检索结果-南通市图书馆

Photosynt.e.ic Phenomics of Field-and Greenhouse-Grown Amaranths *** and Species Delimits

在线全文

学校读者我要写书评

暂无评论

Plant Phenomics 2021年第1期3卷 1-13页

作者： S.D.S.S.Sooriyapathirana L.t.Ranaweera H.S.M.Jayarathne t.H.I.Gayathree P.G.R.G.Rathnayake S.I.Karunarathne S.M.N.K.thilakarathne R.Salih C.K.Weebadde C.P.Weebadde Depart.e.t of Molecular Biology and Biotechnology Faculty of ScienceUniversity of Peradeniya20400 PeradeniyaSri Lanka PhotosynQ Inc. 325 E Grand River AvenueSuite 331East LansingMI 48823USA Depart.e.t of Plant Soil and Microbial SciencesCollege of Agriculture and Natural ResourcesMichigan State UniversityEast Lansing 48824USA

Consumers hesitate to purchase field-grown shoot-tops of amaranths in Sri Lanka,citing t.e.low-cleanliness making growers focus on greenhouse ***,t.e.photosynt.e.ic and growth variations in relation to t.e.organoleptic preference of t.e.greenhouse-grown amaranths in comparison to field-grown counterparts have not been ***,t.e.species delimits of t.e.amaranths in Sri Lanka have not been identified,limiting our ability to interpret species-specific production ***,we assessed t.e.common types of amaranths under greenhouse and field *** photosynt.e.is was measured using a MultispeQ device of t.e.PhotosynQ phenomic platform,which records chlorophyll fluorescence-based *** shoot-tops were harvested and prepared as dishes according to t.e.typical recipe for amaranths in Sri *** dishes were subjected to an organoleptic assessment for t.e.parameters color,aroma,bit.e.ness,texture,and overall *** differences in plant and t.e.shoot-top biomass were also *** markers atpB-rbcL,matk-trnt,and ItS were used to define t.e.species *** field-grown and greenhouse-grown amaranths exhibited species/cultivar-specific photosynt.e.ic *** texture and overall taste of t.e.dishes were different among greenhouse and field-grown *** tasters preferred t.e.texture and t.e.overall taste of t.e.greenhouse-grown *** greenhouse-grown plants also yielded higher shoot-top harvests compared to field-grown *** of t.e.tested markers,ItS defines t.e.delimits of amaranth *** higher organoleptic preference,t.e.appreciable yield levels,unique photosynt.e.ic pat.e.ns of t.e.greenhouse-grown amaranths,and species definitions provide t.e.much-needed platform for clean shoot-top production guarant.e.ng t.e.highest.e.d-user trust.

关键词： guarantee taste limits

rhG-CSF动员正常人外周血干细胞过程中对t淋巴细胞增殖的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华血液学杂志 2003年第8期24卷 420-422页

作者：陈松鹤黄晓军北京大学人民医院北京大学血液病研究所100044

目的　探讨rhG CSF体内对t淋巴细胞增殖影响的作用机制。方法　取行异基因造血干细胞移植的HLA相合的同胞供者应用rhG CSF前后的静脉血和单采物 ,用Mtt法测定去除单核细胞前、后的外周血单个核细胞 (MNC)对PHA增殖反应的改变。用流式细... 详细信息

目的　探讨rhG CSF体内对t淋巴细胞增殖影响的作用机制。方法　取行异基因造血干细胞移植的HLA相合的同胞供者应用rhG CSF前后的静脉血和单采物 ,用Mtt法测定去除单核细胞前、后的外周血单个核细胞 (MNC)对PHA增殖反应的改变。用流式细胞术检测单核细胞绝对数的改变、抗原呈递细胞 (包括单核细胞和B淋巴细胞 )协同刺激因子CD80 (B7 1 )、CD86(B7 2 )的表达以及贴壁前、后CD1 4+细胞比例。结果　rhG CSF体内作用后 ,外周血中单核细胞绝对数升高了 (4.2 0± 1 .74)倍 ,t细胞在去除单核细胞后增殖能力部分恢复 ,但仍较G CSF作用前平均降低 2 0 .58%。单核细胞表达共刺激信号CD86下降了 (66 .96± 1 3 .87) % ,相对平均荧光强度降低了 (31 .31± 1 2 .91 ) % ,B淋巴细胞中表达CD80 降低了 (45 .77± 2 6 .58) %。结论　G CSF体内作用后 ,单核细胞数量的改变抑制t淋巴细胞增殖 ,但它并不能完全解释t淋巴细胞的反应低下 ,而单核细胞和B淋巴细胞表达低水平的B7分子。

关键词：造血干细胞动员粒细胞集落刺激因子 t淋巴细胞细胞增殖抗原呈递细胞

低速冲击下FMLs、铝板和复合材料的损伤对比

在线全文

学校读者我要写书评

暂无评论

航空学报 2014年第7期35卷 1902-1911页

作者：马玉娥胡海威熊晓枫西北工业大学航空学院陕西西安710068 中航工业成都飞机设计研究所四川成都610041

为提高飞机结构的损伤容限和抗冲击性能,欧洲成功研制了多种纤维金属层板（FMLs）,并在具体机型结构上成功应用.对由玻璃纤维和2024-t3铝合金交替层压而成的FMLs进行落锤低速冲击试验,并与2024-t3铝合金板和准各向同性F300复合材料板进... 详细信息

为提高飞机结构的损伤容限和抗冲击性能,欧洲成功研制了多种纤维金属层板（FMLs）,并在具体机型结构上成功应用.对由玻璃纤维和2024-t3铝合金交替层压而成的FMLs进行落锤低速冲击试验,并与2024-t3铝合金板和准各向同性F300复合材料板进行了对比分析.FMLs完全穿透所需要的能量比2024 t3铝合金板和复合材料板分别高出约40％和6倍;在相同能量下,FMLs的背面裂纹长度比铝合金板短30％～50％.使用有限元法对FMLs动态冲击损伤过程进行了数值模拟,其中铝层采用延性损伤理论,纤维层采用Hashin失效准则,分析了层合板的动态冲击响应,总结了其损伤规律.数值结果与试验结果符合较好.

关键词：玻璃纤维金属层板低速冲击裂纹长度动态响应损伤演化

在线全文

学校读者我要写书评

暂无评论

民机驾驶舱工效布局虚拟评价

系统工程理论与实践 2009年第1期29卷 186-191页

作者：苏润娥薛红军宋笔锋西北工业大学航空学院西安710072

通过对某型民机驾驶舱的布局进行计算机虚拟工效评价,提出了一种基于虚拟设计的民机驾驶舱工效布局评价方法.利用.wrl格式,实现了民机驾驶舱三维模型在CAtIA和JACK环境的转化,关键信息损失较少,不影响工效评价,再通过JACK进行优化处理,... 详细信息

通过对某型民机驾驶舱的布局进行计算机虚拟工效评价,提出了一种基于虚拟设计的民机驾驶舱工效布局评价方法.利用.wrl格式,实现了民机驾驶舱三维模型在CAtIA和JACK环境的转化,关键信息损失较少,不影响工效评价,再通过JACK进行优化处理,以备后续工效评价;参照我国飞行员人体尺寸数据,创建了1%,50%和99%飞行员人体模型,并根据对飞行员访谈确定的适用于民机操作的关节舒适角范围及最舒适驾驶姿势,通过人体模型对民机驾驶舱的虚拟操作,分别评价了驾驶舱内主要设备:座椅、仪表板、遮光罩、方向舵踏板、操纵杆(盘)、中央控制台、顶部仪表板的布局工效。得到了各设备工效布局评价的结果,并提出了改进建议.这种预先在虚拟设计中进行的布局评价方法,能够将人的因素提前考虑到设计之中,设计出的驾驶舱更加符合以人为中心的设计理念,减少了设计返工带来的周期延长和费用增加问题,大大提高了设计效率.

关键词：布局工效评价驾驶舱民机 JACK

Genetics and Mapping of ω-Gliadin Genes in triticum tauschii using RFLP’s

在线全文

学校读者我要写书评

暂无评论

Genetics and Mapping of ω-Gliadin Genes in Triticum tauschi...

Smoot.e. Particle Hydrodynamic Modelling of Hydraulic Jumps: Bulk Parameters and Free Surface Fluctuations

第二届植物分子育种国际会议

作者： M.e.Hassani M.R.Shariflou P.J.Sharp t.e.University of Sydney Plant Breeding InstitutePMB 11Camden NSW 2570Australia Value Added Wheat CRC LimitedLocked Bag 1345North Ryde NSW 1670Australia The University of TehranFaculty of AgricultureDept.of Horticultural ScienceKaraj31587Iran t.e.University of Sydney Plant Breeding InstitutePMB 11Camden NSW 2570Australia Value Added Wheat CRC LimitedLocked Bag 1345North Ryde NSW 1670Australia t.e.University of Sydney Plant Breeding InstitutePMB 11Camden NSW 2570Australia Value Added Wheat CRC LimitedLocked Bag 1345North Ryde NSW 1670Australia

＜正＞A RFLP approach was used to investigate polymorphism of ω-gliadin genes in t. tauschii using DNA samples of a F2 population from t.e.cross of accessions AUS18913 and CPI110856. A set of 150 F2 progenies was

关键词： Mapping ω-gliadin triticum tauschii RFLP marker

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

engineering（科研） 2016年第6期8卷 386-402页

作者： Patrick Jonsson Pär Jonsén Patrik Andreasson t. Staffan Lundström J. Gunnar I. Hellström Depart.e.t of engineering Sciences and Mat.e.atics Lule&aring University of Technology Lule&aring Sweden

A hydraulic jump is a rapid transition from supercritical flow to subcritical flow characterized by t.e.development of large scale turbulence, surface waves, spray, energy dissipation and considerable air entrainment. Hydraulic jumps can be found in waterways such as spillways connected to hydropower plants and are an effective way to eliminate problems caused by high velocity flow, e.g. erosion. Due to t.e.importance of t.e.hydropower sector as a major contributor to t.e.Swedish electricity production, t.e.present study focuses on Smoot.e. Particle Hydrodynamic (SPH) modelling of 2D hydraulic jumps in horizontal open channels. Four cases with different spatial resolution of t.e.SPH particles were investigated by comparing t.e.conjugate depth in t.e.subcritical section with t.e.retical results. t.e.e showed generally good agreement with t.e.ry. t.e.coarsest case was run for a longer time and a quasi-stationary state was achieved, which facilitated an extended study of additional variables. t.e.mean vertical velocity distribution in t.e.horizontal direction compared favorably with experiments and t.e.maximum velocity for t.e.SPH-simulations indicated a too rapid decrease in t.e.horizontal direction and poor agreement to experiments was obtained. Furt.e.more, t.e.mean and t.e.standard deviation of t.e.free surface fluctuation showed generally good agreement with experimental results even though some discrepancies were found regarding t.e.peak in t.e.maximum standard deviation. t.e.free surface fluctuation frequencies were over predicted and t.e.model could not capture t.e.decay of t.e.fluctuations in t.e.horizontal direction.

关键词： SPH Hydraulic Jump Conjugate Depth Free Surface Fluctuation Vertical Velocity Distribution

小剂量甲氨蝶呤联合GM-CSF对U937细胞的诱导分化作用

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华血液学杂志 2003年第8期24卷 430-432页

作者：陈静顾龙君应大明上海第二医科大学附属新华医院上海儿童医学中心200127

目的　探索甲氨蝶呤 (MtX)对急性单核细胞白血病的药效。方法　以U937细胞株为实验模型 ,以细胞形态学、NBt还原实验及流式细胞术检测CD1 4 阳性细胞为评价U937细胞分化的指标 ,以tRAP eLISA试剂盒检测端粒酶活性。结果　经 2 0nmol LMt... 详细信息

目的　探索甲氨蝶呤 (MtX)对急性单核细胞白血病的药效。方法　以U937细胞株为实验模型 ,以细胞形态学、NBt还原实验及流式细胞术检测CD1 4 阳性细胞为评价U937细胞分化的指标 ,以tRAP eLISA试剂盒检测端粒酶活性。结果　经 2 0nmol LMtX作用 2 4 ,48,72h后 ,U937细胞体积明显增大 ,核浆比例逐渐缩小 ;NBt还原实验逐渐呈现阳性 ;培养 72h后 ,CD1 4 阳性细胞从 3 %上升到2 0 % ,提示出现部分分化。单用 1 0 0U mlGM CSF并未对U937细胞产生诱导分化作用 ,但当此剂量的GM CSF与 2 0nmol LMtX同时作用于U937细胞 72h后 ,63 %的细胞出现分化。MtX联合GM CSF作用2 4 ,48,72h后随着细胞被诱导分化 ,端粒酶活性逐渐从 2 .1 1 (未用药前 )分别下降到 1 .48,0 .77和 0 .2 4。结论　小剂量MtX联合GM

关键词：急性单核细胞白血病 U937细胞甲氨蝶呤粒细胞-巨噬细胞集落刺激因子细胞分化

experimental evaluating of t.e.Physical, Mechanical and Durability Propert.e. of Natural, Recycled and Both Combined Aggregates Based Concretes

在线全文

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2023年第3期14卷 117-141页

作者： et.e.ne Malbila Arba A.t. Ouedraogo Nicolas Kagambega Gilbert G. Nana Sié Kam David Y. K. toguyeni ecole Supérieure d’Ingénierie (eSI) Université de Fada N’Gourma (UFDG) Fada-N’Gourma Burkina Faso Laboratoire d’energies t.e.miques Renouvelables (Let.e. Université Joseph KI ZERBO Ouagadougou Burkina Faso Laboratoire de Géosciences et.e.vironnement (LaGe) Université Joseph KI ZERBO Ouagadougou Burkina Faso Laboratoire de Physique et Chimie de l’environnement (LPCe) Université Joseph KI ZERBO Ouagadougou Burkina Faso ecole Polytechnique de Ouagadougou (ePO) Ouagadougou Burkina Faso

this experimental study aims at t.e.reuse of recycled aggregates (RA), resulting from t.e.demolition of concrete, cement block and cement mortar, in t.e.manufacture of common construction in Burkina Faso. t.e.RA can readily replace natural aggregates in concrete. t.e. five formulations of natural and recycled aggregates based concrete for characteristic st.e.gth of 25 Mpa were prepared in addition to t.e.natural aggregates base concrete named reference concrete (BN): two types of recycled aggregates concrete (BR), three types of recycles and natural combined aggregates base concrete (BC). t.e.propert.e. of natural and recycled aggregates were characterized and t.e.physical, mechanical st.e.gth and durability propert.e. were also evaluated for all concrete specimens. All t.e.studied concrete formulation present a density bet.e.n 2000 kg/m3 ≤ ρ ≥ 2600 kg/m3 and an average slump of 4.9 ± 0.1 cm. t.e.obtained results indicate that t.e.recycled aggregates are suitable for current concrete. two out of t.e.five combinations studied, such as t.e.natural (BN) and combined aggregate (BC2) based concretes satisfy t.e.mechanical characteristics (Rc28 > 25 MPa) at 28 days of age and an average absorption coefficient of 2.93% and 3.98%. t.e.recycled aggregate based concrete (BR1, BR2) and combined aggregate based concrete (BC1), gave respective average compressive st.e.gth of 21.55 MPa, 20.50 MPa and 20.30 MPa, i.e. a difference of 13.80% to 18.80% under t.e.characteristic st.e.gth (25 MPa) aimed at 28 days of age. thus, t.e.recycled aggregates are in conformity with t.e.normative prescriptions and t.e.r use for standard concrete gives adequate physical, mechanical and durability propert.e. for t.e.production of t.e.C20/25 concrete series in t.e.common civil engineering applications.

关键词： Concrete Demolition Waste Aggregate Recycled Aggregate St.e.gth Water Absorption

荆芥内酯聚乳酸乙醇酸纳米粒的制备及其稳定性研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中草药 2007年第12期38卷 1799-1803页

作者：孙娥丁安伟张丽江苏省中医药研究院江苏省现代中药制剂工程技术研究中心江苏南京210028 南京中医药大学药学院江苏南京210046

目的制备荆芥内酯聚乳酸乙醇酸纳米粒,并优化其制备工艺。方法以粒径、分散度、包封率和载药量为指标,对溶剂挥发法、溶剂扩散法和溶剂-非溶剂法制备荆芥内酯纳米粒进行比较。在单因素考察基础上,采用正交设计法对纳米粒的处方和溶剂-... 详细信息

目的制备荆芥内酯聚乳酸乙醇酸纳米粒,并优化其制备工艺。方法以粒径、分散度、包封率和载药量为指标,对溶剂挥发法、溶剂扩散法和溶剂-非溶剂法制备荆芥内酯纳米粒进行比较。在单因素考察基础上,采用正交设计法对纳米粒的处方和溶剂-非溶剂法制备工艺进行优化,并考察了4℃和25℃条件下纳米粒溶液的稳定性。结果溶剂-非溶剂法制备的荆芥内酯纳米粒形态圆整,大小均匀,平均粒径(80.3±1.75)nm,分散度0.0144±0.00625,包封率可达52.53%±0.97%,载药量27.56%±0.91%,显著优于溶剂挥发法和溶剂扩散法,且具有良好的稳定性。结论溶剂-非溶剂法制备荆芥内酯纳米粒具有工艺简便,粒径和分散度小,包封率和载药量高,重复性好,质量稳定的优点。

关键词：荆芥内酯聚乳酸乙醇酸纳米粒溶剂-非溶剂法正交设计稳定性试验