51 Result(s)
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Article
**anghao Wu
English
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Article
Membrane action of chloramphenicol measured by protozoan motility inhibition
The mechanism of the grey baby syndrome produced by chloramphenicol overdose is poorly understood. The present study assessed the membrane toxicity of this agent by means of its depressant effect on excitable...
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Unsteady aerodynamic forces and power requirements of a bumblebee in forward flight
Aerodynamic forces and power requirements in forward flight in a bumblebee (Bombus terrestris) were studied using the method of computational fluid dynamics. Actual wing kinematic data of free flight were used in...
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The influence of the wake of a flap** wing on the production of aerodynamic forces
The effect of the wake of previous strokes on the aerodynamic forces of a flap** model insect wing is studied using the method of computational fluid dynamics. The wake effect is isolated by comparing the fo...
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Control for going from hovering to small speed flight of a model insect
The longitudinal steady-state control for going from hovering to small speed flight of a model insect is studied, using the method of computational fluid dynamics to compute the aerodynamic derivatives and the...
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Open AccessEffect of overexpressing nhaA and nhaR on sodium tolerance and lactate production in Escherichia coli
Like other bacteria, Escherichia coli must carefully regulate the intracellular concentration of sodium ion (Na+). During the bacterial production of any organic acid, cations like Na+ invariably accumulate durin...
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Catalytic epoxidation of fatty acid methyl esters by modified metalloporphyrins with variable metals and electron-donating substituents
The catalytic efficiency of modified tetraphenylporphyrins with various metals (Mn, Fe, Co, Ni and Zn) and different electron-donating substituents (–OCH3, –OH, –N(CH3)2, –SO3Na) at the phenyl para-positions usin...
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Effects of kinematics on aerodynamic periodicity for a periodically plunging airfoil
In conventional Micro-Air-Vehicle design inspired by insects, the periodical motion of flap** airfoil usually leads to generation of a periodical aerodynamic force. However, recent studies indicate that time...
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Three slow skeletal muscle troponin genes in small-tailed Han sheep (Ovis aries): molecular cloning, characterization and expression analysis
To explore the basic characteristics and expressing profile of the three slow skeletal muscle troponin genes TNNC1 (Troponin C type 1), TNNI1 (troponin I type 1) and TNNT1 (troponin T type 1). Three purebred D...
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Open AccessEliminating acetate formation improves citramalate production by metabolically engineered Escherichia coli
Citramalate, a chemical precursor to the industrially important methacrylic acid (MAA), can be synthesized using Escherichia coli overexpressing citramalate synthase (cimA gene). Deletion of gltA encoding citrate...
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Effects of additives on sucrose-derived activated carbon microspheres synthesized by hydrothermal carbonization
In the hydrothermal carbonization of carbohydrates, such as sucrose as raw material in this study, activated carbon microspheres were synthesized by two steps of hydrothermal carbonization (180 °C) and further...
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Synthesis of citramalic acid from glycerol by metabolically engineered Escherichia coli
Citramalic acid (citramalate) serves as a five-carbon precursor for the chemical synthesis of methacrylic acid. We compared citramalate and acetate accumulation from glycerol using Escherichia coli strains expres...
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Automated Kinematics Measurement and Aerodynamics of a Bioinspired Flap** Rotary Wing
A physical model for a micro air vehicle with Flap** Rotary Wings (FRW) is investigated by measuring the wing kinematics in trim conditions and computing the corresponding aerodynamic force using computation...
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LncRNA GAS8-AS1 inhibits cell proliferation through ATG5-mediated autophagy in papillary thyroid cancer
The long non-coding RNA GAS8 antisense RNA 1 (lncRNA GAS8-AS1) is a tumor suppressor in papillary thyroid cancer (PTC), but the mechanisms underlying how GAS8-AS1 regulates PTC biology remain unclear. Here, we...
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Unsteady Aerodynamic Forces and Power Consumption of a Micro Flap** Rotary Wing in Hovering Flight
The micro Flap** Rotary Wing (FRW) concept inspired by insects was proposed recently. Its aerodynamic performance is highly related to wing pitching and rotational motions. Therefore, the effect of wing pitc...
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RNAi Silencing of HIF-1α Ameliorates Lupus Development in MRL/lpr Mice
Th17 cell and IL-17-mediated autoimmunity and inflammatory responses have been implicated in the development of organ damage in systemic lupus erythematosus (SLE), and new evidence suggests that hypoxia-induci...
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Aerodynamics and Propulsive Efficiency of a Blended-Wing-Body Aircraft with Distributed Propulsion System During Takeoff
A blended-wing-body aircraft with distributed propulsion system is a new design concept proposed in recent years to achieve the N + 3 goal. Distributed engines can be embedded on different positions on the upp...
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Volumetric measurement and vorticity dynamics of leading-edge vortex formation on a revolving wing
Leading-edge vortex (LEV) is a hallmark of insect flight that forms and remains stably attached on high angle-of-attack (AoA), low aspect ratio (AR) wings undergoing revolving or flap** motion. Despite the e...
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Open AccessDoes isolated greater trochanter implication affect hip abducent strength and functions in intertrochanteric fracture?
A fracture in the isolated greater trochanter is an infrequent type of femoral intertrochanteric fracture. The gluteus medius and gluteus minimus are abducent muscle groups with attachments located on the grea...
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Open AccessmiR-21 promotes non-small cell lung cancer cells growth by regulating fatty acid metabolism
Lung cancer is one of the most common malignant tumors worldwide. CD36 is a receptor for fatty acids and plays an important role in regulating fatty acid metabolism, which is closely related to tumorigenesis a...
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Open AccessAerodynamics and dynamic stability of micro-air-vehicle with four flap** wings in hovering flight
Recently, a novel concept of flap** Micro-Air-Vehicles (FMAVs) with four wings has been proposed, which potentially utilizes the clap-and-fling effect for lift enhancement and agile maneuvers through an adju...
