不同温度环境下“软壳衣”的热功能性评价

针对户外服装"软壳衣"(Soft-shell)在不同温度环境下的热功能性及其影响因素开展评价与分析。为此设计和开展一个试穿实验:以市场采购的"软壳衣"作为试验样衣,在人工气候室中模拟3种不同温度环境(相对湿度与风速固定),并要求5名试穿者在穿着规定的"软壳衣"和配套服装情况下,完成所设计的运动模式,最后通过采集人体体表温度和相对湿度来分析"软壳衣"的热功能性。实验结果表明,"软壳衣"适合在5℃～15℃环境下运动时穿着,而不适合在高温以及寒冷环境下使用,影响其功能的主要原因是服装材料保暖性以及透水性。

通秘丸联合生物反馈治疗肠道实热型功能性便秘的临床疗效研究

目的观察通秘丸联合生物反馈治疗肠道实热型便秘的临床疗效。方法将46例肠道湿热型便秘患者按随机数字表法分为治疗组和对照组,各23例。治疗组给予通秘丸联合生物反馈治疗,对照组给予通秘丸治疗。观察各组治疗前后排便情况,并进行肛压测定、结肠传输试验作对比分析。结果治疗组临床效果优于对照组,差异具有统计学意义(P<0.05)。标志物排除率分别增长了21.2%、49.8%(P<0.05)、肛门-直肠抑制反射,直肠感觉阈值,直肠最大耐受阈值均下降。结论通秘丸联合生物反馈在治疗肠道实热型便秘具有较好疗效。

三仁汤加减治疗湿热内蕴型功能性消化不良疗效及作用机制

目的:探究三仁汤加减治疗湿热内蕴型功能性消化不良的疗效及作用机制。方法:选取2017年1-8月在我院进行治疗的150例,将其随机分为两组,分别进行常规西药治疗(常规组)及三仁汤加减治疗(研究组)。比较患者临床症状、胃功能指标及治疗效果。结果:治疗后,其症状评分及胃功能指标均有显著改善,研究组患者改善程度更为显著,与治疗前及常规组比较,差异均有统计学意义(P <0.05),且研究组疗效优良率为89.33%,显著高于常规组的69.33%(P <0.05),同时研究组患者复发率为2.67%,显著低于常规组。结论:采用三仁汤加减治疗湿热内蕴型功能性消化不良,能够显著提高治疗效果,改善患者相应症状,促进其胃功能恢复,对提高患者生活质量具有重要意义。

加减藿朴夏苓汤配合胃动力仪治疗功能性消化不良脾胃湿热证效果分析

目的：分析加减藿朴夏苓汤配合胃动力仪治疗功能性消化不良（FD）脾胃湿热证的临床效果。方法选取安阳地区医院2013年7月～2016年8月收治的92例FD脾胃湿热证患者，采用随机数字表法分为观察组（n＝46）和对照组（n＝46）。对照组给予常规西药治疗，观察组给予加减藿朴夏苓汤配合胃动力仪治疗，治疗2周后统计比较两组总有效率及不良反应发生情况。结果观察组总有效率为95．65％，高于对照组总有效率80．43％，差异有统计学意义（P＜0．05）；两组不良反应发生率差异无统计学意义（P＞0．05）。结论加减藿朴夏苓汤配合胃动力仪治疗FD脾胃湿热证效果显著，安全可靠。

基于通调三焦法运用三仁汤加减治疗湿热蕴脾型功能性便秘疗效观察

目的观察三仁汤加减治疗湿热蕴脾型功能性便秘的临床疗效和安全性。方法选取于陕西中医药大学附属医院肛肠科门诊就诊的湿热蕴脾型功能性便秘患者70例为研究对象,采用随机数字表法分为治疗组和对照组,每组35例。对照组给予口服聚乙二醇4000散,10克/次,2次/天;治疗组给予口服三仁汤加减制成的中药汤剂,1剂/天,水煎,早晚温服。共治疗14 d,随访3个月。观察两组患者临床疗效,并比较两组患者粪便性状、排便难易、生存质量评分情况。结果在治疗14 d后,治疗组总有效率高于对照组(P<0.05)。治疗后,两组粪便性状、排便难易评分均降低(P<0.05),且治疗组较对照组降低更明显(P<0.05)。治疗后,两组身体不适、心理社会不适、担心和焦虑、满意度评分均降低(P<0.05),且治疗组较对照组降低更明显(P<0.05)。对照组患者服药期间出现1例腹痛、3例腹胀,治疗组服药期间未见不适。结论三仁汤加减治疗湿热蕴脾型功能性便秘临床疗效确切,且无不良反应。

安泰胶囊治疗实热型功能性便秘86例疗效观察

目的观察安泰胶囊治疗实热型功能性便秘的疗效。方法将172例实热型功能性便秘患者随机分为治疗组和对照组各86例。对照组采用苁蓉通便口服液治疗,治疗组给予安泰胶囊治疗。治疗后及停药8周后比较2组临床疗效、不良反应和复发率。结果治疗后治疗组总有效率为93.0%高于对照组的62.8%,差异有统计学意义(P<0.05)。停药8周后,治疗组复发率为3.8%低于对照组的14.8%,差异有统计学意义(P<0.05)。2组均未出现明显不良反应。结论安泰胶囊治疗实热型功能性便秘疗效显著,值得推广应用。

针刺治疗功能性便秘之热秘的临床疗效观察

目的探讨将针刺疗法应用到功能性便秘之热秘治疗中的临床效果。方法：选择功能性便秘之热秘患者70例，随机分为观察组与对照组各35例，观察组给予中医针灸治疗，对照组给予麻仁丸治疗，对两组治疗效果进行分析。结果：观察组治疗总有效率为94．3％，明显高于对照组的85．7％；观察组复发率为2．996，明显低于对照组的17．1％，差异具备统计学意义（P〈0．05）。结论：在功能性便秘之热秘的治疗中，实施针灸治疗能够实现良好的临床疗效，有效缓解患者便秘情况，值得推广使用。

三仁汤加味联合双歧杆菌四联活菌片治疗功能性消化不良(湿热内蕴型)临床观察

目的:观察功能性消化不良(湿热内蕴型)应用三仁汤加味联合双歧杆菌四联活菌片治疗的临床疗效。方法:收集本地2014年1月-12月间功能性消化不良(湿热内蕴型)患者60例,随机分成两组,各30例。A组给予双歧杆菌四联活菌片治疗;B组给予三仁汤加味联合双歧杆菌四联活菌片治疗。对两组的临床疗效进行测评对比。结果:B组总有效率显著高于A组,P<0.05;B组1年复发率显著低于A组,P<0.05,差异有统计学意义;B组各免疫功能指标均明显优于A组,P<0.05,差异有统计学意义。结论:应用三仁汤加味联合双歧杆菌四联活菌片治疗(湿热内蕴型)功能性消化不良的临床疗效满意。

核电厂支吊架验证试验问题分析与改进

支吊架是管道系统的主要支撑元件,在机组热态功能性试验期间需要验证其机械性能符合要求,对各支吊架进行检查,确保其满足设计要求,不妨碍管道位移。通过对某核电机组热态功能性试验期间出现的各种支吊架问题进行分析,并对解决以及改进措施进行总结,为后续机组维修工作提供借鉴。

High-Thermal Conductive Coating Used on Metal Heat Exchanger

Based on modified silicon polyester resin in addition to several functional fillers such as corrosion-resistant fillers, heat-resistant fillers and thermal conductive fillers, a high thermal conductive coating can be made. On the basis of boronnitride(BN) and aluminum nitride(AIN) used as thermal conductive fillers and by means of the testing system of hot disk and heat transfer experiment, researches on the varieties of thermal conductive fillers and the effects of the contents of high-thermal conductive coating have been done, which shows that the thermal conductivity of coating increases with the increase of the quality fraction and the coefficient of thermal conductivity of the thermal conductive fillers of coating. With guaranteeing better heat resistance, stronger corrosion resistance and adhesive force, the coefficient of coating can reach a level as high as 3 W·m-1·K-1.

Thermal conductivity of carbon nanotube-silver composite

The molecular level mixing method was extended to fabricate carbon nanotube reinforced silver composite. The influence of type of carbon nanotubes（single/multiwall） reinforcement and their mode of functionalization（covalent/non-covalent） on thermal conductivity of silver composite was investigated. X-ray diffraction and electron diffraction spectroscopy（EDS） confirm the presence of silver and carbon in the composite powder. High resolution scanning electron microscopy and transmission electron microscopy ascertain embedded, anchored and homogeneously implanted carbon nanotubes in silver matrix. Effect of covalent functionalization on multiwall carbon nanotubes was monitored by Raman and Fourier transform infrared spectroscopy. These investigations confirm the addition of functional groups and structural integrity of carbon nanotubes even after covalent functionalization. Thermal conductivity of composites was measured by a laser flash technique and theoretically analyzed using an effective medium approach. The experimental results reveal that thermal conductivity decreases after incorporation of covalently functionalized multiwall nanotubes and single wall carbon nanotubes. However, non-covalently functionalized multiwall nanotube reinforcement leads to the increase in effective thermal conductivity of the composite and is in agreement with theoretical predictions derived from effective medium theory, in absence of interfacial thermal resistance.

Thermoelastic stresses in a uniformly heated functionally graded isotropic hollow cylinder

The axisymmetric thermoelastic problem of a uniformly heated, functionally graded isotropic hollow cylinder is considered. An analytical form of solution is proposed. For the case when the Young's modulus and thermal expansion coefficient have a power\|law dependence on the radial coordinate, explicit exact solution is obtained. For the degenerated case, i.e. when the cylinder is homogeneous and isotropic, no stresses will occur provided it is subjected to a uniform temperature. Numerical results are finally given and some important inclusions are obtained.

Thermoelastic vibration analysis of micro-scale functionally graded material fluid-conveying pipes in elastic medium

Micro-scale functionally graded material(FGM)pipes conveying fluid have many significant applications in engineering fields.In this work,the thermoelastic vibration of FGM fluid-conveying tubes in elastic medium is studied.Based on modified couple stress theory and Hamilton’s principle,the governing equation and boundary conditions are obtained.The differential quadrature method(DQM)is applied to investigating the thermoelastic vibration of the FGM pipes.The effect of temperature variation,scale effect of the microtubule,micro-fluid effect,material properties,elastic coefficient of elastic medium and outer radius on thermoelastic vibration of the FGM pipes conveying fluid are studied.The results show that in the condition of considering the scale effect and micro-fluid of the microtubule,the critical dimensionless velocity of the system is higher than that of the system which calculated using classical macroscopic model.The results also show that the variations of temperature,material properties,elastic coefficient and outer radius have significant influences on the first-order dimensionless natural frequency.

Elastic and Thermodynamic Properties of CdSe from First-Principles Calculations

The lattice parameters, bulk modulus, phase transition pressure, and temperature dependencies of the elastic constants cij of CdSe are investigated by using the Cambridge Serial Total Energy Package （CASTEP） program in the frame of Density Functional Theory （DFT）. It is found that the phase transitions from the ZB structure to the RS structure and from WZ structure to RS structure are 2.2 GPa and 2.8 GPa, respectively. Our results agree well with the available experimental data and other theoretical results. The aggregate elastic modulus （B, G, E, A ）, the Poisson＇s ratio （v）, the Griuneisen parameter （γ）, the Debye temperature θD on pressure and temperature are also successfully obtained.

Fabrication and performance evaluation of the thermoelectric generation and performance measuring system

A novel thennoelectric generating and performance measuring system （TGPMS） was designed and fabricated. TGPMS can not only achieve the function of thennoelectric generation, but also measure the thennoelectric performance parameters of the bismuth-telluride-based thennoelectric device accurately. These thennoelectric performance parameters mainly include the dependence of the Seebeck coefficient of the thennoelectric device on the device＇s temperature in the low temperature range （about 40 ~ 190~C ）, and the dependence of the power output and thermoelectric conversion efficiency on the temperature dif- ference or output load. With the optimum load, the optimal value of the power output is 3.39W when the temperature difference reaches 231.2~C, and the optimal value of the conversion efficiency is 3.22% when the temperature difference reaches 208.9~C. TGPMS provides an experimental foundation for the application of the thennoelectric generators in the space field.

Past, Present and Future of Military Food Technology

Food technology has been instrumental in ensuring that troops remain ＂fit to fight＂. Early food technologies produced flat bread, hard biscuits, cheese and salted meat, allowing Roman legionaries to carry rations for several days. Canning was invented in the late 18th century in response to the French Government＇s offer of a substantial reward to the person whose invention would allow troops to carry their food when marching long distances. World War II saw further advances in the form of stable and palatable canned meals, compressed cereal bars, candy-coated peanuts and other innovative foods in US combat rations. Two significant technology breakthroughs in the second half of the 20th century have altered the form of military rations. Freeze drying matured as an industrial technology, allowing the production of long-life, light-weight rations. Flexible packaging, based on plastic laminates, led to reduced weight and less waste disposal through the development of retort pouched meals （meals in flexible packaging that have undergone heat sterilization）, which have largely replaced metal cans in combat rations. Improvements in quality of military rations, particularly their organoleptic properties, are emerging through application of innovative technologies such as high-pressure thermal processing, pulsed electric field, and microwave assisted thermal sterilization. Research and development of ＂functional foods＂, such as those containing added essential fatty acids or probiotics offers the potential to provide combat rations that can further improve soldier health and performance.

Curing Behaviors and Thermal Properties of Dimer Fatty Acid （DFA） Modified Multifunctional Epoxy Resin

In order to improve the toughness of the cured aromatic tetrafunctional epoxy resins, a dlmer rarboxylic acid named dlmer fatty acid （DFA） was used to modify an aromatic tetrafunctional epoxy, N, N, N＇, N＇-tetraglycidyl-2,2-bis [ 4-（ 4-aminophcuoxy ） phenyl ] propane （TGBAPP）. The curing behaviors of DFA- TGBAPP/MNA （ methyl nadic anhydride） systems were studied by differential scanning calorimetry （DSC） method. And the thermal properties of the cured epoxy resin were investigated with the thermo-gravimetric analysis （TGA） and dynamic mechanical analysis （DMA）. Besides, the toughness was characterized with the impact strength tested by charpy impact testing. The results indicated that the modification would improve the curing reactions, and the curing temperatures were decreased with the increasing content of DFA. The thermal properties were not influenced obviously, and the toughness could be improved when the epoxy resin was modified with DFA.

Hemorrhagic Fever with Renal Syndrome Complicated by Orchitis

Hemorrhagic fever with renal syndrome (HFRS) is a disease caused by viruses of the family Bunyaviridae,genus Hantavirus.HFRS from Dobrava virus (DOBV) is a seldom reported disease in Albania.Clinically HFRS is manifested as mild,moderate,or severe.Therefore,the number of cases of Hantavirus' infection may be underestimated,and should be included in the differential diagnosis of many acute infections,hematologic diseases,acute abdominal diseases and renal diseases complicated by acute renal failure.We report here an atypical presentation of HFRS from Dobrava virus complicated by orchitis with a positive outcome.

Synthesis of multifunctional monomers from rosin for the properties enhancement of soybean-oil based thermosets

Two kinds of rosin derivatives, （2-hydroxy-3-（methacryloyloxy）propyl 7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,4b,5,6,10,10a- decahydrophenanthrene-1-carboxylate） （HMPIDDC） and （（（7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydrophenan- thren-1-yl）methyl）azanediyl）bis（2-hydroxypropane-3,1-diyl）bis（2-methylacrylate） （IDOMAHM） were synthesized under mild and easy to implement conditions. The two derivatives were employed as the rigid monomers to copolymerize with acrylated epoxidized soybean oil （AESO）, as so to improve the performance of the cured resins. The chemical structures of HMPIDDC and IDOMAHM were confirmed by nuclear magnetic resonance （NMR） and Fourier Transform Infrared （FT-IR） before copolymerization. The curing behaviors of pristine AESO, AESO/HMPIDDC blend, and AESO/IDOMAHM blend were monitored by differential scanning calorimetry （DSC）. Moreover, the thermal and mechanical properties of the cured resins were evaluated by universal mechanical testing, dynamic mechanical analysis （DMA） and thermogravimetric analysis （TGA）. The results demonstrated that after the introduction of HMPIDDC and IDOMAHM, the glass transition temperature and mechanical properties of the copolymerized resin were significantly increased. In one word, HMPIDDC and IDOMAHM showed dramatic potential to be used as bio-based compounds to improve the properties of soybean-oil based thermosets.

Experimental Study on the Start Up Performance of Flat Plate Pulsating Heat Pipe

An experimental system of flat plate pulsating heat pipe was established and experimental research was carried out in this system to know the mechanism of heat transfer, start-up and operating characteristics. The factors, such as filling rate, heating power, heating method etc, which have great influence on the thermal performance of the plate pulsating heat pipe were discussed. The results indicate that heating power and filling rate are the important factors for the start-up of the plate pulsating heat pipe. The different start-up power is needed with different filling rate, and the start-up of the heat pipe in case of bottom heated is much easier than that of top heated. Increasing the heating power and enlarging the heating area can make the start-up easier. Heating power can also affect the start-up time of heat pipe under the condition of bottom heated, while it does not have some influence to the heat pipe of top heated. The thermal resistance of plate pulsating heat pipe is related with the heating power, and the higher the heating power is, the smaller the thermal resistance is. But the best filling rate which the heat pipe needs is different with different heating methods, and the performance of the heat pipe in the case of bottom heated is better than the others.