mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Multi-objective interval prediction of wind power based on conditional copula function

Interval prediction of wind power,which features the upper and lower limits of wind power at a given confidence level,plays a significant role in accurate prediction and stability of the power grid integrated with wind power.However,the conventional methods of interval prediction are commonly based on a hypothetic probability distribution function,which neglects the correlations among various variables,leading to decreased prediction accuracy.Therefore,in this paper,we improve the multiobjective interval prediction based on the conditional copula function,through which we can fully utilize the correlations among variables to improve prediction accuracy without an assumed probability distribution function.We use the multi-objective optimization method of nondominated sorting genetic algorithm-II (NSGA-II) to obtain the optimal solution set.The particular best solution is weighted by the prediction interval average width (PIAW) and prediction interval coverage probability (PICP) to pick the optimized solution in practical examples.Finally,we apply the proposed method to three wind power plants in different Chinese cities as examples for validation and obtain higher prediction accuracy compared with other methods,i.e.,relevance vector machine (RVM),artificial neural network (ANN),and particle swarm optimization kernel extreme learning machine (PSO-KELM).These results demonstrate the superiority and practicability of this method in interval prediction of wind power.
Component importance assessment of power systems for improving resilience under wind storms

Increasingly frequent natural disasters and manmade malicious attacks threaten the power systems.Improving the resilience has become an inevitable requirement for the development of power systems.The importance assessment of components is of significance for resilience improvement,since it plays a crucial role in strengthening grid structure,designing restoration strategy,and improving resource allocation efficiency for disaster prevention and mitigation.This paper proposes a component importance assessment approach of power systems for improving resilience under wind storms.Firstly,the component failure rate model under wind storms is established.According to the model,system states under wind storms can be sampled by the non-sequential Monte Carlo simulation method.For each system state,an optimal restoration model is then figured out by solving a component repair sequence optimization model considering crew dispatching.The distribution functions of component repair moment can be obtained after a sufficient system state sampling.And Copeland ranking method is adopted to rank the component importance.Finally,the feasibility of the proposed approach is validated by extensive case studies.
Influence of longwall gateroad convergence on the process of mine ventilation network-model tests

Hard coal mines are required to constantly ventilate mine workings to ensure that the air composition is at a certain humidity and temperature level that is comfortable for underground mine workers, especially in deep deposits. All underground workings, which are part of the mine ventilation network, should be ventilated in a way that allows maintaining proper oxygen concentration not lower than 19%(by volume), and limits concentration of gases in the air such as methane, carbon monoxide or carbon dioxide. The air flow in the mine ventilation network may be disturbed due to the natural convergence(deformation) and lead to change in its original cross-section. Reducing the cross-sectional area of the mining excavation causes local resistances in the air flow and changes in aerodynamic potentials, which leads to emergency states in the mine ventilation network. This paper presents the results of numerical simulations of the influence of gateroad convergence on the ventilation process of a selected part of the mine ventilation network. The gateroad convergence was modelled with the finite element software PHASE 2. The influence of changes in the cross-sectional area of the gateroad on the ventilation process was carried out using the computational fluid dynamics software Ansys-Fluent.
Machine learning methods for rockburst prediction-state-of-the-art review

One of the most serious mining disasters in underground mines is rockburst phenomena. They can lead to injuries and even fatalities as well as damage to underground openings and mining equipment. This has forced many researchers to investigate alternative methods to predict the potential for rockburst occurrence. However, due to the highly complex relation between geological, mechanical and geometric parameters of the mining environment, the traditional mechanics-based prediction methods do not always yield precise results. With the emergence of machine learning methods, a breakthrough in the prediction of rockburst occurrence has become possible in recent years. This paper presents a state-ofthe- art review of various applications of machine learning methods for the prediction of rockburst potential. First, existing rockburst prediction methods are introduced, and the limitations of such methods are highlighted. A brief overview of typical machine learning methods and their main features as predictive tools is then presented. The current applications of machine learning models in rockburst prediction are surveyed, with related mechanisms, technical details and performance analysis.
New approaches to cognitive work analysis through latent variable modeling in mining operations

This paper discusses the utilization of latent variable modeling related to occupational health and safety in the mining industry. Latent variable modeling, which is a statistical model that relates observable and latent variables, could be used to facilitate researchers' understandings of the underlying constructs or hypothetical factors and their magnitude of effect that constitute a complex system. This enhanced understanding, in turn, can help emphasize the important factors to improve mine safety. The most commonly used techniques include the exploratory factor analysis(EFA), the confirmatory factor analysis(CFA) and the structural equation model with latent variables(SEM). A critical comparison of the three techniques regarding mine safety is provided. Possible applications of latent variable modeling in mining engineering are explored. In this scope, relevant research papers were reviewed. They suggest that the application of such methods could prove useful in mine accident and safety research. Application of latent variables analysis in cognitive work analysis was proposed to improve the understanding of human-work relationships in mining operations.
Rock support in strainburst-prone ground

Strainburst is the most frequently encountered type of rockburst in underground mines. Strainburst occurs when the stress near the excavation boundary reaches the peak strength of the rock mass causing it to fail suddenly and violently. To mitigate strainburst damage risk, effective rock support is needed. In strainburst-prone grounds, it is critical to have rock support components to fulfill the role of rock reinforcement first to prevent rock failure. On the other hand, well-retained and reinforced rock masses may be excessively deformed and fail violently. In such a case, yielding elements are needed in the rock support system to absorb the excess strain energy released due to rock failure. The conventional method to support strainburst-prone grounds is to install rock reinforcement system using rebar and mesh first and then install yielding support system using dynamic rockbolts at a later stage. This two-stage rock support installation process is not effective because it can adversely impact mine production schedule. This paper presents a new, patented dynamic rockbolt, which is called superbolt and is developed for rock support in burst-prone grounds. Laboratory testing confirmed that the superbolt has superb capacity to achieve the goal of reinforcing and holding rock masses. The superbolt is characterized by high dynamic energy absorption capacity, consistent performance, and the ability to withstand repeated dynamic loading. The new rockbolt can be used in a one-pass rock support system to facilitate rapid drift development in underground mines and increase mine safety and productivity.
Molecular Cloning and Putative Functions of KIFC1 for Acrosome Formation and Nuclear Reshaping during Spermiogenesis in Schlegel’s Japanese Gecko Gekko japonicus

Spermiogenesis, occurring in the male testis, is a complicated and highly-ordered developmental process resulting in the production of fertile mature sperm. In Gekko japonicus, this process occurs in 7 steps during which the spermatids undergo dramatic changes in the cytoskeleton and nucleus. Here, we cloned and sequenced the cDNA of the mammalian KIFC1 homologue in the testis of G. japonicus. The 2 344 bp full-length cDNA sequence contained a 191 bp 5'-untranslated region, a 134 bp 3'-untranslated region and a 2 019 bp open reading frame encoding a protein of 672 amino acids. Tissue expression analysis revealed the highest expression of kifc1 mRNA was in the testis. Fluorescence in situ hybridization revealed that the kifc1 mRNA signal was hardly detected in step 1 spermatids but became concentrated at the acrosome of step 2 spermatids and abundant in the nucleus of step 5 spermatids where the nucleus then undergoes dramatic elongation and compression. The kifc1 mRNA signal then gradually disappears in mature sperm. This expression of KIFC1 at specific stages of spermiogenesis in G. japonicus implies its important role in the major cytological transformations such as acrosome biogenesis and nucleus morphogenesis.
Assessing the influence of the minimum measured diameter on forest spatial patterns and nearest neighborhood relationships

Forest structure analysis is important for understanding the properties and development of a forest community,and its outcomes can be influenced by how trees are measured in sampled plots.Although there is a general consensus on the height at which tree diameter should be measured [1.3 m:diameter at breast height (DBH)],the minimum measured diameter (MMD) often varies in different studies.In this study,we assumed that the outcomes of forest structure analysis can be influenced by MMD and,to this end,we applied g(r) function and stand spatial structural parameters (SSSPs) to investigate how different MMDs affect forest spatial structure analysis in two pine-oak mixed forests (30 and 57 years old) in southwest China and one old-growth oak forest (>120 years old) from northwest China.Our results showed that 1) MMD was closely related to the distribution patterns of forest trees.Tree distribution patterns at each observational scale (r=0-20 m) tended to become random as the MMD increased.The older the community,the earlier this random distribution pattern appeared.2) As the MMD increased,neighboring trees became more regularly distributed around a reference tree.In most cases,however,nearest neighbors of a reference tree were randomly distributed.3) Tree species mingling decreased with increasing diameter,but it decreased slowly in older forests.4) No correlations can be found between individual tree size differentiation and MMD.We recommend that comparisons of spatial structures between communities would be more effective if using a unified MMD criterion.
抗旱、丰产、稳产冬小麦新品种—陇育13号

陇育13号是陇东学院农林科技学院根据陇东旱塬地冬小麦生产对品种抗旱性、抗寒性、抗病性等要求,于2008年以自育高代品系9917-2-2-1- 1为母本、临旱51241为父本进行有性杂交,采用系谱法选育而成的抗旱、丰产、稳产冬小麦新品种。2019年通过甘肃省农作物品种审定委员会审定,审定编号为甘审麦20190008。
国审高产稳产小麦新品种—农大3486

农大3486是中国农业大学小麦研究中心由组合农大211/新麦9号//良星99选育的小麦新品种,于2017年6月和2018年5月先后通过了北京市审定(京审麦20170001)和北部冬麦区国家审定(国审麦20180068)。该品种冬性、中熟,幼苗近直立,分蘖力较强,成穗率中等。株高80cm左右,株型紧凑;穗纺锤型,长芒,白壳,白粒(图1)。产量三要素协调,产量潜力大,丰产性好。抗寒性较好,综合抗病性好,抗干热风,熟相好,籽粒饱满,商品性佳。
抗精神病药导致的高泌乳素血症的干预措施

高泌乳素血症(HPRL)是抗精神病药的常见不良反应,会给患者带来一系列的临床问题如月经紊乱、骨质疏松骨折等。我们检索国内外相关文献,主要综述目前针对抗精神病药致HPRL的干预措施,包括使用抗精神病药的最低有效剂量、换药、联合阿立哌唑、多巴胺受体激动剂、二甲双胍、中医药等,为该类患者的临床治疗提供参考。
花剥苔不尽主阴虚

花剥苔是指在疾病过程中,舌苔多处于不均匀剥落,舌面仅斑驳残存少量舌苔者,多数观点认为其主阴虚内热。笔者跟随盖国忠教授学习过程中,总结其临床用药特点发现他对花剥苔有独到的认识,认为花剥苔不尽主阴虚,也与阳虚阴盛、气机紊乱、邪实阻滞有关。舌苔乃胃气沤蒸于舌面形成,阳明胃经为多气多血之经,其变数尤多,布蒸多少与气血津液的盈亏、阴阳的偏胜偏衰等均有关,不尽阴虚一途。临床中当四诊合参,穷及病本,方能药中肯綮。
塑料机械工程设计领域虚拟制造技术的运用——评《塑料机械设计与选用手册》

进入21世纪,随着社会经济的快速发展,塑料机械工程设计为了适应社会的发展,也要在各个方面不断创新,为了保证机械产品的质量问题,提高生产效率,虚拟制造技术在现代社会发展中显得尤为重要。
优质抗病弱感光型杂交水稻新组合犇优382

犇优382是广东海洋大学农学院、广西百香高科种业有限公司和广东天弘种业有限公司合作育成的弱感光型三系杂交水稻新组合,具有丰产性好、米质优、抗倒力强、抗稻瘟病等特点,2018年通过广东省农作物品种审定委员会审定。
两系杂交水稻新组合T两优164高产制种技术

T两优164是福建六三种业有限责任公司、福建旺福农业发展有限公司、三明市农业科学研究院利用T108S与明恢164配组育成的两系杂交水稻新组合,2017年通过福建省农作物品种审定委员会审定。介绍了T两优164制种亲本的特征特性及其高产制种技术。
不同育秧基质对杂交水稻制种母本秧苗素质的影响

以红莲型不育系中莲1A为材料,比较了6种育秧基质条件下秧龄16 d时的秧苗素质。结果表明:1/2“万年翠”基质+1/2自然土+25 g壮秧剂混合基质的成秧率和盘结力较高,并且秧苗的地上部形态优于其他基质。最长不定根长度以1/2“万年翠”基质+1/2自然土+25 g壮秧剂混合基质最长,其他根系性状以”万年翠”基质为优。综合出苗率、成秧率、盘结力、秧苗地上部形态和根系性状等方面,以1/2“万年翠”基质+1/2自然土+25 g壮秧剂混合基质培育的秧苗素质更好。
成人颈部异位胸腺囊肿一例

1例23岁女性左侧颈部异位胸腺囊肿患者的临床资料,患者临床主要表现左侧颈部肿块,质软,表面光滑;影像特点为左侧颈动脉鞘外侧、胸锁乳突肌内侧软组织肿块影,增强扫描病灶中心不强化、囊壁呈环形强化。病理检查诊断胸腺囊肿。
齐拉西酮联合奥氮平对老年难治性精神分裂症患者症状及血清瘦素和脑源性神经营养因子水平的影响

目的探讨老年难治性精神分裂症患者以齐拉西酮、奥氮平配伍治疗的临床效果,为老年难治性精神分裂症的治疗提供依据。方法选取2015年10月至2018年1月丽水第二人民医院收治的127例老年难治性精神分裂症患者作为研究对象,按随机数字表法分为联合治疗组64例和对照组63例。对照组以奥氮平治疗,联合治疗组以齐拉西酮、奥氮平配伍治疗。比较两组疗效、治疗前及治疗12周后阳性和阴性症状量表(PANSS)评分、体质指数(BMI)、血清瘦素(Leptin)、空腹血糖(FPG)、总胆固醇(TC)、脑源性神经营养因子(BDNF)、神经生长因子(NGF)水平及不良反应。用SPSS21.0软件进行数据的统计分析,计数资料的比较用χ~2检验,计量资料的比较用t检验。结果联合治疗组总有效率为93.75%,高于对照组(80.95%),差异有统计学意义(P<0.05)。治疗前两组患者实验室各指标水平比较,差异均无统计学意义(P>0.05);治疗12周后两组患者血清BDNF、NGF水平均较治疗前明显升高,且联合治疗组治疗后明显高于对照组,差异均有统计学意义(P<0.01),治疗12周后联合治疗组血清Leptin水平明显高于治疗前和对照组治疗后,差异均有统计学意义(P<0.05),对照组治疗12周后FPG、TC水平均明显高于治疗前,且明显高于联合治疗组治疗后,差异均有统计学意义(P<0.01)。治疗前两组患者PANSS评分、BMI比较,差异均无统计学意义(P>0.05);治疗12周后两组患者PANSS评分均较治疗前明显降低,BMI明显升高,且联合治疗组治疗12周后PANSS评分和BMI均明显低于对照组,差异均有统计学意义(P<0.01)。两组患者治疗中均未出现严重的不良反应,未影响继续治疗。结论以齐拉西酮、奥氮平配伍治疗老年难治性精神分裂症患者效果显著,安全性高,值得临床推广。
国内外社区严重精神障碍患者管理概述

严重精神障碍是指疾病症状严重,导致患者社会适应等功能严重损害,对自身健康状况或者客观现实不能完整认识,或者不能处理自身事务的精神障碍。严重精神障碍主要包括精神分裂症、双相(情感)障碍、偏执性精神病、分裂情感性障碍、癫痫所致精神障碍和精神发育迟滞伴发精神障碍6种精神疾病。根据资料显示,目前我国有约1 600万重性精神疾病患者,其中精神分裂症患者约780多万。严重精神障碍患者患病率高,病程长,病情容易反复,且很多患者会出现因为疾病而导致伤害自己或伤害他人的情况,成为国内外社区管理的重点人群。
代餐饮食主导的生活方式管理对2型糖尿病患者的影响

目的探讨代餐饮食主导的生活方式管理对2型糖尿病防治的效果,为2型糖尿病的防治探索简便有效的干预方法。方法于2017年3-8月选取132例在延安大学附属医院诊治的2型糖尿病患者,根据患者意愿将其分为干预组和对照组,各66例,干预42 d。干预组给予代餐包辅以个性化餐单、有氧运动、一对一健康指导的综合干预手段进行干预;对照组予以传统的糖尿病饮食兼有氧运动并根据病情予以降糖药物。比较两组干预前和干预结束后第16天停药减药情况及体重、身体脂肪率(简称体脂率)、体质指数(BMI)、内脏脂肪率(简称内脂率)、腰围,空腹血糖(FPG)、糖化血红蛋白(HbA_(1C))、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)、甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDLC)和低密度脂蛋白胆固醇(LDL-C)的变化情况。用SPSS 22.0软件进行配对t检验、独立样本t检验和χ~2检验。结果干预期间,干预组停药、减药率为90.9%(60/66),对照组无停药减药者。干预前,两组患者体脂率、TG、TC、HDL-C、LDL-C、FPG、FINS、HbA_(1C)水平比较,差异均无统计学意义(P>0.05);干预组体重、内脂率、腰围、BMI、HOMA-IR较对照组高,差异均有统计学意义(P<0.05)。干预后,干预组体重、BMI、腰围、体脂率和内脂率均较干预前下降,对照组仅BMI、体脂率较干预前降低,差异均有统计学意义(P<0.05)。干预后,干预组FPG、FINS、HOMA-IR、HbA_(1C)、TG、TC和LDL-C水平均较干预前降低,HDL-C水平较干预前升高,差异均有统计学意义(P<0.05)。干预后,对照组仅TC水平较干预前降低,差异有统计学意义(P<0.05);FPG、FINS、HOMA-IR、HbA_(1C)、TG、TC和LDL-C水平与干预前比较,差异均无统计学意义(P>0.05)。干预组干预前后体重、BMI、腰围、体脂率、内脂率、TG、TC、LDL-C、HDL-C、FPG、FINS、HbA_(1C)、HOMA-IR差值变化均较对照组显著,差异均有统计学意义(P<0.05)。干预期间,两组各有3例患者出现低血糖反应,差异无统计学意义(P>0.05)。结论对2型糖尿病患者进行代餐饮食主导的生活方式管理可以有效减重、控制血糖、调节血脂、减轻胰岛素抵抗,并可在干预期间停药或减少降糖药物的剂量。
中等强度有氧运动对原发性高血压患者动态血压和内皮素及一氧化氮水平的影响

目的探讨原发性高血压患者接受中等强度有氧运动后的治疗效果,为原发性高血压的治疗提供依据。方法随机选取大连大学附属中山医院2015年1月至2018年1月收治的122例原发性高血压患者作为研究对象,随机分为运动组和常规组,每组61例。常规组患者生活习惯不变,不予以任何运动训练,而运动组患者则接受为期7周的中等强度有氧训练,比较干预前后两组患者动态血压、血浆内皮素和一氧化氮(NO)水平的变化。用SPSS 20.0统计学软件对数据进行t检验。结果试验前,两组患者动态血压、血浆内皮素和NO水平比较,差异均无统计学意义(P>0.05),完成7周的训练后,运动组患者的动态血压、血浆内皮素及NO水平均明显低于试验前,且明显低于常规组,差异均有统计学意义(P<0.05,P<0.01)。结论原发性高血压患者接受中等强度有氧运动训练可以改善自身内分泌功能,在降低动态血压的同时,还能够调节血浆内皮素及NO水平,有助于加快患者的康复进程,在患者康复治疗的过程中可以加大应用和借鉴力度。
产后卵巢静脉血栓性静脉炎1例

产后OVT是分娩后罕见并发症,若延误治疗可致严重后果。因其非特异性表现及临床医生对该病认识不足,使其诊断受到挑战。对产后腹痛、反复高热,且经抗生素治疗无效者应高度怀疑,及时的影像学检查至关重要。目前仍推荐抗凝、抗感染联合治疗。鉴于我国居高不下的剖宫产率,产后OVT的发病率可能会进一步增加。对本病例的分析希望对临床工作者认识该病有一定帮助,以便及时诊疗,减少不良后果。
Is Nitrous Oxide Reduction Primarily Regulated by the Fungi-to-Bacteria Abundance Ratio in Fertilized Soils?

The production of nitrous oxide (N_2O) is a widespread trait in fungi and is of interest because denitrifying fungi lack the N_2O reductase gene (nosZ) that regulates N_2O reduction to nitrogen gas (N_2). The adaptive ability of soil fungi is better than that of bacteria in acidic soils. We investigated the N_2O reduction potential, described by the N_2O product ratio (RN_2O), N_2O/(N_2O+N_2), in soils of different types of fields under crop cultivation with different fertilizer inputs and a bare fallow field with no fertilization as a control. The fungi-to-bacteria abundance ratio (RF=B) was negatively correlated (P < 0:01) with the natural pH of the soil; however, the high value of RF=B measured in vineyards was due to the large inputs of manure. When the denitrification potential was measured at natural pH values of soils, RN_2O was negatively correlated (P < 0:01) with soil pH. When the denitrification potential was measured after short-term modifications of soil pH, however, no significant correlation was found between RN_2O and the modified pH. Based on stepwise multiple regression analysis, soil pH and residual nitrate (NO_3~- ) were the key factors regulating N_2O reduction in soils at natural pH values (R2 = 0:88, P < 0:001), whereas the key factor was the soil residual NO_3~- alone (R~2 = 0:83, P < 0:001) when the soil pH was modified. When the effect of the soil chemical properties was weakened, a high RF=B value had the potential (P < 0:01) to affect N_2O reduction; however, the role of fungi was offset by the presence of denitrifying bacteria. These results provide evidence that compared to the indirect effects of RF=B, the direct effects of the soil chemical properties have a greater effect on N_2O reduction in fertilized soils.
毫米波环行器平面化进展及自偏置六角铁氧体研究述评

如第2节所述,自偏置环行器工程化应用的主要障碍是插入损耗偏大,其原因主要是来自于材料的微波电磁损耗。下面分别讨论介电损耗tan δe和磁损耗DH,以及进一步降低DH的可能性。
修薄的股前外侧穿支皮瓣修复多个手指软组织缺损

目的探讨应用以修薄的股前外侧穿支(ALTP)皮瓣修复多个手指软组织缺损创面的手术方法和效果。方法2007年6月至2017年9月,共收治多个手指损伤8例,其中男6例,女2例,年龄17~51岁,平均(31.7±5.3)岁;致伤原因:压砸伤4例,车祸伤2例,机器伤2例;伤及2个手指5例,伤及3个手指3例,均伴有骨、关节和肌腱外露,伴有骨折或者关节脱位,无明显骨和关节缺损。清创后采用VSD处理,并采用修薄的ALTP皮瓣修复手指软组织缺损,皮瓣大小5.0 cm×12.5 cm~8.5 cm×23.0 cm,二期行分指加指蹼成形加皮瓣修薄术。术后定期随访。结果本组8例均完全成活,其中2例有皮瓣远端表皮坏死,经换药后愈合,其余皮瓣均顺利成活。术后随访8~18个月,平均(10.5±2.1)个月,皮瓣外形良好,稍臃肿,有少许色素沉着,手指屈伸功能良好,可完成对指、对掌,恢复保护性触觉。皮瓣供区留线形瘢痕。结论以修薄的ALTP皮瓣一次性覆盖多个手指软组织缺损创面,二期分指和指蹼成形,可简化治疗方式,减少手术并发症,减轻患者负担,是修复多个手指创面缺损的较好的方法之一。
臂桡侧副动脉穿支皮瓣修复(足母)趾腓侧皮瓣和(足母)甲瓣术后供区

目的探讨应用臂桡侧副动脉穿支皮瓣修复(足母)趾腓侧皮瓣和(足母)甲瓣术后供区创面的方法及疗效。方法2016年6月至2017年12月,应用臂桡侧副动脉穿支皮瓣移植修复(足母)趾腓侧皮瓣和(足母)甲瓣术后供区9例((足母)趾腓侧皮瓣切取术后供区4例,(足母)甲瓣切取术后供区5例),其中男6例,女3例,年龄18~47岁,平均38岁。(足母)趾供区缺损面积:2.5 cm×3.0 cm~3.5 cm×6.0 cm,臂桡侧副动脉穿支皮瓣切取面积3.0 cm×4.0 cm~ 4.0 cm×7.0 cm。臂桡侧副动脉穿支皮瓣供区直接闭合。定期随访,内容包括:伤口愈合情况、皮瓣外形及感觉、供区瘢痕、并发症等情况。结果术后9例皮瓣全部成活,其中2例边缘少许坏死结痂,换药处理后愈合。臂桡侧副动脉穿支皮瓣供区呈线状瘢痕。9例随访时间6(3~12)个月,皮瓣外形饱满,无磨损破溃发生,均恢复了保护性感觉。结论臂桡侧副动脉穿支皮瓣解剖较恒定,切取方便,是修复(足母)趾腓侧皮瓣和(足母)甲瓣术后供区可靠的修复方法之一。
健侧胫后动脉穿支皮瓣交腿移植修复小腿软组织缺损创面九例

目的探讨健侧胫后动脉穿支皮瓣交腿移植治疗小腿软组织缺损创面的临床效果。方法自2006年3月至2018年3月,共收治小腿开放性骨折内固定术后软组织感染、坏死缺损9例,缺损面积7.0 cm× 10.0 cm~11.0 cm×20.0 cm,创面均有骨和肌腱外露,并有不同程度脓性分泌物。均在清创后应用VSD处理5~ 15 d,并根据细菌培养及药敏结果选择抗菌药物治疗,当创面清洁、炎症控制后采用健侧小腿胫后动脉穿支皮瓣交腿移位修复。切取皮瓣面积16.0cm×9.0 cm~22.0cm × 12.0 cm,术后3~4周断蒂。术后定期采用门诊、电话或微信随访,观察皮瓣的血运、色泽、质地及修复肢体功能恢复情况,评定治疗效果。结果术后8例皮瓣完全成活,1例皮瓣边缘坏死,清创缝合痊愈,创面均修复成功。随访3个月~2年,皮瓣血运良好,外形不臃肿;1年后复查胫、腓骨X线示骨折均愈合,小腿膝关节、踝关节屈伸功能正常,正常负重行走。结论应用健侧胫后动脉穿支皮瓣交腿移位修复小腿软组织缺损创面,临床效果良好。
Synthesis and Properties of Reversible Disulfide Bond-based Self-healing Polyurethane with Triple Shape Memory Properties

A reversible disulfide bond-based self-healing polyurethane with triple shape memory properties was prepared by chain extending of random copolymer poly(lactide-co-caprolactone) (PCLA), hexamethylene diisocyanate (HDI), polytetrahydrofuran (PTMEG), and 4,4′-aminophenyl disulfide. The chemical structures were characterized using 1H nuclear magnetic resonance (~1H-NMR) spectroscopy, Fourier transform infrared spectroscopy (FTIR), and gel permeation chromatography (GPC). The thermal properties, selfhealing properties, triple-shape memory effect, and quantitative shape memory response were evaluated by differential scanning calorimetry (DSC), tensile tests, two-step programming process thermal mechanical experiments, and subsequent progressive thermal recovery. The self-healing mechanism and procedures were investigated using polarizing optical microscopy (POM) and an optical profiler. It was concluded that self-healing properties (up to 60%) and triple-shape memory properties around 35 and 50 °C (with shape fixation ratios of 94.3% and 98.3%, shape recovery ratios of 76.6% and 85.1%, respectively) were integrated to the shape memory polyurethane. As-prepared polyurethane is expected to have potential applications in multi-shape coatings, films, and step-by-step deploying structures.
Assessment of an Evapotranspiration Deficit Drought Index in Relation to Impacts on Ecosystems

Ecosystems have increasingly been subject to the challenge of heavy drought under global warming. To quantitatively evaluate the impacts of drought on ecosystems, it is necessary to develop a drought index that can sensitively depict the response of vegetation to drought evolution at a biological time scale. For the ability of direct connection between climate and ecosystem by deficit of evapotranspiration, in the present study, a drought index was defined based on standardized evapotranspiration deficit (SEDI), according to the difference between actual and potential evapotranspiration, to meet the need for highlighting drought impacts on ecological processes. Comparisons with traditional indices show that SEDI can reasonably detect droughts and climatic dry and wet transitions, especially at a monthly time scale, and can also regenerate long-term trends. Moreover, SEDI can more sensitively capture the biological changes of ecosystems in response to the dynamics of drought intensity, compared with the indices of precipitation and temperature. SEDI is more practical than the precipitation and temperature indices to highlight signals of biological effects in climate droughts. Hence, it has potential for use in assessments of climate change and its impact on ecosystems.
颈部滑膜肉瘤侵及甲状腺一例

滑膜肉瘤患者的5年生存率约为60%,10年生存率约为50%。肿瘤大小已被确定为预后指标,但对于其截止值存在一些争议。颈部滑膜肉瘤的发病率低,预后较差,对于颈部来源不明肿物,尤其是颈部淋巴结正常时,应考虑滑膜肉瘤的可能,以期给予临床正确指导,提高患者的生存率。
ON FIXED POINTS OF MEROMORPHIC FUNCTIONS f(z) AND f(z + c),∆cf(z)

Let c be a nonzero constant and f(z) be a transcendental meromorphic function of finite order. Under some conditions, we study the relationships between the exponent of convergence of fixed points of f(z), its shift f(z +c) and forward differences ∆_c~n f(z), n ∈ N~+.
Coronas around Olivine in the Miaowan Olivine Norite,Yangtze Craton,South China

Coronitic microstructures have been used to interpret the late-stage solidification history of igneous rocks and to constrain the corresponding chemical and/or physical changes.Coronas with three shells were also recognized in the Miaowan olivine norite,Yangtze Craton,South China.In our study,orthopyroxene intergrowth with vermicular magnetite in the inner shell is in optical continuity with magnetite-free orthopyroxene in the middle shell.In the outer shell of brown amphibole remaining magnetite-free orthopyroxene inclusions sporadically occur.Meanwhile Mg# values of orthopyroxene (76-80) in the inner and middle shells are basically consistent with olivine (78-81).In this paper,we propose a multi-stage genetic model for the formation of coronas in the Miaowan olivine norite.In the first stage,the magnetite-free orthopyroxene shell formed through reaction between primocrystal olivine with the residual Si-rich melt at 990-1 053 °C and 6.2-6.5 kbar.In the second stage,the orthopyroxene-magnetite symplectite shell formed when primocrystal olivine reacted with the late-stage residual Fe-rich melt promoted by high oxygen fugacity condition at 927-1 035 °C and 6.0-6.5 kbar.In the third stage,the brown amphibole shell formed as the presence of residual hydrous melt and replaced the middle shell at 821-900 °C and 5.5-6.0 kbar.