mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Parametric analyses for synthetic jet control on separation and stall over rotor airfoil

Numerical simulations are performed to investigate the effects of synthetic jet control on separation and stall over rotor airfoils. The preconditioned and unsteady Reynolds-averaged Navier–Stokes equations coupled with a k - ω shear stream transport turbulence model are employed to accomplish the flowfield simulation of rotor airfoils under jet control. Additionally, a velocity boundary condition modeled by a sinusoidal function is developed to fulfill the perturbation effect of periodic jets. The validity of the present CFD procedure is evaluated by the simulated results of an isolated synthetic jet and the jet control case for airfoil NACA0015. Then, parametric analyses are conducted specifically for an OA213 rotor airfoil to investigate the effects of jet parameters (forcing frequency, jet location and momentum coefficient, jet direction, and distribution of jet arrays) on the control effect of the aerodynamic characteristics of a rotor airfoil. Preliminary results indicate that the efficiency of jet control can be improved with specific frequencies (the best lift-drag ratio at F~+ =2.0) and jet angles (40° or 75°) when the jets are located near the separation point of the rotor airfoil. Furthermore, as a result of a suitable combination of jet arrays, the lift coefficient of the airfoil can be improved by nearly 100%, and the corresponding drag coefficient decreased by 26.5% in comparison with the single point control case.
An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli

An experiment is carried out on the surface oscillation of buoyant-thermocapillary convection in an open cylindrical annulus. When the radial temperature difference ΔT reaches a critical value ΔTc, a regular oscillation appears and soon disappears on the open surface, which varies when the liquid layer’s thickness h and temperature difference ΔT are varied. With growth of ΔT, dominant frequency of the visible oscillation will grow too but is found within certain frequencies. Driving forces, buoyance and thermocapillarity, are responsible for this phenomanon and the “balance” point is considered to exist when h is between 4.5–5.0mm. Surface oscillation region is also found restricted within a narrow gap when Bo is smaller than 3.7.
Ability of lower teardrop edge to restore anatomical hip center height in total hip arthroplasty

Background The acetabular teardrop is often used to guide acetabular component placement in total hip arthroplasty (THA). Placing the lower acetabular component aspect at the same level as the lower teardrop edge was assumed to restore the hip center of rotation. Here we radiographically analyzed the relationship between cup center and normal contralateral acetabulum center height on unilateral THA using this placement method. Methods A total of 106 unilateral THA cases with normal contralateral acetabula were reviewed and the vertical and horizontal distances in relation to the lower acetabular teardrop edge from both hip joint centers, cup inclination, and anteversion were measured radiographically. The paired t-test was used to compare left and right hip center heights. Scatter plots and Pearson's correlation coefficients were used to evaluate differences in hip center heights, cup anteversion, inclination angles, and medialized cup center distance compared to the contralateral hip joint. Results Cup center height was significantly greater (P <0.01) than contralateral hip joint center height (93.4% in the 0-5 mm range, 6.6% >5 mm). There was a weak correlation between hip center height difference and inclination (r=0.376, P <0.01) and between difference and anteversion (f0.310, P <0.01) but no correlation between difference and outer cup diameter (r=0.184, P=0.058) or difference and medialized cup center distance (r=-0.098, P=0.318). Conclusions Although this method did not exactly replicate anatomic hip center height, the clinical significance of cup center height and anatomic hip center height differences is negligible. This acetabular component placement method has high simplicity, reliability, and stability.
Enzalutamide in chemo-naive castration-resistant prostate cancer: effective for most but not for all

Continued research in the treatment of castration-resistant prostate cancer (CRPC) has allowed for a clearer understanding of this disease entity and further treatment advances. In a study recently published by Beer et al. in the New England Journal of Medicine, another advance to treatment was demonstrated for the androgen receptor (AR) signaling inhibitor, enzalutamide, in patients with chemotherapy-naive metastatic CRPC. Although a large majority of patients responded favorably to enzalutamide in the prechemotherapy setting, a small but significant proportion of patients demonstrated no meaningful benefit to this agent. This highlights an important concept in the understanding of this disease: inherent and acquired resistance to AR-targeting therapies.
11β-hydroxysteroid dehydrogenase types 1 and 2 in postnatal development of rat testis: gene expression, localization and regulation by luteinizing hormone and androgens

llp-hydroxysteroid dehydrogenase type 1 (11β-HSDl) and type 2 (11β-HSD2) are expressed in rat testis, where they regulate the local concentrations of glucocorticoids. Here, we investigated the expression and localization of 11β-HSD in rat testis during postnatal development, and the regulation of these genes by luteinizing hormone (LH) and androgens. mRNA and protein levels were analyzed by quantitative real-time-polymerase chain reaction and western blotting, respectively, in testes collected from rats at postnatal day (PND) 7,14,21,35,and 90,and from rats treated with LH, 7α-methyl-19-nortestosterone (MENT) and testosterone at PND 21 and PND 90. Immunohistochemical staining was used to identify the localization of the 11β-HSD in rat testis at PND 7,14,and 90. We found that 11β-HSDl expression was restricted to the interstitial areas, and that its levels increased during rat testis development. In contrast, whereas 11β-HSD2 was expressed in both the interstitial areas and seminiferous tubules at PND 7,it was present only in the interstitial areas at PND 90,and its levels declined during testicular development. Moreover, 11β-HSDl mRNA was induced by LH in both the PND 21 and 90 testes and by MENT at PND 21,whereas 11β-HSD2 mRNA was induced by testosterone and MENT in the PND 21 testis and by LH in the PND 90 testis. In conclusion, our study indicates that the 11β-HSDl and 11β-HSD2 genes have distinct patterns of spatiotemporal expression and hormonal regulation during postnatal development of the rat testis.
Derivation of baroclinic Ertel–Rossby invariant-based thermally-coupled vorticity equation in moist flow

For the potential vorticity (PV) invariant, there is a PV-based complete-form vorticity equation, which we use heuristically in the present paper to answer the following question: for the Ertel–Rossby invariant (ERI), is there a corresponding vorticity tendency equation? Such an ERI-based thermally-coupled vorticity equation is derived and discussed in detail in this study. From the obtained new vorticity equation, the vertical vorticity change is constrained by the vertical velocity term, the term associated with the slope of the generalized momentum surface, the term related to the horizontal vorticity change, and the baroclinic or solenoid term. It explicitly includes both the dynamical and thermodynamic factors’ influence on the vorticity change. For the ERI itself, besides the traditional PV term, the ERI also includes the moisture factor, which is excluded in dry ERI, and the term related to the gradients of pressure, kinetic energy, and potential energy that reflects the fast-manifold property. Therefore, it is more complete to describe the fast motions off the slow manifold for severe weather than the PV term. These advantages are naturally handed on and inherited by the ERI-based thermally-coupled vorticity equation. Then the ERI-based thermally-coupled vorticity equation is further transformed and compared with the traditional vorticity equation. The main difference between the two equations is the term which describes the contribution of the solenoid term to the vertical vorticity development. In a barotropic flow, the solenoid term disappears, then the ERI-based thermally-coupled vorticity equation can regress to the traditional vorticity equation.
Fabrication and temperature-dependent photoluminescence spectra of Zn–Cu–In–S quaternary nanocrystals

A series of Zn–Cu–In–S nanocrystals (ZCIS NCs) are prepared and the optical properties of the ZCIS NCs are tuned by adjusting the reaction time. It is interesting to observe that the temperature-dependent photoluminescence (PL) spectra of the ZCIS NCs show a redshift with decreasing intensity at low temperature (50–280 K) and a blueshift at high temperature(318–403 K). The blueshift can be explained by the thermally active phonon-assisted tunneling from the excited states of the low-energy emission band to the excited states of the high-energy emission band.
Dynamics of magnetization in ferromagnet with spin-transfer torque

We review our recent works on dynamics of magnetization in ferromagnet with spin-transfer torque. Driven by constant spin-polarized current, the spin-transfer torque counteracts both the precession driven by the effective field and the Gilbert damping term different from the common understanding. When the spin current exceeds the critical value, the conjunctive action of Gilbert damping and spin-transfer torque leads naturally the novel screw-pitch effect characterized by the temporal oscillation of domain wall velocity and width. Driven by space- and time-dependent spin-polarized current and magnetic field, we expatiate the formation of domain wall velocity in ferromagnetic nanowire. We discuss the properties of dynamic magnetic soliton in uniaxial anisotropic ferromagnetic nanowire driven by spin-transfer torque, and analyze the modulation instability and dark soliton on the spin wave background, which shows the characteristic breather behavior of the soliton as it propagates along the ferromagnetic nanowire. With stronger breather character, we get the novel magnetic rogue wave and clarify its formation mechanism. The generation of magnetic rogue wave mainly arises from the accumulation of energy and magnons toward to its central part. We also observe that the spin-polarized current can control the exchange rate of magnons between the envelope soliton and the background, and the critical current condition is obtained analytically. At last, we have theoretically investigated the current-excited and frequency-adjusted ferromagnetic resonance in magnetic trilayers. A particular case of the perpendicular analyzer reveals that the ferromagnetic resonance curves, including the resonant location and the resonant linewidth, can be adjusted by changing the pinned magnetization direction and the direct current. Under the control of the current and external magnetic field, several magnetic states, such as quasi-parallel and quasi-antiparallel stable states, out-of-plane precession, and bistable states can be realized. The precession frequency can be expressed as a function of the current and external magnetic field.
Impact of substrate injected hot electrons on hot carrier degradation in a 180-nm NMOSFET

Although hot carriers induced degradation of NMOSFETs has been studied for decades, the role of hot electron in this process is still debated. In this paper, the additional substrate hot electrons have been intentionally injected into the oxide layer to analyze the role of hot electron in hot carrier degradation. The enhanced degradation and the decreased time exponent appear with the injected hot electrons increasing, the degradation increases from 21.80% to 62.00% and the time exponent decreases from 0.59 to 0.27 with V_b decreasing from 0 V to -4 V, at the same time, the recovery also becomes remarkable and which strongly depends on the post stress gate bias V_g. Based on the experimental results, more unrecovered interface traps are created by the additional injected hot electron from the breaking Si–H bond, but the oxide trapped negative charges do not increase after a rapid recovery.
High-Q cavity based on gradated one-dimensional photonic crystal

A high quality-factor (Q) cavity based on a one-dimensional (1D) photonic crystal with gradated elliptical holes was designed using FDTD simulation. Different gradient profiles of the mirror holes were found to correspond to different Qvalues of the cavities. A simple strategy is proposed to construct high-Q cavities by using an S-shaped gradient profile for the elliptical holes’ minor axes, such as a cosine function or Gaussian function. Using such a strategy, a Q value exceeding two million is obtained with only ten mirror holes in a cavity.
Cooperative Spectrum Allocation with QoS Support in Cognitive Cooperative Vehicular Ad Hoc Networks

To solve the contradiction between the increasing demand of diverse vehicular wireless applications and the shortage of spectrum resource, a novel cognitive cooperative vehicular ad-hoc network (CC-VANET) framework is proposed in this paper. Firstly, we develop an adaptive cognitive spectrum sensing (ACSS) mechanism which can help to trigger and adjust the spectrum sensing window according to network traffic load status and communication quality. And then, Generalized Nash Bargaining Solution (GNBS), which can achieve a good tradeoff between efficiency and weighted fairness, is proposed to formulate the asymmetric inter-cell resource allocation. Finally, GNBS-Safety (GNBS-S) scheme is developed to enhance the Quality of Service (QoS) of safety applications, especially in the heavy load status, where the bandwidth demanded and supplied cannot be matched well. Furthermore, the primary user activity (PUA) which can cause rate loss to secondary users, is also considered to alleviate its influence to fairness. Simulation results indicate that the proposed CC-VANET scheme can greatly improve the spectrum efficiency and reduce the transmission delay and packet loss rate on the heavy contention status. And GNBS spectrum allocation scheme outperforms both the Max-min and Max-rate schemes, and can enhance the communication reliability of safety service considerably in CC-VANET.
Identification and Profiling of Known and Novel Fiber MicroRNAs during the Secondary Wall Thickening Stage in Cotton (Gossypium hirsutum) via High-Throughput Sequencing

Upland cotton (Gossypium hirsutum L.) is an allotetraploid species originated from interspecific hybridization between AA-genome diploid (G. arboretum) and DD-genome diploid (G. raimondii) (Wendel et al., 1992). Cotton fibers are single-celled trichomes that emerge from the ovule epidermal cells.Indexed by the number of days post-anthesis (dpa), fiber morphogenesis includes four distinct but overlapping steps:initiation (0-3 dpa), elongation (3-20 dpa), secondary cell wall thickening (15-45 dpa) and maturation (40-60 dpa)(Yang et al., 2008, Du et al., 2013). The efficiency and duration of each morphogenesis stage is important to the quality attributes of the mature fiber. Cell elongation is critical for fiber length, whereas secondary cell wall thickening is important for fiber fineness and strength (Meinert and Delmer,1977).
新扶正除疫颗粒对小鼠耳廓肿胀及大鼠肉芽肿的实验研究

目的通过中药新扶正除疫颗粒对小鼠耳廓肿胀及大鼠棉球肉芽肿实验,探究新扶正除疫颗粒抗炎作用。方法浓度0.6g/kg的新扶正除疫颗粒溶液连续3 d灌胃后,以50μl的二甲苯涂于小鼠右侧耳双面致炎,右耳作为对照;手术在大鼠右下腹腹股沟处埋入10mg的棉球后,以0.6g/kg浓度新扶正除疫颗粒溶液灌胃,7 d后取出棉球烘干称重。结果小鼠耳廓肿胀抑制率达83.57%,药物组与空白组有显著差异(P<0.001);大鼠棉球肉芽肿抑制率为31.02%,有显著差异(P<0.001)。结论具有扶正除疫,清解热毒的中药新扶正除疫颗粒具有显著的抗炎作用,对感染性肺部疾病有一定防治作用。
VEGF反义核苷酸抑制胃癌生长及血管生成的在体实验研究

目的:探讨脂质体介导 VEGF 反义核苷酸对裸鼠胃癌肿瘤生长以及肿瘤血管生成的抑制作用,为临床应用反义核苷酸技术治疗胃癌提供理论依据。方法:用人胃癌细胞 SGC-7901建立裸鼠胃癌模型后,将胃癌裸鼠分为治疗组与对照组,治疗组腹腔内注射脂质体介导 VEGF 反义核苷酸,对照组注射生理盐水,连续注射4周。10周后处死裸鼠,比较两组肿瘤生长、转移情况以及肿瘤毛细血管密度等。结果:与对照组比较,治疗组肿瘤的体积、质量明显减小、肿瘤周围的毛细血管密度、腹腔转移率明显降低(均 P <0.05)。结论:脂质体介导 VEGF 反义核苷酸对胃癌的生长转移以及血管生成等均有明显抑制作用。
Kinetics Analysis on Mixing Calcination Process of Fly Ash and Ammonium Sulfate

The further development of the extraction of alumina that is produced in the calcination process of ammonium sulfate mixed with fly ash was limited because of the lack of systematic theoretical study. In order to aggrandize the research of the calcination process, the kinetics and reaction mechanism of the calcinations were studied. The result suggests that there are two stages in the calcination process, and the alumina extraction rate increases swiftly in the initial stage, but slows down increasing in the later stage. The apparent activation energy of the initial and later stages equals to 13.31 and 35.65 kJ·mol~(-1), respectively. In the initial stage, ammonium sulfate reacts directly with mullite in the fly ash to form ammonium aluminum sulfate, while in the later stage, aluminum sulfate is formed by the reaction between ammonium aluminum sulfate and ammonium sulfate.
国审高产、优质玉米新品种龙作1号的选育

龙作1号是由黑龙江省农业科学院作物育种研究所以自交系中 M-8为母本,自交系 L 237为父本杂交选育而成的优良玉米单交种。国家玉米区域试验表明,龙作1号平均单产749. 3 kg /667 m~2,比对照先玉335增产3. 5%; 生产试验中平均单产724. 2 kg /667 m~2,较对照先玉335增产3. 8%。该品种抗倒性强,高产、稳产、籽粒品质好、出籽率高、抗茎腐病、叶斑病中抗大斑病、丝黑穗病,综合抗性强,适宜种植范围广。2012年12月通过国家农作物品种审定委员会审定(审定编号: 国审玉2012001)。
“芽变育种”在马铃薯种选育上的应用

生物技术的兴起和发展,促使马铃薯育种技术发生了极大的变化,然而芽变育种作为一种时间较早的传统育种方法,却从未引起过我国马铃薯育种家们的高度重视。本文从理论和实际操作两方面和同仁们进行探讨,旨在为马铃薯种选育及其产业发展提供参考。
优质杂交粳稻新品种云光109的选育与推广

云光109系用N 95076 S作母本,云粳恢7号作父本,组配而成的优质杂交粳稻新组合,该组合产量高、分蘖力强、株叶型好、穗大粒多、适应性强。对该组合的选育过程、特征特性及栽培技术等进行总结。
苜蓿的秋眠性及贵州现有品种的推广应用

苜蓿(Medicago sativa)的秋眠性实质上是在秋季日照变短和温度降低时植株所表现出的一种适应性生长特性,这种生长特性与植物的抗寒性和生产性能相关。在20世纪70年代末期,随着秋眠性测定方法的发明和分类标准的制订,苜蓿秋眠性在育种和生产中得到广泛应用。本文概述了秋眠性的概念、分类标准、种子处理及其在国内的研究及应用。
小麦萌发期耐旱性材料的筛选与评价

为了研究小麦的耐旱性,使用 PEG-6000高渗溶液模拟干旱胁迫,鉴定小麦的相关性状并采用综合耐旱系数法和灰色关联度分析法分析了参试材料的耐旱性。结果表明,在胁迫条件下,发芽率、苗高、根长、苗干重、根干重等性状测量值总体上都有所下降,发芽率、根干重、根长耐旱能力较强,苗高、苗干重耐旱力较差。耐旱性较好的材料分别为节燕970012、贵麦13、05中38、贵阳紫麦、绵麦39、98212-3、贵麦11、9201、07 M 6065和082001-52。
顺序注射-氢化物发生-原子荧光光谱法测定马氏珠母贝中镉的含量

镉是对人体有害的重金属元素之一,是慢性蓄积性毒物,对肾脏、骨骼、肺、肝、神经系统以及血液系统均可产生毒性,并且具有致癌、致畸和致突变的作用。随着现代工业化的迅猛发展,海洋环境特别是贝类的生长环境受到重金属的污染日益严重。而贝类是具有很强富集能力的滤食性底栖生物,使到其体内重金属镉含量极易超标。马氏珠母贝又名合浦珠母贝,是我国南方海水珍珠养殖的主要品种,主要分布在广东、广西和海南三省。其贝肉是一种高蛋白、低脂肪、营养价值丰富的海产品,除了一部分直接食用外,大部分作为饲料原料。可将其贝肉制成罐头或其他风味食品,还可将贝肉酶解,制成蛋白营养液、调味料或提取其活性成分等。若食用这些含镉贝肉或其产品时,镉元素将通过食物链传递到人,对人类健康形成潜在威胁。所以监测马氏珠母贝中的镉含量,对其贝肉的深加工利用显得至关重要。
Biogenic Sedimentary Structures of the Yellow River Delta in China and Their Composition and Distribution Characters

The biogenic sedimentary structures (i.e., the morphology and trace makers of burrows, tracks, trails and traces made by extant organisms) and their composition and distribution characters in different micro environments and sub environments of the Yellow River delta in China are described. Three ichnocoenosis can be recognized: (1) Steinichnus-like ichnocoenosis, includes F, Y-shaped traces, birds' footprints on bedding plane, and Y, U-shaped burrows in intrastratal bedding, produced by Coleoptera (Heteroceridae), Orthoptera (Gryllotalpidae) and birds. It is majorly found at the delta plain point bar deposits, denoting the fresh water-related terrestrial environments. (2) Steinichnus-Psilonichnus-like ichnocoenosis, consitsis of Steinichnus-like traces on the bedding plane and Psilonichnus-like burrow which a vertical, irregularly J-, Y-, or U-shaped burrows, some of them with bulbous basal cells burrows in the intrastratal bedding, created by Coleoptera (Heteroceridae), Orthoptera (Gryllotalpidae) and crabs. It is observed in the delta plain abandoned distributary channels, and the delta front tidal creek and subaquous distributary channels, indicating the brackish water environment. (3) Palaeophycus-like ichnocoenosis, includes the round entrance burrows or with craters-shaped loop-protrusionsand and the parallel forked trails on the bedding plane, and the U, J or vertical shaped feeding burrows are in the intrastratal bedding, majorly produced by the clam (bivalve molluscs), gastropods and Nereis. It is present in the subaqueous interdistributary bay, reflecting the intertidal related environment.
Geochemistry and Zircon U-Pb Dating of Changshagou Adakite from the South Altyn UHPM Terrane: Evidence of the Partial Melting of the Lower Crust

Changshagou adakite, an outcrop in the middle segment of the South Altyn Tagh ultra-high pressure metamorphism (UHPM) terrane, contains medium-K cal-alkaline and weakly peraluminous compositions (Si02= 66.79% to 68.65%, Al_2O_3= 17.48% to 18.31%, K_2O + Na_2O = 6.32% to 6.88%, K_2O/Na_2O = 0.25 to 0.33, A/CNK = 1.01 to 1.06). This outcrop is also enriched with large ion lithophile elements but with depleted high-field strength elements (HFSE) showing clearly negative Nb, Ta, and Ti anomalies. REE distribution patterns show a positive anomaly of Eu (δEu = 1.15 to 1.31) and weakly enriched with LREE compared with HREE (LREE/HREE = 1.02 to 4.20). Experimental results and several characteristics, including relatively low Nb/Ta ratios (6.03 to 8.45) and high Sr, Sr/Y, (La/Yb)_N and low Y and Yb, which indicate the presence of residual garnet and the absence of plagioclase in the source region, show that adakite may form at a pressure ranging from 1.2 GPa to 1.5 GPa and at a temperature of approximately 900°C. Low Cr, Ni, and Mg# values, trace element patterns, and SiO_2-Mg# and SiO_2-MgO diagrams indicate that rocks are formed by the partial melting of a thickened lower continental crust. LA-ICP-MS in situ U-Pb dating yields two group ages: 503.1 ± 1.7 Ma (core) and 453.1 ± 3.0 Ma (rim). The Th/U ratios of the core and the rim are 0.11 to 0.40 and 0.03 to 0.07, respectively. Considering the zircon CL image characteristics, Th/U ratios, and previous studies on regional UHPM rocks, adakite formed at 503.1 ± 1.7 Ma and underwent a tectothermal event as a result of the break-off of the Altyn deep subducted continental crust at 453.1 ± 3.0 Ma.
The Phototropism of Jurassic Petrified Wood in North China Plate

Trees on the side directly exposed to sunlight generally grow faster than on the opposite side, a phenomenon termed plant phototropism. There are in situ vertical trunks of silicifled wood in the Xiadelongwan area of Yanqing County, north Beijing, where the first National Geologic Park of Petrified Wood of China has been built since 2002. A few trunks have well-preserved growth rings. One petrified stump from the formation shows a positive phototropism direction of SW230°. As compared with the modern normal growth stumps in Beijing plain area, which have a positive phototropism direction of SW210 ° ± 5°, the evidence of wood phototropism supports the conclusion of previous palaeomagnetic studies that the North China Plate has rotated clockwise since the Late Jurassic. The known petrified wood stumps in the Yanshan-Liaoning area are mainly found from the strata of 165-136 Ma, which corresponds to the main stage of the Yanshanian Movement.