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The optimal conditions for rearing L. sativae is using field bean of 15-20 cm tall with a daily supply of honey at 20°C.
该蝇最佳饲育条件为在 20°C 定温下、每日供食纯蜂蜜、并以 1520 cm 高去除复叶之菜豆苗供其产卵。
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After the carboxymethylation,the solubility of pachyman in the water was significantly increased,its β-D-glucan characteristic absorption peak at 890 cm-1 became weak obviously,and its methylene vibration absorption peak and CO antisymmetrical stretch vibration absorption peak appeared at 1 333 and 1 606 cm-1 respectively,which indicated that the carboxymethylation succeeded.The analysis of AFM results showed that CMP molecules existed in different morphology under different solution conditions,and that the concentration,ionic strength and solvent physical chemistry characteristics of polysaccharide solution had effects on the CMP chains conformation and the action mode between different molecular chains.The phenomena were considered to be related to hydrogen bond association and intramolecular and intermolecular electrostatic interactions of CMP.
结果表明:经过羧甲基修饰,茯苓多糖在水中的溶解性显著增加,890 cm-1 处的β-D-葡聚糖特征吸收峰明显减弱,1 333 cm-1 处出现次甲基振动吸收峰,1 606 cm-1 处出现〖JG(〗C〖ZJLX,Y〗O〖JG)〗非对称伸缩振动吸收峰,表明羧甲基化成功;原子力显微镜分析表明:在不同溶液条件下,CMP分子以不同形态存在,多糖溶液的浓度、离子强度及溶剂的物化特性均能对CMP的分子链构象及链间相互作用形式产生影响,推测可能与CMP分子内、分子间的氢键缔合及静电作用有关,CMP分子与云母基底间的吸附及静电作用也会对CMP的分子链构象及图像质量产生影响。
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Infra-red spectra of polybrominated biphenyl s and polybrominated biphenyl ether in electronic and electrical appliances were compared with their standard ones to determine if C-Br bond belongs to the characteristic absorption spectra of 650-500 cm ,thus selecting brominate based flame retardants qualitatively.
采用红外光谱法采集电子电气产品中的聚合物部件中多溴联苯和多溴联苯醚的红外谱图,与标准红外谱图对比,判定该部件的谱图中是否有C-Br键在650-500 cm-1间的特征吸收,从而进行溴系阻燃剂的定性筛选。
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Trans-Blot Cells and Systems 170-3825 Trans-Blot Cell With Wire Electrodes and PowerPac HC Power Supply, 100120/220240 V, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm), power supply, power cord, instructions 170-3850 Trans-Blot System With Plate Electrodes and PowerPac HC Power Supply, 100120/220240 V 170-3853 Trans-Blot System With Plate Electrodes, Super Cooling Coil, and PowerPac HC Power Supply, 100120/220240 V, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm), power supply, power cord, instructions 170-3910 Trans-Blot Cell With Wire Electrodes, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) 170-3939 Trans-Blot Cell With Plate Electrodes and Super Cooling Coil, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) 170-3946 Trans-Blot Cell With Plate Electrodes, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) Trans-Blot Cell Accessories 170-3912 Super Cooling Coil, required for all high-intensity transfers 170-3913 Gel Holder Cassette, includes 2 fiber pads 170-3914 Fiber Pads, 15.5 x 20.5 cm, 6 170-3920 Trans-Blot Standard Wire Electrode Card, cathode 170-3921 Trans-Blot Standard Wire Electrode Card, anode 170-3922 Trans-Blot Cell Buffer Tank 170-3923 Trans-Blot Cell Lid With Power Cables 170-3943 Trans-Blot Platinum Anode Plate Electrode 170-3944 Trans-Blot Stainless-Steel Cathode Plate Electrode 170-3945 Trans-Blot Plate Electrode Pair, platinum anode and stainless-steel cathode 16 规格:说明: Trans-Blot Plus
电泳转印槽组件 1。缓冲液槽及带有电缆的盖 2。凝胶支架转印夹 3。纤维衬垫 4。电极丝 5。电极板 6。特级冷却芯 Trans-Blot 转印槽是功能灵活的转印设备,可理想地用于多种转印应用。Trans-Blot 转印槽特点包括:*能进行多胶转印,可容纳3 块PROTEAN I xi 凝胶、6块Criterion 凝胶、12块Mini-PROTEAN 3 或Ready Gel 预制胶*多组参数灵活可设,可调节的电压设置(从30 V 的过夜转印到200 V 的1 小时快速实验)*电极间距设置为8 cm 用于标准印迹杂交,或设置为4cm 用于高强度印迹杂交*可选择板式电极:涂有铂金的钛作为正极,不锈钢为负极,能提供高强度电场和比其它电极更高的电流密度。或选择较经济的铂金电极丝*通过特级冷却芯和水循环仪来调节温度―是天然酶(4°C)或高强度转印的理想选择,随着转印时间增加(多达24 小时),不会引起缓冲液耗竭(在高强度转印中必须使用冷却芯,也推荐用于所有板式电极的应用)*带铰链的凝胶支架转印夹能避免滑动,确保凝胶与印迹膜间的紧密接触;每个转印夹都有颜色标记以保证在转印槽中的正确定位 Trans-Blot 转印槽的锁闭凝胶支架转印夹系统。转印夹(1)支撑凝胶(2)印迹膜(3)两侧有纤维衬垫和滤纸(4)确保凝胶三明治内的完全接触。凝胶夹垂直插入缓冲液槽中(5)。
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C Diagram of the surgical findings shows that approximately 230 cm of gangrenous jejunum and ileum, located 120 cm from the ligament of Treitz, was herniated through the retrocecal recess.
c手术所见的示意图显示距Treitz韧带120cm的空肠和回肠有约230cm经盲肠后隐窝疝出发生坏疽。
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Rhizomatic biomass percent was highest under -5 cm water level, and after the change of the water regimes through the growing season, C. lasiocarpa undergoing -5 cm water level treatment at beginning or the later growing season, had higher biomass percent.
cm水位条件下,毛苔草根茎生物量占总生物量的比重最大;而且水文情势改变后,无论苗期还是生长季末期,仍以经历-5 cm水位处理的毛苔草根茎生物量比重较大。
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MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.
铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素,耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀,将被部分还原形成Si,Ti向铁浴中扩散,Si、Ti在铁浴中的扩散研究结果是: D〓=1.84×10〓exp(-5988.7/T) cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp(-53225.5/T) cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖,高铝砖,镁砖的侵蚀速度很高,镁碳砖抗侵蚀能力比前几种耐火材料强,但不如铝碳砖;对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相,产生损毁。
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Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15~4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1~2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓~IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.
以丙烯酸丁酯,甲基丙烯酸-β-羟乙酯,丙烯酸及苯乙烯合成厂丙烯酸共聚树脂,并与含-NCO端基的聚氨酯丙烯酸酯接枝反应,经水性化后,得到两个系列(Acr-g-TPU-PETA和Acr-g-PPU-PETA)各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系,粘度与水相近,为牛顿流体,固含量30%左右。光固化前干燥涂膜的玻璃化转变温度在-15℃~4℃之间,有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料,接枝样dTG峰明显宽化,表明接枝样中链段之间的相互作刚有多重性,丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50%~30%者相对较好,且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1~2级,冲击强度为50kg·cm,柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团,碳—碳双键密度太低,光固化膜交联点太少,硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中,不出现色斑,光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜,光泽度及耐丁酮溶剂性能均有所提高,不会诱导铁基生锈,钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色,对光固化涂层的颜色干扰较小,为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出,且对所附着的铁基有诱导锈蚀作用。
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The significant vibration changes occurring in the wavenumber region ranging from about 1200 to 1320 cm-1 seem to be indicative of the formation of a new bond, P-O-C+ or Ga-O-C+.
在吸附碱性品红样品的拉曼光谱中,位于1200 ~ 1320 cm-1范围内的光谱特征表明可能有新的化学键(P-O-C+或Ga-O-C+)形成。
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With the silver colloid, the bands at 732, 960 and 1333 cm-1 for adenine, 1466 cm-1 for deoxyribose, and 1652 cm-1 for the C=O group of thymine are observably enhanced.
实验结果表明,在银胶作为基底的SERS光谱中,归属于腺嘌呤组分的732cm-1、960cm-1、1333cm-1以及归属于胸腺嘧啶C=O基团的1652cm-1的拉曼信号得到明显的增强。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。