdate-based crystalline material for photo/electrocatalysis

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Rare Metals 2024年第5期43卷 2241-2250页

作者： Pei-Sen Wang Zi-Tong Wang Ya-Ya Tan Peng Chen Xue-Cheng Zhang lu-nan Zhang Yong-Ge Wei lu-Bin Ni School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of Natural and Biomimetic Drugs Peking UniversityBeijing100191China

An inorganicDorganic hybrid crystalline material(SiMo_(12)O_(40))[Cu(2,2'-bipy)_(2)]_(2)·2H_(2)O(Complex 1,2,2'-bipy=2,2'-bipyridine)was synthesized for the first time by using 2,2'-bipy and transition metal copper to convert Waugh-type polyoxometalate[MnMo_(9)O_(3)_(2)]_(6-)into a Keggin polyoxometalate structure[SiMo_(12)O_(40)]^(4-)under hydrothermal conditions in glass *** crystal tests and a series of characterizations were carried out on Complex *** structure of Complex 1 is composed of[SiMo_(12)O_(40)]^(4-)and[Cu^(Ⅱ)(2,2'-bipy)_(2)]^(2+).The five-coordinated Cu is connected to two 2,2'-bipy through CuDN bonds,forming an approximately square ***,Complex 1 exhibited good photocatalytic performance for methylene blue degradation and electrocatalytic nitrite reduction properties simultaneously.

关键词： Polyoxometalates Inorganic-organic hybrid materials Photocatalytic Electrocatalytic

Differential distribution of fibrovascular proliferative membranes in 25-gauge vitrectomy for proliferative diabetic retinopathy

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1462-1468页

作者： nan lu Shi-Lin Yang Shuo Guo Dong-Ni Yang Li Liu Chun-Hui Fan Ying Guo Jian Liu Wei Zhao Department of Ophthalmology the First Hospital of QinhuangdaoQinhuangdao 066000Hebei ProvinceChina School of Control Engineering Northeastern University at QinhuangdaoQinhuangdao 066004Hebei ProvinceChina

AIM:To analyze the distribution of fibrovascular proliferative membranes(FVPMs)in proliferative diabetic retinopathy(PDR)patients that treated with pars plana vitrectomy(PPV),and to evaluate the outcomes ***:This was a retrospective and cross-sectional *** 25-gauge(25-G)PPV cases operated for PDR from May 2018 to April *** to the FVPMs images outlined after operations,subjects were assigned into three groups:arcade type group,juxtapapillary type group,and central type *** patients were followed up for over one *** characteristics,operation-related variables,postoperative parameters and complications were ***:Among 103 eyes recruited,the FVPMs distribution of nasotemporal and inferiosuperioral was significantly different(both P<0.01),with 95(92.23%)FVPMs located in the nasal quadrants,and 74(71.84%)in the *** eyes with a central FVPM required the longest operation time,with silicon oil used in most patients,generally combined with tractional retinal detachment(RD)and rhegmatogenous RD,the worst postoperative bestcorrected visual acuity(BCVA)and the highest rates of recurrent RD(all P<0.05).FVPM type,age of onset diabetes mellitus,preoperative BCVA,and combined with tractional RD and rhegmatogenous RD were significantly associated with BCVA improvement(all P<0.05).Compared with the central type group,the arcade type group had higher rates of BCVA ***:FVPMs are more commonly found in the nasal and inferior mid-peripheral retina in addition to the area of arcade *** 25-G PPV for treating PDR eyes with central FVPM have relatively worse prognosis.

关键词： proliferative diabetic retinopathy fibrovascular proliferative membrane 25-gauge pars plana vitrectomy

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抖音短视频中的网络营销策略

山西财经大学学报 2024年第S01期46卷 142-144页

作者：鲁楠郑州商学院党委宣传部河南郑州451200

在当今互联网时代,网络对人们的学习、生活和工作都带来了强烈冲击。尤其是在市场营销方面,传统营销手段已经无法满足企业的需求,网络营销逐渐成为企业获取竞争优势的重要手段。作为网络营销的新兴领域,社交媒体营销在社会化媒体时代具... 详细信息

在当今互联网时代,网络对人们的学习、生活和工作都带来了强烈冲击。尤其是在市场营销方面,传统营销手段已经无法满足企业的需求,网络营销逐渐成为企业获取竞争优势的重要手段。作为网络营销的新兴领域,社交媒体营销在社会化媒体时代具有重要地位,其中最具代表性的平台之一就是抖音短视频。首先阐述抖音短视频及其网络营销的定义与特点,指出抖音短视频在网络营销中的优势,然后就抖音短视频中的网络营销策略和实际应用等方面进行探讨,旨在帮助企业更好地应用抖音短视频进行网络营销。

关键词：抖音短视频网络营销市场营销竞争优势

Performance of nutritional and inflammatory markers in patients with pancreatic cancer

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World Journal of Clinical Oncology 2024年第8期15卷 1021-1032页

作者： Jie-nan lu lu-Sha Zhou Shuai Zhang Jun-Xiu Li Cai-Juan Xu Department of Nursing The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina

BACKGROUND Systemic inflammation and nutrition play pivotal roles in cancer progression and can increase the risk of delayed recovery after surgical *** To assess the significance of inflammatory and nutritional indicators for the prognosis and postoperative recovery of patients with pancreatic cancer(PC).METHODS Patients who were diagnosed with PC and underwent surgical resection at our hospital between January 1,2019,and July 31,2023,were enrolled in this retrospective observational cohort *** the data were collected from the electronic medical record *** biomarkers-the albumin-to-globulin ratio,prognostic nutritional index(PNI),systemic immune–inflammation index(SII),neutrophil-to-lymphocyte ratio(NLR),platelet-to-lymphocyte ratio(PLR),nutritional risk index(NRI),and geriatric NRI were *** A total of 446 patients with PC met the inclusion criteria and were subsequently *** with early postoperative discharge tended to have higher PNI values and lower SII,NLR,and PLR values(all Plue emerged as an independent risk factor influencing early recovery after ***,both univariable and multivariable Cox regression analyses revealed that the PNI value was the strongest prognostic marker for overall survival(OS;P=0.028)and recurrence-free survival(RFS;Plue was established at 47.30 using X-tile *** in the PNI-high group had longer OS(P<0.001)and RFS(P=0.0028)times than those in the PNI-low *** Preoperative systemic inflammatory-nutritional biomarkers may be capable of predicting short-term recovery after surgery as well as long-term patient outcomes.

关键词： Pancreatic cancer Inflammation and nutrition Biomarker Postoperative recovery Prognosis

First-in-human Results of the Novel Transcatheter Mitral Valve Repair System for Severe Mitral Regurgitation

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Cardiology Discovery 2024年第2期4卷 148-159页

作者： Zhi-nan lu Yutong Ke Yingnan Bian Jing He Wenhui Wu Xinmin Liu Yang Li Ran Liu Taiyang luo Xunan Guo Guangyuan Song Interventional Center of vavular Heart Disease Beijing Anzhen HospitalCapital Medical UniversityBeijing 100029China Echocardiography Department Bejing Anzhen HospitalCapital Medical UniversityBeijing 100029China Research and Development Department Enlight MedicalShanghai 201209China

Objective:To evaluate the feasibility,safety,and effectiveness of a novel edge-to-edge mitral valve repair system(the NovoClasp system)in patients with severe mitral ***:In this prospective,single-arm,first-in-human study conducted at Beijing Anzhen Hospital,data were collected from patients undergoing transcatheter edge-to-edge repair using the NovoClasp *** study candidates were patients exhibiting a mitral regurgitation severity of 3+or more and were at high-risk or contraindicated for surgical *** success and device success according to the Mitral Valve Academic Research Consortium definitions were used as primary *** safety and efficacy outcomes were prospectively assessed at device implantation,discharge,and 30 d,6 months,and 12 months ***:Between October 1,2021,and January 31,2022,11 patients were treated for moderate-to-severe(grade 3+)or severe(grade 4+)mitral regurgitation using the NovoClasp *** patients had a baseline New York Heart Association functional class oflll-lIV,with 7/11 exhibiting complex mitral valve *** patients achieved the primary endpoints of technical and device success,with a post-operative 30-d mitral regurgitation grade reduction to 2+or lower,which was maintained at 12 *** patient had minor bleeding and hematoma at the access site before discharge,and 2 patients were readmitted due to fast atrial fibrillation within 12 months *** additional cases of death,adverse cerebral or cardiovascular events,or device-related complications was observed during the ***:This study suggested the potential feasibility and safety of the NovoClasp system,showing a promising technical and device success rate,along with a decrease in mitral regurgitation severity.A further pivotal study is needed to assess the procedural and long-term outcomes.

关键词： Mitral valve insufficiency Transcatheter edge-to-edge repair Feasibility Safety

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堆载和固结对高饱和度废弃黏土抗剪强度影响

中国环境科学 2024年第8期44卷 4446-4454页

作者：徐辉王锦楠李升智王璐楠詹良通浙江理工大学建筑工程学院浙江杭州310018 浙江理工大学科技与艺术学院浙江绍兴312369 浙江大学软弱土与环境土工教育部重点实验室浙江杭州310058

以杭州某基坑开挖渣土为研究对象,开展了24组大尺寸固结-直剪试验,研究了瞬时、阶梯型和斜坡型3种加载方式下高饱和度黏土固结过程抗剪强度的变化规律.结果表明,在上覆荷载作用下,土体产生瞬时压缩,压缩量随荷载的增大而增加;在3种加载... 详细信息

以杭州某基坑开挖渣土为研究对象,开展了24组大尺寸固结-直剪试验,研究了瞬时、阶梯型和斜坡型3种加载方式下高饱和度黏土固结过程抗剪强度的变化规律.结果表明,在上覆荷载作用下,土体产生瞬时压缩,压缩量随荷载的增大而增加;在3种加载方式下,当最终荷载相同时,最终沉降量较为接近;剪切曲线为应变硬化型,初始切线模量和最终剪应力均随固结度或上覆荷载的增大而提高;加载方式对初始切线模量有一定影响,对最终剪应力影响较小;抗剪强度随固结度的增长呈线性增大趋势,增大幅度随荷载的增大而显著;在3种加载方式下,当上覆荷载和固结度相同时,抗剪强度基本接近.基于试验结果,建立了高饱和度黏土固结过程抗剪强度预测模型,并利用本文试验数据和文献数据验证了其可靠性.模型分析结果表明:随着固结度的增长,抗剪强度包络线截距呈线性增大,而弯曲程度呈线性减小.在高饱和度废弃黏土堆填工程中,可采用本文建立的模型来预测不同堆填方式下土体固结过程的抗剪强度.

关键词：高饱和度黏土固结度堆载方式抗剪强度

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比较法与区域国别学:三个理论陷阱

海南师范大学学报（社会科学版） 2024年第4期37卷 121-133页

作者：鲁楠清华大学法学院北京100084

区域国别学为比较法带来新机遇,但掩藏在比较法中的理论缺陷极易在区域国别学中放大,以至给两者的发展和域外法治实践带来消极影响,这种理论缺陷表现为教条主义、后殖民主义和相对主义三个陷阱。比较法应在反思和防范这三种理论陷阱的... 详细信息

区域国别学为比较法带来新机遇,但掩藏在比较法中的理论缺陷极易在区域国别学中放大,以至给两者的发展和域外法治实践带来消极影响,这种理论缺陷表现为教条主义、后殖民主义和相对主义三个陷阱。比较法应在反思和防范这三种理论陷阱的基础上,为自身与区域国别学的良好结合寻找新的理论,形成兼采功能比较与意义比较方法,以及面向法治现代化的多元主义法律观。

关键词：区域国别学比较法教条主义后殖民主义相对主义

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油气开发项目经济评价中间产物的价值研究

天然气技术与经济 2024年第2期18卷 45-50页

作者：鲁楠中油(新疆)石油工程有限公司设计分公司新疆克拉玛依834000

为了解决油气开发项目地面工程无法独立开展经济评价的问题,采用内部转移定价相关理论并结合经济评价方法确定了油气开发项目“中间产物”的定价方法。研究结果表明:(1)利用油气开发项目上游中间产物作为下游成本进行经济评价的方法是... 详细信息

为了解决油气开发项目地面工程无法独立开展经济评价的问题,采用内部转移定价相关理论并结合经济评价方法确定了油气开发项目“中间产物”的定价方法。研究结果表明:(1)利用油气开发项目上游中间产物作为下游成本进行经济评价的方法是可行的,对于系统工程中各阶段独立评价具有一定的指导意义;(2)油气开发项目使用中间产品进行经济评价应选取合适的中间产品,可选择“井口采出液价”或“井口油价”等,并充分考虑各成本费用和一定的风险系数进行不断地修正,保证项目经济评价结论客观可靠,以便为投资者决策提供依据;(3)计算中间产物价格并进行系统各阶段独立评价不仅适用于油田项目,在所有生产性工业项目中均适用,利用资金的时间价值理论,针对多系统项目分别对各系统中间产品进行量化,应用于各系统独立经济评价,满足经济评价效益与费用相一致的原则。

关键词：油气开发项目地面工程经济评价中间产物井口气价内部转移定价