• Journal of International Academy of Physical Therapy Research
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• v.2 no.2
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• pp.318-323
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• 2011

The purpose of this study identify that spinal decompression therapy effect on and pain, length Of leg distance(LLD), and muscle power and flexibility in patient with low back pain. The participants is 20 female and male with low back pain, and participant assign to decompression therapy group and control group at random. The decompression therapy apply to 20 minute 3 time for a week during 4 weeks. The Measurement items is pain, LLD, and muscle power, flexibility. The comparison between the before and after was Wilcoxon's U test, and 2 group after spinal decompression therapy application compared Mann-Whithney U test. Spinal decompression therapy reduced statistically significance the pain, LLD, and increased statistically significance the muscle power and flexibility increased the muscle power(p<.05). This study showed that spinal decompression therapy does affect pain, LLD, and muscle power and flexibility in patient with low back pain.

• The Journal of Korean Physical Therapy
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• v.29 no.6
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• pp.299-302
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• 2017

Purpose: The purpose of this study was to examine the effects of spinal decompression therapy on pain and disability in patients with chronic low back pain. Methods: Twenty patients with chronic low back pain were divided into an experimental group (spinal decompression therapy, n=10) and a control group (conservative physical therapy, n=10). Both groups were treated three times a week over a four-week period. Results: The comparison of between-group changes post-treatment revealed statistically significant lower levels of pain and disability in the experimental group than the control group. The comparison of within each group changes before and after the treatment showed statistically significant declines in pain and disability indexes of both groups. Conclusion: Spinal decompression therapy may be an effective intervention for improving pain and disability in patients with chronic low back pain.

• Journal of Power System Engineering
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• v.10 no.1
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• pp.90-95
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• 2006

Pneumatic control systems have been mainly used as a high speed operating system. Therefore, state change of air in a control volume was assumed to be adiabatic change and, pneumatic control systems have been analyzed by using this assumption. Especially, when absolute value of pressure change in the control volume is small, there is a tendency to neglect effect of temperature change on pneumatic control system because temperature change owing to pressure change is small. In this study, an effect of temperature change of air on the decompression control process was analyzed by considering change of mass flow rate, and heat transfer characteristics between air in the chamber and the chamber wall. As a result, this study could confirm that a slight temperature change of the air in the pneumatic pressure control system can influence on the dynamic characteristics of pressure response, and pressure control performance.

• Journal of Korea Foundry Society
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• v.29 no.5
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• pp.238-243
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• 2009

This study has been carried out to investigate the cooling ability improvement of diecasting mold by decompression cooling system. The decompression cooling system was applied to the new/used oil pump cover molds. The temperature of the surface mold applied the decompression cooling system fell to 15 degrees, especially in case of the used mold. The defect ratio of the oil pump cover manufactured by decompression cooling system has decreased from 2.8 percent to 0.2 percent. According to the results of the cooling ability improvement of diecasting mold by decompression cooling system, the decompression degree and supply pressure were set up the control item to apply the decompression cooling system to the diecasting mold in the industry field.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.5
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• pp.207-216
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• 2023

For decoding-compatible parallel Deflate algorithm, this study proposed a new method of the control header being made in such a way that essential information for parallel compression and decompression are stored in the Disposed Bit Area (DBA) of the non-compression block and being inserted into the compressed blocks. Through this, parallel compression and decompression are possible while maintaining perfect compatibility with the existing decoder. After applying this method, the compression time was reduced by up to 71.2% compared to the sequential processing method, and the parallel decompression time was reduced by up to 65.7%. In particular, it is well known that parallel decompression is impossible due to the structural limitations of the Deflate algorithm. However, the decoder equipped with the proposed method enables high-speed parallel decompression at the algorithm level and maintains compatibility, so that parallelly compressed data can be decoded normally by existing decoder programs.

• Journal of Korean Neurosurgical Society
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• v.30 no.4
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• pp.479-485
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• 2001

Objective : Several conservative treatments have been tried in peripheral facial nerve paralysis, because 80% of patients recover spontaneously. Surgical decompression may be helpful to the residual, medically intractable patients. We present here our experiences of facial nerve decompression via middle fossa approach, which seems to be one of good surgical therapeutic options for medically refractory peripheral facial nerve paralysis. Method : Three cases of medically intractable peripheral type facial paralysis were microscopically operated via middle cranial fossa approach to decompress the labyrinthine segment of the facial nerve and geniculate ganglion by searching landmarks of middle meningeal artery, greater superficial petrosal nerve and facial hiatus. Results : After operation, two cases of Bell's palsy improved substantially and one case of post-traumatic facial paralysis improved partially. Conclusion : This report is presented to describe the surgical facial nerve decompression via middle fossa for early control of peripheral type facial paralysis. Surgical decompression of edematous peripherally paralysed facial nerve could be preferred to conservative treatment in some patients although more surgical experience should be required.

• Journal of Acupuncture Research
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• v.25 no.1
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• pp.131-138
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• 2008

Objectives : Spine decompression therapy has recently become a popular academic field as it has proven to be a great alternative to the limitations of Western medical treatment. However, little study examined spine decompression therapy for lumbago. Thus, this study aimed to investigate the sense of improvement and satisfaction from the lumbago patients reported after being treated with spine decompression therapy. Methods : A total of 80 subjects that consists of lumbago patients were participated in this study. The experimental group(50 subjects) was treated with spine decompression therapy and acupuncture, and the control group(30 subjects) was treated with acupuncture. All the subjects were asked to complete the VAS(visual analogue scale) and ODI(Oswestry disability index) before and after the treatment. Results : A comparison of VAS and ODI results of the two groups shows that the spine decompression and acupuncture treatment group reported more effective relief from lumbago than the acupuncture treatment group.

• Journal of Korean Neurosurgical Society
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• v.40 no.6
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• pp.450-454
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• 2006

The incidence of vertebral artery injury during the anterior approach to the cervical spine is rare, but potentially lethal. The authors describe two cases of vertebral artery injury during anterior cervical decompression surgery. In the first case, infection was the cause of the vertebral artery injury. During aggressive irrigation and pus drainage, massive bleeding was encountered, and intraoperative direct packing with hemostatic agents provided effective control of hemorrhage. Ten days after surgery, sudden neck swelling and mental deterioration occurred because of rebleeding from a pseudoaneurysm. In the second case, the vertebral artery was injured during decompression of cervical spondylosis while drilling the neural foramen. After intraoperative control of bleeding, the patient was referred to our hospital, and a pseudoaneurysm was detected by angiography four days after surgery. Both pseudoaneurysms were successfully occluded by an endovascular technique without any neurological sequelae. Urgent vertebral angiography, following intraoperative control of bleeding by hemostatic compression in cases of vertebral artery injury during anterior cervical decompression, should be performed to avoid life-threatening complications. Prompt recognition of pseudoaneurysm is mandatory, and endovascular treatment can be life saving.

• Journal of Korean Neurosurgical Society
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• v.65 no.6
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• pp.853-860
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• 2022

Objective : This prospective, randomized, double-blinded trial aimed to evaluate the efficacy and safety of prophylactic ramosetron administration against postoperative nausea and vomiting (PONV) in patients undergoing microvascular decompression (MVD). Methods : In this study, 100 patients undergoing MVD were randomly allocated to the control (normal saline, 2 mL) or ramosetron (ramosetron, 0.3 mg) groups at the end of surgery. The incidence and severity of PONV, need for rescue antiemetics, patient satisfaction score, duration of hospital stay, and the occurrence of adverse events were evaluated 48 hours post-surgery. Results : Data obtained from 97 patients were included in the final analysis. The incidence of PONV was significantly lower in the ramosetron group than in the control group throughout the 48-hour postoperative period (29.2% vs. 51.0%, p=0.028). A similar trend was observed with regard to PONV severity (p=0.041). The need for rescue antiemetics, satisfaction score, duration of hospital stays, and the occurrence of adverse events did not significantly differ between the groups. Conclusion : Prophylactic ramosetron administration reduced the incidence and severity of PONV in patients undergoing MVD without causing serious adverse events. Thus, ramosetron use may improve patient recovery following MVD.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.175-181
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• 2019

In the case of a conventional single stage decompression regulator used for large depressurization in the hydrogen fuel cell system of a fuel cell electric vehicle (FCEV), problems can arise, such as pulsation, slow response, hydrogen brittleness, leakage, high weight, and high cost due to high decompression. Most of these problems can be overcome easily using two decompression mechanisms (two-stage structures). In addition, a wide outlet-pressure control range can be secured if an electronic solenoid is applied to the second decompression. Accordingly, it is necessary to improve the precision of the outlet pressure of a two-stage pressure-reducing regulator and develop techniques, such as leakage prevention, durability, light weight, and price reduction. Therefore, to improve the outlet pressure accuracy and prevent leakage, the structural part before and after decompression to improve the air tightness were divided and the analysis was carried out assuming that the valve part was closed (open ratio: 0%) after each initial internal pressure application.