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排序方式: 共有661条查询结果,搜索用时 317 毫秒
91.
92.
Tomomichi Okano Naoyuki Egawa Masami Fujiwara Masahiro Fukuda 《Journal of the American Oil Chemists' Society》1996,73(1):31-37
Sodium α-sulfonated, fatty acid polyethylene glycol monoesters [C
m
H2m+1CH(SO3Na)COO(C2H4O)
n
H] and diesters [C
m
H2m+1CH(SO3Na)COO(C2H4O)
n
COCH(SO3Na)C
m
H2m+1], wherem=10–16 andn=1–35, were prepared by esterification of α-sulfonated, fatty acids with polyethylene glycols, followed by neutralization
with NaOH. Crude products were purified by reversed-phase column chromatography on an octadecyl-modified silica gel. Characteristic
solution behavior of these α-sulfonated fatty acid esters was, examined, and the following features were observed. All monoesters
prepared in this work had Krafft points below 0°C and also possessed good calcium stabilities. Critical micelle concentrations
of the monoesters increased monotonously, as a rule, with an increase in the number of oxyethylene units. These results suggest
that the polyethylene glycol residue of the monoester behaves as a hydrophile. On the other hand, diesters possessed high
water solubility, low foamability, and critical micelle concentrations that were lower by a factor of ten compared to those
of the monoesters. 相似文献
93.
Tsuyoshi Nishi Akinori Itoh Masami Numata Yasuo Arai 《Journal of Nuclear Materials》2008,377(3):467-469
The heat capacities of NpN and AmN were determined with the drop calorimetry method. The NpN and AmN samples were prepared by the carbothermic reduction of the respective dioxides. The heat capacity of NpN obtained was in good agreement with the reported values in the temperature range from 334 to 1067 K, which was close to those of UN and PuN. The heat capacity of AmN was obtained experimentally for the first time, which was slightly smaller than those of UN, NpN and PuN in the temperature range from 354 to 1071 K. 相似文献
94.
Akemi K. Horigane Masami Kawabuchi Satoshi Uchijima Mitsuru Yoshida 《Food research international (Ottawa, Ont.)》2009,42(1):41-50
The effect of seasonings on the texture of cooked spaghetti was examined by sensory and shearing tests. Spaghetti tossed with sucrose, trehalose, salt, and monosodium glutamate and their mixture retarded deterioration of the firmness of spaghetti strands. To investigate the penetration of water and seasonings, maps of spin–spin relaxation time and their profiles from the center to the surface of a spaghetti strand were acquired by magnetic resonance imaging. The homogenization of moisture distribution in cooked spaghetti during holding was delayed temporarily by salt owing to a back current caused by the gradient of salt content on the surface immediately after tossing. Monosodium glutamate rapidly penetrated into spaghetti strands and caused water T2 decrease possibly owing to the decreased mobility of water molecules in starch gel, whereas the sweeteners hardly altered the T2 maps. Salt and monosodium glutamate are considered to retard more effectively the deterioration of firmness of spaghetti. 相似文献
95.
96.
T Hirota T Honjo R Kuroda K Saeki N Katano Y Sakakibara H Shimizu T Fujimoto 《Canadian Metallurgical Quarterly》1993,20(15):2369-2373
A crossover clinical trial was carried out to compare the effectiveness and safety of granisetron alone (40 micrograms/kg) with that from a combination of granisetron plus methylprednisolone (MPL, 10 mg/kg) for control of emesis and vomiting induced by anticancer drugs in children with cancer. Complete control of emesis and vomiting were achieved in 95% (19/20 cases) of patients receiving the combination compared to 85% (17/20 cases) of patients receiving granisetron alone. There were no clinical toxicities or side effects in either treatment group. These data indicated that the combination of granisetron plus MPL was superior for control of emesis and vomiting in children receiving cytostatic anticancer drugs. 相似文献
97.
98.
Saeki T. Kasai N. Itani T. Nishimoto S. Fukuzo Y. 《Semiconductor Manufacturing, IEEE Transactions on》1996,9(1):136-142
This paper describes the yield enhancement effects of a boosted dual word-line (BDWL) scheme for the first Al wiring in high density DRAMs, with a defect density model and a yield model used for comparison with that of the commonly used word-shunt (WS) scheme. Additionally, the yield of first Al wiring with a step height between memory cell array and peripheral circuit regions is also estimated. The yield estimation demonstrated that the yield enhancement effect of the wide first Al wiring for the BDWL scheme was comparable with or surpassed that of the redundancy for the WS scheme yield, when the first Al wiring pitch over the memory cell array or a BDWL scheme was over 4 times wider than that of the WS scheme. The yield estimation with step height indicated that the first Al wiring yield of the BDWL scheme with the step height exceeded that of the WS scheme with the step height of zero, even if using some global planarization technology 相似文献
99.
Shozo Takata Masami Ogawa Peter Bertok Junro Ootsuka Katsumori Matushima Toshio Sata 《Robotics and Computer》1985,2(1):33-40
In this paper, a real-time monitoring system of tool breakage, which measures the cutting torque from the spindle motor current, is described. The system uses an auto-regressive (AR)-model which is adapted for the measured signal using the Kalman filtering technique. The tool breakage is detected by monitoring the residual, that is, the deviation of the observed signal from the estimated value obtained by the AR-model. Additional processing of the residual is introduced to discriminate the signature of tool breakage from the effect caused by the marked change in the cutting condition. To reduce the computation time, the fast calculation algorithm is adopted for estimating the coefficient vector of the AR-model. The monitoring experiment has proven the effectiveness of the system in a milling operation. 相似文献
100.
Masami Saeki 《国际强度与非线性控制杂志
》1995,5(7):615-625
》1995,5(7):615-625
In order to recovery robust stability of a desirable state feedback system by output feedback, the desirable complementary function is approximated by a modified complementary function of the output feedback system by solving an ??∞ norm-minimization problem. The modified complementary function is obtained by getting rid of non-minimum phase factors from the complementary function. Numerical examples show the superiority of this method to LQG/LTR method and other methods. 相似文献