1—（2—溴—5—噻吩基）甲基—2—硝基亚氨基咪唑烷的合成及其生物活性的研究

合成了1－（2－溴－5－噻吩基）甲基－2－硝基亚氨基咪唑烷，并利用IR、MS、^HNMR表征其结构。生物活性初步研究表明，该化合物具有一定的杀虫活性。     

1-(4-氯苄基)-2-硝基亚氨基-咪唑烷的合成及其生物活性初步研究

合成了1－（4－氯苄基甲基）－2－硝基亚氨基咪唑烷，并利用IR，MS，1HNMR表征了其结构，生物活性初步研究表明，该化合物具有一定的杀虫活性，是一种合格的家药先导化合物。     

絮凝—缓蚀—阻垢剂GMT—A缓蚀,阻垢机理

通过交流阻抗、电子扫描显微镜等测试手段，研究了药剂ＧＭＴ－Ａ的缓蚀、阻垢机理。结果表明，ＧＭＴ－Ａ的缓蚀机理是药剂在金属表面的吸附成膜及其补膜作用；阻垢机理是ＧＭＴ－Ａ螯合了成垢离子及使垢层发生了晶格畸变作用。     

聚合氯化铝对碳钢的腐蚀性及与药剂GMT—A配伍性的研究

本文研究了在工业水处理中聚合氯化铝对碳钢的腐蚀性及与药剂ＧＭＴ－Ａ配伍使用时，对ＧＭＴ－Ａ的絮凝，缓蚀效果的影响，从而确定了与ＧＭＴ－Ａ配伍使用时聚氯化铝的最佳投加量。并进一步探讨了聚合氯化铝产生腐蚀作用及ＧＭＴ－Ａ缓蚀效果的影响原因。     

絮凝──缓蚀──阻垢剂GMT－A缓蚀、阻垢机理

通过交流阻抗、电子扫描显微镜等测试手段，研究了药剂ＧＭＴ－Ａ的缓蚀、阻垢机理。结果表明，ＧＭＴ－Ａ的缓蚀机理是药剂在金属表面的吸附成膜及其补膜作用；阻垢机理是ＧＭＴ－Ａ螯合了成垢离子及使垢层发生了晶格畸变作用。     

絮凝—缓蚀剂CMT—A2的应用性能研究

以油田含油污水为处理对象，系统研究了药剂ＣＭＴ－Ａ２在不同条件下的絮凝，缓蚀效果。絮凝实验结果表明２×１０＾－６ＣＭＴ－Ａ２和３×１０＾－６ＰＡＣ配伍使用处理模拟含油污水，３０分钟静置沉降后处理水残留浊度＜１ｍｇ／Ｌ。动态实验结果证实ＣＭＴ－Ａ２具有良好的抑制点蚀和均匀腐蚀的能力。因此ＣＭＴ－Ａ２是一种兼具絮凝，缓蚀双重功效的新型工业水处理药剂，有可喜的应用前景。     

2—{4—[2—（吩恶嗪—10—基）乙氧基]苄基}—丙二酸二甲酯的合成

2-{4-[2-(吩恶嗪－10－基）乙氧基]苄基}－丙二酸二甲酯是一种对Ⅱ型糖尿病有较高活性的化合物，活性较市场上药效最好的罗格列酮高，且具有PPARα、PPARγ双活性。文献报道的合成方法，使用了2－溴乙醇、对卞氧基苯甲醛等价格昂贵、不易获得的原料，且反应过程需要高压条件。作者引入了相转移催化方法，所用原料为1，2－二溴乙烷等，价格便宜，且易于获得，反应条件为常温常压，降低了生产成本。     

新型高效杀虫剂NI—25

对杀虫剂ＮＩ－２５有效成份Ａｃｅｔａｍｉｐｒｉｄ的理化性质和对人畜的安全性，Ａｃｅｔａｍｉｐｒｉｄ及其中间体合成方法进行了概述。介绍了ＮＩ－２５独特的作用机理和应用特点，并对国内开发ＮＩ－２５的可行性进行了简单分析。指出了ＮＩ－２５是９０年代防治对传统杀虫剂已产生抗性害虫的一种理想药剂，具有广阔的开发前景。     

新型高效杀虫剂NI-25

对杀虫剂ＮＩ－２５有效成份Ａｃｅｔａｍｉｐｒｉｄ的理化性质和对人畜的安全性，Ａｃｅｔａｍｉｐｒｉｄ及其中间体合成方法进行了概述。介绍了ＮＩ－２５独特的作用机理和应用特点，并对国内开发ＮＩ－２５的可行性进行了简单分析。指出了ＮＩ－２５是９０年代防治对传统杀虫剂已产生抗性害虫的一种理想药剂，具有广阔的开发前景。     

聚合氯化铝对碳钢的腐蚀性及与药剂GMT－A配伍性的研究

本文研究了在工业水处理中聚合氯化铝对碳钢的腐蚀性及与药剂ＧＭＴ—Ａ配伍使用时，对ＧＭＴ－Ａ的絮凝、缓蚀效果的影响，从而确定了与ＧＭＴ－Ａ配伍使用时聚氯化铝的最佳投加量。并进一步探讨了聚合氯化铝产生腐蚀作用及ＧＭＴ－Ａ缓蚀效果的影响原因。     

A Review of Contemporary Views of Theories of Adhesion

The once distinct and independent theories of adhesion have been losing their isolation and converging. Ideas of the effects of surface roughness, once dismissed as irrelevant except in the case of textiles, have been revised; albeit on a smaller scale as details of surfaces have been revealed by sophisticated techniques. Electrostatic interactions across an interface have been more deeply explored and their significance recognised and expounded. Diffusion of groupings and chain segments within a polymer have been related to the possibilities of interaction with a variety of surfaces. Perhaps most important, theories of adsorption have been extended in depth. The precise nature of the molecular interactions have been recognised and quantified. In doing this the contribution of diffusion and elastoplastic phenomena have been integrated. These developments are collated and analysed to present the present understanding of the concepts.     

A Review of Contemporary Views of Theories of Adhesion

The once distinct and independent theories of adhesion have been losing their isolation and converging. Ideas of the effects of surface roughness, once dismissed as irrelevant except in the case of textiles, have been revised; albeit on a smaller scale as details of surfaces have been revealed by sophisticated techniques. Electrostatic interactions across an interface have been more deeply explored and their significance recognised and expounded. Diffusion of groupings and chain segments within a polymer have been related to the possibilities of interaction with a variety of surfaces. Perhaps most important, theories of adsorption have been extended in depth. The precise nature of the molecular interactions have been recognised and quantified. In doing this the contribution of diffusion and elastoplastic phenomena have been integrated. These developments are collated and analysed to present the present understanding of the concepts.     

Mixing effects and hydrodynamics of vortex rings

Vortex rings have been formed in water by impulsive flow through an orifice, and mixing effects due to the lings have been measured. Laboratory tests on the mixing of stratified layers of salt solution by vortex rings formed at a 6.35 cm diameter orifice have indicated that Froude number is an important factor in determining the energy efficiency of mixing. Field tests using a 25.4 cm orifice in Hamilton Harbour (18 m depth of water) have shown a small mixing effect. Further experiments with a 25.4 cm orifice in a test tank have shown that the vortex rings have a range of at least 30 m.     

The Application of Biocatalysis in the Preparation and Resolution of Morita-Baylis-Hillman Adducts and Their Derivatives

The Morita-Baylis-Hillman (MBH) reaction affords highly functionalised allylic alcohols containing a new stereogenic centre. These MBH adducts are very versatile and have been transformed into a large range of products, some of which have medicinal potential. Several examples of asymmetric syntheses of MBH adducts have been reported, although a generally applicable method remains to be developed. Biocatalytic approaches for the synthesis and enzymatic kinetic resolution of MBH adducts have been reported, and are discussed in detail in this review. Enzymes able to catalyse the asymmetric MBH reaction have been identified, but selectivity and efficiency have generally been low. Lipases, esterases and nitrile-converting enzymes have all been successfully applied in the resolution of MBH adducts, with excellent selectivity being realised in most cases.     

Décantation assistée par ultrasons des eaux résiduaires

The impact of ultrasound on settling in water treatment has been studied. The effects already measured of ultrasound on the settling properties of various effluents have been identified and these effects have been observed in a static and a dynamic study. Sonification conditions suitable for optimizing such a process have been determined. The results show the primary role that stationary wave systems have in the settling of effluents (flocculated or not, synthesized or real). With flocculated effluents, a true impact on settling can be observed.     

Microstructure and Crystallography of Titanium Nitride Whiskers Grown by a Vapor–Liquid–Solid Process

Titanium nitride whiskers having diameters of 0.5 to 1.5 μm and aspect ratios in the range of 20 to 50 have been produced by a new commercially scalable vapor–liquid–solid process. Electron microscopy studies have shown that most of the whiskers can be classified into two types based upon structure and morphology. The whiskers of one type are single crystals and have a growth direction of (100). Whiskers of the second type are comprised of two crystals having a common (110) growth direction. Both types have smooth surfaces and relatively few internal defects. Additionally, a small percentage of whiskers have considerable internal structure related to significant magnesium impurities.     

Discrete Element Method Simulation of Effect of Aggregate Shape on Fragmentation of Particle Composite

How primary particles affect the fragmentation of particle composites using discrete element method simulation is described. Disk‐shaped composite particles consisting of large aggregate particles embedded in a matrix of smaller sand particles have been impacted against a solid surface at range of collision velocities. The results have been analyzed to determine whether the shapes of the aggregates in the mixture have an influence on the fragmentation of particle composites. It has been identified that the fracture depends on the aggregate shapes of the particle composites. Liberation degrees and particle size distributions have also been found to be controlled by the shape of the primary particles. Particle shapes have a remarkable influence on the fragmentation behavior of the specimen, especially at lower velocities.     

Study of modal parameters and vibration signatures of notched concrete prisms

In the present study, vibration tests have been carried out on notched concrete prisms. The tests have been conducted to study modal parameters and vibration signatures in order to enhance the knowledge of monitoring concrete structures. Notch (artificially introduced crack) of constant widths and varying depths has been introduced in the concrete prisms at different locations. The specimens have been subjected to impact excitations by dropping a specific weight from a fixed height and at a particular location. The natural frequencies of notched and intact prisms have been experimentally measured. The frequency response functions (FRF) as obtained from multichannel pulse analyzer have been synthesized to evaluate the fundamental mode shape of vibration of the prisms by a curve fitting method. These curves have been further post-processed to obtain the modal curvature values. Pattern Recognition Scheme is applied to synthesize vibration signatures for the evaluation of the curvature differential values. The curvature differential values corresponding to different sensor locations in both intact and notched specimens have been obtained. Experimental results with different depth of flaws suggest that natural frequency alone cannot be a reliable parameter for the detection of damage in concrete beams with shallow depth of flaws. The modal curvature values have been found to be a reasonably good indicator of the location of the damage. The curvature differential values show the extent of damage but found to be dependent on the sensor location from the position of notch.     

Electronic structure and transport properties of carbon nanotube adsorbed with a copper chain

The authors have studied the electronic structure and transport properties of hybrid nanowires made of a copper chain adsorbed on a single-wall carbon nanotube (CNT) using first principle methods. Results have shown that after the adsorption of the Cu chain, the density of states and the transmission coefficients of the CNT (5, 5)/Cu nanowire have been increased, while the band gap of CNT (10, 0)/Cu have been significantly reduced. These results imply that the conductivity of CNTs, either metallic or semiconducting, have been enhanced by the adsorption of a copper chain. These hybrid nanowires with enhanced conductivity may be suitable for nanoelectronics.     

The Future of Aminoglycosides: The End or Renaissance?

Although aminoglycosides have been used as antibacterials for decades, their use has been hindered by their inherent toxicity and the resistance that has emerged to these compounds. It seems that such issues have relegated a formerly front‐line class of antimicrobials to the proverbial back shelf. However, recent advances have demonstrated that novel aminoglycosides have a potential to overcome resistance as well as to be used to treat HIV‐1 and even human genetic disorders, with abrogated toxicity. It is not the end for aminoglycosides, but rather, the challenges faced by researchers have led to ingenuity and a change in how we view this class of compounds, a renaissance.