Design of Linux password high speed crack model on FPGA

In order to improve the crack speed of linux password, the crack core design idea based on dataflow is proposed. After analyzing core crack module MD5 of linux, three crack models are designed, and their ALMs consumption and run speed are analyzed. Under the structure of full pipeline, based on the idea of dataflow, the Linux crack core is designed to crack linux password fast. Experimental results show that while cracking linux password on FPGA of EP4CE40F29C8, the speed can reach up to 24.95 million/s. In the framework of fully pipeline, the idea based on dataflow makes all the pipeline data blocks in efficient working condition. Linux password crack speed increases greatly.     

Pharmacokinetics, tissue distribution, and the lactone/carboxylate equilibrium of hydroxycamptothecin delivered via aerosol in mice

Aerosol delivery is a route which is advantageous to the therapy of pulmonary diseases, such as lung cancer. The pharmacokinetics and tissue distribution after aerosol delivery of carboxylate form of hydroxycamptothecin (C-HCPT) were investigated. The concentrations of the three different types (lactone, carboxylate and the total of both forms) of HCPT were measured by HPLC analysis. The initial experiment showed no evident difference between lactone and carboxylate in the lungs during the aerosol treatment, compared with the HCPT content in plasma. The AUC(inf) value of lactone in the lungs was higher than that of carboxylate, which was 138,176.00minngg(-1) and 128,460.00minngg(-1), respectively. Meanwhile, AUC(inf) in the plasma during the entire treatment indicated that the lactone content was always at a lower level, and the carboxylate form tended to predominate, as shown by the lactone/carboxylate (L/C) equilibrium. The tissue distribution results showed that the lactone proportion in the liver increased up to the maximum value of 69.69% after aerosol administration, whereas the mean L/C equilibrium index for the liver was 2.07±1.06, and the C(max) and AUC(0-∞) values of the total HCPT were highest in the tissues. Based on these results we speculated that the initial wholly carboxylate form of the HCPT atomized liquid did not influence the transformation to lactone form. Moreover, the deposition of the total HCPT and lactone was higher in the lungs and other tissues than in the plasma after the aerosol treatment. This study will be beneficial to the therapy of pulmonary carcinoma.     

基于风险资产结构不确定性的商业银行整合风险度量研究

基于商业银行风险资产的动态变化性和资产的多重风险属性，结合Copula函数与不确定性理论，设计风险资产结构不确定的商业银行整合风险的度量模型，运用随机模拟、神经网络与遗传算法相结合的求解算法，整合度量中国银行、交通银行和招商银行的市场风险和信用风险，结果表明：模型及求解的方法有效，基于历史数据规律对商业银行整合风险度量，更具优越性和实用性。     

冷熏对高白鲑理化性质及肌球蛋白构象的影响

以新疆塞里木湖高白鲑为研究对象,研究冷烟熏过程对鱼肉理化性质及肌球蛋白构象的影响。冷熏温度为(20±2)℃,发烟温度140℃,冷熏时间分别为0、6、12、18、24 h,研究冷熏鱼肉理化性质(含水率、水分活度、色泽、质构特性、TVB-N)及肌球蛋白构象(蛋白浓度、总巯基含量、Ca^2+-ATPase、表面疏水性)变化。研究结果表明,冷熏0~24h,鱼肉含水率由75.75%下降至53.03%,水分活度(Aw)由0.988下降至0.952;鱼肉亮度值(L^*)显著降低(P<0.05),红度值(a^*)缓慢增加,黄度值(b^*)显著增加(P<0.05);表征鱼肉质构特性的剪切力与韧性均呈明显上升趋势(P<0.05);鱼肉挥发性盐基氮(TVB-N)由9.81上升至14.23 mg/100g;肌球蛋白浓度、总巯基含量、Ca^2+-ATPase活性均显著降低(P<0.05),表面疏水性增加(P<0.05);综上,控制冷熏时间12~18 h有利于提高冷熏鱼肉品质,降低鱼肉肌球蛋白变性与氧化程度。该研究为特色淡水鱼冷熏制品开发与烟熏过程中蛋白氧化调控提供理论依据与技术参考。     

不同施肥对铁观音产量和品质的影响

铁观音乌龙茶以形如"观音"、重如铁,具"观音韵"而蜚声海内外,深受消费者青睐,但由于产量与制优率均较低,影响了铁观音的推广和生产效益的进一步提高.以往研究证明,乌龙茶产量、品质与施肥密切相关,本研究是在已有的基础上进行田间正交试验,旨在进一步验证盆栽试验结果,并探讨影响铁观音茶叶产量、品质的肥料主效因子和有机无机肥配施的优化组合,为铁观音科学施肥提供依据.     

食用仙人掌的离体快速繁殖

仙人掌茎段的腋芽 (刺座芽 )在 MS 6-BA0 .5 mg/L NAA0 .1 mg/L培养基上培养 30 d,可诱导产生 1～ 2个小芽 ,将小芽分切继代培养 ( 2 5 d为 1周期转移培养 1次 ) ,繁殖系数达 3～ 4。芽长2～ 3cm时再切分成单芽 ,在 1 /2 MS NAA0 .1～ 0 .5 mg/L或 IBA1～ 3mg/L 活性炭 0 .2 %培养基上进行生根培养 ,培养 2 5 d,生根率达 85 %以上。移栽成活率 90 %以上     

深圳液化石油气低温常压储存工程可行性分析

深圳液化石油气(LPG)低温常压储存工程拟建4×10~4t丙烷、丁烷储罐各一座,5×10~4t低温常压LPG泊位一座,5000t常温高压LPG泊位两座,总投资1.1亿美元。该工程系中外合资项目,现已开始建设,预计1997年底建成。介绍了该项工程的规划、工艺技术方案、经济分析、环境评价,经过分析比较,选用直接冷却式低温常压储存加工工艺。这种工艺技术在相同储存温度下较间接冷却工艺流程简单、运行管理费用低,采用金属双壁吊平顶储罐,并分析了地震对储罐的影响。该项目技术先进、设备简单、投资省、建设周期短,建成后可提高广东省能源储备,并创造良好的投资环境。     

草菇厚垣孢子研究

本文研究了草菇厚垣孢子的萌发条件及对不良条件的抵抗力.试验结果表明,草菇厚垣孢子萌发最适温度为40℃,培养基PH为7,对培养基的营养状况无要求;草菇厚垣孢子与菌丝体均不耐干旱;菌丝体可耐45℃3d,但50℃处理24h便失活,而厚垣孢子可耐50℃处理24h.在4℃处理14d后,厚垣孢子的萌发率没有下降,而菌丝体完全失活,厚垣泡子耐酸能力比菌丝体强。     

组培苗苗龄对荔浦芋生长及产量品质的影响

通过不同苗龄的组培苗同传统子芋球茎苗生长状况、产量及品质的对比，结果表明：大苗龄组培苗的株高极显著高于子芋球茎苗和小苗龄组培苗，但与中苗龄组培苗无显著差异；大苗龄组培苗产量和子芋球茎苗无显著差异，而中、小苗龄组培苗极显著低于子芋球茎苗；大苗龄组培苗淀粉含量高于中、小苗龄组培苗及子芋球茎苗，但蛋白质含量较低。     

NaCl胁迫下萝卜幼苗根系生理和细胞核形态的变化

以萝卜幼苗为材料,研究了0.15 mol/L NaCl胁迫处理不同时间其根系的生长速度、活力、过氧化物酶(POD)活性和相对电导率的变化,并观察了根尖细胞核形态的变化.结果表明,随着NaCl胁迫时间的延长,萝卜幼苗根系生长速度减慢,根系活力降低,胁迫时间超过48 h时,二者均迅速下降,表现得更为明显;萝卜幼苗根系POD活性和相对电导率则不断增大,胁迫48 h时达到最大,之后POD活性迅速降低,相对电导率随之降低;根尖细胞核由原来规则的圆形转变为各种不规则形状,出现不同程度的凋亡特征.