Back pressure

The 781m twin tunnel in line No 1 Ben Thanh – Suoi Tien was the first tunnels constructed by Earth Pressure Balance Tunnel Boring Machine (EPB TBM) in the urban area in Ho Chi Minh City, Vietnam. Field data on a surface settlement at three sections, measured during the construction period from May 2017 to June 2018, are used for back analyses on the development of surface settlement with the corresponding advancement of the EPB TBM.

8p viohoyo 25-04-2024 3 1   Download

This study was carried out to reach a new understanding of injection rate behaviors of HVO, the relationship between discharge coefficient and the percentage of HVO in the blends, and the relationship between discharge coefficient and injection pressure, back pressure, injection length command.

14p vimarillynhewson 02-01-2024 4 2   Download

Part 1 of ebook "A field guide to automotive technology" provide readers with content about: a brief history of wheeled vehicle technology; on the car; autopark and back-up proximity systems; hubcaps and spinners; windshield wipers; inside the car; air conditioning; automatic windshield wipers; global positioning system (GPS); hand-cranked window; steering wheel; temperature gauge; tire pressure gauge;... Please refer to the part 1 of ebook for details!

117p langmongnhu 14-12-2022 11 3   Download

The rapid development in the economy and the urban population in cities in Vietnam in recent years leads to dramatic growth in traffic congestion, noise and air pollution, and environmental degradation. This paper presents a back analysis for the stability of the tunnelling process in the project.

9p vibentley 08-09-2022 15 4   Download

Pressure pain thresholds (PPT) are commonly used to quantify mechanical pain sensitivity of deep structures. Excellent PPT reliability has been previously reported among the low back of healthy subjects. However, there is a lack of studies assessing PPT over the low back of workers exposed to biomechanical risk factors of low back pain.

11p vioregon2711 22-02-2021 11 1   Download

In a prior randomized trial, we demonstrated that participants receiving spinal manipulative therapy at a pain-sensitive segment instead of a stiff segment experienced increased mechanical pressure pain thresholds. We hypothesized that the targeted segment mediated this increase through a segment-dependent neurophysiological reflective pathway.

12p vivermont2711 28-01-2021 8 2   Download

Lumbar spinal stenosis (LSS) is frequently associated with postural instability. Although several studies evaluated patients’ functional impairments, underlying sensorimotor mechanisms are still poorly understood. We aimed to assess the specific set of postural control deficits associated with LSS during spontaneous and externally perturbed stance and evaluated post-surgical changes in postural behavior.

13p vivermont2711 28-01-2021 4 2   Download

The objectives of this study was to determine the effectiveness of race non-specific and slow-rusting resistance in reducing losses in grain yield and to identify superior recombinants for yield and its component traits having both the genes when exposed to high leaf rust pressure.

8p cothumenhmong9 04-01-2021 9 1   Download

Pressure biofeedback unit (PBU) is a widely used non-invasive device to assist core muscle training by providing pressure feedback. The aim this study was to compare the muscle activities of transverse abdominis (TA) and multifidus (MF) at different target pressures (50, 60 and 70 mmHg) of PBU between individuals with and without cLBP.

9p vimariana2711 22-12-2020 12 1   Download

This paper presents an electric back sprayer based on the attributes required by sprayer users with the Quality Function Deployment (QFD) methodology by optimizing sprayers owned by farmers. In agriculture, the process of crop management and care and pest control is carried out routinely to obtain optimal results. The technical implementation of these efforts is carried out through soil and air media by spraying the plant organs. To keep the pressure and spray results stable, continuous pumping is required. This resulted in certainly more energy needed.

6p lucastanguyen 28-05-2020 26 1   Download

The exhaust system being a critical system of any automotive vehicle plays a responsible role of improving the ride quality of the vehicle and fuel economy. The effective design of exhaust system is critical in order to ensure the required exhaust gas is exited from the engine and at the same time, the noise is attenuated. The exhaust system attenuates the noise from the engine without deteriorating the engine performance by ensuring an optimum value of exhaust backpressure.

10p trinhthamhodang1212 04-04-2020 47 1   Download

Hypertension is an emerging public health problem in South Africa. Recent evidence from longitudinal studies has shown that hypertension in adulthood can be traced back to childhood. There is scarcity of longitudinal data on paediatric blood pressure (BP) particularly in African populations.

7p vichengshin2711 26-02-2020 12 0   Download

Ground improvement technique by prefabricated vertical drain (PVD) in combination with vacuum preloading is widely used to facilitate consolidation process and reduce residual settlement. However, this technique seem hardly be estimated by both analytical method and numerical method because it has complex boundary conditions (such as vacuum pressure changing with time). Moreover, lateral displacements caused by this technique are also significant problem.

18p chauchaungayxua1 03-12-2019 43 1   Download

In the case of wireless networks the scheduling decisions are made using counters called shadow queues. The results are also extended to the case of networks that employ simple forms of network coding. In that case, our algorithm provides a low-complexity solution to optimally exploit the routing–coding tradeoff.

5p byphasse043256 21-03-2019 27 3   Download

The Japanese love their landscapes tamed and manicured, more parks than wilderness. 12 They like artfully to prune their pines, cultivate simple flower and rock gardens, arrange a waterfall, attract some geese, walk a path with a geometrically rising curve, look back, and enjoy the moon rising over the temple, silhouetting it all. They are hardly interested in admiring a pristine ecosystem or geological formations.

15p giamdocamnhac 06-04-2013 54 6   Download

One thing that hasn’t changed is that retail is still physically and mentally hard work. The pressure’s always on; we’re only ever as good as our last trading day. Every time we open the store, what follows could be a disaster or a triumph. And that’s the thrill of the thing, that’s why we do it—get things right, get the team pulling together, make customers happy, and take some money . . . well, those are the days that keep us coming back for more. Getting retail right is thrilling—magic, even...

241p namde01 04-04-2013 79 19   Download

Trade unions representing taxi drivers and long-haul truck drivers, who are prohibited by law from raising their rates even when expenses rise, have been pressuring the government to roll back some of what are among Europe's highest fuel taxes to lessen the blow of high oil prices. This is the second time this summer that the government has entertained the possibility of rolling back an environmental measure because of temporary conditions.

32p nhacnenzingme 23-03-2013 52 5   Download

The idea to apply an assessment of ecosystem health to environmental management emerged in the late 1980s. The parallels with the assessment of human health are very obvious. We go to the doctor to get a diagnosis (to determine what is wrong) and hopefully initiate a cure to bring us back to normal. The doctor will take various measurements and make examinations (pulse, blood pressure, sugar in the urine etc.) before making a diagnosis and suggesting a cure.

464p phoebe75 01-02-2013 61 15   Download

Something amazing happened aft er my husband, Dan, and I had weight-loss surgery. Th e amazing thing wasn’t that we had this procedure together, on the same day, in the same hospital, with the same surgeon. It wasn’t just losing weight, even though in the following eight months, we had lost 300 pounds between us. It was a combination of everything. Triggered by the surgery, our health began improving from the very fi rst day. Th e weight loss reversed medical conditions such as high blood pressure, hypertension, joint and back pain, and even diabetes.

240p cronus75 13-01-2013 42 4   Download

When one thinks of illnesses and diseases that result from obesity, most people think of heart disease, high blood pressure, and diabetes. We refer to these as the big three. But the list is very long and includes: depression/social isolation, arthritis/back pain, pulmonary embolus (blood clots from the legs, thighs, to the lungs), gallbladder disease, sleep apnea, infertility in women, increased cancer risk in men and women, chronic lack of energy, etc. For over twenty years I have practiced medicine in New York City.

207p cronus75 13-01-2013 57 4   Download