mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
High-precision pose measurement method in wind tunnels based on laser-aided vision technology

The measurement of position and attitude parameters for the isolated target from a highspeed aircraft is a great challenge in the field of wind tunnel simulation technology. In this paper, firstly, an image acquisition method for small high-speed targets with multi-dimensional movement in wind tunnel environment is proposed based on laser-aided vision technology. Combining with the trajectory simulation of the isolated model, the reasonably distributed laser stripes and selfluminous markers are utilized to capture clear images of the object. Then, after image processing, feature extraction, stereo correspondence and reconstruction, three-dimensional information of laser stripes and self-luminous markers are calculated. Besides, a pose solution method based on projected laser stripes and self-luminous markers is proposed. Finally, simulation experiments on measuring the position and attitude of high-speed rolling targets are conducted, as well as accuracy verification experiments. Experimental results indicate that the proposed method is feasible and efficient for measuring the pose parameters of rolling targets in wind tunnels.
Experimental investigation on a high subsonic compressor cascade flow

With the aim of deepening the understanding of high-speed compressor cascade flow, this paper reports an experimental study on NACA-65 K48 compressor cascade with high subsonic inlet flow. With the increase of passage pressurizing ability, endwall boundary layer behavior is deteriorated, and the transition zone is extended from suction surface to the endwall as the adverse pressure gradient increases. Cross flow from endwall to midspan, mixing of corner boundary layer and the main stream, and reversal flow on the suction surface are caused by corner separation vortex structures. Passage vortex is the main corner separation vortex. During its movement downstream, the size grows bigger while the rotating direction changes, forming a limiting circle. With higher incidence, corner separation is further deteriorated, leading to higher flow loss. Meanwhile, corner separation structure, flow mixing characteristics and flow loss distribution vary a lot with the change of incidence. Compared with low aspect-ratio model, corner separation of high aspect-ratio model moves away from the endwall and is more sufficiently developed downstream the cascade. Results obtained present details of high-speed compressor cascade flow, which is rare in the relating research fields and is beneficial to mechanism analysis, aerodynamic optimization and flow control design.
胃弥漫大B细胞淋巴瘤同时并发胃癌1例报道

胃癌是国内外常见的恶性肿瘤,原发胃淋巴瘤是原发胃、起源于胃黏膜下层淋巴组织的恶性肿瘤,居胃部恶性肿瘤第2位,但胃弥漫大B细胞淋巴瘤同时并发胃癌未见文献报道。解放军第306医院收集1例,现报道如下。
碘对比剂对甲状腺功能影响的研究现状

近年来,随着冠心病与肿瘤等疾病的发病人群不断增加,增强计算机断层摄影术(CT)与微创介入手术的应用日益普遍,更多的患者需要体内注射含碘对比剂。一次静脉推注含碘对比剂后,进入血液中的碘原子数量是人体每日基础需要量的数万倍,维持高水平达1周以上。超生理剂量单次碘负荷对甲状腺功能的影响迄今未见一致报道。国内研究显示,甲状腺功能正常的成人接受体内注射含碘对比剂后3~6个月甲状腺功能未见有统计学意义的变化,而国外的研究则显示该人群罹患甲状腺功能亢进、甲状腺功能减退及亚临床甲状腺功能亢进的风险升高,肾功能不全者为高危人群。对于孕妇及新生儿,国外多项研究均认为体内注射含碘对比剂对孕妇及新生儿的甲状腺功能无明显影响。
伪嗜铬细胞瘤诊断与治疗

对于严重的、有症状的发作性高血压容易被怀疑嗜铬细胞瘤(PHEO),但确诊PHEO者不到2%。伪PHEO是一种特殊类型的发作性高血压,区别于PHEO及一系列酷似PHEO的临床状况,认知治疗、心理治疗、行为干预,联合β、α1受体阻滞剂,必要时联合抗抑郁、抗焦虑药、结合精心护理有效。无或可疑亚临床心理障碍的发作性高血压应引起人们的关注。行为心血管病学在伪PHEO诊治中有重要作用。现将伪PHEO临床特点、诊断及鉴别诊断、发病机制、治疗策略予以综述。
复合手术行弓上血流重建治疗头臂型大动脉炎的临床分析

多发性大动脉炎(Takayasu arteritis,TA)是一种自身免疫性疾病,多见于亚洲年轻女性患者。主要病理表现为动脉全层呈弥漫性不规则增厚和纤维化,受累血管多发生狭窄或闭塞,少数患者也可呈扩张性或动脉瘤样改变。病理类型以头臂型大动脉炎(brachiocephalic takayasu arteritis, BCTA)居多,临床表现常因病变部位不同而各异。联合应用血管腔内及血管旁路移植的复合手术技术治疗BCTA尚未见文献报道。我科2009年3月至2014年6月对13例BCTA患者应用复合手术技术重建颈部动脉血流,取得了满意疗效。
Shone综合征致急性主动脉夹层、心肌梗死和脑出血一例

虽然目前Shone综合征的治疗多数在强调二尖瓣狭窄的处理技巧及时机,然而本例患者的临床转归提醒临床工作者,此类畸形尚可导致各种严重的内科危重症,应该早期诊断和积极处理,以减少各种并发症的出现。
Karst Ecosystem: An Ecosystem on Carbonate Rocks

Karst ecosystem is an ecosystem constrained by karst environment. A series of unique characteristics of karst ecosystem are originated from carbonate rock. In China, the area with karst landform covers a total area of 3.44 million km~2, accounting for one third of the whole land area of the country. The bare karst terrain covers an area of 907 000 km~2, which mainly distributed in southern of China, with Guizhou Province as the center, and about 40% of the poverty-stricken people live there. During the period of the 11th-Five-Year Plan (2006–2010) and the 12th Five-Year Plan (2011–2015), the national program of “Integrated Control of Rocky Desertification in Karst” has been implemented in this region.
"三明治式"球囊扩张术在B超引导下经皮肾镜手术中的应用

经皮肾镜是复杂性上尿路结石首选治疗方法,其经皮肾通道的建立常在X线定位下完成,但长期放射性照射会诱发癌变,严重损伤临床医师的身体健康。因此,超声引导下经皮肾镜手术近年来逐渐引起临床重视。B超引导下经皮肾穿刺定位准确,但进一步建立经皮肾通道较困难,主要原因是目前临床上常用的Amplatz扩张器在B超监视下显像定位难度大。本研究在传统超声引导下经皮肾镜手术中采用“三明治式”球囊扩张术,取得初步成效。
Design and test of a capacitance detection circuit based on a transimpedance amplifier

This paper presents a transimpedance amplifier (TIA) capacitance detection circuit aimed at detecting micro-capacitance, which is caused by ultrasonic stimulation applied to the capacitive micro-machined ultrasonic transducer (CMUT). In the capacitance interface, a TIA is adopted to amplify the received signal with a center frequency of 400 kHz, and finally detect ultrasound pressure. The circuit has a strong anti-stray property and this paper also studies the calculation of compensation capacity in detail. To ensure high resolution, noise analysis is conducted. After optimization, the detected minimum ultrasound pressure is 2.1 Pa, which is two orders of magnitude higher than the former. The test results showed that the circuit was sensitive to changes in ultrasound pressure and the distance between the CMUT and stumbling block, which also successfully demonstrates the functionality of the developed TIA of the analog-front-end receiver.
Mechanism of the self-changing parameters and characteristics in AlGaN/GaN high-electron mobility transistors after a step voltage stress

The phenomenon of self-changing on the device parameters and characteristics after a step voltage stress was applied to the gate is studied in AlGaN/GaN high electron mobility transistors. The device was measured every 5 min after the stress was removed. The large-signal parasitic source (drain) resistance, transfer characteristics, threshold voltage, drain-source current, gate-source (drain) reverse current-voltage characteristics changed spontaneously after the removal of the stress. The time constant of the self-changing was about 25-27 min. The gate-source (drain) capacitance-voltage characteristics were constant during this process. Electrons were trapped by the surface states and traps in the AlGaN barrier layer when the device was under stress. The traps in the AlGaN barrier layer then released electrons in less than 10 s. The surface states released electrons continuously during the entire measurement stage, leading to the self-changing of mearsurement result.
Dopingless impact ionization MOS (DL-IMOS)-a remedy for complex process flow

We propose a unique approach for realizing dopingless impact ionization MOS (DL-IMOS) based on the charge plasma concept as a remedy for complex process flow. It uses work-function engineering of electrodes to form charge plasma as surrogate doping. This charge plasma induces a uniform p-region in the source side and an n-region in the drain side on intrinsic silicon film with a thickness less than the intrinsic Debye length. DL-IMOS offers a simple fabrication process flow as it avoids the need of ion implantation, photo masking and complicated thermal budget via annealing devices. The lower thermal budget is required for DL-IMOS fabrication enables its fabrication on single crystal silicon-on-glass substrate realized by wafer scale epitaxial transfer. It is highly immune to process variations, doping control issues and random dopant fluctuations, while retaining the inherent advantages of conventional IMOS. To epitomize the fabrication process flow for the proposed device a virtual fabrication flow is also proposed here. Extensive device simulation of the major device performance metrics such as subthreshold slope, threshold voltage, drain induced current enhancement, and breakdown voltage have been done for a wide range of electrodes work-function. To evaluate the potential applications of the proposed device at circuit level, its mixed mode simulations are also carried out.
Numerical simulation of the effect of the free carrier motilities on light-soaked a-Si:H p-i-n solar cell

Using a previous model, which was developed to describe the light-induced creation of the defect density in the a-Si:H gap states, we present in this work a computer simulation of the a-Si:H p-i-n solar cell behavior under continuous illumination. We have considered the simple case of a monochromatic light beam nonuniformly absorbed. As a consequence of this light-absorption profile, the increase of the dangling bond density is assumed to be inhomogeneous over the intrinsic layer (i-layer). We investigate the internal variable profiles during illumination to understand in more detail the changes resulting from the light-induced degradation effect. Changes in the cell external parameters including the open circuit voltage, V_(oc), the short circuit current density, J_(sc), the fill factor, FF, and the maximum power density, P_(max), are also presented. This shows, in addition, the free carrier mobility influence. The obtained results show that V_(oc) seems to be the less affected parameter by the light-induced increase of the dangling bond density. Moreover, its degradation is very weak-sensitive to the free carrier mobility. Finally, the free hole mobility effect is found to be more important than that of electrons in the improvement of the solar cell performance.
Growth-temperature-dependent optical and acetone detection properties of ZnO thin films

Zinc oxide (ZnO) thin films were prepared onto glass substrates at moderately low growth temperature by two-stage spray pyrolysis technique. The effects of growth temperature on structural, optical and acetone detection properties were investigated with X-ray diffractometry, a UV-visible spectrophotometer, photoluminescence (PL) spectroscopy and a homemade gas sensor testing unit, respectively. All the films are polycrystalline with a hexagonal wurtzite phase and exhibit a preferential orientation along [002] direction. The film crystallinity is gradually enhanced with an increase in growth temperature. The optical measurements show that all the films are physically highly transparent with a transmittance greater than 82% in the visible range. The band gap of the film is observed to exhibit a slight red shift with an increasing growth temperature. The PL studies on the films show UV/violet PL band at ~395 nm. Among all the films investigated, the film deposited at 250 ℃ demonstrates a maximum sensitivity of 13% towards 20 ppm of acetone vapors at 300 ℃ operating temperature.
Magnetic polarization of a Mn-doped semiconductor nanostructure controlled by an external bias

The interplay between the electric and magnetic properties in a double quantum well heterostructure doped by magnetic ions is theoretically investigated. In this material, the magnetism is mediated by the hole gas. The total magnetic polarization of the system is controllable by an external applied bias. The device has two equilibrium states (symmetric and antisymmetric configurations). In the stable configuration (anti-ferromagnetic type), the particle spin distribution is reversed in the adjacent wells. The stability of the system is investigated by simulating the interaction of the hole gas with the light. By using an ab initio method, we estimate the switching time of the device.
Innovative methods and techniques for frontiers of life science

The advances in frontiers of life science often rely on the development of new methods or techniques. For example, the development of capillary DNA sequencing technology has significantly speeded up the Human Genome Project. Later, the introduction of next-generation sequencing technologies further promotes the researches on epigenome and tran-scriptome. This collection includes research papers that present latest innovative methods and techniques, which might provide researchers new tools to understand or manipulate the complex biological systems.
A Decode-and-Forward Scheme for LDPC Coded Three-Way Relay Fading Channels

In this paper a low-density pairwise check (LDPC) coded three-way relay system is considered, where three user nodes desire to exchange messages with the help of one relay node. Since physical-layer network coding is applied, two time slots are sufficient for one round information exchange. In this paper, we present a decode-and-forward (DF) scheme based on joint LDPC decoding for three-way relay channels, where relay decoder partially decodes the network code rather than fully decodes all the user messages. Simulation results show that the new DF scheme considerably outperforms other common schemes in three-way relay fading channels.
An Appropriate Unidirectional Wave Spectrum Model for the Strait of Hormuz

The objective of this paper is to introduce an appropriate unidirectional wave spectrum model for the Strait of Hormuz. The research is focused on assessing performance of standard wave spectrum models in the region. By evaluating such models based on valuable measurement data recently published, the calibration procedure has been conducted on such standard models to reach a better concordance between a modified standard spectral model and observed field spectra. The calibration is performed initially with respect to four distinct directions related to four available measurement stations. So, it results in four sets of coefficients for a nominated model. Next, it is continued to reach just one model insensitive to directions. Results clearly showed that the International Towing Tank Conference (ITTC) model is more appropriate than Joint North Sea Wave Project (JONSWAP) and Pierson and Moskowitz (PM) models in this area, even without any calibration. However, modifications have been successful on improving the conformity of the model.
对“系统性红斑狼疮心脏超声特点及肺高压危险因素分析”一文的商榷

《中华风湿病学杂志》2014年第8期刊登了“系统性红斑狼疮心脏超声特点及肺高压危险因素分析” 一文(以下简称为“该文”)。“该文”总结598例SLE患者的超声心动图表现,对107例疑诊SLE并发肺动脉高压和64例疑诊中重度肺动脉高压患者的临床特点进行回顾性分析,探讨SLE超声心动图特点及SLE并发肺动脉高压的危险因素。读后获益匪浅,但亦觉得“该文”中有以下问题和看法,不揣冒昧,提出与作者商榷、探讨。
Thermal Hydraulic Design and Analysis of a Water-Cooled Ceramic Breeder Blanket with Superheated Steam for CFETR

The water-cooled ceramic breeder blanket (WCCB) is one of the blanket candidates for China fusion engineering test reactor (CFETR). In order to improve power generation efficiency and tritium breeding ratio, WCCB with superheated steam is under development. The thermal-hydraulic design is the key to achieve the purpose of safe heat removal and efficient power generation under normal and partial loading operation conditions. In this paper, the coolant flow scheme was designed and one self-developed analytical program was developed, based on a theoretical heat transfer model and empirical correlations. Employing this program, the design and analysis of related thermal-hydraulic parameters were performed under different fusion power conditions. The results indicated that the superheated steam water-cooled blanket is feasible.
Dust Acoustic Compressive Waves in a Warm Dusty Plasma Having Non-Thermal Ions and Non-Isothermal Electrons

In this article an investigation is presented on the properties of dust acoustic (DA) compressive solitary wave propagation in an adiabatic dusty plasma, including the effect of non-thermal positive and negative ions and non-isothermal electrons. The reductive perturbation method has been employed to derive the lower degree modified Kadomtsev-Petviashivili (mK-P), 3D Schamel-Korteweg-de-Vries equation or modified Kadomtsev-Petviashivili (mK-P) equations for dust acoustic solitary waves in a homogeneous, unmagnetized and collisionless plasma whose constituents are non-isothermal electrons, singly charged positive and negative non-thermal ions and massive charged dust particles. The stationary analytical solutions of the lower degree mK-P and mK-P equations are numerically analyzed, where the e?ect of various dusty plasma constituents on DA solitary wave propagation is taken into account. It is observed that both the ions in dusty plasma play a key role in the formation of DA compressive solitary waves, and also the ion concentration and non-isothermal electrons control the transformation of the compressive potentials of the waves.
Space Expression of Industry Status Using GIS and SWOT Analysis—Take the Planning Area in Lu’an as an Example

On the basis of sufficient understanding about the general situation of the Lu’an planning area, Anhui Province, this paper uses strengths weakness opportunity threats (SWOT) analysis to analyze the internal and external factors of the development of the planning area itself; then it analyzes the industrial cluster situation in the planning area, and uses GIS space analysis to analyze the industry status of the planning area, integrating it with the geographic space expression to provide references for formulating the economic development program of the Lu’an planning area.
Research Progressing of Present Contamination of Cd in Soil and Restoration Method

Cadmium is one of the important contaminative heavy metals. Due to continuous increase of discharge of Cadmium in industrial and agriculture production, cadmium contamination of soil is more and more serious day by day, which seriously threatens ecological environment and human health. Treatment of cadmium becomes an urgent issue and research hot point. At present, remedy for cadmium pollution upon soil mainly are physical restoration, chemical restoration and biological restoration, also there are measurements by means of adding external source matter and selecting low-Cd-accumulation varieties so as to reduce cadmium harm upon agricultural products. This article introduces in detail the resource of cadmium in soil and the present condition of cadmium pollution in farmland and processing of domestic cadmium pollution research, processing stage of domestic and foreign research of restoration of cadmium polluted soil as well as various peculiarities of repair methods. Finally, the expectation of research is discussed.
咽痒咳嗽从风论治中西医理论依据

“咽痒咳嗽”是目前临床常见的一种咳嗽类型,突出特点为咳嗽因痒而发,咳必咽痒,先痒后咳,咳后痒减。因其发作机制、临床表现、治疗用药均有别于传统的急慢性咳嗽,目前学界尚无统一的诊断标准。在中医传统理论中,风咳符合该病的特征,风药具有的抗炎、抗变态反应作用,切中该病的发作机制——炎症导致咽(喉)部黏膜受损、感觉神经末梢暴露、局部敏感性增强、炎性介质刺激、诱发咳嗽,因而能取得良好的止痒、止咳效果。说明从风论治咽痒咳嗽不仅符合中医传统理论,也同时具有现代医学的依据。
Instrumented and Vickers Indentation for the Characterization of Stiffness, Hardness and Toughness of Zirconia Toughened Al_2O_3 and SiC Armor

Instrumented and Vickers indentation testing and microstructure analysis were used to investigate zirconia toughened alumina (ZTA) and silicon carbide (SiC). Several equations were studied to relate the Vickers indentation hardness, Young's modulus and crack behavior to the fracture toughness. The fracture in SiC is unstable and occurs primarily by cleavage leading to a relatively low toughness of 3 MPa m~(1/2), which may be inappropriate for multi-hit capability. ZTA absorbs energy by plastic deformation, pore collapse, crack deviation and crack bridging and exhibits time dependent creep. With a relatively high toughness around 6.6 MPa m~(1/2), ZTA is promising for multi-hit capability. The higher accuracy of median equations in calculating the indentation fracture toughness and the relatively high c/a ratios above 2.5 suggest median type cracking for both SiC and ZTA. The Young's modulus of both ceramics was most accurately measured at lower indentation loads of about 0.5 kgf, while more accurate hardness and fracture toughness values were obtained at intermediate and at higher indentation loads beyond 5 kgf, respectively. A strong indentation size effect (ISE) was observed in both materials. The load independent hardness of SiC is 2563 HV, putting it far above the standard armor hardness requirement of 1500 HV that is barely met by ZTA.
中药制剂清洁验证探讨

通过对中药制剂特点及清洁验证中难点的分析,探讨适合中药制剂清洁验证的方法。提出结合目视法、电导率法和总有机碳(TOC)法制定可行、有效的中药制剂清洁验证方案,为中药制剂生产企业GMP清洁验证工作提供参考。
Assessment of some chemical element contents in Traganum nudatum Del shrub using instrumental neutron activation analysis

Instrumental neutron activation analysis (INAA) has been used to determine some chemical element contents (K, Ca, Na, Fe, Zn, Co, Eu, Sb, and Sc) in Traganum nudatum Del (Chenopodiaceae family) consumed in North African rangelands by sheep livestock. Samples were collected from the area of Djelfa in an arid steppe of Algeria. Results show that pasture halophyte had sufficient levels of K, Ca, Zn, and Co to meet the requirements of ruminants. However, it seems that this halophyte shrub had substantial amounts of Na, higher than the critical level established by the National Research Council (NRC). Eu, Sb, and Sc were within the safety baseline of all the assayed elements recommended by the NRC. The high Na content (~ 10 g/kg) in this halophytic species requires elevated intake of water by livestock.
Successful Ablation of Cavo-tricuspid Isthmus Dependent Atrial Flutter in a Patient with Senning Operation

To the Editor: Intraatrial reentry tachycardia (IART) has been reported to occur in 2% to 10% of Mustard and Senning patients at 10 years' follow-up. We reported a case in which the cavo-tricuspid isthmus (CTI) in both the systemic venous atrium (SVA) and pulmonary venous atrium (PVA) was necessarily targeted in a patient following Senning operation.
Integrated Therapy for Invasive Pulmonary Aspergillosis in a Patient with Asthma and Chronic Obstructive Pulmonary Disease Overlap Syndrome

To the Editor: We here present a case of invasive pulmonary aspergillosis (IPA) with asthma and chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS). The patient recently took a high dose of systemic corticosteroids. Additionally, pneumothorax occurred, prompting right upper lobectomy, which contained the majority of the Aspergillus lesion. Full recovery occurred utilizing a combination of surgical resection and systemic antifungal therapy. This case supports a surgical approach to clear the infection when antifungal agents are inadequate.
欧洲最大的金矿床——罗马尼亚的罗西亚-蒙塔纳金矿床

罗马尼亚的罗西亚-蒙塔纳(Rosia Montana)金矿床位于罗马尼亚西部,特兰西瓦尼亚地区的阿普塞尼(Apuseni)山脉中,距阿尔巴县阿布鲁德镇(Abrud)东北7 km,是欧洲规模最大的金矿床。阿普塞尼地区的黄金开采活动自公元前10世纪就已经开始,而从1970年至今的开采主要集中在切塔泰(Cetate)和卡尼克(Carnic)。2002年,布里埃尔资源公司对罗西亚-蒙塔纳金矿床重新进行了储量评估,在23.88 km~2的矿区范围内,探明矿石量为3.5亿吨,其中Au的品位为1.3 g/t,Ag的品位为6 g/t。
秘鲁阿雷基帕省邦沟矿区铁铜矿床地质特征及成因探讨

邦沟铁铜矿床位于秘鲁阿雷基帕省北部,西科迪勒拉带与滨海-海岸岩基带之间,是一以铁为主,同时共/伴生铜、金的特大型矿床,也是近几年在南美洲的重要找矿成果之一(图1)。该矿床的勘查工作始于1994年,由力拓(Rio tinto)公司开展了初步的勘查工作;2004年,加拿大的卡帝罗(Cardero)公司又进行了补充勘查。上述工作主要针对铜矿、金矿,虽然已发现铁矿体的存在,但均未进行系统的评价。2009~2011年,在系统分析该区域成矿地质条件、成矿规律、控矿地质因素的基础上,山东省第四地质矿产勘查院通过地质测量、重磁数据处理、地质钻探等手段对该矿床进行了系统勘查工作,证实为以铁矿为主,共/伴生铜、金的特大型矿床。本文对该矿床的地质特征进行了系统的总结,划分了矿床的成矿阶段,并对其成因进行了初步探讨。