The oxazolophenazine 2 was prepared by cyclocondensation of compound 1 and aceticanhydride. The synthesis of oxazolophenazine (3a-d) was acheived by the oxidative addittion of phenazine 1 with aromatic aldhyde. The addition of compound 1 to the activated acrolene furinsed the oxazine derivative 4. Alkylation followed by cyclization of compound 1 using phenacyl bromide and/or ethyl acetochloroacetate yielded oxazine cylization affording 5 and 6 respectively. The cyclocondensation of compound 1 with cyanoacetamide afforded pyrrolophenazine 7. The oxazine 8 was genarated by alkylation of compound 1 in pyridine followed by cyclization. Antifungal activity was screened for three compounds 6, 7 and 8 with two fungal species Candida albicans and Aspergillus niger. The three tested compounds 6, 7 and 8 had different antifungal activities against the two tested fungal strains.
This research aims to develop and use solar energy to assist the cooling and cooling system in the vehicle, use solar cells to generate electricity, transfer its energy to the lead storage battery in the vehicle, and control the cooling chip through the adaptive control system circuit to make the temperature cold end. The power consumption is adjusted with the set temperature, solar power generation and battery power, and the hot-end cooling fan can start running with the preset temperature and control the power to reduce the overall power consumption. This system also enables the vehicle to reduce the temperature inside the vehicle while the vehicle is stopped and does not start the engine. The system has low power consumption and can reduce the lead battery power consumption. Designed control system also can monitor the battery charge of the vehicle and avoid the battery overcharging, causing the vehicle to fail to start. In addition, the system uses PSOC programmable control chip and LM35 temperature detector to complete PWM adaptability to reduce the power consumption of the overall system.
Purpose: Gibberellins (GA3) are plant hormones that regulate seed germination, vegetative growth and reproductive development of plant during its entire life cycle by degrading DELLA proteins. Here, we studied six cultivars of winter oilseed rape, namely Fu-You 4, Luo-Jing, Mei-Jian, S-205, Xin-yang 7833, and Y-135, to examine the effects of exogenous gibberellins on inflorescence development time, morphology of floral organs, expression pattern of putative homeotic genes and GA-responsive genes.\nMethodology: The shift in flowering time varied from 0.6 to 2.6 days among the 6 winter rapeseed cultivars, however, some cultivars did not show significant differences and others were different significantly in flowering time such as Xinyang 7833, S-205, Mei-Jian and Fu-You 4. The exogenous GA3 (50μM) contributed to the regulation of flower opening, stamen filament elongation and filament epidermis cell elongation. Further, we studied the respective relative GA-responsive gene transcript levels in different tissues after exogenous GA3 application. \nResults: The results demonstrated, exogenous GA3 regulated the expression of some floral homeotic genes (BnAG1, BnAP3, and BnPI3) and some GA-responsive genes that caused abnormalities in the floral organs throughout later flower development stages. These results will be helpful for the basic knowledge to clarify signaling roles of GA3 in inductive pathways of flowering in oilseed production.
A common wheat variety has varying responses to irradiation. The aim of this study was to determine the effects of low doses of gamma rays on wheat grains by evaluating the growth, yield components, and biochemical aspects. The seeds of a common wheat variety (Anza) were irradiated with low doses of gamma rays (0.10, 0.15and 0.20 KGy), while non-irradiated seeds were used as a control. The experiment focused on the physiological, morphological, and biochemical aspects of irradiated and control wheat.Theresultsshowed that the highest stem height was in the control group, while the highest emergence rate was observed at 0.20 KGy. At this dose, there was also an improvement in the spike length, number of spikes/m2, number of grains/spike, 1000-grain weight, and grain yield. The water, protein, and starch content conformed to standards. The physiological aspects of common wheat were improved and the biochemical qualities were maintained throughout the use of low doses of gamma rays.
Background: Minimally invasive dentistry advocates the use of dental materials with adhesive properties; aims to provide means for remineralization of dental tissue damaged by caries and to prevent the progression of initial caries in order to promote maintenance and longevity of dental elements in the mouth. Glass ionomer cement is a prominent material in the current dentistry, because it added favorable physical and biological properties, which were not obtained with other materials. Thus, one of the main objectives of restorative dentistry is the preservation of healthy dental tissues as well as the restoration of lost tissue seeking, through the use of suitable materials and well-conducted techniques, to avoid recurrences or even the appearance of new caries. Objective: was to provide a literature review on the main findings of the use of glass ionomer cement in dental restorations. Methods: A total of 82 articles were found involving. Initially, it was held the exclusion existing title and duplications in accordance with the interest described this work. After this process, the summaries were evaluated and a new exclusion was held. A total of 60 articles were evaluated in full, and 26 were included and discussed in this study. Major objectives and conclusion: The objectives of restorative treatment in deciduous teeth with glass ionomer cements are to repair or limit damage caused by dental caries, to protect and preserve dental structures, to restore proper function, to restore aesthetics (when appropriate) , and provide a condition that facilitates the maintenance of good oral hygiene. It is imperative whenever the dental surgeon remembers that pulp vitality should be maintained whenever possible.
Combustion in direct injection diesel engine is closely related to the transient behavior of the fuel air mixing processes, including atomization and vaporization at the spray edge. Design of IC engine is the complex in fluid dynamics of turbulent reacting flows inside the engine cylinder and piston bowl. This were carried for in cylinder flow analysis using Ansys 14.5 for two shapes of the piston bowl of Spherical bowl (SB) and Toroidal bowl (TB) in a single cylinder compression ignition engine. The air swirl is initiated inside the cylinder by the design of inlet manifold, inlet valve in addition to shape of the piston bowl. The cylinder flow parameters swirl motion, in cylinder flow motion, velocity and temperature contour have been analyzed. The air and fuel mixture is to take complete combustion in cylinder flow motion for tumble and turbulent created by the centre of piston bowl shape. The two dimensional, thick spray model to analyze fuel vaporisation in the spherical bowl chamber of DICI engine showed that an increase in the vaporisation rate does not necessarily imply an increase in the fuel-air mixing rate. Also showed that vaporisation of fuel and combustion in spherical bowl can be controlled by mixing rather than toroidal bowl.
