Medial tibial stress syndrome(MTSS) is a debilitating overuse injury of the tibia sustained by individuals whoperform recurrent impact exercise such as athletes and military recruits. Characterised by diffuse tibial a...Medial tibial stress syndrome(MTSS) is a debilitating overuse injury of the tibia sustained by individuals whoperform recurrent impact exercise such as athletes and military recruits. Characterised by diffuse tibial anteromedial or posteromedial surface subcutaneous periostitis, in most cases it is also an injury involving underlying cortical bone microtrauma, although it is not clear if the soft tissue or cortical bone reaction occurs first. Nuclear bone scans and magnetic resonance imaging(MRI) can both be used for the diagnosis of MTSS, but the patient's history and clinical symptoms need to be considered in conjunction with the imaging findings for a correct interpretation of the results, as both imaging modalities have demonstrated positive findings in the absence of injury. However, MRI is rapidly becoming the preferred imaging modality for the diagnosis of bone stress injuries. It can also be used for the early diagnosis of MTSS, as the developing periosteal oedema can be identified. Retrospective studies have demonstrated that MTSS patients have lower bone mineral density(BMD) at the injury site than exercising controls, and preliminary data indicates the BMD is lower in MTSS subjects than tibial stress fracture(TSF) subjects. The values of a number of tibial geometric parameters such as cross-sectional area and section modulus are also lower in MTSS subjects than exercising controls, but not as low as the values in TSF subjects. Thus, the balance between BMD and cortical bone geometry may predict an individual's likelihood of developing MTSS. However, prospective longitudinal studies are needed to determine how these factors alter during the development of the injury and to find the detailed structural cause, which is still unknown. Finite element analysis has recently been used to examine the mechanisms involved in tibial stress injuries and offer a promising future tool to understand the mechanisms involved in MTSS. Contemporary accurate diagnosis of either MTSS or a TSF includes a thorough clinical ex展开更多
1前言
全站仪,是一种集电子测角、电子测距和数据存储于一身的现代测量仪器.将全站仪用于立式金属罐容积标定的方法,我们称之为金属罐标定的全站仪法Electronic Total Station Method,简称ETSM).早在1984年,该方法已由SHIN NIHON KENTEI...1前言
全站仪,是一种集电子测角、电子测距和数据存储于一身的现代测量仪器.将全站仪用于立式金属罐容积标定的方法,我们称之为金属罐标定的全站仪法Electronic Total Station Method,简称ETSM).早在1984年,该方法已由SHIN NIHON KENTEI KYOKAI(新日本测量员协会)推荐,1985年由国际标准化组织ISO/TC 28/SC 3确定为国际标准.该方法适用于内测,特别适用于地下油库和带保温层的金属罐.展开更多
Upon entering the military recruits are challenged physically, this is exceptionally difficult for women as their anatomy predisposes them to more impact injuries than men. Female military recruits are placed at a hig...Upon entering the military recruits are challenged physically, this is exceptionally difficult for women as their anatomy predisposes them to more impact injuries than men. Female military recruits are placed at a higher risk for shin splints, a repetition injury known in the medical field as medial tibial stress syndrome (MTSS). This review paper explores studies about MTSS, its prevalence, and expression in military recruits, particularly as its expression differs across gender. This paper will cover how the external environment of boot camp results in a higher prevalence of MTSS than the general population and how increased occurrence of MTSS in females has been attributed to specific physical attributes. This includes smaller tibial cross-sectional dimensions, greater than average hip range of motion, and differences in lower extremity mechanics during running and other repetitive physical activities. The external environment of boot camp coupled with these intrinsic factors highlight the importance of providing running education for women prior to arrival at boot camp and designing training regiments that account for these physiological differences.展开更多
Shin Eon-jun and Karashima interacted with Lu Xun during a similar period but their relationships with him proceeded in different directions. Shin Eon-jun participated in the independence movements in Korea, introduce...Shin Eon-jun and Karashima interacted with Lu Xun during a similar period but their relationships with him proceeded in different directions. Shin Eon-jun participated in the independence movements in Korea, introduced Lu Xun from the progressive position, and actively reported the political situation and philosophical trends in China. On the other hand, Karashima put his major focus on Lu Xun and left wing literature, when introducing the new literature of China, but gradually revealed an opportunistic attitude and actively participated in promoting Japan＇s ＂National Policy.＂展开更多
To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is ...To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is not economically viable for most countries. However, oil and fossil fuel prices are known to be highly volatile, and the Paris Agreement calls for a reduction in fossil fuel use. Under these circumstances, heat supplied by nuclear power may abruptly return to favor. To prepare for such a scenario, this study will investigate design considerations for a prototypical modem nuclear power plant, the Korean APR1400 （advanced power reactor 1400） （e.g., Shin Kori Units 3, 4, Shin Hanul 1, 2, Barakah Units 1, 2, 3, 4）. Nuclear cogeneration can impact balance of plant system and component design for the condensate, feedwater, extraction steam, and heater drain systems. The APR1400 turbine cycle will be reviewed for a parametric range of pressures and flow rates of the steam exported for cogeneration to identify major design challenges.展开更多
文摘Medial tibial stress syndrome(MTSS) is a debilitating overuse injury of the tibia sustained by individuals whoperform recurrent impact exercise such as athletes and military recruits. Characterised by diffuse tibial anteromedial or posteromedial surface subcutaneous periostitis, in most cases it is also an injury involving underlying cortical bone microtrauma, although it is not clear if the soft tissue or cortical bone reaction occurs first. Nuclear bone scans and magnetic resonance imaging(MRI) can both be used for the diagnosis of MTSS, but the patient's history and clinical symptoms need to be considered in conjunction with the imaging findings for a correct interpretation of the results, as both imaging modalities have demonstrated positive findings in the absence of injury. However, MRI is rapidly becoming the preferred imaging modality for the diagnosis of bone stress injuries. It can also be used for the early diagnosis of MTSS, as the developing periosteal oedema can be identified. Retrospective studies have demonstrated that MTSS patients have lower bone mineral density(BMD) at the injury site than exercising controls, and preliminary data indicates the BMD is lower in MTSS subjects than tibial stress fracture(TSF) subjects. The values of a number of tibial geometric parameters such as cross-sectional area and section modulus are also lower in MTSS subjects than exercising controls, but not as low as the values in TSF subjects. Thus, the balance between BMD and cortical bone geometry may predict an individual's likelihood of developing MTSS. However, prospective longitudinal studies are needed to determine how these factors alter during the development of the injury and to find the detailed structural cause, which is still unknown. Finite element analysis has recently been used to examine the mechanisms involved in tibial stress injuries and offer a promising future tool to understand the mechanisms involved in MTSS. Contemporary accurate diagnosis of either MTSS or a TSF includes a thorough clinical ex
文摘1前言
全站仪,是一种集电子测角、电子测距和数据存储于一身的现代测量仪器.将全站仪用于立式金属罐容积标定的方法,我们称之为金属罐标定的全站仪法Electronic Total Station Method,简称ETSM).早在1984年,该方法已由SHIN NIHON KENTEI KYOKAI(新日本测量员协会)推荐,1985年由国际标准化组织ISO/TC 28/SC 3确定为国际标准.该方法适用于内测,特别适用于地下油库和带保温层的金属罐.
文摘Upon entering the military recruits are challenged physically, this is exceptionally difficult for women as their anatomy predisposes them to more impact injuries than men. Female military recruits are placed at a higher risk for shin splints, a repetition injury known in the medical field as medial tibial stress syndrome (MTSS). This review paper explores studies about MTSS, its prevalence, and expression in military recruits, particularly as its expression differs across gender. This paper will cover how the external environment of boot camp results in a higher prevalence of MTSS than the general population and how increased occurrence of MTSS in females has been attributed to specific physical attributes. This includes smaller tibial cross-sectional dimensions, greater than average hip range of motion, and differences in lower extremity mechanics during running and other repetitive physical activities. The external environment of boot camp coupled with these intrinsic factors highlight the importance of providing running education for women prior to arrival at boot camp and designing training regiments that account for these physiological differences.
文摘Shin Eon-jun and Karashima interacted with Lu Xun during a similar period but their relationships with him proceeded in different directions. Shin Eon-jun participated in the independence movements in Korea, introduced Lu Xun from the progressive position, and actively reported the political situation and philosophical trends in China. On the other hand, Karashima put his major focus on Lu Xun and left wing literature, when introducing the new literature of China, but gradually revealed an opportunistic attitude and actively participated in promoting Japan＇s ＂National Policy.＂
文摘To date, nuclear cogeneration applications have been limited, primarily to district heating in Eastern Europe and heavy water production in Canada. With the current global price for oil and energy, this technology is not economically viable for most countries. However, oil and fossil fuel prices are known to be highly volatile, and the Paris Agreement calls for a reduction in fossil fuel use. Under these circumstances, heat supplied by nuclear power may abruptly return to favor. To prepare for such a scenario, this study will investigate design considerations for a prototypical modem nuclear power plant, the Korean APR1400 （advanced power reactor 1400） （e.g., Shin Kori Units 3, 4, Shin Hanul 1, 2, Barakah Units 1, 2, 3, 4）. Nuclear cogeneration can impact balance of plant system and component design for the condensate, feedwater, extraction steam, and heater drain systems. The APR1400 turbine cycle will be reviewed for a parametric range of pressures and flow rates of the steam exported for cogeneration to identify major design challenges.
