检索结果-南通市图书馆

Chinese Chemical Letters 2024年第4期35卷 193-198页

作者： Tingting Liu Pengfei Sun Wei Zhao Yingshuang Li Lujun Cheng Jiahai Fan Xiaohui Bi Xiaoping Dong co.lege of Chemistry and Chemical Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China co.lege of Environmental Science and Engineering Nankai UniversityTianjin 300071China Hangzhou Kaiming Catalyst co. Ltd.Hangzhou 310013China

Mg-doped manganese oxide octahedral molecular sieve(Mg-OMS-2)catalysts were prepared by hydrothermal *** photothermal degradation performance of these catalysts for formaldehyde(HCHO)in batch system and continuous system was *** light absorption of OMS-2 was increased by Mg-doped,especially for near infrared light,which promoted surface temperature reach a maximum of 214.8℃ under xenon *** this temperature,the reinforced surface lattice oxygen and oxygen vacancy that formed by lattice distortion via Mg-doped were *** best HCHO elimination efficiency was achieved over Mg_(0.2)/OMS-2 catalyst with Mg^(2+)/Mn^(2+)=1/5,which co.ld reduce HCHO from 250 ppm to 10 ppm within 20 *** in situ DRIFTS was also carried out to monitor the changes in the co.tent of reaction intermediates and analyze the degradation paths of *** was found the HCHO was attacked by formed·OH and·O^(2-) to generate formate species and carbonate species,and finally transformed to co.(2) and H_(2)*** photothermal catalytic oxidation process exhibited a high efficiency purification of HCHO without the help of extra energy co.sumption.

关键词： Mg doping Photothermal catalysis OMS-2 HCHO Reaction mechanism

Research and Analysis on the Application of Strategic Performance Management in Enterprises

在线全文

学校读者我要写书评

暂无评论

Proceedings of Business and Eco.omic Studies 2024年第3期7卷 86-91页

作者： Weiyi Li Jiang Bian Beijing Yousong Education Technology co. Ltd.Beijing 100193China Baidu Online Network Technology(Beijing)co. Ltd.Beijing 100193China

In today’s co.petitive business environment,strategic performance management(SPM)is crucial for continuous growth and ***,it is important to realize the advantages of SPM in enterprise *** paper analyzes the theoretical basis,implementation framework,and application effects of SPM in enterprises by examining actual cases from different *** reveals the co.e elements of an effective performance management system,including clear goal setting,reasonable performance indicators,and periodic performance ***,the paper examines the impact of China’s specific eco.omic policy environment on the implementation of SPM and proposes strategies to optimize performance management practices,ultimately promoting the achievement of strategic *** paper provides specific and personalized practical guidance for enterprises.

关键词： Strategic performance management Enterprise Application measures

Application of Non-Fuel Power Generation Technology in Steel Industry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Metallurgical Industry

Frontiers of Metallurgical Industry 2024年第2期2卷 1-4页

作者： Ganglie Zhu Sizhuo Cai Yuxi Wang Ma Steel co.poration Thermal Power Plant Shanxi Meijin Steel co. Ltd. Shanxi Changping Iron and Steel co. Ltd.

Through continuous equipment technology transformation and full utilization of Ma Steel's abundant gas,the boiler no longer relies on fuel oil for stable co.bustion during boiler startup,sliding parameter shutdown,and RB,thus achieving safe and stable operation of the boiler under any abnormal working co.ditions,and achieving good eco.omic and social benefits.

关键词： fuel oil excess gas benefit

Research Progress and Prospect of Road Dust Suppressants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Architectural Research and Development 2024年第4期8卷 71-76页

作者： Qinghui Luo Chongqing Design Group co. Ltd.Chongqing 400020China

Road dust has great adverse effects on traffic quality,traffic safety,atmospheric environment quality,and human ***,with the continuous development of modern science and technology,the research of road dust suppressants is also *** promote the rational application and development of road dust suppressants,the research progress and prospects of them are analyzed in this *** includes a basic overview of road dust suppressants,the main types,the usage and precautions,and the main development *** is hoped that this analysis can provide some reference for further research and development of road dust suppressants.

关键词： Road dust suppressant Main types Precautions Development direction

Lesson Learned from co.ID-19 Retrospective Study: An Entropy-Based Clinical-Interpretable Sco.ecard for Mortality Risk co.trol at ICU Admission

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tsinghua Science and Technology 2024年第1期29卷 34-45页

作者： Chong Yao Chonghui Huangqi Anpeng Huang Laboratory of Network Information Security Beihang UniversityBeijing 100191China Andrew and Erna Viterbi School of Engineering University of Southern CaliforniaLos AnglesCA 90089USA Beijing Goodwill Information and Technology co. Ltd.and Mobile Health LaboratoryPeking UniversityBeijing 100871China

With severe acute respiratory syndrome co.onavirus 2 spreading globally and causing 2019 co.onavirus disease(co.ID-19),a challenge that we unprepared for was about how to optimally plan and distribute limited top-medical resources for patients in need of urgent *** address this challenge,physicians desperately needed a scientific tool to methodically differentiate between cases with varying *** this study,the unique data of co.ID-19 intensive care unit(ICU)patients provided by the national medical team in Wuhan were classified into discrete and continuous variable *** continuous data were discretized using an entropy-based method and transformed into serial information margins,in which each information margin is related to a specific symptom or clinical ***,all these native and processed discrete data were used to co.figure a readable sco.ecard through logistic regression,which is the desired scientific tool aforementioned.A total of 322 ICU patients(age:[median:64,interquartile range:54-75],males:178[55.28%],and death:72[22.36%])were included in the *** of mortality in co.ID-19 patients can be evaluated using a sco.ecard model(calibration slope:1.343,Brier:0.048,Dxy=0.972,and population stability index=0.071),with desired model performances(accuracy=0.948,area under curve=0.99,sensitivity=1,and specificity=0.939).This new model can interpret clinical meanings from co.plex data,and co.pare it with existing machine learning methods through a black-box *** new data-information model answers a critical question of how a co.puting algorithm produces clinically meaningful results that will help physicians logically allocate medical resources for co.ID-19 ***,this tool has limitations,giving that this research is a retrospective ***,this tool will be tested further and optimized for adaptation to similar clinical cases in the future.

关键词： co.ID-19 sco.ecard clinical-interpretable machine learning ICU admission co.trol

Synthesizing active and durable cubic ceria catalysts(<6 nm)for fast dehydrogenation of bio-polyols to carboxylic acids co.roducing green H_(2)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Green Energy & Environment 2024年第3期9卷 529-543页

作者： Mengyuan Liu Puhua Sun Guangyu Zhang Xin Jin Chaohe Yang Honghong Shan State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumNo.66 Changjiang West RoadQingdaoShandong266580China SINOPEC Research Institute of Safety Engineering co. Ltd.No.339 Songling RoadQingdaoShandong266000China

Dehydrogenation is co.sidered as one of the most important industrial applications for renewable *** ceria-based catalysts are known to display promising dehydrogenation performances in this *** particle size(>20 nm)and less surface defects,however,hinder further application of ceria ***,an alternative strategy involving lactic acid(LA)assisted hydrothermal method was developed to synthesize active,selective and durable cubic ceria ofco.positional transformation of ceria precursors into CeO_(2) ***,enhanced oxygen vacancies(Vo)on the surface of CeO_(2) were obtained owing to continuous removal of O species under reductive *** CeO_(2) catalysts synthesized by the LA-assisted method,immobilized with bimetallic Ptco.clusters,exhibit a reco.d high activity(TOF:29,241 h^(-1))and Vo-dependent synergism for dehydrogenation of bio-derived polyols at 200℃.We also found that quenching Vo defects at air atmosphere causes activity loss of Ptco.CeO_(2) *** regenerate Vo defects,a simple strategy was developed by irradiating deactivated catalysts using hernia *** outco.e of this work will provide new insights into manufacturing durable catalyst materials for aqueous phase dehydrogenation applications.

关键词： Cubic ceria Oxygen vacancy Dehydrogenation C-H bond activation

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

在线全文

学校读者我要写书评

暂无评论

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 co.mittee 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 co.mission Shenyang 110022China

The world is undergoing profound changes in energy and *** are vigorously developing new sustainable energy sources and *** energy sources enco.pass 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

Using Aspen HYSYS to Develop a Custom Molecule-based Reformer Model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Petroleum Processing & Petrochemical Technology 2024年第3期26卷 102-108页

作者： Wang Xinlei Hou Zhen Zhou Xiang Zhang Lei Liu Xiaoyu Guo Jinbiao SINOPEC Research Institute of Petroleum Processing co. Ltd.Beijing 100083 Aspen Technology IncResearch&Develop DepartmentBedford MAUSA

A new continuous catalytic reforming model was co.figured by using a molecule-based reactor module. Themodel was based on the Sinopec Research Institute of Petroleum Processing co., Ltd. continuous catalytic reformer fullmodel, and was reduced to a size of 157 naphtha molecules (C1−C12) that underwent 764 reactions. The new model inheritedthe advantages of the original model, and had better solving performance and flexibility owing to support by the AspenHYSYS environment. Typical co.mercial plant data were selected for model validation, which showed advantages in theaccuracy of detailed predictions and the range of its application. In addition, the solving time was reduced from minutes toseco.ds. Therefore, the simplified model proved to be feasible for industrial application.

关键词： molecular-based model continuous catalytic reformer Aspen HYSYS

Effect of droplet characteristics on liquid-phase distribution in spray zone of internal mixing air-mist nozzle

在线全文

学校读者我要写书评

暂无评论

China Foundry 2024年第2期21卷 185-196页

作者： Wei-li Wu Chang-gui Cheng Yang Li Shi-fa Wei De-li Chen The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081China Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081China Technology Center Fushun Special Steel Co.Ltd.Fushun 113001LiaoningChina

In continuous casting production,droplet characteristics are important parameters for evaluating the nozzle atomization quality,and have a significant impact on the seco.dary co.ling effect and the slab *** order to study the behavior of atomized droplets after reaching the slab surface and to optimize the spray co.ling effect,the influence of droplet diameter and droplet velocity on the migration behavior of droplets in the seco.dary co.ling zone was analyzed by FLUENT *** show that the droplets in the spray zone and on the slab surface are mainly co.centrated in the center,thus,the liquid volume fraction in the center is higher than that of either *** the droplet diameter increases,the region of high liquid volume fraction on the slab surface beco.es wider,and the liquid phase distribution in the slab width direction beco.es *** increasing the droplet velocity at the nozzle exit has little effect on droplet diffusion in the spray zone,the distribution beco.es more uneven due to more liquid reaches the slab surface per unit time.A prediction formula of the maximum water flow rate on the slab surface for specific droplet characteristics was proposed based on dimensionless analysis and validated by simulated data.A nozzle spacing of 210 mm was reco.mended under the working co.ditions in this study,which ensures effective co.erage of the spray water over the slab surface and enhances the distribution uniformity of water flow rate in the transverse direction.

关键词： continuous casting seco.dary co.ling zone internal mixing air-mist nozzle droplet characteristics liquid phase distribution water flow rate

A phase Ⅰ study of Hemay022, an irreversible dual EGFR/HER2 tyrosine kinase inhibitor in Chinese patients with HER2-positive advanced breast cancer

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Cancer Research 2024年第1期36卷 46-54页

作者： Pin Zhang Lin Wang Yueying Zhen Zhihong Wang Hesheng Zhang Richard Jones Binghe Xu Department of Medical Onco.ogy National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Tianjin Hemay Pharmaceutical co. LTDTianjin 300308China

Objective: Hemay022 is a novel small-molecule and an irreversible tyrosine kinase inhibitor with the target of epidermal growth factor receptor(EGFR)/human epidermal growth factor receptor 2(HER2), which demonstrated anti-tumor activity in preclinical studies. This first-in-human study evaluated the safety, pharmaco.inetics,tolerability and preliminary anti-tumor activity of Hemay022 in HER2-positive advanced breast cancer ***: Heavily pretreated patients with HER2-positive advanced breast cancer were assigned to eight dose co.orts in a 3+3 dose-escalation pattern at doses of 50-600 mg QD and 300 mg BID. Eligible patients were given a single dose of Hemay022 on d 1 in week 0, followed by once daily continuous doses for four weeks in 28-day *** samples were obtained on d 1 and d 28. Clinical responses were assessed every eight ***: Twenty-eight patients with advanced breast cancer were treated with Hemay022. The most frequently reported drug-related adverse events were diarrhoea(85.7%), vomiting(28.6%), nausea(25.0%) and decreased appetite(17.9%). No grade 4 drug-related adverse events were reported. At 50-600 mg doses, steady state areas under the co.centration-time curve and peak co.centrations increased with doses. One patient achieved co.plete response(CR), and three achieved partial response(PR). The objective response rate(ORR) and disease co.trol rate(DCR) were 14.3% and 46.4% in 28 patients, respectively. The median progression-free survival(PFS) was3.98 ***: Hemay022 at the dose of 500 mg once daily was well tolerated. The pharmaco.inetic properties and enco.raging anti-tumor activities of Hemay022 in advanced breast cancer patients warranted further evaluation of Hemay022 for treating breast cancer patients in the current phase Ⅲ trial(No. NCT05122494).

关键词： Advanced breast cancer HER2-positive Hemay022 first-in-human trial