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The direct incorporation of U-13C glucose was estimated by the intensity increase of m/z to F(F was parent fragment, and n was the carbon number in the fragment), while the total isotope incorporation from the added 13C could be calculated according to the abundance ratio increment summation from m/z (Fa+1) through (Fa was the fragment containing all original skeleton carbons, and T was the carbon number in the amino acid molecule). The 13C enrichment in the target compound was expressed as atom percentage excess, and that of D-amino acid needed to be corrected by the coefficient of hydrolysis-induced racemization. The 13C enrichment reflected the carbon turnover velocity of individual amino acid enantiomers, and was powerful to investigate the dynamics of soil amino acids.

外加葡萄糖直接合成氨基酸的比例可利用质谱碎片的相对强度变化来评价（n为质谱碎片F中含有的碳原子数目）；而源于葡萄糖的13C同位素在氨基酸分子中的富集程度是所有同位素峰相对强度变化的总和。13C在目标化合物中的富集比例用原子百分超评价，D氨－基酸的APE还需进一步利用水解诱导的外消旋化系数校正。13C在目标化合物中的富集程度可反映各氨基酸手性异构体的碳循环速率大小，是研究土壤氨基酸动态变化的有力工具。

He felt at ease and c o n f i d e n t in the future.

他心情舒坦并对未来抱有信心。

1 At a reaction temperature of 100 ℃ and a reaction time of 30 min to give 2,which was then subjected to condensation reaction with p-propoxy mandelic acid in the presence of phosphoric acid at a molar ratio of m(2)∶m( p-propoxy mandelic acid )∶m=1∶1∶1 at a reaction temperature of 60 ℃ for 3 h to yield 3,which was further oxidized by chloranil to give t.

对现有分散红356合成工艺进行了优化，以n∶n=1.2∶1投料，100℃反应30 min得缩合物2，再在等质量磷酸催化下与分批加入的等质量对丙氧基扁桃酸60℃缩合3 h得缩合物3，经温和氧化剂四氯苯醌氧化得标题化合物，总收率55%。

Wbe a complete convex metric space ,T be a beneral quasi-contractive mapping satisfying certain condition and {x n}be the Ishikawa type iterative sequence with errors of T.

设是完备的凸度量空间，T ：E→E是广义拟—压缩映象，{xn}为T的带误差项的Ishikawa迭代序列。

In Chapter 2 and Chapter 3, we give the solutions of integral form on Orbifold T2/ZN(N = 3,4,6).These solutions include all the projection operators which have minimal trace and the induced matrices of which are continuous functions of kq. In terms of this kind of solution one can construct various closed form of solutions.

在第二章和第三章中我们给出了T~2/Z_N(N=3，4，6)上的以积分形式表达的解，这些解包括所有具有最小迹且诱导矩阵是kq参量连续函数的投影算子，并且可以由它进而构造各种有限形式的解。

Medicare's prospective payment system and Medicaid's policy of deinstitutionalization have apparently substantially increased the clinical needs of patients entering nursing homes.2,3 Consequently, the nursing h o m e is expanding its role in patient care and has b e c o m e an integral c o m p o n e n t of the health care system.4 Patients in skilled nursing facilities suffer from numerous problems: incontinence; mental impairment; difficulties with one or more activities of daily living; immobility and falling episodes; and malnutrition.l.3,6There is a high rate of acute illness superimpose don multiple medications and several simultaneous chronic illnesses.

医疗保险的潜在支付系统和医疗补助的政策，非机构化，显然大大增加了患者的临床需要进入护理homes.2 ， 3因此，养老院正在扩大其作用，病人护理，并已成为一个不可分割的组成部分保健system.4

We give a theorem for the stable range of endomorphism rings of finitely generated projective modules over a formal triangular matrix ring T when T is an exchange ring.

2.6节对有有限exchange性质的形式三角矩阵环T给出了有限生成投射T-模的自同态环有稳定度n的一个具体关系。

It was concluded that figwort didn't adapt to N and K, while P affected the output of figwor greatly.

玄参对N肥和K肥的耐受力差，施用P肥对其产量影响较大。

In particular, it is difficult to prove the Frechet differential for the semigroup {S}_(t≥0) in L~(2p) directly.

R~n(n≥3)是有界光滑区域，p≥2，初始值u(0)∈L~2，外力项g∈L~2，且非线性项f∈C~2满足我们在空间L~(2p)证明了指数吸引子的存在性。

The resistivity anomalies for p retatio n result s for CSAM T survey co nducted fo r t he t unnel is illust rated.

就隧道主要特殊岩层膏溶角砾岩的地球物理异常特征进行了详尽分析，给出了 CSAM T 法在本区隧道结构面综合地质解释结果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。