Have you ever wondered what it takes to be an astronaut?Let's hear about retired astronaut Scott Kelly's experiences in space to get the answer to that question.Kelly graduated from college with an engineering...Have you ever wondered what it takes to be an astronaut?Let's hear about retired astronaut Scott Kelly's experiences in space to get the answer to that question.Kelly graduated from college with an engineering degree in 1987.He was later accepted into Navy flight school,and selected to attend the United States Naval Test Pilot School.展开更多
Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategie...Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategies.As a maritime military force,the navy bears considerable responsibilities of safeguarding territorial sovereignty,maritime rights and interests with security and development as core mission,and defending the role and image of China as a major county in the world.This paper analyzes and studies naval officers’global competence development from three aspects,and discusses the significance and recommendations of strengthening the development of naval cadets’global competence in cooperation and exchange guided by“Belt and Road”Initia⁃tive(BRI).展开更多
Through the experience of being stationed on the USS Mercy hospital ship(T-AH19) and a preliminary comprehension of the personnel and material arrangements,processing and functional formats,and the multi-platform cont...Through the experience of being stationed on the USS Mercy hospital ship(T-AH19) and a preliminary comprehension of the personnel and material arrangements,processing and functional formats,and the multi-platform contributions of US Navy hospital ships,we briefly introduce the characteristics of US hospital ships regarding medical support,emergency rescue exercises,communications and training,international humanitarian aid,etc.We discuss the function and responsibility of Chinese hospital ships,focusing on the investigation of the construction mode and positioning in the navy.展开更多
The risks in development of navy vessels were explored, The resources of technical risk in the design and development of vessels were mentioned, It was pointed that technical risk dominated the other risk components. ...The risks in development of navy vessels were explored, The resources of technical risk in the design and development of vessels were mentioned, It was pointed that technical risk dominated the other risk components. Based on the writers＇ understanding and experience from risk analysis and risk ,nanagement to the development of a navy vessel, four measure indexes of technical risk were presented. The decision criteria and the rules corresponding to the indexes were estahlished by the statistic information,展开更多
Naval cohorts rely heavily on personnel to ensure the efficient running of naval organisations. As such, the wellbeing of personnel is essential. In an occupational setting, naval service personnel experience a variet...Naval cohorts rely heavily on personnel to ensure the efficient running of naval organisations. As such, the wellbeing of personnel is essential. In an occupational setting, naval service personnel experience a variety of physiological and psychological stressors. Most naval services arrange annual physical fitness and body composition tests to ensure the physical readiness of personnel. However, these tests only evaluate a small amount of physiological capabilities. Components such as aerobic and strength capabilities are assessed, however, other components of physical fitness such as speed, agility, anaerobic capacity and flexibility are not. In addition to the physical capabilities, personnel are impacted by fatigue, nutrition and psychological stressors such as copping in stressful situations or dealing with time away from family and friends. This review will discuss the physiological and psychological factors that affect personnel's wellbeing. In addition to this, it will also evaluate the methods that are used to assess both physiological and psychological wellbeing.展开更多
Water pollution with dye chemicals from apparel industries is a serious problem in the world.Since most of dyes are potentially have toxic and carcinogenic effects on human,it is important to remove them before they a...Water pollution with dye chemicals from apparel industries is a serious problem in the world.Since most of dyes are potentially have toxic and carcinogenic effects on human,it is important to remove them before they are discharged to the environment.Among many methods available for dyes removal in water,adsorption is the easiest and economically feasible that has no major obstacle for practical applications.In the present study,we tested calcined Mg/Al hydrotalcite(Mg/Al CHT)prepared by coprecipitation technique as an adsorbent for the removal of Navy Blue(NB)and Yellow F3G(YF3G)dyes.Mg/Al CHT was characterized by using a Fourier transform infrared(FTIR)spectrometer,an X-ray diffractometer(XRD)and a scanning electron microscope(SEM).The results showed that Mg/Al CHT was highly effective as an adsorbent for the removal of NB and YF3G under mild-acidic condition(pH 4)with removal capacities(b)according to Langmuir isotherm model were 7.97×10^(–4) and 5.80×10^(–4)mol·g^(-1),respectively.Kinetics study showed that the adsorption of NB and YF3D on Mg/Al CHT followed pseudosecond order with rate constant(k_(p2))11.57×10^(3) and 11.75×103 g·mol^(-1)·min-1,respectively.The spent adsorbent can be easily regenerated by simply calcining it at 450℃ for 3 h.Adsorption test on the mixture of NB and YF3G showed that the adsorption capacity of Mg/Al CHT was eightfold higher than that of Mg/Al HT and the value was maintained with repeated use.展开更多
Halosulfuron was recently registered as the second soil-applied herbicide for broadleaf weed control in Ontario dry beans, but does not provide an alternative mode of action. Sulfentrazone is used to control broadleaf...Halosulfuron was recently registered as the second soil-applied herbicide for broadleaf weed control in Ontario dry beans, but does not provide an alternative mode of action. Sulfentrazone is used to control broadleaf weeds in soybean and other pulse crops, and its registration for Ontario dry beans would provide a different mode of action for broadleaf weed control. Five field studies were conducted over two years (2014, 2015) to determine if the spectrum of broadleaf weed control is improved by adding a half-rate of halosulfuron to sulfentrazone PRE, and to determine the tolerance of white bean to sulfentrazone (140 or 210 g ai ha-1), s-metolachlor (1050 g ai ha-1), and halosulfuron (17.5 g ai ha-1) applied alone and in combination. Crop injury was assessed at 2 and 4 weeks after crop emergence. Weed control was assessed at 4 and 8 weeks after herbicide application (WAA), and weed density and biomass were determined at 8 WAA. Seed moisture and yield were determined at harvest. Halosulfuron added to sulfentrazone improved the control of Ambrosia artemisiifolia and Sinapis arvensis. Sulfentrazone + s-metolachlor + halosulfuron caused up to 23% crop injury. Therefore, this study concludes that sulfentrazone + s-metolachlor + halosulfuron provides broad spectrum weed control, but is too injurious to white bean for registration in Ontario.展开更多
There are a limited number of herbicides registered for weed management in white bean production in Ontario, Canada. Five field experiments were completed in Ontario from 2016 to 2018 to compare the efficacy of triflu...There are a limited number of herbicides registered for weed management in white bean production in Ontario, Canada. Five field experiments were completed in Ontario from 2016 to 2018 to compare the efficacy of trifluralin and ethalfluralin applied alone and in combination with halosulfuron, applied preplant incorporated (PPI), for weed control efficacy and white bean tolerance and seed yield. At 2 and 4 WAE, there was no white bean injury from the herbicide treatments evaluated. Trifluralin applied PPI provided up to 32%, 99%, 13%, 99%, 27%, 99% and 99% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Trifluralin and ethalfluralin provide similar control of velvetleaf, redroot pigweed, barnyardgrass and green foxtail control, however, ethalfluralin is slightly more efficacious on common ragweed, common lambsquarters and wild mustard. Halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>), applied PPI, provided as much as 76%, 98%, 96%, 96%, 100%, 19% and 23% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Trifluralin (600 or 1155 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) + halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>), applied PPI, provided up to 88%, 100%, 98%, 100%, 100%, 99% and 98% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Ethalfluralin (810 or 1080 ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) + halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) provided similar control. Weed interference decreased white bean seed yield 44% - 45% with trifluralin, 30% - 41% with ethalfluralin and 34% with halosulfuron. However, decreased weed interference with trifluralin and ethalfluralin applied in combination with halosulfuron resulted white bean seed yield that was similar to the weed-free control. Trifluralin or ethalfluralin co-applied with halosulfuron can be safely used in white bean production for the control of common annual grass and broadleaf weeds in Ontario.展开更多
文摘Have you ever wondered what it takes to be an astronaut?Let's hear about retired astronaut Scott Kelly's experiences in space to get the answer to that question.Kelly graduated from college with an engineering degree in 1987.He was later accepted into Navy flight school,and selected to attend the United States Naval Test Pilot School.
文摘Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategies.As a maritime military force,the navy bears considerable responsibilities of safeguarding territorial sovereignty,maritime rights and interests with security and development as core mission,and defending the role and image of China as a major county in the world.This paper analyzes and studies naval officers’global competence development from three aspects,and discusses the significance and recommendations of strengthening the development of naval cadets’global competence in cooperation and exchange guided by“Belt and Road”Initia⁃tive(BRI).
文摘Through the experience of being stationed on the USS Mercy hospital ship(T-AH19) and a preliminary comprehension of the personnel and material arrangements,processing and functional formats,and the multi-platform contributions of US Navy hospital ships,we briefly introduce the characteristics of US hospital ships regarding medical support,emergency rescue exercises,communications and training,international humanitarian aid,etc.We discuss the function and responsibility of Chinese hospital ships,focusing on the investigation of the construction mode and positioning in the navy.
文摘The risks in development of navy vessels were explored, The resources of technical risk in the design and development of vessels were mentioned, It was pointed that technical risk dominated the other risk components. Based on the writers＇ understanding and experience from risk analysis and risk ,nanagement to the development of a navy vessel, four measure indexes of technical risk were presented. The decision criteria and the rules corresponding to the indexes were estahlished by the statistic information,
基金a RISAM scholarship from Cork Institute of Technology
文摘Naval cohorts rely heavily on personnel to ensure the efficient running of naval organisations. As such, the wellbeing of personnel is essential. In an occupational setting, naval service personnel experience a variety of physiological and psychological stressors. Most naval services arrange annual physical fitness and body composition tests to ensure the physical readiness of personnel. However, these tests only evaluate a small amount of physiological capabilities. Components such as aerobic and strength capabilities are assessed, however, other components of physical fitness such as speed, agility, anaerobic capacity and flexibility are not. In addition to the physical capabilities, personnel are impacted by fatigue, nutrition and psychological stressors such as copping in stressful situations or dealing with time away from family and friends. This review will discuss the physiological and psychological factors that affect personnel's wellbeing. In addition to this, it will also evaluate the methods that are used to assess both physiological and psychological wellbeing.
基金financial support from Directorate General of Higher Education,Republic of Indonesia through a research scheme of Penelitian Pascasarjana 2018 with contract number 1783/UN1/DITLIT/DIT-LIT/LT/2018。
文摘Water pollution with dye chemicals from apparel industries is a serious problem in the world.Since most of dyes are potentially have toxic and carcinogenic effects on human,it is important to remove them before they are discharged to the environment.Among many methods available for dyes removal in water,adsorption is the easiest and economically feasible that has no major obstacle for practical applications.In the present study,we tested calcined Mg/Al hydrotalcite(Mg/Al CHT)prepared by coprecipitation technique as an adsorbent for the removal of Navy Blue(NB)and Yellow F3G(YF3G)dyes.Mg/Al CHT was characterized by using a Fourier transform infrared(FTIR)spectrometer,an X-ray diffractometer(XRD)and a scanning electron microscope(SEM).The results showed that Mg/Al CHT was highly effective as an adsorbent for the removal of NB and YF3G under mild-acidic condition(pH 4)with removal capacities(b)according to Langmuir isotherm model were 7.97×10^(–4) and 5.80×10^(–4)mol·g^(-1),respectively.Kinetics study showed that the adsorption of NB and YF3D on Mg/Al CHT followed pseudosecond order with rate constant(k_(p2))11.57×10^(3) and 11.75×103 g·mol^(-1)·min-1,respectively.The spent adsorbent can be easily regenerated by simply calcining it at 450℃ for 3 h.Adsorption test on the mixture of NB and YF3G showed that the adsorption capacity of Mg/Al CHT was eightfold higher than that of Mg/Al HT and the value was maintained with repeated use.
文摘Halosulfuron was recently registered as the second soil-applied herbicide for broadleaf weed control in Ontario dry beans, but does not provide an alternative mode of action. Sulfentrazone is used to control broadleaf weeds in soybean and other pulse crops, and its registration for Ontario dry beans would provide a different mode of action for broadleaf weed control. Five field studies were conducted over two years (2014, 2015) to determine if the spectrum of broadleaf weed control is improved by adding a half-rate of halosulfuron to sulfentrazone PRE, and to determine the tolerance of white bean to sulfentrazone (140 or 210 g ai ha-1), s-metolachlor (1050 g ai ha-1), and halosulfuron (17.5 g ai ha-1) applied alone and in combination. Crop injury was assessed at 2 and 4 weeks after crop emergence. Weed control was assessed at 4 and 8 weeks after herbicide application (WAA), and weed density and biomass were determined at 8 WAA. Seed moisture and yield were determined at harvest. Halosulfuron added to sulfentrazone improved the control of Ambrosia artemisiifolia and Sinapis arvensis. Sulfentrazone + s-metolachlor + halosulfuron caused up to 23% crop injury. Therefore, this study concludes that sulfentrazone + s-metolachlor + halosulfuron provides broad spectrum weed control, but is too injurious to white bean for registration in Ontario.
文摘There are a limited number of herbicides registered for weed management in white bean production in Ontario, Canada. Five field experiments were completed in Ontario from 2016 to 2018 to compare the efficacy of trifluralin and ethalfluralin applied alone and in combination with halosulfuron, applied preplant incorporated (PPI), for weed control efficacy and white bean tolerance and seed yield. At 2 and 4 WAE, there was no white bean injury from the herbicide treatments evaluated. Trifluralin applied PPI provided up to 32%, 99%, 13%, 99%, 27%, 99% and 99% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Trifluralin and ethalfluralin provide similar control of velvetleaf, redroot pigweed, barnyardgrass and green foxtail control, however, ethalfluralin is slightly more efficacious on common ragweed, common lambsquarters and wild mustard. Halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>), applied PPI, provided as much as 76%, 98%, 96%, 96%, 100%, 19% and 23% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Trifluralin (600 or 1155 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) + halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>), applied PPI, provided up to 88%, 100%, 98%, 100%, 100%, 99% and 98% control of velvetleaf, redroot pigweed, common ragweed, common lambsquarters, wild mustard, barnyardgrass and green foxtail, respectively. Ethalfluralin (810 or 1080 ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) + halosulfuron (35 g<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ai<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup>) provided similar control. Weed interference decreased white bean seed yield 44% - 45% with trifluralin, 30% - 41% with ethalfluralin and 34% with halosulfuron. However, decreased weed interference with trifluralin and ethalfluralin applied in combination with halosulfuron resulted white bean seed yield that was similar to the weed-free control. Trifluralin or ethalfluralin co-applied with halosulfuron can be safely used in white bean production for the control of common annual grass and broadleaf weeds in Ontario.
