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Properties of Phenolic Resins——CarboresP Binders for Magnesite Carbon Refractories

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China's Refractories 2006年第4期15卷 20-24页

作者： LIU Jun Christoph jacob Luoyang Institute of Refractories Research Sinosteel Corporation RUtGERS Chemicals AG

An environmental friendly carbonaceous material- carboresP （one of the Carbores series materials） was investigated for the production of MgO-C refractories in laboratory scale and field tests. the MgO-C specimens were produced with different CarboresP contents. the bulk density （180℃ × 48h）, CCS, apparent porosity （1000℃ ×3h ） and hot modulus of rupture （1400℃ ×0. 5h ） were tested and contrasted. the appropriate amount of carboresP was 1.0%. the amount of metallic additions can be partially substituted （reduced to 1.5% ）. the microstructure of resin-carboresP binder is anisotropic structure with high oxidation resistance and good thermal-shock stability. the Stress/strain curve indicates that the characteristic length, （LCH） of MgO-C brick with resin/CarboresP bonding has been improved, which means the MgO-C bricks have good mechanical flexibility and stresses absorbability. Field tests were done in slag line of a 40t LF-VD refining steel ladle using Resin/CarboresP bonded ＂ Mt-14A MgO-C bricks. the result shows that the MgO-C bricks by ＂soft bonding＂ have good physical properties and excellent workability during production of the bricks . In contrast with traditional MgO-C brick used for secondary refining furnaces, the spalling tendency of the bricks could be reduced significantly. the average lining life of the resin/ CarboresP bricks has increased by 18. 4% comparing with the pure resin-bonded types.

关键词： Magnesia carbon bricks Coke structure Environmental friendly CarboresP Soft bonding Wedge splitting test Stress/strain curve

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混流式水轮机运行试验稳定性的相似定律

国外大电机 1999年第3期 71-75页

作者： jacob,t 田正忠

近几年来，混流式水轮机运行稳定性研究已经得到了很大发展。但是，从模型试验数据到真机动态特性预测仍然十分困难，本文介绍了混流式水轮机在非设计工况下稳态振动的相似定律，介绍了试验数据到真机的预测方法。

关键词：混流式水轮机运行稳定性试验水轮机相似定律

Involvement of calcium signaling in activation of cisplatin-induced chloride currents in nasopharygeal carcinoma cells

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Involvement of calcium signaling in activation of cisplatin-...

亲缘选择在植物从营养分配向繁殖分配转变中的潜在作用

2008北京国际生理科学学术大会

作者： jacob tJC Cardiff School of Biosciences Cardiff University CF10 3USUK

Our studies demonstrated previously that anti-cancer drug cisplatin(cDDP)activated a process of volume decrease and induced apoptosis in nasopharyngeal carcinoma cells(CNE-2Z).the action of cisplatin was found to be associated with the augmented activity of chloride ***,the mechanism of channel activation induced by cisplatin is not *** study was conducted to investigate the role of calcium signaling pathways in activation of cisplatin-induced chloride currents in nasopharyngeal carcinoma *** cell currents of CNE-2Z cells were recorded by the patch-clamp *** results showed that extracellular application of cisplatin(5μmol/L)induced a chloride current with an activating latency(t)of 271±65 s and a time to reach the peak(t)of 845±166 s in normal bath and pipette solution(control,n=7).Depletion of free cytoplasmic Ca delayed the activation(t=548±107 s)and increased the time to reach the peak of the cisplatin-induced current(t=1628±285 s)(n=6,Pthe extracellular and cytoplasmic Ca-free condition,t(552±111s)and t(1649±381 s)were similar to those recorded under the cytoplasmic Ca-free condition,but were larger than those in the control condition(n=6,Ption of extracellular Ca alone did not alter significantly the activating latency(t=290±86 s)and the time to reach the peak(t=1044±220 s),compared with the control(n=7,P>0.05).the data suggest that the calcium signaling pathway,especially free cytoplasmic calcium,plays an important role in the activation of chloride channel at the early stage of cisplatin- induced cell volume decrease and apoptosis.

关键词： apoptosis apoptotic volume decrease chloride channels calcium signaling

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Journal of Plant Ecology 2023年第6期16卷 135-145页

作者： Renfei Chen Cenxi Shi Liang Zhang Chengyi tu jacob Weiner School of Life Science Shanxi Normal UniversityTaiyuan 030000China State Key Laboratory of Grassland Agro-Ecosystem School of Life SciencesLanzhou UniversityLanzhou 730000China School of Economics and Management Zhejiang Sci-Tech UniversityHangzhou 310000China Department of Environmental Science Policyand ManagementUniversity of CaliforniaBerkeleyCA 94720USA Department of Plant and Environmental Sciences University of CopenhagenDK-1871 FrederiksbergDenmark

根据经典的最优繁殖分配理论,植物生长过程中从营养生长向繁殖分配的转变是突然发生的。一些植物确实如此,这也是农作物产量最大化的一种有效策略。然而,自然界很多植物从营养生长向繁殖分配的转变是渐进发生的。一些修正的生物量分配... 详细信息

根据经典的最优繁殖分配理论,植物生长过程中从营养生长向繁殖分配的转变是突然发生的。一些植物确实如此,这也是农作物产量最大化的一种有效策略。然而,自然界很多植物从营养生长向繁殖分配的转变是渐进发生的。一些修正的生物量分配理论也预测了这种渐变趋势。本研究假设亲缘选择能够改变最优分配理论的预测。通过数学模型,我们研究了正负亲缘选择对植物向繁殖器官分配能量起始时间的影响。基于代价与收益的合理假设,当繁殖器官与营养器官起始生物量比值较高时,处于亲缘选择作用下的植物更可能以一种突变的方式实现从营养生长向繁殖生长的转变。经验数据的观测支持我们的理论预测。这一研究在连接植物生活史与能量分配以及提高农业产量方面具有重要意义。

关键词：广义适合度资源分配繁殖器官营养生长繁殖分配进程

Optimizing Surgical Conditions with the Use of a Modified Spontaneous Respiration, Intravenous Anesthesia and High-Flow Nasal Oxygen for Pediatric Laser Laryngeal Surgery

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Open Journal of Anesthesiology 2023年第11期13卷 234-240页

作者： Dennis E. Feierman Daniel Escobar Kim t. Lam Mark Kronenfeld jacob Sutton Evan P. Salant Maimonides Medical Center Department of Anesthesiology Brooklyn NY USA Northwell Staten Island University Hospital New York USA

the use of Spontaneous Respiration using IntraVEnous anesthesia and High-flow nasal oxygen (StRIVE-Hi) in laryngeal surgery has become more widely reported. this method eliminates the endotracheal tube as a fuel for a potential fire. However, little has been published on its use in the pediatric population. Our case report describes its use in a 2-year-old undergoing micro-direct laryngoscopy with CO2 assisted supraglottoplasty and rigid bronchoscopy for airway obstruction from congenital laryngomalacia. the StRIVE-Hi technique was modified for the pediatric patient by using a lower flow through the nasal cannula (4 L). No major changes in SpO2 were detected during the 30-minute procedure. With back up airway safety equipment in place, StRIVE is proving to be a safe technique with major advantages when used in this unique scenario.

关键词： StRIVE Pediatric Direct Laryngoscopy Laryngomalacia

Flood Frequency Analysis at Oshun River in Asejire Dam Site, Nigeria

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Journal of Earth Science and Engineering 2013年第5期3卷 292-300页

作者： jacob Odeh Ehiorobo Osadolor Christopher Izinyon Department of Civil Engineering University of Benin Benin City 300213 Nigeria

Flood frequency analysis procedure was performed on annual maximum discharge data of River Oshun at Iwo in Osun State, Nigeria for the period 1985 to 2002 utilizing three probability distribution models namely： Extreme EVI （value type-l）, LN （Log normal） and LPIII （Log Pearson type III）. the models were used to predict and compare corresponding flood discharge estimates at 2, 5, 10, 25, 50, 100 and 200 years return periods. the results indicated that Extreme Value type 1 distribution predicted discharge values ranging from 26.6 m3/s for two years to 431.8 m3/s for 200 years return periods; the Log Pearson type III distribution predicted discharge values ranging from 127.2 m3/s for two years to 399.54 m3/s for 200 years return periods and the Log normal distribution predicted discharge values ranging from 116.2 m3/s for two years to 643.9 m3/s for 200 years return periods. From the results~ it was concluded that for lower return periods （t_〈 50 yrs） Extreme Value type 1 and Log Pearson type III could be used to estimate flood quantile values at the station while for higher return periods （t 〉 50 yrs） Log Normal probability distribution model which gives higher estimates could be utilized for safe design in view of the short length of discharge records used for the analysis.

关键词： Flood frequency probability distribution recurrence interval discharge.

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聚合物使水洗井获得新生

国外油气科技 1994年第2期 80-82页

作者： jacob,t 张玉波

Double negative t cells,a potential biomarker for systemic lupus erythematosus

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Precision Clinical Medicine 2020年第1期3卷 34-43页

作者： Jessy J.Alexander Alexander jacob Anthony Chang Richard J.Quigg James N.Jarvis Department of Pathology University of ChicagoChicagoIL 60637USA Departments of Medicine PediatricsJacobs School of Medicine and Biomedical Sciences and GeneticsGenomics&Bioinformatics ProgramUniversity at BuffaloBuffaloNY 14203USA

Systemic lupus erythematosus(SLE)is an autoimmune disease that is a challenge to diagnose and *** is an urgent need for biomarkers to help define organ involvement,and more effective therapies.A unique population of t cells,the CD3^(+)CD4^(−)CD8^(−)(DNeg)cells,is significantly increased in lupus *** cases(53%)of pediatric SLE patients had elevated DNeg cells in their peripheral blood,which correlated with kidney function(R^(2)=0.54).Significant infiltration of DNeg cells was observed in both adult and pediatric lupus kidneys by *** the first time,this study provides direct evidence that DNeg cells facilitate kidney injury in preclinical 8-week-old MRL/lpr lupus *** lupus mice,the increase in DNeg cells tracked with worsening disease and correlated with kidney function(R^(2)=0.85).Our results show that DNeg cells per se can cause kidney dysfunction,increase in number with increase in disease pathology,and could serve as a potential biomarker.

关键词： CD3^(+)CD4^(−)CD8^(−)t cells glomerulonephritis inflammation lupus

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利用藻类生产生物质能源

资源与人居环境 2010年第11期 40-42页

作者： jacob t.Robin 哲伦

海藻制生物能源的优点有学者指出,生物燃料、光电能、核聚变与核裂变4种有发展潜力的能源,被认为是未来最符合可持续能源需求的4种选项。而海藻生物质能源产业已被许多国内外的研究机构认同是最具开创性,也是可解决全球暖化和能源危机... 详细信息

海藻制生物能源的优点有学者指出,生物燃料、光电能、核聚变与核裂变4种有发展潜力的能源,被认为是未来最符合可持续能源需求的4种选项。而海藻生物质能源产业已被许多国内外的研究机构认同是最具开创性,也是可解决全球暖化和能源危机的可行方案。

关键词：生物质能源藻类孢子植物生物乙醇生物质能源产业