mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Reduction on OFF-responses of Electroretinogram in Monkeys with Long-term High Intraocular Pressure

Background: There are ON- and OFF-pathways in the normal vertebrate retina. Short- and long-flash electroretinogram (ERG) are suitable methods to observe the function of ON- and OFF-pathways in vivo, respectively. It is clear that high intraocular pressure (IOP) might cause dysfunction of cone-dominated photopic negative response (PhNR) in monkeys with high IOP in ON-pathway. However, whether cone-dominated OFF-responses are also affected is less known. The aim of this study was to observe photopic OFF-responses of ERG in monkeys with high IOP. Methods: Nine monkeys were involved in the experiment from January 2006 to December 2016. High IOP was induced in the right eye by laser coagulation of the mid-trabecular meshwork in five monkeys. Six years after the laser coagulation, both short- and long-flash of the photopic ERG were recorded. Stimulus light was red flashes superimposed on a blue background. Four normal monkeys were examined under the same ERG protocols as controls. Paired t-test was used to compare the difference of each ERG parameter between the lasered eye and the fellow eye. Analysis of variance (ANOVA) with Tukey adjustment was adopted to calculate the differences among the lasered eye, the fellow eye, and the eyes of normal monkeys. Results: The mean amplitude of a-wave (11.73 ± 2.05) and PhNR (8.67 ± 2.44) in lasered eyes was significantly lower than that of a-wave (21.47 ± 3.15) and PhNR (22.05 ± 3.42) in fellow eyes (P = 0.03 and P= 0.01,respectively) in response to short flash. The mean amplitude of d-wave (1.60 ± 0.59) and i-wave (3.13 ± 0.64) was significantly reduced in the lasered eyes than that of d-wave (4.01 ± 0.56) and /-wave (8.79 ± 1.75) in the fellow eyes (P = 0.02 and P = 0.02, respectively) in response to long flash. Conclusions: Reduced OFF-responses are recorded in monkeys with high IOP when dysfunction of photoreceptor is involved. The reduced OFF-responses to long-flash stimulus show evidence of anomalous retinal circuitry in glaucomatous retinopathy.
单克隆IgM相关轻链型淀粉样变的临床特征和预后分析

在轻链型(AL型)淀粉样变中,最常见的单克隆免疫球蛋白(M蛋白)类型为IgG和IgA型,IgM和IgD型相对少见。既往文献显示,IgM-AL型淀粉样变仅占所有AL型淀粉样变的不足10%,且IgM-AL型淀粉样变起病更晚,淋巴结受累更多见。本研究回顾性分析我院确诊的IgM-AL型淀粉样变患者的临床、实验室检查特征、治疗及生存数据,以提高对此类疾病的认识。
产单核细胞李斯特菌感染的临床和实验室检查分析

目的分析产单核细胞李斯特菌感染的临床和实验室特点,以期为李斯特菌感染的临床诊断和治疗提供一定的依据。方法回顾性分析2012年1月至2016年10月间四川大学华西医院收治的26例产单核细胞李斯特菌败血症和脑膜炎患者的临床资料和实验室检查,同时收集26例其他细菌性脑膜炎患者的脑脊液检查结果作为对照。结果26例产单核细胞李斯特菌感染的患者中,14例为败血症,12例为脑膜炎。年龄大于50岁的患者居多,占46.2%。22例住院患者中18例(81.8%)患有基础疾病,9例(40.9%)患者曾接受过糖皮质激素或者免疫抑制剂治疗。20例确诊后经治疗的患者中,17例好转出院,3例预后不佳,30.0%(共6例,好转患者4例,预后不佳2例)的患者接受了不恰当的经验性治疗。脑脊液检查结果显示产单核细胞李斯特菌脑膜炎患者脑脊液白细胞和蛋白质升高,葡萄糖降低,58.3%以多个核细胞增多为主。与其他细菌性脑膜炎相比,产单核细胞李斯特菌脑膜炎患者脑脊液白细胞、蛋白质和氯水平差异无统计学意义(P>0.05),但葡萄糖水平更高(P=0.001)。结论产单核细胞李斯特菌的感染主要发生在免疫低下和老年人中。产单核细胞李斯特菌脑膜炎脑脊液检查可能缺乏典型的细菌性脑膜炎改变,脑脊液葡萄糖水平较正常水平降低不明显。
Microstructure and mechanical properties of 20Si2CrNi3MoV steel treated by HDQP process

A combined process of hot-deformation plus two-step quenching and partitioning (HDQP) treatment was applied to a low-carbon 20Si2CrNi3MoV steel, and transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers hardness and tension test were used to characterize the microstructure and mechanical properties. More stable retained austenite due to fine microstructures and typical curved micromorphology is obtained, and the newly-treated steel obtains more retained austenite because of the effect of hot deformation. The retained austenite fraction increases and then decreases with the increasing quenching temperature from 200 to 350°C. The maximum retained austenite fraction (18.3%) and elongation (15%) are obtained to enhance the ductility.
Different dissecting orders of the pulmonary bronchus and vessels during right upper lobectomy are associated with surgical feasibility and postoperative recovery for lung cancer patients

Background: Right upper lobectomy (RUL) for lung cancer with different dissecting orders involves the most variable anatomical structures, but no studies have analyzed its effects on postoperative recovery. This study compared the conventional surgical approach, VAB (dissecting pulmonary vessels first, followed by the bronchus), and the alternative surgical approach, aBVA (dissecting the posterior ascending arterial branch first, followed by the bronchus and vessels) on improving surgical feasibility and postoperative recovery for lung cancer patients. Methods: According to the surgical approach, consecutive lung cancer patients undergoing RUL were grouped into aBVA and VAB cohorts. Their clinical, pathologic, and perioperative characteristics were collected to compare perioperative outcomes. Results: Three hundred one patients were selected (109 in the aBVA cohort and 192 in the VAB cohort). The mean operation time was shorter in the aBVA cohort than in the VAB cohort (164 vs. 221 min, P < 0.001), and less blood loss occurred in the aBVA cohort (92 vs. 141 mL, P < 0.001). The rate of conversion to thoracotomy was lower in the aBVA cohort than in the VAB cohort (0% vs. 11.5%, P < 0.001). The mean duration of postoperative chest drainage was shorter in the aBVA cohort than in the VAB cohort (3.6 vs. 4.5 days, P = 0.001). The rates of postoperative complications were comparable (P = 0.629). The median overall survival was not arrived in both cohorts (P > 0.05). The median disease-free survival was comparable for all patients in the two cohorts (not arrived vs. 41.97 months) and for patients with disease recurrences (13.25 vs. 9.44 months) (both P > 0.05). The recurrence models in two cohorts were also comparable for patients with local recurrences (6.4% vs. 7.8%), distant metastases (10.1% vs. 8.3%), and both (1.8% vs. 1.6%) (all P > 0.05). Conclusions: Dissecting the right upper bronchus before turning over the lobe repeatedly and dissecting veins via the aBVA approach during RUL would promote surgical feasibility and achieve comparable postoperative recovery for lung cancer patients.
A study on fatigue damage of asphalt mixture under different compaction using 3D-microstructural characteristics

The aim of this paper is investigating the microstructural characteristics of asphalt mixture under different compaction powers. In order to achieve this aim, a test track was built to provide asphalt mixture specimens and X-ray computed tomography (XCT) device was used to scan the internal structure. The aggregate particles and air-voids were extracted using Digital Image Processing (DIP), so the relationship between compaction and air-voids was determined at first, and then, the effect of aggregate particles on the morphology of air-voids can be evaluated, finally, fatigue properties of asphalt mixture with different air-void ratio were measured by indirect tensile fatigue test as well. The research results release the distribution of microstructures in asphalt pavement. 3D fractal dimension is an effective indicator to quantize the complexity of aggregate particles and air-voids; suffering the same compaction power, aggregates cause different constitutions of air-voids in asphalt mixture; investigation in this paper can present the essential relationship between microstructures and fatigue properties.
Multiple fault separation and detection by joint subspace learning for the health assessment of wind turbine gearboxes

The gearbox of a wind turbine (WT) has dominant failure rates and highest downtime loss among all WT subsystems. Thus, gearbox health assessment for maintenance cost reduction is of paramount importance. The concurrence of multiple faults in gearbox components is a common phenomenon due to fault induction mechanism. This problem should be considered before planning to replace the components of the WT gearbox. Therefore, the key fault patterns should be reliably identified from noisy observation data for the development of an effective maintenance strategy. However, most of the existing studies focusing on multiple fault diagnosis always suffer from inappropriate division of fault information in order to satisfy various rigorous decomposition principles or statistical assumptions, such as the smooth envelope principle of ensemble empirical mode decomposition and the mutual independence assumption of independent component analysis. Thus, this paper presents a joint subspace learning-based multiple fault detection (JSLMFD) technique to construct different subspaces adaptively for different fault patterns. Its main advantage is its capability to learn multiple fault subspaces directly from the observation signal itself. It can also sparsely concentrate the feature information into a few dominant subspace coefficients. Furthermore, it can eliminate noise by simply performing coefficient shrinkage operations. Consequently, multiple fault patterns are reliably identified by utilizing the maximum fault information criterion. The superiority of JSL-MFD in multiple fault separation and detection is comprehensively investigated and verified by the analysis of a data set of a 750 kW WT gearbox. Results show that JSL-MFD is superior to a state-of-the-art technique in detecting hidden fault patterns and enhancing detection accuracy.
Characterization of landfilled stainless steel slags in view of metal recovery

The slag samples taken from landfill, which originated from different metallurgical processes, have been characterized in this study. The slags were categorized as electric arc furnace (EAF) slag, argon oxygen decarburization/metal refining process slag and vacuum oxygen decarburization slag based on chromium content and basicity. EAF slags have higher potential in metal recovery than the other two slags due to its higher iron and chromium contents. The size of the iron-chromium-nickel alloy particles varies from a few μm up to several cm. The recoveries of large metal particles and metal-spinel aggregates have potential to make the metal recovery from landfilled slags economically viable.
Applications incorporating occupant behavior into building simulation

The building simulation community is paying increased attention to occupant behavior. Many interdependencies between building systems and their human users exist. Behavioral factors often affect building performance, even as building systems affect the comfort, satisfaction, and productivity of occupants. Researchers have proposed variety of strategies for incorporating consideration of occupant behavior into building applications such as performance modeling and simulation, equipment controls and whole building energy optimization. It is also timely to explore the fit between modeling approaches and specific applications.
Silencer design for awning windows: Modified Helmholtz resonators with perforated foam

In order to dissipate sound which passes through an open awning window, we have developed a hybrid absorber made of a modified Helmholtz resonator with perforated foam. Generally, acoustic absorbers are divided into two major categories. The first one is porous materials which dissipate the acoustic wave in a visco-inertial form and heat. The second category is systems which absorb the energy of the acoustic wave by resonance. The aim of this work was to design a hybrid absorber which incorporates the benefits of the two categories for both high frequencies (conventional foam) and low frequencies (resonator). After describing the concept and the principles, we present the prototype which was built and tested under laboratory conditions between two reverberant rooms to attenuate the sound when an awning window is open. The prototype allows reduction of noise transmission (up to 6 dB) at low and high frequencies.
Weighted Moore-Penrose inverses and fundamental theorem of even-order tensors with Einstein product

We treat even-order tensors with Einstein product as linear operators from tensor space to tensor space, define the null spaces and the ranges of tensors, and study their relationship. We extend the fundamental theorem of linear algebra for matrix spaces to tensor spaces. Using the new relationship, we characterize the least-squares (M) solutions to a multilinear system and establish the relationship between the minimum-norm (N) least-squares (M) solution of a multilinear system and the weighted Moore-Penrose inverse of its coefficient tensor. We also investigate a class of even-order tensors induced by matrices and obtain some interesting properties.
THESEUSi positively modulates plant defense responses against Botrytis cinerea through GUANINE EXCHANGE FACTOR4 signaling

The plant cell wall is an important interface for sensing pathogen attack and activating signaling pathways that promote plant immune responses. THESEUS1 (THE1) acts as a sensor of cell wall integrity that controls cell elongation during plant growth. However, no specific role for THE1 in plant defense responses has been reported. Here, we found that THE1 interacts with GUANINE EXCHANGE FACTOR4 (GEF4) and that both proteins play regulatory roles in plant resistance to the necrotrophic fungus Botrytis cinerea. Genetic analysis showed that THE1 and GEF4 function in the same genetic pathway to mediate plant defense responses. In addition, using transcriptome analysis, we identified various genes (such as defense-related, secondary metabolite-related, and transcription factor genes) that are likely downstream targets in the THE1-GEF4 signaling pathway. Our results suggest that THE1 functions as an upstream regulator of GEF4 signaling to positively regulate defense responses against B. cinerea in Arabidopsis.
Variation in Antioxidants, Bioactive Compounds and Antioxidant Capacity in Germinated and Ungerminated Grains of Ten Rice Cultivars

Present study was conducted to characterise ten rice (Oryza sativa L.) cultivars viz. IET-23466, Dhan-201, IET-23448, MAS-946, IET-23445, IET-23463, IET-23455, PR-123, PR-115 and IET-23449 based on antioxidants (total phenolics, flavonols and tannins), bioactive compounds (phytic acid, gamma amino butyric acid, tocopherol and reduced ascorbate) and antioxidant activity (1,1-diphenyl-2- picrylhydrazyl radical scavenging activity, hydroxyl radical scavenging activity, free radical antioxidant power and total reducing power) with an aim to identify cultivars containing higher health promoting components after germination. Three cultivars IET-23466, IET-23463 and PR-123 performed better as revealed by higher level of antioxidants, bioactive compounds and antioxidant activity before and after germination. Three cultivars MAS-946, IET-23445 and IET-23449 had moderate level of antioxidants, bioactive compounds and antioxidant activity. Four cultivars Dhan-201, IET-23448, IET-23455 and PR-115 performed intermediately. Strong positive correlation was observed among total phenolics and the antioxidant activity. Phytic acid was found to be negatively correlated to the antioxidant activity. Our results highlighted that cultivars IET-23466, IET-23463 and PR-123 hold great potential after germination and would open up a useful opportunity for the functional food industry, and consumption of these cultivars after germination would afford health benefits to consumers since they contain higher level of antioxidants.
食管闭锁术后食物过敏引发难治性吻合口狭窄一例报告

讨论Krishnan等在对103名先天性食管闭锁患儿的研究中发现,有18名患儿(17%)同时合并有EoE。EoE是一种以嗜酸性细胞浸润食管壁为主要特征的慢性食管炎性反应的疾病。食管病理组织学为EoE诊断提供了金标准,食管组织取样,每高倍镜视野下超过15个嗜酸性粒细胞,诊断即可成立。先天性食管闭锁手术治疗后,容易出现吻合口狭窄,食管球囊扩张术是治疗吻合口狭窄的首选方法。但在4次球囊扩张术后,该患者的症状并未完全缓解,反复出现吻合口狭窄。目前为止大多数临床医师行食管球囊扩张术都不做食管黏膜活检。本文通过1个病例报道,希望临床医师警惕因食物过敏促成EoE的形成,导致吻合口反复狭窄。并在日后行扩张术时,同时钳取吻合口附近的食管黏膜行病理检查,避免延误患儿的病情与治疗。第5次球囊扩张术后,取患者食管上段、狭窄口和下段黏膜做病理检查,结果提示,食管下段和狭窄口附近处发生嗜酸性粒细胞浸润,最多处35个/高倍视野,确诊为EoE。由于有狭窄口的阻隔,故食管狭窄口以上的食管壁无明显可见的炎性反应改变。在先天性食管闭锁术后的患儿中,由于食管壁黏膜的屏障功能损伤,增加了食物对机体的致敏作用,促进了 EoE的形成,提示食物过敏可能与EoE的形成有关。食物过敏又是胃食管反流的病因之一,胃食管反流容易导致食管糜烂、充血和水肿,进一步损伤食管壁黏膜。该患者查食人物变应原IgE的结果提示其对牛奶蛋白过敏,随后改为氨基酸配方粉喂养,加强口服强的松等治疗后,食管狭窄的临床症状缓解,进食软饭无呕吐。因此,临床上遇见难治性吻合口狭窄的患者,需做食管黏膜的病理检查,排除EoE的形成,同时行食物过敏原检测。若确诊为EoE应回避过敏食物,予激素治疗疗效更佳。
Low-Profile Dual-Polarized Planar Antenna with Compact Structure for Base Stations

A low-profile dual-polarized planar antenna with compact structure for 2.4GHz Wireless local area network (WLAN) and 2.5GHz Long term evaluation (LTE2500) base stations is proposed. A combination of a planar radiator and compact Artificial magnetic conductor (AMC) reflector is utilized to achieve a full planar structure without adding extra matching circuit, an extremely low-profile of 0.127 wavelength, as well as a high front to back ratio (F/B) of 25dB. The antenna is fabricated to test the performance such as S-parameters, radiation patterns and peak gain. Reasonable results show the suitability of the proposed antenna for 2.4GHzWLAN and LTE2500 applications.
A Novel Through-the-Wall Imaging Algorithm Combined with Phase Shift Migration and NUFFT

This paper proposes a novel Through wall imaging (TWI) algorithm combined with phase compensation and Nonuniform fast Fourier transform (NUFFT). The wall effect is cancelled with phase compensation, which is implemented by multiplying the conjugated wall transmissivity with the received echoes. The NUFFT technique is implemented to calculate the imaging results. The proposed method has two merits: The phase compensation avoids a time-consuming calculation of the incidences angles; the image is reconstructed more accurately and efficiently than the conventional Interpolation-fast Fourier transform (IPFFT) method. The new method is implemented on 2D synthetic-generated data and experimental data. The results demonstrate that our method generates high quality focused images and achieves target geometrical identification within a very short time.
Person Re-identification Across Multiple Non-overlapping Cameras by Grouping Similarity Comparison Model

We propose a novel algorithm to solve the problem of person re-identification across multiple nonoverlapping cameras by grouping similarity comparison model. We use an image sequence instead of an image as a probe, and divide image sequence into groups by the method of systematic sampling. Then we design the rule which uses full-connection in a group and non-connection between groups to calculate similarities between images. We take the similarities as features, and train an AdaBoost classifier to match the persons across disjoint views. To enhance Euclidean distance discriminative ability, we propose a novel measure of similarity which is called Significant difference distance (SDD). Extensive experiments are conducted on two public datasets. Our proposed person re-identification method can achieve better performance compared with the state-of-the-art.
有关粉碎中药问题的再商榷

目的进一步规范粉碎中药的标准、生产、使用和监管。方法整理《中国药典2015版一部》中药粉碎品种、粉碎方法以及收载项下,对粉碎中药的标准、生产、使用、监管等方面进行再商榷,提出对策。结果与结论粉碎是一种炮制方法,区分“打碎”熬煮“打粉”直接内服或外用,建立质量标准,并加强监管,即可规范粉碎中药的混乱局面。
不同温度、浓度解毒洗剂治疗下肢静脉性溃疡的疗效分析

目的观察不同浓度、温度解毒洗剂外洗治疗下肢静脉性溃疡的临床疗效,优选最佳治疗方案。方法选取下肢静脉性溃疡患者48例,随机分为4组,每组12例。分别以不同温度、浓度解毒洗剂外洗患肢。A组:温度40℃,浓度1: 8L;B组:温度40℃,浓度1: 16L;C组:温度38℃,浓度1: 8L;D组:温度38℃,浓度1: 16L。观察治疗第14天、28天疮面的愈合情况及色泽、渗液量、疮面疼痛情况。结果经统计四组患者在治疗的第14天、28天均较治疗前在色泽、渗液量、疼痛方面均有明显改善(P < 0. 05),其中A组的显愈率达91. 67%,明显优于其余三组(P < 0. 05)。另外A、C组疮面色泽均优于B、D组(P < 0. 05);A、B组疮面疼痛缓解度较C、D组明显(P < 0. 05),但在第28天时A组疮面渗液量较D组多(P < 0. 05)。结论解毒洗剂外洗治疗下肢静脉性溃疡推荐温度40℃,药液与水的浓度比为1: 8。
三黄煎剂改善乳腺癌患者慢性应激状态30例临床研究

目的探讨三黄煎剂干预乳腺癌患者慢性应激状态的临床功效。方法将30例绝经后雌激素受体阳性乳腺癌患者随机分为治疗组与对照组,每组病例数各15例。对照组口服内分泌治疗,治疗组在原主治方案基础上加用三黄煎剂口服,每日一剂,3个月为1个周期,连续观察2个周期;两组患者每月观察记录应激症状积分、治疗前后分别检测血清氧化应激指标一氧化氮(NO)、超氧化歧化酶(SOD)、总抗氧化能力(T - AOC)含量。结果2月后,治疗组应激症状积分较对照组具有显著差异(P < 0. 01),6月后,应激积分降至3. 03分,完全缓解应激状态;6月后,对照组患者血清氧化应激指标较治疗前NO上升,血清抗氧化指标SOD水平及T - AOC水平较治疗前稍有下降,提示机体处于慢性应激状态;治疗组血清NO明显降低,显著低于治疗前及对照组(P < 0. 05);而血清SOD水平及T - AOC水平呈明显上升,高于治疗前及对照组,各指标均优于对照组(P = 0. 02或0. 01)。结论三黄煎剂可有效改善绝经后乳腺癌慢性应激状态,对乳腺癌内分泌治疗疗效与控制复发转移起到一定的辅助干预作用。
系统性红斑狼疮并发获得性血友病一例

总之,本文报道了SLE相对少见的并发症,虽AHA临床发病率低,但致死率高,临床上对于AHA正确诊断、及时治疗至关重要。对于突然发生,无既往出血史或阳性家族史,单纯APTT延长,且不能被正常血浆纠正的患者应该考虑AHA的可能,需进一步测定Ⅷ因子活性及Ⅷ因子抑制物的滴度,并追溯病史是否存在可以引起AHA的基础疾病,以免漏诊误诊,延误病情。
布拉氏酵母菌治疗重度念珠菌性食管炎一例

讨论念珠菌性食管炎主要由白色念珠菌侵入食管黏膜形成一种伪膜性或溃疡性感染所致,常发生于免疫功能受损的患者。其临床主要表现为吞咽困难和吞咽痛。近年来,因人口老龄化,抗生素、激素和免疫抑制剂等药物的广泛使用,内镜检查的普及和诊断水平的提高等因素,该病的发病率和检出率呈上升趋势。其治疗主要是应用抗真菌药物治疗,常用药物有制霉菌素、氟康唑等。该例患者服用制霉菌素治疗无效,这可能与念珠菌菌膜形成有关。
溃疡性结肠炎合并巨大息肉内镜黏膜下剥离术一例

讨论多中心的回顾性研究表明,UC病程长短与癌变风险密切相关。我国数据显示,UC确诊10年后结肠癌发病率为1.15%,UC确诊20年后结肠癌发病率为3.56%,30年后这一数值上升至14.36%。本例根据临床表现、内镜、组织病理学等进行综合分析确诊为UC,在慢性炎症基础上产生多发结直肠息肉,最大息肉位于齿状线上方约5 cm,大小为4.0 cm×3.0 cm,通过ESD完整切除,病理诊断为炎性息肉伴反应性间叶细胞增生。术后随访1年未见复发,阻断了其癌变风险。
胃癌根治术后早期应用帕瑞昔布对患者恢复的影响

目的:探讨胃癌根治术后早期应用帕瑞昔布对患者恢复的影响。方法:选择89例接受胃癌根治术(D2)患者按随机数字表法分为帕瑞昔布组(术后第1天开始应用帕瑞昔布)44例和传统手术组45例。对比两组患者康复相关指标:术后疼痛评分、术后肛门首次排气时间、术后住院时间以及术后并发症发生率。结果:帕瑞昔布组患者术后疼痛评分、肛门首次排气时间和术后住院时间均显著优于传统手术组(P<0.05);帕瑞昔布组患者术后并发症与传统手术组无明显差异(P>0.05)。结论:术后早期应用帕瑞昔布有利于减轻胃癌根治术患者术后疼痛,促进胃肠功能的恢复,减少住院时间,促进患者的快速康复。
Influence of Nitrogen Vacancy Concentration on Mechanical and Electrical Properties of Rocksalt Zirconium Nitride Films

To study the influence of the nitrogen vacancy (VN) on mechanical and electrical properties of zirconium nitride deeply, ZrN_x films with different VN concentrations were synthesized on the Si (111) substrates by enhanced magnetic filtering arc ion plating. The morphologies,microstructures, residual stresses, compositions, chemical states, mechanical and electrical properties of the as-deposited films were characterized by field-emission scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectrometry, Nanoindenter and Hall effect measurements. The results showed that ZrN_x films exhibited rocksalt single-phase structure within a VN concentration ranging from 26 to 5%. The preferred orientation, thickness, grain size and residual stress of the ZrN_x films kept constant at different V_N concentrations. Both the nanohardness and elastic modulus first increased and then decreased with the decrease in V_N concentration, reaching the peaks around 16%. And the electric conductivity of the ZrN_x films showed a similar tendency with nanohardness. The underlying atomic-scale mechanisms of V_N concentration-dependent hardness and electric conductivity enhancements were discussed and attributed to the different electronic band structures, rather than conventional meso-scale factors, such as preferred orientation, grain size and residual stress.
Effect of Precipitation on Hot Deformation Behavior and Processing Maps of Nickel-Base UNS N10276 Alloy

The hot deformation characteristics and processing maps of aged nickel-base UNS N10276 alloy were investigated and compared with those of solution-treated UNS N10276 alloy at temperatures of 950-1250 ℃ and strain rates between 001 and 10 s~(-1). The dominant precipitated phase in the aged alloy was identified as topologically close-packed (TCP) µ phase enriched in Mo and Ni. The precipitates present in the UNS N10276 alloy could significantly facilitate flow softening after peak stress at temperatures lower than 1150 ℃ and strain rates higher than 0.01 s~(-1). Processing maps at true strains of 0.1-0.9 were developed using the dynamic materials model and experimental flow stress data. Although aging treatment slightly shrank the suitable hot working window of this alloy, the aged alloy showed higher peak efficiencies of power dissipation and smaller unstable regions in comparison with solution-treated alloy. Furthermore, aging treatment eliminated the instability region of processing maps at true strains of 0.2-0.5. The precipitated phase promoted dynamic recrystallization (DRX) by the particle-stimulated nucleation (PSN) mechanism, which resulted in the larger fraction of DRX as well as finer and more uniform grain structure in the aged alloy specimens compared to the solution-treated alloy.
2017 ACOG《遗传性乳腺癌卵巢癌综合征》指南解读(卵巢癌篇)

遗传性乳腺癌卵巢癌综合征是一种遗传性癌症易感综合征,其特征在于家族中多个成员罹患乳腺癌和(或)卵巢癌。2017年9月,美国妇产科医师学会(ACOG)更新第182号意见,即《遗传性乳腺癌卵巢癌综合征》,该指南详述了与遗传性乳腺癌卵巢癌综合征相关的基因突变(主要为BRCA1和 BRCA2)以及降低风险的措施,并作出了推荐意见。本文仅就该指南中关于卵巢癌部分进行简要解读。
湖北某兽药公司生产废水处理工程实例

湖北某兽药公司新建废水处理站设计水量为400m~3/d,出水水质需满足当地市政污水管网接管标准。根据生产废水的水质不同,采用分质预处理,提高废水可生化性,减少运行成本,保证出水水质达标。组合工艺流程为预处理+生化处理+深度处理,工程调试运行后,废水处理站运行良好,出水水质均达到当地市政污水管网接管标准。
《城镇污水处理考核暂行办法》对行业发展的影响分析

2017年7月,住房和城乡建设部修订颁布了《城镇污水处理工作考核暂行办法》,以进一步加强城镇污水处理设施建设和运行监管,全面提升城镇污水处理效能。从技术角度研究了该办法的具体要求,分析了该办法对行业发展趋势的指导意义和引导作用,提出未来一段时期,我国城镇排水与污水处理行业发展应更加注重管网提质、污泥无害化处置及污水处理厂增效等。